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* [PATCH 0/3] Update firmware to v62.0.0
@ 2021-06-16  0:12 ` Matthew Brost
  0 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:12 UTC (permalink / raw)
  To: intel-gfx, dri-devel
  Cc: daniele.ceraolospurio, john.c.harrison, Michal.Wajdeczko

As part of enabling GuC submission [1] we need to update to the latest
and greatest firmware. This series does that. All backwards
compatibility breaking changes squashed into a single patch #2. Same
series sent to trybot [2] forcing GuC to be enabled to ensure we haven't
broke something.

v2: Address comments, looking for remaning RBs so patches can be
squashed and sent for CI
v3: Delete a few unused defines, squash patches
v4: Add values back into kernel doc, fix docs warning

Signed-off-by: Matthew Brost <matthew.brost@intel.com>

[1] https://patchwork.freedesktop.org/series/89844
[2] https://patchwork.freedesktop.org/series/91341 

Michal Wajdeczko (3):
  drm/i915/guc: Introduce unified HXG messages
  drm/i915/guc: Update firmware to v62.0.0
  drm/i915/doc: Include GuC ABI documentation

 Documentation/gpu/i915.rst                    |   8 +
 .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
 .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
 .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
 .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 +++++++++++
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
 13 files changed, 748 insertions(+), 421 deletions(-)

-- 
2.28.0


^ permalink raw reply	[flat|nested] 19+ messages in thread

* [Intel-gfx] [PATCH 0/3] Update firmware to v62.0.0
@ 2021-06-16  0:12 ` Matthew Brost
  0 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:12 UTC (permalink / raw)
  To: intel-gfx, dri-devel

As part of enabling GuC submission [1] we need to update to the latest
and greatest firmware. This series does that. All backwards
compatibility breaking changes squashed into a single patch #2. Same
series sent to trybot [2] forcing GuC to be enabled to ensure we haven't
broke something.

v2: Address comments, looking for remaning RBs so patches can be
squashed and sent for CI
v3: Delete a few unused defines, squash patches
v4: Add values back into kernel doc, fix docs warning

Signed-off-by: Matthew Brost <matthew.brost@intel.com>

[1] https://patchwork.freedesktop.org/series/89844
[2] https://patchwork.freedesktop.org/series/91341 

Michal Wajdeczko (3):
  drm/i915/guc: Introduce unified HXG messages
  drm/i915/guc: Update firmware to v62.0.0
  drm/i915/doc: Include GuC ABI documentation

 Documentation/gpu/i915.rst                    |   8 +
 .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
 .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
 .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
 .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 +++++++++++
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
 13 files changed, 748 insertions(+), 421 deletions(-)

-- 
2.28.0

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 19+ messages in thread

* [PATCH 1/3] drm/i915/guc: Introduce unified HXG messages
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
@ 2021-06-16  0:13   ` Matthew Brost
  -1 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:13 UTC (permalink / raw)
  To: intel-gfx, dri-devel
  Cc: daniele.ceraolospurio, john.c.harrison, Michal.Wajdeczko

From: Michal Wajdeczko <michal.wajdeczko@intel.com>

New GuC firmware will unify format of MMIO and CTB H2G messages.
Introduce their definitions now to allow gradual transition of
our code to match new changes.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
---
 .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 ++++++++++++++++++
 1 file changed, 213 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
index 775e21f3058c..29ac823acd4c 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
@@ -6,6 +6,219 @@
 #ifndef _ABI_GUC_MESSAGES_ABI_H
 #define _ABI_GUC_MESSAGES_ABI_H
 
+/**
+ * DOC: HXG Message
+ *
+ * All messages exchanged with GuC are defined using 32 bit dwords.
+ * First dword is treated as a message header. Remaining dwords are optional.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  |   |       |                                                              |
+ *  | 0 |    31 | **ORIGIN** - originator of the message                       |
+ *  |   |       |   - _`GUC_HXG_ORIGIN_HOST` = 0                               |
+ *  |   |       |   - _`GUC_HXG_ORIGIN_GUC` = 1                                |
+ *  |   |       |                                                              |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | **TYPE** - message type                                      |
+ *  |   |       |   - _`GUC_HXG_TYPE_REQUEST` = 0                              |
+ *  |   |       |   - _`GUC_HXG_TYPE_EVENT` = 1                                |
+ *  |   |       |   - _`GUC_HXG_TYPE_NO_RESPONSE_BUSY` = 3                     |
+ *  |   |       |   - _`GUC_HXG_TYPE_NO_RESPONSE_RETRY` = 5                    |
+ *  |   |       |   - _`GUC_HXG_TYPE_RESPONSE_FAILURE` = 6                     |
+ *  |   |       |   - _`GUC_HXG_TYPE_RESPONSE_SUCCESS` = 7                     |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **AUX** - auxiliary data (depends on TYPE)                   |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **PAYLOAD** - optional payload (depends on TYPE)             |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_MSG_MIN_LEN			1u
+#define GUC_HXG_MSG_0_ORIGIN			(0x1 << 31)
+#define   GUC_HXG_ORIGIN_HOST			0u
+#define   GUC_HXG_ORIGIN_GUC			1u
+#define GUC_HXG_MSG_0_TYPE			(0x7 << 28)
+#define   GUC_HXG_TYPE_REQUEST			0u
+#define   GUC_HXG_TYPE_EVENT			1u
+#define   GUC_HXG_TYPE_NO_RESPONSE_BUSY		3u
+#define   GUC_HXG_TYPE_NO_RESPONSE_RETRY	5u
+#define   GUC_HXG_TYPE_RESPONSE_FAILURE		6u
+#define   GUC_HXG_TYPE_RESPONSE_SUCCESS		7u
+#define GUC_HXG_MSG_0_AUX			(0xfffffff << 0)
+#define GUC_HXG_MSG_n_PAYLOAD			(0xffffffff << 0)
+
+/**
+ * DOC: HXG Request
+ *
+ * The `HXG Request`_ message should be used to initiate synchronous activity
+ * for which confirmation or return data is expected.
+ *
+ * The recipient of this message shall use `HXG Response`_, `HXG Failure`_
+ * or `HXG Retry`_ message as a definite reply, and may use `HXG Busy`_
+ * message as a intermediate reply.
+ *
+ * Format of @DATA0 and all @DATAn fields depends on the @ACTION code.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | **DATA0** - request data (depends on ACTION)                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | **ACTION** - requested action code                           |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **DATAn** - optional data (depends on ACTION)                |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_REQUEST_MSG_MIN_LEN		GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_REQUEST_MSG_0_DATA0		(0xfff << 16)
+#define GUC_HXG_REQUEST_MSG_0_ACTION		(0xffff << 0)
+#define GUC_HXG_REQUEST_MSG_n_DATAn		GUC_HXG_MSG_n_PAYLOAD
+
+/**
+ * DOC: HXG Event
+ *
+ * The `HXG Event`_ message should be used to initiate asynchronous activity
+ * that does not involves immediate confirmation nor data.
+ *
+ * Format of @DATA0 and all @DATAn fields depends on the @ACTION code.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_EVENT_                                   |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | **DATA0** - event data (depends on ACTION)                   |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | **ACTION** - event action code                               |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **DATAn** - optional event  data (depends on ACTION)         |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_EVENT_MSG_MIN_LEN		GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_EVENT_MSG_0_DATA0		(0xfff << 16)
+#define GUC_HXG_EVENT_MSG_0_ACTION		(0xffff << 0)
+#define GUC_HXG_EVENT_MSG_n_DATAn		GUC_HXG_MSG_n_PAYLOAD
+
+/**
+ * DOC: HXG Busy
+ *
+ * The `HXG Busy`_ message may be used to acknowledge reception of the `HXG Request`_
+ * message if the recipient expects that it processing will be longer than default
+ * timeout.
+ *
+ * The @COUNTER field may be used as a progress indicator.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_NO_RESPONSE_BUSY_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **COUNTER** - progress indicator                             |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_BUSY_MSG_LEN			GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_BUSY_MSG_0_COUNTER		GUC_HXG_MSG_0_AUX
+
+/**
+ * DOC: HXG Retry
+ *
+ * The `HXG Retry`_ message should be used by recipient to indicate that the
+ * `HXG Request`_ message was dropped and it should be resent again.
+ *
+ * The @REASON field may be used to provide additional information.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_NO_RESPONSE_RETRY_                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **REASON** - reason for retry                                |
+ *  |   |       |  - _`GUC_HXG_RETRY_REASON_UNSPECIFIED` = 0                   |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_RETRY_MSG_LEN			GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_RETRY_MSG_0_REASON		GUC_HXG_MSG_0_AUX
+#define   GUC_HXG_RETRY_REASON_UNSPECIFIED	0u
+
+/**
+ * DOC: HXG Failure
+ *
+ * The `HXG Failure`_ message shall be used as a reply to the `HXG Request`_
+ * message that could not be processed due to an error.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_FAILURE_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | **HINT** - additional error hint                             |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | **ERROR** - error/result code                                |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_FAILURE_MSG_LEN			GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_FAILURE_MSG_0_HINT		(0xfff << 16)
+#define GUC_HXG_FAILURE_MSG_0_ERROR		(0xffff << 0)
+
+/**
+ * DOC: HXG Response
+ *
+ * The `HXG Response`_ message shall be used as a reply to the `HXG Request`_
+ * message that was successfully processed without an error.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **DATA0** - data (depends on ACTION from `HXG Request`_)     |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **DATAn** - data (depends on ACTION from `HXG Request`_)     |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_RESPONSE_MSG_MIN_LEN		GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_RESPONSE_MSG_0_DATA0		GUC_HXG_MSG_0_AUX
+#define GUC_HXG_RESPONSE_MSG_n_DATAn		GUC_HXG_MSG_n_PAYLOAD
+
+/* deprecated */
 #define INTEL_GUC_MSG_TYPE_SHIFT	28
 #define INTEL_GUC_MSG_TYPE_MASK		(0xF << INTEL_GUC_MSG_TYPE_SHIFT)
 #define INTEL_GUC_MSG_DATA_SHIFT	16
-- 
2.28.0


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [Intel-gfx] [PATCH 1/3] drm/i915/guc: Introduce unified HXG messages
@ 2021-06-16  0:13   ` Matthew Brost
  0 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:13 UTC (permalink / raw)
  To: intel-gfx, dri-devel

From: Michal Wajdeczko <michal.wajdeczko@intel.com>

New GuC firmware will unify format of MMIO and CTB H2G messages.
Introduce their definitions now to allow gradual transition of
our code to match new changes.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
---
 .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 ++++++++++++++++++
 1 file changed, 213 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
index 775e21f3058c..29ac823acd4c 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
@@ -6,6 +6,219 @@
 #ifndef _ABI_GUC_MESSAGES_ABI_H
 #define _ABI_GUC_MESSAGES_ABI_H
 
+/**
+ * DOC: HXG Message
+ *
+ * All messages exchanged with GuC are defined using 32 bit dwords.
+ * First dword is treated as a message header. Remaining dwords are optional.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  |   |       |                                                              |
+ *  | 0 |    31 | **ORIGIN** - originator of the message                       |
+ *  |   |       |   - _`GUC_HXG_ORIGIN_HOST` = 0                               |
+ *  |   |       |   - _`GUC_HXG_ORIGIN_GUC` = 1                                |
+ *  |   |       |                                                              |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | **TYPE** - message type                                      |
+ *  |   |       |   - _`GUC_HXG_TYPE_REQUEST` = 0                              |
+ *  |   |       |   - _`GUC_HXG_TYPE_EVENT` = 1                                |
+ *  |   |       |   - _`GUC_HXG_TYPE_NO_RESPONSE_BUSY` = 3                     |
+ *  |   |       |   - _`GUC_HXG_TYPE_NO_RESPONSE_RETRY` = 5                    |
+ *  |   |       |   - _`GUC_HXG_TYPE_RESPONSE_FAILURE` = 6                     |
+ *  |   |       |   - _`GUC_HXG_TYPE_RESPONSE_SUCCESS` = 7                     |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **AUX** - auxiliary data (depends on TYPE)                   |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **PAYLOAD** - optional payload (depends on TYPE)             |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_MSG_MIN_LEN			1u
+#define GUC_HXG_MSG_0_ORIGIN			(0x1 << 31)
+#define   GUC_HXG_ORIGIN_HOST			0u
+#define   GUC_HXG_ORIGIN_GUC			1u
+#define GUC_HXG_MSG_0_TYPE			(0x7 << 28)
+#define   GUC_HXG_TYPE_REQUEST			0u
+#define   GUC_HXG_TYPE_EVENT			1u
+#define   GUC_HXG_TYPE_NO_RESPONSE_BUSY		3u
+#define   GUC_HXG_TYPE_NO_RESPONSE_RETRY	5u
+#define   GUC_HXG_TYPE_RESPONSE_FAILURE		6u
+#define   GUC_HXG_TYPE_RESPONSE_SUCCESS		7u
+#define GUC_HXG_MSG_0_AUX			(0xfffffff << 0)
+#define GUC_HXG_MSG_n_PAYLOAD			(0xffffffff << 0)
+
+/**
+ * DOC: HXG Request
+ *
+ * The `HXG Request`_ message should be used to initiate synchronous activity
+ * for which confirmation or return data is expected.
+ *
+ * The recipient of this message shall use `HXG Response`_, `HXG Failure`_
+ * or `HXG Retry`_ message as a definite reply, and may use `HXG Busy`_
+ * message as a intermediate reply.
+ *
+ * Format of @DATA0 and all @DATAn fields depends on the @ACTION code.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | **DATA0** - request data (depends on ACTION)                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | **ACTION** - requested action code                           |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **DATAn** - optional data (depends on ACTION)                |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_REQUEST_MSG_MIN_LEN		GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_REQUEST_MSG_0_DATA0		(0xfff << 16)
+#define GUC_HXG_REQUEST_MSG_0_ACTION		(0xffff << 0)
+#define GUC_HXG_REQUEST_MSG_n_DATAn		GUC_HXG_MSG_n_PAYLOAD
+
+/**
+ * DOC: HXG Event
+ *
+ * The `HXG Event`_ message should be used to initiate asynchronous activity
+ * that does not involves immediate confirmation nor data.
+ *
+ * Format of @DATA0 and all @DATAn fields depends on the @ACTION code.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_EVENT_                                   |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | **DATA0** - event data (depends on ACTION)                   |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | **ACTION** - event action code                               |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **DATAn** - optional event  data (depends on ACTION)         |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_EVENT_MSG_MIN_LEN		GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_EVENT_MSG_0_DATA0		(0xfff << 16)
+#define GUC_HXG_EVENT_MSG_0_ACTION		(0xffff << 0)
+#define GUC_HXG_EVENT_MSG_n_DATAn		GUC_HXG_MSG_n_PAYLOAD
+
+/**
+ * DOC: HXG Busy
+ *
+ * The `HXG Busy`_ message may be used to acknowledge reception of the `HXG Request`_
+ * message if the recipient expects that it processing will be longer than default
+ * timeout.
+ *
+ * The @COUNTER field may be used as a progress indicator.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_NO_RESPONSE_BUSY_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **COUNTER** - progress indicator                             |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_BUSY_MSG_LEN			GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_BUSY_MSG_0_COUNTER		GUC_HXG_MSG_0_AUX
+
+/**
+ * DOC: HXG Retry
+ *
+ * The `HXG Retry`_ message should be used by recipient to indicate that the
+ * `HXG Request`_ message was dropped and it should be resent again.
+ *
+ * The @REASON field may be used to provide additional information.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_NO_RESPONSE_RETRY_                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **REASON** - reason for retry                                |
+ *  |   |       |  - _`GUC_HXG_RETRY_REASON_UNSPECIFIED` = 0                   |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_RETRY_MSG_LEN			GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_RETRY_MSG_0_REASON		GUC_HXG_MSG_0_AUX
+#define   GUC_HXG_RETRY_REASON_UNSPECIFIED	0u
+
+/**
+ * DOC: HXG Failure
+ *
+ * The `HXG Failure`_ message shall be used as a reply to the `HXG Request`_
+ * message that could not be processed due to an error.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_FAILURE_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | **HINT** - additional error hint                             |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | **ERROR** - error/result code                                |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_FAILURE_MSG_LEN			GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_FAILURE_MSG_0_HINT		(0xfff << 16)
+#define GUC_HXG_FAILURE_MSG_0_ERROR		(0xffff << 0)
+
+/**
+ * DOC: HXG Response
+ *
+ * The `HXG Response`_ message shall be used as a reply to the `HXG Request`_
+ * message that was successfully processed without an error.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN                                                       |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | **DATA0** - data (depends on ACTION from `HXG Request`_)     |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |                                                              |
+ *  +---+-------+                                                              |
+ *  |...|       | **DATAn** - data (depends on ACTION from `HXG Request`_)     |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_HXG_RESPONSE_MSG_MIN_LEN		GUC_HXG_MSG_MIN_LEN
+#define GUC_HXG_RESPONSE_MSG_0_DATA0		GUC_HXG_MSG_0_AUX
+#define GUC_HXG_RESPONSE_MSG_n_DATAn		GUC_HXG_MSG_n_PAYLOAD
+
+/* deprecated */
 #define INTEL_GUC_MSG_TYPE_SHIFT	28
 #define INTEL_GUC_MSG_TYPE_MASK		(0xF << INTEL_GUC_MSG_TYPE_SHIFT)
 #define INTEL_GUC_MSG_DATA_SHIFT	16
-- 
2.28.0

_______________________________________________
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^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
@ 2021-06-16  0:13   ` Matthew Brost
  -1 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:13 UTC (permalink / raw)
  To: intel-gfx, dri-devel
  Cc: daniele.ceraolospurio, john.c.harrison, Michal.Wajdeczko

From: Michal Wajdeczko <michal.wajdeczko@intel.com>

Most of the changes to the 62.0.0 firmware revolved around CTB
communication channel. Conform to the new (stable) CTB protocol.

v2:
 (Michal)
  Add values back to kernel DOC for actions
 (Docs)
  Add 'CT buffer' back in to fix warning

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
 .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
 .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
 11 files changed, 527 insertions(+), 421 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
index 90efef8a73e4..2d6198e63ebe 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
@@ -6,6 +6,113 @@
 #ifndef _ABI_GUC_ACTIONS_ABI_H
 #define _ABI_GUC_ACTIONS_ABI_H
 
+/**
+ * DOC: HOST2GUC_REGISTER_CTB
+ *
+ * This message is used as part of the `CTB based communication`_ setup.
+ *
+ * This message must be sent as `MMIO HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | DATA0 = MBZ                                                  |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_REGISTER_CTB` = 0x4505        |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 | 31:12 | RESERVED = MBZ                                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | **TYPE** - type for the `CT Buffer`_                         |
+ *  |   |       |                                                              |
+ *  |   |       |   - _`GUC_CTB_TYPE_HOST2GUC` = 0                             |
+ *  |   |       |   - _`GUC_CTB_TYPE_GUC2HOST` = 1                             |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | **SIZE** - size of the `CT Buffer`_ in 4K units minus 1      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 2 |  31:0 | **DESC_ADDR** - GGTT address of the `CTB Descriptor`_        |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 3 |  31:0 | **BUFF_ADDF** - GGTT address of the `CT Buffer`_             |
+ *  +---+-------+--------------------------------------------------------------+
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | DATA0 = MBZ                                                  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+#define GUC_ACTION_HOST2GUC_REGISTER_CTB		0x4505
+
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 3u)
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_0_MBZ		GUC_HXG_REQUEST_MSG_0_DATA0
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_MBZ		(0xfffff << 12)
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
+#define   GUC_CTB_TYPE_HOST2GUC				0u
+#define   GUC_CTB_TYPE_GUC2HOST				1u
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE	(0xff << 0)
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
+
+#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_LEN		GUC_HXG_RESPONSE_MSG_MIN_LEN
+#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
+
+/**
+ * DOC: HOST2GUC_DEREGISTER_CTB
+ *
+ * This message is used as part of the `CTB based communication`_ teardown.
+ *
+ * This message must be sent as `MMIO HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | DATA0 = MBZ                                                  |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_DEREGISTER_CTB` = 0x4506      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 | 31:12 | RESERVED = MBZ                                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | **TYPE** - type of the `CT Buffer`_                          |
+ *  |   |       |                                                              |
+ *  |   |       | see `GUC_ACTION_HOST2GUC_REGISTER_CTB`_                      |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | RESERVED = MBZ                                               |
+ *  +---+-------+--------------------------------------------------------------+
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | DATA0 = MBZ                                                  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+#define GUC_ACTION_HOST2GUC_DEREGISTER_CTB		0x4506
+
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 1u)
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_0_MBZ	GUC_HXG_REQUEST_MSG_0_DATA0
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ	(0xfffff << 12)
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ2	(0xff << 0)
+
+#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_LEN	GUC_HXG_RESPONSE_MSG_MIN_LEN
+#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
+
+/* legacy definitions */
+
 enum intel_guc_action {
 	INTEL_GUC_ACTION_DEFAULT = 0x0,
 	INTEL_GUC_ACTION_REQUEST_PREEMPTION = 0x2,
diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
index d38935f47ecf..29fc93a8b5be 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
@@ -7,6 +7,110 @@
 #define _ABI_GUC_COMMUNICATION_CTB_ABI_H
 
 #include <linux/types.h>
+#include <linux/build_bug.h>
+
+#include "guc_messages_abi.h"
+
+/**
+ * DOC: CT Buffer
+ *
+ * Circular buffer used to send / receive CTBs (H2G or G2H)
+ */
+
+/**
+ * DOC: CTB Descriptor
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |  31:0 | **HEAD** - offset (in dwords) to the last dword that was     |
+ *  |   |       | read from the `CT Buffer`_.                                  |
+ *  |   |       | It can only be updated by the receiver.                      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 | **TAIL** - offset (in dwords) to the last dword that was     |
+ *  |   |       | written to the `CT Buffer`_.                                 |
+ *  |   |       | It can only be updated by the sender.                        |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 2 |  31:0 | **STATUS** - status of the CTB                               |
+ *  |   |       |                                                              |
+ *  |   |       |   - _`GUC_CTB_STATUS_NO_ERROR` = 0 (normal operation)        |
+ *  |   |       |   - _`GUC_CTB_STATUS_OVERFLOW` = 1 (head/tail too large)     |
+ *  |   |       |   - _`GUC_CTB_STATUS_UNDERFLOW` = 2 (truncated message)      |
+ *  |   |       |   - _`GUC_CTB_STATUS_MISMATCH` = 4 (head/tail modified)      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  |...|       | RESERVED = MBZ                                               |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 15|  31:0 | RESERVED = MBZ                                               |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+struct guc_ct_buffer_desc {
+	u32 head;
+	u32 tail;
+	u32 status;
+#define GUC_CTB_STATUS_NO_ERROR				0
+#define GUC_CTB_STATUS_OVERFLOW				(1 << 0)
+#define GUC_CTB_STATUS_UNDERFLOW			(1 << 1)
+#define GUC_CTB_STATUS_MISMATCH				(1 << 2)
+	u32 reserved[13];
+} __packed;
+static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
+
+/**
+ * DOC: CTB Message
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 | 31:16 | **FENCE** - message identifier                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 15:12 | **FORMAT** - format of the CTB message                       |
+ *  |   |       |  - _`GUC_CTB_FORMAT_HXG` = 0 - see `CTB HXG Message`_        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | **RESERVED**                                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | **NUM_DWORDS** - length of the CTB message (w/o header)      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 | optional (depends on FORMAT)                                 |
+ *  +---+-------+                                                              |
+ *  |...|       |                                                              |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_CTB_MSG_MIN_LEN			1u
+#define GUC_CTB_MSG_MAX_LEN			256u
+#define GUC_CTB_MSG_0_FENCE			(0xffff << 16)
+#define GUC_CTB_MSG_0_FORMAT			(0xf << 12)
+#define   GUC_CTB_FORMAT_HXG			0u
+#define GUC_CTB_MSG_0_RESERVED			(0xf << 8)
+#define GUC_CTB_MSG_0_NUM_DWORDS		(0xff << 0)
+
+/**
+ * DOC: CTB HXG Message
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 | 31:16 | FENCE                                                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 15:12 | FORMAT = GUC_CTB_FORMAT_HXG_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | RESERVED = MBZ                                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG message  |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+  |                                                        |  |
+ *  |...|       |  |  Embedded `HXG Message`_                               |  |
+ *  +---+-------+  |                                                        |  |
+ *  | n |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_CTB_HXG_MSG_MIN_LEN		(GUC_CTB_MSG_MIN_LEN + GUC_HXG_MSG_MIN_LEN)
+#define GUC_CTB_HXG_MSG_MAX_LEN		GUC_CTB_MSG_MAX_LEN
 
 /**
  * DOC: CTB based communication
@@ -60,28 +164,6 @@
  * - **flags**, holds various bits to control message handling
  */
 
-/*
- * Describes single command transport buffer.
- * Used by both guc-master and clients.
- */
-struct guc_ct_buffer_desc {
-	u32 addr;		/* gfx address */
-	u64 host_private;	/* host private data */
-	u32 size;		/* size in bytes */
-	u32 head;		/* offset updated by GuC*/
-	u32 tail;		/* offset updated by owner */
-	u32 is_in_error;	/* error indicator */
-	u32 reserved1;
-	u32 reserved2;
-	u32 owner;		/* id of the channel owner */
-	u32 owner_sub_id;	/* owner-defined field for extra tracking */
-	u32 reserved[5];
-} __packed;
-
-/* Type of command transport buffer */
-#define INTEL_GUC_CT_BUFFER_TYPE_SEND	0x0u
-#define INTEL_GUC_CT_BUFFER_TYPE_RECV	0x1u
-
 /*
  * Definition of the command transport message header (DW0)
  *
diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
index be066a62e9e0..bbf1ddb77434 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
@@ -7,46 +7,43 @@
 #define _ABI_GUC_COMMUNICATION_MMIO_ABI_H
 
 /**
- * DOC: MMIO based communication
+ * DOC: GuC MMIO based communication
  *
- * The MMIO based communication between Host and GuC uses software scratch
- * registers, where first register holds data treated as message header,
- * and other registers are used to hold message payload.
+ * The MMIO based communication between Host and GuC relies on special
+ * hardware registers which format could be defined by the software
+ * (so called scratch registers).
  *
- * For Gen9+, GuC uses software scratch registers 0xC180-0xC1B8,
- * but no H2G command takes more than 8 parameters and the GuC FW
- * itself uses an 8-element array to store the H2G message.
+ * Each MMIO based message, both Host to GuC (H2G) and GuC to Host (G2H)
+ * messages, which maximum length depends on number of available scratch
+ * registers, is directly written into those scratch registers.
  *
- *      +-----------+---------+---------+---------+
- *      |  MMIO[0]  | MMIO[1] |   ...   | MMIO[n] |
- *      +-----------+---------+---------+---------+
- *      | header    |      optional payload       |
- *      +======+====+=========+=========+=========+
- *      | 31:28|type|         |         |         |
- *      +------+----+         |         |         |
- *      | 27:16|data|         |         |         |
- *      +------+----+         |         |         |
- *      |  15:0|code|         |         |         |
- *      +------+----+---------+---------+---------+
+ * For Gen9+, there are 16 software scratch registers 0xC180-0xC1B8,
+ * but no H2G command takes more than 4 parameters and the GuC firmware
+ * itself uses an 4-element array to store the H2G message.
  *
- * The message header consists of:
+ * For Gen11+, there are additional 4 registers 0x190240-0x19024C, which
+ * are, regardless on lower count, preferred over legacy ones.
  *
- * - **type**, indicates message type
- * - **code**, indicates message code, is specific for **type**
- * - **data**, indicates message data, optional, depends on **code**
- *
- * The following message **types** are supported:
- *
- * - **REQUEST**, indicates Host-to-GuC request, requested GuC action code
- *   must be priovided in **code** field. Optional action specific parameters
- *   can be provided in remaining payload registers or **data** field.
- *
- * - **RESPONSE**, indicates GuC-to-Host response from earlier GuC request,
- *   action response status will be provided in **code** field. Optional
- *   response data can be returned in remaining payload registers or **data**
- *   field.
+ * The MMIO based communication is mainly used during driver initialization
+ * phase to setup the `CTB based communication`_ that will be used afterwards.
  */
 
-#define GUC_MAX_MMIO_MSG_LEN		8
+#define GUC_MAX_MMIO_MSG_LEN		4
+
+/**
+ * DOC: MMIO HXG Message
+ *
+ * Format of the MMIO messages follows definitions of `HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+  |                                                        |  |
+ *  |...|       |  |  Embedded `HXG Message`_                               |  |
+ *  +---+-------+  |                                                        |  |
+ *  | n |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
 
 #endif /* _ABI_GUC_COMMUNICATION_MMIO_ABI_H */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index f147cb389a20..6661dcb02239 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
 
 	BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
 	BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
-	BUILD_BUG_ON(!DPC_BUFFER_SIZE);
-	BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
-	BUILD_BUG_ON(!ISR_BUFFER_SIZE);
-	BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
+	BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
+	BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
 
 	BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
 			(GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
-	BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
-			(GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
-	BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
-			(GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
+	BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
+			(GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
 
 	flags = GUC_LOG_VALID |
 		GUC_LOG_NOTIFY_ON_HALF_FULL |
 		FLAG |
 		((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
-		((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
-		((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
+		((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
 		(offset << GUC_LOG_BUF_ADDR_SHIFT);
 
 	#undef UNIT
@@ -376,29 +371,27 @@ void intel_guc_fini(struct intel_guc *guc)
 /*
  * This function implements the MMIO based host to GuC interface.
  */
-int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
+int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request, u32 len,
 			u32 *response_buf, u32 response_buf_size)
 {
+	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
 	struct intel_uncore *uncore = guc_to_gt(guc)->uncore;
-	u32 status;
+	u32 header;
 	int i;
 	int ret;
 
 	GEM_BUG_ON(!len);
 	GEM_BUG_ON(len > guc->send_regs.count);
 
-	/* We expect only action code */
-	GEM_BUG_ON(*action & ~INTEL_GUC_MSG_CODE_MASK);
-
-	/* If CT is available, we expect to use MMIO only during init/fini */
-	GEM_BUG_ON(*action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
-		   *action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, request[0]) != GUC_HXG_ORIGIN_HOST);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, request[0]) != GUC_HXG_TYPE_REQUEST);
 
 	mutex_lock(&guc->send_mutex);
 	intel_uncore_forcewake_get(uncore, guc->send_regs.fw_domains);
 
+retry:
 	for (i = 0; i < len; i++)
-		intel_uncore_write(uncore, guc_send_reg(guc, i), action[i]);
+		intel_uncore_write(uncore, guc_send_reg(guc, i), request[i]);
 
 	intel_uncore_posting_read(uncore, guc_send_reg(guc, i - 1));
 
@@ -410,30 +403,74 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
 	 */
 	ret = __intel_wait_for_register_fw(uncore,
 					   guc_send_reg(guc, 0),
-					   INTEL_GUC_MSG_TYPE_MASK,
-					   INTEL_GUC_MSG_TYPE_RESPONSE <<
-					   INTEL_GUC_MSG_TYPE_SHIFT,
-					   10, 10, &status);
-	/* If GuC explicitly returned an error, convert it to -EIO */
-	if (!ret && !INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(status))
-		ret = -EIO;
+					   GUC_HXG_MSG_0_ORIGIN,
+					   FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
+						      GUC_HXG_ORIGIN_GUC),
+					   10, 10, &header);
+	if (unlikely(ret)) {
+timeout:
+		drm_err(&i915->drm, "mmio request %#x: no reply %x\n",
+			request[0], header);
+		goto out;
+	}
 
-	if (ret) {
-		DRM_ERROR("MMIO: GuC action %#x failed with error %d %#x\n",
-			  action[0], ret, status);
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_BUSY) {
+#define done ({ header = intel_uncore_read(uncore, guc_send_reg(guc, 0)); \
+		FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) != GUC_HXG_ORIGIN_GUC || \
+		FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_NO_RESPONSE_BUSY; })
+
+		ret = wait_for(done, 1000);
+		if (unlikely(ret))
+			goto timeout;
+		if (unlikely(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) !=
+				       GUC_HXG_ORIGIN_GUC))
+			goto proto;
+#undef done
+	}
+
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_RETRY) {
+		u32 reason = FIELD_GET(GUC_HXG_RETRY_MSG_0_REASON, header);
+
+		drm_dbg(&i915->drm, "mmio request %#x: retrying, reason %u\n",
+			request[0], reason);
+		goto retry;
+	}
+
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_RESPONSE_FAILURE) {
+		u32 hint = FIELD_GET(GUC_HXG_FAILURE_MSG_0_HINT, header);
+		u32 error = FIELD_GET(GUC_HXG_FAILURE_MSG_0_ERROR, header);
+
+		drm_err(&i915->drm, "mmio request %#x: failure %x/%u\n",
+			request[0], error, hint);
+		ret = -ENXIO;
+		goto out;
+	}
+
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
+proto:
+		drm_err(&i915->drm, "mmio request %#x: unexpected reply %#x\n",
+			request[0], header);
+		ret = -EPROTO;
 		goto out;
 	}
 
 	if (response_buf) {
-		int count = min(response_buf_size, guc->send_regs.count - 1);
+		int count = min(response_buf_size, guc->send_regs.count);
 
-		for (i = 0; i < count; i++)
+		GEM_BUG_ON(!count);
+
+		response_buf[0] = header;
+
+		for (i = 1; i < count; i++)
 			response_buf[i] = intel_uncore_read(uncore,
-							    guc_send_reg(guc, i + 1));
-	}
+							    guc_send_reg(guc, i));
 
-	/* Use data from the GuC response as our return value */
-	ret = INTEL_GUC_MSG_TO_DATA(status);
+		/* Use number of copied dwords as our return value */
+		ret = count;
+	} else {
+		/* Use data from the GuC response as our return value */
+		ret = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header);
+	}
 
 out:
 	intel_uncore_forcewake_put(uncore, guc->send_regs.fw_domains);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
index 9abfbc6edbd6..b82145652d57 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
@@ -24,10 +24,6 @@
  *      +---------------------------------------+
  *      | guc_gt_system_info                    |
  *      +---------------------------------------+
- *      | guc_clients_info                      |
- *      +---------------------------------------+
- *      | guc_ct_pool_entry[size]               |
- *      +---------------------------------------+
  *      | padding                               |
  *      +---------------------------------------+ <== 4K aligned
  *      | private data                          |
@@ -39,8 +35,6 @@ struct __guc_ads_blob {
 	struct guc_ads ads;
 	struct guc_policies policies;
 	struct guc_gt_system_info system_info;
-	struct guc_clients_info clients_info;
-	struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
 } __packed;
 
 static u32 guc_ads_private_data_size(struct intel_guc *guc)
@@ -59,38 +53,15 @@ static u32 guc_ads_blob_size(struct intel_guc *guc)
 	       guc_ads_private_data_size(guc);
 }
 
-static void guc_policy_init(struct guc_policy *policy)
-{
-	policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
-	policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
-	policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
-	policy->policy_flags = 0;
-}
-
 static void guc_policies_init(struct guc_policies *policies)
 {
-	struct guc_policy *policy;
-	u32 p, i;
-
-	policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
-	policies->max_num_work_items = POLICY_MAX_NUM_WI;
-
-	for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
-		for (i = 0; i < GUC_MAX_ENGINE_CLASSES; i++) {
-			policy = &policies->policy[p][i];
-
-			guc_policy_init(policy);
-		}
-	}
-
+	policies->dpc_promote_time = GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
+	policies->max_num_work_items = GLOBAL_POLICY_MAX_NUM_WI;
+	/* Disable automatic resets as not yet supported. */
+	policies->global_flags = GLOBAL_POLICY_DISABLE_ENGINE_RESET;
 	policies->is_valid = 1;
 }
 
-static void guc_ct_pool_entries_init(struct guc_ct_pool_entry *pool, u32 num)
-{
-	memset(pool, 0, num * sizeof(*pool));
-}
-
 static void guc_mapping_table_init(struct intel_gt *gt,
 				   struct guc_gt_system_info *system_info)
 {
@@ -178,17 +149,9 @@ static void __guc_ads_init(struct intel_guc *guc)
 
 	base = intel_guc_ggtt_offset(guc, guc->ads_vma);
 
-	/* Clients info  */
-	guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
-
-	blob->clients_info.clients_num = 1;
-	blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
-	blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
-
 	/* ADS */
 	blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
 	blob->ads.gt_system_info = base + ptr_offset(blob, system_info);
-	blob->ads.clients_info = base + ptr_offset(blob, clients_info);
 
 	/* Private Data */
 	blob->ads.private_data = base + guc_ads_private_data_offset(guc);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
index 8f7b148fef58..43409044528e 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -103,61 +103,66 @@ void intel_guc_ct_init_early(struct intel_guc_ct *ct)
 static inline const char *guc_ct_buffer_type_to_str(u32 type)
 {
 	switch (type) {
-	case INTEL_GUC_CT_BUFFER_TYPE_SEND:
+	case GUC_CTB_TYPE_HOST2GUC:
 		return "SEND";
-	case INTEL_GUC_CT_BUFFER_TYPE_RECV:
+	case GUC_CTB_TYPE_GUC2HOST:
 		return "RECV";
 	default:
 		return "<invalid>";
 	}
 }
 
-static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc,
-				    u32 cmds_addr, u32 size)
+static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc)
 {
 	memset(desc, 0, sizeof(*desc));
-	desc->addr = cmds_addr;
-	desc->size = size;
-	desc->owner = CTB_OWNER_HOST;
 }
 
-static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb, u32 cmds_addr)
+static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb)
 {
-	guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size);
+	ctb->broken = false;
+	guc_ct_buffer_desc_init(ctb->desc);
 }
 
 static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb,
 			       struct guc_ct_buffer_desc *desc,
-			       u32 *cmds, u32 size)
+			       u32 *cmds, u32 size_in_bytes)
 {
-	GEM_BUG_ON(size % 4);
+	GEM_BUG_ON(size_in_bytes % 4);
 
 	ctb->desc = desc;
 	ctb->cmds = cmds;
-	ctb->size = size;
+	ctb->size = size_in_bytes / 4;
 
-	guc_ct_buffer_reset(ctb, 0);
+	guc_ct_buffer_reset(ctb);
 }
 
-static int guc_action_register_ct_buffer(struct intel_guc *guc,
-					 u32 desc_addr,
-					 u32 type)
+static int guc_action_register_ct_buffer(struct intel_guc *guc, u32 type,
+					 u32 desc_addr, u32 buff_addr, u32 size)
 {
-	u32 action[] = {
-		INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER,
-		desc_addr,
-		sizeof(struct guc_ct_buffer_desc),
-		type
+	u32 request[HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN] = {
+		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
+		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_REGISTER_CTB),
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE, size / SZ_4K - 1) |
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE, type),
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR, desc_addr),
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR, buff_addr),
 	};
 
-	/* Can't use generic send(), CT registration must go over MMIO */
-	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
+	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
+	GEM_BUG_ON(size % SZ_4K);
+
+	/* CT registration must go over MMIO */
+	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
 }
 
-static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
+static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
+			      u32 desc_addr, u32 buff_addr, u32 size)
 {
-	int err = guc_action_register_ct_buffer(ct_to_guc(ct), desc_addr, type);
+	int err;
 
+	err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
+					    desc_addr, buff_addr, size);
 	if (unlikely(err))
 		CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n",
 			 guc_ct_buffer_type_to_str(type), err);
@@ -166,14 +171,17 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
 
 static int guc_action_deregister_ct_buffer(struct intel_guc *guc, u32 type)
 {
-	u32 action[] = {
-		INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER,
-		CTB_OWNER_HOST,
-		type
+	u32 request[HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN] = {
+		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
+		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_DEREGISTER_CTB),
+		FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type),
 	};
 
-	/* Can't use generic send(), CT deregistration must go over MMIO */
-	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
+	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
+
+	/* CT deregistration must go over MMIO */
+	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
 }
 
 static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type)
@@ -261,7 +269,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct)
 int intel_guc_ct_enable(struct intel_guc_ct *ct)
 {
 	struct intel_guc *guc = ct_to_guc(ct);
-	u32 base, cmds;
+	u32 base, desc, cmds;
 	void *blob;
 	int err;
 
@@ -277,23 +285,26 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
 	GEM_BUG_ON(blob != ct->ctbs.send.desc);
 
 	/* (re)initialize descriptors */
-	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
-	guc_ct_buffer_reset(&ct->ctbs.send, cmds);
-
-	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
-	guc_ct_buffer_reset(&ct->ctbs.recv, cmds);
+	guc_ct_buffer_reset(&ct->ctbs.send);
+	guc_ct_buffer_reset(&ct->ctbs.recv);
 
 	/*
 	 * Register both CT buffers starting with RECV buffer.
 	 * Descriptors are in first half of the blob.
 	 */
-	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.recv.desc, blob),
-				 INTEL_GUC_CT_BUFFER_TYPE_RECV);
+	desc = base + ptrdiff(ct->ctbs.recv.desc, blob);
+	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
+	err = ct_register_buffer(ct, GUC_CTB_TYPE_GUC2HOST,
+				 desc, cmds, ct->ctbs.recv.size * 4);
+
 	if (unlikely(err))
 		goto err_out;
 
-	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.send.desc, blob),
-				 INTEL_GUC_CT_BUFFER_TYPE_SEND);
+	desc = base + ptrdiff(ct->ctbs.send.desc, blob);
+	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
+	err = ct_register_buffer(ct, GUC_CTB_TYPE_HOST2GUC,
+				 desc, cmds, ct->ctbs.send.size * 4);
+
 	if (unlikely(err))
 		goto err_deregister;
 
@@ -302,7 +313,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
 	return 0;
 
 err_deregister:
-	ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
+	ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
 err_out:
 	CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err));
 	return err;
@@ -321,8 +332,8 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
 	ct->enabled = false;
 
 	if (intel_guc_is_fw_running(guc)) {
-		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_SEND);
-		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
+		ct_deregister_buffer(ct, GUC_CTB_TYPE_HOST2GUC);
+		ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
 	}
 }
 
@@ -354,24 +365,6 @@ static void write_barrier(struct intel_guc_ct *ct)
 	}
 }
 
-/**
- * DOC: CTB Host to GuC request
- *
- * Format of the CTB Host to GuC request message is as follows::
- *
- *      +------------+---------+---------+---------+---------+
- *      |   msg[0]   |   [1]   |   [2]   |   ...   |  [n-1]  |
- *      +------------+---------+---------+---------+---------+
- *      |   MESSAGE  |       MESSAGE PAYLOAD                 |
- *      +   HEADER   +---------+---------+---------+---------+
- *      |            |    0    |    1    |   ...   |    n    |
- *      +============+=========+=========+=========+=========+
- *      |  len >= 1  |  FENCE  |     request specific data   |
- *      +------+-----+---------+---------+---------+---------+
- *
- *                   ^-----------------len-------------------^
- */
-
 static int ct_write(struct intel_guc_ct *ct,
 		    const u32 *action,
 		    u32 len /* in dwords */,
@@ -384,20 +377,22 @@ static int ct_write(struct intel_guc_ct *ct,
 	u32 size = ctb->size;
 	u32 used;
 	u32 header;
+	u32 hxg;
 	u32 *cmds = ctb->cmds;
 	unsigned int i;
 
-	if (unlikely(desc->is_in_error))
+	if (unlikely(ctb->broken))
 		return -EPIPE;
 
-	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
-		     (tail | head) >= size))
+	if (unlikely(desc->status))
 		goto corrupted;
 
-	/* later calculations will be done in dwords */
-	head /= 4;
-	tail /= 4;
-	size /= 4;
+	if (unlikely((tail | head) >= size)) {
+		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
+			 head, tail, size);
+		desc->status |= GUC_CTB_STATUS_OVERFLOW;
+		goto corrupted;
+	}
 
 	/*
 	 * tail == head condition indicates empty. GuC FW does not support
@@ -413,22 +408,25 @@ static int ct_write(struct intel_guc_ct *ct,
 		return -ENOSPC;
 
 	/*
-	 * Write the message. The format is the following:
-	 * DW0: header (including action code)
-	 * DW1: fence
-	 * DW2+: action data
+	 * dw0: CT header (including fence)
+	 * dw1: HXG header (including action code)
+	 * dw2+: action data
 	 */
-	header = (len << GUC_CT_MSG_LEN_SHIFT) |
-		 GUC_CT_MSG_SEND_STATUS |
-		 (action[0] << GUC_CT_MSG_ACTION_SHIFT);
+	header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) |
+		 FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) |
+		 FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence);
 
-	CT_DEBUG(ct, "writing %*ph %*ph %*ph\n",
-		 4, &header, 4, &fence, 4 * (len - 1), &action[1]);
+	hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+	      FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION |
+			 GUC_HXG_REQUEST_MSG_0_DATA0, action[0]);
+
+	CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n",
+		 tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]);
 
 	cmds[tail] = header;
 	tail = (tail + 1) % size;
 
-	cmds[tail] = fence;
+	cmds[tail] = hxg;
 	tail = (tail + 1) % size;
 
 	for (i = 1; i < len; i++) {
@@ -443,14 +441,15 @@ static int ct_write(struct intel_guc_ct *ct,
 	 */
 	write_barrier(ct);
 
-	/* now update desc tail (back in bytes) */
-	desc->tail = tail * 4;
+	/* now update descriptor */
+	WRITE_ONCE(desc->tail, tail);
+
 	return 0;
 
 corrupted:
-	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
-		 desc->addr, desc->head, desc->tail, desc->size);
-	desc->is_in_error = 1;
+	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
+		 desc->head, desc->tail, desc->status);
+	ctb->broken = true;
 	return -EPIPE;
 }
 
@@ -477,7 +476,9 @@ static int wait_for_ct_request_update(struct ct_request *req, u32 *status)
 	 * up to that length of time, then switch to a slower sleep-wait loop.
 	 * No GuC command should ever take longer than 10ms.
 	 */
-#define done INTEL_GUC_MSG_IS_RESPONSE(READ_ONCE(req->status))
+#define done \
+	(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, READ_ONCE(req->status)) == \
+	 GUC_HXG_ORIGIN_GUC)
 	err = wait_for_us(done, 10);
 	if (err)
 		err = wait_for(done, 10);
@@ -532,21 +533,21 @@ static int ct_send(struct intel_guc_ct *ct,
 	if (unlikely(err))
 		goto unlink;
 
-	if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) {
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
 		err = -EIO;
 		goto unlink;
 	}
 
 	if (response_buf) {
 		/* There shall be no data in the status */
-		WARN_ON(INTEL_GUC_MSG_TO_DATA(request.status));
+		WARN_ON(FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, request.status));
 		/* Return actual response len */
 		err = request.response_len;
 	} else {
 		/* There shall be no response payload */
 		WARN_ON(request.response_len);
 		/* Return data decoded from the status dword */
-		err = INTEL_GUC_MSG_TO_DATA(*status);
+		err = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, *status);
 	}
 
 unlink:
@@ -583,21 +584,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
 	return ret;
 }
 
-static inline unsigned int ct_header_get_len(u32 header)
-{
-	return (header >> GUC_CT_MSG_LEN_SHIFT) & GUC_CT_MSG_LEN_MASK;
-}
-
-static inline unsigned int ct_header_get_action(u32 header)
-{
-	return (header >> GUC_CT_MSG_ACTION_SHIFT) & GUC_CT_MSG_ACTION_MASK;
-}
-
-static inline bool ct_header_is_response(u32 header)
-{
-	return !!(header & GUC_CT_MSG_IS_RESPONSE);
-}
-
 static struct ct_incoming_msg *ct_alloc_msg(u32 num_dwords)
 {
 	struct ct_incoming_msg *msg;
@@ -630,17 +616,18 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	unsigned int i;
 	u32 header;
 
-	if (unlikely(desc->is_in_error))
+	if (unlikely(ctb->broken))
 		return -EPIPE;
 
-	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
-		     (tail | head) >= size))
+	if (unlikely(desc->status))
 		goto corrupted;
 
-	/* later calculations will be done in dwords */
-	head /= 4;
-	tail /= 4;
-	size /= 4;
+	if (unlikely((tail | head) >= size)) {
+		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
+			 head, tail, size);
+		desc->status |= GUC_CTB_STATUS_OVERFLOW;
+		goto corrupted;
+	}
 
 	/* tail == head condition indicates empty */
 	available = tail - head;
@@ -659,7 +646,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	head = (head + 1) % size;
 
 	/* message len with header */
-	len = ct_header_get_len(header) + 1;
+	len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, header) + GUC_CTB_MSG_MIN_LEN;
 	if (unlikely(len > (u32)available)) {
 		CT_ERROR(ct, "Incomplete message %*ph %*ph %*ph\n",
 			 4, &header,
@@ -667,6 +654,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 			      size - head : available - 1), &cmds[head],
 			 4 * (head + available - 1 > size ?
 			      available - 1 - size + head : 0), &cmds[0]);
+		desc->status |= GUC_CTB_STATUS_UNDERFLOW;
 		goto corrupted;
 	}
 
@@ -689,65 +677,36 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	}
 	CT_DEBUG(ct, "received %*ph\n", 4 * len, (*msg)->msg);
 
-	desc->head = head * 4;
+	/* now update descriptor */
+	WRITE_ONCE(desc->head, head);
+
 	return available - len;
 
 corrupted:
-	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
-		 desc->addr, desc->head, desc->tail, desc->size);
-	desc->is_in_error = 1;
+	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
+		 desc->head, desc->tail, desc->status);
+	ctb->broken = true;
 	return -EPIPE;
 }
 
-/**
- * DOC: CTB GuC to Host response
- *
- * Format of the CTB GuC to Host response message is as follows::
- *
- *      +------------+---------+---------+---------+---------+---------+
- *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
- *      +------------+---------+---------+---------+---------+---------+
- *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
- *      +   HEADER   +---------+---------+---------+---------+---------+
- *      |            |    0    |    1    |    2    |   ...   |    n    |
- *      +============+=========+=========+=========+=========+=========+
- *      |  len >= 2  |  FENCE  |  STATUS |   response specific data    |
- *      +------+-----+---------+---------+---------+---------+---------+
- *
- *                   ^-----------------------len-----------------------^
- */
-
 static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *response)
 {
-	u32 header = response->msg[0];
-	u32 len = ct_header_get_len(header);
-	u32 fence;
-	u32 status;
-	u32 datalen;
+	u32 len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, response->msg[0]);
+	u32 fence = FIELD_GET(GUC_CTB_MSG_0_FENCE, response->msg[0]);
+	const u32 *hxg = &response->msg[GUC_CTB_MSG_MIN_LEN];
+	const u32 *data = &hxg[GUC_HXG_MSG_MIN_LEN];
+	u32 datalen = len - GUC_HXG_MSG_MIN_LEN;
 	struct ct_request *req;
 	unsigned long flags;
 	bool found = false;
 	int err = 0;
 
-	GEM_BUG_ON(!ct_header_is_response(header));
-
-	/* Response payload shall at least include fence and status */
-	if (unlikely(len < 2)) {
-		CT_ERROR(ct, "Corrupted response (len %u)\n", len);
-		return -EPROTO;
-	}
-
-	fence = response->msg[1];
-	status = response->msg[2];
-	datalen = len - 2;
-
-	/* Format of the status follows RESPONSE message */
-	if (unlikely(!INTEL_GUC_MSG_IS_RESPONSE(status))) {
-		CT_ERROR(ct, "Corrupted response (status %#x)\n", status);
-		return -EPROTO;
-	}
+	GEM_BUG_ON(len < GUC_HXG_MSG_MIN_LEN);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]) != GUC_HXG_ORIGIN_GUC);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_SUCCESS &&
+		   FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_FAILURE);
 
