[Intel-gfx] [PATCH 0/1] Introduce new i915 macros for checking PTEs

[Intel-gfx] [PATCH 0/1] Introduce new i915 macros for checking PTEs

[Michael Cheng]

From: Michael Cheng <michael.cheng@intel.com>

This series is to introduce new macros generic to i915 for checking 0 and 1 bits,
instead on relying on whats defined by the mmu, since it could be different
or non-exisitent between different platforms.

Michael Cheng (1):
  drm/i915: Introduce new macros for i915 PTE

 drivers/gpu/drm/i915/gt/gen8_ppgtt.c |  6 +++---
 drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 +-
 drivers/gpu/drm/i915/gt/intel_gtt.h  |  3 +++
 drivers/gpu/drm/i915/gvt/gtt.c       | 12 ++++++------
 4 files changed, 13 insertions(+), 10 deletions(-)

-- 
2.25.1

[Intel-gfx] [PATCH 1/1] drm/i915: Introduce new macros for i915 PTE

[Michael Cheng]

From: Michael Cheng <michael.cheng@intel.com>

Certain functions within i915 uses macros that are defined for
specific architectures by the mmu, such as _PAGE_RW and _PAGE_PRESENT
(Some architectures don't even have these macros defined, like ARM64).

Instead of re-using bits defined for the CPU, we should use bits
defined for i915. This patch introduces two new macros,
I915_PAGE_PRESENT and I915_PAGE_RW, to check for bits 0 and 1 and, to
replace all occurances of _PAGE_RW and _PAGE_PRESENT within i915.

Looking at the bspecs for pre gen 12 and gen 12, bit 0 and 1 are the
same throughout the generations.

Signed-off-by: Michael Cheng <michael.cheng@intel.com>
---
 drivers/gpu/drm/i915/gt/gen8_ppgtt.c |  6 +++---
 drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 +-
 drivers/gpu/drm/i915/gt/intel_gtt.h  |  3 +++
 drivers/gpu/drm/i915/gvt/gtt.c       | 12 ++++++------
 4 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
index 9966e9dc5218..f89b50ffc286 100644
--- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
@@ -18,7 +18,7 @@
 static u64 gen8_pde_encode(const dma_addr_t addr,
 			   const enum i915_cache_level level)
 {
-	u64 pde = addr | _PAGE_PRESENT | _PAGE_RW;
+	u64 pde = addr | I915_PAGE_PRESENT | I915_PAGE_RW;
 
 	if (level != I915_CACHE_NONE)
 		pde |= PPAT_CACHED_PDE;
@@ -32,10 +32,10 @@ static u64 gen8_pte_encode(dma_addr_t addr,
 			   enum i915_cache_level level,
 			   u32 flags)
 {
-	gen8_pte_t pte = addr | _PAGE_PRESENT | _PAGE_RW;
+	gen8_pte_t pte = addr | I915_PAGE_PRESENT | I915_PAGE_RW;
 
 	if (unlikely(flags & PTE_READ_ONLY))
-		pte &= ~_PAGE_RW;
+		pte &= ~I915_PAGE_RW;
 
 	if (flags & PTE_LM)
 		pte |= GEN12_PPGTT_PTE_LM;
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index 1fb4a03d7ac3..3f8e1ee0fbfa 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -207,7 +207,7 @@ u64 gen8_ggtt_pte_encode(dma_addr_t addr,
 			 enum i915_cache_level level,
 			 u32 flags)
 {
-	gen8_pte_t pte = addr | _PAGE_PRESENT;
+	gen8_pte_t pte = addr | I915_PAGE_PRESENT;
 
 	if (flags & PTE_LM)
 		pte |= GEN12_GGTT_PTE_LM;
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h
index dfeaef680aac..fba9c0c18f4a 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.h
@@ -39,6 +39,9 @@
 
 #define NALLOC 3 /* 1 normal, 1 for concurrent threads, 1 for preallocation */
 
+#define I915_PAGE_PRESENT BIT_ULL(0)
+#define I915_PAGE_RW BIT_ULL(1)
+
 #define I915_GTT_PAGE_SIZE_4K	BIT_ULL(12)
 #define I915_GTT_PAGE_SIZE_64K	BIT_ULL(16)
 #define I915_GTT_PAGE_SIZE_2M	BIT_ULL(21)
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 53d0cb327539..8f6a055854f7 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -446,17 +446,17 @@ static bool gen8_gtt_test_present(struct intel_gvt_gtt_entry *e)
 			|| e->type == GTT_TYPE_PPGTT_ROOT_L4_ENTRY)
 		return (e->val64 != 0);
 	else
-		return (e->val64 & _PAGE_PRESENT);
+		return (e->val64 & I915_PAGE_PRESENT);
 }
 
 static void gtt_entry_clear_present(struct intel_gvt_gtt_entry *e)
 {
-	e->val64 &= ~_PAGE_PRESENT;
+	e->val64 &= ~I915_PAGE_PRESENT;
 }
 
 static void gtt_entry_set_present(struct intel_gvt_gtt_entry *e)
 {
-	e->val64 |= _PAGE_PRESENT;
+	e->val64 |= I915_PAGE_PRESENT;
 }
 
 static bool gen8_gtt_test_64k_splited(struct intel_gvt_gtt_entry *e)
@@ -2439,7 +2439,7 @@ static int alloc_scratch_pages(struct intel_vgpu *vgpu,
 		/* The entry parameters like present/writeable/cache type
 		 * set to the same as i915's scratch page tree.
 		 */
-		se.val64 |= _PAGE_PRESENT | _PAGE_RW;
+		se.val64 |= I915_PAGE_PRESENT | I915_PAGE_RW;
 		if (type == GTT_TYPE_PPGTT_PDE_PT)
 			se.val64 |= PPAT_CACHED;
 