-	CT_DEBUG(ct, "response fence %u status %#x\n", fence, status);
+	CT_DEBUG(ct, "response fence %u status %#x\n", fence, hxg[0]);
 
 	spin_lock_irqsave(&ct->requests.lock, flags);
 	list_for_each_entry(req, &ct->requests.pending, link) {
@@ -763,9 +722,9 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
 			err = -EMSGSIZE;
 		}
 		if (datalen)
-			memcpy(req->response_buf, response->msg + 3, 4 * datalen);
+			memcpy(req->response_buf, data, 4 * datalen);
 		req->response_len = datalen;
-		WRITE_ONCE(req->status, status);
+		WRITE_ONCE(req->status, hxg[0]);
 		found = true;
 		break;
 	}
@@ -786,14 +745,16 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
 static int ct_process_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
 {
 	struct intel_guc *guc = ct_to_guc(ct);
-	u32 header, action, len;
+	const u32 *hxg;
 	const u32 *payload;
+	u32 hxg_len, action, len;
 	int ret;
 
-	header = request->msg[0];
-	payload = &request->msg[1];
-	action = ct_header_get_action(header);
-	len = ct_header_get_len(header);
+	hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
+	hxg_len = request->size - GUC_CTB_MSG_MIN_LEN;
+	payload = &hxg[GUC_HXG_MSG_MIN_LEN];
+	action = FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, hxg[0]);
+	len = hxg_len - GUC_HXG_MSG_MIN_LEN;
 
 	CT_DEBUG(ct, "request %x %*ph\n", action, 4 * len, payload);
 
@@ -855,29 +816,12 @@ static void ct_incoming_request_worker_func(struct work_struct *w)
 		queue_work(system_unbound_wq, &ct->requests.worker);
 }
 
-/**
- * DOC: CTB GuC to Host request
- *
- * Format of the CTB GuC to Host request message is as follows::
- *
- *      +------------+---------+---------+---------+---------+---------+
- *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
- *      +------------+---------+---------+---------+---------+---------+
- *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
- *      +   HEADER   +---------+---------+---------+---------+---------+
- *      |            |    0    |    1    |    2    |   ...   |    n    |
- *      +============+=========+=========+=========+=========+=========+
- *      |     len    |            request specific data                |
- *      +------+-----+---------+---------+---------+---------+---------+
- *
- *                   ^-----------------------len-----------------------^
- */
-
-static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
+static int ct_handle_event(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
 {
+	const u32 *hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
 	unsigned long flags;
 
-	GEM_BUG_ON(ct_header_is_response(request->msg[0]));
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_EVENT);
 
 	spin_lock_irqsave(&ct->requests.lock, flags);
 	list_add_tail(&request->link, &ct->requests.incoming);
@@ -887,15 +831,53 @@ static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *re
 	return 0;
 }
 
-static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
+static int ct_handle_hxg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
 {
-	u32 header = msg->msg[0];
+	u32 origin, type;
+	u32 *hxg;
 	int err;
 
-	if (ct_header_is_response(header))
+	if (unlikely(msg->size < GUC_CTB_HXG_MSG_MIN_LEN))
+		return -EBADMSG;
+
+	hxg = &msg->msg[GUC_CTB_MSG_MIN_LEN];
+
+	origin = FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]);
+	if (unlikely(origin != GUC_HXG_ORIGIN_GUC)) {
+		err = -EPROTO;
+		goto failed;
+	}
+
+	type = FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]);
+	switch (type) {
+	case GUC_HXG_TYPE_EVENT:
+		err = ct_handle_event(ct, msg);
+		break;
+	case GUC_HXG_TYPE_RESPONSE_SUCCESS:
+	case GUC_HXG_TYPE_RESPONSE_FAILURE:
 		err = ct_handle_response(ct, msg);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+	}
+
+	if (unlikely(err)) {
+failed:
+		CT_ERROR(ct, "Failed to handle HXG message (%pe) %*ph\n",
+			 ERR_PTR(err), 4 * GUC_HXG_MSG_MIN_LEN, hxg);
+	}
+	return err;
+}
+
+static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
+{
+	u32 format = FIELD_GET(GUC_CTB_MSG_0_FORMAT, msg->msg[0]);
+	int err;
+
+	if (format == GUC_CTB_FORMAT_HXG)
+		err = ct_handle_hxg(ct, msg);
 	else
-		err = ct_handle_request(ct, msg);
+		err = -EOPNOTSUPP;
 
 	if (unlikely(err)) {
 		CT_ERROR(ct, "Failed to process CT message (%pe) %*ph\n",
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
index cb222f202301..1ae2dde6db93 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
@@ -31,13 +31,15 @@ struct intel_guc;
  * @lock: protects access to the commands buffer and buffer descriptor
  * @desc: pointer to the buffer descriptor
  * @cmds: pointer to the commands buffer
- * @size: size of the commands buffer
+ * @size: size of the commands buffer in dwords
+ * @broken: flag to indicate if descriptor data is broken
  */
 struct intel_guc_ct_buffer {
 	spinlock_t lock;
 	struct guc_ct_buffer_desc *desc;
 	u32 *cmds;
 	u32 size;
+	bool broken;
 };
 
 
@@ -59,7 +61,7 @@ struct intel_guc_ct {
 	struct tasklet_struct receive_tasklet;
 
 	struct {
-		u32 last_fence; /* last fence used to send request */
+		u16 last_fence; /* last fence used to send request */
 
 		spinlock_t lock; /* protects pending requests list */
 		struct list_head pending; /* requests waiting for response */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
index e9a9d85e2aa3..617ec601648d 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
@@ -81,10 +81,8 @@
 #define   GUC_LOG_ALLOC_IN_MEGABYTE	(1 << 3)
 #define   GUC_LOG_CRASH_SHIFT		4
 #define   GUC_LOG_CRASH_MASK		(0x3 << GUC_LOG_CRASH_SHIFT)
-#define   GUC_LOG_DPC_SHIFT		6
-#define   GUC_LOG_DPC_MASK	        (0x7 << GUC_LOG_DPC_SHIFT)
-#define   GUC_LOG_ISR_SHIFT		9
-#define   GUC_LOG_ISR_MASK	        (0x7 << GUC_LOG_ISR_SHIFT)
+#define   GUC_LOG_DEBUG_SHIFT		6
+#define   GUC_LOG_DEBUG_MASK	        (0xF << GUC_LOG_DEBUG_SHIFT)
 #define   GUC_LOG_BUF_ADDR_SHIFT	12
 
 #define GUC_CTL_WA			1
@@ -247,32 +245,14 @@ struct guc_stage_desc {
 
 /* Scheduling policy settings */
 
-/* Reset engine upon preempt failure */
-#define POLICY_RESET_ENGINE		(1<<0)
-/* Preempt to idle on quantum expiry */
-#define POLICY_PREEMPT_TO_IDLE		(1<<1)
-
-#define POLICY_MAX_NUM_WI 15
-#define POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
-#define POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
-#define POLICY_DEFAULT_PREEMPTION_TIME_US 500000
-#define POLICY_DEFAULT_FAULT_TIME_US 250000
-
-struct guc_policy {
-	/* Time for one workload to execute. (in micro seconds) */
-	u32 execution_quantum;
-	/* Time to wait for a preemption request to completed before issuing a
-	 * reset. (in micro seconds). */
-	u32 preemption_time;
-	/* How much time to allow to run after the first fault is observed.
-	 * Then preempt afterwards. (in micro seconds) */
-	u32 fault_time;
-	u32 policy_flags;
-	u32 reserved[8];
-} __packed;
+#define GLOBAL_POLICY_MAX_NUM_WI 15
+
+/* Don't reset an engine upon preemption failure */
+#define GLOBAL_POLICY_DISABLE_ENGINE_RESET				BIT(0)
+
+#define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
 
 struct guc_policies {
-	struct guc_policy policy[GUC_CLIENT_PRIORITY_NUM][GUC_MAX_ENGINE_CLASSES];
 	u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
 	/* In micro seconds. How much time to allow before DPC processing is
 	 * called back via interrupt (to prevent DPC queue drain starving).
@@ -286,6 +266,7 @@ struct guc_policies {
 	 * idle. */
 	u32 max_num_work_items;
 
+	u32 global_flags;
 	u32 reserved[4];
 } __packed;
 
@@ -311,29 +292,13 @@ struct guc_gt_system_info {
 	u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
 } __packed;
 
-/* Clients info */
-struct guc_ct_pool_entry {
-	struct guc_ct_buffer_desc desc;
-	u32 reserved[7];
-} __packed;
-
-#define GUC_CT_POOL_SIZE	2
-
-struct guc_clients_info {
-	u32 clients_num;
-	u32 reserved0[13];
-	u32 ct_pool_addr;
-	u32 ct_pool_count;
-	u32 reserved[4];
-} __packed;
-
 /* GuC Additional Data Struct */
 struct guc_ads {
 	struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
 	u32 reserved0;
 	u32 scheduler_policies;
 	u32 gt_system_info;
-	u32 clients_info;
+	u32 reserved1;
 	u32 control_data;
 	u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
 	u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
@@ -344,8 +309,7 @@ struct guc_ads {
 /* GuC logging structures */
 
 enum guc_log_buffer_type {
-	GUC_ISR_LOG_BUFFER,
-	GUC_DPC_LOG_BUFFER,
+	GUC_DEBUG_LOG_BUFFER,
 	GUC_CRASH_DUMP_LOG_BUFFER,
 	GUC_MAX_LOG_BUFFER
 };
@@ -414,23 +378,6 @@ struct guc_shared_ctx_data {
 	struct guc_ctx_report preempt_ctx_report[GUC_MAX_ENGINES_NUM];
 } __packed;
 
-#define __INTEL_GUC_MSG_GET(T, m) \
-	(((m) & INTEL_GUC_MSG_ ## T ## _MASK) >> INTEL_GUC_MSG_ ## T ## _SHIFT)
-#define INTEL_GUC_MSG_TO_TYPE(m)	__INTEL_GUC_MSG_GET(TYPE, m)
-#define INTEL_GUC_MSG_TO_DATA(m)	__INTEL_GUC_MSG_GET(DATA, m)
-#define INTEL_GUC_MSG_TO_CODE(m)	__INTEL_GUC_MSG_GET(CODE, m)
-
-#define __INTEL_GUC_MSG_TYPE_IS(T, m) \
-	(INTEL_GUC_MSG_TO_TYPE(m) == INTEL_GUC_MSG_TYPE_ ## T)
-#define INTEL_GUC_MSG_IS_REQUEST(m)	__INTEL_GUC_MSG_TYPE_IS(REQUEST, m)
-#define INTEL_GUC_MSG_IS_RESPONSE(m)	__INTEL_GUC_MSG_TYPE_IS(RESPONSE, m)
-
-#define INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(m) \
-	 (typecheck(u32, (m)) && \
-	  ((m) & (INTEL_GUC_MSG_TYPE_MASK | INTEL_GUC_MSG_CODE_MASK)) == \
-	  ((INTEL_GUC_MSG_TYPE_RESPONSE << INTEL_GUC_MSG_TYPE_SHIFT) | \
-	   (INTEL_GUC_RESPONSE_STATUS_SUCCESS << INTEL_GUC_MSG_CODE_SHIFT)))
-
 /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
 enum intel_guc_recv_message {
 	INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
index c36d5eb5bbb9..ac0931f0374b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
@@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct intel_guc_log *log,
 static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type)
 {
 	switch (type) {
-	case GUC_ISR_LOG_BUFFER:
-		return ISR_BUFFER_SIZE;
-	case GUC_DPC_LOG_BUFFER:
-		return DPC_BUFFER_SIZE;
+	case GUC_DEBUG_LOG_BUFFER:
+		return DEBUG_BUFFER_SIZE;
 	case GUC_CRASH_DUMP_LOG_BUFFER:
 		return CRASH_BUFFER_SIZE;
 	default:
@@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
 	src_data += PAGE_SIZE;
 	dst_data += PAGE_SIZE;
 
-	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
+	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
 		/*
 		 * Make a copy of the state structure, inside GuC log buffer
 		 * (which is uncached mapped), on the stack to avoid reading
@@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
 	 *  +===============================+ 00B
 	 *  |    Crash dump state header    |
 	 *  +-------------------------------+ 32B
-	 *  |       DPC state header        |
+	 *  |      Debug state header       |
 	 *  +-------------------------------+ 64B
-	 *  |       ISR state header        |
-	 *  +-------------------------------+ 96B
 	 *  |                               |
 	 *  +===============================+ PAGE_SIZE (4KB)
 	 *  |        Crash Dump logs        |
 	 *  +===============================+ + CRASH_SIZE
-	 *  |           DPC logs            |
-	 *  +===============================+ + DPC_SIZE
-	 *  |           ISR logs            |
-	 *  +===============================+ + ISR_SIZE
+	 *  |          Debug logs           |
+	 *  +===============================+ + DEBUG_SIZE
 	 */
-	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
-			ISR_BUFFER_SIZE;
+	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
 
 	vma = intel_guc_allocate_vma(guc, guc_log_size);
 	if (IS_ERR(vma)) {
@@ -675,10 +668,8 @@ static const char *
 stringify_guc_log_type(enum guc_log_buffer_type type)
 {
 	switch (type) {
-	case GUC_ISR_LOG_BUFFER:
-		return "ISR";
-	case GUC_DPC_LOG_BUFFER:
-		return "DPC";
+	case GUC_DEBUG_LOG_BUFFER:
+		return "DEBUG";
 	case GUC_CRASH_DUMP_LOG_BUFFER:
 		return "CRASH";
 	default:
@@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p)
 
 	drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
 
-	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
+	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
 		drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
 			   stringify_guc_log_type(type),
 			   log->stats[type].flush,
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
index 11fccd0b2294..ac1ee1d5ce10 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
@@ -17,12 +17,10 @@ struct intel_guc;
 
 #ifdef CONFIG_DRM_I915_DEBUG_GUC
 #define CRASH_BUFFER_SIZE	SZ_2M
-#define DPC_BUFFER_SIZE		SZ_8M
-#define ISR_BUFFER_SIZE		SZ_8M
+#define DEBUG_BUFFER_SIZE	SZ_16M
 #else
 #define CRASH_BUFFER_SIZE	SZ_8K
-#define DPC_BUFFER_SIZE		SZ_32K
-#define ISR_BUFFER_SIZE		SZ_32K
+#define DEBUG_BUFFER_SIZE	SZ_64K
 #endif
 
 /*
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index df647c9a8d56..9f23e9de3237 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -48,19 +48,19 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
  * firmware as TGL.
  */
 #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \
-	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
-	fw_def(ROCKETLAKE,  0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
-	fw_def(TIGERLAKE,   0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
-	fw_def(JASPERLAKE,  0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
-	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
-	fw_def(ICELAKE,     0, guc_def(icl, 49, 0, 1), huc_def(icl,  9, 0, 0)) \
-	fw_def(COMETLAKE,   5, guc_def(cml, 49, 0, 1), huc_def(cml,  4, 0, 0)) \
-	fw_def(COMETLAKE,   0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
-	fw_def(COFFEELAKE,  0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
-	fw_def(GEMINILAKE,  0, guc_def(glk, 49, 0, 1), huc_def(glk,  4, 0, 0)) \
-	fw_def(KABYLAKE,    0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
-	fw_def(BROXTON,     0, guc_def(bxt, 49, 0, 1), huc_def(bxt,  2, 0, 0)) \
-	fw_def(SKYLAKE,     0, guc_def(skl, 49, 0, 1), huc_def(skl,  2, 0, 0))
+	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
+	fw_def(ROCKETLAKE,  0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
+	fw_def(TIGERLAKE,   0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
+	fw_def(JASPERLAKE,  0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
+	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
+	fw_def(ICELAKE,     0, guc_def(icl, 62, 0, 0), huc_def(icl,  9, 0, 0)) \
+	fw_def(COMETLAKE,   5, guc_def(cml, 62, 0, 0), huc_def(cml,  4, 0, 0)) \
+	fw_def(COMETLAKE,   0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
+	fw_def(COFFEELAKE,  0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
+	fw_def(GEMINILAKE,  0, guc_def(glk, 62, 0, 0), huc_def(glk,  4, 0, 0)) \
+	fw_def(KABYLAKE,    0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
+	fw_def(BROXTON,     0, guc_def(bxt, 62, 0, 0), huc_def(bxt,  2, 0, 0)) \
+	fw_def(SKYLAKE,     0, guc_def(skl, 62, 0, 0), huc_def(skl,  2, 0, 0))
 
 #define __MAKE_UC_FW_PATH(prefix_, name_, major_, minor_, patch_) \
 	"i915/" \
-- 
2.28.0


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [Intel-gfx] [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0
@ 2021-06-16  0:13   ` Matthew Brost
  0 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:13 UTC (permalink / raw)
  To: intel-gfx, dri-devel

From: Michal Wajdeczko <michal.wajdeczko@intel.com>

Most of the changes to the 62.0.0 firmware revolved around CTB
communication channel. Conform to the new (stable) CTB protocol.

v2:
 (Michal)
  Add values back to kernel DOC for actions
 (Docs)
  Add 'CT buffer' back in to fix warning

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
 .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
 .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
 drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
 drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
 11 files changed, 527 insertions(+), 421 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
index 90efef8a73e4..2d6198e63ebe 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
@@ -6,6 +6,113 @@
 #ifndef _ABI_GUC_ACTIONS_ABI_H
 #define _ABI_GUC_ACTIONS_ABI_H
 
+/**
+ * DOC: HOST2GUC_REGISTER_CTB
+ *
+ * This message is used as part of the `CTB based communication`_ setup.
+ *
+ * This message must be sent as `MMIO HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | DATA0 = MBZ                                                  |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_REGISTER_CTB` = 0x4505        |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 | 31:12 | RESERVED = MBZ                                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | **TYPE** - type for the `CT Buffer`_                         |
+ *  |   |       |                                                              |
+ *  |   |       |   - _`GUC_CTB_TYPE_HOST2GUC` = 0                             |
+ *  |   |       |   - _`GUC_CTB_TYPE_GUC2HOST` = 1                             |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | **SIZE** - size of the `CT Buffer`_ in 4K units minus 1      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 2 |  31:0 | **DESC_ADDR** - GGTT address of the `CTB Descriptor`_        |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 3 |  31:0 | **BUFF_ADDF** - GGTT address of the `CT Buffer`_             |
+ *  +---+-------+--------------------------------------------------------------+
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | DATA0 = MBZ                                                  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+#define GUC_ACTION_HOST2GUC_REGISTER_CTB		0x4505
+
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 3u)
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_0_MBZ		GUC_HXG_REQUEST_MSG_0_DATA0
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_MBZ		(0xfffff << 12)
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
+#define   GUC_CTB_TYPE_HOST2GUC				0u
+#define   GUC_CTB_TYPE_GUC2HOST				1u
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE	(0xff << 0)
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
+
+#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_LEN		GUC_HXG_RESPONSE_MSG_MIN_LEN
+#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
+
+/**
+ * DOC: HOST2GUC_DEREGISTER_CTB
+ *
+ * This message is used as part of the `CTB based communication`_ teardown.
+ *
+ * This message must be sent as `MMIO HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | DATA0 = MBZ                                                  |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_DEREGISTER_CTB` = 0x4506      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 | 31:12 | RESERVED = MBZ                                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | **TYPE** - type of the `CT Buffer`_                          |
+ *  |   |       |                                                              |
+ *  |   |       | see `GUC_ACTION_HOST2GUC_REGISTER_CTB`_                      |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | RESERVED = MBZ                                               |
+ *  +---+-------+--------------------------------------------------------------+
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | DATA0 = MBZ                                                  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+#define GUC_ACTION_HOST2GUC_DEREGISTER_CTB		0x4506
+
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 1u)
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_0_MBZ	GUC_HXG_REQUEST_MSG_0_DATA0
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ	(0xfffff << 12)
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
+#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ2	(0xff << 0)
+
+#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_LEN	GUC_HXG_RESPONSE_MSG_MIN_LEN
+#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
+
+/* legacy definitions */
+
 enum intel_guc_action {
 	INTEL_GUC_ACTION_DEFAULT = 0x0,
 	INTEL_GUC_ACTION_REQUEST_PREEMPTION = 0x2,
diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
index d38935f47ecf..29fc93a8b5be 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
@@ -7,6 +7,110 @@
 #define _ABI_GUC_COMMUNICATION_CTB_ABI_H
 
 #include <linux/types.h>
+#include <linux/build_bug.h>
+
+#include "guc_messages_abi.h"
+
+/**
+ * DOC: CT Buffer
+ *
+ * Circular buffer used to send / receive CTBs (H2G or G2H)
+ */
+
+/**
+ * DOC: CTB Descriptor
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |  31:0 | **HEAD** - offset (in dwords) to the last dword that was     |
+ *  |   |       | read from the `CT Buffer`_.                                  |
+ *  |   |       | It can only be updated by the receiver.                      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 | **TAIL** - offset (in dwords) to the last dword that was     |
+ *  |   |       | written to the `CT Buffer`_.                                 |
+ *  |   |       | It can only be updated by the sender.                        |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 2 |  31:0 | **STATUS** - status of the CTB                               |
+ *  |   |       |                                                              |
+ *  |   |       |   - _`GUC_CTB_STATUS_NO_ERROR` = 0 (normal operation)        |
+ *  |   |       |   - _`GUC_CTB_STATUS_OVERFLOW` = 1 (head/tail too large)     |
+ *  |   |       |   - _`GUC_CTB_STATUS_UNDERFLOW` = 2 (truncated message)      |
+ *  |   |       |   - _`GUC_CTB_STATUS_MISMATCH` = 4 (head/tail modified)      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  |...|       | RESERVED = MBZ                                               |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 15|  31:0 | RESERVED = MBZ                                               |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+struct guc_ct_buffer_desc {
+	u32 head;
+	u32 tail;
+	u32 status;
+#define GUC_CTB_STATUS_NO_ERROR				0
+#define GUC_CTB_STATUS_OVERFLOW				(1 << 0)
+#define GUC_CTB_STATUS_UNDERFLOW			(1 << 1)
+#define GUC_CTB_STATUS_MISMATCH				(1 << 2)
+	u32 reserved[13];
+} __packed;
+static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
+
+/**
+ * DOC: CTB Message
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 | 31:16 | **FENCE** - message identifier                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 15:12 | **FORMAT** - format of the CTB message                       |
+ *  |   |       |  - _`GUC_CTB_FORMAT_HXG` = 0 - see `CTB HXG Message`_        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | **RESERVED**                                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | **NUM_DWORDS** - length of the CTB message (w/o header)      |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 | optional (depends on FORMAT)                                 |
+ *  +---+-------+                                                              |
+ *  |...|       |                                                              |
+ *  +---+-------+                                                              |
+ *  | n |  31:0 |                                                              |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_CTB_MSG_MIN_LEN			1u
+#define GUC_CTB_MSG_MAX_LEN			256u
+#define GUC_CTB_MSG_0_FENCE			(0xffff << 16)
+#define GUC_CTB_MSG_0_FORMAT			(0xf << 12)
+#define   GUC_CTB_FORMAT_HXG			0u
+#define GUC_CTB_MSG_0_RESERVED			(0xf << 8)
+#define GUC_CTB_MSG_0_NUM_DWORDS		(0xff << 0)
+
+/**
+ * DOC: CTB HXG Message
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 | 31:16 | FENCE                                                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 15:12 | FORMAT = GUC_CTB_FORMAT_HXG_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  11:8 | RESERVED = MBZ                                               |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |   7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG message  |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+  |                                                        |  |
+ *  |...|       |  |  Embedded `HXG Message`_                               |  |
+ *  +---+-------+  |                                                        |  |
+ *  | n |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+
+#define GUC_CTB_HXG_MSG_MIN_LEN		(GUC_CTB_MSG_MIN_LEN + GUC_HXG_MSG_MIN_LEN)
+#define GUC_CTB_HXG_MSG_MAX_LEN		GUC_CTB_MSG_MAX_LEN
 
 /**
  * DOC: CTB based communication
@@ -60,28 +164,6 @@
  * - **flags**, holds various bits to control message handling
  */
 
-/*
- * Describes single command transport buffer.
- * Used by both guc-master and clients.
- */
-struct guc_ct_buffer_desc {
-	u32 addr;		/* gfx address */
-	u64 host_private;	/* host private data */
-	u32 size;		/* size in bytes */
-	u32 head;		/* offset updated by GuC*/
-	u32 tail;		/* offset updated by owner */
-	u32 is_in_error;	/* error indicator */
-	u32 reserved1;
-	u32 reserved2;
-	u32 owner;		/* id of the channel owner */
-	u32 owner_sub_id;	/* owner-defined field for extra tracking */
-	u32 reserved[5];
-} __packed;
-
-/* Type of command transport buffer */
-#define INTEL_GUC_CT_BUFFER_TYPE_SEND	0x0u
-#define INTEL_GUC_CT_BUFFER_TYPE_RECV	0x1u
-
 /*
  * Definition of the command transport message header (DW0)
  *
diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
index be066a62e9e0..bbf1ddb77434 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
@@ -7,46 +7,43 @@
 #define _ABI_GUC_COMMUNICATION_MMIO_ABI_H
 
 /**
- * DOC: MMIO based communication
+ * DOC: GuC MMIO based communication
  *
- * The MMIO based communication between Host and GuC uses software scratch
- * registers, where first register holds data treated as message header,
- * and other registers are used to hold message payload.
+ * The MMIO based communication between Host and GuC relies on special
+ * hardware registers which format could be defined by the software
+ * (so called scratch registers).
  *
- * For Gen9+, GuC uses software scratch registers 0xC180-0xC1B8,
- * but no H2G command takes more than 8 parameters and the GuC FW
- * itself uses an 8-element array to store the H2G message.
+ * Each MMIO based message, both Host to GuC (H2G) and GuC to Host (G2H)
+ * messages, which maximum length depends on number of available scratch
+ * registers, is directly written into those scratch registers.
  *
- *      +-----------+---------+---------+---------+
- *      |  MMIO[0]  | MMIO[1] |   ...   | MMIO[n] |
- *      +-----------+---------+---------+---------+
- *      | header    |      optional payload       |
- *      +======+====+=========+=========+=========+
- *      | 31:28|type|         |         |         |
- *      +------+----+         |         |         |
- *      | 27:16|data|         |         |         |
- *      +------+----+         |         |         |
- *      |  15:0|code|         |         |         |
- *      +------+----+---------+---------+---------+
+ * For Gen9+, there are 16 software scratch registers 0xC180-0xC1B8,
+ * but no H2G command takes more than 4 parameters and the GuC firmware
+ * itself uses an 4-element array to store the H2G message.
  *
- * The message header consists of:
+ * For Gen11+, there are additional 4 registers 0x190240-0x19024C, which
+ * are, regardless on lower count, preferred over legacy ones.
  *
- * - **type**, indicates message type
- * - **code**, indicates message code, is specific for **type**
- * - **data**, indicates message data, optional, depends on **code**
- *
- * The following message **types** are supported:
- *
- * - **REQUEST**, indicates Host-to-GuC request, requested GuC action code
- *   must be priovided in **code** field. Optional action specific parameters
- *   can be provided in remaining payload registers or **data** field.
- *
- * - **RESPONSE**, indicates GuC-to-Host response from earlier GuC request,
- *   action response status will be provided in **code** field. Optional
- *   response data can be returned in remaining payload registers or **data**
- *   field.
+ * The MMIO based communication is mainly used during driver initialization
+ * phase to setup the `CTB based communication`_ that will be used afterwards.
  */
 
-#define GUC_MAX_MMIO_MSG_LEN		8
+#define GUC_MAX_MMIO_MSG_LEN		4
+
+/**
+ * DOC: MMIO HXG Message
+ *
+ * Format of the MMIO messages follows definitions of `HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+  |                                                        |  |
+ *  |...|       |  |  Embedded `HXG Message`_                               |  |
+ *  +---+-------+  |                                                        |  |
+ *  | n |  31:0 |  +--------------------------------------------------------+  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
 
 #endif /* _ABI_GUC_COMMUNICATION_MMIO_ABI_H */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index f147cb389a20..6661dcb02239 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
 
 	BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
 	BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
-	BUILD_BUG_ON(!DPC_BUFFER_SIZE);
-	BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
-	BUILD_BUG_ON(!ISR_BUFFER_SIZE);
-	BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
+	BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
+	BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
 
 	BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
 			(GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
-	BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
-			(GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
-	BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
-			(GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
+	BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
+			(GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
 
 	flags = GUC_LOG_VALID |
 		GUC_LOG_NOTIFY_ON_HALF_FULL |
 		FLAG |
 		((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
-		((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
-		((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
+		((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
 		(offset << GUC_LOG_BUF_ADDR_SHIFT);
 
 	#undef UNIT
@@ -376,29 +371,27 @@ void intel_guc_fini(struct intel_guc *guc)
 /*
  * This function implements the MMIO based host to GuC interface.
  */
-int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
+int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request, u32 len,
 			u32 *response_buf, u32 response_buf_size)
 {
+	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
 	struct intel_uncore *uncore = guc_to_gt(guc)->uncore;
-	u32 status;
+	u32 header;
 	int i;
 	int ret;
 
 	GEM_BUG_ON(!len);
 	GEM_BUG_ON(len > guc->send_regs.count);
 
-	/* We expect only action code */
-	GEM_BUG_ON(*action & ~INTEL_GUC_MSG_CODE_MASK);
-
-	/* If CT is available, we expect to use MMIO only during init/fini */
-	GEM_BUG_ON(*action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
-		   *action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, request[0]) != GUC_HXG_ORIGIN_HOST);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, request[0]) != GUC_HXG_TYPE_REQUEST);
 
 	mutex_lock(&guc->send_mutex);
 	intel_uncore_forcewake_get(uncore, guc->send_regs.fw_domains);
 
+retry:
 	for (i = 0; i < len; i++)
-		intel_uncore_write(uncore, guc_send_reg(guc, i), action[i]);
+		intel_uncore_write(uncore, guc_send_reg(guc, i), request[i]);
 
 	intel_uncore_posting_read(uncore, guc_send_reg(guc, i - 1));
 
@@ -410,30 +403,74 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
 	 */
 	ret = __intel_wait_for_register_fw(uncore,
 					   guc_send_reg(guc, 0),
-					   INTEL_GUC_MSG_TYPE_MASK,
-					   INTEL_GUC_MSG_TYPE_RESPONSE <<
-					   INTEL_GUC_MSG_TYPE_SHIFT,
-					   10, 10, &status);
-	/* If GuC explicitly returned an error, convert it to -EIO */
-	if (!ret && !INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(status))
-		ret = -EIO;
+					   GUC_HXG_MSG_0_ORIGIN,
+					   FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
+						      GUC_HXG_ORIGIN_GUC),
+					   10, 10, &header);
+	if (unlikely(ret)) {
+timeout:
+		drm_err(&i915->drm, "mmio request %#x: no reply %x\n",
+			request[0], header);
+		goto out;
+	}
 
-	if (ret) {
-		DRM_ERROR("MMIO: GuC action %#x failed with error %d %#x\n",
-			  action[0], ret, status);
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_BUSY) {
+#define done ({ header = intel_uncore_read(uncore, guc_send_reg(guc, 0)); \
+		FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) != GUC_HXG_ORIGIN_GUC || \
+		FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_NO_RESPONSE_BUSY; })
+
+		ret = wait_for(done, 1000);
+		if (unlikely(ret))
+			goto timeout;
+		if (unlikely(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) !=
+				       GUC_HXG_ORIGIN_GUC))
+			goto proto;
+#undef done
+	}
+
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_RETRY) {
+		u32 reason = FIELD_GET(GUC_HXG_RETRY_MSG_0_REASON, header);
+
+		drm_dbg(&i915->drm, "mmio request %#x: retrying, reason %u\n",
+			request[0], reason);
+		goto retry;
+	}
+
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_RESPONSE_FAILURE) {
+		u32 hint = FIELD_GET(GUC_HXG_FAILURE_MSG_0_HINT, header);
+		u32 error = FIELD_GET(GUC_HXG_FAILURE_MSG_0_ERROR, header);
+
+		drm_err(&i915->drm, "mmio request %#x: failure %x/%u\n",
+			request[0], error, hint);
+		ret = -ENXIO;
+		goto out;
+	}
+
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
+proto:
+		drm_err(&i915->drm, "mmio request %#x: unexpected reply %#x\n",
+			request[0], header);
+		ret = -EPROTO;
 		goto out;
 	}
 
 	if (response_buf) {
-		int count = min(response_buf_size, guc->send_regs.count - 1);
+		int count = min(response_buf_size, guc->send_regs.count);
 
-		for (i = 0; i < count; i++)
+		GEM_BUG_ON(!count);
+
+		response_buf[0] = header;
+
+		for (i = 1; i < count; i++)
 			response_buf[i] = intel_uncore_read(uncore,
-							    guc_send_reg(guc, i + 1));
-	}
+							    guc_send_reg(guc, i));
 
-	/* Use data from the GuC response as our return value */
-	ret = INTEL_GUC_MSG_TO_DATA(status);
+		/* Use number of copied dwords as our return value */
+		ret = count;
+	} else {
+		/* Use data from the GuC response as our return value */
+		ret = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header);
+	}
 
 out:
 	intel_uncore_forcewake_put(uncore, guc->send_regs.fw_domains);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
index 9abfbc6edbd6..b82145652d57 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
@@ -24,10 +24,6 @@
  *      +---------------------------------------+
  *      | guc_gt_system_info                    |
  *      +---------------------------------------+
- *      | guc_clients_info                      |
- *      +---------------------------------------+
- *      | guc_ct_pool_entry[size]               |
- *      +---------------------------------------+
  *      | padding                               |
  *      +---------------------------------------+ <== 4K aligned
  *      | private data                          |
@@ -39,8 +35,6 @@ struct __guc_ads_blob {
 	struct guc_ads ads;
 	struct guc_policies policies;
 	struct guc_gt_system_info system_info;
-	struct guc_clients_info clients_info;
-	struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
 } __packed;
 
 static u32 guc_ads_private_data_size(struct intel_guc *guc)
@@ -59,38 +53,15 @@ static u32 guc_ads_blob_size(struct intel_guc *guc)
 	       guc_ads_private_data_size(guc);
 }
 
-static void guc_policy_init(struct guc_policy *policy)
-{
-	policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
-	policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
-	policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
-	policy->policy_flags = 0;
-}
-
 static void guc_policies_init(struct guc_policies *policies)
 {
-	struct guc_policy *policy;
-	u32 p, i;
-
-	policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
-	policies->max_num_work_items = POLICY_MAX_NUM_WI;
-
-	for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
-		for (i = 0; i < GUC_MAX_ENGINE_CLASSES; i++) {
-			policy = &policies->policy[p][i];
-
-			guc_policy_init(policy);
-		}
-	}
-
+	policies->dpc_promote_time = GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
+	policies->max_num_work_items = GLOBAL_POLICY_MAX_NUM_WI;
+	/* Disable automatic resets as not yet supported. */
+	policies->global_flags = GLOBAL_POLICY_DISABLE_ENGINE_RESET;
 	policies->is_valid = 1;
 }
 
-static void guc_ct_pool_entries_init(struct guc_ct_pool_entry *pool, u32 num)
-{
-	memset(pool, 0, num * sizeof(*pool));
-}
-
 static void guc_mapping_table_init(struct intel_gt *gt,
 				   struct guc_gt_system_info *system_info)
 {
@@ -178,17 +149,9 @@ static void __guc_ads_init(struct intel_guc *guc)
 
 	base = intel_guc_ggtt_offset(guc, guc->ads_vma);
 
-	/* Clients info  */
-	guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
-
-	blob->clients_info.clients_num = 1;
-	blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
-	blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
-
 	/* ADS */
 	blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
 	blob->ads.gt_system_info = base + ptr_offset(blob, system_info);
-	blob->ads.clients_info = base + ptr_offset(blob, clients_info);
 
 	/* Private Data */
 	blob->ads.private_data = base + guc_ads_private_data_offset(guc);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
index 8f7b148fef58..43409044528e 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -103,61 +103,66 @@ void intel_guc_ct_init_early(struct intel_guc_ct *ct)
 static inline const char *guc_ct_buffer_type_to_str(u32 type)
 {
 	switch (type) {
-	case INTEL_GUC_CT_BUFFER_TYPE_SEND:
+	case GUC_CTB_TYPE_HOST2GUC:
 		return "SEND";
-	case INTEL_GUC_CT_BUFFER_TYPE_RECV:
+	case GUC_CTB_TYPE_GUC2HOST:
 		return "RECV";
 	default:
 		return "<invalid>";
 	}
 }
 
-static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc,
-				    u32 cmds_addr, u32 size)
+static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc)
 {
 	memset(desc, 0, sizeof(*desc));
-	desc->addr = cmds_addr;
-	desc->size = size;
-	desc->owner = CTB_OWNER_HOST;
 }
 
-static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb, u32 cmds_addr)
+static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb)
 {
-	guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size);
+	ctb->broken = false;
+	guc_ct_buffer_desc_init(ctb->desc);
 }
 
 static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb,
 			       struct guc_ct_buffer_desc *desc,
-			       u32 *cmds, u32 size)
+			       u32 *cmds, u32 size_in_bytes)
 {
-	GEM_BUG_ON(size % 4);
+	GEM_BUG_ON(size_in_bytes % 4);
 
 	ctb->desc = desc;
 	ctb->cmds = cmds;
-	ctb->size = size;
+	ctb->size = size_in_bytes / 4;
 
-	guc_ct_buffer_reset(ctb, 0);
+	guc_ct_buffer_reset(ctb);
 }
 
-static int guc_action_register_ct_buffer(struct intel_guc *guc,
-					 u32 desc_addr,
-					 u32 type)
+static int guc_action_register_ct_buffer(struct intel_guc *guc, u32 type,
+					 u32 desc_addr, u32 buff_addr, u32 size)
 {
-	u32 action[] = {
-		INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER,
-		desc_addr,
-		sizeof(struct guc_ct_buffer_desc),
-		type
+	u32 request[HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN] = {
+		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
+		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_REGISTER_CTB),
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE, size / SZ_4K - 1) |
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE, type),
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR, desc_addr),
+		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR, buff_addr),
 	};
 
-	/* Can't use generic send(), CT registration must go over MMIO */
-	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
+	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
+	GEM_BUG_ON(size % SZ_4K);
+
+	/* CT registration must go over MMIO */
+	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
 }
 
-static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
+static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
+			      u32 desc_addr, u32 buff_addr, u32 size)
 {
-	int err = guc_action_register_ct_buffer(ct_to_guc(ct), desc_addr, type);
+	int err;
 
+	err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
+					    desc_addr, buff_addr, size);
 	if (unlikely(err))
 		CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n",
 			 guc_ct_buffer_type_to_str(type), err);
@@ -166,14 +171,17 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
 
 static int guc_action_deregister_ct_buffer(struct intel_guc *guc, u32 type)
 {
-	u32 action[] = {
-		INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER,
-		CTB_OWNER_HOST,
-		type
+	u32 request[HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN] = {
+		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
+		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_DEREGISTER_CTB),
+		FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type),
 	};
 
-	/* Can't use generic send(), CT deregistration must go over MMIO */
-	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
+	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
+
+	/* CT deregistration must go over MMIO */
+	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
 }
 
 static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type)
@@ -261,7 +269,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct)
 int intel_guc_ct_enable(struct intel_guc_ct *ct)
 {
 	struct intel_guc *guc = ct_to_guc(ct);
-	u32 base, cmds;
+	u32 base, desc, cmds;
 	void *blob;
 	int err;
 
@@ -277,23 +285,26 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
 	GEM_BUG_ON(blob != ct->ctbs.send.desc);
 
 	/* (re)initialize descriptors */
-	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
-	guc_ct_buffer_reset(&ct->ctbs.send, cmds);
-
-	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
-	guc_ct_buffer_reset(&ct->ctbs.recv, cmds);
+	guc_ct_buffer_reset(&ct->ctbs.send);
+	guc_ct_buffer_reset(&ct->ctbs.recv);
 
 	/*
 	 * Register both CT buffers starting with RECV buffer.
 	 * Descriptors are in first half of the blob.
 	 */
-	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.recv.desc, blob),
-				 INTEL_GUC_CT_BUFFER_TYPE_RECV);
+	desc = base + ptrdiff(ct->ctbs.recv.desc, blob);
+	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
+	err = ct_register_buffer(ct, GUC_CTB_TYPE_GUC2HOST,
+				 desc, cmds, ct->ctbs.recv.size * 4);
+
 	if (unlikely(err))
 		goto err_out;
 
-	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.send.desc, blob),
-				 INTEL_GUC_CT_BUFFER_TYPE_SEND);
+	desc = base + ptrdiff(ct->ctbs.send.desc, blob);
+	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
+	err = ct_register_buffer(ct, GUC_CTB_TYPE_HOST2GUC,
+				 desc, cmds, ct->ctbs.send.size * 4);
+
 	if (unlikely(err))
 		goto err_deregister;
 
@@ -302,7 +313,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
 	return 0;
 
 err_deregister:
-	ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
+	ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
 err_out:
 	CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err));
 	return err;
@@ -321,8 +332,8 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
 	ct->enabled = false;
 
 	if (intel_guc_is_fw_running(guc)) {
-		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_SEND);
-		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
+		ct_deregister_buffer(ct, GUC_CTB_TYPE_HOST2GUC);
+		ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
 	}
 }
 
@@ -354,24 +365,6 @@ static void write_barrier(struct intel_guc_ct *ct)
 	}
 }
 
-/**
- * DOC: CTB Host to GuC request
- *
- * Format of the CTB Host to GuC request message is as follows::
- *
- *      +------------+---------+---------+---------+---------+
- *      |   msg[0]   |   [1]   |   [2]   |   ...   |  [n-1]  |
- *      +------------+---------+---------+---------+---------+
- *      |   MESSAGE  |       MESSAGE PAYLOAD                 |
- *      +   HEADER   +---------+---------+---------+---------+
- *      |            |    0    |    1    |   ...   |    n    |
- *      +============+=========+=========+=========+=========+
- *      |  len >= 1  |  FENCE  |     request specific data   |
- *      +------+-----+---------+---------+---------+---------+
- *
- *                   ^-----------------len-------------------^
- */
-
 static int ct_write(struct intel_guc_ct *ct,
 		    const u32 *action,
 		    u32 len /* in dwords */,
@@ -384,20 +377,22 @@ static int ct_write(struct intel_guc_ct *ct,
 	u32 size = ctb->size;
 	u32 used;
 	u32 header;
+	u32 hxg;
 	u32 *cmds = ctb->cmds;
 	unsigned int i;
 
-	if (unlikely(desc->is_in_error))
+	if (unlikely(ctb->broken))
 		return -EPIPE;
 
-	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
-		     (tail | head) >= size))
+	if (unlikely(desc->status))
 		goto corrupted;
 
-	/* later calculations will be done in dwords */
-	head /= 4;
-	tail /= 4;
-	size /= 4;
+	if (unlikely((tail | head) >= size)) {
+		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
+			 head, tail, size);
+		desc->status |= GUC_CTB_STATUS_OVERFLOW;
+		goto corrupted;
+	}
 
 	/*
 	 * tail == head condition indicates empty. GuC FW does not support
@@ -413,22 +408,25 @@ static int ct_write(struct intel_guc_ct *ct,
 		return -ENOSPC;
 
 	/*
-	 * Write the message. The format is the following:
-	 * DW0: header (including action code)
-	 * DW1: fence
-	 * DW2+: action data
+	 * dw0: CT header (including fence)
+	 * dw1: HXG header (including action code)
+	 * dw2+: action data
 	 */
-	header = (len << GUC_CT_MSG_LEN_SHIFT) |
-		 GUC_CT_MSG_SEND_STATUS |
-		 (action[0] << GUC_CT_MSG_ACTION_SHIFT);
+	header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) |
+		 FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) |
+		 FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence);
 
-	CT_DEBUG(ct, "writing %*ph %*ph %*ph\n",
-		 4, &header, 4, &fence, 4 * (len - 1), &action[1]);
+	hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+	      FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION |
+			 GUC_HXG_REQUEST_MSG_0_DATA0, action[0]);
+
+	CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n",
+		 tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]);
 
 	cmds[tail] = header;
 	tail = (tail + 1) % size;
 
-	cmds[tail] = fence;
+	cmds[tail] = hxg;
 	tail = (tail + 1) % size;
 
 	for (i = 1; i < len; i++) {
@@ -443,14 +441,15 @@ static int ct_write(struct intel_guc_ct *ct,
 	 */
 	write_barrier(ct);
 
-	/* now update desc tail (back in bytes) */
-	desc->tail = tail * 4;
+	/* now update descriptor */
+	WRITE_ONCE(desc->tail, tail);
+
 	return 0;
 
 corrupted:
-	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
-		 desc->addr, desc->head, desc->tail, desc->size);
-	desc->is_in_error = 1;
+	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
+		 desc->head, desc->tail, desc->status);
+	ctb->broken = true;
 	return -EPIPE;
 }
 
@@ -477,7 +476,9 @@ static int wait_for_ct_request_update(struct ct_request *req, u32 *status)
 	 * up to that length of time, then switch to a slower sleep-wait loop.
 	 * No GuC command should ever take longer than 10ms.
 	 */
-#define done INTEL_GUC_MSG_IS_RESPONSE(READ_ONCE(req->status))
+#define done \
+	(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, READ_ONCE(req->status)) == \
+	 GUC_HXG_ORIGIN_GUC)
 	err = wait_for_us(done, 10);
 	if (err)
 		err = wait_for(done, 10);
@@ -532,21 +533,21 @@ static int ct_send(struct intel_guc_ct *ct,
 	if (unlikely(err))
 		goto unlink;
 
-	if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) {
+	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
 		err = -EIO;
 		goto unlink;
 	}
 
 	if (response_buf) {
 		/* There shall be no data in the status */
-		WARN_ON(INTEL_GUC_MSG_TO_DATA(request.status));
+		WARN_ON(FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, request.status));
 		/* Return actual response len */
 		err = request.response_len;
 	} else {
 		/* There shall be no response payload */
 		WARN_ON(request.response_len);
 		/* Return data decoded from the status dword */
-		err = INTEL_GUC_MSG_TO_DATA(*status);
+		err = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, *status);
 	}
 
 unlink:
@@ -583,21 +584,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
 	return ret;
 }
 
-static inline unsigned int ct_header_get_len(u32 header)
-{
-	return (header >> GUC_CT_MSG_LEN_SHIFT) & GUC_CT_MSG_LEN_MASK;
-}
-
-static inline unsigned int ct_header_get_action(u32 header)
-{
-	return (header >> GUC_CT_MSG_ACTION_SHIFT) & GUC_CT_MSG_ACTION_MASK;
-}
-
-static inline bool ct_header_is_response(u32 header)
-{
-	return !!(header & GUC_CT_MSG_IS_RESPONSE);
-}
-
 static struct ct_incoming_msg *ct_alloc_msg(u32 num_dwords)
 {
 	struct ct_incoming_msg *msg;
@@ -630,17 +616,18 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	unsigned int i;
 	u32 header;
 
-	if (unlikely(desc->is_in_error))
+	if (unlikely(ctb->broken))
 		return -EPIPE;
 
-	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
-		     (tail | head) >= size))
+	if (unlikely(desc->status))
 		goto corrupted;
 
-	/* later calculations will be done in dwords */
-	head /= 4;
-	tail /= 4;
-	size /= 4;
+	if (unlikely((tail | head) >= size)) {
+		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
+			 head, tail, size);
+		desc->status |= GUC_CTB_STATUS_OVERFLOW;
+		goto corrupted;
+	}
 
 	/* tail == head condition indicates empty */
 	available = tail - head;
@@ -659,7 +646,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	head = (head + 1) % size;
 
 	/* message len with header */
-	len = ct_header_get_len(header) + 1;
+	len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, header) + GUC_CTB_MSG_MIN_LEN;
 	if (unlikely(len > (u32)available)) {
 		CT_ERROR(ct, "Incomplete message %*ph %*ph %*ph\n",
 			 4, &header,
@@ -667,6 +654,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 			      size - head : available - 1), &cmds[head],
 			 4 * (head + available - 1 > size ?
 			      available - 1 - size + head : 0), &cmds[0]);
+		desc->status |= GUC_CTB_STATUS_UNDERFLOW;
 		goto corrupted;
 	}
 
@@ -689,65 +677,36 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	}
 	CT_DEBUG(ct, "received %*ph\n", 4 * len, (*msg)->msg);
 
-	desc->head = head * 4;
+	/* now update descriptor */
+	WRITE_ONCE(desc->head, head);
+
 	return available - len;
 
 corrupted:
-	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
-		 desc->addr, desc->head, desc->tail, desc->size);
-	desc->is_in_error = 1;
+	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
+		 desc->head, desc->tail, desc->status);
+	ctb->broken = true;
 	return -EPIPE;
 }
 
-/**
- * DOC: CTB GuC to Host response
- *
- * Format of the CTB GuC to Host response message is as follows::
- *
- *      +------------+---------+---------+---------+---------+---------+
- *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
- *      +------------+---------+---------+---------+---------+---------+
- *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
- *      +   HEADER   +---------+---------+---------+---------+---------+
- *      |            |    0    |    1    |    2    |   ...   |    n    |
- *      +============+=========+=========+=========+=========+=========+
- *      |  len >= 2  |  FENCE  |  STATUS |   response specific data    |
- *      +------+-----+---------+---------+---------+---------+---------+
- *
- *                   ^-----------------------len-----------------------^
- */
-
 static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *response)
 {
-	u32 header = response->msg[0];
-	u32 len = ct_header_get_len(header);
-	u32 fence;
-	u32 status;
-	u32 datalen;
+	u32 len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, response->msg[0]);
+	u32 fence = FIELD_GET(GUC_CTB_MSG_0_FENCE, response->msg[0]);
+	const u32 *hxg = &response->msg[GUC_CTB_MSG_MIN_LEN];
+	const u32 *data = &hxg[GUC_HXG_MSG_MIN_LEN];
+	u32 datalen = len - GUC_HXG_MSG_MIN_LEN;
 	struct ct_request *req;
 	unsigned long flags;
 	bool found = false;
 	int err = 0;
 
-	GEM_BUG_ON(!ct_header_is_response(header));
-
-	/* Response payload shall at least include fence and status */
-	if (unlikely(len < 2)) {
-		CT_ERROR(ct, "Corrupted response (len %u)\n", len);
-		return -EPROTO;
-	}
-
-	fence = response->msg[1];
-	status = response->msg[2];
-	datalen = len - 2;
-
-	/* Format of the status follows RESPONSE message */
-	if (unlikely(!INTEL_GUC_MSG_IS_RESPONSE(status))) {
-		CT_ERROR(ct, "Corrupted response (status %#x)\n", status);
-		return -EPROTO;
-	}
+	GEM_BUG_ON(len < GUC_HXG_MSG_MIN_LEN);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]) != GUC_HXG_ORIGIN_GUC);
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_SUCCESS &&
+		   FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_FAILURE);
 
-	CT_DEBUG(ct, "response fence %u status %#x\n", fence, status);
+	CT_DEBUG(ct, "response fence %u status %#x\n", fence, hxg[0]);
 
 	spin_lock_irqsave(&ct->requests.lock, flags);
 	list_for_each_entry(req, &ct->requests.pending, link) {
@@ -763,9 +722,9 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
 			err = -EMSGSIZE;
 		}
 		if (datalen)
-			memcpy(req->response_buf, response->msg + 3, 4 * datalen);
+			memcpy(req->response_buf, data, 4 * datalen);
 		req->response_len = datalen;
-		WRITE_ONCE(req->status, status);
+		WRITE_ONCE(req->status, hxg[0]);
 		found = true;
 		break;
 	}
@@ -786,14 +745,16 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
 static int ct_process_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
 {
 	struct intel_guc *guc = ct_to_guc(ct);
-	u32 header, action, len;
+	const u32 *hxg;
 	const u32 *payload;
+	u32 hxg_len, action, len;
 	int ret;
 
-	header = request->msg[0];
-	payload = &request->msg[1];
-	action = ct_header_get_action(header);
-	len = ct_header_get_len(header);
+	hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
+	hxg_len = request->size - GUC_CTB_MSG_MIN_LEN;
+	payload = &hxg[GUC_HXG_MSG_MIN_LEN];
+	action = FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, hxg[0]);
+	len = hxg_len - GUC_HXG_MSG_MIN_LEN;
 
 	CT_DEBUG(ct, "request %x %*ph\n", action, 4 * len, payload);
 
@@ -855,29 +816,12 @@ static void ct_incoming_request_worker_func(struct work_struct *w)
 		queue_work(system_unbound_wq, &ct->requests.worker);
 }
 
-/**
- * DOC: CTB GuC to Host request
- *
- * Format of the CTB GuC to Host request message is as follows::
- *
- *      +------------+---------+---------+---------+---------+---------+
- *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
- *      +------------+---------+---------+---------+---------+---------+
- *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
- *      +   HEADER   +---------+---------+---------+---------+---------+
- *      |            |    0    |    1    |    2    |   ...   |    n    |
- *      +============+=========+=========+=========+=========+=========+
- *      |     len    |            request specific data                |
- *      +------+-----+---------+---------+---------+---------+---------+
- *
- *                   ^-----------------------len-----------------------^
- */
-
-static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
+static int ct_handle_event(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
 {
+	const u32 *hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
 	unsigned long flags;
 
-	GEM_BUG_ON(ct_header_is_response(request->msg[0]));
+	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_EVENT);
 
 	spin_lock_irqsave(&ct->requests.lock, flags);
 	list_add_tail(&request->link, &ct->requests.incoming);
@@ -887,15 +831,53 @@ static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *re
 	return 0;
 }
 
-static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
+static int ct_handle_hxg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
 {
-	u32 header = msg->msg[0];
+	u32 origin, type;
+	u32 *hxg;
 	int err;
 
-	if (ct_header_is_response(header))
+	if (unlikely(msg->size < GUC_CTB_HXG_MSG_MIN_LEN))
+		return -EBADMSG;
+
+	hxg = &msg->msg[GUC_CTB_MSG_MIN_LEN];
+
+	origin = FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]);
+	if (unlikely(origin != GUC_HXG_ORIGIN_GUC)) {
+		err = -EPROTO;
+		goto failed;
+	}
+
+	type = FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]);
+	switch (type) {
+	case GUC_HXG_TYPE_EVENT:
+		err = ct_handle_event(ct, msg);
+		break;
+	case GUC_HXG_TYPE_RESPONSE_SUCCESS:
+	case GUC_HXG_TYPE_RESPONSE_FAILURE:
 		err = ct_handle_response(ct, msg);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+	}
+
+	if (unlikely(err)) {
+failed:
+		CT_ERROR(ct, "Failed to handle HXG message (%pe) %*ph\n",
+			 ERR_PTR(err), 4 * GUC_HXG_MSG_MIN_LEN, hxg);
+	}
+	return err;
+}
+
+static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
+{
+	u32 format = FIELD_GET(GUC_CTB_MSG_0_FORMAT, msg->msg[0]);
+	int err;
+
+	if (format == GUC_CTB_FORMAT_HXG)
+		err = ct_handle_hxg(ct, msg);
 	else
-		err = ct_handle_request(ct, msg);
+		err = -EOPNOTSUPP;
 
 	if (unlikely(err)) {
 		CT_ERROR(ct, "Failed to process CT message (%pe) %*ph\n",
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
index cb222f202301..1ae2dde6db93 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
@@ -31,13 +31,15 @@ struct intel_guc;
  * @lock: protects access to the commands buffer and buffer descriptor
  * @desc: pointer to the buffer descriptor
  * @cmds: pointer to the commands buffer
- * @size: size of the commands buffer
+ * @size: size of the commands buffer in dwords
+ * @broken: flag to indicate if descriptor data is broken
  */
 struct intel_guc_ct_buffer {
 	spinlock_t lock;
 	struct guc_ct_buffer_desc *desc;
 	u32 *cmds;
 	u32 size;
+	bool broken;
 };
 
 
@@ -59,7 +61,7 @@ struct intel_guc_ct {
 	struct tasklet_struct receive_tasklet;
 
 	struct {
-		u32 last_fence; /* last fence used to send request */
+		u16 last_fence; /* last fence used to send request */
 
 		spinlock_t lock; /* protects pending requests list */
 		struct list_head pending; /* requests waiting for response */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
index e9a9d85e2aa3..617ec601648d 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
@@ -81,10 +81,8 @@
 #define   GUC_LOG_ALLOC_IN_MEGABYTE	(1 << 3)
 #define   GUC_LOG_CRASH_SHIFT		4
 #define   GUC_LOG_CRASH_MASK		(0x3 << GUC_LOG_CRASH_SHIFT)
-#define   GUC_LOG_DPC_SHIFT		6
-#define   GUC_LOG_DPC_MASK	        (0x7 << GUC_LOG_DPC_SHIFT)
-#define   GUC_LOG_ISR_SHIFT		9
-#define   GUC_LOG_ISR_MASK	        (0x7 << GUC_LOG_ISR_SHIFT)
+#define   GUC_LOG_DEBUG_SHIFT		6
+#define   GUC_LOG_DEBUG_MASK	        (0xF << GUC_LOG_DEBUG_SHIFT)
 #define   GUC_LOG_BUF_ADDR_SHIFT	12
 
 #define GUC_CTL_WA			1
@@ -247,32 +245,14 @@ struct guc_stage_desc {
 
 /* Scheduling policy settings */
 
-/* Reset engine upon preempt failure */
-#define POLICY_RESET_ENGINE		(1<<0)
-/* Preempt to idle on quantum expiry */
-#define POLICY_PREEMPT_TO_IDLE		(1<<1)
-
-#define POLICY_MAX_NUM_WI 15
-#define POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
-#define POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
-#define POLICY_DEFAULT_PREEMPTION_TIME_US 500000
-#define POLICY_DEFAULT_FAULT_TIME_US 250000
-
-struct guc_policy {
-	/* Time for one workload to execute. (in micro seconds) */
-	u32 execution_quantum;
-	/* Time to wait for a preemption request to completed before issuing a
-	 * reset. (in micro seconds). */
-	u32 preemption_time;
-	/* How much time to allow to run after the first fault is observed.
-	 * Then preempt afterwards. (in micro seconds) */
-	u32 fault_time;
-	u32 policy_flags;
-	u32 reserved[8];
-} __packed;
+#define GLOBAL_POLICY_MAX_NUM_WI 15
+
+/* Don't reset an engine upon preemption failure */
+#define GLOBAL_POLICY_DISABLE_ENGINE_RESET				BIT(0)
+
+#define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
 
 struct guc_policies {
-	struct guc_policy policy[GUC_CLIENT_PRIORITY_NUM][GUC_MAX_ENGINE_CLASSES];
 	u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
 	/* In micro seconds. How much time to allow before DPC processing is
 	 * called back via interrupt (to prevent DPC queue drain starving).
@@ -286,6 +266,7 @@ struct guc_policies {
 	 * idle. */
 	u32 max_num_work_items;
 
+	u32 global_flags;
 	u32 reserved[4];
 } __packed;
 
@@ -311,29 +292,13 @@ struct guc_gt_system_info {
 	u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
 } __packed;
 
-/* Clients info */
-struct guc_ct_pool_entry {
-	struct guc_ct_buffer_desc desc;
-	u32 reserved[7];
-} __packed;
-
-#define GUC_CT_POOL_SIZE	2
-
-struct guc_clients_info {
-	u32 clients_num;
-	u32 reserved0[13];
-	u32 ct_pool_addr;
-	u32 ct_pool_count;
-	u32 reserved[4];
-} __packed;
-
 /* GuC Additional Data Struct */
 struct guc_ads {
 	struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
 	u32 reserved0;
 	u32 scheduler_policies;
 	u32 gt_system_info;
-	u32 clients_info;
+	u32 reserved1;
 	u32 control_data;
 	u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
 	u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
@@ -344,8 +309,7 @@ struct guc_ads {
 /* GuC logging structures */
 
 enum guc_log_buffer_type {
-	GUC_ISR_LOG_BUFFER,
-	GUC_DPC_LOG_BUFFER,
+	GUC_DEBUG_LOG_BUFFER,
 	GUC_CRASH_DUMP_LOG_BUFFER,
 	GUC_MAX_LOG_BUFFER
 };
@@ -414,23 +378,6 @@ struct guc_shared_ctx_data {
 	struct guc_ctx_report preempt_ctx_report[GUC_MAX_ENGINES_NUM];
 } __packed;
 
-#define __INTEL_GUC_MSG_GET(T, m) \
-	(((m) & INTEL_GUC_MSG_ ## T ## _MASK) >> INTEL_GUC_MSG_ ## T ## _SHIFT)
-#define INTEL_GUC_MSG_TO_TYPE(m)	__INTEL_GUC_MSG_GET(TYPE, m)
-#define INTEL_GUC_MSG_TO_DATA(m)	__INTEL_GUC_MSG_GET(DATA, m)
-#define INTEL_GUC_MSG_TO_CODE(m)	__INTEL_GUC_MSG_GET(CODE, m)
-
-#define __INTEL_GUC_MSG_TYPE_IS(T, m) \
-	(INTEL_GUC_MSG_TO_TYPE(m) == INTEL_GUC_MSG_TYPE_ ## T)
-#define INTEL_GUC_MSG_IS_REQUEST(m)	__INTEL_GUC_MSG_TYPE_IS(REQUEST, m)
-#define INTEL_GUC_MSG_IS_RESPONSE(m)	__INTEL_GUC_MSG_TYPE_IS(RESPONSE, m)
-
-#define INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(m) \
-	 (typecheck(u32, (m)) && \
-	  ((m) & (INTEL_GUC_MSG_TYPE_MASK | INTEL_GUC_MSG_CODE_MASK)) == \
-	  ((INTEL_GUC_MSG_TYPE_RESPONSE << INTEL_GUC_MSG_TYPE_SHIFT) | \
-	   (INTEL_GUC_RESPONSE_STATUS_SUCCESS << INTEL_GUC_MSG_CODE_SHIFT)))
-
 /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
 enum intel_guc_recv_message {
 	INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
index c36d5eb5bbb9..ac0931f0374b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
@@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct intel_guc_log *log,
 static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type)
 {
 	switch (type) {
-	case GUC_ISR_LOG_BUFFER:
-		return ISR_BUFFER_SIZE;
-	case GUC_DPC_LOG_BUFFER:
-		return DPC_BUFFER_SIZE;
+	case GUC_DEBUG_LOG_BUFFER:
+		return DEBUG_BUFFER_SIZE;
 	case GUC_CRASH_DUMP_LOG_BUFFER:
 		return CRASH_BUFFER_SIZE;
 	default:
@@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
 	src_data += PAGE_SIZE;
 	dst_data += PAGE_SIZE;
 
-	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
+	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
 		/*
 		 * Make a copy of the state structure, inside GuC log buffer
 		 * (which is uncached mapped), on the stack to avoid reading
@@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
 	 *  +===============================+ 00B
 	 *  |    Crash dump state header    |
 	 *  +-------------------------------+ 32B
-	 *  |       DPC state header        |
+	 *  |      Debug state header       |
 	 *  +-------------------------------+ 64B
-	 *  |       ISR state header        |
-	 *  +-------------------------------+ 96B
 	 *  |                               |
 	 *  +===============================+ PAGE_SIZE (4KB)
 	 *  |        Crash Dump logs        |
 	 *  +===============================+ + CRASH_SIZE
-	 *  |           DPC logs            |
-	 *  +===============================+ + DPC_SIZE
-	 *  |           ISR logs            |
-	 *  +===============================+ + ISR_SIZE
+	 *  |          Debug logs           |
+	 *  +===============================+ + DEBUG_SIZE
 	 */
-	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
-			ISR_BUFFER_SIZE;
+	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
 
 	vma = intel_guc_allocate_vma(guc, guc_log_size);
 	if (IS_ERR(vma)) {
@@ -675,10 +668,8 @@ static const char *
 stringify_guc_log_type(enum guc_log_buffer_type type)
 {
 	switch (type) {
-	case GUC_ISR_LOG_BUFFER:
-		return "ISR";
-	case GUC_DPC_LOG_BUFFER:
-		return "DPC";
+	case GUC_DEBUG_LOG_BUFFER:
+		return "DEBUG";
 	case GUC_CRASH_DUMP_LOG_BUFFER:
 		return "CRASH";
 	default:
@@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p)
 
 	drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
 
-	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
+	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
 		drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
 			   stringify_guc_log_type(type),
 			   log->stats[type].flush,
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
index 11fccd0b2294..ac1ee1d5ce10 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
@@ -17,12 +17,10 @@ struct intel_guc;
 
 #ifdef CONFIG_DRM_I915_DEBUG_GUC
 #define CRASH_BUFFER_SIZE	SZ_2M
-#define DPC_BUFFER_SIZE		SZ_8M
-#define ISR_BUFFER_SIZE		SZ_8M
+#define DEBUG_BUFFER_SIZE	SZ_16M
 #else
 #define CRASH_BUFFER_SIZE	SZ_8K
-#define DPC_BUFFER_SIZE		SZ_32K
-#define ISR_BUFFER_SIZE		SZ_32K
+#define DEBUG_BUFFER_SIZE	SZ_64K
 #endif
 
 /*
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index df647c9a8d56..9f23e9de3237 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -48,19 +48,19 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
  * firmware as TGL.
  */
 #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \
-	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
-	fw_def(ROCKETLAKE,  0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
-	fw_def(TIGERLAKE,   0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
-	fw_def(JASPERLAKE,  0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
-	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
-	fw_def(ICELAKE,     0, guc_def(icl, 49, 0, 1), huc_def(icl,  9, 0, 0)) \
-	fw_def(COMETLAKE,   5, guc_def(cml, 49, 0, 1), huc_def(cml,  4, 0, 0)) \
-	fw_def(COMETLAKE,   0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
-	fw_def(COFFEELAKE,  0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
-	fw_def(GEMINILAKE,  0, guc_def(glk, 49, 0, 1), huc_def(glk,  4, 0, 0)) \
-	fw_def(KABYLAKE,    0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
-	fw_def(BROXTON,     0, guc_def(bxt, 49, 0, 1), huc_def(bxt,  2, 0, 0)) \
-	fw_def(SKYLAKE,     0, guc_def(skl, 49, 0, 1), huc_def(skl,  2, 0, 0))
+	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
+	fw_def(ROCKETLAKE,  0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
+	fw_def(TIGERLAKE,   0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
+	fw_def(JASPERLAKE,  0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
+	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
+	fw_def(ICELAKE,     0, guc_def(icl, 62, 0, 0), huc_def(icl,  9, 0, 0)) \
+	fw_def(COMETLAKE,   5, guc_def(cml, 62, 0, 0), huc_def(cml,  4, 0, 0)) \
+	fw_def(COMETLAKE,   0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
+	fw_def(COFFEELAKE,  0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
+	fw_def(GEMINILAKE,  0, guc_def(glk, 62, 0, 0), huc_def(glk,  4, 0, 0)) \
+	fw_def(KABYLAKE,    0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
+	fw_def(BROXTON,     0, guc_def(bxt, 62, 0, 0), huc_def(bxt,  2, 0, 0)) \
+	fw_def(SKYLAKE,     0, guc_def(skl, 62, 0, 0), huc_def(skl,  2, 0, 0))
 
 #define __MAKE_UC_FW_PATH(prefix_, name_, major_, minor_, patch_) \
 	"i915/" \
-- 
2.28.0

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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH 3/3] drm/i915/doc: Include GuC ABI documentation
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
@ 2021-06-16  0:13   ` Matthew Brost
  -1 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:13 UTC (permalink / raw)
  To: intel-gfx, dri-devel
  Cc: daniele.ceraolospurio, john.c.harrison, Michal.Wajdeczko

From: Michal Wajdeczko <michal.wajdeczko@intel.com>

GuC ABI documentation is now ready to be included in i915.rst

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Cc: Piotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
---
 Documentation/gpu/i915.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 42ce0196930a..c7846b1d9293 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -518,6 +518,14 @@ GuC-based command submission
 .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
    :doc: GuC-based command submission
 
+GuC ABI
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
+
 HuC
 ---
 .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c
-- 
2.28.0


^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [Intel-gfx] [PATCH 3/3] drm/i915/doc: Include GuC ABI documentation
@ 2021-06-16  0:13   ` Matthew Brost
  0 siblings, 0 replies; 19+ messages in thread
From: Matthew Brost @ 2021-06-16  0:13 UTC (permalink / raw)
  To: intel-gfx, dri-devel

From: Michal Wajdeczko <michal.wajdeczko@intel.com>

GuC ABI documentation is now ready to be included in i915.rst

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Cc: Piotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
---
 Documentation/gpu/i915.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 42ce0196930a..c7846b1d9293 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -518,6 +518,14 @@ GuC-based command submission
 .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
    :doc: GuC-based command submission
 
+GuC ABI
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
+
 HuC
 ---
 .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c
-- 
2.28.0

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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Update firmware to v62.0.0 (rev4)
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
                   ` (3 preceding siblings ...)
  (?)
@ 2021-06-16  0:20 ` Patchwork
  -1 siblings, 0 replies; 19+ messages in thread
From: Patchwork @ 2021-06-16  0:20 UTC (permalink / raw)
  To: Matthew Brost; +Cc: intel-gfx

== Series Details ==

Series: Update firmware to v62.0.0 (rev4)
URL   : https://patchwork.freedesktop.org/series/91106/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
20bd5d817f52 drm/i915/guc: Introduce unified HXG messages
899d9ce395b2 drm/i915/guc: Update firmware to v62.0.0
-:78: CHECK:CAMELCASE: Avoid CamelCase: <GUC_HXG_REQUEST_MSG_n_DATAn>
#78: FILE: drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h:60:
+#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn

total: 0 errors, 0 warnings, 1 checks, 1394 lines checked
386ac142a390 drm/i915/doc: Include GuC ABI documentation


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^ permalink raw reply	[flat|nested] 19+ messages in thread

* [Intel-gfx] ✗ Fi.CI.SPARSE: warning for Update firmware to v62.0.0 (rev4)
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
                   ` (4 preceding siblings ...)
  (?)
@ 2021-06-16  0:22 ` Patchwork
  -1 siblings, 0 replies; 19+ messages in thread
From: Patchwork @ 2021-06-16  0:22 UTC (permalink / raw)
  To: Matthew Brost; +Cc: intel-gfx

== Series Details ==

Series: Update firmware to v62.0.0 (rev4)
URL   : https://patchwork.freedesktop.org/series/91106/
State : warning

== Summary ==

$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
-
+drivers/gpu/drm/i915/display/intel_display.c:1893:21:    expected struct i915_vma *[assigned] vma
+drivers/gpu/drm/i915/display/intel_display.c:1893:21:    got void [noderef] __iomem *[assigned] iomem
+drivers/gpu/drm/i915/display/intel_display.c:1893:21: warning: incorrect type in assignment (different address spaces)
+drivers/gpu/drm/i915/gem/i915_gem_ttm.c:564:38: warning: symbol 'i915_gem_ttm_obj_ops' was not declared. Should it be static?
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:27:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:27:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:27:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:32:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:32:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:49:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:49:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:49:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:56:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_engine_stats.h:56:9: warning: trying to copy expression type 31
+drivers/gpu/drm/i915/gt/intel_reset.c:1396:5: warning: context imbalance in 'intel_gt_reset_trylock' - different lock contexts for basic block
+drivers/gpu/drm/i915/gt/intel_ring_submission.c:1207:24: warning: Using plain integer as NULL pointer
+drivers/gpu/drm/i915/i915_perf.c:1434:15: warning: memset with byte count of 16777216
+drivers/gpu/drm/i915/i915_perf.c:1488:15: warning: memset with byte count of 16777216
+./include/asm-generic/bitops/find.h:112:45: warning: shift count is negative (-262080)
+./include/asm-generic/bitops/find.h:32:31: warning: shift count is negative (-262080)
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen8_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen8_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen8_write8' - different lock contexts for basic block


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^ permalink raw reply	[flat|nested] 19+ messages in thread

* [Intel-gfx] ✓ Fi.CI.BAT: success for Update firmware to v62.0.0 (rev4)
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
                   ` (5 preceding siblings ...)
  (?)
@ 2021-06-16  0:49 ` Patchwork
  -1 siblings, 0 replies; 19+ messages in thread
From: Patchwork @ 2021-06-16  0:49 UTC (permalink / raw)
  To: Matthew Brost; +Cc: intel-gfx


[-- Attachment #1.1: Type: text/plain, Size: 3219 bytes --]

== Series Details ==

Series: Update firmware to v62.0.0 (rev4)
URL   : https://patchwork.freedesktop.org/series/91106/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_10226 -> Patchwork_20379
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/index.html

Known issues
------------

  Here are the changes found in Patchwork_20379 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_basic@semaphore:
    - fi-bdw-5557u:       NOTRUN -> [SKIP][1] ([fdo#109271]) +23 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/fi-bdw-5557u/igt@amdgpu/amd_basic@semaphore.html

  * igt@amdgpu/amd_cs_nop@sync-fork-compute0:
    - fi-snb-2600:        NOTRUN -> [SKIP][2] ([fdo#109271]) +17 similar issues
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/fi-snb-2600/igt@amdgpu/amd_cs_nop@sync-fork-compute0.html

  * igt@core_hotunplug@unbind-rebind:
    - fi-bdw-5557u:       NOTRUN -> [WARN][3] ([i915#2283])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/fi-bdw-5557u/igt@core_hotunplug@unbind-rebind.html

  
#### Possible fixes ####

  * igt@gem_exec_suspend@basic-s3:
    - {fi-tgl-1115g4}:    [FAIL][4] ([i915#1888]) -> [PASS][5]
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/fi-tgl-1115g4/igt@gem_exec_suspend@basic-s3.html
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/fi-tgl-1115g4/igt@gem_exec_suspend@basic-s3.html

  * igt@i915_selftest@live@hangcheck:
    - fi-snb-2600:        [INCOMPLETE][6] ([i915#2782]) -> [PASS][7]
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/fi-snb-2600/igt@i915_selftest@live@hangcheck.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/fi-snb-2600/igt@i915_selftest@live@hangcheck.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [i915#1888]: https://gitlab.freedesktop.org/drm/intel/issues/1888
  [i915#2283]: https://gitlab.freedesktop.org/drm/intel/issues/2283
  [i915#2782]: https://gitlab.freedesktop.org/drm/intel/issues/2782


Participating hosts (43 -> 38)
------------------------------

  Missing    (5): fi-ilk-m540 fi-hsw-4200u fi-bsw-cyan fi-ctg-p8600 fi-bdw-samus 


Build changes
-------------

  * Linux: CI_DRM_10226 -> Patchwork_20379

  CI-20190529: 20190529
  CI_DRM_10226: e59107e71dfda22b959337ca2dd68b1bcbe78710 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6108: be59e0579cca677566c85540219fb9545e9afadf @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_20379: 386ac142a39041acd5bd35391567056b9146e62f @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

386ac142a390 drm/i915/doc: Include GuC ABI documentation
899d9ce395b2 drm/i915/guc: Update firmware to v62.0.0
20bd5d817f52 drm/i915/guc: Introduce unified HXG messages

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/index.html

[-- Attachment #1.2: Type: text/html, Size: 4027 bytes --]

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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 19+ messages in thread

* [Intel-gfx] ✗ Fi.CI.IGT: failure for Update firmware to v62.0.0 (rev4)
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
                   ` (6 preceding siblings ...)
  (?)
@ 2021-06-16  6:04 ` Patchwork
  2021-06-18 22:38   ` Matt Roper
  -1 siblings, 1 reply; 19+ messages in thread
From: Patchwork @ 2021-06-16  6:04 UTC (permalink / raw)
  To: Matthew Brost; +Cc: intel-gfx


[-- Attachment #1.1: Type: text/plain, Size: 30254 bytes --]

== Series Details ==

Series: Update firmware to v62.0.0 (rev4)
URL   : https://patchwork.freedesktop.org/series/91106/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_10226_full -> Patchwork_20379_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_20379_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_20379_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_20379_full:

### IGT changes ###

#### Possible regressions ####

  * igt@kms_big_fb@linear-32bpp-rotate-180:
    - shard-iclb:         [PASS][1] -> [DMESG-WARN][2] +1 similar issue
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb4/igt@kms_big_fb@linear-32bpp-rotate-180.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_big_fb@linear-32bpp-rotate-180.html

  
#### Warnings ####

  * igt@gem_exec_fair@basic-pace-solo@rcs0:
    - shard-glk:          [FAIL][3] ([i915#2842]) -> [FAIL][4]
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk2/igt@gem_exec_fair@basic-pace-solo@rcs0.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk3/igt@gem_exec_fair@basic-pace-solo@rcs0.html

  
Known issues
------------

  Here are the changes found in Patchwork_20379_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_create@create-clear:
    - shard-glk:          [PASS][5] -> [FAIL][6] ([i915#3160])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk2/igt@gem_create@create-clear.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk3/igt@gem_create@create-clear.html

  * igt@gem_ctx_isolation@preservation-s3@bcs0:
    - shard-kbl:          [PASS][7] -> [DMESG-WARN][8] ([i915#180]) +2 similar issues
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl6/igt@gem_ctx_isolation@preservation-s3@bcs0.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@gem_ctx_isolation@preservation-s3@bcs0.html

  * igt@gem_ctx_persistence@engines-queued:
    - shard-snb:          NOTRUN -> [SKIP][9] ([fdo#109271] / [i915#1099]) +2 similar issues
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@gem_ctx_persistence@engines-queued.html

  * igt@gem_exec_fair@basic-flow@rcs0:
    - shard-skl:          NOTRUN -> [SKIP][10] ([fdo#109271]) +72 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@gem_exec_fair@basic-flow@rcs0.html

  * igt@gem_exec_fair@basic-none-share@rcs0:
    - shard-apl:          [PASS][11] -> [SKIP][12] ([fdo#109271])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl3/igt@gem_exec_fair@basic-none-share@rcs0.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@gem_exec_fair@basic-none-share@rcs0.html

  * igt@gem_exec_fair@basic-none-solo@rcs0:
    - shard-kbl:          [PASS][13] -> [FAIL][14] ([i915#2842])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl6/igt@gem_exec_fair@basic-none-solo@rcs0.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl1/igt@gem_exec_fair@basic-none-solo@rcs0.html

  * igt@gem_exec_fair@basic-none@vecs0:
    - shard-apl:          NOTRUN -> [FAIL][15] ([i915#2842] / [i915#3468])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@gem_exec_fair@basic-none@vecs0.html

  * igt@gem_exec_fair@basic-pace@vecs0:
    - shard-tglb:         [PASS][16] -> [FAIL][17] ([i915#2842]) +2 similar issues
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-tglb3/igt@gem_exec_fair@basic-pace@vecs0.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-tglb2/igt@gem_exec_fair@basic-pace@vecs0.html

  * igt@gem_exec_reloc@basic-wide-active@rcs0:
    - shard-snb:          NOTRUN -> [FAIL][18] ([i915#2389]) +2 similar issues
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@gem_exec_reloc@basic-wide-active@rcs0.html

  * igt@gem_exec_schedule@semaphore-codependency:
    - shard-snb:          NOTRUN -> [SKIP][19] ([fdo#109271]) +265 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@gem_exec_schedule@semaphore-codependency.html

  * igt@gem_userptr_blits@input-checking:
    - shard-apl:          NOTRUN -> [DMESG-WARN][20] ([i915#3002])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@gem_userptr_blits@input-checking.html

  * igt@gem_userptr_blits@vma-merge:
    - shard-snb:          NOTRUN -> [FAIL][21] ([i915#2724])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb6/igt@gem_userptr_blits@vma-merge.html

  * igt@gem_workarounds@suspend-resume:
    - shard-apl:          [PASS][22] -> [DMESG-WARN][23] ([i915#180]) +2 similar issues
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl1/igt@gem_workarounds@suspend-resume.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl6/igt@gem_workarounds@suspend-resume.html

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-kbl:          NOTRUN -> [SKIP][24] ([fdo#109271] / [i915#658])
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@i915_pm_dc@dc3co-vpb-simulation.html

  * igt@i915_pm_rpm@system-suspend-modeset:
    - shard-skl:          [PASS][25] -> [INCOMPLETE][26] ([i915#151])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl2/igt@i915_pm_rpm@system-suspend-modeset.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl9/igt@i915_pm_rpm@system-suspend-modeset.html

  * igt@i915_selftest@live@gt_pm:
    - shard-skl:          NOTRUN -> [DMESG-FAIL][27] ([i915#1886] / [i915#2291])
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@i915_selftest@live@gt_pm.html

  * igt@kms_big_fb@x-tiled-32bpp-rotate-180:
    - shard-glk:          [PASS][28] -> [DMESG-WARN][29] ([i915#118] / [i915#95])
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk4/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk8/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html

  * igt@kms_chamelium@hdmi-hpd-for-each-pipe:
    - shard-kbl:          NOTRUN -> [SKIP][30] ([fdo#109271] / [fdo#111827]) +3 similar issues
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@kms_chamelium@hdmi-hpd-for-each-pipe.html

  * igt@kms_chamelium@hdmi-mode-timings:
    - shard-snb:          NOTRUN -> [SKIP][31] ([fdo#109271] / [fdo#111827]) +15 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb6/igt@kms_chamelium@hdmi-mode-timings.html

  * igt@kms_color_chamelium@pipe-a-ctm-blue-to-red:
    - shard-iclb:         NOTRUN -> [SKIP][32] ([fdo#109284] / [fdo#111827])
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_color_chamelium@pipe-a-ctm-blue-to-red.html

  * igt@kms_color_chamelium@pipe-d-ctm-green-to-red:
    - shard-skl:          NOTRUN -> [SKIP][33] ([fdo#109271] / [fdo#111827]) +5 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_color_chamelium@pipe-d-ctm-green-to-red.html

  * igt@kms_color_chamelium@pipe-invalid-degamma-lut-sizes:
    - shard-apl:          NOTRUN -> [SKIP][34] ([fdo#109271] / [fdo#111827]) +10 similar issues
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_color_chamelium@pipe-invalid-degamma-lut-sizes.html

  * igt@kms_content_protection@atomic-dpms:
    - shard-kbl:          NOTRUN -> [TIMEOUT][35] ([i915#1319])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_content_protection@atomic-dpms.html

  * igt@kms_content_protection@legacy:
    - shard-iclb:         NOTRUN -> [SKIP][36] ([fdo#109300] / [fdo#111066])
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_content_protection@legacy.html

  * igt@kms_cursor_crc@pipe-d-cursor-suspend:
    - shard-kbl:          NOTRUN -> [SKIP][37] ([fdo#109271]) +66 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_cursor_crc@pipe-d-cursor-suspend.html

  * igt@kms_cursor_legacy@flip-vs-cursor-varying-size:
    - shard-skl:          [PASS][38] -> [FAIL][39] ([i915#2346])
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl1/igt@kms_cursor_legacy@flip-vs-cursor-varying-size.html
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl3/igt@kms_cursor_legacy@flip-vs-cursor-varying-size.html

  * igt@kms_cursor_legacy@pipe-d-torture-bo:
    - shard-skl:          NOTRUN -> [SKIP][40] ([fdo#109271] / [i915#533])
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@kms_cursor_legacy@pipe-d-torture-bo.html

  * igt@kms_dp_tiled_display@basic-test-pattern-with-chamelium:
    - shard-iclb:         NOTRUN -> [SKIP][41] ([i915#3528])
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_dp_tiled_display@basic-test-pattern-with-chamelium.html

  * igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-xtiled:
    - shard-skl:          [PASS][42] -> [DMESG-WARN][43] ([i915#1982]) +1 similar issue
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl8/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-xtiled.html
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl8/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-xtiled.html

  * igt@kms_fbcon_fbt@fbc-suspend:
    - shard-apl:          [PASS][44] -> [INCOMPLETE][45] ([i915#180] / [i915#1982])
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl6/igt@kms_fbcon_fbt@fbc-suspend.html
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@kms_fbcon_fbt@fbc-suspend.html
    - shard-kbl:          [PASS][46] -> [INCOMPLETE][47] ([i915#155] / [i915#180] / [i915#636])
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl3/igt@kms_fbcon_fbt@fbc-suspend.html
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@kms_fbcon_fbt@fbc-suspend.html

  * igt@kms_flip@2x-dpms-vs-vblank-race:
    - shard-iclb:         NOTRUN -> [SKIP][48] ([fdo#109274])
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_flip@2x-dpms-vs-vblank-race.html

  * igt@kms_flip@flip-vs-suspend-interruptible@c-dp1:
    - shard-apl:          NOTRUN -> [DMESG-WARN][49] ([i915#180]) +3 similar issues
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@kms_flip@flip-vs-suspend-interruptible@c-dp1.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytilegen12rcccs:
    - shard-skl:          NOTRUN -> [SKIP][50] ([fdo#109271] / [i915#2672])
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytilegen12rcccs.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytilercccs:
    - shard-kbl:          NOTRUN -> [SKIP][51] ([fdo#109271] / [i915#2672])
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytilercccs.html

  * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-cur-indfb-draw-render:
    - shard-iclb:         NOTRUN -> [SKIP][52] ([fdo#109280])
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_frontbuffer_tracking@fbc-2p-primscrn-cur-indfb-draw-render.html

  * igt@kms_hdr@bpc-switch:
    - shard-skl:          NOTRUN -> [FAIL][53] ([i915#1188])
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl10/igt@kms_hdr@bpc-switch.html

  * igt@kms_hdr@bpc-switch-dpms:
    - shard-skl:          [PASS][54] -> [FAIL][55] ([i915#1188])
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl6/igt@kms_hdr@bpc-switch-dpms.html
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_hdr@bpc-switch-dpms.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-d-frame-sequence:
    - shard-kbl:          NOTRUN -> [SKIP][56] ([fdo#109271] / [i915#533])
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-d-frame-sequence.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-c:
    - shard-skl:          [PASS][57] -> [FAIL][58] ([i915#53])
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl5/igt@kms_pipe_crc_basic@read-crc-pipe-c.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl8/igt@kms_pipe_crc_basic@read-crc-pipe-c.html

  * igt@kms_plane_alpha_blend@pipe-a-alpha-basic:
    - shard-apl:          NOTRUN -> [FAIL][59] ([fdo#108145] / [i915#265]) +1 similar issue
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html

  * igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb:
    - shard-skl:          NOTRUN -> [FAIL][60] ([fdo#108145] / [i915#265]) +1 similar issue
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb.html

  * igt@kms_plane_alpha_blend@pipe-c-alpha-basic:
    - shard-kbl:          NOTRUN -> [FAIL][61] ([fdo#108145] / [i915#265])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_plane_alpha_blend@pipe-c-alpha-basic.html

  * igt@kms_plane_alpha_blend@pipe-c-alpha-transparent-fb:
    - shard-apl:          NOTRUN -> [FAIL][62] ([i915#265])
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_plane_alpha_blend@pipe-c-alpha-transparent-fb.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [PASS][63] -> [FAIL][64] ([fdo#108145] / [i915#265]) +1 similar issue
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl5/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl8/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-4:
    - shard-skl:          NOTRUN -> [SKIP][65] ([fdo#109271] / [i915#658]) +1 similar issue
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-4.html

  * igt@kms_psr2_sf@plane-move-sf-dmg-area-3:
    - shard-apl:          NOTRUN -> [SKIP][66] ([fdo#109271] / [i915#658]) +1 similar issue
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@kms_psr2_sf@plane-move-sf-dmg-area-3.html

  * igt@kms_psr@psr2_no_drrs:
    - shard-iclb:         [PASS][67] -> [SKIP][68] ([fdo#109441]) +1 similar issue
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb2/igt@kms_psr@psr2_no_drrs.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb4/igt@kms_psr@psr2_no_drrs.html

  * igt@kms_setmode@basic:
    - shard-snb:          NOTRUN -> [FAIL][69] ([i915#31])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@kms_setmode@basic.html

  * igt@kms_sysfs_edid_timing:
    - shard-apl:          NOTRUN -> [FAIL][70] ([IGT#2])
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_sysfs_edid_timing.html

  * igt@kms_vblank@pipe-d-ts-continuation-modeset-rpm:
    - shard-iclb:         NOTRUN -> [SKIP][71] ([fdo#109278])
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_vblank@pipe-d-ts-continuation-modeset-rpm.html

  * igt@kms_vblank@pipe-d-wait-idle:
    - shard-apl:          NOTRUN -> [SKIP][72] ([fdo#109271] / [i915#533]) +1 similar issue
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@kms_vblank@pipe-d-wait-idle.html

  * igt@kms_writeback@writeback-invalid-parameters:
    - shard-kbl:          NOTRUN -> [SKIP][73] ([fdo#109271] / [i915#2437])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_writeback@writeback-invalid-parameters.html

  * igt@nouveau_crc@pipe-a-source-rg:
    - shard-iclb:         NOTRUN -> [SKIP][74] ([i915#2530])
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@nouveau_crc@pipe-a-source-rg.html

  * igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame:
    - shard-apl:          NOTRUN -> [SKIP][75] ([fdo#109271]) +109 similar issues
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame.html

  * igt@prime_vgem@sync@vcs0:
    - shard-skl:          [PASS][76] -> [INCOMPLETE][77] ([i915#409])
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl4/igt@prime_vgem@sync@vcs0.html
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl5/igt@prime_vgem@sync@vcs0.html

  * igt@sysfs_clients@fair-3:
    - shard-skl:          NOTRUN -> [SKIP][78] ([fdo#109271] / [i915#2994])
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@sysfs_clients@fair-3.html

  * igt@sysfs_clients@recycle:
    - shard-apl:          NOTRUN -> [SKIP][79] ([fdo#109271] / [i915#2994])
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@sysfs_clients@recycle.html

  * igt@sysfs_clients@sema-10:
    - shard-kbl:          NOTRUN -> [SKIP][80] ([fdo#109271] / [i915#2994])
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@sysfs_clients@sema-10.html

  
#### Possible fixes ####

  * igt@gem_exec_balancer@semaphore:
    - shard-glk:          [DMESG-WARN][81] ([i915#118] / [i915#95]) -> [PASS][82] +2 similar issues
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk4/igt@gem_exec_balancer@semaphore.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk2/igt@gem_exec_balancer@semaphore.html

  * igt@gem_exec_fair@basic-none@vcs0:
    - shard-kbl:          [FAIL][83] ([i915#2842]) -> [PASS][84] +1 similar issue
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@gem_exec_fair@basic-none@vcs0.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@gem_exec_fair@basic-none@vcs0.html

  * igt@gem_exec_fair@basic-pace-share@rcs0:
    - shard-tglb:         [FAIL][85] ([i915#2842]) -> [PASS][86] +1 similar issue
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-tglb2/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-tglb8/igt@gem_exec_fair@basic-pace-share@rcs0.html

  * igt@gem_exec_fair@basic-pace@rcs0:
    - shard-glk:          [FAIL][87] ([i915#2842]) -> [PASS][88]
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk3/igt@gem_exec_fair@basic-pace@rcs0.html
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk7/igt@gem_exec_fair@basic-pace@rcs0.html

  * igt@gem_exec_fair@basic-sync@rcs0:
    - shard-kbl:          [SKIP][89] ([fdo#109271]) -> [PASS][90]
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl3/igt@gem_exec_fair@basic-sync@rcs0.html
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl6/igt@gem_exec_fair@basic-sync@rcs0.html

  * igt@i915_selftest@live@gt_pm:
    - shard-glk:          [DMESG-FAIL][91] ([i915#1886] / [i915#2291]) -> [PASS][92]
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk2/igt@i915_selftest@live@gt_pm.html
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk3/igt@i915_selftest@live@gt_pm.html

  * igt@kms_cursor_legacy@flip-vs-cursor-legacy:
    - shard-skl:          [FAIL][93] ([i915#2346]) -> [PASS][94]
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl1/igt@kms_cursor_legacy@flip-vs-cursor-legacy.html
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl3/igt@kms_cursor_legacy@flip-vs-cursor-legacy.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@c-edp1:
    - shard-skl:          [FAIL][95] ([i915#79]) -> [PASS][96]
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl6/igt@kms_flip@flip-vs-expired-vblank-interruptible@c-edp1.html
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@c-edp1.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-kbl:          [DMESG-WARN][97] ([i915#180]) -> [PASS][98] +3 similar issues
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@kms_hdr@bpc-switch-suspend.html
   [98]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min:
    - shard-skl:          [FAIL][99] ([fdo#108145] / [i915#265]) -> [PASS][100]
   [99]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl2/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
   [100]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl4/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html

  * igt@kms_psr2_su@page_flip:
    - shard-iclb:         [SKIP][101] ([fdo#109642] / [fdo#111068] / [i915#658]) -> [PASS][102]
   [101]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb6/igt@kms_psr2_su@page_flip.html
   [102]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_psr2_su@page_flip.html

  * igt@kms_psr@psr2_suspend:
    - shard-iclb:         [SKIP][103] ([fdo#109441]) -> [PASS][104] +2 similar issues
   [103]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb5/igt@kms_psr@psr2_suspend.html
   [104]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_psr@psr2_suspend.html

  * igt@kms_vblank@pipe-b-ts-continuation-dpms-rpm:
    - shard-tglb:         [DMESG-WARN][105] ([i915#2411] / [i915#2868]) -> [PASS][106]
   [105]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-tglb5/igt@kms_vblank@pipe-b-ts-continuation-dpms-rpm.html
   [106]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-tglb3/igt@kms_vblank@pipe-b-ts-continuation-dpms-rpm.html

  * igt@perf@blocking:
    - shard-skl:          [FAIL][107] ([i915#1542]) -> [PASS][108] +1 similar issue
   [107]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl2/igt@perf@blocking.html
   [108]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl4/igt@perf@blocking.html

  * igt@perf@polling-parameterized:
    - shard-glk:          [FAIL][109] ([i915#1542]) -> [PASS][110]
   [109]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk9/igt@perf@polling-parameterized.html
   [110]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk4/igt@perf@polling-parameterized.html

  * igt@prime_vgem@sync@rcs0:
    - shard-iclb:         [INCOMPLETE][111] ([i915#409]) -> [PASS][112]
   [111]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb3/igt@prime_vgem@sync@rcs0.html
   [112]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@prime_vgem@sync@rcs0.html

  
#### Warnings ####

  * igt@gem_exec_fair@basic-none-rrul@rcs0:
    - shard-iclb:         [FAIL][113] ([i915#2842]) -> [FAIL][114] ([i915#2852])
   [113]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb5/igt@gem_exec_fair@basic-none-rrul@rcs0.html
   [114]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb5/igt@gem_exec_fair@basic-none-rrul@rcs0.html

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-iclb:         [SKIP][115] ([i915#588]) -> [SKIP][116] ([i915#658])
   [115]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [116]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb4/igt@i915_pm_dc@dc3co-vpb-simulation.html

  * igt@i915_pm_rc6_residency@rc6-fence:
    - shard-iclb:         [WARN][117] ([i915#1804] / [i915#2684]) -> [WARN][118] ([i915#2684])
   [117]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb3/igt@i915_pm_rc6_residency@rc6-fence.html
   [118]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@i915_pm_rc6_residency@rc6-fence.html

  * igt@kms_dp_dsc@basic-dsc-enable-edp:
    - shard-iclb:         [SKIP][119] ([fdo#109349]) -> [DMESG-WARN][120] ([i915#1226])
   [119]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb6/igt@kms_dp_dsc@basic-dsc-enable-edp.html
   [120]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_dp_dsc@basic-dsc-enable-edp.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1:
    - shard-skl:          [FAIL][121] ([i915#79]) -> [DMESG-WARN][122] ([i915#1982])
   [121]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl6/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html
   [122]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-5:
    - shard-iclb:         [SKIP][123] ([i915#658]) -> [SKIP][124] ([i915#2920]) +1 similar issue
   [123]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb6/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-5.html
   [124]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-5.html

  * igt@kms_psr2_sf@plane-move-sf-dmg-area-2:
    - shard-iclb:         [SKIP][125] ([i915#2920]) -> [SKIP][126] ([i915#658])
   [125]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb2/igt@kms_psr2_sf@plane-move-sf-dmg-area-2.html
   [126]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb4/igt@kms_psr2_sf@plane-move-sf-dmg-area-2.html

  * igt@runner@aborted:
    - shard-kbl:          ([FAIL][127], [FAIL][128], [FAIL][129], [FAIL][130], [FAIL][131], [FAIL][132], [FAIL][133], [FAIL][134]) ([i915#1436] / [i915#180] / [i915#1814] / [i915#2505] / [i915#3002] / [i915#3363]) -> ([FAIL][135], [FAIL][136], [FAIL][137], [FAIL][138], [FAIL][139]) ([i915#1436] / [i915#180] / [i915#1814] / [i915#3002] / [i915#3363] / [i915#92])
   [127]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@runner@aborted.html
   [128]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
   [129]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
   [130]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
   [131]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@runner@aborted.html
   [132]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@runner@aborted.html
   [133]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
   [134]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl6/igt@runner@aborted.html
   [135]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl2/igt@runner@aborted.html
   [136]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@runner@aborted.html
   [137]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@runner@aborted.html
   [138]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@runner@aborted.html
   [139]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@runner@aborted.html
    - shard-iclb:         ([FAIL][140], [FAIL][141], [FAIL][142]) ([i915#2426] / [i915#3002] / [i915#409]) -> ([FAIL][143], [FAIL][144], [FAIL][145], [FAIL][146]) ([i915#1814] / [i915#3002])
   [140]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb3/igt@runner@aborted.html
   [141]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb7/igt@runner@aborted.html
   [142]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb5/igt@runner@aborted.html
   [143]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb6/igt@runner@aborted.html
   [144]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@runner@aborted.html
   [145]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@runner@aborted.html
   [146]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@runner@aborted.html
    - shard-apl:          ([FAIL][147], [FAIL][148], [FAIL][149], [FAIL][150]) ([i915#180] / [i915#1814] / [i915#3002] / [i915#3363]) -> ([FAIL][151], [FAIL][152], [FAIL][153], [FAIL][154], [FAIL][155], [FAIL][156], [FAIL][157], [FAIL][158], [FAIL][159]) ([fdo#109271] / [i915#180] / [i915#1814] / [i915#3002] / [i915#3363])
   [147]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl3/igt@runner@aborted.html
   [148]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl6/igt@runner@aborted.html
   [149]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl2/igt@runner@aborted.html
   [150]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl3/igt@runner@aborted.html
   [151]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@runner@aborted.html
   [152]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@runner@aborted.html
   [153]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@runner@aborted.html

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/index.html

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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [Intel-gfx] [PATCH 0/3] Update firmware to v62.0.0
  2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
@ 2021-06-16 15:16   ` Mike Lothian
  -1 siblings, 0 replies; 19+ messages in thread
From: Mike Lothian @ 2021-06-16 15:16 UTC (permalink / raw)
  To: Matthew Brost; +Cc: Intel Graphics Development, Maling list - DRI developers

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Hi

Is there a place where we can download these new firmware images?

Cheers

Mike

On Wed, 16 Jun 2021 at 00:55, Matthew Brost <matthew.brost@intel.com> wrote:

> As part of enabling GuC submission [1] we need to update to the latest
> and greatest firmware. This series does that. All backwards
> compatibility breaking changes squashed into a single patch #2. Same
> series sent to trybot [2] forcing GuC to be enabled to ensure we haven't
> broke something.
>
> v2: Address comments, looking for remaning RBs so patches can be
> squashed and sent for CI
> v3: Delete a few unused defines, squash patches
> v4: Add values back into kernel doc, fix docs warning
>
> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
>
> [1] https://patchwork.freedesktop.org/series/89844
> [2] https://patchwork.freedesktop.org/series/91341
>
> Michal Wajdeczko (3):
>   drm/i915/guc: Introduce unified HXG messages
>   drm/i915/guc: Update firmware to v62.0.0
>   drm/i915/doc: Include GuC ABI documentation
>
>  Documentation/gpu/i915.rst                    |   8 +
>  .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
>  .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
>  .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
>  .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 +++++++++++
>  drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
>  drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
>  drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
>  drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
>  drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
>  13 files changed, 748 insertions(+), 421 deletions(-)
>
> --
> 2.28.0
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>

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^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [Intel-gfx] [PATCH 0/3] Update firmware to v62.0.0
@ 2021-06-16 15:16   ` Mike Lothian
  0 siblings, 0 replies; 19+ messages in thread
From: Mike Lothian @ 2021-06-16 15:16 UTC (permalink / raw)
  To: Matthew Brost; +Cc: Intel Graphics Development, Maling list - DRI developers


[-- Attachment #1.1: Type: text/plain, Size: 2043 bytes --]

Hi

Is there a place where we can download these new firmware images?

Cheers

Mike

On Wed, 16 Jun 2021 at 00:55, Matthew Brost <matthew.brost@intel.com> wrote:

> As part of enabling GuC submission [1] we need to update to the latest
> and greatest firmware. This series does that. All backwards
> compatibility breaking changes squashed into a single patch #2. Same
> series sent to trybot [2] forcing GuC to be enabled to ensure we haven't
> broke something.
>
> v2: Address comments, looking for remaning RBs so patches can be
> squashed and sent for CI
> v3: Delete a few unused defines, squash patches
> v4: Add values back into kernel doc, fix docs warning
>
> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
>
> [1] https://patchwork.freedesktop.org/series/89844
> [2] https://patchwork.freedesktop.org/series/91341
>
> Michal Wajdeczko (3):
>   drm/i915/guc: Introduce unified HXG messages
>   drm/i915/guc: Update firmware to v62.0.0
>   drm/i915/doc: Include GuC ABI documentation
>
>  Documentation/gpu/i915.rst                    |   8 +
>  .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
>  .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
>  .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
>  .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 +++++++++++
>  drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
>  drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
>  drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
>  drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
>  drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
>  13 files changed, 748 insertions(+), 421 deletions(-)
>
> --
> 2.28.0
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>

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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0
  2021-06-16  0:13   ` [Intel-gfx] " Matthew Brost
@ 2021-06-17  1:41     ` Daniele Ceraolo Spurio
  -1 siblings, 0 replies; 19+ messages in thread
From: Daniele Ceraolo Spurio @ 2021-06-17  1:41 UTC (permalink / raw)
  To: Matthew Brost, intel-gfx, dri-devel; +Cc: john.c.harrison, Michal.Wajdeczko



On 6/15/2021 5:13 PM, Matthew Brost wrote:
> From: Michal Wajdeczko <michal.wajdeczko@intel.com>
>
> Most of the changes to the 62.0.0 firmware revolved around CTB
> communication channel. Conform to the new (stable) CTB protocol.
>
> v2:
>   (Michal)
>    Add values back to kernel DOC for actions
>   (Docs)
>    Add 'CT buffer' back in to fix warning
>
> Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
> ---
>   .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
>   .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
>   .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
>   drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
>   drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
>   drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
>   drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
>   11 files changed, 527 insertions(+), 421 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> index 90efef8a73e4..2d6198e63ebe 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> @@ -6,6 +6,113 @@
>   #ifndef _ABI_GUC_ACTIONS_ABI_H
>   #define _ABI_GUC_ACTIONS_ABI_H
>   
> +/**
> + * DOC: HOST2GUC_REGISTER_CTB
> + *
> + * This message is used as part of the `CTB based communication`_ setup.
> + *
> + * This message must be sent as `MMIO HXG Message`_.
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 27:16 | DATA0 = MBZ                                                  |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_REGISTER_CTB` = 0x4505        |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 | 31:12 | RESERVED = MBZ                                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | **TYPE** - type for the `CT Buffer`_                         |
> + *  |   |       |                                                              |
> + *  |   |       |   - _`GUC_CTB_TYPE_HOST2GUC` = 0                             |
> + *  |   |       |   - _`GUC_CTB_TYPE_GUC2HOST` = 1                             |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | **SIZE** - size of the `CT Buffer`_ in 4K units minus 1      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 2 |  31:0 | **DESC_ADDR** - GGTT address of the `CTB Descriptor`_        |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 3 |  31:0 | **BUFF_ADDF** - GGTT address of the `CT Buffer`_             |
> + *  +---+-------+--------------------------------------------------------------+
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  27:0 | DATA0 = MBZ                                                  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +#define GUC_ACTION_HOST2GUC_REGISTER_CTB		0x4505
> +
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 3u)
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_0_MBZ		GUC_HXG_REQUEST_MSG_0_DATA0
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_MBZ		(0xfffff << 12)
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
> +#define   GUC_CTB_TYPE_HOST2GUC				0u
> +#define   GUC_CTB_TYPE_GUC2HOST				1u
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE	(0xff << 0)
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
> +
> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_LEN		GUC_HXG_RESPONSE_MSG_MIN_LEN
> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
> +
> +/**
> + * DOC: HOST2GUC_DEREGISTER_CTB
> + *
> + * This message is used as part of the `CTB based communication`_ teardown.
> + *
> + * This message must be sent as `MMIO HXG Message`_.
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 27:16 | DATA0 = MBZ                                                  |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_DEREGISTER_CTB` = 0x4506      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 | 31:12 | RESERVED = MBZ                                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | **TYPE** - type of the `CT Buffer`_                          |
> + *  |   |       |                                                              |
> + *  |   |       | see `GUC_ACTION_HOST2GUC_REGISTER_CTB`_                      |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | RESERVED = MBZ                                               |
> + *  +---+-------+--------------------------------------------------------------+
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  27:0 | DATA0 = MBZ                                                  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +#define GUC_ACTION_HOST2GUC_DEREGISTER_CTB		0x4506
> +
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 1u)
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_0_MBZ	GUC_HXG_REQUEST_MSG_0_DATA0
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ	(0xfffff << 12)
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ2	(0xff << 0)
> +
> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_LEN	GUC_HXG_RESPONSE_MSG_MIN_LEN
> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
> +
> +/* legacy definitions */
> +
>   enum intel_guc_action {
>   	INTEL_GUC_ACTION_DEFAULT = 0x0,
>   	INTEL_GUC_ACTION_REQUEST_PREEMPTION = 0x2,
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
> index d38935f47ecf..29fc93a8b5be 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
> @@ -7,6 +7,110 @@
>   #define _ABI_GUC_COMMUNICATION_CTB_ABI_H
>   
>   #include <linux/types.h>
> +#include <linux/build_bug.h>
> +
> +#include "guc_messages_abi.h"
> +
> +/**
> + * DOC: CT Buffer
> + *
> + * Circular buffer used to send / receive CTBs (H2G or G2H)

nit: the CTB is not used to send CTBs, but to send messages. Can fix 
while pushing.

For the rest I couldn't spot anything that didn't match what was already 
reviewed, so:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

Daniele

> + */
> +
> +/**
> + * DOC: CTB Descriptor
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |  31:0 | **HEAD** - offset (in dwords) to the last dword that was     |
> + *  |   |       | read from the `CT Buffer`_.                                  |
> + *  |   |       | It can only be updated by the receiver.                      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 |  31:0 | **TAIL** - offset (in dwords) to the last dword that was     |
> + *  |   |       | written to the `CT Buffer`_.                                 |
> + *  |   |       | It can only be updated by the sender.                        |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 2 |  31:0 | **STATUS** - status of the CTB                               |
> + *  |   |       |                                                              |
> + *  |   |       |   - _`GUC_CTB_STATUS_NO_ERROR` = 0 (normal operation)        |
> + *  |   |       |   - _`GUC_CTB_STATUS_OVERFLOW` = 1 (head/tail too large)     |
> + *  |   |       |   - _`GUC_CTB_STATUS_UNDERFLOW` = 2 (truncated message)      |
> + *  |   |       |   - _`GUC_CTB_STATUS_MISMATCH` = 4 (head/tail modified)      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  |...|       | RESERVED = MBZ                                               |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 15|  31:0 | RESERVED = MBZ                                               |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +
> +struct guc_ct_buffer_desc {
> +	u32 head;
> +	u32 tail;
> +	u32 status;
> +#define GUC_CTB_STATUS_NO_ERROR				0
> +#define GUC_CTB_STATUS_OVERFLOW				(1 << 0)
> +#define GUC_CTB_STATUS_UNDERFLOW			(1 << 1)
> +#define GUC_CTB_STATUS_MISMATCH				(1 << 2)
> +	u32 reserved[13];
> +} __packed;
> +static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
> +
> +/**
> + * DOC: CTB Message
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 | 31:16 | **FENCE** - message identifier                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 15:12 | **FORMAT** - format of the CTB message                       |
> + *  |   |       |  - _`GUC_CTB_FORMAT_HXG` = 0 - see `CTB HXG Message`_        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | **RESERVED**                                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | **NUM_DWORDS** - length of the CTB message (w/o header)      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 |  31:0 | optional (depends on FORMAT)                                 |
> + *  +---+-------+                                                              |
> + *  |...|       |                                                              |
> + *  +---+-------+                                                              |
> + *  | n |  31:0 |                                                              |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_CTB_MSG_MIN_LEN			1u
> +#define GUC_CTB_MSG_MAX_LEN			256u
> +#define GUC_CTB_MSG_0_FENCE			(0xffff << 16)
> +#define GUC_CTB_MSG_0_FORMAT			(0xf << 12)
> +#define   GUC_CTB_FORMAT_HXG			0u
> +#define GUC_CTB_MSG_0_RESERVED			(0xf << 8)
> +#define GUC_CTB_MSG_0_NUM_DWORDS		(0xff << 0)
> +
> +/**
> + * DOC: CTB HXG Message
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 | 31:16 | FENCE                                                        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 15:12 | FORMAT = GUC_CTB_FORMAT_HXG_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | RESERVED = MBZ                                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG message  |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+  |                                                        |  |
> + *  |...|       |  |  Embedded `HXG Message`_                               |  |
> + *  +---+-------+  |                                                        |  |
> + *  | n |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_CTB_HXG_MSG_MIN_LEN		(GUC_CTB_MSG_MIN_LEN + GUC_HXG_MSG_MIN_LEN)
> +#define GUC_CTB_HXG_MSG_MAX_LEN		GUC_CTB_MSG_MAX_LEN
>   
>   /**
>    * DOC: CTB based communication
> @@ -60,28 +164,6 @@
>    * - **flags**, holds various bits to control message handling
>    */
>   
> -/*
> - * Describes single command transport buffer.
> - * Used by both guc-master and clients.
> - */
> -struct guc_ct_buffer_desc {
> -	u32 addr;		/* gfx address */
> -	u64 host_private;	/* host private data */
> -	u32 size;		/* size in bytes */
> -	u32 head;		/* offset updated by GuC*/
> -	u32 tail;		/* offset updated by owner */
> -	u32 is_in_error;	/* error indicator */
> -	u32 reserved1;
> -	u32 reserved2;
> -	u32 owner;		/* id of the channel owner */
> -	u32 owner_sub_id;	/* owner-defined field for extra tracking */
> -	u32 reserved[5];
> -} __packed;
> -
> -/* Type of command transport buffer */
> -#define INTEL_GUC_CT_BUFFER_TYPE_SEND	0x0u
> -#define INTEL_GUC_CT_BUFFER_TYPE_RECV	0x1u
> -
>   /*
>    * Definition of the command transport message header (DW0)
>    *
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
> index be066a62e9e0..bbf1ddb77434 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
> @@ -7,46 +7,43 @@
>   #define _ABI_GUC_COMMUNICATION_MMIO_ABI_H
>   
>   /**
> - * DOC: MMIO based communication
> + * DOC: GuC MMIO based communication
>    *
> - * The MMIO based communication between Host and GuC uses software scratch
> - * registers, where first register holds data treated as message header,
> - * and other registers are used to hold message payload.
> + * The MMIO based communication between Host and GuC relies on special
> + * hardware registers which format could be defined by the software
> + * (so called scratch registers).
>    *
> - * For Gen9+, GuC uses software scratch registers 0xC180-0xC1B8,
> - * but no H2G command takes more than 8 parameters and the GuC FW
> - * itself uses an 8-element array to store the H2G message.
> + * Each MMIO based message, both Host to GuC (H2G) and GuC to Host (G2H)
> + * messages, which maximum length depends on number of available scratch
> + * registers, is directly written into those scratch registers.
>    *
> - *      +-----------+---------+---------+---------+
> - *      |  MMIO[0]  | MMIO[1] |   ...   | MMIO[n] |
> - *      +-----------+---------+---------+---------+
> - *      | header    |      optional payload       |
> - *      +======+====+=========+=========+=========+
> - *      | 31:28|type|         |         |         |
> - *      +------+----+         |         |         |
> - *      | 27:16|data|         |         |         |
> - *      +------+----+         |         |         |
> - *      |  15:0|code|         |         |         |
> - *      +------+----+---------+---------+---------+
> + * For Gen9+, there are 16 software scratch registers 0xC180-0xC1B8,
> + * but no H2G command takes more than 4 parameters and the GuC firmware
> + * itself uses an 4-element array to store the H2G message.
>    *
> - * The message header consists of:
> + * For Gen11+, there are additional 4 registers 0x190240-0x19024C, which
> + * are, regardless on lower count, preferred over legacy ones.
>    *
> - * - **type**, indicates message type
> - * - **code**, indicates message code, is specific for **type**
> - * - **data**, indicates message data, optional, depends on **code**
> - *
> - * The following message **types** are supported:
> - *
> - * - **REQUEST**, indicates Host-to-GuC request, requested GuC action code
> - *   must be priovided in **code** field. Optional action specific parameters
> - *   can be provided in remaining payload registers or **data** field.
> - *
> - * - **RESPONSE**, indicates GuC-to-Host response from earlier GuC request,
> - *   action response status will be provided in **code** field. Optional
> - *   response data can be returned in remaining payload registers or **data**
> - *   field.
> + * The MMIO based communication is mainly used during driver initialization
> + * phase to setup the `CTB based communication`_ that will be used afterwards.
>    */
>   
> -#define GUC_MAX_MMIO_MSG_LEN		8
> +#define GUC_MAX_MMIO_MSG_LEN		4
> +
> +/**
> + * DOC: MMIO HXG Message
> + *
> + * Format of the MMIO messages follows definitions of `HXG Message`_.
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+  |                                                        |  |
> + *  |...|       |  |  Embedded `HXG Message`_                               |  |
> + *  +---+-------+  |                                                        |  |
> + *  | n |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
>   
>   #endif /* _ABI_GUC_COMMUNICATION_MMIO_ABI_H */
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> index f147cb389a20..6661dcb02239 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> @@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
>   
>   	BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
>   	BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
> -	BUILD_BUG_ON(!DPC_BUFFER_SIZE);
> -	BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
> -	BUILD_BUG_ON(!ISR_BUFFER_SIZE);
> -	BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
> +	BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
> +	BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
>   
>   	BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
>   			(GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
> -	BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
> -			(GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
> -	BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
> -			(GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
> +	BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
> +			(GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
>   
>   	flags = GUC_LOG_VALID |
>   		GUC_LOG_NOTIFY_ON_HALF_FULL |
>   		FLAG |
>   		((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
> -		((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
> -		((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
> +		((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
>   		(offset << GUC_LOG_BUF_ADDR_SHIFT);
>   
>   	#undef UNIT
> @@ -376,29 +371,27 @@ void intel_guc_fini(struct intel_guc *guc)
>   /*
>    * This function implements the MMIO based host to GuC interface.
>    */
> -int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
> +int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request, u32 len,
>   			u32 *response_buf, u32 response_buf_size)
>   {
> +	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
>   	struct intel_uncore *uncore = guc_to_gt(guc)->uncore;
> -	u32 status;
> +	u32 header;
>   	int i;
>   	int ret;
>   
>   	GEM_BUG_ON(!len);
>   	GEM_BUG_ON(len > guc->send_regs.count);
>   
> -	/* We expect only action code */
> -	GEM_BUG_ON(*action & ~INTEL_GUC_MSG_CODE_MASK);
> -
> -	/* If CT is available, we expect to use MMIO only during init/fini */
> -	GEM_BUG_ON(*action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
> -		   *action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, request[0]) != GUC_HXG_ORIGIN_HOST);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, request[0]) != GUC_HXG_TYPE_REQUEST);
>   
>   	mutex_lock(&guc->send_mutex);
>   	intel_uncore_forcewake_get(uncore, guc->send_regs.fw_domains);
>   
> +retry:
>   	for (i = 0; i < len; i++)
> -		intel_uncore_write(uncore, guc_send_reg(guc, i), action[i]);
> +		intel_uncore_write(uncore, guc_send_reg(guc, i), request[i]);
>   
>   	intel_uncore_posting_read(uncore, guc_send_reg(guc, i - 1));
>   
> @@ -410,30 +403,74 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
>   	 */
>   	ret = __intel_wait_for_register_fw(uncore,
>   					   guc_send_reg(guc, 0),
> -					   INTEL_GUC_MSG_TYPE_MASK,
> -					   INTEL_GUC_MSG_TYPE_RESPONSE <<
> -					   INTEL_GUC_MSG_TYPE_SHIFT,
> -					   10, 10, &status);
> -	/* If GuC explicitly returned an error, convert it to -EIO */
> -	if (!ret && !INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(status))
> -		ret = -EIO;
> +					   GUC_HXG_MSG_0_ORIGIN,
> +					   FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
> +						      GUC_HXG_ORIGIN_GUC),
> +					   10, 10, &header);
> +	if (unlikely(ret)) {
> +timeout:
> +		drm_err(&i915->drm, "mmio request %#x: no reply %x\n",
> +			request[0], header);
> +		goto out;
> +	}
>   
> -	if (ret) {
> -		DRM_ERROR("MMIO: GuC action %#x failed with error %d %#x\n",
> -			  action[0], ret, status);
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_BUSY) {
> +#define done ({ header = intel_uncore_read(uncore, guc_send_reg(guc, 0)); \
> +		FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) != GUC_HXG_ORIGIN_GUC || \
> +		FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_NO_RESPONSE_BUSY; })
> +
> +		ret = wait_for(done, 1000);
> +		if (unlikely(ret))
> +			goto timeout;
> +		if (unlikely(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) !=
> +				       GUC_HXG_ORIGIN_GUC))
> +			goto proto;
> +#undef done
> +	}
> +
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_RETRY) {
> +		u32 reason = FIELD_GET(GUC_HXG_RETRY_MSG_0_REASON, header);
> +
> +		drm_dbg(&i915->drm, "mmio request %#x: retrying, reason %u\n",
> +			request[0], reason);
> +		goto retry;
> +	}
> +
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_RESPONSE_FAILURE) {
> +		u32 hint = FIELD_GET(GUC_HXG_FAILURE_MSG_0_HINT, header);
> +		u32 error = FIELD_GET(GUC_HXG_FAILURE_MSG_0_ERROR, header);
> +
> +		drm_err(&i915->drm, "mmio request %#x: failure %x/%u\n",
> +			request[0], error, hint);
> +		ret = -ENXIO;
> +		goto out;
> +	}
> +
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
> +proto:
> +		drm_err(&i915->drm, "mmio request %#x: unexpected reply %#x\n",
> +			request[0], header);
> +		ret = -EPROTO;
>   		goto out;
>   	}
>   
>   	if (response_buf) {
> -		int count = min(response_buf_size, guc->send_regs.count - 1);
> +		int count = min(response_buf_size, guc->send_regs.count);
>   
> -		for (i = 0; i < count; i++)
> +		GEM_BUG_ON(!count);
> +
> +		response_buf[0] = header;
> +
> +		for (i = 1; i < count; i++)
>   			response_buf[i] = intel_uncore_read(uncore,
> -							    guc_send_reg(guc, i + 1));
> -	}
> +							    guc_send_reg(guc, i));
>   
> -	/* Use data from the GuC response as our return value */
> -	ret = INTEL_GUC_MSG_TO_DATA(status);
> +		/* Use number of copied dwords as our return value */
> +		ret = count;
> +	} else {
> +		/* Use data from the GuC response as our return value */
> +		ret = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header);
> +	}
>   
>   out:
>   	intel_uncore_forcewake_put(uncore, guc->send_regs.fw_domains);
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> index 9abfbc6edbd6..b82145652d57 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> @@ -24,10 +24,6 @@
>    *      +---------------------------------------+
>    *      | guc_gt_system_info                    |
>    *      +---------------------------------------+
> - *      | guc_clients_info                      |
> - *      +---------------------------------------+
> - *      | guc_ct_pool_entry[size]               |
> - *      +---------------------------------------+
>    *      | padding                               |
>    *      +---------------------------------------+ <== 4K aligned
>    *      | private data                          |
> @@ -39,8 +35,6 @@ struct __guc_ads_blob {
>   	struct guc_ads ads;
>   	struct guc_policies policies;
>   	struct guc_gt_system_info system_info;
> -	struct guc_clients_info clients_info;
> -	struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
>   } __packed;
>   
>   static u32 guc_ads_private_data_size(struct intel_guc *guc)
> @@ -59,38 +53,15 @@ static u32 guc_ads_blob_size(struct intel_guc *guc)
>   	       guc_ads_private_data_size(guc);
>   }
>   
> -static void guc_policy_init(struct guc_policy *policy)
> -{
> -	policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
> -	policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
> -	policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
> -	policy->policy_flags = 0;
> -}
> -
>   static void guc_policies_init(struct guc_policies *policies)
>   {
> -	struct guc_policy *policy;
> -	u32 p, i;
> -
> -	policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
> -	policies->max_num_work_items = POLICY_MAX_NUM_WI;
> -
> -	for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
> -		for (i = 0; i < GUC_MAX_ENGINE_CLASSES; i++) {
> -			policy = &policies->policy[p][i];
> -
> -			guc_policy_init(policy);
> -		}
> -	}
> -
> +	policies->dpc_promote_time = GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
> +	policies->max_num_work_items = GLOBAL_POLICY_MAX_NUM_WI;
> +	/* Disable automatic resets as not yet supported. */
> +	policies->global_flags = GLOBAL_POLICY_DISABLE_ENGINE_RESET;
>   	policies->is_valid = 1;
>   }
>   
> -static void guc_ct_pool_entries_init(struct guc_ct_pool_entry *pool, u32 num)
> -{
> -	memset(pool, 0, num * sizeof(*pool));
> -}
> -
>   static void guc_mapping_table_init(struct intel_gt *gt,
>   				   struct guc_gt_system_info *system_info)
>   {
> @@ -178,17 +149,9 @@ static void __guc_ads_init(struct intel_guc *guc)
>   
>   	base = intel_guc_ggtt_offset(guc, guc->ads_vma);
>   
> -	/* Clients info  */
> -	guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
> -
> -	blob->clients_info.clients_num = 1;
> -	blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
> -	blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
> -
>   	/* ADS */
>   	blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
>   	blob->ads.gt_system_info = base + ptr_offset(blob, system_info);
> -	blob->ads.clients_info = base + ptr_offset(blob, clients_info);
>   
>   	/* Private Data */
>   	blob->ads.private_data = base + guc_ads_private_data_offset(guc);
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> index 8f7b148fef58..43409044528e 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> @@ -103,61 +103,66 @@ void intel_guc_ct_init_early(struct intel_guc_ct *ct)
>   static inline const char *guc_ct_buffer_type_to_str(u32 type)
>   {
>   	switch (type) {
> -	case INTEL_GUC_CT_BUFFER_TYPE_SEND:
> +	case GUC_CTB_TYPE_HOST2GUC:
>   		return "SEND";
> -	case INTEL_GUC_CT_BUFFER_TYPE_RECV:
> +	case GUC_CTB_TYPE_GUC2HOST:
>   		return "RECV";
>   	default:
>   		return "<invalid>";
>   	}
>   }
>   
> -static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc,
> -				    u32 cmds_addr, u32 size)
> +static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc)
>   {
>   	memset(desc, 0, sizeof(*desc));
> -	desc->addr = cmds_addr;
> -	desc->size = size;
> -	desc->owner = CTB_OWNER_HOST;
>   }
>   
> -static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb, u32 cmds_addr)
> +static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb)
>   {
> -	guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size);
> +	ctb->broken = false;
> +	guc_ct_buffer_desc_init(ctb->desc);
>   }
>   
>   static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb,
>   			       struct guc_ct_buffer_desc *desc,
> -			       u32 *cmds, u32 size)
> +			       u32 *cmds, u32 size_in_bytes)
>   {
> -	GEM_BUG_ON(size % 4);
> +	GEM_BUG_ON(size_in_bytes % 4);
>   
>   	ctb->desc = desc;
>   	ctb->cmds = cmds;
> -	ctb->size = size;
> +	ctb->size = size_in_bytes / 4;
>   
> -	guc_ct_buffer_reset(ctb, 0);
> +	guc_ct_buffer_reset(ctb);
>   }
>   
> -static int guc_action_register_ct_buffer(struct intel_guc *guc,
> -					 u32 desc_addr,
> -					 u32 type)
> +static int guc_action_register_ct_buffer(struct intel_guc *guc, u32 type,
> +					 u32 desc_addr, u32 buff_addr, u32 size)
>   {
> -	u32 action[] = {
> -		INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER,
> -		desc_addr,
> -		sizeof(struct guc_ct_buffer_desc),
> -		type
> +	u32 request[HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN] = {
> +		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
> +		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
> +		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_REGISTER_CTB),
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE, size / SZ_4K - 1) |
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE, type),
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR, desc_addr),
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR, buff_addr),
>   	};
>   
> -	/* Can't use generic send(), CT registration must go over MMIO */
> -	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
> +	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
> +	GEM_BUG_ON(size % SZ_4K);
> +
> +	/* CT registration must go over MMIO */
> +	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
>   }
>   
> -static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
> +static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
> +			      u32 desc_addr, u32 buff_addr, u32 size)
>   {
> -	int err = guc_action_register_ct_buffer(ct_to_guc(ct), desc_addr, type);
> +	int err;
>   
> +	err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
> +					    desc_addr, buff_addr, size);
>   	if (unlikely(err))
>   		CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n",
>   			 guc_ct_buffer_type_to_str(type), err);
> @@ -166,14 +171,17 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
>   
>   static int guc_action_deregister_ct_buffer(struct intel_guc *guc, u32 type)
>   {
> -	u32 action[] = {
> -		INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER,
> -		CTB_OWNER_HOST,
> -		type
> +	u32 request[HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN] = {
> +		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
> +		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
> +		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_DEREGISTER_CTB),
> +		FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type),
>   	};
>   
> -	/* Can't use generic send(), CT deregistration must go over MMIO */
> -	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
> +	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
> +
> +	/* CT deregistration must go over MMIO */
> +	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
>   }
>   
>   static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type)
> @@ -261,7 +269,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct)
>   int intel_guc_ct_enable(struct intel_guc_ct *ct)
>   {
>   	struct intel_guc *guc = ct_to_guc(ct);
> -	u32 base, cmds;
> +	u32 base, desc, cmds;
>   	void *blob;
>   	int err;
>   
> @@ -277,23 +285,26 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>   	GEM_BUG_ON(blob != ct->ctbs.send.desc);
>   
>   	/* (re)initialize descriptors */
> -	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
> -	guc_ct_buffer_reset(&ct->ctbs.send, cmds);
> -
> -	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
> -	guc_ct_buffer_reset(&ct->ctbs.recv, cmds);
> +	guc_ct_buffer_reset(&ct->ctbs.send);
> +	guc_ct_buffer_reset(&ct->ctbs.recv);
>   
>   	/*
>   	 * Register both CT buffers starting with RECV buffer.
>   	 * Descriptors are in first half of the blob.
>   	 */
> -	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.recv.desc, blob),
> -				 INTEL_GUC_CT_BUFFER_TYPE_RECV);
> +	desc = base + ptrdiff(ct->ctbs.recv.desc, blob);
> +	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
> +	err = ct_register_buffer(ct, GUC_CTB_TYPE_GUC2HOST,
> +				 desc, cmds, ct->ctbs.recv.size * 4);
> +
>   	if (unlikely(err))
>   		goto err_out;
>   
> -	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.send.desc, blob),
> -				 INTEL_GUC_CT_BUFFER_TYPE_SEND);
> +	desc = base + ptrdiff(ct->ctbs.send.desc, blob);
> +	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
> +	err = ct_register_buffer(ct, GUC_CTB_TYPE_HOST2GUC,
> +				 desc, cmds, ct->ctbs.send.size * 4);
> +
>   	if (unlikely(err))
>   		goto err_deregister;
>   
> @@ -302,7 +313,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>   	return 0;
>   
>   err_deregister:
> -	ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
> +	ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>   err_out:
>   	CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err));
>   	return err;
> @@ -321,8 +332,8 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
>   	ct->enabled = false;
>   
>   	if (intel_guc_is_fw_running(guc)) {
> -		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_SEND);
> -		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
> +		ct_deregister_buffer(ct, GUC_CTB_TYPE_HOST2GUC);
> +		ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>   	}
>   }
>   
> @@ -354,24 +365,6 @@ static void write_barrier(struct intel_guc_ct *ct)
>   	}
>   }
>   
> -/**
> - * DOC: CTB Host to GuC request
> - *
> - * Format of the CTB Host to GuC request message is as follows::
> - *
> - *      +------------+---------+---------+---------+---------+
> - *      |   msg[0]   |   [1]   |   [2]   |   ...   |  [n-1]  |
> - *      +------------+---------+---------+---------+---------+
> - *      |   MESSAGE  |       MESSAGE PAYLOAD                 |
> - *      +   HEADER   +---------+---------+---------+---------+
> - *      |            |    0    |    1    |   ...   |    n    |
> - *      +============+=========+=========+=========+=========+
> - *      |  len >= 1  |  FENCE  |     request specific data   |
> - *      +------+-----+---------+---------+---------+---------+
> - *
> - *                   ^-----------------len-------------------^
> - */
> -
>   static int ct_write(struct intel_guc_ct *ct,
>   		    const u32 *action,
>   		    u32 len /* in dwords */,
> @@ -384,20 +377,22 @@ static int ct_write(struct intel_guc_ct *ct,
>   	u32 size = ctb->size;
>   	u32 used;
>   	u32 header;
> +	u32 hxg;
>   	u32 *cmds = ctb->cmds;
>   	unsigned int i;
>   
> -	if (unlikely(desc->is_in_error))
> +	if (unlikely(ctb->broken))
>   		return -EPIPE;
>   
> -	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
> -		     (tail | head) >= size))
> +	if (unlikely(desc->status))
>   		goto corrupted;
>   
> -	/* later calculations will be done in dwords */
> -	head /= 4;
> -	tail /= 4;
> -	size /= 4;
> +	if (unlikely((tail | head) >= size)) {
> +		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
> +			 head, tail, size);
> +		desc->status |= GUC_CTB_STATUS_OVERFLOW;
> +		goto corrupted;
> +	}
>   
>   	/*
>   	 * tail == head condition indicates empty. GuC FW does not support
> @@ -413,22 +408,25 @@ static int ct_write(struct intel_guc_ct *ct,
>   		return -ENOSPC;
>   
>   	/*
> -	 * Write the message. The format is the following:
> -	 * DW0: header (including action code)
> -	 * DW1: fence
> -	 * DW2+: action data
> +	 * dw0: CT header (including fence)
> +	 * dw1: HXG header (including action code)
> +	 * dw2+: action data
>   	 */
> -	header = (len << GUC_CT_MSG_LEN_SHIFT) |
> -		 GUC_CT_MSG_SEND_STATUS |
> -		 (action[0] << GUC_CT_MSG_ACTION_SHIFT);
> +	header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) |
> +		 FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) |
> +		 FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence);
>   
> -	CT_DEBUG(ct, "writing %*ph %*ph %*ph\n",
> -		 4, &header, 4, &fence, 4 * (len - 1), &action[1]);
> +	hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
> +	      FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION |
> +			 GUC_HXG_REQUEST_MSG_0_DATA0, action[0]);
> +
> +	CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n",
> +		 tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]);
>   
>   	cmds[tail] = header;
>   	tail = (tail + 1) % size;
>   
> -	cmds[tail] = fence;
> +	cmds[tail] = hxg;
>   	tail = (tail + 1) % size;
>   
>   	for (i = 1; i < len; i++) {
> @@ -443,14 +441,15 @@ static int ct_write(struct intel_guc_ct *ct,
>   	 */
>   	write_barrier(ct);
>   
> -	/* now update desc tail (back in bytes) */
> -	desc->tail = tail * 4;
> +	/* now update descriptor */
> +	WRITE_ONCE(desc->tail, tail);
> +
>   	return 0;
>   
>   corrupted:
> -	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
> -		 desc->addr, desc->head, desc->tail, desc->size);
> -	desc->is_in_error = 1;
> +	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
> +		 desc->head, desc->tail, desc->status);
> +	ctb->broken = true;
>   	return -EPIPE;
>   }
>   
> @@ -477,7 +476,9 @@ static int wait_for_ct_request_update(struct ct_request *req, u32 *status)
>   	 * up to that length of time, then switch to a slower sleep-wait loop.
>   	 * No GuC command should ever take longer than 10ms.
>   	 */
> -#define done INTEL_GUC_MSG_IS_RESPONSE(READ_ONCE(req->status))
> +#define done \
> +	(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, READ_ONCE(req->status)) == \
> +	 GUC_HXG_ORIGIN_GUC)
>   	err = wait_for_us(done, 10);
>   	if (err)
>   		err = wait_for(done, 10);
> @@ -532,21 +533,21 @@ static int ct_send(struct intel_guc_ct *ct,
>   	if (unlikely(err))
>   		goto unlink;
>   
> -	if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) {
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
>   		err = -EIO;
>   		goto unlink;
>   	}
>   
>   	if (response_buf) {
>   		/* There shall be no data in the status */
> -		WARN_ON(INTEL_GUC_MSG_TO_DATA(request.status));
> +		WARN_ON(FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, request.status));
>   		/* Return actual response len */
>   		err = request.response_len;
>   	} else {
>   		/* There shall be no response payload */
>   		WARN_ON(request.response_len);
>   		/* Return data decoded from the status dword */
> -		err = INTEL_GUC_MSG_TO_DATA(*status);
> +		err = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, *status);
>   	}
>   
>   unlink:
> @@ -583,21 +584,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
>   	return ret;
>   }
>   
> -static inline unsigned int ct_header_get_len(u32 header)
> -{
> -	return (header >> GUC_CT_MSG_LEN_SHIFT) & GUC_CT_MSG_LEN_MASK;
> -}
> -
> -static inline unsigned int ct_header_get_action(u32 header)
> -{
> -	return (header >> GUC_CT_MSG_ACTION_SHIFT) & GUC_CT_MSG_ACTION_MASK;
> -}
> -
> -static inline bool ct_header_is_response(u32 header)
> -{
> -	return !!(header & GUC_CT_MSG_IS_RESPONSE);
> -}
> -
>   static struct ct_incoming_msg *ct_alloc_msg(u32 num_dwords)
>   {
>   	struct ct_incoming_msg *msg;
> @@ -630,17 +616,18 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   	unsigned int i;
>   	u32 header;
>   
> -	if (unlikely(desc->is_in_error))
> +	if (unlikely(ctb->broken))
>   		return -EPIPE;
>   
> -	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
> -		     (tail | head) >= size))
> +	if (unlikely(desc->status))
>   		goto corrupted;
>   
> -	/* later calculations will be done in dwords */
> -	head /= 4;
> -	tail /= 4;
> -	size /= 4;
> +	if (unlikely((tail | head) >= size)) {
> +		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
> +			 head, tail, size);
> +		desc->status |= GUC_CTB_STATUS_OVERFLOW;
> +		goto corrupted;
> +	}
>   
>   	/* tail == head condition indicates empty */
>   	available = tail - head;
> @@ -659,7 +646,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   	head = (head + 1) % size;
>   
>   	/* message len with header */
> -	len = ct_header_get_len(header) + 1;
> +	len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, header) + GUC_CTB_MSG_MIN_LEN;
>   	if (unlikely(len > (u32)available)) {
>   		CT_ERROR(ct, "Incomplete message %*ph %*ph %*ph\n",
>   			 4, &header,
> @@ -667,6 +654,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   			      size - head : available - 1), &cmds[head],
>   			 4 * (head + available - 1 > size ?
>   			      available - 1 - size + head : 0), &cmds[0]);
> +		desc->status |= GUC_CTB_STATUS_UNDERFLOW;
>   		goto corrupted;
>   	}
>   
> @@ -689,65 +677,36 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   	}
>   	CT_DEBUG(ct, "received %*ph\n", 4 * len, (*msg)->msg);
>   
> -	desc->head = head * 4;
> +	/* now update descriptor */
> +	WRITE_ONCE(desc->head, head);
> +
>   	return available - len;
>   
>   corrupted:
> -	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
> -		 desc->addr, desc->head, desc->tail, desc->size);
> -	desc->is_in_error = 1;
> +	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
> +		 desc->head, desc->tail, desc->status);
> +	ctb->broken = true;
>   	return -EPIPE;
>   }
>   
> -/**
> - * DOC: CTB GuC to Host response
> - *
> - * Format of the CTB GuC to Host response message is as follows::
> - *
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
> - *      +   HEADER   +---------+---------+---------+---------+---------+
> - *      |            |    0    |    1    |    2    |   ...   |    n    |
> - *      +============+=========+=========+=========+=========+=========+
> - *      |  len >= 2  |  FENCE  |  STATUS |   response specific data    |
> - *      +------+-----+---------+---------+---------+---------+---------+
> - *
> - *                   ^-----------------------len-----------------------^
> - */
> -
>   static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *response)
>   {
> -	u32 header = response->msg[0];
> -	u32 len = ct_header_get_len(header);
> -	u32 fence;
> -	u32 status;
> -	u32 datalen;
> +	u32 len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, response->msg[0]);
> +	u32 fence = FIELD_GET(GUC_CTB_MSG_0_FENCE, response->msg[0]);
> +	const u32 *hxg = &response->msg[GUC_CTB_MSG_MIN_LEN];
> +	const u32 *data = &hxg[GUC_HXG_MSG_MIN_LEN];
> +	u32 datalen = len - GUC_HXG_MSG_MIN_LEN;
>   	struct ct_request *req;
>   	unsigned long flags;
>   	bool found = false;
>   	int err = 0;
>   
> -	GEM_BUG_ON(!ct_header_is_response(header));
> -
> -	/* Response payload shall at least include fence and status */
> -	if (unlikely(len < 2)) {
> -		CT_ERROR(ct, "Corrupted response (len %u)\n", len);
> -		return -EPROTO;
> -	}
> -
> -	fence = response->msg[1];
> -	status = response->msg[2];
> -	datalen = len - 2;
> -
> -	/* Format of the status follows RESPONSE message */
> -	if (unlikely(!INTEL_GUC_MSG_IS_RESPONSE(status))) {
> -		CT_ERROR(ct, "Corrupted response (status %#x)\n", status);
> -		return -EPROTO;
> -	}
> +	GEM_BUG_ON(len < GUC_HXG_MSG_MIN_LEN);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]) != GUC_HXG_ORIGIN_GUC);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_SUCCESS &&
> +		   FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_FAILURE);
>   
> -	CT_DEBUG(ct, "response fence %u status %#x\n", fence, status);
> +	CT_DEBUG(ct, "response fence %u status %#x\n", fence, hxg[0]);
>   
>   	spin_lock_irqsave(&ct->requests.lock, flags);
>   	list_for_each_entry(req, &ct->requests.pending, link) {
> @@ -763,9 +722,9 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
>   			err = -EMSGSIZE;
>   		}
>   		if (datalen)
> -			memcpy(req->response_buf, response->msg + 3, 4 * datalen);
> +			memcpy(req->response_buf, data, 4 * datalen);
>   		req->response_len = datalen;
> -		WRITE_ONCE(req->status, status);
> +		WRITE_ONCE(req->status, hxg[0]);
>   		found = true;
>   		break;
>   	}
> @@ -786,14 +745,16 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
>   static int ct_process_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
>   {
>   	struct intel_guc *guc = ct_to_guc(ct);
> -	u32 header, action, len;
> +	const u32 *hxg;
>   	const u32 *payload;
> +	u32 hxg_len, action, len;
>   	int ret;
>   
> -	header = request->msg[0];
> -	payload = &request->msg[1];
> -	action = ct_header_get_action(header);
> -	len = ct_header_get_len(header);
> +	hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
> +	hxg_len = request->size - GUC_CTB_MSG_MIN_LEN;
> +	payload = &hxg[GUC_HXG_MSG_MIN_LEN];
> +	action = FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, hxg[0]);
> +	len = hxg_len - GUC_HXG_MSG_MIN_LEN;
>   
>   	CT_DEBUG(ct, "request %x %*ph\n", action, 4 * len, payload);
>   
> @@ -855,29 +816,12 @@ static void ct_incoming_request_worker_func(struct work_struct *w)
>   		queue_work(system_unbound_wq, &ct->requests.worker);
>   }
>   
> -/**
> - * DOC: CTB GuC to Host request
> - *
> - * Format of the CTB GuC to Host request message is as follows::
> - *
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
> - *      +   HEADER   +---------+---------+---------+---------+---------+
> - *      |            |    0    |    1    |    2    |   ...   |    n    |
> - *      +============+=========+=========+=========+=========+=========+
> - *      |     len    |            request specific data                |
> - *      +------+-----+---------+---------+---------+---------+---------+
> - *
> - *                   ^-----------------------len-----------------------^
> - */
> -
> -static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
> +static int ct_handle_event(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
>   {
> +	const u32 *hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
>   	unsigned long flags;
>   
> -	GEM_BUG_ON(ct_header_is_response(request->msg[0]));
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_EVENT);
>   
>   	spin_lock_irqsave(&ct->requests.lock, flags);
>   	list_add_tail(&request->link, &ct->requests.incoming);
> @@ -887,15 +831,53 @@ static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *re
>   	return 0;
>   }
>   
> -static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
> +static int ct_handle_hxg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
>   {
> -	u32 header = msg->msg[0];
> +	u32 origin, type;
> +	u32 *hxg;
>   	int err;
>   
> -	if (ct_header_is_response(header))
> +	if (unlikely(msg->size < GUC_CTB_HXG_MSG_MIN_LEN))
> +		return -EBADMSG;
> +
> +	hxg = &msg->msg[GUC_CTB_MSG_MIN_LEN];
> +
> +	origin = FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]);
> +	if (unlikely(origin != GUC_HXG_ORIGIN_GUC)) {
> +		err = -EPROTO;
> +		goto failed;
> +	}
> +
> +	type = FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]);
> +	switch (type) {
> +	case GUC_HXG_TYPE_EVENT:
> +		err = ct_handle_event(ct, msg);
> +		break;
> +	case GUC_HXG_TYPE_RESPONSE_SUCCESS:
> +	case GUC_HXG_TYPE_RESPONSE_FAILURE:
>   		err = ct_handle_response(ct, msg);
> +		break;
> +	default:
> +		err = -EOPNOTSUPP;
> +	}
> +
> +	if (unlikely(err)) {
> +failed:
> +		CT_ERROR(ct, "Failed to handle HXG message (%pe) %*ph\n",
> +			 ERR_PTR(err), 4 * GUC_HXG_MSG_MIN_LEN, hxg);
> +	}
> +	return err;
> +}
> +
> +static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
> +{
> +	u32 format = FIELD_GET(GUC_CTB_MSG_0_FORMAT, msg->msg[0]);
> +	int err;
> +
> +	if (format == GUC_CTB_FORMAT_HXG)
> +		err = ct_handle_hxg(ct, msg);
>   	else
> -		err = ct_handle_request(ct, msg);
> +		err = -EOPNOTSUPP;
>   
>   	if (unlikely(err)) {
>   		CT_ERROR(ct, "Failed to process CT message (%pe) %*ph\n",
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> index cb222f202301..1ae2dde6db93 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> @@ -31,13 +31,15 @@ struct intel_guc;
>    * @lock: protects access to the commands buffer and buffer descriptor
>    * @desc: pointer to the buffer descriptor
>    * @cmds: pointer to the commands buffer
> - * @size: size of the commands buffer
> + * @size: size of the commands buffer in dwords
> + * @broken: flag to indicate if descriptor data is broken
>    */
>   struct intel_guc_ct_buffer {
>   	spinlock_t lock;
>   	struct guc_ct_buffer_desc *desc;
>   	u32 *cmds;
>   	u32 size;
> +	bool broken;
>   };
>   
>   
> @@ -59,7 +61,7 @@ struct intel_guc_ct {
>   	struct tasklet_struct receive_tasklet;
>   
>   	struct {
> -		u32 last_fence; /* last fence used to send request */
> +		u16 last_fence; /* last fence used to send request */
>   
>   		spinlock_t lock; /* protects pending requests list */
>   		struct list_head pending; /* requests waiting for response */
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> index e9a9d85e2aa3..617ec601648d 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> @@ -81,10 +81,8 @@
>   #define   GUC_LOG_ALLOC_IN_MEGABYTE	(1 << 3)
>   #define   GUC_LOG_CRASH_SHIFT		4
>   #define   GUC_LOG_CRASH_MASK		(0x3 << GUC_LOG_CRASH_SHIFT)
> -#define   GUC_LOG_DPC_SHIFT		6
> -#define   GUC_LOG_DPC_MASK	        (0x7 << GUC_LOG_DPC_SHIFT)
> -#define   GUC_LOG_ISR_SHIFT		9
> -#define   GUC_LOG_ISR_MASK	        (0x7 << GUC_LOG_ISR_SHIFT)
> +#define   GUC_LOG_DEBUG_SHIFT		6
> +#define   GUC_LOG_DEBUG_MASK	        (0xF << GUC_LOG_DEBUG_SHIFT)
>   #define   GUC_LOG_BUF_ADDR_SHIFT	12
>   
>   #define GUC_CTL_WA			1
> @@ -247,32 +245,14 @@ struct guc_stage_desc {
>   
>   /* Scheduling policy settings */
>   
> -/* Reset engine upon preempt failure */
> -#define POLICY_RESET_ENGINE		(1<<0)
> -/* Preempt to idle on quantum expiry */
> -#define POLICY_PREEMPT_TO_IDLE		(1<<1)
> -
> -#define POLICY_MAX_NUM_WI 15
> -#define POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
> -#define POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
> -#define POLICY_DEFAULT_PREEMPTION_TIME_US 500000
> -#define POLICY_DEFAULT_FAULT_TIME_US 250000
> -
> -struct guc_policy {
> -	/* Time for one workload to execute. (in micro seconds) */
> -	u32 execution_quantum;
> -	/* Time to wait for a preemption request to completed before issuing a
> -	 * reset. (in micro seconds). */
> -	u32 preemption_time;
> -	/* How much time to allow to run after the first fault is observed.
> -	 * Then preempt afterwards. (in micro seconds) */
> -	u32 fault_time;
> -	u32 policy_flags;
> -	u32 reserved[8];
> -} __packed;
> +#define GLOBAL_POLICY_MAX_NUM_WI 15
> +
> +/* Don't reset an engine upon preemption failure */
> +#define GLOBAL_POLICY_DISABLE_ENGINE_RESET				BIT(0)
> +
> +#define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
>   
>   struct guc_policies {
> -	struct guc_policy policy[GUC_CLIENT_PRIORITY_NUM][GUC_MAX_ENGINE_CLASSES];
>   	u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
>   	/* In micro seconds. How much time to allow before DPC processing is
>   	 * called back via interrupt (to prevent DPC queue drain starving).
> @@ -286,6 +266,7 @@ struct guc_policies {
>   	 * idle. */
>   	u32 max_num_work_items;
>   
> +	u32 global_flags;
>   	u32 reserved[4];
>   } __packed;
>   
> @@ -311,29 +292,13 @@ struct guc_gt_system_info {
>   	u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
>   } __packed;
>   
> -/* Clients info */
> -struct guc_ct_pool_entry {
> -	struct guc_ct_buffer_desc desc;
> -	u32 reserved[7];
> -} __packed;
> -
> -#define GUC_CT_POOL_SIZE	2
> -
> -struct guc_clients_info {
> -	u32 clients_num;
> -	u32 reserved0[13];
> -	u32 ct_pool_addr;
> -	u32 ct_pool_count;
> -	u32 reserved[4];
> -} __packed;
> -
>   /* GuC Additional Data Struct */
>   struct guc_ads {
>   	struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
>   	u32 reserved0;
>   	u32 scheduler_policies;
>   	u32 gt_system_info;
> -	u32 clients_info;
> +	u32 reserved1;
>   	u32 control_data;
>   	u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
>   	u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
> @@ -344,8 +309,7 @@ struct guc_ads {
>   /* GuC logging structures */
>   
>   enum guc_log_buffer_type {
> -	GUC_ISR_LOG_BUFFER,
> -	GUC_DPC_LOG_BUFFER,
> +	GUC_DEBUG_LOG_BUFFER,
>   	GUC_CRASH_DUMP_LOG_BUFFER,
>   	GUC_MAX_LOG_BUFFER
>   };
> @@ -414,23 +378,6 @@ struct guc_shared_ctx_data {
>   	struct guc_ctx_report preempt_ctx_report[GUC_MAX_ENGINES_NUM];
>   } __packed;
>   
> -#define __INTEL_GUC_MSG_GET(T, m) \
> -	(((m) & INTEL_GUC_MSG_ ## T ## _MASK) >> INTEL_GUC_MSG_ ## T ## _SHIFT)
> -#define INTEL_GUC_MSG_TO_TYPE(m)	__INTEL_GUC_MSG_GET(TYPE, m)
> -#define INTEL_GUC_MSG_TO_DATA(m)	__INTEL_GUC_MSG_GET(DATA, m)
> -#define INTEL_GUC_MSG_TO_CODE(m)	__INTEL_GUC_MSG_GET(CODE, m)
> -
> -#define __INTEL_GUC_MSG_TYPE_IS(T, m) \
> -	(INTEL_GUC_MSG_TO_TYPE(m) == INTEL_GUC_MSG_TYPE_ ## T)
> -#define INTEL_GUC_MSG_IS_REQUEST(m)	__INTEL_GUC_MSG_TYPE_IS(REQUEST, m)
> -#define INTEL_GUC_MSG_IS_RESPONSE(m)	__INTEL_GUC_MSG_TYPE_IS(RESPONSE, m)
> -
> -#define INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(m) \
> -	 (typecheck(u32, (m)) && \
> -	  ((m) & (INTEL_GUC_MSG_TYPE_MASK | INTEL_GUC_MSG_CODE_MASK)) == \
> -	  ((INTEL_GUC_MSG_TYPE_RESPONSE << INTEL_GUC_MSG_TYPE_SHIFT) | \
> -	   (INTEL_GUC_RESPONSE_STATUS_SUCCESS << INTEL_GUC_MSG_CODE_SHIFT)))
> -
>   /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
>   enum intel_guc_recv_message {
>   	INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> index c36d5eb5bbb9..ac0931f0374b 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> @@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct intel_guc_log *log,
>   static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type)
>   {
>   	switch (type) {
> -	case GUC_ISR_LOG_BUFFER:
> -		return ISR_BUFFER_SIZE;
> -	case GUC_DPC_LOG_BUFFER:
> -		return DPC_BUFFER_SIZE;
> +	case GUC_DEBUG_LOG_BUFFER:
> +		return DEBUG_BUFFER_SIZE;
>   	case GUC_CRASH_DUMP_LOG_BUFFER:
>   		return CRASH_BUFFER_SIZE;
>   	default:
> @@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
>   	src_data += PAGE_SIZE;
>   	dst_data += PAGE_SIZE;
>   
> -	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> +	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
>   		/*
>   		 * Make a copy of the state structure, inside GuC log buffer
>   		 * (which is uncached mapped), on the stack to avoid reading
> @@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
>   	 *  +===============================+ 00B
>   	 *  |    Crash dump state header    |
>   	 *  +-------------------------------+ 32B
> -	 *  |       DPC state header        |
> +	 *  |      Debug state header       |
>   	 *  +-------------------------------+ 64B
> -	 *  |       ISR state header        |
> -	 *  +-------------------------------+ 96B
>   	 *  |                               |
>   	 *  +===============================+ PAGE_SIZE (4KB)
>   	 *  |        Crash Dump logs        |
>   	 *  +===============================+ + CRASH_SIZE
> -	 *  |           DPC logs            |
> -	 *  +===============================+ + DPC_SIZE
> -	 *  |           ISR logs            |
> -	 *  +===============================+ + ISR_SIZE
> +	 *  |          Debug logs           |
> +	 *  +===============================+ + DEBUG_SIZE
>   	 */
> -	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
> -			ISR_BUFFER_SIZE;
> +	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
>   
>   	vma = intel_guc_allocate_vma(guc, guc_log_size);
>   	if (IS_ERR(vma)) {
> @@ -675,10 +668,8 @@ static const char *
>   stringify_guc_log_type(enum guc_log_buffer_type type)
>   {
>   	switch (type) {
> -	case GUC_ISR_LOG_BUFFER:
> -		return "ISR";
> -	case GUC_DPC_LOG_BUFFER:
> -		return "DPC";
> +	case GUC_DEBUG_LOG_BUFFER:
> +		return "DEBUG";
>   	case GUC_CRASH_DUMP_LOG_BUFFER:
>   		return "CRASH";
>   	default:
> @@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p)
>   
>   	drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
>   
> -	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> +	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
>   		drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
>   			   stringify_guc_log_type(type),
>   			   log->stats[type].flush,
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> index 11fccd0b2294..ac1ee1d5ce10 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> @@ -17,12 +17,10 @@ struct intel_guc;
>   
>   #ifdef CONFIG_DRM_I915_DEBUG_GUC
>   #define CRASH_BUFFER_SIZE	SZ_2M
> -#define DPC_BUFFER_SIZE		SZ_8M
> -#define ISR_BUFFER_SIZE		SZ_8M
> +#define DEBUG_BUFFER_SIZE	SZ_16M
>   #else
>   #define CRASH_BUFFER_SIZE	SZ_8K
> -#define DPC_BUFFER_SIZE		SZ_32K
> -#define ISR_BUFFER_SIZE		SZ_32K
> +#define DEBUG_BUFFER_SIZE	SZ_64K
>   #endif
>   
>   /*
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
> index df647c9a8d56..9f23e9de3237 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
> @@ -48,19 +48,19 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
>    * firmware as TGL.
>    */
>   #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \
> -	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
> -	fw_def(ROCKETLAKE,  0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
> -	fw_def(TIGERLAKE,   0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
> -	fw_def(JASPERLAKE,  0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
> -	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
> -	fw_def(ICELAKE,     0, guc_def(icl, 49, 0, 1), huc_def(icl,  9, 0, 0)) \
> -	fw_def(COMETLAKE,   5, guc_def(cml, 49, 0, 1), huc_def(cml,  4, 0, 0)) \
> -	fw_def(COMETLAKE,   0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
> -	fw_def(COFFEELAKE,  0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
> -	fw_def(GEMINILAKE,  0, guc_def(glk, 49, 0, 1), huc_def(glk,  4, 0, 0)) \
> -	fw_def(KABYLAKE,    0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
> -	fw_def(BROXTON,     0, guc_def(bxt, 49, 0, 1), huc_def(bxt,  2, 0, 0)) \
> -	fw_def(SKYLAKE,     0, guc_def(skl, 49, 0, 1), huc_def(skl,  2, 0, 0))
> +	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
> +	fw_def(ROCKETLAKE,  0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
> +	fw_def(TIGERLAKE,   0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
> +	fw_def(JASPERLAKE,  0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
> +	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
> +	fw_def(ICELAKE,     0, guc_def(icl, 62, 0, 0), huc_def(icl,  9, 0, 0)) \
> +	fw_def(COMETLAKE,   5, guc_def(cml, 62, 0, 0), huc_def(cml,  4, 0, 0)) \
> +	fw_def(COMETLAKE,   0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
> +	fw_def(COFFEELAKE,  0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
> +	fw_def(GEMINILAKE,  0, guc_def(glk, 62, 0, 0), huc_def(glk,  4, 0, 0)) \
> +	fw_def(KABYLAKE,    0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
> +	fw_def(BROXTON,     0, guc_def(bxt, 62, 0, 0), huc_def(bxt,  2, 0, 0)) \
> +	fw_def(SKYLAKE,     0, guc_def(skl, 62, 0, 0), huc_def(skl,  2, 0, 0))
>   
>   #define __MAKE_UC_FW_PATH(prefix_, name_, major_, minor_, patch_) \
>   	"i915/" \


^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [Intel-gfx] [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0
@ 2021-06-17  1:41     ` Daniele Ceraolo Spurio
  0 siblings, 0 replies; 19+ messages in thread
From: Daniele Ceraolo Spurio @ 2021-06-17  1:41 UTC (permalink / raw)
  To: Matthew Brost, intel-gfx, dri-devel



On 6/15/2021 5:13 PM, Matthew Brost wrote:
> From: Michal Wajdeczko <michal.wajdeczko@intel.com>
>
> Most of the changes to the 62.0.0 firmware revolved around CTB
> communication channel. Conform to the new (stable) CTB protocol.
>
> v2:
>   (Michal)
>    Add values back to kernel DOC for actions
>   (Docs)
>    Add 'CT buffer' back in to fix warning
>
> Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
> ---
>   .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
>   .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
>   .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
>   drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
>   drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
>   drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
>   drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
>   11 files changed, 527 insertions(+), 421 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> index 90efef8a73e4..2d6198e63ebe 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> @@ -6,6 +6,113 @@
>   #ifndef _ABI_GUC_ACTIONS_ABI_H
>   #define _ABI_GUC_ACTIONS_ABI_H
>   
> +/**
> + * DOC: HOST2GUC_REGISTER_CTB
> + *
> + * This message is used as part of the `CTB based communication`_ setup.
> + *
> + * This message must be sent as `MMIO HXG Message`_.
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 27:16 | DATA0 = MBZ                                                  |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_REGISTER_CTB` = 0x4505        |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 | 31:12 | RESERVED = MBZ                                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | **TYPE** - type for the `CT Buffer`_                         |
> + *  |   |       |                                                              |
> + *  |   |       |   - _`GUC_CTB_TYPE_HOST2GUC` = 0                             |
> + *  |   |       |   - _`GUC_CTB_TYPE_GUC2HOST` = 1                             |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | **SIZE** - size of the `CT Buffer`_ in 4K units minus 1      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 2 |  31:0 | **DESC_ADDR** - GGTT address of the `CTB Descriptor`_        |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 3 |  31:0 | **BUFF_ADDF** - GGTT address of the `CT Buffer`_             |
> + *  +---+-------+--------------------------------------------------------------+
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  27:0 | DATA0 = MBZ                                                  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +#define GUC_ACTION_HOST2GUC_REGISTER_CTB		0x4505
> +
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 3u)
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_0_MBZ		GUC_HXG_REQUEST_MSG_0_DATA0
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_MBZ		(0xfffff << 12)
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
> +#define   GUC_CTB_TYPE_HOST2GUC				0u
> +#define   GUC_CTB_TYPE_GUC2HOST				1u
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE	(0xff << 0)
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR	GUC_HXG_REQUEST_MSG_n_DATAn
> +
> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_LEN		GUC_HXG_RESPONSE_MSG_MIN_LEN
> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
> +
> +/**
> + * DOC: HOST2GUC_DEREGISTER_CTB
> + *
> + * This message is used as part of the `CTB based communication`_ teardown.
> + *
> + * This message must be sent as `MMIO HXG Message`_.
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 27:16 | DATA0 = MBZ                                                  |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_DEREGISTER_CTB` = 0x4506      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 | 31:12 | RESERVED = MBZ                                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | **TYPE** - type of the `CT Buffer`_                          |
> + *  |   |       |                                                              |
> + *  |   |       | see `GUC_ACTION_HOST2GUC_REGISTER_CTB`_                      |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | RESERVED = MBZ                                               |
> + *  +---+-------+--------------------------------------------------------------+
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  27:0 | DATA0 = MBZ                                                  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +#define GUC_ACTION_HOST2GUC_DEREGISTER_CTB		0x4506
> +
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN		(GUC_HXG_REQUEST_MSG_MIN_LEN + 1u)
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_0_MBZ	GUC_HXG_REQUEST_MSG_0_DATA0
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ	(0xfffff << 12)
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE	(0xf << 8)
> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ2	(0xff << 0)
> +
> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_LEN	GUC_HXG_RESPONSE_MSG_MIN_LEN
> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_0_MBZ	GUC_HXG_RESPONSE_MSG_0_DATA0
> +
> +/* legacy definitions */
> +
>   enum intel_guc_action {
>   	INTEL_GUC_ACTION_DEFAULT = 0x0,
>   	INTEL_GUC_ACTION_REQUEST_PREEMPTION = 0x2,
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
> index d38935f47ecf..29fc93a8b5be 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
> @@ -7,6 +7,110 @@
>   #define _ABI_GUC_COMMUNICATION_CTB_ABI_H
>   
>   #include <linux/types.h>
> +#include <linux/build_bug.h>
> +
> +#include "guc_messages_abi.h"
> +
> +/**
> + * DOC: CT Buffer
> + *
> + * Circular buffer used to send / receive CTBs (H2G or G2H)

nit: the CTB is not used to send CTBs, but to send messages. Can fix 
while pushing.

For the rest I couldn't spot anything that didn't match what was already 
reviewed, so:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

Daniele

> + */
> +
> +/**
> + * DOC: CTB Descriptor
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |  31:0 | **HEAD** - offset (in dwords) to the last dword that was     |
> + *  |   |       | read from the `CT Buffer`_.                                  |
> + *  |   |       | It can only be updated by the receiver.                      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 |  31:0 | **TAIL** - offset (in dwords) to the last dword that was     |
> + *  |   |       | written to the `CT Buffer`_.                                 |
> + *  |   |       | It can only be updated by the sender.                        |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 2 |  31:0 | **STATUS** - status of the CTB                               |
> + *  |   |       |                                                              |
> + *  |   |       |   - _`GUC_CTB_STATUS_NO_ERROR` = 0 (normal operation)        |
> + *  |   |       |   - _`GUC_CTB_STATUS_OVERFLOW` = 1 (head/tail too large)     |
> + *  |   |       |   - _`GUC_CTB_STATUS_UNDERFLOW` = 2 (truncated message)      |
> + *  |   |       |   - _`GUC_CTB_STATUS_MISMATCH` = 4 (head/tail modified)      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  |...|       | RESERVED = MBZ                                               |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 15|  31:0 | RESERVED = MBZ                                               |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +
> +struct guc_ct_buffer_desc {
> +	u32 head;
> +	u32 tail;
> +	u32 status;
> +#define GUC_CTB_STATUS_NO_ERROR				0
> +#define GUC_CTB_STATUS_OVERFLOW				(1 << 0)
> +#define GUC_CTB_STATUS_UNDERFLOW			(1 << 1)
> +#define GUC_CTB_STATUS_MISMATCH				(1 << 2)
> +	u32 reserved[13];
> +} __packed;
> +static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
> +
> +/**
> + * DOC: CTB Message
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 | 31:16 | **FENCE** - message identifier                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 15:12 | **FORMAT** - format of the CTB message                       |
> + *  |   |       |  - _`GUC_CTB_FORMAT_HXG` = 0 - see `CTB HXG Message`_        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | **RESERVED**                                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | **NUM_DWORDS** - length of the CTB message (w/o header)      |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 |  31:0 | optional (depends on FORMAT)                                 |
> + *  +---+-------+                                                              |
> + *  |...|       |                                                              |
> + *  +---+-------+                                                              |
> + *  | n |  31:0 |                                                              |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_CTB_MSG_MIN_LEN			1u
> +#define GUC_CTB_MSG_MAX_LEN			256u
> +#define GUC_CTB_MSG_0_FENCE			(0xffff << 16)
> +#define GUC_CTB_MSG_0_FORMAT			(0xf << 12)
> +#define   GUC_CTB_FORMAT_HXG			0u
> +#define GUC_CTB_MSG_0_RESERVED			(0xf << 8)
> +#define GUC_CTB_MSG_0_NUM_DWORDS		(0xff << 0)
> +
> +/**
> + * DOC: CTB HXG Message
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 | 31:16 | FENCE                                                        |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   | 15:12 | FORMAT = GUC_CTB_FORMAT_HXG_                                 |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |  11:8 | RESERVED = MBZ                                               |
> + *  |   +-------+--------------------------------------------------------------+
> + *  |   |   7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG message  |
> + *  +---+-------+--------------------------------------------------------------+
> + *  | 1 |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+  |                                                        |  |
> + *  |...|       |  |  Embedded `HXG Message`_                               |  |
> + *  +---+-------+  |                                                        |  |
> + *  | n |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_CTB_HXG_MSG_MIN_LEN		(GUC_CTB_MSG_MIN_LEN + GUC_HXG_MSG_MIN_LEN)
> +#define GUC_CTB_HXG_MSG_MAX_LEN		GUC_CTB_MSG_MAX_LEN
>   
>   /**
>    * DOC: CTB based communication
> @@ -60,28 +164,6 @@
>    * - **flags**, holds various bits to control message handling
>    */
>   
> -/*
> - * Describes single command transport buffer.
> - * Used by both guc-master and clients.
> - */
> -struct guc_ct_buffer_desc {
> -	u32 addr;		/* gfx address */
> -	u64 host_private;	/* host private data */
> -	u32 size;		/* size in bytes */
> -	u32 head;		/* offset updated by GuC*/
> -	u32 tail;		/* offset updated by owner */
> -	u32 is_in_error;	/* error indicator */
> -	u32 reserved1;
> -	u32 reserved2;
> -	u32 owner;		/* id of the channel owner */
> -	u32 owner_sub_id;	/* owner-defined field for extra tracking */
> -	u32 reserved[5];
> -} __packed;
> -
> -/* Type of command transport buffer */
> -#define INTEL_GUC_CT_BUFFER_TYPE_SEND	0x0u
> -#define INTEL_GUC_CT_BUFFER_TYPE_RECV	0x1u
> -
>   /*
>    * Definition of the command transport message header (DW0)
>    *
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
> index be066a62e9e0..bbf1ddb77434 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
> @@ -7,46 +7,43 @@
>   #define _ABI_GUC_COMMUNICATION_MMIO_ABI_H
>   
>   /**
> - * DOC: MMIO based communication
> + * DOC: GuC MMIO based communication
>    *
> - * The MMIO based communication between Host and GuC uses software scratch
> - * registers, where first register holds data treated as message header,
> - * and other registers are used to hold message payload.
> + * The MMIO based communication between Host and GuC relies on special
> + * hardware registers which format could be defined by the software
> + * (so called scratch registers).
>    *
> - * For Gen9+, GuC uses software scratch registers 0xC180-0xC1B8,
> - * but no H2G command takes more than 8 parameters and the GuC FW
> - * itself uses an 8-element array to store the H2G message.
> + * Each MMIO based message, both Host to GuC (H2G) and GuC to Host (G2H)
> + * messages, which maximum length depends on number of available scratch
> + * registers, is directly written into those scratch registers.
>    *
> - *      +-----------+---------+---------+---------+
> - *      |  MMIO[0]  | MMIO[1] |   ...   | MMIO[n] |
> - *      +-----------+---------+---------+---------+
> - *      | header    |      optional payload       |
> - *      +======+====+=========+=========+=========+
> - *      | 31:28|type|         |         |         |
> - *      +------+----+         |         |         |
> - *      | 27:16|data|         |         |         |
> - *      +------+----+         |         |         |
> - *      |  15:0|code|         |         |         |
> - *      +------+----+---------+---------+---------+
> + * For Gen9+, there are 16 software scratch registers 0xC180-0xC1B8,
> + * but no H2G command takes more than 4 parameters and the GuC firmware
> + * itself uses an 4-element array to store the H2G message.
>    *
> - * The message header consists of:
> + * For Gen11+, there are additional 4 registers 0x190240-0x19024C, which
> + * are, regardless on lower count, preferred over legacy ones.
>    *
> - * - **type**, indicates message type
> - * - **code**, indicates message code, is specific for **type**
> - * - **data**, indicates message data, optional, depends on **code**
> - *
> - * The following message **types** are supported:
> - *
> - * - **REQUEST**, indicates Host-to-GuC request, requested GuC action code
> - *   must be priovided in **code** field. Optional action specific parameters
> - *   can be provided in remaining payload registers or **data** field.
> - *
> - * - **RESPONSE**, indicates GuC-to-Host response from earlier GuC request,
> - *   action response status will be provided in **code** field. Optional
> - *   response data can be returned in remaining payload registers or **data**
> - *   field.
> + * The MMIO based communication is mainly used during driver initialization
> + * phase to setup the `CTB based communication`_ that will be used afterwards.
>    */
>   
> -#define GUC_MAX_MMIO_MSG_LEN		8
> +#define GUC_MAX_MMIO_MSG_LEN		4
> +
> +/**
> + * DOC: MMIO HXG Message
> + *
> + * Format of the MMIO messages follows definitions of `HXG Message`_.
> + *
> + *  +---+-------+--------------------------------------------------------------+
> + *  |   | Bits  | Description                                                  |
> + *  +===+=======+==============================================================+
> + *  | 0 |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+  |                                                        |  |
> + *  |...|       |  |  Embedded `HXG Message`_                               |  |
> + *  +---+-------+  |                                                        |  |
> + *  | n |  31:0 |  +--------------------------------------------------------+  |
> + *  +---+-------+--------------------------------------------------------------+
> + */
>   
>   #endif /* _ABI_GUC_COMMUNICATION_MMIO_ABI_H */
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> index f147cb389a20..6661dcb02239 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> @@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
>   
>   	BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
>   	BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
> -	BUILD_BUG_ON(!DPC_BUFFER_SIZE);
> -	BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
> -	BUILD_BUG_ON(!ISR_BUFFER_SIZE);
> -	BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
> +	BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
> +	BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
>   
>   	BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
>   			(GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
> -	BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
> -			(GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
> -	BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
> -			(GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
> +	BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
> +			(GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
>   
>   	flags = GUC_LOG_VALID |
>   		GUC_LOG_NOTIFY_ON_HALF_FULL |
>   		FLAG |
>   		((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
> -		((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
> -		((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
> +		((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
>   		(offset << GUC_LOG_BUF_ADDR_SHIFT);
>   
>   	#undef UNIT
> @@ -376,29 +371,27 @@ void intel_guc_fini(struct intel_guc *guc)
>   /*
>    * This function implements the MMIO based host to GuC interface.
>    */
> -int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
> +int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request, u32 len,
>   			u32 *response_buf, u32 response_buf_size)
>   {
> +	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
>   	struct intel_uncore *uncore = guc_to_gt(guc)->uncore;
> -	u32 status;
> +	u32 header;
>   	int i;
>   	int ret;
>   
>   	GEM_BUG_ON(!len);
>   	GEM_BUG_ON(len > guc->send_regs.count);
>   
> -	/* We expect only action code */
> -	GEM_BUG_ON(*action & ~INTEL_GUC_MSG_CODE_MASK);
> -
> -	/* If CT is available, we expect to use MMIO only during init/fini */
> -	GEM_BUG_ON(*action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
> -		   *action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, request[0]) != GUC_HXG_ORIGIN_HOST);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, request[0]) != GUC_HXG_TYPE_REQUEST);
>   
>   	mutex_lock(&guc->send_mutex);
>   	intel_uncore_forcewake_get(uncore, guc->send_regs.fw_domains);
>   
> +retry:
>   	for (i = 0; i < len; i++)
> -		intel_uncore_write(uncore, guc_send_reg(guc, i), action[i]);
> +		intel_uncore_write(uncore, guc_send_reg(guc, i), request[i]);
>   
>   	intel_uncore_posting_read(uncore, guc_send_reg(guc, i - 1));
>   
> @@ -410,30 +403,74 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
>   	 */
>   	ret = __intel_wait_for_register_fw(uncore,
>   					   guc_send_reg(guc, 0),
> -					   INTEL_GUC_MSG_TYPE_MASK,
> -					   INTEL_GUC_MSG_TYPE_RESPONSE <<
> -					   INTEL_GUC_MSG_TYPE_SHIFT,
> -					   10, 10, &status);
> -	/* If GuC explicitly returned an error, convert it to -EIO */
> -	if (!ret && !INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(status))
> -		ret = -EIO;
> +					   GUC_HXG_MSG_0_ORIGIN,
> +					   FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
> +						      GUC_HXG_ORIGIN_GUC),
> +					   10, 10, &header);
> +	if (unlikely(ret)) {
> +timeout:
> +		drm_err(&i915->drm, "mmio request %#x: no reply %x\n",
> +			request[0], header);
> +		goto out;
> +	}
>   
> -	if (ret) {
> -		DRM_ERROR("MMIO: GuC action %#x failed with error %d %#x\n",
> -			  action[0], ret, status);
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_BUSY) {
> +#define done ({ header = intel_uncore_read(uncore, guc_send_reg(guc, 0)); \
> +		FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) != GUC_HXG_ORIGIN_GUC || \
> +		FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_NO_RESPONSE_BUSY; })
> +
> +		ret = wait_for(done, 1000);
> +		if (unlikely(ret))
> +			goto timeout;
> +		if (unlikely(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) !=
> +				       GUC_HXG_ORIGIN_GUC))
> +			goto proto;
> +#undef done
> +	}
> +
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_NO_RESPONSE_RETRY) {
> +		u32 reason = FIELD_GET(GUC_HXG_RETRY_MSG_0_REASON, header);
> +
> +		drm_dbg(&i915->drm, "mmio request %#x: retrying, reason %u\n",
> +			request[0], reason);
> +		goto retry;
> +	}
> +
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) == GUC_HXG_TYPE_RESPONSE_FAILURE) {
> +		u32 hint = FIELD_GET(GUC_HXG_FAILURE_MSG_0_HINT, header);
> +		u32 error = FIELD_GET(GUC_HXG_FAILURE_MSG_0_ERROR, header);
> +
> +		drm_err(&i915->drm, "mmio request %#x: failure %x/%u\n",
> +			request[0], error, hint);
> +		ret = -ENXIO;
> +		goto out;
> +	}
> +
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
> +proto:
> +		drm_err(&i915->drm, "mmio request %#x: unexpected reply %#x\n",
> +			request[0], header);
> +		ret = -EPROTO;
>   		goto out;
>   	}
>   
>   	if (response_buf) {
> -		int count = min(response_buf_size, guc->send_regs.count - 1);
> +		int count = min(response_buf_size, guc->send_regs.count);
>   
> -		for (i = 0; i < count; i++)
> +		GEM_BUG_ON(!count);
> +
> +		response_buf[0] = header;
> +
> +		for (i = 1; i < count; i++)
>   			response_buf[i] = intel_uncore_read(uncore,
> -							    guc_send_reg(guc, i + 1));
> -	}
> +							    guc_send_reg(guc, i));
>   
> -	/* Use data from the GuC response as our return value */
> -	ret = INTEL_GUC_MSG_TO_DATA(status);
> +		/* Use number of copied dwords as our return value */
> +		ret = count;
> +	} else {
> +		/* Use data from the GuC response as our return value */
> +		ret = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header);
> +	}
>   
>   out:
>   	intel_uncore_forcewake_put(uncore, guc->send_regs.fw_domains);
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> index 9abfbc6edbd6..b82145652d57 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> @@ -24,10 +24,6 @@
>    *      +---------------------------------------+
>    *      | guc_gt_system_info                    |
>    *      +---------------------------------------+
> - *      | guc_clients_info                      |
> - *      +---------------------------------------+
> - *      | guc_ct_pool_entry[size]               |
> - *      +---------------------------------------+
>    *      | padding                               |
>    *      +---------------------------------------+ <== 4K aligned
>    *      | private data                          |
> @@ -39,8 +35,6 @@ struct __guc_ads_blob {
>   	struct guc_ads ads;
>   	struct guc_policies policies;
>   	struct guc_gt_system_info system_info;
> -	struct guc_clients_info clients_info;
> -	struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
>   } __packed;
>   
>   static u32 guc_ads_private_data_size(struct intel_guc *guc)
> @@ -59,38 +53,15 @@ static u32 guc_ads_blob_size(struct intel_guc *guc)
>   	       guc_ads_private_data_size(guc);
>   }
>   
> -static void guc_policy_init(struct guc_policy *policy)
> -{
> -	policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
> -	policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
> -	policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
> -	policy->policy_flags = 0;
> -}
> -
>   static void guc_policies_init(struct guc_policies *policies)
>   {
> -	struct guc_policy *policy;
> -	u32 p, i;
> -
> -	policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
> -	policies->max_num_work_items = POLICY_MAX_NUM_WI;
> -
> -	for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
> -		for (i = 0; i < GUC_MAX_ENGINE_CLASSES; i++) {
> -			policy = &policies->policy[p][i];
> -
> -			guc_policy_init(policy);
> -		}
> -	}
> -
> +	policies->dpc_promote_time = GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
> +	policies->max_num_work_items = GLOBAL_POLICY_MAX_NUM_WI;
> +	/* Disable automatic resets as not yet supported. */
> +	policies->global_flags = GLOBAL_POLICY_DISABLE_ENGINE_RESET;
>   	policies->is_valid = 1;
>   }
>   
> -static void guc_ct_pool_entries_init(struct guc_ct_pool_entry *pool, u32 num)
> -{
> -	memset(pool, 0, num * sizeof(*pool));
> -}
> -
>   static void guc_mapping_table_init(struct intel_gt *gt,
>   				   struct guc_gt_system_info *system_info)
>   {
> @@ -178,17 +149,9 @@ static void __guc_ads_init(struct intel_guc *guc)
>   
>   	base = intel_guc_ggtt_offset(guc, guc->ads_vma);
>   
> -	/* Clients info  */
> -	guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
> -
> -	blob->clients_info.clients_num = 1;
> -	blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
> -	blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
> -
>   	/* ADS */
>   	blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
>   	blob->ads.gt_system_info = base + ptr_offset(blob, system_info);
> -	blob->ads.clients_info = base + ptr_offset(blob, clients_info);
>   
>   	/* Private Data */
>   	blob->ads.private_data = base + guc_ads_private_data_offset(guc);
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> index 8f7b148fef58..43409044528e 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> @@ -103,61 +103,66 @@ void intel_guc_ct_init_early(struct intel_guc_ct *ct)
>   static inline const char *guc_ct_buffer_type_to_str(u32 type)
>   {
>   	switch (type) {
> -	case INTEL_GUC_CT_BUFFER_TYPE_SEND:
> +	case GUC_CTB_TYPE_HOST2GUC:
>   		return "SEND";
> -	case INTEL_GUC_CT_BUFFER_TYPE_RECV:
> +	case GUC_CTB_TYPE_GUC2HOST:
>   		return "RECV";
>   	default:
>   		return "<invalid>";
>   	}
>   }
>   
> -static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc,
> -				    u32 cmds_addr, u32 size)
> +static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc)
>   {
>   	memset(desc, 0, sizeof(*desc));
> -	desc->addr = cmds_addr;
> -	desc->size = size;
> -	desc->owner = CTB_OWNER_HOST;
>   }
>   
> -static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb, u32 cmds_addr)
> +static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb)
>   {
> -	guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size);
> +	ctb->broken = false;
> +	guc_ct_buffer_desc_init(ctb->desc);
>   }
>   
>   static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb,
>   			       struct guc_ct_buffer_desc *desc,
> -			       u32 *cmds, u32 size)
> +			       u32 *cmds, u32 size_in_bytes)
>   {
> -	GEM_BUG_ON(size % 4);
> +	GEM_BUG_ON(size_in_bytes % 4);
>   
>   	ctb->desc = desc;
>   	ctb->cmds = cmds;
> -	ctb->size = size;
> +	ctb->size = size_in_bytes / 4;
>   
> -	guc_ct_buffer_reset(ctb, 0);
> +	guc_ct_buffer_reset(ctb);
>   }
>   
> -static int guc_action_register_ct_buffer(struct intel_guc *guc,
> -					 u32 desc_addr,
> -					 u32 type)
> +static int guc_action_register_ct_buffer(struct intel_guc *guc, u32 type,
> +					 u32 desc_addr, u32 buff_addr, u32 size)
>   {
> -	u32 action[] = {
> -		INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER,
> -		desc_addr,
> -		sizeof(struct guc_ct_buffer_desc),
> -		type
> +	u32 request[HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN] = {
> +		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
> +		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
> +		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_REGISTER_CTB),
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE, size / SZ_4K - 1) |
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE, type),
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR, desc_addr),
> +		FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR, buff_addr),
>   	};
>   
> -	/* Can't use generic send(), CT registration must go over MMIO */
> -	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
> +	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
> +	GEM_BUG_ON(size % SZ_4K);
> +
> +	/* CT registration must go over MMIO */
> +	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
>   }
>   
> -static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
> +static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
> +			      u32 desc_addr, u32 buff_addr, u32 size)
>   {
> -	int err = guc_action_register_ct_buffer(ct_to_guc(ct), desc_addr, type);
> +	int err;
>   
> +	err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
> +					    desc_addr, buff_addr, size);
>   	if (unlikely(err))
>   		CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n",
>   			 guc_ct_buffer_type_to_str(type), err);
> @@ -166,14 +171,17 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 desc_addr, u32 type)
>   
>   static int guc_action_deregister_ct_buffer(struct intel_guc *guc, u32 type)
>   {
> -	u32 action[] = {
> -		INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER,
> -		CTB_OWNER_HOST,
> -		type
> +	u32 request[HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN] = {
> +		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
> +		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
> +		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_DEREGISTER_CTB),
> +		FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type),
>   	};
>   
> -	/* Can't use generic send(), CT deregistration must go over MMIO */
> -	return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0);
> +	GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST);
> +
> +	/* CT deregistration must go over MMIO */
> +	return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0);
>   }
>   
>   static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type)
> @@ -261,7 +269,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct)
>   int intel_guc_ct_enable(struct intel_guc_ct *ct)
>   {
>   	struct intel_guc *guc = ct_to_guc(ct);
> -	u32 base, cmds;
> +	u32 base, desc, cmds;
>   	void *blob;
>   	int err;
>   
> @@ -277,23 +285,26 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>   	GEM_BUG_ON(blob != ct->ctbs.send.desc);
>   
>   	/* (re)initialize descriptors */
> -	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
> -	guc_ct_buffer_reset(&ct->ctbs.send, cmds);
> -
> -	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
> -	guc_ct_buffer_reset(&ct->ctbs.recv, cmds);
> +	guc_ct_buffer_reset(&ct->ctbs.send);
> +	guc_ct_buffer_reset(&ct->ctbs.recv);
>   
>   	/*
>   	 * Register both CT buffers starting with RECV buffer.
>   	 * Descriptors are in first half of the blob.
>   	 */
> -	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.recv.desc, blob),
> -				 INTEL_GUC_CT_BUFFER_TYPE_RECV);
> +	desc = base + ptrdiff(ct->ctbs.recv.desc, blob);
> +	cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
> +	err = ct_register_buffer(ct, GUC_CTB_TYPE_GUC2HOST,
> +				 desc, cmds, ct->ctbs.recv.size * 4);
> +
>   	if (unlikely(err))
>   		goto err_out;
>   
> -	err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.send.desc, blob),
> -				 INTEL_GUC_CT_BUFFER_TYPE_SEND);
> +	desc = base + ptrdiff(ct->ctbs.send.desc, blob);
> +	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
> +	err = ct_register_buffer(ct, GUC_CTB_TYPE_HOST2GUC,
> +				 desc, cmds, ct->ctbs.send.size * 4);
> +
>   	if (unlikely(err))
>   		goto err_deregister;
>   
> @@ -302,7 +313,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>   	return 0;
>   
>   err_deregister:
> -	ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
> +	ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>   err_out:
>   	CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err));
>   	return err;
> @@ -321,8 +332,8 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
>   	ct->enabled = false;
>   
>   	if (intel_guc_is_fw_running(guc)) {
> -		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_SEND);
> -		ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
> +		ct_deregister_buffer(ct, GUC_CTB_TYPE_HOST2GUC);
> +		ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>   	}
>   }
>   
> @@ -354,24 +365,6 @@ static void write_barrier(struct intel_guc_ct *ct)
>   	}
>   }
>   
> -/**
> - * DOC: CTB Host to GuC request
> - *
> - * Format of the CTB Host to GuC request message is as follows::
> - *
> - *      +------------+---------+---------+---------+---------+
> - *      |   msg[0]   |   [1]   |   [2]   |   ...   |  [n-1]  |
> - *      +------------+---------+---------+---------+---------+
> - *      |   MESSAGE  |       MESSAGE PAYLOAD                 |
> - *      +   HEADER   +---------+---------+---------+---------+
> - *      |            |    0    |    1    |   ...   |    n    |
> - *      +============+=========+=========+=========+=========+
> - *      |  len >= 1  |  FENCE  |     request specific data   |
> - *      +------+-----+---------+---------+---------+---------+
> - *
> - *                   ^-----------------len-------------------^
> - */
> -
>   static int ct_write(struct intel_guc_ct *ct,
>   		    const u32 *action,
>   		    u32 len /* in dwords */,
> @@ -384,20 +377,22 @@ static int ct_write(struct intel_guc_ct *ct,
>   	u32 size = ctb->size;
>   	u32 used;
>   	u32 header;
> +	u32 hxg;
>   	u32 *cmds = ctb->cmds;
>   	unsigned int i;
>   
> -	if (unlikely(desc->is_in_error))
> +	if (unlikely(ctb->broken))
>   		return -EPIPE;
>   
> -	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
> -		     (tail | head) >= size))
> +	if (unlikely(desc->status))
>   		goto corrupted;
>   
> -	/* later calculations will be done in dwords */
> -	head /= 4;
> -	tail /= 4;
> -	size /= 4;
> +	if (unlikely((tail | head) >= size)) {
> +		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
> +			 head, tail, size);
> +		desc->status |= GUC_CTB_STATUS_OVERFLOW;
> +		goto corrupted;
> +	}
>   
>   	/*
>   	 * tail == head condition indicates empty. GuC FW does not support
> @@ -413,22 +408,25 @@ static int ct_write(struct intel_guc_ct *ct,
>   		return -ENOSPC;
>   
>   	/*
> -	 * Write the message. The format is the following:
> -	 * DW0: header (including action code)
> -	 * DW1: fence
> -	 * DW2+: action data
> +	 * dw0: CT header (including fence)
> +	 * dw1: HXG header (including action code)
> +	 * dw2+: action data
>   	 */
> -	header = (len << GUC_CT_MSG_LEN_SHIFT) |
> -		 GUC_CT_MSG_SEND_STATUS |
> -		 (action[0] << GUC_CT_MSG_ACTION_SHIFT);
> +	header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) |
> +		 FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) |
> +		 FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence);
>   
> -	CT_DEBUG(ct, "writing %*ph %*ph %*ph\n",
> -		 4, &header, 4, &fence, 4 * (len - 1), &action[1]);
> +	hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
> +	      FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION |
> +			 GUC_HXG_REQUEST_MSG_0_DATA0, action[0]);
> +
> +	CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n",
> +		 tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]);
>   
>   	cmds[tail] = header;
>   	tail = (tail + 1) % size;
>   
> -	cmds[tail] = fence;
> +	cmds[tail] = hxg;
>   	tail = (tail + 1) % size;
>   
>   	for (i = 1; i < len; i++) {
> @@ -443,14 +441,15 @@ static int ct_write(struct intel_guc_ct *ct,
>   	 */
>   	write_barrier(ct);
>   
> -	/* now update desc tail (back in bytes) */
> -	desc->tail = tail * 4;
> +	/* now update descriptor */
> +	WRITE_ONCE(desc->tail, tail);
> +
>   	return 0;
>   
>   corrupted:
> -	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
> -		 desc->addr, desc->head, desc->tail, desc->size);
> -	desc->is_in_error = 1;
> +	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
> +		 desc->head, desc->tail, desc->status);
> +	ctb->broken = true;
>   	return -EPIPE;
>   }
>   
> @@ -477,7 +476,9 @@ static int wait_for_ct_request_update(struct ct_request *req, u32 *status)
>   	 * up to that length of time, then switch to a slower sleep-wait loop.
>   	 * No GuC command should ever take longer than 10ms.
>   	 */
> -#define done INTEL_GUC_MSG_IS_RESPONSE(READ_ONCE(req->status))
> +#define done \
> +	(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, READ_ONCE(req->status)) == \
> +	 GUC_HXG_ORIGIN_GUC)
>   	err = wait_for_us(done, 10);
>   	if (err)
>   		err = wait_for(done, 10);
> @@ -532,21 +533,21 @@ static int ct_send(struct intel_guc_ct *ct,
>   	if (unlikely(err))
>   		goto unlink;
>   
> -	if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) {
> +	if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) != GUC_HXG_TYPE_RESPONSE_SUCCESS) {
>   		err = -EIO;
>   		goto unlink;
>   	}
>   
>   	if (response_buf) {
>   		/* There shall be no data in the status */
> -		WARN_ON(INTEL_GUC_MSG_TO_DATA(request.status));
> +		WARN_ON(FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, request.status));
>   		/* Return actual response len */
>   		err = request.response_len;
>   	} else {
>   		/* There shall be no response payload */
>   		WARN_ON(request.response_len);
>   		/* Return data decoded from the status dword */
> -		err = INTEL_GUC_MSG_TO_DATA(*status);
> +		err = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, *status);
>   	}
>   
>   unlink:
> @@ -583,21 +584,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
>   	return ret;
>   }
>   
> -static inline unsigned int ct_header_get_len(u32 header)
> -{
> -	return (header >> GUC_CT_MSG_LEN_SHIFT) & GUC_CT_MSG_LEN_MASK;
> -}
> -
> -static inline unsigned int ct_header_get_action(u32 header)
> -{
> -	return (header >> GUC_CT_MSG_ACTION_SHIFT) & GUC_CT_MSG_ACTION_MASK;
> -}
> -
> -static inline bool ct_header_is_response(u32 header)
> -{
> -	return !!(header & GUC_CT_MSG_IS_RESPONSE);
> -}
> -
>   static struct ct_incoming_msg *ct_alloc_msg(u32 num_dwords)
>   {
>   	struct ct_incoming_msg *msg;
> @@ -630,17 +616,18 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   	unsigned int i;
>   	u32 header;
>   
> -	if (unlikely(desc->is_in_error))
> +	if (unlikely(ctb->broken))
>   		return -EPIPE;
>   
> -	if (unlikely(!IS_ALIGNED(head | tail, 4) ||
> -		     (tail | head) >= size))
> +	if (unlikely(desc->status))
>   		goto corrupted;
>   
> -	/* later calculations will be done in dwords */
> -	head /= 4;
> -	tail /= 4;
> -	size /= 4;
> +	if (unlikely((tail | head) >= size)) {
> +		CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
> +			 head, tail, size);
> +		desc->status |= GUC_CTB_STATUS_OVERFLOW;
> +		goto corrupted;
> +	}
>   
>   	/* tail == head condition indicates empty */
>   	available = tail - head;
> @@ -659,7 +646,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   	head = (head + 1) % size;
>   
>   	/* message len with header */
> -	len = ct_header_get_len(header) + 1;
> +	len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, header) + GUC_CTB_MSG_MIN_LEN;
>   	if (unlikely(len > (u32)available)) {
>   		CT_ERROR(ct, "Incomplete message %*ph %*ph %*ph\n",
>   			 4, &header,
> @@ -667,6 +654,7 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   			      size - head : available - 1), &cmds[head],
>   			 4 * (head + available - 1 > size ?
>   			      available - 1 - size + head : 0), &cmds[0]);
> +		desc->status |= GUC_CTB_STATUS_UNDERFLOW;
>   		goto corrupted;
>   	}
>   
> @@ -689,65 +677,36 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
>   	}
>   	CT_DEBUG(ct, "received %*ph\n", 4 * len, (*msg)->msg);
>   
> -	desc->head = head * 4;
> +	/* now update descriptor */
> +	WRITE_ONCE(desc->head, head);
> +
>   	return available - len;
>   
>   corrupted:
> -	CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u size=%u\n",
> -		 desc->addr, desc->head, desc->tail, desc->size);
> -	desc->is_in_error = 1;
> +	CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
> +		 desc->head, desc->tail, desc->status);
> +	ctb->broken = true;
>   	return -EPIPE;
>   }
>   
> -/**
> - * DOC: CTB GuC to Host response
> - *
> - * Format of the CTB GuC to Host response message is as follows::
> - *
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
> - *      +   HEADER   +---------+---------+---------+---------+---------+
> - *      |            |    0    |    1    |    2    |   ...   |    n    |
> - *      +============+=========+=========+=========+=========+=========+
> - *      |  len >= 2  |  FENCE  |  STATUS |   response specific data    |
> - *      +------+-----+---------+---------+---------+---------+---------+
> - *
> - *                   ^-----------------------len-----------------------^
> - */
> -
>   static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *response)
>   {
> -	u32 header = response->msg[0];
> -	u32 len = ct_header_get_len(header);
> -	u32 fence;
> -	u32 status;
> -	u32 datalen;
> +	u32 len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, response->msg[0]);
> +	u32 fence = FIELD_GET(GUC_CTB_MSG_0_FENCE, response->msg[0]);
> +	const u32 *hxg = &response->msg[GUC_CTB_MSG_MIN_LEN];
> +	const u32 *data = &hxg[GUC_HXG_MSG_MIN_LEN];
> +	u32 datalen = len - GUC_HXG_MSG_MIN_LEN;
>   	struct ct_request *req;
>   	unsigned long flags;
>   	bool found = false;
>   	int err = 0;
>   
> -	GEM_BUG_ON(!ct_header_is_response(header));
> -
> -	/* Response payload shall at least include fence and status */
> -	if (unlikely(len < 2)) {
> -		CT_ERROR(ct, "Corrupted response (len %u)\n", len);
> -		return -EPROTO;
> -	}
> -
> -	fence = response->msg[1];
> -	status = response->msg[2];
> -	datalen = len - 2;
> -
> -	/* Format of the status follows RESPONSE message */
> -	if (unlikely(!INTEL_GUC_MSG_IS_RESPONSE(status))) {
> -		CT_ERROR(ct, "Corrupted response (status %#x)\n", status);
> -		return -EPROTO;
> -	}
> +	GEM_BUG_ON(len < GUC_HXG_MSG_MIN_LEN);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]) != GUC_HXG_ORIGIN_GUC);
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_SUCCESS &&
> +		   FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_RESPONSE_FAILURE);
>   
> -	CT_DEBUG(ct, "response fence %u status %#x\n", fence, status);
> +	CT_DEBUG(ct, "response fence %u status %#x\n", fence, hxg[0]);
>   
>   	spin_lock_irqsave(&ct->requests.lock, flags);
>   	list_for_each_entry(req, &ct->requests.pending, link) {
> @@ -763,9 +722,9 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
>   			err = -EMSGSIZE;
>   		}
>   		if (datalen)
> -			memcpy(req->response_buf, response->msg + 3, 4 * datalen);
> +			memcpy(req->response_buf, data, 4 * datalen);
>   		req->response_len = datalen;
> -		WRITE_ONCE(req->status, status);
> +		WRITE_ONCE(req->status, hxg[0]);
>   		found = true;
>   		break;
>   	}
> @@ -786,14 +745,16 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
>   static int ct_process_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
>   {
>   	struct intel_guc *guc = ct_to_guc(ct);
> -	u32 header, action, len;
> +	const u32 *hxg;
>   	const u32 *payload;
> +	u32 hxg_len, action, len;
>   	int ret;
>   
> -	header = request->msg[0];
> -	payload = &request->msg[1];
> -	action = ct_header_get_action(header);
> -	len = ct_header_get_len(header);
> +	hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
> +	hxg_len = request->size - GUC_CTB_MSG_MIN_LEN;
> +	payload = &hxg[GUC_HXG_MSG_MIN_LEN];
> +	action = FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, hxg[0]);
> +	len = hxg_len - GUC_HXG_MSG_MIN_LEN;
>   
>   	CT_DEBUG(ct, "request %x %*ph\n", action, 4 * len, payload);
>   
> @@ -855,29 +816,12 @@ static void ct_incoming_request_worker_func(struct work_struct *w)
>   		queue_work(system_unbound_wq, &ct->requests.worker);
>   }
>   
> -/**
> - * DOC: CTB GuC to Host request
> - *
> - * Format of the CTB GuC to Host request message is as follows::
> - *
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
> - *      +------------+---------+---------+---------+---------+---------+
> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
> - *      +   HEADER   +---------+---------+---------+---------+---------+
> - *      |            |    0    |    1    |    2    |   ...   |    n    |
> - *      +============+=========+=========+=========+=========+=========+
> - *      |     len    |            request specific data                |
> - *      +------+-----+---------+---------+---------+---------+---------+
> - *
> - *                   ^-----------------------len-----------------------^
> - */
> -
> -static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
> +static int ct_handle_event(struct intel_guc_ct *ct, struct ct_incoming_msg *request)
>   {
> +	const u32 *hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
>   	unsigned long flags;
>   
> -	GEM_BUG_ON(ct_header_is_response(request->msg[0]));
> +	GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) != GUC_HXG_TYPE_EVENT);
>   
>   	spin_lock_irqsave(&ct->requests.lock, flags);
>   	list_add_tail(&request->link, &ct->requests.incoming);
> @@ -887,15 +831,53 @@ static int ct_handle_request(struct intel_guc_ct *ct, struct ct_incoming_msg *re
>   	return 0;
>   }
>   
> -static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
> +static int ct_handle_hxg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
>   {
> -	u32 header = msg->msg[0];
> +	u32 origin, type;
> +	u32 *hxg;
>   	int err;
>   
> -	if (ct_header_is_response(header))
> +	if (unlikely(msg->size < GUC_CTB_HXG_MSG_MIN_LEN))
> +		return -EBADMSG;
> +
> +	hxg = &msg->msg[GUC_CTB_MSG_MIN_LEN];
> +
> +	origin = FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]);
> +	if (unlikely(origin != GUC_HXG_ORIGIN_GUC)) {
> +		err = -EPROTO;
> +		goto failed;
> +	}
> +
> +	type = FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]);
> +	switch (type) {
> +	case GUC_HXG_TYPE_EVENT:
> +		err = ct_handle_event(ct, msg);
> +		break;
> +	case GUC_HXG_TYPE_RESPONSE_SUCCESS:
> +	case GUC_HXG_TYPE_RESPONSE_FAILURE:
>   		err = ct_handle_response(ct, msg);
> +		break;
> +	default:
> +		err = -EOPNOTSUPP;
> +	}
> +
> +	if (unlikely(err)) {
> +failed:
> +		CT_ERROR(ct, "Failed to handle HXG message (%pe) %*ph\n",
> +			 ERR_PTR(err), 4 * GUC_HXG_MSG_MIN_LEN, hxg);
> +	}
> +	return err;
> +}
> +
> +static void ct_handle_msg(struct intel_guc_ct *ct, struct ct_incoming_msg *msg)
> +{
> +	u32 format = FIELD_GET(GUC_CTB_MSG_0_FORMAT, msg->msg[0]);
> +	int err;
> +
> +	if (format == GUC_CTB_FORMAT_HXG)
> +		err = ct_handle_hxg(ct, msg);
>   	else
> -		err = ct_handle_request(ct, msg);
> +		err = -EOPNOTSUPP;
>   
>   	if (unlikely(err)) {
>   		CT_ERROR(ct, "Failed to process CT message (%pe) %*ph\n",
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> index cb222f202301..1ae2dde6db93 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> @@ -31,13 +31,15 @@ struct intel_guc;
>    * @lock: protects access to the commands buffer and buffer descriptor
>    * @desc: pointer to the buffer descriptor
>    * @cmds: pointer to the commands buffer
> - * @size: size of the commands buffer
> + * @size: size of the commands buffer in dwords
> + * @broken: flag to indicate if descriptor data is broken
>    */
>   struct intel_guc_ct_buffer {
>   	spinlock_t lock;
>   	struct guc_ct_buffer_desc *desc;
>   	u32 *cmds;
>   	u32 size;
> +	bool broken;
>   };
>   
>   
> @@ -59,7 +61,7 @@ struct intel_guc_ct {
>   	struct tasklet_struct receive_tasklet;
>   
>   	struct {
> -		u32 last_fence; /* last fence used to send request */
> +		u16 last_fence; /* last fence used to send request */
>   
>   		spinlock_t lock; /* protects pending requests list */
>   		struct list_head pending; /* requests waiting for response */
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> index e9a9d85e2aa3..617ec601648d 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> @@ -81,10 +81,8 @@
>   #define   GUC_LOG_ALLOC_IN_MEGABYTE	(1 << 3)
>   #define   GUC_LOG_CRASH_SHIFT		4
>   #define   GUC_LOG_CRASH_MASK		(0x3 << GUC_LOG_CRASH_SHIFT)
> -#define   GUC_LOG_DPC_SHIFT		6
> -#define   GUC_LOG_DPC_MASK	        (0x7 << GUC_LOG_DPC_SHIFT)
> -#define   GUC_LOG_ISR_SHIFT		9
> -#define   GUC_LOG_ISR_MASK	        (0x7 << GUC_LOG_ISR_SHIFT)
> +#define   GUC_LOG_DEBUG_SHIFT		6
> +#define   GUC_LOG_DEBUG_MASK	        (0xF << GUC_LOG_DEBUG_SHIFT)
>   #define   GUC_LOG_BUF_ADDR_SHIFT	12
>   
>   #define GUC_CTL_WA			1
> @@ -247,32 +245,14 @@ struct guc_stage_desc {
>   
>   /* Scheduling policy settings */
>   
> -/* Reset engine upon preempt failure */
> -#define POLICY_RESET_ENGINE		(1<<0)
> -/* Preempt to idle on quantum expiry */
> -#define POLICY_PREEMPT_TO_IDLE		(1<<1)
> -
> -#define POLICY_MAX_NUM_WI 15
> -#define POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
> -#define POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
> -#define POLICY_DEFAULT_PREEMPTION_TIME_US 500000
> -#define POLICY_DEFAULT_FAULT_TIME_US 250000
> -
> -struct guc_policy {
> -	/* Time for one workload to execute. (in micro seconds) */
> -	u32 execution_quantum;
> -	/* Time to wait for a preemption request to completed before issuing a
> -	 * reset. (in micro seconds). */
> -	u32 preemption_time;
> -	/* How much time to allow to run after the first fault is observed.
> -	 * Then preempt afterwards. (in micro seconds) */
> -	u32 fault_time;
> -	u32 policy_flags;
> -	u32 reserved[8];
> -} __packed;
> +#define GLOBAL_POLICY_MAX_NUM_WI 15
> +
> +/* Don't reset an engine upon preemption failure */
> +#define GLOBAL_POLICY_DISABLE_ENGINE_RESET				BIT(0)
> +
> +#define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
>   
>   struct guc_policies {
> -	struct guc_policy policy[GUC_CLIENT_PRIORITY_NUM][GUC_MAX_ENGINE_CLASSES];
>   	u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
>   	/* In micro seconds. How much time to allow before DPC processing is
>   	 * called back via interrupt (to prevent DPC queue drain starving).
> @@ -286,6 +266,7 @@ struct guc_policies {
>   	 * idle. */
>   	u32 max_num_work_items;
>   
> +	u32 global_flags;
>   	u32 reserved[4];
>   } __packed;
>   
> @@ -311,29 +292,13 @@ struct guc_gt_system_info {
>   	u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
>   } __packed;
>   
> -/* Clients info */
> -struct guc_ct_pool_entry {
> -	struct guc_ct_buffer_desc desc;
> -	u32 reserved[7];
> -} __packed;
> -
> -#define GUC_CT_POOL_SIZE	2
> -
> -struct guc_clients_info {
> -	u32 clients_num;
> -	u32 reserved0[13];
> -	u32 ct_pool_addr;
> -	u32 ct_pool_count;
> -	u32 reserved[4];
> -} __packed;
> -
>   /* GuC Additional Data Struct */
>   struct guc_ads {
>   	struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
>   	u32 reserved0;
>   	u32 scheduler_policies;
>   	u32 gt_system_info;
> -	u32 clients_info;
> +	u32 reserved1;
>   	u32 control_data;
>   	u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
>   	u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
> @@ -344,8 +309,7 @@ struct guc_ads {
>   /* GuC logging structures */
>   
>   enum guc_log_buffer_type {
> -	GUC_ISR_LOG_BUFFER,
> -	GUC_DPC_LOG_BUFFER,
> +	GUC_DEBUG_LOG_BUFFER,
>   	GUC_CRASH_DUMP_LOG_BUFFER,
>   	GUC_MAX_LOG_BUFFER
>   };
> @@ -414,23 +378,6 @@ struct guc_shared_ctx_data {
>   	struct guc_ctx_report preempt_ctx_report[GUC_MAX_ENGINES_NUM];
>   } __packed;
>   
> -#define __INTEL_GUC_MSG_GET(T, m) \
> -	(((m) & INTEL_GUC_MSG_ ## T ## _MASK) >> INTEL_GUC_MSG_ ## T ## _SHIFT)
> -#define INTEL_GUC_MSG_TO_TYPE(m)	__INTEL_GUC_MSG_GET(TYPE, m)
> -#define INTEL_GUC_MSG_TO_DATA(m)	__INTEL_GUC_MSG_GET(DATA, m)
> -#define INTEL_GUC_MSG_TO_CODE(m)	__INTEL_GUC_MSG_GET(CODE, m)
> -
> -#define __INTEL_GUC_MSG_TYPE_IS(T, m) \
> -	(INTEL_GUC_MSG_TO_TYPE(m) == INTEL_GUC_MSG_TYPE_ ## T)
> -#define INTEL_GUC_MSG_IS_REQUEST(m)	__INTEL_GUC_MSG_TYPE_IS(REQUEST, m)
> -#define INTEL_GUC_MSG_IS_RESPONSE(m)	__INTEL_GUC_MSG_TYPE_IS(RESPONSE, m)
> -
> -#define INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(m) \
> -	 (typecheck(u32, (m)) && \
> -	  ((m) & (INTEL_GUC_MSG_TYPE_MASK | INTEL_GUC_MSG_CODE_MASK)) == \
> -	  ((INTEL_GUC_MSG_TYPE_RESPONSE << INTEL_GUC_MSG_TYPE_SHIFT) | \
> -	   (INTEL_GUC_RESPONSE_STATUS_SUCCESS << INTEL_GUC_MSG_CODE_SHIFT)))
> -
>   /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
>   enum intel_guc_recv_message {
>   	INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> index c36d5eb5bbb9..ac0931f0374b 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> @@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct intel_guc_log *log,
>   static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type)
>   {
>   	switch (type) {
> -	case GUC_ISR_LOG_BUFFER:
> -		return ISR_BUFFER_SIZE;
> -	case GUC_DPC_LOG_BUFFER:
> -		return DPC_BUFFER_SIZE;
> +	case GUC_DEBUG_LOG_BUFFER:
> +		return DEBUG_BUFFER_SIZE;
>   	case GUC_CRASH_DUMP_LOG_BUFFER:
>   		return CRASH_BUFFER_SIZE;
>   	default:
> @@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
>   	src_data += PAGE_SIZE;
>   	dst_data += PAGE_SIZE;
>   
> -	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> +	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
>   		/*
>   		 * Make a copy of the state structure, inside GuC log buffer
>   		 * (which is uncached mapped), on the stack to avoid reading
> @@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
>   	 *  +===============================+ 00B
>   	 *  |    Crash dump state header    |
>   	 *  +-------------------------------+ 32B
> -	 *  |       DPC state header        |
> +	 *  |      Debug state header       |
>   	 *  +-------------------------------+ 64B
> -	 *  |       ISR state header        |
> -	 *  +-------------------------------+ 96B
>   	 *  |                               |
>   	 *  +===============================+ PAGE_SIZE (4KB)
>   	 *  |        Crash Dump logs        |
>   	 *  +===============================+ + CRASH_SIZE
> -	 *  |           DPC logs            |
> -	 *  +===============================+ + DPC_SIZE
> -	 *  |           ISR logs            |
> -	 *  +===============================+ + ISR_SIZE
> +	 *  |          Debug logs           |
> +	 *  +===============================+ + DEBUG_SIZE
>   	 */
> -	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
> -			ISR_BUFFER_SIZE;
> +	guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
>   
>   	vma = intel_guc_allocate_vma(guc, guc_log_size);
>   	if (IS_ERR(vma)) {
> @@ -675,10 +668,8 @@ static const char *
>   stringify_guc_log_type(enum guc_log_buffer_type type)
>   {
>   	switch (type) {
> -	case GUC_ISR_LOG_BUFFER:
> -		return "ISR";
> -	case GUC_DPC_LOG_BUFFER:
> -		return "DPC";
> +	case GUC_DEBUG_LOG_BUFFER:
> +		return "DEBUG";
>   	case GUC_CRASH_DUMP_LOG_BUFFER:
>   		return "CRASH";
>   	default:
> @@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p)
>   
>   	drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
>   
> -	for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> +	for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
>   		drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
>   			   stringify_guc_log_type(type),
>   			   log->stats[type].flush,
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> index 11fccd0b2294..ac1ee1d5ce10 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> @@ -17,12 +17,10 @@ struct intel_guc;
>   
>   #ifdef CONFIG_DRM_I915_DEBUG_GUC
>   #define CRASH_BUFFER_SIZE	SZ_2M
> -#define DPC_BUFFER_SIZE		SZ_8M
> -#define ISR_BUFFER_SIZE		SZ_8M
> +#define DEBUG_BUFFER_SIZE	SZ_16M
>   #else
>   #define CRASH_BUFFER_SIZE	SZ_8K
> -#define DPC_BUFFER_SIZE		SZ_32K
> -#define ISR_BUFFER_SIZE		SZ_32K
> +#define DEBUG_BUFFER_SIZE	SZ_64K
>   #endif
>   
>   /*
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
> index df647c9a8d56..9f23e9de3237 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
> @@ -48,19 +48,19 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
>    * firmware as TGL.
>    */
>   #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \
> -	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
> -	fw_def(ROCKETLAKE,  0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
> -	fw_def(TIGERLAKE,   0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7, 5, 0)) \
> -	fw_def(JASPERLAKE,  0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
> -	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9, 0, 0)) \
> -	fw_def(ICELAKE,     0, guc_def(icl, 49, 0, 1), huc_def(icl,  9, 0, 0)) \
> -	fw_def(COMETLAKE,   5, guc_def(cml, 49, 0, 1), huc_def(cml,  4, 0, 0)) \
> -	fw_def(COMETLAKE,   0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
> -	fw_def(COFFEELAKE,  0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
> -	fw_def(GEMINILAKE,  0, guc_def(glk, 49, 0, 1), huc_def(glk,  4, 0, 0)) \
> -	fw_def(KABYLAKE,    0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4, 0, 0)) \
> -	fw_def(BROXTON,     0, guc_def(bxt, 49, 0, 1), huc_def(bxt,  2, 0, 0)) \
> -	fw_def(SKYLAKE,     0, guc_def(skl, 49, 0, 1), huc_def(skl,  2, 0, 0))
> +	fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
> +	fw_def(ROCKETLAKE,  0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
> +	fw_def(TIGERLAKE,   0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7, 5, 0)) \
> +	fw_def(JASPERLAKE,  0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
> +	fw_def(ELKHARTLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9, 0, 0)) \
> +	fw_def(ICELAKE,     0, guc_def(icl, 62, 0, 0), huc_def(icl,  9, 0, 0)) \
> +	fw_def(COMETLAKE,   5, guc_def(cml, 62, 0, 0), huc_def(cml,  4, 0, 0)) \
> +	fw_def(COMETLAKE,   0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
> +	fw_def(COFFEELAKE,  0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
> +	fw_def(GEMINILAKE,  0, guc_def(glk, 62, 0, 0), huc_def(glk,  4, 0, 0)) \
> +	fw_def(KABYLAKE,    0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4, 0, 0)) \
> +	fw_def(BROXTON,     0, guc_def(bxt, 62, 0, 0), huc_def(bxt,  2, 0, 0)) \
> +	fw_def(SKYLAKE,     0, guc_def(skl, 62, 0, 0), huc_def(skl,  2, 0, 0))
>   
>   #define __MAKE_UC_FW_PATH(prefix_, name_, major_, minor_, patch_) \
>   	"i915/" \

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^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0
  2021-06-17  1:41     ` [Intel-gfx] " Daniele Ceraolo Spurio
@ 2021-06-17  6:24       ` Michal Wajdeczko
  -1 siblings, 0 replies; 19+ messages in thread
From: Michal Wajdeczko @ 2021-06-17  6:24 UTC (permalink / raw)
  To: Daniele Ceraolo Spurio, Matthew Brost, intel-gfx, dri-devel
  Cc: john.c.harrison



On 17.06.2021 03:41, Daniele Ceraolo Spurio wrote:
> 
> 
> On 6/15/2021 5:13 PM, Matthew Brost wrote:
>> From: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>
>> Most of the changes to the 62.0.0 firmware revolved around CTB
>> communication channel. Conform to the new (stable) CTB protocol.
>>
>> v2:
>>   (Michal)
>>    Add values back to kernel DOC for actions
>>   (Docs)
>>    Add 'CT buffer' back in to fix warning
>>
>> Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
>> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
>> ---
>>   .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
>>   .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
>>   .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
>>   drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
>>   drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
>>   11 files changed, 527 insertions(+), 421 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> index 90efef8a73e4..2d6198e63ebe 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> @@ -6,6 +6,113 @@
>>   #ifndef _ABI_GUC_ACTIONS_ABI_H
>>   #define _ABI_GUC_ACTIONS_ABI_H
>>   +/**
>> + * DOC: HOST2GUC_REGISTER_CTB
>> + *
>> + * This message is used as part of the `CTB based communication`_ setup.
>> + *
>> + * This message must be sent as `MMIO HXG Message`_.
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_HOST_                                |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_REQUEST_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 27:16 | DATA0 =
>> MBZ                                                  |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_REGISTER_CTB` =
>> 0x4505        |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 | 31:12 | RESERVED =
>> MBZ                                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 | **TYPE** - type for the `CT
>> Buffer`_                         |
>> + *  |   |      
>> |                                                              |
>> + *  |   |       |   - _`GUC_CTB_TYPE_HOST2GUC` =
>> 0                             |
>> + *  |   |       |   - _`GUC_CTB_TYPE_GUC2HOST` =
>> 1                             |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | **SIZE** - size of the `CT Buffer`_ in 4K units
>> minus 1      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 2 |  31:0 | **DESC_ADDR** - GGTT address of the `CTB
>> Descriptor`_        |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 3 |  31:0 | **BUFF_ADDF** - GGTT address of the `CT
>> Buffer`_             |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_GUC_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  27:0 | DATA0 =
>> MBZ                                                  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +#define GUC_ACTION_HOST2GUC_REGISTER_CTB        0x4505
>> +
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN       
>> (GUC_HXG_REQUEST_MSG_MIN_LEN + 3u)
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_0_MBZ       
>> GUC_HXG_REQUEST_MSG_0_DATA0
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_MBZ        (0xfffff << 12)
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE    (0xf << 8)
>> +#define   GUC_CTB_TYPE_HOST2GUC                0u
>> +#define   GUC_CTB_TYPE_GUC2HOST                1u
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE    (0xff << 0)
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR   
>> GUC_HXG_REQUEST_MSG_n_DATAn
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR   
>> GUC_HXG_REQUEST_MSG_n_DATAn
>> +
>> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_LEN       
>> GUC_HXG_RESPONSE_MSG_MIN_LEN
>> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_0_MBZ   
>> GUC_HXG_RESPONSE_MSG_0_DATA0
>> +
>> +/**
>> + * DOC: HOST2GUC_DEREGISTER_CTB
>> + *
>> + * This message is used as part of the `CTB based communication`_
>> teardown.
>> + *
>> + * This message must be sent as `MMIO HXG Message`_.
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_HOST_                                |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_REQUEST_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 27:16 | DATA0 =
>> MBZ                                                  |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_DEREGISTER_CTB` =
>> 0x4506      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 | 31:12 | RESERVED =
>> MBZ                                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 | **TYPE** - type of the `CT
>> Buffer`_                          |
>> + *  |   |      
>> |                                                              |
>> + *  |   |       | see
>> `GUC_ACTION_HOST2GUC_REGISTER_CTB`_                      |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | RESERVED =
>> MBZ                                               |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_GUC_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  27:0 | DATA0 =
>> MBZ                                                  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +#define GUC_ACTION_HOST2GUC_DEREGISTER_CTB        0x4506
>> +
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN       
>> (GUC_HXG_REQUEST_MSG_MIN_LEN + 1u)
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_0_MBZ   
>> GUC_HXG_REQUEST_MSG_0_DATA0
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ    (0xfffff << 12)
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE    (0xf << 8)
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ2    (0xff << 0)
>> +
>> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_LEN   
>> GUC_HXG_RESPONSE_MSG_MIN_LEN
>> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_0_MBZ   
>> GUC_HXG_RESPONSE_MSG_0_DATA0
>> +
>> +/* legacy definitions */
>> +
>>   enum intel_guc_action {
>>       INTEL_GUC_ACTION_DEFAULT = 0x0,
>>       INTEL_GUC_ACTION_REQUEST_PREEMPTION = 0x2,
>> diff --git
>> a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> index d38935f47ecf..29fc93a8b5be 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> @@ -7,6 +7,110 @@
>>   #define _ABI_GUC_COMMUNICATION_CTB_ABI_H
>>     #include <linux/types.h>
>> +#include <linux/build_bug.h>
>> +
>> +#include "guc_messages_abi.h"
>> +
>> +/**
>> + * DOC: CT Buffer
>> + *
>> + * Circular buffer used to send / receive CTBs (H2G or G2H)
> 
> nit: the CTB is not used to send CTBs, but to send messages. Can fix
> while pushing.

and to be more precisely, not H2G or G2H messages, but
	" to send generic `CTB Message`_ "
as H2G or G2H (again more precisely `CTB HXG Message`_) is just a
specific type of message

> 
> For the rest I couldn't spot anything that didn't match what was already
> reviewed, so:
> 
> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> 
> Daniele
> 
>> + */
>> +
>> +/**
>> + * DOC: CTB Descriptor
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |  31:0 | **HEAD** - offset (in dwords) to the last dword
>> that was     |
>> + *  |   |       | read from the `CT
>> Buffer`_.                                  |
>> + *  |   |       | It can only be updated by the
>> receiver.                      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 |  31:0 | **TAIL** - offset (in dwords) to the last dword
>> that was     |
>> + *  |   |       | written to the `CT
>> Buffer`_.                                 |
>> + *  |   |       | It can only be updated by the
>> sender.                        |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 2 |  31:0 | **STATUS** - status of the
>> CTB                               |
>> + *  |   |      
>> |                                                              |
>> + *  |   |       |   - _`GUC_CTB_STATUS_NO_ERROR` = 0 (normal
>> operation)        |
>> + *  |   |       |   - _`GUC_CTB_STATUS_OVERFLOW` = 1 (head/tail too
>> large)     |
>> + *  |   |       |   - _`GUC_CTB_STATUS_UNDERFLOW` = 2 (truncated
>> message)      |
>> + *  |   |       |   - _`GUC_CTB_STATUS_MISMATCH` = 4 (head/tail
>> modified)      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |...|       | RESERVED =
>> MBZ                                               |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 15|  31:0 | RESERVED =
>> MBZ                                               |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +
>> +struct guc_ct_buffer_desc {
>> +    u32 head;
>> +    u32 tail;
>> +    u32 status;
>> +#define GUC_CTB_STATUS_NO_ERROR                0
>> +#define GUC_CTB_STATUS_OVERFLOW                (1 << 0)
>> +#define GUC_CTB_STATUS_UNDERFLOW            (1 << 1)
>> +#define GUC_CTB_STATUS_MISMATCH                (1 << 2)
>> +    u32 reserved[13];
>> +} __packed;
>> +static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
>> +
>> +/**
>> + * DOC: CTB Message
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 | 31:16 | **FENCE** - message
>> identifier                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 15:12 | **FORMAT** - format of the CTB
>> message                       |
>> + *  |   |       |  - _`GUC_CTB_FORMAT_HXG` = 0 - see `CTB HXG
>> Message`_        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 |
>> **RESERVED**                                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | **NUM_DWORDS** - length of the CTB message (w/o
>> header)      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 |  31:0 | optional (depends on
>> FORMAT)                                 |
>> + * 
>> +---+-------+                                                             
>> |
>> + *  |...|      
>> |                                                              |
>> + * 
>> +---+-------+                                                             
>> |
>> + *  | n |  31:0
>> |                                                              |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +
>> +#define GUC_CTB_MSG_MIN_LEN            1u
>> +#define GUC_CTB_MSG_MAX_LEN            256u
>> +#define GUC_CTB_MSG_0_FENCE            (0xffff << 16)
>> +#define GUC_CTB_MSG_0_FORMAT            (0xf << 12)
>> +#define   GUC_CTB_FORMAT_HXG            0u
>> +#define GUC_CTB_MSG_0_RESERVED            (0xf << 8)
>> +#define GUC_CTB_MSG_0_NUM_DWORDS        (0xff << 0)
>> +
>> +/**
>> + * DOC: CTB HXG Message
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 | 31:16 |
>> FENCE                                                        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 15:12 | FORMAT =
>> GUC_CTB_FORMAT_HXG_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 | RESERVED =
>> MBZ                                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG
>> message  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 |  31:0 | 
>> +--------------------------------------------------------+  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  |...|       |  |  Embedded `HXG
>> Message`_                               |  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  | n |  31:0 | 
>> +--------------------------------------------------------+  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +
>> +#define GUC_CTB_HXG_MSG_MIN_LEN        (GUC_CTB_MSG_MIN_LEN +
>> GUC_HXG_MSG_MIN_LEN)
>> +#define GUC_CTB_HXG_MSG_MAX_LEN        GUC_CTB_MSG_MAX_LEN
>>     /**
>>    * DOC: CTB based communication
>> @@ -60,28 +164,6 @@
>>    * - **flags**, holds various bits to control message handling
>>    */
>>   -/*
>> - * Describes single command transport buffer.
>> - * Used by both guc-master and clients.
>> - */
>> -struct guc_ct_buffer_desc {
>> -    u32 addr;        /* gfx address */
>> -    u64 host_private;    /* host private data */
>> -    u32 size;        /* size in bytes */
>> -    u32 head;        /* offset updated by GuC*/
>> -    u32 tail;        /* offset updated by owner */
>> -    u32 is_in_error;    /* error indicator */
>> -    u32 reserved1;
>> -    u32 reserved2;
>> -    u32 owner;        /* id of the channel owner */
>> -    u32 owner_sub_id;    /* owner-defined field for extra tracking */
>> -    u32 reserved[5];
>> -} __packed;
>> -
>> -/* Type of command transport buffer */
>> -#define INTEL_GUC_CT_BUFFER_TYPE_SEND    0x0u
>> -#define INTEL_GUC_CT_BUFFER_TYPE_RECV    0x1u
>> -
>>   /*
>>    * Definition of the command transport message header (DW0)
>>    *
>> diff --git
>> a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> index be066a62e9e0..bbf1ddb77434 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> @@ -7,46 +7,43 @@
>>   #define _ABI_GUC_COMMUNICATION_MMIO_ABI_H
>>     /**
>> - * DOC: MMIO based communication
>> + * DOC: GuC MMIO based communication
>>    *
>> - * The MMIO based communication between Host and GuC uses software
>> scratch
>> - * registers, where first register holds data treated as message header,
>> - * and other registers are used to hold message payload.
>> + * The MMIO based communication between Host and GuC relies on special
>> + * hardware registers which format could be defined by the software
>> + * (so called scratch registers).
>>    *
>> - * For Gen9+, GuC uses software scratch registers 0xC180-0xC1B8,
>> - * but no H2G command takes more than 8 parameters and the GuC FW
>> - * itself uses an 8-element array to store the H2G message.
>> + * Each MMIO based message, both Host to GuC (H2G) and GuC to Host (G2H)
>> + * messages, which maximum length depends on number of available scratch
>> + * registers, is directly written into those scratch registers.
>>    *
>> - *      +-----------+---------+---------+---------+
>> - *      |  MMIO[0]  | MMIO[1] |   ...   | MMIO[n] |
>> - *      +-----------+---------+---------+---------+
>> - *      | header    |      optional payload       |
>> - *      +======+====+=========+=========+=========+
>> - *      | 31:28|type|         |         |         |
>> - *      +------+----+         |         |         |
>> - *      | 27:16|data|         |         |         |
>> - *      +------+----+         |         |         |
>> - *      |  15:0|code|         |         |         |
>> - *      +------+----+---------+---------+---------+
>> + * For Gen9+, there are 16 software scratch registers 0xC180-0xC1B8,
>> + * but no H2G command takes more than 4 parameters and the GuC firmware
>> + * itself uses an 4-element array to store the H2G message.
>>    *
>> - * The message header consists of:
>> + * For Gen11+, there are additional 4 registers 0x190240-0x19024C, which
>> + * are, regardless on lower count, preferred over legacy ones.
>>    *
>> - * - **type**, indicates message type
>> - * - **code**, indicates message code, is specific for **type**
>> - * - **data**, indicates message data, optional, depends on **code**
>> - *
>> - * The following message **types** are supported:
>> - *
>> - * - **REQUEST**, indicates Host-to-GuC request, requested GuC action
>> code
>> - *   must be priovided in **code** field. Optional action specific
>> parameters
>> - *   can be provided in remaining payload registers or **data** field.
>> - *
>> - * - **RESPONSE**, indicates GuC-to-Host response from earlier GuC
>> request,
>> - *   action response status will be provided in **code** field. Optional
>> - *   response data can be returned in remaining payload registers or
>> **data**
>> - *   field.
>> + * The MMIO based communication is mainly used during driver
>> initialization
>> + * phase to setup the `CTB based communication`_ that will be used
>> afterwards.
>>    */
>>   -#define GUC_MAX_MMIO_MSG_LEN        8
>> +#define GUC_MAX_MMIO_MSG_LEN        4
>> +
>> +/**
>> + * DOC: MMIO HXG Message
>> + *
>> + * Format of the MMIO messages follows definitions of `HXG Message`_.
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |  31:0 | 
>> +--------------------------------------------------------+  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  |...|       |  |  Embedded `HXG
>> Message`_                               |  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  | n |  31:0 | 
>> +--------------------------------------------------------+  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>>     #endif /* _ABI_GUC_COMMUNICATION_MMIO_ABI_H */
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> index f147cb389a20..6661dcb02239 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> @@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct
>> intel_guc *guc)
>>         BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
>>       BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
>> -    BUILD_BUG_ON(!DPC_BUFFER_SIZE);
>> -    BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
>> -    BUILD_BUG_ON(!ISR_BUFFER_SIZE);
>> -    BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
>> +    BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
>> +    BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
>>         BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
>>               (GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
>> -    BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
>> -            (GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
>> -    BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
>> -            (GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
>> +    BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
>> +            (GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
>>         flags = GUC_LOG_VALID |
>>           GUC_LOG_NOTIFY_ON_HALF_FULL |
>>           FLAG |
>>           ((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
>> -        ((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
>> -        ((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
>> +        ((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
>>           (offset << GUC_LOG_BUF_ADDR_SHIFT);
>>         #undef UNIT
>> @@ -376,29 +371,27 @@ void intel_guc_fini(struct intel_guc *guc)
>>   /*
>>    * This function implements the MMIO based host to GuC interface.
>>    */
>> -int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32
>> len,
>> +int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request,
>> u32 len,
>>               u32 *response_buf, u32 response_buf_size)
>>   {
>> +    struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
>>       struct intel_uncore *uncore = guc_to_gt(guc)->uncore;
>> -    u32 status;
>> +    u32 header;
>>       int i;
>>       int ret;
>>         GEM_BUG_ON(!len);
>>       GEM_BUG_ON(len > guc->send_regs.count);
>>   -    /* We expect only action code */
>> -    GEM_BUG_ON(*action & ~INTEL_GUC_MSG_CODE_MASK);
>> -
>> -    /* If CT is available, we expect to use MMIO only during
>> init/fini */
>> -    GEM_BUG_ON(*action !=
>> INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
>> -           *action !=
>> INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, request[0]) !=
>> GUC_HXG_ORIGIN_HOST);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, request[0]) !=
>> GUC_HXG_TYPE_REQUEST);
>>         mutex_lock(&guc->send_mutex);
>>       intel_uncore_forcewake_get(uncore, guc->send_regs.fw_domains);
>>   +retry:
>>       for (i = 0; i < len; i++)
>> -        intel_uncore_write(uncore, guc_send_reg(guc, i), action[i]);
>> +        intel_uncore_write(uncore, guc_send_reg(guc, i), request[i]);
>>         intel_uncore_posting_read(uncore, guc_send_reg(guc, i - 1));
>>   @@ -410,30 +403,74 @@ int intel_guc_send_mmio(struct intel_guc *guc,
>> const u32 *action, u32 len,
>>        */
>>       ret = __intel_wait_for_register_fw(uncore,
>>                          guc_send_reg(guc, 0),
>> -                       INTEL_GUC_MSG_TYPE_MASK,
>> -                       INTEL_GUC_MSG_TYPE_RESPONSE <<
>> -                       INTEL_GUC_MSG_TYPE_SHIFT,
>> -                       10, 10, &status);
>> -    /* If GuC explicitly returned an error, convert it to -EIO */
>> -    if (!ret && !INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(status))
>> -        ret = -EIO;
>> +                       GUC_HXG_MSG_0_ORIGIN,
>> +                       FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
>> +                              GUC_HXG_ORIGIN_GUC),
>> +                       10, 10, &header);
>> +    if (unlikely(ret)) {
>> +timeout:
>> +        drm_err(&i915->drm, "mmio request %#x: no reply %x\n",
>> +            request[0], header);
>> +        goto out;
>> +    }
>>   -    if (ret) {
>> -        DRM_ERROR("MMIO: GuC action %#x failed with error %d %#x\n",
>> -              action[0], ret, status);
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) ==
>> GUC_HXG_TYPE_NO_RESPONSE_BUSY) {
>> +#define done ({ header = intel_uncore_read(uncore, guc_send_reg(guc,
>> 0)); \
>> +        FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) != GUC_HXG_ORIGIN_GUC
>> || \
>> +        FIELD_GET(GUC_HXG_MSG_0_TYPE, header) !=
>> GUC_HXG_TYPE_NO_RESPONSE_BUSY; })
>> +
>> +        ret = wait_for(done, 1000);
>> +        if (unlikely(ret))
>> +            goto timeout;
>> +        if (unlikely(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) !=
>> +                       GUC_HXG_ORIGIN_GUC))
>> +            goto proto;
>> +#undef done
>> +    }
>> +
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) ==
>> GUC_HXG_TYPE_NO_RESPONSE_RETRY) {
>> +        u32 reason = FIELD_GET(GUC_HXG_RETRY_MSG_0_REASON, header);
>> +
>> +        drm_dbg(&i915->drm, "mmio request %#x: retrying, reason %u\n",
>> +            request[0], reason);
>> +        goto retry;
>> +    }
>> +
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) ==
>> GUC_HXG_TYPE_RESPONSE_FAILURE) {
>> +        u32 hint = FIELD_GET(GUC_HXG_FAILURE_MSG_0_HINT, header);
>> +        u32 error = FIELD_GET(GUC_HXG_FAILURE_MSG_0_ERROR, header);
>> +
>> +        drm_err(&i915->drm, "mmio request %#x: failure %x/%u\n",
>> +            request[0], error, hint);
>> +        ret = -ENXIO;
>> +        goto out;
>> +    }
>> +
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) !=
>> GUC_HXG_TYPE_RESPONSE_SUCCESS) {
>> +proto:
>> +        drm_err(&i915->drm, "mmio request %#x: unexpected reply %#x\n",
>> +            request[0], header);
>> +        ret = -EPROTO;
>>           goto out;
>>       }
>>         if (response_buf) {
>> -        int count = min(response_buf_size, guc->send_regs.count - 1);
>> +        int count = min(response_buf_size, guc->send_regs.count);
>>   -        for (i = 0; i < count; i++)
>> +        GEM_BUG_ON(!count);
>> +
>> +        response_buf[0] = header;
>> +
>> +        for (i = 1; i < count; i++)
>>               response_buf[i] = intel_uncore_read(uncore,
>> -                                guc_send_reg(guc, i + 1));
>> -    }
>> +                                guc_send_reg(guc, i));
>>   -    /* Use data from the GuC response as our return value */
>> -    ret = INTEL_GUC_MSG_TO_DATA(status);
>> +        /* Use number of copied dwords as our return value */
>> +        ret = count;
>> +    } else {
>> +        /* Use data from the GuC response as our return value */
>> +        ret = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header);
>> +    }
>>     out:
>>       intel_uncore_forcewake_put(uncore, guc->send_regs.fw_domains);
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> index 9abfbc6edbd6..b82145652d57 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> @@ -24,10 +24,6 @@
>>    *      +---------------------------------------+
>>    *      | guc_gt_system_info                    |
>>    *      +---------------------------------------+
>> - *      | guc_clients_info                      |
>> - *      +---------------------------------------+
>> - *      | guc_ct_pool_entry[size]               |
>> - *      +---------------------------------------+
>>    *      | padding                               |
>>    *      +---------------------------------------+ <== 4K aligned
>>    *      | private data                          |
>> @@ -39,8 +35,6 @@ struct __guc_ads_blob {
>>       struct guc_ads ads;
>>       struct guc_policies policies;
>>       struct guc_gt_system_info system_info;
>> -    struct guc_clients_info clients_info;
>> -    struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
>>   } __packed;
>>     static u32 guc_ads_private_data_size(struct intel_guc *guc)
>> @@ -59,38 +53,15 @@ static u32 guc_ads_blob_size(struct intel_guc *guc)
>>              guc_ads_private_data_size(guc);
>>   }
>>   -static void guc_policy_init(struct guc_policy *policy)
>> -{
>> -    policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
>> -    policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
>> -    policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
>> -    policy->policy_flags = 0;
>> -}
>> -
>>   static void guc_policies_init(struct guc_policies *policies)
>>   {
>> -    struct guc_policy *policy;
>> -    u32 p, i;
>> -
>> -    policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
>> -    policies->max_num_work_items = POLICY_MAX_NUM_WI;
>> -
>> -    for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
>> -        for (i = 0; i < GUC_MAX_ENGINE_CLASSES; i++) {
>> -            policy = &policies->policy[p][i];
>> -
>> -            guc_policy_init(policy);
>> -        }
>> -    }
>> -
>> +    policies->dpc_promote_time =
>> GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
>> +    policies->max_num_work_items = GLOBAL_POLICY_MAX_NUM_WI;
>> +    /* Disable automatic resets as not yet supported. */
>> +    policies->global_flags = GLOBAL_POLICY_DISABLE_ENGINE_RESET;
>>       policies->is_valid = 1;
>>   }
>>   -static void guc_ct_pool_entries_init(struct guc_ct_pool_entry
>> *pool, u32 num)
>> -{
>> -    memset(pool, 0, num * sizeof(*pool));
>> -}
>> -
>>   static void guc_mapping_table_init(struct intel_gt *gt,
>>                      struct guc_gt_system_info *system_info)
>>   {
>> @@ -178,17 +149,9 @@ static void __guc_ads_init(struct intel_guc *guc)
>>         base = intel_guc_ggtt_offset(guc, guc->ads_vma);
>>   -    /* Clients info  */
>> -    guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
>> -
>> -    blob->clients_info.clients_num = 1;
>> -    blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
>> -    blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
>> -
>>       /* ADS */
>>       blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
>>       blob->ads.gt_system_info = base + ptr_offset(blob, system_info);
>> -    blob->ads.clients_info = base + ptr_offset(blob, clients_info);
>>         /* Private Data */
>>       blob->ads.private_data = base + guc_ads_private_data_offset(guc);
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> index 8f7b148fef58..43409044528e 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> @@ -103,61 +103,66 @@ void intel_guc_ct_init_early(struct intel_guc_ct
>> *ct)
>>   static inline const char *guc_ct_buffer_type_to_str(u32 type)
>>   {
>>       switch (type) {
>> -    case INTEL_GUC_CT_BUFFER_TYPE_SEND:
>> +    case GUC_CTB_TYPE_HOST2GUC:
>>           return "SEND";
>> -    case INTEL_GUC_CT_BUFFER_TYPE_RECV:
>> +    case GUC_CTB_TYPE_GUC2HOST:
>>           return "RECV";
>>       default:
>>           return "<invalid>";
>>       }
>>   }
>>   -static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc,
>> -                    u32 cmds_addr, u32 size)
>> +static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc)
>>   {
>>       memset(desc, 0, sizeof(*desc));
>> -    desc->addr = cmds_addr;
>> -    desc->size = size;
>> -    desc->owner = CTB_OWNER_HOST;
>>   }
>>   -static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb,
>> u32 cmds_addr)
>> +static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb)
>>   {
>> -    guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size);
>> +    ctb->broken = false;
>> +    guc_ct_buffer_desc_init(ctb->desc);
>>   }
>>     static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb,
>>                      struct guc_ct_buffer_desc *desc,
>> -                   u32 *cmds, u32 size)
>> +                   u32 *cmds, u32 size_in_bytes)
>>   {
>> -    GEM_BUG_ON(size % 4);
>> +    GEM_BUG_ON(size_in_bytes % 4);
>>         ctb->desc = desc;
>>       ctb->cmds = cmds;
>> -    ctb->size = size;
>> +    ctb->size = size_in_bytes / 4;
>>   -    guc_ct_buffer_reset(ctb, 0);
>> +    guc_ct_buffer_reset(ctb);
>>   }
>>   -static int guc_action_register_ct_buffer(struct intel_guc *guc,
>> -                     u32 desc_addr,
>> -                     u32 type)
>> +static int guc_action_register_ct_buffer(struct intel_guc *guc, u32
>> type,
>> +                     u32 desc_addr, u32 buff_addr, u32 size)
>>   {
>> -    u32 action[] = {
>> -        INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER,
>> -        desc_addr,
>> -        sizeof(struct guc_ct_buffer_desc),
>> -        type
>> +    u32 request[HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN] = {
>> +        FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
>> +        FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
>> +        FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION,
>> GUC_ACTION_HOST2GUC_REGISTER_CTB),
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE, size /
>> SZ_4K - 1) |
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE, type),
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR,
>> desc_addr),
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR,
>> buff_addr),
>>       };
>>   -    /* Can't use generic send(), CT registration must go over MMIO */
>> -    return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL,
>> 0);
>> +    GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type !=
>> GUC_CTB_TYPE_GUC2HOST);
>> +    GEM_BUG_ON(size % SZ_4K);
>> +
>> +    /* CT registration must go over MMIO */
>> +    return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request),
>> NULL, 0);
>>   }
>>   -static int ct_register_buffer(struct intel_guc_ct *ct, u32
>> desc_addr, u32 type)
>> +static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
>> +                  u32 desc_addr, u32 buff_addr, u32 size)
>>   {
>> -    int err = guc_action_register_ct_buffer(ct_to_guc(ct), desc_addr,
>> type);
>> +    int err;
>>   +    err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
>> +                        desc_addr, buff_addr, size);
>>       if (unlikely(err))
>>           CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n",
>>                guc_ct_buffer_type_to_str(type), err);
>> @@ -166,14 +171,17 @@ static int ct_register_buffer(struct
>> intel_guc_ct *ct, u32 desc_addr, u32 type)
>>     static int guc_action_deregister_ct_buffer(struct intel_guc *guc,
>> u32 type)
>>   {
>> -    u32 action[] = {
>> -        INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER,
>> -        CTB_OWNER_HOST,
>> -        type
>> +    u32 request[HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN] = {
>> +        FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
>> +        FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
>> +        FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION,
>> GUC_ACTION_HOST2GUC_DEREGISTER_CTB),
>> +        FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type),
>>       };
>>   -    /* Can't use generic send(), CT deregistration must go over
>> MMIO */
>> -    return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL,
>> 0);
>> +    GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type !=
>> GUC_CTB_TYPE_GUC2HOST);
>> +
>> +    /* CT deregistration must go over MMIO */
>> +    return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request),
>> NULL, 0);
>>   }
>>     static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type)
>> @@ -261,7 +269,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct)
>>   int intel_guc_ct_enable(struct intel_guc_ct *ct)
>>   {
>>       struct intel_guc *guc = ct_to_guc(ct);
>> -    u32 base, cmds;
>> +    u32 base, desc, cmds;
>>       void *blob;
>>       int err;
>>   @@ -277,23 +285,26 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>>       GEM_BUG_ON(blob != ct->ctbs.send.desc);
>>         /* (re)initialize descriptors */
>> -    cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
>> -    guc_ct_buffer_reset(&ct->ctbs.send, cmds);
>> -
>> -    cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
>> -    guc_ct_buffer_reset(&ct->ctbs.recv, cmds);
>> +    guc_ct_buffer_reset(&ct->ctbs.send);
>> +    guc_ct_buffer_reset(&ct->ctbs.recv);
>>         /*
>>        * Register both CT buffers starting with RECV buffer.
>>        * Descriptors are in first half of the blob.
>>        */
>> -    err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.recv.desc,
>> blob),
>> -                 INTEL_GUC_CT_BUFFER_TYPE_RECV);
>> +    desc = base + ptrdiff(ct->ctbs.recv.desc, blob);
>> +    cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
>> +    err = ct_register_buffer(ct, GUC_CTB_TYPE_GUC2HOST,
>> +                 desc, cmds, ct->ctbs.recv.size * 4);
>> +
>>       if (unlikely(err))
>>           goto err_out;
>>   -    err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.send.desc,
>> blob),
>> -                 INTEL_GUC_CT_BUFFER_TYPE_SEND);
>> +    desc = base + ptrdiff(ct->ctbs.send.desc, blob);
>> +    cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
>> +    err = ct_register_buffer(ct, GUC_CTB_TYPE_HOST2GUC,
>> +                 desc, cmds, ct->ctbs.send.size * 4);
>> +
>>       if (unlikely(err))
>>           goto err_deregister;
>>   @@ -302,7 +313,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>>       return 0;
>>     err_deregister:
>> -    ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
>> +    ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>>   err_out:
>>       CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err));
>>       return err;
>> @@ -321,8 +332,8 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
>>       ct->enabled = false;
>>         if (intel_guc_is_fw_running(guc)) {
>> -        ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_SEND);
>> -        ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
>> +        ct_deregister_buffer(ct, GUC_CTB_TYPE_HOST2GUC);
>> +        ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>>       }
>>   }
>>   @@ -354,24 +365,6 @@ static void write_barrier(struct intel_guc_ct *ct)
>>       }
>>   }
>>   -/**
>> - * DOC: CTB Host to GuC request
>> - *
>> - * Format of the CTB Host to GuC request message is as follows::
>> - *
>> - *      +------------+---------+---------+---------+---------+
>> - *      |   msg[0]   |   [1]   |   [2]   |   ...   |  [n-1]  |
>> - *      +------------+---------+---------+---------+---------+
>> - *      |   MESSAGE  |       MESSAGE PAYLOAD                 |
>> - *      +   HEADER   +---------+---------+---------+---------+
>> - *      |            |    0    |    1    |   ...   |    n    |
>> - *      +============+=========+=========+=========+=========+
>> - *      |  len >= 1  |  FENCE  |     request specific data   |
>> - *      +------+-----+---------+---------+---------+---------+
>> - *
>> - *                   ^-----------------len-------------------^
>> - */
>> -
>>   static int ct_write(struct intel_guc_ct *ct,
>>               const u32 *action,
>>               u32 len /* in dwords */,
>> @@ -384,20 +377,22 @@ static int ct_write(struct intel_guc_ct *ct,
>>       u32 size = ctb->size;
>>       u32 used;
>>       u32 header;
>> +    u32 hxg;
>>       u32 *cmds = ctb->cmds;
>>       unsigned int i;
>>   -    if (unlikely(desc->is_in_error))
>> +    if (unlikely(ctb->broken))
>>           return -EPIPE;
>>   -    if (unlikely(!IS_ALIGNED(head | tail, 4) ||
>> -             (tail | head) >= size))
>> +    if (unlikely(desc->status))
>>           goto corrupted;
>>   -    /* later calculations will be done in dwords */
>> -    head /= 4;
>> -    tail /= 4;
>> -    size /= 4;
>> +    if (unlikely((tail | head) >= size)) {
>> +        CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
>> +             head, tail, size);
>> +        desc->status |= GUC_CTB_STATUS_OVERFLOW;
>> +        goto corrupted;
>> +    }
>>         /*
>>        * tail == head condition indicates empty. GuC FW does not support
>> @@ -413,22 +408,25 @@ static int ct_write(struct intel_guc_ct *ct,
>>           return -ENOSPC;
>>         /*
>> -     * Write the message. The format is the following:
>> -     * DW0: header (including action code)
>> -     * DW1: fence
>> -     * DW2+: action data
>> +     * dw0: CT header (including fence)
>> +     * dw1: HXG header (including action code)
>> +     * dw2+: action data
>>        */
>> -    header = (len << GUC_CT_MSG_LEN_SHIFT) |
>> -         GUC_CT_MSG_SEND_STATUS |
>> -         (action[0] << GUC_CT_MSG_ACTION_SHIFT);
>> +    header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) |
>> +         FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) |
>> +         FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence);
>>   -    CT_DEBUG(ct, "writing %*ph %*ph %*ph\n",
>> -         4, &header, 4, &fence, 4 * (len - 1), &action[1]);
>> +    hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
>> +          FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION |
>> +             GUC_HXG_REQUEST_MSG_0_DATA0, action[0]);
>> +
>> +    CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n",
>> +         tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]);
>>         cmds[tail] = header;
>>       tail = (tail + 1) % size;
>>   -    cmds[tail] = fence;
>> +    cmds[tail] = hxg;
>>       tail = (tail + 1) % size;
>>         for (i = 1; i < len; i++) {
>> @@ -443,14 +441,15 @@ static int ct_write(struct intel_guc_ct *ct,
>>        */
>>       write_barrier(ct);
>>   -    /* now update desc tail (back in bytes) */
>> -    desc->tail = tail * 4;
>> +    /* now update descriptor */
>> +    WRITE_ONCE(desc->tail, tail);
>> +
>>       return 0;
>>     corrupted:
>> -    CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u
>> size=%u\n",
>> -         desc->addr, desc->head, desc->tail, desc->size);
>> -    desc->is_in_error = 1;
>> +    CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
>> +         desc->head, desc->tail, desc->status);
>> +    ctb->broken = true;
>>       return -EPIPE;
>>   }
>>   @@ -477,7 +476,9 @@ static int wait_for_ct_request_update(struct
>> ct_request *req, u32 *status)
>>        * up to that length of time, then switch to a slower sleep-wait
>> loop.
>>        * No GuC command should ever take longer than 10ms.
>>        */
>> -#define done INTEL_GUC_MSG_IS_RESPONSE(READ_ONCE(req->status))
>> +#define done \
>> +    (FIELD_GET(GUC_HXG_MSG_0_ORIGIN, READ_ONCE(req->status)) == \
>> +     GUC_HXG_ORIGIN_GUC)
>>       err = wait_for_us(done, 10);
>>       if (err)
>>           err = wait_for(done, 10);
>> @@ -532,21 +533,21 @@ static int ct_send(struct intel_guc_ct *ct,
>>       if (unlikely(err))
>>           goto unlink;
>>   -    if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) {
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) !=
>> GUC_HXG_TYPE_RESPONSE_SUCCESS) {
>>           err = -EIO;
>>           goto unlink;
>>       }
>>         if (response_buf) {
>>           /* There shall be no data in the status */
>> -        WARN_ON(INTEL_GUC_MSG_TO_DATA(request.status));
>> +        WARN_ON(FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0,
>> request.status));
>>           /* Return actual response len */
>>           err = request.response_len;
>>       } else {
>>           /* There shall be no response payload */
>>           WARN_ON(request.response_len);
>>           /* Return data decoded from the status dword */
>> -        err = INTEL_GUC_MSG_TO_DATA(*status);
>> +        err = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, *status);
>>       }
>>     unlink:
>> @@ -583,21 +584,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct,
>> const u32 *action, u32 len,
>>       return ret;
>>   }
>>   -static inline unsigned int ct_header_get_len(u32 header)
>> -{
>> -    return (header >> GUC_CT_MSG_LEN_SHIFT) & GUC_CT_MSG_LEN_MASK;
>> -}
>> -
>> -static inline unsigned int ct_header_get_action(u32 header)
>> -{
>> -    return (header >> GUC_CT_MSG_ACTION_SHIFT) & GUC_CT_MSG_ACTION_MASK;
>> -}
>> -
>> -static inline bool ct_header_is_response(u32 header)
>> -{
>> -    return !!(header & GUC_CT_MSG_IS_RESPONSE);
>> -}
>> -
>>   static struct ct_incoming_msg *ct_alloc_msg(u32 num_dwords)
>>   {
>>       struct ct_incoming_msg *msg;
>> @@ -630,17 +616,18 @@ static int ct_read(struct intel_guc_ct *ct,
>> struct ct_incoming_msg **msg)
>>       unsigned int i;
>>       u32 header;
>>   -    if (unlikely(desc->is_in_error))
>> +    if (unlikely(ctb->broken))
>>           return -EPIPE;
>>   -    if (unlikely(!IS_ALIGNED(head | tail, 4) ||
>> -             (tail | head) >= size))
>> +    if (unlikely(desc->status))
>>           goto corrupted;
>>   -    /* later calculations will be done in dwords */
>> -    head /= 4;
>> -    tail /= 4;
>> -    size /= 4;
>> +    if (unlikely((tail | head) >= size)) {
>> +        CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
>> +             head, tail, size);
>> +        desc->status |= GUC_CTB_STATUS_OVERFLOW;
>> +        goto corrupted;
>> +    }
>>         /* tail == head condition indicates empty */
>>       available = tail - head;
>> @@ -659,7 +646,7 @@ static int ct_read(struct intel_guc_ct *ct, struct
>> ct_incoming_msg **msg)
>>       head = (head + 1) % size;
>>         /* message len with header */
>> -    len = ct_header_get_len(header) + 1;
>> +    len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, header) +
>> GUC_CTB_MSG_MIN_LEN;
>>       if (unlikely(len > (u32)available)) {
>>           CT_ERROR(ct, "Incomplete message %*ph %*ph %*ph\n",
>>                4, &header,
>> @@ -667,6 +654,7 @@ static int ct_read(struct intel_guc_ct *ct, struct
>> ct_incoming_msg **msg)
>>                     size - head : available - 1), &cmds[head],
>>                4 * (head + available - 1 > size ?
>>                     available - 1 - size + head : 0), &cmds[0]);
>> +        desc->status |= GUC_CTB_STATUS_UNDERFLOW;
>>           goto corrupted;
>>       }
>>   @@ -689,65 +677,36 @@ static int ct_read(struct intel_guc_ct *ct,
>> struct ct_incoming_msg **msg)
>>       }
>>       CT_DEBUG(ct, "received %*ph\n", 4 * len, (*msg)->msg);
>>   -    desc->head = head * 4;
>> +    /* now update descriptor */
>> +    WRITE_ONCE(desc->head, head);
>> +
>>       return available - len;
>>     corrupted:
>> -    CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u
>> size=%u\n",
>> -         desc->addr, desc->head, desc->tail, desc->size);
>> -    desc->is_in_error = 1;
>> +    CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
>> +         desc->head, desc->tail, desc->status);
>> +    ctb->broken = true;
>>       return -EPIPE;
>>   }
>>   -/**
>> - * DOC: CTB GuC to Host response
>> - *
>> - * Format of the CTB GuC to Host response message is as follows::
>> - *
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
>> - *      +   HEADER   +---------+---------+---------+---------+---------+
>> - *      |            |    0    |    1    |    2    |   ...   |    n    |
>> - *      +============+=========+=========+=========+=========+=========+
>> - *      |  len >= 2  |  FENCE  |  STATUS |   response specific data    |
>> - *      +------+-----+---------+---------+---------+---------+---------+
>> - *
>> - *                   ^-----------------------len-----------------------^
>> - */
>> -
>>   static int ct_handle_response(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *response)
>>   {
>> -    u32 header = response->msg[0];
>> -    u32 len = ct_header_get_len(header);
>> -    u32 fence;
>> -    u32 status;
>> -    u32 datalen;
>> +    u32 len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, response->msg[0]);
>> +    u32 fence = FIELD_GET(GUC_CTB_MSG_0_FENCE, response->msg[0]);
>> +    const u32 *hxg = &response->msg[GUC_CTB_MSG_MIN_LEN];
>> +    const u32 *data = &hxg[GUC_HXG_MSG_MIN_LEN];
>> +    u32 datalen = len - GUC_HXG_MSG_MIN_LEN;
>>       struct ct_request *req;
>>       unsigned long flags;
>>       bool found = false;
>>       int err = 0;
>>   -    GEM_BUG_ON(!ct_header_is_response(header));
>> -
>> -    /* Response payload shall at least include fence and status */
>> -    if (unlikely(len < 2)) {
>> -        CT_ERROR(ct, "Corrupted response (len %u)\n", len);
>> -        return -EPROTO;
>> -    }
>> -
>> -    fence = response->msg[1];
>> -    status = response->msg[2];
>> -    datalen = len - 2;
>> -
>> -    /* Format of the status follows RESPONSE message */
>> -    if (unlikely(!INTEL_GUC_MSG_IS_RESPONSE(status))) {
>> -        CT_ERROR(ct, "Corrupted response (status %#x)\n", status);
>> -        return -EPROTO;
>> -    }
>> +    GEM_BUG_ON(len < GUC_HXG_MSG_MIN_LEN);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]) !=
>> GUC_HXG_ORIGIN_GUC);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) !=
>> GUC_HXG_TYPE_RESPONSE_SUCCESS &&
>> +           FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) !=
>> GUC_HXG_TYPE_RESPONSE_FAILURE);
>>   -    CT_DEBUG(ct, "response fence %u status %#x\n", fence, status);
>> +    CT_DEBUG(ct, "response fence %u status %#x\n", fence, hxg[0]);
>>         spin_lock_irqsave(&ct->requests.lock, flags);
>>       list_for_each_entry(req, &ct->requests.pending, link) {
>> @@ -763,9 +722,9 @@ static int ct_handle_response(struct intel_guc_ct
>> *ct, struct ct_incoming_msg *r
>>               err = -EMSGSIZE;
>>           }
>>           if (datalen)
>> -            memcpy(req->response_buf, response->msg + 3, 4 * datalen);
>> +            memcpy(req->response_buf, data, 4 * datalen);
>>           req->response_len = datalen;
>> -        WRITE_ONCE(req->status, status);
>> +        WRITE_ONCE(req->status, hxg[0]);
>>           found = true;
>>           break;
>>       }
>> @@ -786,14 +745,16 @@ static int ct_handle_response(struct
>> intel_guc_ct *ct, struct ct_incoming_msg *r
>>   static int ct_process_request(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *request)
>>   {
>>       struct intel_guc *guc = ct_to_guc(ct);
>> -    u32 header, action, len;
>> +    const u32 *hxg;
>>       const u32 *payload;
>> +    u32 hxg_len, action, len;
>>       int ret;
>>   -    header = request->msg[0];
>> -    payload = &request->msg[1];
>> -    action = ct_header_get_action(header);
>> -    len = ct_header_get_len(header);
>> +    hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
>> +    hxg_len = request->size - GUC_CTB_MSG_MIN_LEN;
>> +    payload = &hxg[GUC_HXG_MSG_MIN_LEN];
>> +    action = FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, hxg[0]);
>> +    len = hxg_len - GUC_HXG_MSG_MIN_LEN;
>>         CT_DEBUG(ct, "request %x %*ph\n", action, 4 * len, payload);
>>   @@ -855,29 +816,12 @@ static void
>> ct_incoming_request_worker_func(struct work_struct *w)
>>           queue_work(system_unbound_wq, &ct->requests.worker);
>>   }
>>   -/**
>> - * DOC: CTB GuC to Host request
>> - *
>> - * Format of the CTB GuC to Host request message is as follows::
>> - *
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
>> - *      +   HEADER   +---------+---------+---------+---------+---------+
>> - *      |            |    0    |    1    |    2    |   ...   |    n    |
>> - *      +============+=========+=========+=========+=========+=========+
>> - *      |     len    |            request specific data                |
>> - *      +------+-----+---------+---------+---------+---------+---------+
>> - *
>> - *                   ^-----------------------len-----------------------^
>> - */
>> -
>> -static int ct_handle_request(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *request)
>> +static int ct_handle_event(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *request)
>>   {
>> +    const u32 *hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
>>       unsigned long flags;
>>   -    GEM_BUG_ON(ct_header_is_response(request->msg[0]));
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) !=
>> GUC_HXG_TYPE_EVENT);
>>         spin_lock_irqsave(&ct->requests.lock, flags);
>>       list_add_tail(&request->link, &ct->requests.incoming);
>> @@ -887,15 +831,53 @@ static int ct_handle_request(struct intel_guc_ct
>> *ct, struct ct_incoming_msg *re
>>       return 0;
>>   }
>>   -static void ct_handle_msg(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *msg)
>> +static int ct_handle_hxg(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *msg)
>>   {
>> -    u32 header = msg->msg[0];
>> +    u32 origin, type;
>> +    u32 *hxg;
>>       int err;
>>   -    if (ct_header_is_response(header))
>> +    if (unlikely(msg->size < GUC_CTB_HXG_MSG_MIN_LEN))
>> +        return -EBADMSG;
>> +
>> +    hxg = &msg->msg[GUC_CTB_MSG_MIN_LEN];
>> +
>> +    origin = FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]);
>> +    if (unlikely(origin != GUC_HXG_ORIGIN_GUC)) {
>> +        err = -EPROTO;
>> +        goto failed;
>> +    }
>> +
>> +    type = FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]);
>> +    switch (type) {
>> +    case GUC_HXG_TYPE_EVENT:
>> +        err = ct_handle_event(ct, msg);
>> +        break;
>> +    case GUC_HXG_TYPE_RESPONSE_SUCCESS:
>> +    case GUC_HXG_TYPE_RESPONSE_FAILURE:
>>           err = ct_handle_response(ct, msg);
>> +        break;
>> +    default:
>> +        err = -EOPNOTSUPP;
>> +    }
>> +
>> +    if (unlikely(err)) {
>> +failed:
>> +        CT_ERROR(ct, "Failed to handle HXG message (%pe) %*ph\n",
>> +             ERR_PTR(err), 4 * GUC_HXG_MSG_MIN_LEN, hxg);
>> +    }
>> +    return err;
>> +}
>> +
>> +static void ct_handle_msg(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *msg)
>> +{
>> +    u32 format = FIELD_GET(GUC_CTB_MSG_0_FORMAT, msg->msg[0]);
>> +    int err;
>> +
>> +    if (format == GUC_CTB_FORMAT_HXG)
>> +        err = ct_handle_hxg(ct, msg);
>>       else
>> -        err = ct_handle_request(ct, msg);
>> +        err = -EOPNOTSUPP;
>>         if (unlikely(err)) {
>>           CT_ERROR(ct, "Failed to process CT message (%pe) %*ph\n",
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> index cb222f202301..1ae2dde6db93 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> @@ -31,13 +31,15 @@ struct intel_guc;
>>    * @lock: protects access to the commands buffer and buffer descriptor
>>    * @desc: pointer to the buffer descriptor
>>    * @cmds: pointer to the commands buffer
>> - * @size: size of the commands buffer
>> + * @size: size of the commands buffer in dwords
>> + * @broken: flag to indicate if descriptor data is broken
>>    */
>>   struct intel_guc_ct_buffer {
>>       spinlock_t lock;
>>       struct guc_ct_buffer_desc *desc;
>>       u32 *cmds;
>>       u32 size;
>> +    bool broken;
>>   };
>>     @@ -59,7 +61,7 @@ struct intel_guc_ct {
>>       struct tasklet_struct receive_tasklet;
>>         struct {
>> -        u32 last_fence; /* last fence used to send request */
>> +        u16 last_fence; /* last fence used to send request */
>>             spinlock_t lock; /* protects pending requests list */
>>           struct list_head pending; /* requests waiting for response */
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> index e9a9d85e2aa3..617ec601648d 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> @@ -81,10 +81,8 @@
>>   #define   GUC_LOG_ALLOC_IN_MEGABYTE    (1 << 3)
>>   #define   GUC_LOG_CRASH_SHIFT        4
>>   #define   GUC_LOG_CRASH_MASK        (0x3 << GUC_LOG_CRASH_SHIFT)
>> -#define   GUC_LOG_DPC_SHIFT        6
>> -#define   GUC_LOG_DPC_MASK            (0x7 << GUC_LOG_DPC_SHIFT)
>> -#define   GUC_LOG_ISR_SHIFT        9
>> -#define   GUC_LOG_ISR_MASK            (0x7 << GUC_LOG_ISR_SHIFT)
>> +#define   GUC_LOG_DEBUG_SHIFT        6
>> +#define   GUC_LOG_DEBUG_MASK            (0xF << GUC_LOG_DEBUG_SHIFT)
>>   #define   GUC_LOG_BUF_ADDR_SHIFT    12
>>     #define GUC_CTL_WA            1
>> @@ -247,32 +245,14 @@ struct guc_stage_desc {
>>     /* Scheduling policy settings */
>>   -/* Reset engine upon preempt failure */
>> -#define POLICY_RESET_ENGINE        (1<<0)
>> -/* Preempt to idle on quantum expiry */
>> -#define POLICY_PREEMPT_TO_IDLE        (1<<1)
>> -
>> -#define POLICY_MAX_NUM_WI 15
>> -#define POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
>> -#define POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
>> -#define POLICY_DEFAULT_PREEMPTION_TIME_US 500000
>> -#define POLICY_DEFAULT_FAULT_TIME_US 250000
>> -
>> -struct guc_policy {
>> -    /* Time for one workload to execute. (in micro seconds) */
>> -    u32 execution_quantum;
>> -    /* Time to wait for a preemption request to completed before
>> issuing a
>> -     * reset. (in micro seconds). */
>> -    u32 preemption_time;
>> -    /* How much time to allow to run after the first fault is observed.
>> -     * Then preempt afterwards. (in micro seconds) */
>> -    u32 fault_time;
>> -    u32 policy_flags;
>> -    u32 reserved[8];
>> -} __packed;
>> +#define GLOBAL_POLICY_MAX_NUM_WI 15
>> +
>> +/* Don't reset an engine upon preemption failure */
>> +#define GLOBAL_POLICY_DISABLE_ENGINE_RESET                BIT(0)
>> +
>> +#define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
>>     struct guc_policies {
>> -    struct guc_policy
>> policy[GUC_CLIENT_PRIORITY_NUM][GUC_MAX_ENGINE_CLASSES];
>>       u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
>>       /* In micro seconds. How much time to allow before DPC
>> processing is
>>        * called back via interrupt (to prevent DPC queue drain starving).
>> @@ -286,6 +266,7 @@ struct guc_policies {
>>        * idle. */
>>       u32 max_num_work_items;
>>   +    u32 global_flags;
>>       u32 reserved[4];
>>   } __packed;
>>   @@ -311,29 +292,13 @@ struct guc_gt_system_info {
>>       u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
>>   } __packed;
>>   -/* Clients info */
>> -struct guc_ct_pool_entry {
>> -    struct guc_ct_buffer_desc desc;
>> -    u32 reserved[7];
>> -} __packed;
>> -
>> -#define GUC_CT_POOL_SIZE    2
>> -
>> -struct guc_clients_info {
>> -    u32 clients_num;
>> -    u32 reserved0[13];
>> -    u32 ct_pool_addr;
>> -    u32 ct_pool_count;
>> -    u32 reserved[4];
>> -} __packed;
>> -
>>   /* GuC Additional Data Struct */
>>   struct guc_ads {
>>       struct guc_mmio_reg_set
>> reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
>>       u32 reserved0;
>>       u32 scheduler_policies;
>>       u32 gt_system_info;
>> -    u32 clients_info;
>> +    u32 reserved1;
>>       u32 control_data;
>>       u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
>>       u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
>> @@ -344,8 +309,7 @@ struct guc_ads {
>>   /* GuC logging structures */
>>     enum guc_log_buffer_type {
>> -    GUC_ISR_LOG_BUFFER,
>> -    GUC_DPC_LOG_BUFFER,
>> +    GUC_DEBUG_LOG_BUFFER,
>>       GUC_CRASH_DUMP_LOG_BUFFER,
>>       GUC_MAX_LOG_BUFFER
>>   };
>> @@ -414,23 +378,6 @@ struct guc_shared_ctx_data {
>>       struct guc_ctx_report preempt_ctx_report[GUC_MAX_ENGINES_NUM];
>>   } __packed;
>>   -#define __INTEL_GUC_MSG_GET(T, m) \
>> -    (((m) & INTEL_GUC_MSG_ ## T ## _MASK) >> INTEL_GUC_MSG_ ## T ##
>> _SHIFT)
>> -#define INTEL_GUC_MSG_TO_TYPE(m)    __INTEL_GUC_MSG_GET(TYPE, m)
>> -#define INTEL_GUC_MSG_TO_DATA(m)    __INTEL_GUC_MSG_GET(DATA, m)
>> -#define INTEL_GUC_MSG_TO_CODE(m)    __INTEL_GUC_MSG_GET(CODE, m)
>> -
>> -#define __INTEL_GUC_MSG_TYPE_IS(T, m) \
>> -    (INTEL_GUC_MSG_TO_TYPE(m) == INTEL_GUC_MSG_TYPE_ ## T)
>> -#define INTEL_GUC_MSG_IS_REQUEST(m)   
>> __INTEL_GUC_MSG_TYPE_IS(REQUEST, m)
>> -#define INTEL_GUC_MSG_IS_RESPONSE(m)   
>> __INTEL_GUC_MSG_TYPE_IS(RESPONSE, m)
>> -
>> -#define INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(m) \
>> -     (typecheck(u32, (m)) && \
>> -      ((m) & (INTEL_GUC_MSG_TYPE_MASK | INTEL_GUC_MSG_CODE_MASK)) == \
>> -      ((INTEL_GUC_MSG_TYPE_RESPONSE << INTEL_GUC_MSG_TYPE_SHIFT) | \
>> -       (INTEL_GUC_RESPONSE_STATUS_SUCCESS << INTEL_GUC_MSG_CODE_SHIFT)))
>> -
>>   /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
>>   enum intel_guc_recv_message {
>>       INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> index c36d5eb5bbb9..ac0931f0374b 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> @@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct
>> intel_guc_log *log,
>>   static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type
>> type)
>>   {
>>       switch (type) {
>> -    case GUC_ISR_LOG_BUFFER:
>> -        return ISR_BUFFER_SIZE;
>> -    case GUC_DPC_LOG_BUFFER:
>> -        return DPC_BUFFER_SIZE;
>> +    case GUC_DEBUG_LOG_BUFFER:
>> +        return DEBUG_BUFFER_SIZE;
>>       case GUC_CRASH_DUMP_LOG_BUFFER:
>>           return CRASH_BUFFER_SIZE;
>>       default:
>> @@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct
>> intel_guc_log *log)
>>       src_data += PAGE_SIZE;
>>       dst_data += PAGE_SIZE;
>>   -    for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>> +    for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>>           /*
>>            * Make a copy of the state structure, inside GuC log buffer
>>            * (which is uncached mapped), on the stack to avoid reading
>> @@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
>>        *  +===============================+ 00B
>>        *  |    Crash dump state header    |
>>        *  +-------------------------------+ 32B
>> -     *  |       DPC state header        |
>> +     *  |      Debug state header       |
>>        *  +-------------------------------+ 64B
>> -     *  |       ISR state header        |
>> -     *  +-------------------------------+ 96B
>>        *  |                               |
>>        *  +===============================+ PAGE_SIZE (4KB)
>>        *  |        Crash Dump logs        |
>>        *  +===============================+ + CRASH_SIZE
>> -     *  |           DPC logs            |
>> -     *  +===============================+ + DPC_SIZE
>> -     *  |           ISR logs            |
>> -     *  +===============================+ + ISR_SIZE
>> +     *  |          Debug logs           |
>> +     *  +===============================+ + DEBUG_SIZE
>>        */
>> -    guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
>> -            ISR_BUFFER_SIZE;
>> +    guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
>>         vma = intel_guc_allocate_vma(guc, guc_log_size);
>>       if (IS_ERR(vma)) {
>> @@ -675,10 +668,8 @@ static const char *
>>   stringify_guc_log_type(enum guc_log_buffer_type type)
>>   {
>>       switch (type) {
>> -    case GUC_ISR_LOG_BUFFER:
>> -        return "ISR";
>> -    case GUC_DPC_LOG_BUFFER:
>> -        return "DPC";
>> +    case GUC_DEBUG_LOG_BUFFER:
>> +        return "DEBUG";
>>       case GUC_CRASH_DUMP_LOG_BUFFER:
>>           return "CRASH";
>>       default:
>> @@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log,
>> struct drm_printer *p)
>>         drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
>>   -    for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>> +    for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>>           drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
>>                  stringify_guc_log_type(type),
>>                  log->stats[type].flush,
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> index 11fccd0b2294..ac1ee1d5ce10 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> @@ -17,12 +17,10 @@ struct intel_guc;
>>     #ifdef CONFIG_DRM_I915_DEBUG_GUC
>>   #define CRASH_BUFFER_SIZE    SZ_2M
>> -#define DPC_BUFFER_SIZE        SZ_8M
>> -#define ISR_BUFFER_SIZE        SZ_8M
>> +#define DEBUG_BUFFER_SIZE    SZ_16M
>>   #else
>>   #define CRASH_BUFFER_SIZE    SZ_8K
>> -#define DPC_BUFFER_SIZE        SZ_32K
>> -#define ISR_BUFFER_SIZE        SZ_32K
>> +#define DEBUG_BUFFER_SIZE    SZ_64K
>>   #endif
>>     /*
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> index df647c9a8d56..9f23e9de3237 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> @@ -48,19 +48,19 @@ void intel_uc_fw_change_status(struct intel_uc_fw
>> *uc_fw,
>>    * firmware as TGL.
>>    */
>>   #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \
>> -    fw_def(ALDERLAKE_S, 0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7,
>> 5, 0)) \
>> -    fw_def(ROCKETLAKE,  0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7,
>> 5, 0)) \
>> -    fw_def(TIGERLAKE,   0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7,
>> 5, 0)) \
>> -    fw_def(JASPERLAKE,  0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9,
>> 0, 0)) \
>> -    fw_def(ELKHARTLAKE, 0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9,
>> 0, 0)) \
>> -    fw_def(ICELAKE,     0, guc_def(icl, 49, 0, 1), huc_def(icl,  9,
>> 0, 0)) \
>> -    fw_def(COMETLAKE,   5, guc_def(cml, 49, 0, 1), huc_def(cml,  4,
>> 0, 0)) \
>> -    fw_def(COMETLAKE,   0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4,
>> 0, 0)) \
>> -    fw_def(COFFEELAKE,  0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4,
>> 0, 0)) \
>> -    fw_def(GEMINILAKE,  0, guc_def(glk, 49, 0, 1), huc_def(glk,  4,
>> 0, 0)) \
>> -    fw_def(KABYLAKE,    0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4,
>> 0, 0)) \
>> -    fw_def(BROXTON,     0, guc_def(bxt, 49, 0, 1), huc_def(bxt,  2,
>> 0, 0)) \
>> -    fw_def(SKYLAKE,     0, guc_def(skl, 49, 0, 1), huc_def(skl,  2,
>> 0, 0))
>> +    fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7,
>> 5, 0)) \
>> +    fw_def(ROCKETLAKE,  0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7,
>> 5, 0)) \
>> +    fw_def(TIGERLAKE,   0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7,
>> 5, 0)) \
>> +    fw_def(JASPERLAKE,  0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9,
>> 0, 0)) \
>> +    fw_def(ELKHARTLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9,
>> 0, 0)) \
>> +    fw_def(ICELAKE,     0, guc_def(icl, 62, 0, 0), huc_def(icl,  9,
>> 0, 0)) \
>> +    fw_def(COMETLAKE,   5, guc_def(cml, 62, 0, 0), huc_def(cml,  4,
>> 0, 0)) \
>> +    fw_def(COMETLAKE,   0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4,
>> 0, 0)) \
>> +    fw_def(COFFEELAKE,  0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4,
>> 0, 0)) \
>> +    fw_def(GEMINILAKE,  0, guc_def(glk, 62, 0, 0), huc_def(glk,  4,
>> 0, 0)) \
>> +    fw_def(KABYLAKE,    0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4,
>> 0, 0)) \
>> +    fw_def(BROXTON,     0, guc_def(bxt, 62, 0, 0), huc_def(bxt,  2,
>> 0, 0)) \
>> +    fw_def(SKYLAKE,     0, guc_def(skl, 62, 0, 0), huc_def(skl,  2,
>> 0, 0))
>>     #define __MAKE_UC_FW_PATH(prefix_, name_, major_, minor_, patch_) \
>>       "i915/" \
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [Intel-gfx] [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0
@ 2021-06-17  6:24       ` Michal Wajdeczko
  0 siblings, 0 replies; 19+ messages in thread
From: Michal Wajdeczko @ 2021-06-17  6:24 UTC (permalink / raw)
  To: Daniele Ceraolo Spurio, Matthew Brost, intel-gfx, dri-devel



On 17.06.2021 03:41, Daniele Ceraolo Spurio wrote:
> 
> 
> On 6/15/2021 5:13 PM, Matthew Brost wrote:
>> From: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>
>> Most of the changes to the 62.0.0 firmware revolved around CTB
>> communication channel. Conform to the new (stable) CTB protocol.
>>
>> v2:
>>   (Michal)
>>    Add values back to kernel DOC for actions
>>   (Docs)
>>    Add 'CT buffer' back in to fix warning
>>
>> Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
>> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
>> ---
>>   .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 107 ++++++
>>   .../gt/uc/abi/guc_communication_ctb_abi.h     | 126 +++++--
>>   .../gt/uc/abi/guc_communication_mmio_abi.h    |  65 ++--
>>   drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 107 ++++--
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    |  45 +--
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     | 356 +++++++++---------
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h     |   6 +-
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  75 +---
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.c    |  29 +-
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_log.h    |   6 +-
>>   drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c      |  26 +-
>>   11 files changed, 527 insertions(+), 421 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> index 90efef8a73e4..2d6198e63ebe 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
>> @@ -6,6 +6,113 @@
>>   #ifndef _ABI_GUC_ACTIONS_ABI_H
>>   #define _ABI_GUC_ACTIONS_ABI_H
>>   +/**
>> + * DOC: HOST2GUC_REGISTER_CTB
>> + *
>> + * This message is used as part of the `CTB based communication`_ setup.
>> + *
>> + * This message must be sent as `MMIO HXG Message`_.
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_HOST_                                |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_REQUEST_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 27:16 | DATA0 =
>> MBZ                                                  |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_REGISTER_CTB` =
>> 0x4505        |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 | 31:12 | RESERVED =
>> MBZ                                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 | **TYPE** - type for the `CT
>> Buffer`_                         |
>> + *  |   |      
>> |                                                              |
>> + *  |   |       |   - _`GUC_CTB_TYPE_HOST2GUC` =
>> 0                             |
>> + *  |   |       |   - _`GUC_CTB_TYPE_GUC2HOST` =
>> 1                             |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | **SIZE** - size of the `CT Buffer`_ in 4K units
>> minus 1      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 2 |  31:0 | **DESC_ADDR** - GGTT address of the `CTB
>> Descriptor`_        |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 3 |  31:0 | **BUFF_ADDF** - GGTT address of the `CT
>> Buffer`_             |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_GUC_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  27:0 | DATA0 =
>> MBZ                                                  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +#define GUC_ACTION_HOST2GUC_REGISTER_CTB        0x4505
>> +
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN       
>> (GUC_HXG_REQUEST_MSG_MIN_LEN + 3u)
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_0_MBZ       
>> GUC_HXG_REQUEST_MSG_0_DATA0
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_MBZ        (0xfffff << 12)
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE    (0xf << 8)
>> +#define   GUC_CTB_TYPE_HOST2GUC                0u
>> +#define   GUC_CTB_TYPE_GUC2HOST                1u
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE    (0xff << 0)
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR   
>> GUC_HXG_REQUEST_MSG_n_DATAn
>> +#define HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR   
>> GUC_HXG_REQUEST_MSG_n_DATAn
>> +
>> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_LEN       
>> GUC_HXG_RESPONSE_MSG_MIN_LEN
>> +#define HOST2GUC_REGISTER_CTB_RESPONSE_MSG_0_MBZ   
>> GUC_HXG_RESPONSE_MSG_0_DATA0
>> +
>> +/**
>> + * DOC: HOST2GUC_DEREGISTER_CTB
>> + *
>> + * This message is used as part of the `CTB based communication`_
>> teardown.
>> + *
>> + * This message must be sent as `MMIO HXG Message`_.
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_HOST_                                |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_REQUEST_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 27:16 | DATA0 =
>> MBZ                                                  |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  15:0 | ACTION = _`GUC_ACTION_HOST2GUC_DEREGISTER_CTB` =
>> 0x4506      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 | 31:12 | RESERVED =
>> MBZ                                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 | **TYPE** - type of the `CT
>> Buffer`_                          |
>> + *  |   |      
>> |                                                              |
>> + *  |   |       | see
>> `GUC_ACTION_HOST2GUC_REGISTER_CTB`_                      |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | RESERVED =
>> MBZ                                               |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |    31 | ORIGIN =
>> GUC_HXG_ORIGIN_GUC_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 30:28 | TYPE =
>> GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  27:0 | DATA0 =
>> MBZ                                                  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +#define GUC_ACTION_HOST2GUC_DEREGISTER_CTB        0x4506
>> +
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN       
>> (GUC_HXG_REQUEST_MSG_MIN_LEN + 1u)
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_0_MBZ   
>> GUC_HXG_REQUEST_MSG_0_DATA0
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ    (0xfffff << 12)
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE    (0xf << 8)
>> +#define HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_MBZ2    (0xff << 0)
>> +
>> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_LEN   
>> GUC_HXG_RESPONSE_MSG_MIN_LEN
>> +#define HOST2GUC_DEREGISTER_CTB_RESPONSE_MSG_0_MBZ   
>> GUC_HXG_RESPONSE_MSG_0_DATA0
>> +
>> +/* legacy definitions */
>> +
>>   enum intel_guc_action {
>>       INTEL_GUC_ACTION_DEFAULT = 0x0,
>>       INTEL_GUC_ACTION_REQUEST_PREEMPTION = 0x2,
>> diff --git
>> a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> index d38935f47ecf..29fc93a8b5be 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h
>> @@ -7,6 +7,110 @@
>>   #define _ABI_GUC_COMMUNICATION_CTB_ABI_H
>>     #include <linux/types.h>
>> +#include <linux/build_bug.h>
>> +
>> +#include "guc_messages_abi.h"
>> +
>> +/**
>> + * DOC: CT Buffer
>> + *
>> + * Circular buffer used to send / receive CTBs (H2G or G2H)
> 
> nit: the CTB is not used to send CTBs, but to send messages. Can fix
> while pushing.

and to be more precisely, not H2G or G2H messages, but
	" to send generic `CTB Message`_ "
as H2G or G2H (again more precisely `CTB HXG Message`_) is just a
specific type of message

> 
> For the rest I couldn't spot anything that didn't match what was already
> reviewed, so:
> 
> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> 
> Daniele
> 
>> + */
>> +
>> +/**
>> + * DOC: CTB Descriptor
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |  31:0 | **HEAD** - offset (in dwords) to the last dword
>> that was     |
>> + *  |   |       | read from the `CT
>> Buffer`_.                                  |
>> + *  |   |       | It can only be updated by the
>> receiver.                      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 |  31:0 | **TAIL** - offset (in dwords) to the last dword
>> that was     |
>> + *  |   |       | written to the `CT
>> Buffer`_.                                 |
>> + *  |   |       | It can only be updated by the
>> sender.                        |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 2 |  31:0 | **STATUS** - status of the
>> CTB                               |
>> + *  |   |      
>> |                                                              |
>> + *  |   |       |   - _`GUC_CTB_STATUS_NO_ERROR` = 0 (normal
>> operation)        |
>> + *  |   |       |   - _`GUC_CTB_STATUS_OVERFLOW` = 1 (head/tail too
>> large)     |
>> + *  |   |       |   - _`GUC_CTB_STATUS_UNDERFLOW` = 2 (truncated
>> message)      |
>> + *  |   |       |   - _`GUC_CTB_STATUS_MISMATCH` = 4 (head/tail
>> modified)      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |...|       | RESERVED =
>> MBZ                                               |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 15|  31:0 | RESERVED =
>> MBZ                                               |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +
>> +struct guc_ct_buffer_desc {
>> +    u32 head;
>> +    u32 tail;
>> +    u32 status;
>> +#define GUC_CTB_STATUS_NO_ERROR                0
>> +#define GUC_CTB_STATUS_OVERFLOW                (1 << 0)
>> +#define GUC_CTB_STATUS_UNDERFLOW            (1 << 1)
>> +#define GUC_CTB_STATUS_MISMATCH                (1 << 2)
>> +    u32 reserved[13];
>> +} __packed;
>> +static_assert(sizeof(struct guc_ct_buffer_desc) == 64);
>> +
>> +/**
>> + * DOC: CTB Message
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 | 31:16 | **FENCE** - message
>> identifier                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 15:12 | **FORMAT** - format of the CTB
>> message                       |
>> + *  |   |       |  - _`GUC_CTB_FORMAT_HXG` = 0 - see `CTB HXG
>> Message`_        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 |
>> **RESERVED**                                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | **NUM_DWORDS** - length of the CTB message (w/o
>> header)      |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 |  31:0 | optional (depends on
>> FORMAT)                                 |
>> + * 
>> +---+-------+                                                             
>> |
>> + *  |...|      
>> |                                                              |
>> + * 
>> +---+-------+                                                             
>> |
>> + *  | n |  31:0
>> |                                                              |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +
>> +#define GUC_CTB_MSG_MIN_LEN            1u
>> +#define GUC_CTB_MSG_MAX_LEN            256u
>> +#define GUC_CTB_MSG_0_FENCE            (0xffff << 16)
>> +#define GUC_CTB_MSG_0_FORMAT            (0xf << 12)
>> +#define   GUC_CTB_FORMAT_HXG            0u
>> +#define GUC_CTB_MSG_0_RESERVED            (0xf << 8)
>> +#define GUC_CTB_MSG_0_NUM_DWORDS        (0xff << 0)
>> +
>> +/**
>> + * DOC: CTB HXG Message
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 | 31:16 |
>> FENCE                                                        |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   | 15:12 | FORMAT =
>> GUC_CTB_FORMAT_HXG_                                 |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |  11:8 | RESERVED =
>> MBZ                                               |
>> + *  |  
>> +-------+--------------------------------------------------------------+
>> + *  |   |   7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG
>> message  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  | 1 |  31:0 | 
>> +--------------------------------------------------------+  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  |...|       |  |  Embedded `HXG
>> Message`_                               |  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  | n |  31:0 | 
>> +--------------------------------------------------------+  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>> +
>> +#define GUC_CTB_HXG_MSG_MIN_LEN        (GUC_CTB_MSG_MIN_LEN +
>> GUC_HXG_MSG_MIN_LEN)
>> +#define GUC_CTB_HXG_MSG_MAX_LEN        GUC_CTB_MSG_MAX_LEN
>>     /**
>>    * DOC: CTB based communication
>> @@ -60,28 +164,6 @@
>>    * - **flags**, holds various bits to control message handling
>>    */
>>   -/*
>> - * Describes single command transport buffer.
>> - * Used by both guc-master and clients.
>> - */
>> -struct guc_ct_buffer_desc {
>> -    u32 addr;        /* gfx address */
>> -    u64 host_private;    /* host private data */
>> -    u32 size;        /* size in bytes */
>> -    u32 head;        /* offset updated by GuC*/
>> -    u32 tail;        /* offset updated by owner */
>> -    u32 is_in_error;    /* error indicator */
>> -    u32 reserved1;
>> -    u32 reserved2;
>> -    u32 owner;        /* id of the channel owner */
>> -    u32 owner_sub_id;    /* owner-defined field for extra tracking */
>> -    u32 reserved[5];
>> -} __packed;
>> -
>> -/* Type of command transport buffer */
>> -#define INTEL_GUC_CT_BUFFER_TYPE_SEND    0x0u
>> -#define INTEL_GUC_CT_BUFFER_TYPE_RECV    0x1u
>> -
>>   /*
>>    * Definition of the command transport message header (DW0)
>>    *
>> diff --git
>> a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> index be066a62e9e0..bbf1ddb77434 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h
>> @@ -7,46 +7,43 @@
>>   #define _ABI_GUC_COMMUNICATION_MMIO_ABI_H
>>     /**
>> - * DOC: MMIO based communication
>> + * DOC: GuC MMIO based communication
>>    *
>> - * The MMIO based communication between Host and GuC uses software
>> scratch
>> - * registers, where first register holds data treated as message header,
>> - * and other registers are used to hold message payload.
>> + * The MMIO based communication between Host and GuC relies on special
>> + * hardware registers which format could be defined by the software
>> + * (so called scratch registers).
>>    *
>> - * For Gen9+, GuC uses software scratch registers 0xC180-0xC1B8,
>> - * but no H2G command takes more than 8 parameters and the GuC FW
>> - * itself uses an 8-element array to store the H2G message.
>> + * Each MMIO based message, both Host to GuC (H2G) and GuC to Host (G2H)
>> + * messages, which maximum length depends on number of available scratch
>> + * registers, is directly written into those scratch registers.
>>    *
>> - *      +-----------+---------+---------+---------+
>> - *      |  MMIO[0]  | MMIO[1] |   ...   | MMIO[n] |
>> - *      +-----------+---------+---------+---------+
>> - *      | header    |      optional payload       |
>> - *      +======+====+=========+=========+=========+
>> - *      | 31:28|type|         |         |         |
>> - *      +------+----+         |         |         |
>> - *      | 27:16|data|         |         |         |
>> - *      +------+----+         |         |         |
>> - *      |  15:0|code|         |         |         |
>> - *      +------+----+---------+---------+---------+
>> + * For Gen9+, there are 16 software scratch registers 0xC180-0xC1B8,
>> + * but no H2G command takes more than 4 parameters and the GuC firmware
>> + * itself uses an 4-element array to store the H2G message.
>>    *
>> - * The message header consists of:
>> + * For Gen11+, there are additional 4 registers 0x190240-0x19024C, which
>> + * are, regardless on lower count, preferred over legacy ones.
>>    *
>> - * - **type**, indicates message type
>> - * - **code**, indicates message code, is specific for **type**
>> - * - **data**, indicates message data, optional, depends on **code**
>> - *
>> - * The following message **types** are supported:
>> - *
>> - * - **REQUEST**, indicates Host-to-GuC request, requested GuC action
>> code
>> - *   must be priovided in **code** field. Optional action specific
>> parameters
>> - *   can be provided in remaining payload registers or **data** field.
>> - *
>> - * - **RESPONSE**, indicates GuC-to-Host response from earlier GuC
>> request,
>> - *   action response status will be provided in **code** field. Optional
>> - *   response data can be returned in remaining payload registers or
>> **data**
>> - *   field.
>> + * The MMIO based communication is mainly used during driver
>> initialization
>> + * phase to setup the `CTB based communication`_ that will be used
>> afterwards.
>>    */
>>   -#define GUC_MAX_MMIO_MSG_LEN        8
>> +#define GUC_MAX_MMIO_MSG_LEN        4
>> +
>> +/**
>> + * DOC: MMIO HXG Message
>> + *
>> + * Format of the MMIO messages follows definitions of `HXG Message`_.
>> + *
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + *  |   | Bits  |
>> Description                                                  |
>> + * 
>> +===+=======+==============================================================+
>>
>> + *  | 0 |  31:0 | 
>> +--------------------------------------------------------+  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  |...|       |  |  Embedded `HXG
>> Message`_                               |  |
>> + *  +---+-------+ 
>> |                                                        |  |
>> + *  | n |  31:0 | 
>> +--------------------------------------------------------+  |
>> + * 
>> +---+-------+--------------------------------------------------------------+
>>
>> + */
>>     #endif /* _ABI_GUC_COMMUNICATION_MMIO_ABI_H */
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> index f147cb389a20..6661dcb02239 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> @@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct
>> intel_guc *guc)
>>         BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
>>       BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
>> -    BUILD_BUG_ON(!DPC_BUFFER_SIZE);
>> -    BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
>> -    BUILD_BUG_ON(!ISR_BUFFER_SIZE);
>> -    BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
>> +    BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
>> +    BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
>>         BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
>>               (GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
>> -    BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
>> -            (GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
>> -    BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
>> -            (GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
>> +    BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
>> +            (GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
>>         flags = GUC_LOG_VALID |
>>           GUC_LOG_NOTIFY_ON_HALF_FULL |
>>           FLAG |
>>           ((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
>> -        ((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
>> -        ((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
>> +        ((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
>>           (offset << GUC_LOG_BUF_ADDR_SHIFT);
>>         #undef UNIT
>> @@ -376,29 +371,27 @@ void intel_guc_fini(struct intel_guc *guc)
>>   /*
>>    * This function implements the MMIO based host to GuC interface.
>>    */
>> -int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32
>> len,
>> +int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request,
>> u32 len,
>>               u32 *response_buf, u32 response_buf_size)
>>   {
>> +    struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
>>       struct intel_uncore *uncore = guc_to_gt(guc)->uncore;
>> -    u32 status;
>> +    u32 header;
>>       int i;
>>       int ret;
>>         GEM_BUG_ON(!len);
>>       GEM_BUG_ON(len > guc->send_regs.count);
>>   -    /* We expect only action code */
>> -    GEM_BUG_ON(*action & ~INTEL_GUC_MSG_CODE_MASK);
>> -
>> -    /* If CT is available, we expect to use MMIO only during
>> init/fini */
>> -    GEM_BUG_ON(*action !=
>> INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
>> -           *action !=
>> INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, request[0]) !=
>> GUC_HXG_ORIGIN_HOST);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, request[0]) !=
>> GUC_HXG_TYPE_REQUEST);
>>         mutex_lock(&guc->send_mutex);
>>       intel_uncore_forcewake_get(uncore, guc->send_regs.fw_domains);
>>   +retry:
>>       for (i = 0; i < len; i++)
>> -        intel_uncore_write(uncore, guc_send_reg(guc, i), action[i]);
>> +        intel_uncore_write(uncore, guc_send_reg(guc, i), request[i]);
>>         intel_uncore_posting_read(uncore, guc_send_reg(guc, i - 1));
>>   @@ -410,30 +403,74 @@ int intel_guc_send_mmio(struct intel_guc *guc,
>> const u32 *action, u32 len,
>>        */
>>       ret = __intel_wait_for_register_fw(uncore,
>>                          guc_send_reg(guc, 0),
>> -                       INTEL_GUC_MSG_TYPE_MASK,
>> -                       INTEL_GUC_MSG_TYPE_RESPONSE <<
>> -                       INTEL_GUC_MSG_TYPE_SHIFT,
>> -                       10, 10, &status);
>> -    /* If GuC explicitly returned an error, convert it to -EIO */
>> -    if (!ret && !INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(status))
>> -        ret = -EIO;
>> +                       GUC_HXG_MSG_0_ORIGIN,
>> +                       FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
>> +                              GUC_HXG_ORIGIN_GUC),
>> +                       10, 10, &header);
>> +    if (unlikely(ret)) {
>> +timeout:
>> +        drm_err(&i915->drm, "mmio request %#x: no reply %x\n",
>> +            request[0], header);
>> +        goto out;
>> +    }
>>   -    if (ret) {
>> -        DRM_ERROR("MMIO: GuC action %#x failed with error %d %#x\n",
>> -              action[0], ret, status);
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) ==
>> GUC_HXG_TYPE_NO_RESPONSE_BUSY) {
>> +#define done ({ header = intel_uncore_read(uncore, guc_send_reg(guc,
>> 0)); \
>> +        FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) != GUC_HXG_ORIGIN_GUC
>> || \
>> +        FIELD_GET(GUC_HXG_MSG_0_TYPE, header) !=
>> GUC_HXG_TYPE_NO_RESPONSE_BUSY; })
>> +
>> +        ret = wait_for(done, 1000);
>> +        if (unlikely(ret))
>> +            goto timeout;
>> +        if (unlikely(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, header) !=
>> +                       GUC_HXG_ORIGIN_GUC))
>> +            goto proto;
>> +#undef done
>> +    }
>> +
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) ==
>> GUC_HXG_TYPE_NO_RESPONSE_RETRY) {
>> +        u32 reason = FIELD_GET(GUC_HXG_RETRY_MSG_0_REASON, header);
>> +
>> +        drm_dbg(&i915->drm, "mmio request %#x: retrying, reason %u\n",
>> +            request[0], reason);
>> +        goto retry;
>> +    }
>> +
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) ==
>> GUC_HXG_TYPE_RESPONSE_FAILURE) {
>> +        u32 hint = FIELD_GET(GUC_HXG_FAILURE_MSG_0_HINT, header);
>> +        u32 error = FIELD_GET(GUC_HXG_FAILURE_MSG_0_ERROR, header);
>> +
>> +        drm_err(&i915->drm, "mmio request %#x: failure %x/%u\n",
>> +            request[0], error, hint);
>> +        ret = -ENXIO;
>> +        goto out;
>> +    }
>> +
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, header) !=
>> GUC_HXG_TYPE_RESPONSE_SUCCESS) {
>> +proto:
>> +        drm_err(&i915->drm, "mmio request %#x: unexpected reply %#x\n",
>> +            request[0], header);
>> +        ret = -EPROTO;
>>           goto out;
>>       }
>>         if (response_buf) {
>> -        int count = min(response_buf_size, guc->send_regs.count - 1);
>> +        int count = min(response_buf_size, guc->send_regs.count);
>>   -        for (i = 0; i < count; i++)
>> +        GEM_BUG_ON(!count);
>> +
>> +        response_buf[0] = header;
>> +
>> +        for (i = 1; i < count; i++)
>>               response_buf[i] = intel_uncore_read(uncore,
>> -                                guc_send_reg(guc, i + 1));
>> -    }
>> +                                guc_send_reg(guc, i));
>>   -    /* Use data from the GuC response as our return value */
>> -    ret = INTEL_GUC_MSG_TO_DATA(status);
>> +        /* Use number of copied dwords as our return value */
>> +        ret = count;
>> +    } else {
>> +        /* Use data from the GuC response as our return value */
>> +        ret = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header);
>> +    }
>>     out:
>>       intel_uncore_forcewake_put(uncore, guc->send_regs.fw_domains);
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> index 9abfbc6edbd6..b82145652d57 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
>> @@ -24,10 +24,6 @@
>>    *      +---------------------------------------+
>>    *      | guc_gt_system_info                    |
>>    *      +---------------------------------------+
>> - *      | guc_clients_info                      |
>> - *      +---------------------------------------+
>> - *      | guc_ct_pool_entry[size]               |
>> - *      +---------------------------------------+
>>    *      | padding                               |
>>    *      +---------------------------------------+ <== 4K aligned
>>    *      | private data                          |
>> @@ -39,8 +35,6 @@ struct __guc_ads_blob {
>>       struct guc_ads ads;
>>       struct guc_policies policies;
>>       struct guc_gt_system_info system_info;
>> -    struct guc_clients_info clients_info;
>> -    struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
>>   } __packed;
>>     static u32 guc_ads_private_data_size(struct intel_guc *guc)
>> @@ -59,38 +53,15 @@ static u32 guc_ads_blob_size(struct intel_guc *guc)
>>              guc_ads_private_data_size(guc);
>>   }
>>   -static void guc_policy_init(struct guc_policy *policy)
>> -{
>> -    policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
>> -    policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
>> -    policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
>> -    policy->policy_flags = 0;
>> -}
>> -
>>   static void guc_policies_init(struct guc_policies *policies)
>>   {
>> -    struct guc_policy *policy;
>> -    u32 p, i;
>> -
>> -    policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
>> -    policies->max_num_work_items = POLICY_MAX_NUM_WI;
>> -
>> -    for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
>> -        for (i = 0; i < GUC_MAX_ENGINE_CLASSES; i++) {
>> -            policy = &policies->policy[p][i];
>> -
>> -            guc_policy_init(policy);
>> -        }
>> -    }
>> -
>> +    policies->dpc_promote_time =
>> GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
>> +    policies->max_num_work_items = GLOBAL_POLICY_MAX_NUM_WI;
>> +    /* Disable automatic resets as not yet supported. */
>> +    policies->global_flags = GLOBAL_POLICY_DISABLE_ENGINE_RESET;
>>       policies->is_valid = 1;
>>   }
>>   -static void guc_ct_pool_entries_init(struct guc_ct_pool_entry
>> *pool, u32 num)
>> -{
>> -    memset(pool, 0, num * sizeof(*pool));
>> -}
>> -
>>   static void guc_mapping_table_init(struct intel_gt *gt,
>>                      struct guc_gt_system_info *system_info)
>>   {
>> @@ -178,17 +149,9 @@ static void __guc_ads_init(struct intel_guc *guc)
>>         base = intel_guc_ggtt_offset(guc, guc->ads_vma);
>>   -    /* Clients info  */
>> -    guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
>> -
>> -    blob->clients_info.clients_num = 1;
>> -    blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
>> -    blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
>> -
>>       /* ADS */
>>       blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
>>       blob->ads.gt_system_info = base + ptr_offset(blob, system_info);
>> -    blob->ads.clients_info = base + ptr_offset(blob, clients_info);
>>         /* Private Data */
>>       blob->ads.private_data = base + guc_ads_private_data_offset(guc);
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> index 8f7b148fef58..43409044528e 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
>> @@ -103,61 +103,66 @@ void intel_guc_ct_init_early(struct intel_guc_ct
>> *ct)
>>   static inline const char *guc_ct_buffer_type_to_str(u32 type)
>>   {
>>       switch (type) {
>> -    case INTEL_GUC_CT_BUFFER_TYPE_SEND:
>> +    case GUC_CTB_TYPE_HOST2GUC:
>>           return "SEND";
>> -    case INTEL_GUC_CT_BUFFER_TYPE_RECV:
>> +    case GUC_CTB_TYPE_GUC2HOST:
>>           return "RECV";
>>       default:
>>           return "<invalid>";
>>       }
>>   }
>>   -static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc,
>> -                    u32 cmds_addr, u32 size)
>> +static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc)
>>   {
>>       memset(desc, 0, sizeof(*desc));
>> -    desc->addr = cmds_addr;
>> -    desc->size = size;
>> -    desc->owner = CTB_OWNER_HOST;
>>   }
>>   -static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb,
>> u32 cmds_addr)
>> +static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb)
>>   {
>> -    guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size);
>> +    ctb->broken = false;
>> +    guc_ct_buffer_desc_init(ctb->desc);
>>   }
>>     static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb,
>>                      struct guc_ct_buffer_desc *desc,
>> -                   u32 *cmds, u32 size)
>> +                   u32 *cmds, u32 size_in_bytes)
>>   {
>> -    GEM_BUG_ON(size % 4);
>> +    GEM_BUG_ON(size_in_bytes % 4);
>>         ctb->desc = desc;
>>       ctb->cmds = cmds;
>> -    ctb->size = size;
>> +    ctb->size = size_in_bytes / 4;
>>   -    guc_ct_buffer_reset(ctb, 0);
>> +    guc_ct_buffer_reset(ctb);
>>   }
>>   -static int guc_action_register_ct_buffer(struct intel_guc *guc,
>> -                     u32 desc_addr,
>> -                     u32 type)
>> +static int guc_action_register_ct_buffer(struct intel_guc *guc, u32
>> type,
>> +                     u32 desc_addr, u32 buff_addr, u32 size)
>>   {
>> -    u32 action[] = {
>> -        INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER,
>> -        desc_addr,
>> -        sizeof(struct guc_ct_buffer_desc),
>> -        type
>> +    u32 request[HOST2GUC_REGISTER_CTB_REQUEST_MSG_LEN] = {
>> +        FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
>> +        FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
>> +        FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION,
>> GUC_ACTION_HOST2GUC_REGISTER_CTB),
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_SIZE, size /
>> SZ_4K - 1) |
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_1_TYPE, type),
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR,
>> desc_addr),
>> +        FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR,
>> buff_addr),
>>       };
>>   -    /* Can't use generic send(), CT registration must go over MMIO */
>> -    return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL,
>> 0);
>> +    GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type !=
>> GUC_CTB_TYPE_GUC2HOST);
>> +    GEM_BUG_ON(size % SZ_4K);
>> +
>> +    /* CT registration must go over MMIO */
>> +    return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request),
>> NULL, 0);
>>   }
>>   -static int ct_register_buffer(struct intel_guc_ct *ct, u32
>> desc_addr, u32 type)
>> +static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
>> +                  u32 desc_addr, u32 buff_addr, u32 size)
>>   {
>> -    int err = guc_action_register_ct_buffer(ct_to_guc(ct), desc_addr,
>> type);
>> +    int err;
>>   +    err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
>> +                        desc_addr, buff_addr, size);
>>       if (unlikely(err))
>>           CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n",
>>                guc_ct_buffer_type_to_str(type), err);
>> @@ -166,14 +171,17 @@ static int ct_register_buffer(struct
>> intel_guc_ct *ct, u32 desc_addr, u32 type)
>>     static int guc_action_deregister_ct_buffer(struct intel_guc *guc,
>> u32 type)
>>   {
>> -    u32 action[] = {
>> -        INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER,
>> -        CTB_OWNER_HOST,
>> -        type
>> +    u32 request[HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_LEN] = {
>> +        FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
>> +        FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
>> +        FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION,
>> GUC_ACTION_HOST2GUC_DEREGISTER_CTB),
>> +        FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type),
>>       };
>>   -    /* Can't use generic send(), CT deregistration must go over
>> MMIO */
>> -    return intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL,
>> 0);
>> +    GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type !=
>> GUC_CTB_TYPE_GUC2HOST);
>> +
>> +    /* CT deregistration must go over MMIO */
>> +    return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request),
>> NULL, 0);
>>   }
>>     static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type)
>> @@ -261,7 +269,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct)
>>   int intel_guc_ct_enable(struct intel_guc_ct *ct)
>>   {
>>       struct intel_guc *guc = ct_to_guc(ct);
>> -    u32 base, cmds;
>> +    u32 base, desc, cmds;
>>       void *blob;
>>       int err;
>>   @@ -277,23 +285,26 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>>       GEM_BUG_ON(blob != ct->ctbs.send.desc);
>>         /* (re)initialize descriptors */
>> -    cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
>> -    guc_ct_buffer_reset(&ct->ctbs.send, cmds);
>> -
>> -    cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
>> -    guc_ct_buffer_reset(&ct->ctbs.recv, cmds);
>> +    guc_ct_buffer_reset(&ct->ctbs.send);
>> +    guc_ct_buffer_reset(&ct->ctbs.recv);
>>         /*
>>        * Register both CT buffers starting with RECV buffer.
>>        * Descriptors are in first half of the blob.
>>        */
>> -    err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.recv.desc,
>> blob),
>> -                 INTEL_GUC_CT_BUFFER_TYPE_RECV);
>> +    desc = base + ptrdiff(ct->ctbs.recv.desc, blob);
>> +    cmds = base + ptrdiff(ct->ctbs.recv.cmds, blob);
>> +    err = ct_register_buffer(ct, GUC_CTB_TYPE_GUC2HOST,
>> +                 desc, cmds, ct->ctbs.recv.size * 4);
>> +
>>       if (unlikely(err))
>>           goto err_out;
>>   -    err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs.send.desc,
>> blob),
>> -                 INTEL_GUC_CT_BUFFER_TYPE_SEND);
>> +    desc = base + ptrdiff(ct->ctbs.send.desc, blob);
>> +    cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);
>> +    err = ct_register_buffer(ct, GUC_CTB_TYPE_HOST2GUC,
>> +                 desc, cmds, ct->ctbs.send.size * 4);
>> +
>>       if (unlikely(err))
>>           goto err_deregister;
>>   @@ -302,7 +313,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
>>       return 0;
>>     err_deregister:
>> -    ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
>> +    ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>>   err_out:
>>       CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err));
>>       return err;
>> @@ -321,8 +332,8 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
>>       ct->enabled = false;
>>         if (intel_guc_is_fw_running(guc)) {
>> -        ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_SEND);
>> -        ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV);
>> +        ct_deregister_buffer(ct, GUC_CTB_TYPE_HOST2GUC);
>> +        ct_deregister_buffer(ct, GUC_CTB_TYPE_GUC2HOST);
>>       }
>>   }
>>   @@ -354,24 +365,6 @@ static void write_barrier(struct intel_guc_ct *ct)
>>       }
>>   }
>>   -/**
>> - * DOC: CTB Host to GuC request
>> - *
>> - * Format of the CTB Host to GuC request message is as follows::
>> - *
>> - *      +------------+---------+---------+---------+---------+
>> - *      |   msg[0]   |   [1]   |   [2]   |   ...   |  [n-1]  |
>> - *      +------------+---------+---------+---------+---------+
>> - *      |   MESSAGE  |       MESSAGE PAYLOAD                 |
>> - *      +   HEADER   +---------+---------+---------+---------+
>> - *      |            |    0    |    1    |   ...   |    n    |
>> - *      +============+=========+=========+=========+=========+
>> - *      |  len >= 1  |  FENCE  |     request specific data   |
>> - *      +------+-----+---------+---------+---------+---------+
>> - *
>> - *                   ^-----------------len-------------------^
>> - */
>> -
>>   static int ct_write(struct intel_guc_ct *ct,
>>               const u32 *action,
>>               u32 len /* in dwords */,
>> @@ -384,20 +377,22 @@ static int ct_write(struct intel_guc_ct *ct,
>>       u32 size = ctb->size;
>>       u32 used;
>>       u32 header;
>> +    u32 hxg;
>>       u32 *cmds = ctb->cmds;
>>       unsigned int i;
>>   -    if (unlikely(desc->is_in_error))
>> +    if (unlikely(ctb->broken))
>>           return -EPIPE;
>>   -    if (unlikely(!IS_ALIGNED(head | tail, 4) ||
>> -             (tail | head) >= size))
>> +    if (unlikely(desc->status))
>>           goto corrupted;
>>   -    /* later calculations will be done in dwords */
>> -    head /= 4;
>> -    tail /= 4;
>> -    size /= 4;
>> +    if (unlikely((tail | head) >= size)) {
>> +        CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
>> +             head, tail, size);
>> +        desc->status |= GUC_CTB_STATUS_OVERFLOW;
>> +        goto corrupted;
>> +    }
>>         /*
>>        * tail == head condition indicates empty. GuC FW does not support
>> @@ -413,22 +408,25 @@ static int ct_write(struct intel_guc_ct *ct,
>>           return -ENOSPC;
>>         /*
>> -     * Write the message. The format is the following:
>> -     * DW0: header (including action code)
>> -     * DW1: fence
>> -     * DW2+: action data
>> +     * dw0: CT header (including fence)
>> +     * dw1: HXG header (including action code)
>> +     * dw2+: action data
>>        */
>> -    header = (len << GUC_CT_MSG_LEN_SHIFT) |
>> -         GUC_CT_MSG_SEND_STATUS |
>> -         (action[0] << GUC_CT_MSG_ACTION_SHIFT);
>> +    header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) |
>> +         FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) |
>> +         FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence);
>>   -    CT_DEBUG(ct, "writing %*ph %*ph %*ph\n",
>> -         4, &header, 4, &fence, 4 * (len - 1), &action[1]);
>> +    hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
>> +          FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION |
>> +             GUC_HXG_REQUEST_MSG_0_DATA0, action[0]);
>> +
>> +    CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n",
>> +         tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]);
>>         cmds[tail] = header;
>>       tail = (tail + 1) % size;
>>   -    cmds[tail] = fence;
>> +    cmds[tail] = hxg;
>>       tail = (tail + 1) % size;
>>         for (i = 1; i < len; i++) {
>> @@ -443,14 +441,15 @@ static int ct_write(struct intel_guc_ct *ct,
>>        */
>>       write_barrier(ct);
>>   -    /* now update desc tail (back in bytes) */
>> -    desc->tail = tail * 4;
>> +    /* now update descriptor */
>> +    WRITE_ONCE(desc->tail, tail);
>> +
>>       return 0;
>>     corrupted:
>> -    CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u
>> size=%u\n",
>> -         desc->addr, desc->head, desc->tail, desc->size);
>> -    desc->is_in_error = 1;
>> +    CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
>> +         desc->head, desc->tail, desc->status);
>> +    ctb->broken = true;
>>       return -EPIPE;
>>   }
>>   @@ -477,7 +476,9 @@ static int wait_for_ct_request_update(struct
>> ct_request *req, u32 *status)
>>        * up to that length of time, then switch to a slower sleep-wait
>> loop.
>>        * No GuC command should ever take longer than 10ms.
>>        */
>> -#define done INTEL_GUC_MSG_IS_RESPONSE(READ_ONCE(req->status))
>> +#define done \
>> +    (FIELD_GET(GUC_HXG_MSG_0_ORIGIN, READ_ONCE(req->status)) == \
>> +     GUC_HXG_ORIGIN_GUC)
>>       err = wait_for_us(done, 10);
>>       if (err)
>>           err = wait_for(done, 10);
>> @@ -532,21 +533,21 @@ static int ct_send(struct intel_guc_ct *ct,
>>       if (unlikely(err))
>>           goto unlink;
>>   -    if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) {
>> +    if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) !=
>> GUC_HXG_TYPE_RESPONSE_SUCCESS) {
>>           err = -EIO;
>>           goto unlink;
>>       }
>>         if (response_buf) {
>>           /* There shall be no data in the status */
>> -        WARN_ON(INTEL_GUC_MSG_TO_DATA(request.status));
>> +        WARN_ON(FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0,
>> request.status));
>>           /* Return actual response len */
>>           err = request.response_len;
>>       } else {
>>           /* There shall be no response payload */
>>           WARN_ON(request.response_len);
>>           /* Return data decoded from the status dword */
>> -        err = INTEL_GUC_MSG_TO_DATA(*status);
>> +        err = FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, *status);
>>       }
>>     unlink:
>> @@ -583,21 +584,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct,
>> const u32 *action, u32 len,
>>       return ret;
>>   }
>>   -static inline unsigned int ct_header_get_len(u32 header)
>> -{
>> -    return (header >> GUC_CT_MSG_LEN_SHIFT) & GUC_CT_MSG_LEN_MASK;
>> -}
>> -
>> -static inline unsigned int ct_header_get_action(u32 header)
>> -{
>> -    return (header >> GUC_CT_MSG_ACTION_SHIFT) & GUC_CT_MSG_ACTION_MASK;
>> -}
>> -
>> -static inline bool ct_header_is_response(u32 header)
>> -{
>> -    return !!(header & GUC_CT_MSG_IS_RESPONSE);
>> -}
>> -
>>   static struct ct_incoming_msg *ct_alloc_msg(u32 num_dwords)
>>   {
>>       struct ct_incoming_msg *msg;
>> @@ -630,17 +616,18 @@ static int ct_read(struct intel_guc_ct *ct,
>> struct ct_incoming_msg **msg)
>>       unsigned int i;
>>       u32 header;
>>   -    if (unlikely(desc->is_in_error))
>> +    if (unlikely(ctb->broken))
>>           return -EPIPE;
>>   -    if (unlikely(!IS_ALIGNED(head | tail, 4) ||
>> -             (tail | head) >= size))
>> +    if (unlikely(desc->status))
>>           goto corrupted;
>>   -    /* later calculations will be done in dwords */
>> -    head /= 4;
>> -    tail /= 4;
>> -    size /= 4;
>> +    if (unlikely((tail | head) >= size)) {
>> +        CT_ERROR(ct, "Invalid offsets head=%u tail=%u (size=%u)\n",
>> +             head, tail, size);
>> +        desc->status |= GUC_CTB_STATUS_OVERFLOW;
>> +        goto corrupted;
>> +    }
>>         /* tail == head condition indicates empty */
>>       available = tail - head;
>> @@ -659,7 +646,7 @@ static int ct_read(struct intel_guc_ct *ct, struct
>> ct_incoming_msg **msg)
>>       head = (head + 1) % size;
>>         /* message len with header */
>> -    len = ct_header_get_len(header) + 1;
>> +    len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, header) +
>> GUC_CTB_MSG_MIN_LEN;
>>       if (unlikely(len > (u32)available)) {
>>           CT_ERROR(ct, "Incomplete message %*ph %*ph %*ph\n",
>>                4, &header,
>> @@ -667,6 +654,7 @@ static int ct_read(struct intel_guc_ct *ct, struct
>> ct_incoming_msg **msg)
>>                     size - head : available - 1), &cmds[head],
>>                4 * (head + available - 1 > size ?
>>                     available - 1 - size + head : 0), &cmds[0]);
>> +        desc->status |= GUC_CTB_STATUS_UNDERFLOW;
>>           goto corrupted;
>>       }
>>   @@ -689,65 +677,36 @@ static int ct_read(struct intel_guc_ct *ct,
>> struct ct_incoming_msg **msg)
>>       }
>>       CT_DEBUG(ct, "received %*ph\n", 4 * len, (*msg)->msg);
>>   -    desc->head = head * 4;
>> +    /* now update descriptor */
>> +    WRITE_ONCE(desc->head, head);
>> +
>>       return available - len;
>>     corrupted:
>> -    CT_ERROR(ct, "Corrupted descriptor addr=%#x head=%u tail=%u
>> size=%u\n",
>> -         desc->addr, desc->head, desc->tail, desc->size);
>> -    desc->is_in_error = 1;
>> +    CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n",
>> +         desc->head, desc->tail, desc->status);
>> +    ctb->broken = true;
>>       return -EPIPE;
>>   }
>>   -/**
>> - * DOC: CTB GuC to Host response
>> - *
>> - * Format of the CTB GuC to Host response message is as follows::
>> - *
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
>> - *      +   HEADER   +---------+---------+---------+---------+---------+
>> - *      |            |    0    |    1    |    2    |   ...   |    n    |
>> - *      +============+=========+=========+=========+=========+=========+
>> - *      |  len >= 2  |  FENCE  |  STATUS |   response specific data    |
>> - *      +------+-----+---------+---------+---------+---------+---------+
>> - *
>> - *                   ^-----------------------len-----------------------^
>> - */
>> -
>>   static int ct_handle_response(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *response)
>>   {
>> -    u32 header = response->msg[0];
>> -    u32 len = ct_header_get_len(header);
>> -    u32 fence;
>> -    u32 status;
>> -    u32 datalen;
>> +    u32 len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, response->msg[0]);
>> +    u32 fence = FIELD_GET(GUC_CTB_MSG_0_FENCE, response->msg[0]);
>> +    const u32 *hxg = &response->msg[GUC_CTB_MSG_MIN_LEN];
>> +    const u32 *data = &hxg[GUC_HXG_MSG_MIN_LEN];
>> +    u32 datalen = len - GUC_HXG_MSG_MIN_LEN;
>>       struct ct_request *req;
>>       unsigned long flags;
>>       bool found = false;
>>       int err = 0;
>>   -    GEM_BUG_ON(!ct_header_is_response(header));
>> -
>> -    /* Response payload shall at least include fence and status */
>> -    if (unlikely(len < 2)) {
>> -        CT_ERROR(ct, "Corrupted response (len %u)\n", len);
>> -        return -EPROTO;
>> -    }
>> -
>> -    fence = response->msg[1];
>> -    status = response->msg[2];
>> -    datalen = len - 2;
>> -
>> -    /* Format of the status follows RESPONSE message */
>> -    if (unlikely(!INTEL_GUC_MSG_IS_RESPONSE(status))) {
>> -        CT_ERROR(ct, "Corrupted response (status %#x)\n", status);
>> -        return -EPROTO;
>> -    }
>> +    GEM_BUG_ON(len < GUC_HXG_MSG_MIN_LEN);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]) !=
>> GUC_HXG_ORIGIN_GUC);
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) !=
>> GUC_HXG_TYPE_RESPONSE_SUCCESS &&
>> +           FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) !=
>> GUC_HXG_TYPE_RESPONSE_FAILURE);
>>   -    CT_DEBUG(ct, "response fence %u status %#x\n", fence, status);
>> +    CT_DEBUG(ct, "response fence %u status %#x\n", fence, hxg[0]);
>>         spin_lock_irqsave(&ct->requests.lock, flags);
>>       list_for_each_entry(req, &ct->requests.pending, link) {
>> @@ -763,9 +722,9 @@ static int ct_handle_response(struct intel_guc_ct
>> *ct, struct ct_incoming_msg *r
>>               err = -EMSGSIZE;
>>           }
>>           if (datalen)
>> -            memcpy(req->response_buf, response->msg + 3, 4 * datalen);
>> +            memcpy(req->response_buf, data, 4 * datalen);
>>           req->response_len = datalen;
>> -        WRITE_ONCE(req->status, status);
>> +        WRITE_ONCE(req->status, hxg[0]);
>>           found = true;
>>           break;
>>       }
>> @@ -786,14 +745,16 @@ static int ct_handle_response(struct
>> intel_guc_ct *ct, struct ct_incoming_msg *r
>>   static int ct_process_request(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *request)
>>   {
>>       struct intel_guc *guc = ct_to_guc(ct);
>> -    u32 header, action, len;
>> +    const u32 *hxg;
>>       const u32 *payload;
>> +    u32 hxg_len, action, len;
>>       int ret;
>>   -    header = request->msg[0];
>> -    payload = &request->msg[1];
>> -    action = ct_header_get_action(header);
>> -    len = ct_header_get_len(header);
>> +    hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
>> +    hxg_len = request->size - GUC_CTB_MSG_MIN_LEN;
>> +    payload = &hxg[GUC_HXG_MSG_MIN_LEN];
>> +    action = FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, hxg[0]);
>> +    len = hxg_len - GUC_HXG_MSG_MIN_LEN;
>>         CT_DEBUG(ct, "request %x %*ph\n", action, 4 * len, payload);
>>   @@ -855,29 +816,12 @@ static void
>> ct_incoming_request_worker_func(struct work_struct *w)
>>           queue_work(system_unbound_wq, &ct->requests.worker);
>>   }
>>   -/**
>> - * DOC: CTB GuC to Host request
>> - *
>> - * Format of the CTB GuC to Host request message is as follows::
>> - *
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   msg[0]   |   [1]   |   [2]   |   [3]   |   ...   |  [n-1]  |
>> - *      +------------+---------+---------+---------+---------+---------+
>> - *      |   MESSAGE  |       MESSAGE PAYLOAD                           |
>> - *      +   HEADER   +---------+---------+---------+---------+---------+
>> - *      |            |    0    |    1    |    2    |   ...   |    n    |
>> - *      +============+=========+=========+=========+=========+=========+
>> - *      |     len    |            request specific data                |
>> - *      +------+-----+---------+---------+---------+---------+---------+
>> - *
>> - *                   ^-----------------------len-----------------------^
>> - */
>> -
>> -static int ct_handle_request(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *request)
>> +static int ct_handle_event(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *request)
>>   {
>> +    const u32 *hxg = &request->msg[GUC_CTB_MSG_MIN_LEN];
>>       unsigned long flags;
>>   -    GEM_BUG_ON(ct_header_is_response(request->msg[0]));
>> +    GEM_BUG_ON(FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]) !=
>> GUC_HXG_TYPE_EVENT);
>>         spin_lock_irqsave(&ct->requests.lock, flags);
>>       list_add_tail(&request->link, &ct->requests.incoming);
>> @@ -887,15 +831,53 @@ static int ct_handle_request(struct intel_guc_ct
>> *ct, struct ct_incoming_msg *re
>>       return 0;
>>   }
>>   -static void ct_handle_msg(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *msg)
>> +static int ct_handle_hxg(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *msg)
>>   {
>> -    u32 header = msg->msg[0];
>> +    u32 origin, type;
>> +    u32 *hxg;
>>       int err;
>>   -    if (ct_header_is_response(header))
>> +    if (unlikely(msg->size < GUC_CTB_HXG_MSG_MIN_LEN))
>> +        return -EBADMSG;
>> +
>> +    hxg = &msg->msg[GUC_CTB_MSG_MIN_LEN];
>> +
>> +    origin = FIELD_GET(GUC_HXG_MSG_0_ORIGIN, hxg[0]);
>> +    if (unlikely(origin != GUC_HXG_ORIGIN_GUC)) {
>> +        err = -EPROTO;
>> +        goto failed;
>> +    }
>> +
>> +    type = FIELD_GET(GUC_HXG_MSG_0_TYPE, hxg[0]);
>> +    switch (type) {
>> +    case GUC_HXG_TYPE_EVENT:
>> +        err = ct_handle_event(ct, msg);
>> +        break;
>> +    case GUC_HXG_TYPE_RESPONSE_SUCCESS:
>> +    case GUC_HXG_TYPE_RESPONSE_FAILURE:
>>           err = ct_handle_response(ct, msg);
>> +        break;
>> +    default:
>> +        err = -EOPNOTSUPP;
>> +    }
>> +
>> +    if (unlikely(err)) {
>> +failed:
>> +        CT_ERROR(ct, "Failed to handle HXG message (%pe) %*ph\n",
>> +             ERR_PTR(err), 4 * GUC_HXG_MSG_MIN_LEN, hxg);
>> +    }
>> +    return err;
>> +}
>> +
>> +static void ct_handle_msg(struct intel_guc_ct *ct, struct
>> ct_incoming_msg *msg)
>> +{
>> +    u32 format = FIELD_GET(GUC_CTB_MSG_0_FORMAT, msg->msg[0]);
>> +    int err;
>> +
>> +    if (format == GUC_CTB_FORMAT_HXG)
>> +        err = ct_handle_hxg(ct, msg);
>>       else
>> -        err = ct_handle_request(ct, msg);
>> +        err = -EOPNOTSUPP;
>>         if (unlikely(err)) {
>>           CT_ERROR(ct, "Failed to process CT message (%pe) %*ph\n",
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> index cb222f202301..1ae2dde6db93 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
>> @@ -31,13 +31,15 @@ struct intel_guc;
>>    * @lock: protects access to the commands buffer and buffer descriptor
>>    * @desc: pointer to the buffer descriptor
>>    * @cmds: pointer to the commands buffer
>> - * @size: size of the commands buffer
>> + * @size: size of the commands buffer in dwords
>> + * @broken: flag to indicate if descriptor data is broken
>>    */
>>   struct intel_guc_ct_buffer {
>>       spinlock_t lock;
>>       struct guc_ct_buffer_desc *desc;
>>       u32 *cmds;
>>       u32 size;
>> +    bool broken;
>>   };
>>     @@ -59,7 +61,7 @@ struct intel_guc_ct {
>>       struct tasklet_struct receive_tasklet;
>>         struct {
>> -        u32 last_fence; /* last fence used to send request */
>> +        u16 last_fence; /* last fence used to send request */
>>             spinlock_t lock; /* protects pending requests list */
>>           struct list_head pending; /* requests waiting for response */
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> index e9a9d85e2aa3..617ec601648d 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
>> @@ -81,10 +81,8 @@
>>   #define   GUC_LOG_ALLOC_IN_MEGABYTE    (1 << 3)
>>   #define   GUC_LOG_CRASH_SHIFT        4
>>   #define   GUC_LOG_CRASH_MASK        (0x3 << GUC_LOG_CRASH_SHIFT)
>> -#define   GUC_LOG_DPC_SHIFT        6
>> -#define   GUC_LOG_DPC_MASK            (0x7 << GUC_LOG_DPC_SHIFT)
>> -#define   GUC_LOG_ISR_SHIFT        9
>> -#define   GUC_LOG_ISR_MASK            (0x7 << GUC_LOG_ISR_SHIFT)
>> +#define   GUC_LOG_DEBUG_SHIFT        6
>> +#define   GUC_LOG_DEBUG_MASK            (0xF << GUC_LOG_DEBUG_SHIFT)
>>   #define   GUC_LOG_BUF_ADDR_SHIFT    12
>>     #define GUC_CTL_WA            1
>> @@ -247,32 +245,14 @@ struct guc_stage_desc {
>>     /* Scheduling policy settings */
>>   -/* Reset engine upon preempt failure */
>> -#define POLICY_RESET_ENGINE        (1<<0)
>> -/* Preempt to idle on quantum expiry */
>> -#define POLICY_PREEMPT_TO_IDLE        (1<<1)
>> -
>> -#define POLICY_MAX_NUM_WI 15
>> -#define POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
>> -#define POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
>> -#define POLICY_DEFAULT_PREEMPTION_TIME_US 500000
>> -#define POLICY_DEFAULT_FAULT_TIME_US 250000
>> -
>> -struct guc_policy {
>> -    /* Time for one workload to execute. (in micro seconds) */
>> -    u32 execution_quantum;
>> -    /* Time to wait for a preemption request to completed before
>> issuing a
>> -     * reset. (in micro seconds). */
>> -    u32 preemption_time;
>> -    /* How much time to allow to run after the first fault is observed.
>> -     * Then preempt afterwards. (in micro seconds) */
>> -    u32 fault_time;
>> -    u32 policy_flags;
>> -    u32 reserved[8];
>> -} __packed;
>> +#define GLOBAL_POLICY_MAX_NUM_WI 15
>> +
>> +/* Don't reset an engine upon preemption failure */
>> +#define GLOBAL_POLICY_DISABLE_ENGINE_RESET                BIT(0)
>> +
>> +#define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
>>     struct guc_policies {
>> -    struct guc_policy
>> policy[GUC_CLIENT_PRIORITY_NUM][GUC_MAX_ENGINE_CLASSES];
>>       u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
>>       /* In micro seconds. How much time to allow before DPC
>> processing is
>>        * called back via interrupt (to prevent DPC queue drain starving).
>> @@ -286,6 +266,7 @@ struct guc_policies {
>>        * idle. */
>>       u32 max_num_work_items;
>>   +    u32 global_flags;
>>       u32 reserved[4];
>>   } __packed;
>>   @@ -311,29 +292,13 @@ struct guc_gt_system_info {
>>       u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
>>   } __packed;
>>   -/* Clients info */
>> -struct guc_ct_pool_entry {
>> -    struct guc_ct_buffer_desc desc;
>> -    u32 reserved[7];
>> -} __packed;
>> -
>> -#define GUC_CT_POOL_SIZE    2
>> -
>> -struct guc_clients_info {
>> -    u32 clients_num;
>> -    u32 reserved0[13];
>> -    u32 ct_pool_addr;
>> -    u32 ct_pool_count;
>> -    u32 reserved[4];
>> -} __packed;
>> -
>>   /* GuC Additional Data Struct */
>>   struct guc_ads {
>>       struct guc_mmio_reg_set
>> reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
>>       u32 reserved0;
>>       u32 scheduler_policies;
>>       u32 gt_system_info;
>> -    u32 clients_info;
>> +    u32 reserved1;
>>       u32 control_data;
>>       u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
>>       u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
>> @@ -344,8 +309,7 @@ struct guc_ads {
>>   /* GuC logging structures */
>>     enum guc_log_buffer_type {
>> -    GUC_ISR_LOG_BUFFER,
>> -    GUC_DPC_LOG_BUFFER,
>> +    GUC_DEBUG_LOG_BUFFER,
>>       GUC_CRASH_DUMP_LOG_BUFFER,
>>       GUC_MAX_LOG_BUFFER
>>   };
>> @@ -414,23 +378,6 @@ struct guc_shared_ctx_data {
>>       struct guc_ctx_report preempt_ctx_report[GUC_MAX_ENGINES_NUM];
>>   } __packed;
>>   -#define __INTEL_GUC_MSG_GET(T, m) \
>> -    (((m) & INTEL_GUC_MSG_ ## T ## _MASK) >> INTEL_GUC_MSG_ ## T ##
>> _SHIFT)
>> -#define INTEL_GUC_MSG_TO_TYPE(m)    __INTEL_GUC_MSG_GET(TYPE, m)
>> -#define INTEL_GUC_MSG_TO_DATA(m)    __INTEL_GUC_MSG_GET(DATA, m)
>> -#define INTEL_GUC_MSG_TO_CODE(m)    __INTEL_GUC_MSG_GET(CODE, m)
>> -
>> -#define __INTEL_GUC_MSG_TYPE_IS(T, m) \
>> -    (INTEL_GUC_MSG_TO_TYPE(m) == INTEL_GUC_MSG_TYPE_ ## T)
>> -#define INTEL_GUC_MSG_IS_REQUEST(m)   
>> __INTEL_GUC_MSG_TYPE_IS(REQUEST, m)
>> -#define INTEL_GUC_MSG_IS_RESPONSE(m)   
>> __INTEL_GUC_MSG_TYPE_IS(RESPONSE, m)
>> -
>> -#define INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(m) \
>> -     (typecheck(u32, (m)) && \
>> -      ((m) & (INTEL_GUC_MSG_TYPE_MASK | INTEL_GUC_MSG_CODE_MASK)) == \
>> -      ((INTEL_GUC_MSG_TYPE_RESPONSE << INTEL_GUC_MSG_TYPE_SHIFT) | \
>> -       (INTEL_GUC_RESPONSE_STATUS_SUCCESS << INTEL_GUC_MSG_CODE_SHIFT)))
>> -
>>   /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
>>   enum intel_guc_recv_message {
>>       INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> index c36d5eb5bbb9..ac0931f0374b 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
>> @@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct
>> intel_guc_log *log,
>>   static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type
>> type)
>>   {
>>       switch (type) {
>> -    case GUC_ISR_LOG_BUFFER:
>> -        return ISR_BUFFER_SIZE;
>> -    case GUC_DPC_LOG_BUFFER:
>> -        return DPC_BUFFER_SIZE;
>> +    case GUC_DEBUG_LOG_BUFFER:
>> +        return DEBUG_BUFFER_SIZE;
>>       case GUC_CRASH_DUMP_LOG_BUFFER:
>>           return CRASH_BUFFER_SIZE;
>>       default:
>> @@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct
>> intel_guc_log *log)
>>       src_data += PAGE_SIZE;
>>       dst_data += PAGE_SIZE;
>>   -    for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>> +    for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>>           /*
>>            * Make a copy of the state structure, inside GuC log buffer
>>            * (which is uncached mapped), on the stack to avoid reading
>> @@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
>>        *  +===============================+ 00B
>>        *  |    Crash dump state header    |
>>        *  +-------------------------------+ 32B
>> -     *  |       DPC state header        |
>> +     *  |      Debug state header       |
>>        *  +-------------------------------+ 64B
>> -     *  |       ISR state header        |
>> -     *  +-------------------------------+ 96B
>>        *  |                               |
>>        *  +===============================+ PAGE_SIZE (4KB)
>>        *  |        Crash Dump logs        |
>>        *  +===============================+ + CRASH_SIZE
>> -     *  |           DPC logs            |
>> -     *  +===============================+ + DPC_SIZE
>> -     *  |           ISR logs            |
>> -     *  +===============================+ + ISR_SIZE
>> +     *  |          Debug logs           |
>> +     *  +===============================+ + DEBUG_SIZE
>>        */
>> -    guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
>> -            ISR_BUFFER_SIZE;
>> +    guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
>>         vma = intel_guc_allocate_vma(guc, guc_log_size);
>>       if (IS_ERR(vma)) {
>> @@ -675,10 +668,8 @@ static const char *
>>   stringify_guc_log_type(enum guc_log_buffer_type type)
>>   {
>>       switch (type) {
>> -    case GUC_ISR_LOG_BUFFER:
>> -        return "ISR";
>> -    case GUC_DPC_LOG_BUFFER:
>> -        return "DPC";
>> +    case GUC_DEBUG_LOG_BUFFER:
>> +        return "DEBUG";
>>       case GUC_CRASH_DUMP_LOG_BUFFER:
>>           return "CRASH";
>>       default:
>> @@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log,
>> struct drm_printer *p)
>>         drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
>>   -    for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>> +    for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER;
>> type++) {
>>           drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
>>                  stringify_guc_log_type(type),
>>                  log->stats[type].flush,
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> index 11fccd0b2294..ac1ee1d5ce10 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
>> @@ -17,12 +17,10 @@ struct intel_guc;
>>     #ifdef CONFIG_DRM_I915_DEBUG_GUC
>>   #define CRASH_BUFFER_SIZE    SZ_2M
>> -#define DPC_BUFFER_SIZE        SZ_8M
>> -#define ISR_BUFFER_SIZE        SZ_8M
>> +#define DEBUG_BUFFER_SIZE    SZ_16M
>>   #else
>>   #define CRASH_BUFFER_SIZE    SZ_8K
>> -#define DPC_BUFFER_SIZE        SZ_32K
>> -#define ISR_BUFFER_SIZE        SZ_32K
>> +#define DEBUG_BUFFER_SIZE    SZ_64K
>>   #endif
>>     /*
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> index df647c9a8d56..9f23e9de3237 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
>> @@ -48,19 +48,19 @@ void intel_uc_fw_change_status(struct intel_uc_fw
>> *uc_fw,
>>    * firmware as TGL.
>>    */
>>   #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \
>> -    fw_def(ALDERLAKE_S, 0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7,
>> 5, 0)) \
>> -    fw_def(ROCKETLAKE,  0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7,
>> 5, 0)) \
>> -    fw_def(TIGERLAKE,   0, guc_def(tgl, 49, 0, 1), huc_def(tgl,  7,
>> 5, 0)) \
>> -    fw_def(JASPERLAKE,  0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9,
>> 0, 0)) \
>> -    fw_def(ELKHARTLAKE, 0, guc_def(ehl, 49, 0, 1), huc_def(ehl,  9,
>> 0, 0)) \
>> -    fw_def(ICELAKE,     0, guc_def(icl, 49, 0, 1), huc_def(icl,  9,
>> 0, 0)) \
>> -    fw_def(COMETLAKE,   5, guc_def(cml, 49, 0, 1), huc_def(cml,  4,
>> 0, 0)) \
>> -    fw_def(COMETLAKE,   0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4,
>> 0, 0)) \
>> -    fw_def(COFFEELAKE,  0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4,
>> 0, 0)) \
>> -    fw_def(GEMINILAKE,  0, guc_def(glk, 49, 0, 1), huc_def(glk,  4,
>> 0, 0)) \
>> -    fw_def(KABYLAKE,    0, guc_def(kbl, 49, 0, 1), huc_def(kbl,  4,
>> 0, 0)) \
>> -    fw_def(BROXTON,     0, guc_def(bxt, 49, 0, 1), huc_def(bxt,  2,
>> 0, 0)) \
>> -    fw_def(SKYLAKE,     0, guc_def(skl, 49, 0, 1), huc_def(skl,  2,
>> 0, 0))
>> +    fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7,
>> 5, 0)) \
>> +    fw_def(ROCKETLAKE,  0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7,
>> 5, 0)) \
>> +    fw_def(TIGERLAKE,   0, guc_def(tgl, 62, 0, 0), huc_def(tgl,  7,
>> 5, 0)) \
>> +    fw_def(JASPERLAKE,  0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9,
>> 0, 0)) \
>> +    fw_def(ELKHARTLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl,  9,
>> 0, 0)) \
>> +    fw_def(ICELAKE,     0, guc_def(icl, 62, 0, 0), huc_def(icl,  9,
>> 0, 0)) \
>> +    fw_def(COMETLAKE,   5, guc_def(cml, 62, 0, 0), huc_def(cml,  4,
>> 0, 0)) \
>> +    fw_def(COMETLAKE,   0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4,
>> 0, 0)) \
>> +    fw_def(COFFEELAKE,  0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4,
>> 0, 0)) \
>> +    fw_def(GEMINILAKE,  0, guc_def(glk, 62, 0, 0), huc_def(glk,  4,
>> 0, 0)) \
>> +    fw_def(KABYLAKE,    0, guc_def(kbl, 62, 0, 0), huc_def(kbl,  4,
>> 0, 0)) \
>> +    fw_def(BROXTON,     0, guc_def(bxt, 62, 0, 0), huc_def(bxt,  2,
>> 0, 0)) \
>> +    fw_def(SKYLAKE,     0, guc_def(skl, 62, 0, 0), huc_def(skl,  2,
>> 0, 0))
>>     #define __MAKE_UC_FW_PATH(prefix_, name_, major_, minor_, patch_) \
>>       "i915/" \
> 
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [Intel-gfx]  ✗ Fi.CI.IGT:  failure for Update firmware to v62.0.0 (rev4)
  2021-06-16  6:04 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
@ 2021-06-18 22:38   ` Matt Roper
  0 siblings, 0 replies; 19+ messages in thread
From: Matt Roper @ 2021-06-18 22:38 UTC (permalink / raw)
  To: intel-gfx

On Wed, Jun 16, 2021 at 06:04:55AM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: Update firmware to v62.0.0 (rev4)
> URL   : https://patchwork.freedesktop.org/series/91106/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_10226_full -> Patchwork_20379_full
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_20379_full absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_20379_full, please notify your bug team to allow them
>   to document this new failure mode, which will reduce false positives in CI.
> 
>   
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in Patchwork_20379_full:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt@kms_big_fb@linear-32bpp-rotate-180:
>     - shard-iclb:         [PASS][1] -> [DMESG-WARN][2] +1 similar issue
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb4/igt@kms_big_fb@linear-32bpp-rotate-180.html
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_big_fb@linear-32bpp-rotate-180.html

KMS pipe state mismatch wouldn't be related to the GuC changes here.

> 
>   
> #### Warnings ####
> 
>   * igt@gem_exec_fair@basic-pace-solo@rcs0:
>     - shard-glk:          [FAIL][3] ([i915#2842]) -> [FAIL][4]
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk2/igt@gem_exec_fair@basic-pace-solo@rcs0.html
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk3/igt@gem_exec_fair@basic-pace-solo@rcs0.html

This test has been failing pretty much constantly on all platforms
according to CI history.  And the CI failure here is from a run that
isn't using the GuC, so it wouldn't be caused by these changes.

Series applied to gt-next.


Matt

> 
>   
> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_20379_full that come from known issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@gem_create@create-clear:
>     - shard-glk:          [PASS][5] -> [FAIL][6] ([i915#3160])
>    [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk2/igt@gem_create@create-clear.html
>    [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk3/igt@gem_create@create-clear.html
> 
>   * igt@gem_ctx_isolation@preservation-s3@bcs0:
>     - shard-kbl:          [PASS][7] -> [DMESG-WARN][8] ([i915#180]) +2 similar issues
>    [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl6/igt@gem_ctx_isolation@preservation-s3@bcs0.html
>    [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@gem_ctx_isolation@preservation-s3@bcs0.html
> 
>   * igt@gem_ctx_persistence@engines-queued:
>     - shard-snb:          NOTRUN -> [SKIP][9] ([fdo#109271] / [i915#1099]) +2 similar issues
>    [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@gem_ctx_persistence@engines-queued.html
> 
>   * igt@gem_exec_fair@basic-flow@rcs0:
>     - shard-skl:          NOTRUN -> [SKIP][10] ([fdo#109271]) +72 similar issues
>    [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@gem_exec_fair@basic-flow@rcs0.html
> 
>   * igt@gem_exec_fair@basic-none-share@rcs0:
>     - shard-apl:          [PASS][11] -> [SKIP][12] ([fdo#109271])
>    [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl3/igt@gem_exec_fair@basic-none-share@rcs0.html
>    [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@gem_exec_fair@basic-none-share@rcs0.html
> 
>   * igt@gem_exec_fair@basic-none-solo@rcs0:
>     - shard-kbl:          [PASS][13] -> [FAIL][14] ([i915#2842])
>    [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl6/igt@gem_exec_fair@basic-none-solo@rcs0.html
>    [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl1/igt@gem_exec_fair@basic-none-solo@rcs0.html
> 
>   * igt@gem_exec_fair@basic-none@vecs0:
>     - shard-apl:          NOTRUN -> [FAIL][15] ([i915#2842] / [i915#3468])
>    [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@gem_exec_fair@basic-none@vecs0.html
> 
>   * igt@gem_exec_fair@basic-pace@vecs0:
>     - shard-tglb:         [PASS][16] -> [FAIL][17] ([i915#2842]) +2 similar issues
>    [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-tglb3/igt@gem_exec_fair@basic-pace@vecs0.html
>    [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-tglb2/igt@gem_exec_fair@basic-pace@vecs0.html
> 
>   * igt@gem_exec_reloc@basic-wide-active@rcs0:
>     - shard-snb:          NOTRUN -> [FAIL][18] ([i915#2389]) +2 similar issues
>    [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@gem_exec_reloc@basic-wide-active@rcs0.html
> 
>   * igt@gem_exec_schedule@semaphore-codependency:
>     - shard-snb:          NOTRUN -> [SKIP][19] ([fdo#109271]) +265 similar issues
>    [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@gem_exec_schedule@semaphore-codependency.html
> 
>   * igt@gem_userptr_blits@input-checking:
>     - shard-apl:          NOTRUN -> [DMESG-WARN][20] ([i915#3002])
>    [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@gem_userptr_blits@input-checking.html
> 
>   * igt@gem_userptr_blits@vma-merge:
>     - shard-snb:          NOTRUN -> [FAIL][21] ([i915#2724])
>    [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb6/igt@gem_userptr_blits@vma-merge.html
> 
>   * igt@gem_workarounds@suspend-resume:
>     - shard-apl:          [PASS][22] -> [DMESG-WARN][23] ([i915#180]) +2 similar issues
>    [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl1/igt@gem_workarounds@suspend-resume.html
>    [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl6/igt@gem_workarounds@suspend-resume.html
> 
>   * igt@i915_pm_dc@dc3co-vpb-simulation:
>     - shard-kbl:          NOTRUN -> [SKIP][24] ([fdo#109271] / [i915#658])
>    [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@i915_pm_dc@dc3co-vpb-simulation.html
> 
>   * igt@i915_pm_rpm@system-suspend-modeset:
>     - shard-skl:          [PASS][25] -> [INCOMPLETE][26] ([i915#151])
>    [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl2/igt@i915_pm_rpm@system-suspend-modeset.html
>    [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl9/igt@i915_pm_rpm@system-suspend-modeset.html
> 
>   * igt@i915_selftest@live@gt_pm:
>     - shard-skl:          NOTRUN -> [DMESG-FAIL][27] ([i915#1886] / [i915#2291])
>    [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@i915_selftest@live@gt_pm.html
> 
>   * igt@kms_big_fb@x-tiled-32bpp-rotate-180:
>     - shard-glk:          [PASS][28] -> [DMESG-WARN][29] ([i915#118] / [i915#95])
>    [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk4/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html
>    [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk8/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html
> 
>   * igt@kms_chamelium@hdmi-hpd-for-each-pipe:
>     - shard-kbl:          NOTRUN -> [SKIP][30] ([fdo#109271] / [fdo#111827]) +3 similar issues
>    [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@kms_chamelium@hdmi-hpd-for-each-pipe.html
> 
>   * igt@kms_chamelium@hdmi-mode-timings:
>     - shard-snb:          NOTRUN -> [SKIP][31] ([fdo#109271] / [fdo#111827]) +15 similar issues
>    [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb6/igt@kms_chamelium@hdmi-mode-timings.html
> 
>   * igt@kms_color_chamelium@pipe-a-ctm-blue-to-red:
>     - shard-iclb:         NOTRUN -> [SKIP][32] ([fdo#109284] / [fdo#111827])
>    [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_color_chamelium@pipe-a-ctm-blue-to-red.html
> 
>   * igt@kms_color_chamelium@pipe-d-ctm-green-to-red:
>     - shard-skl:          NOTRUN -> [SKIP][33] ([fdo#109271] / [fdo#111827]) +5 similar issues
>    [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_color_chamelium@pipe-d-ctm-green-to-red.html
> 
>   * igt@kms_color_chamelium@pipe-invalid-degamma-lut-sizes:
>     - shard-apl:          NOTRUN -> [SKIP][34] ([fdo#109271] / [fdo#111827]) +10 similar issues
>    [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_color_chamelium@pipe-invalid-degamma-lut-sizes.html
> 
>   * igt@kms_content_protection@atomic-dpms:
>     - shard-kbl:          NOTRUN -> [TIMEOUT][35] ([i915#1319])
>    [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_content_protection@atomic-dpms.html
> 
>   * igt@kms_content_protection@legacy:
>     - shard-iclb:         NOTRUN -> [SKIP][36] ([fdo#109300] / [fdo#111066])
>    [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_content_protection@legacy.html
> 
>   * igt@kms_cursor_crc@pipe-d-cursor-suspend:
>     - shard-kbl:          NOTRUN -> [SKIP][37] ([fdo#109271]) +66 similar issues
>    [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_cursor_crc@pipe-d-cursor-suspend.html
> 
>   * igt@kms_cursor_legacy@flip-vs-cursor-varying-size:
>     - shard-skl:          [PASS][38] -> [FAIL][39] ([i915#2346])
>    [38]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl1/igt@kms_cursor_legacy@flip-vs-cursor-varying-size.html
>    [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl3/igt@kms_cursor_legacy@flip-vs-cursor-varying-size.html
> 
>   * igt@kms_cursor_legacy@pipe-d-torture-bo:
>     - shard-skl:          NOTRUN -> [SKIP][40] ([fdo#109271] / [i915#533])
>    [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@kms_cursor_legacy@pipe-d-torture-bo.html
> 
>   * igt@kms_dp_tiled_display@basic-test-pattern-with-chamelium:
>     - shard-iclb:         NOTRUN -> [SKIP][41] ([i915#3528])
>    [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_dp_tiled_display@basic-test-pattern-with-chamelium.html
> 
>   * igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-xtiled:
>     - shard-skl:          [PASS][42] -> [DMESG-WARN][43] ([i915#1982]) +1 similar issue
>    [42]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl8/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-xtiled.html
>    [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl8/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-xtiled.html
> 
>   * igt@kms_fbcon_fbt@fbc-suspend:
>     - shard-apl:          [PASS][44] -> [INCOMPLETE][45] ([i915#180] / [i915#1982])
>    [44]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl6/igt@kms_fbcon_fbt@fbc-suspend.html
>    [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@kms_fbcon_fbt@fbc-suspend.html
>     - shard-kbl:          [PASS][46] -> [INCOMPLETE][47] ([i915#155] / [i915#180] / [i915#636])
>    [46]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl3/igt@kms_fbcon_fbt@fbc-suspend.html
>    [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@kms_fbcon_fbt@fbc-suspend.html
> 
>   * igt@kms_flip@2x-dpms-vs-vblank-race:
>     - shard-iclb:         NOTRUN -> [SKIP][48] ([fdo#109274])
>    [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_flip@2x-dpms-vs-vblank-race.html
> 
>   * igt@kms_flip@flip-vs-suspend-interruptible@c-dp1:
>     - shard-apl:          NOTRUN -> [DMESG-WARN][49] ([i915#180]) +3 similar issues
>    [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@kms_flip@flip-vs-suspend-interruptible@c-dp1.html
> 
>   * igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytilegen12rcccs:
>     - shard-skl:          NOTRUN -> [SKIP][50] ([fdo#109271] / [i915#2672])
>    [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytilegen12rcccs.html
> 
>   * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytilercccs:
>     - shard-kbl:          NOTRUN -> [SKIP][51] ([fdo#109271] / [i915#2672])
>    [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytilercccs.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-cur-indfb-draw-render:
>     - shard-iclb:         NOTRUN -> [SKIP][52] ([fdo#109280])
>    [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_frontbuffer_tracking@fbc-2p-primscrn-cur-indfb-draw-render.html
> 
>   * igt@kms_hdr@bpc-switch:
>     - shard-skl:          NOTRUN -> [FAIL][53] ([i915#1188])
>    [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl10/igt@kms_hdr@bpc-switch.html
> 
>   * igt@kms_hdr@bpc-switch-dpms:
>     - shard-skl:          [PASS][54] -> [FAIL][55] ([i915#1188])
>    [54]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl6/igt@kms_hdr@bpc-switch-dpms.html
>    [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_hdr@bpc-switch-dpms.html
> 
>   * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-d-frame-sequence:
>     - shard-kbl:          NOTRUN -> [SKIP][56] ([fdo#109271] / [i915#533])
>    [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-d-frame-sequence.html
> 
>   * igt@kms_pipe_crc_basic@read-crc-pipe-c:
>     - shard-skl:          [PASS][57] -> [FAIL][58] ([i915#53])
>    [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl5/igt@kms_pipe_crc_basic@read-crc-pipe-c.html
>    [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl8/igt@kms_pipe_crc_basic@read-crc-pipe-c.html
> 
>   * igt@kms_plane_alpha_blend@pipe-a-alpha-basic:
>     - shard-apl:          NOTRUN -> [FAIL][59] ([fdo#108145] / [i915#265]) +1 similar issue
>    [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html
> 
>   * igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb:
>     - shard-skl:          NOTRUN -> [FAIL][60] ([fdo#108145] / [i915#265]) +1 similar issue
>    [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-alpha-basic:
>     - shard-kbl:          NOTRUN -> [FAIL][61] ([fdo#108145] / [i915#265])
>    [61]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_plane_alpha_blend@pipe-c-alpha-basic.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-alpha-transparent-fb:
>     - shard-apl:          NOTRUN -> [FAIL][62] ([i915#265])
>    [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_plane_alpha_blend@pipe-c-alpha-transparent-fb.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
>     - shard-skl:          [PASS][63] -> [FAIL][64] ([fdo#108145] / [i915#265]) +1 similar issue
>    [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl5/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
>    [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl8/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
> 
>   * igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-4:
>     - shard-skl:          NOTRUN -> [SKIP][65] ([fdo#109271] / [i915#658]) +1 similar issue
>    [65]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-4.html
> 
>   * igt@kms_psr2_sf@plane-move-sf-dmg-area-3:
>     - shard-apl:          NOTRUN -> [SKIP][66] ([fdo#109271] / [i915#658]) +1 similar issue
>    [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@kms_psr2_sf@plane-move-sf-dmg-area-3.html
> 
>   * igt@kms_psr@psr2_no_drrs:
>     - shard-iclb:         [PASS][67] -> [SKIP][68] ([fdo#109441]) +1 similar issue
>    [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb2/igt@kms_psr@psr2_no_drrs.html
>    [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb4/igt@kms_psr@psr2_no_drrs.html
> 
>   * igt@kms_setmode@basic:
>     - shard-snb:          NOTRUN -> [FAIL][69] ([i915#31])
>    [69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-snb7/igt@kms_setmode@basic.html
> 
>   * igt@kms_sysfs_edid_timing:
>     - shard-apl:          NOTRUN -> [FAIL][70] ([IGT#2])
>    [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@kms_sysfs_edid_timing.html
> 
>   * igt@kms_vblank@pipe-d-ts-continuation-modeset-rpm:
>     - shard-iclb:         NOTRUN -> [SKIP][71] ([fdo#109278])
>    [71]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@kms_vblank@pipe-d-ts-continuation-modeset-rpm.html
> 
>   * igt@kms_vblank@pipe-d-wait-idle:
>     - shard-apl:          NOTRUN -> [SKIP][72] ([fdo#109271] / [i915#533]) +1 similar issue
>    [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@kms_vblank@pipe-d-wait-idle.html
> 
>   * igt@kms_writeback@writeback-invalid-parameters:
>     - shard-kbl:          NOTRUN -> [SKIP][73] ([fdo#109271] / [i915#2437])
>    [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_writeback@writeback-invalid-parameters.html
> 
>   * igt@nouveau_crc@pipe-a-source-rg:
>     - shard-iclb:         NOTRUN -> [SKIP][74] ([i915#2530])
>    [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@nouveau_crc@pipe-a-source-rg.html
> 
>   * igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame:
>     - shard-apl:          NOTRUN -> [SKIP][75] ([fdo#109271]) +109 similar issues
>    [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl1/igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame.html
> 
>   * igt@prime_vgem@sync@vcs0:
>     - shard-skl:          [PASS][76] -> [INCOMPLETE][77] ([i915#409])
>    [76]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl4/igt@prime_vgem@sync@vcs0.html
>    [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl5/igt@prime_vgem@sync@vcs0.html
> 
>   * igt@sysfs_clients@fair-3:
>     - shard-skl:          NOTRUN -> [SKIP][78] ([fdo#109271] / [i915#2994])
>    [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl6/igt@sysfs_clients@fair-3.html
> 
>   * igt@sysfs_clients@recycle:
>     - shard-apl:          NOTRUN -> [SKIP][79] ([fdo#109271] / [i915#2994])
>    [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl3/igt@sysfs_clients@recycle.html
> 
>   * igt@sysfs_clients@sema-10:
>     - shard-kbl:          NOTRUN -> [SKIP][80] ([fdo#109271] / [i915#2994])
>    [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@sysfs_clients@sema-10.html
> 
>   
> #### Possible fixes ####
> 
>   * igt@gem_exec_balancer@semaphore:
>     - shard-glk:          [DMESG-WARN][81] ([i915#118] / [i915#95]) -> [PASS][82] +2 similar issues
>    [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk4/igt@gem_exec_balancer@semaphore.html
>    [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk2/igt@gem_exec_balancer@semaphore.html
> 
>   * igt@gem_exec_fair@basic-none@vcs0:
>     - shard-kbl:          [FAIL][83] ([i915#2842]) -> [PASS][84] +1 similar issue
>    [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@gem_exec_fair@basic-none@vcs0.html
>    [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@gem_exec_fair@basic-none@vcs0.html
> 
>   * igt@gem_exec_fair@basic-pace-share@rcs0:
>     - shard-tglb:         [FAIL][85] ([i915#2842]) -> [PASS][86] +1 similar issue
>    [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-tglb2/igt@gem_exec_fair@basic-pace-share@rcs0.html
>    [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-tglb8/igt@gem_exec_fair@basic-pace-share@rcs0.html
> 
>   * igt@gem_exec_fair@basic-pace@rcs0:
>     - shard-glk:          [FAIL][87] ([i915#2842]) -> [PASS][88]
>    [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk3/igt@gem_exec_fair@basic-pace@rcs0.html
>    [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk7/igt@gem_exec_fair@basic-pace@rcs0.html
> 
>   * igt@gem_exec_fair@basic-sync@rcs0:
>     - shard-kbl:          [SKIP][89] ([fdo#109271]) -> [PASS][90]
>    [89]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl3/igt@gem_exec_fair@basic-sync@rcs0.html
>    [90]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl6/igt@gem_exec_fair@basic-sync@rcs0.html
> 
>   * igt@i915_selftest@live@gt_pm:
>     - shard-glk:          [DMESG-FAIL][91] ([i915#1886] / [i915#2291]) -> [PASS][92]
>    [91]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk2/igt@i915_selftest@live@gt_pm.html
>    [92]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk3/igt@i915_selftest@live@gt_pm.html
> 
>   * igt@kms_cursor_legacy@flip-vs-cursor-legacy:
>     - shard-skl:          [FAIL][93] ([i915#2346]) -> [PASS][94]
>    [93]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl1/igt@kms_cursor_legacy@flip-vs-cursor-legacy.html
>    [94]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl3/igt@kms_cursor_legacy@flip-vs-cursor-legacy.html
> 
>   * igt@kms_flip@flip-vs-expired-vblank-interruptible@c-edp1:
>     - shard-skl:          [FAIL][95] ([i915#79]) -> [PASS][96]
>    [95]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl6/igt@kms_flip@flip-vs-expired-vblank-interruptible@c-edp1.html
>    [96]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@c-edp1.html
> 
>   * igt@kms_hdr@bpc-switch-suspend:
>     - shard-kbl:          [DMESG-WARN][97] ([i915#180]) -> [PASS][98] +3 similar issues
>    [97]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@kms_hdr@bpc-switch-suspend.html
>    [98]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl3/igt@kms_hdr@bpc-switch-suspend.html
> 
>   * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min:
>     - shard-skl:          [FAIL][99] ([fdo#108145] / [i915#265]) -> [PASS][100]
>    [99]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl2/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
>    [100]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl4/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
> 
>   * igt@kms_psr2_su@page_flip:
>     - shard-iclb:         [SKIP][101] ([fdo#109642] / [fdo#111068] / [i915#658]) -> [PASS][102]
>    [101]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb6/igt@kms_psr2_su@page_flip.html
>    [102]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_psr2_su@page_flip.html
> 
>   * igt@kms_psr@psr2_suspend:
>     - shard-iclb:         [SKIP][103] ([fdo#109441]) -> [PASS][104] +2 similar issues
>    [103]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb5/igt@kms_psr@psr2_suspend.html
>    [104]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_psr@psr2_suspend.html
> 
>   * igt@kms_vblank@pipe-b-ts-continuation-dpms-rpm:
>     - shard-tglb:         [DMESG-WARN][105] ([i915#2411] / [i915#2868]) -> [PASS][106]
>    [105]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-tglb5/igt@kms_vblank@pipe-b-ts-continuation-dpms-rpm.html
>    [106]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-tglb3/igt@kms_vblank@pipe-b-ts-continuation-dpms-rpm.html
> 
>   * igt@perf@blocking:
>     - shard-skl:          [FAIL][107] ([i915#1542]) -> [PASS][108] +1 similar issue
>    [107]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl2/igt@perf@blocking.html
>    [108]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl4/igt@perf@blocking.html
> 
>   * igt@perf@polling-parameterized:
>     - shard-glk:          [FAIL][109] ([i915#1542]) -> [PASS][110]
>    [109]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-glk9/igt@perf@polling-parameterized.html
>    [110]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-glk4/igt@perf@polling-parameterized.html
> 
>   * igt@prime_vgem@sync@rcs0:
>     - shard-iclb:         [INCOMPLETE][111] ([i915#409]) -> [PASS][112]
>    [111]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb3/igt@prime_vgem@sync@rcs0.html
>    [112]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@prime_vgem@sync@rcs0.html
> 
>   
> #### Warnings ####
> 
>   * igt@gem_exec_fair@basic-none-rrul@rcs0:
>     - shard-iclb:         [FAIL][113] ([i915#2842]) -> [FAIL][114] ([i915#2852])
>    [113]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb5/igt@gem_exec_fair@basic-none-rrul@rcs0.html
>    [114]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb5/igt@gem_exec_fair@basic-none-rrul@rcs0.html
> 
>   * igt@i915_pm_dc@dc3co-vpb-simulation:
>     - shard-iclb:         [SKIP][115] ([i915#588]) -> [SKIP][116] ([i915#658])
>    [115]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [116]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb4/igt@i915_pm_dc@dc3co-vpb-simulation.html
> 
>   * igt@i915_pm_rc6_residency@rc6-fence:
>     - shard-iclb:         [WARN][117] ([i915#1804] / [i915#2684]) -> [WARN][118] ([i915#2684])
>    [117]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb3/igt@i915_pm_rc6_residency@rc6-fence.html
>    [118]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@i915_pm_rc6_residency@rc6-fence.html
> 
>   * igt@kms_dp_dsc@basic-dsc-enable-edp:
>     - shard-iclb:         [SKIP][119] ([fdo#109349]) -> [DMESG-WARN][120] ([i915#1226])
>    [119]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb6/igt@kms_dp_dsc@basic-dsc-enable-edp.html
>    [120]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_dp_dsc@basic-dsc-enable-edp.html
> 
>   * igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1:
>     - shard-skl:          [FAIL][121] ([i915#79]) -> [DMESG-WARN][122] ([i915#1982])
>    [121]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-skl6/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html
>    [122]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html
> 
>   * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-5:
>     - shard-iclb:         [SKIP][123] ([i915#658]) -> [SKIP][124] ([i915#2920]) +1 similar issue
>    [123]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb6/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-5.html
>    [124]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-5.html
> 
>   * igt@kms_psr2_sf@plane-move-sf-dmg-area-2:
>     - shard-iclb:         [SKIP][125] ([i915#2920]) -> [SKIP][126] ([i915#658])
>    [125]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb2/igt@kms_psr2_sf@plane-move-sf-dmg-area-2.html
>    [126]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb4/igt@kms_psr2_sf@plane-move-sf-dmg-area-2.html
> 
>   * igt@runner@aborted:
>     - shard-kbl:          ([FAIL][127], [FAIL][128], [FAIL][129], [FAIL][130], [FAIL][131], [FAIL][132], [FAIL][133], [FAIL][134]) ([i915#1436] / [i915#180] / [i915#1814] / [i915#2505] / [i915#3002] / [i915#3363]) -> ([FAIL][135], [FAIL][136], [FAIL][137], [FAIL][138], [FAIL][139]) ([i915#1436] / [i915#180] / [i915#1814] / [i915#3002] / [i915#3363] / [i915#92])
>    [127]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@runner@aborted.html
>    [128]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
>    [129]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
>    [130]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
>    [131]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@runner@aborted.html
>    [132]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl7/igt@runner@aborted.html
>    [133]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl4/igt@runner@aborted.html
>    [134]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-kbl6/igt@runner@aborted.html
>    [135]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl2/igt@runner@aborted.html
>    [136]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@runner@aborted.html
>    [137]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@runner@aborted.html
>    [138]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl4/igt@runner@aborted.html
>    [139]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-kbl7/igt@runner@aborted.html
>     - shard-iclb:         ([FAIL][140], [FAIL][141], [FAIL][142]) ([i915#2426] / [i915#3002] / [i915#409]) -> ([FAIL][143], [FAIL][144], [FAIL][145], [FAIL][146]) ([i915#1814] / [i915#3002])
>    [140]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb3/igt@runner@aborted.html
>    [141]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb7/igt@runner@aborted.html
>    [142]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-iclb5/igt@runner@aborted.html
>    [143]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb6/igt@runner@aborted.html
>    [144]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb2/igt@runner@aborted.html
>    [145]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@runner@aborted.html
>    [146]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-iclb1/igt@runner@aborted.html
>     - shard-apl:          ([FAIL][147], [FAIL][148], [FAIL][149], [FAIL][150]) ([i915#180] / [i915#1814] / [i915#3002] / [i915#3363]) -> ([FAIL][151], [FAIL][152], [FAIL][153], [FAIL][154], [FAIL][155], [FAIL][156], [FAIL][157], [FAIL][158], [FAIL][159]) ([fdo#109271] / [i915#180] / [i915#1814] / [i915#3002] / [i915#3363])
>    [147]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl3/igt@runner@aborted.html
>    [148]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl6/igt@runner@aborted.html
>    [149]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl2/igt@runner@aborted.html
>    [150]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10226/shard-apl3/igt@runner@aborted.html
>    [151]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@runner@aborted.html
>    [152]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@runner@aborted.html
>    [153]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/shard-apl8/igt@runner@aborted.html
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20379/index.html

> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx


-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2021-06-18 22:38 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-16  0:12 [PATCH 0/3] Update firmware to v62.0.0 Matthew Brost
2021-06-16  0:12 ` [Intel-gfx] " Matthew Brost
2021-06-16  0:13 ` [PATCH 1/3] drm/i915/guc: Introduce unified HXG messages Matthew Brost
2021-06-16  0:13   ` [Intel-gfx] " Matthew Brost
2021-06-16  0:13 ` [PATCH 2/3] drm/i915/guc: Update firmware to v62.0.0 Matthew Brost
2021-06-16  0:13   ` [Intel-gfx] " Matthew Brost
2021-06-17  1:41   ` Daniele Ceraolo Spurio
2021-06-17  1:41     ` [Intel-gfx] " Daniele Ceraolo Spurio
2021-06-17  6:24     ` Michal Wajdeczko
2021-06-17  6:24       ` [Intel-gfx] " Michal Wajdeczko
2021-06-16  0:13 ` [PATCH 3/3] drm/i915/doc: Include GuC ABI documentation Matthew Brost
2021-06-16  0:13   ` [Intel-gfx] " Matthew Brost
2021-06-16  0:20 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Update firmware to v62.0.0 (rev4) Patchwork
2021-06-16  0:22 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-06-16  0:49 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-06-16  6:04 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-06-18 22:38   ` Matt Roper
2021-06-16 15:16 ` [Intel-gfx] [PATCH 0/3] Update firmware to v62.0.0 Mike Lothian
2021-06-16 15:16   ` Mike Lothian

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