@@ -2896,7 +2896,7 @@ void intel_gvt_restore_ggtt(struct intel_gvt *gvt)
 		offset = vgpu_aperture_gmadr_base(vgpu) >> PAGE_SHIFT;
 		for (idx = 0; idx < num_low; idx++) {
 			pte = mm->ggtt_mm.host_ggtt_aperture[idx];
-			if (pte & _PAGE_PRESENT)
+			if (pte & I915_PAGE_PRESENT)
 				write_pte64(vgpu->gvt->gt->ggtt, offset + idx, pte);
 		}
 
@@ -2904,7 +2904,7 @@ void intel_gvt_restore_ggtt(struct intel_gvt *gvt)
 		offset = vgpu_hidden_gmadr_base(vgpu) >> PAGE_SHIFT;
 		for (idx = 0; idx < num_hi; idx++) {
 			pte = mm->ggtt_mm.host_ggtt_hidden[idx];
-			if (pte & _PAGE_PRESENT)
+			if (pte & I915_PAGE_PRESENT)
 				write_pte64(vgpu->gvt->gt->ggtt, offset + idx, pte);
 		}
 	}
-- 
2.25.1

Re: [Intel-gfx] [PATCH 0/1] Introduce new i915 macros for checking PTEs

[Jani Nikula]

On Mon, 08 Nov 2021, Michael Cheng <michael.cheng@outlook.iglb.intel.com> wrote:
> From: Michael Cheng <michael.cheng@intel.com>

Sender is Michael Cheng <michael.cheng@outlook.iglb.intel.com>, please
fix your git config.

BR,
Jani.


>
> This series is to introduce new macros generic to i915 for checking 0 and 1 bits,
> instead on relying on whats defined by the mmu, since it could be different
> or non-exisitent between different platforms.
>
> Michael Cheng (1):
>   drm/i915: Introduce new macros for i915 PTE
>
>  drivers/gpu/drm/i915/gt/gen8_ppgtt.c |  6 +++---
>  drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 +-
>  drivers/gpu/drm/i915/gt/intel_gtt.h  |  3 +++
>  drivers/gpu/drm/i915/gvt/gtt.c       | 12 ++++++------
>  4 files changed, 13 insertions(+), 10 deletions(-)

-- 
Jani Nikula, Intel Open Source Graphics Center

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce new i915 macros for checking PTEs (rev2)

[Patchwork]

== Series Details ==

Series: Introduce new i915 macros for checking PTEs (rev2)
URL   : https://patchwork.freedesktop.org/series/96679/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
eb43f0f4da80 drm/i915: Introduce new macros for i915 PTE
-:13: WARNING:TYPO_SPELLING: 'occurances' may be misspelled - perhaps 'occurrences'?
#13: 
replace all occurances of _PAGE_RW and _PAGE_PRESENT within i915.
            ^^^^^^^^^^

total: 0 errors, 1 warnings, 0 checks, 81 lines checked

Re: [Intel-gfx] [PATCH 0/1] Introduce new i915 macros for checking PTEs

[Slade Watkins]

Jani, all,

On Mon, Nov 8, 2021 at 12:55 PM Jani Nikula <jani.nikula@intel.com> wrote:
>
> On Mon, 08 Nov 2021, Michael Cheng <michael.cheng@outlook.iglb.intel.com> wrote:
> > From: Michael Cheng <michael.cheng@intel.com>
>
> Sender is Michael Cheng <michael.cheng@outlook.iglb.intel.com>, please
> fix your git config.
>

I am unsure how this even happened in the first place, because
outlook.iglb.intel.com doesn't even have any email related records
(MX/SPF/DKIM), so messages aren't even being received anyway. I'm
surprised it sent from there without being marked as spam, honestly.

That said...

> From: Michael Cheng <michael.cheng@intel.com>
Pretty sure Michael's email here is correct because of that. Perhaps
they could confirm one way or another?

             -slade

[Intel-gfx] ✗ Fi.CI.BAT: failure for Introduce new i915 macros for checking PTEs (rev2)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 6416 bytes --]

== Series Details ==

Series: Introduce new i915 macros for checking PTEs (rev2)
URL   : https://patchwork.freedesktop.org/series/96679/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_10854 -> Patchwork_21537
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_21537 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_21537, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/index.html

Participating hosts (40 -> 35)
------------------------------

  Additional (2): fi-icl-u2 fi-pnv-d510 
  Missing    (7): bat-dg1-6 fi-tgl-u2 bat-dg1-5 fi-bsw-cyan bat-adlp-4 fi-ctg-p8600 fi-bdw-samus 

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

  Here are the unknown changes that may have been introduced in Patchwork_21537:

### IGT changes ###

#### Possible regressions ####

  * igt@core_hotunplug@unbind-rebind:
    - fi-pnv-d510:        NOTRUN -> [FAIL][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-pnv-d510/igt@core_hotunplug@unbind-rebind.html

  
New tests
---------

  New tests have been introduced between CI_DRM_10854 and Patchwork_21537:

### New IGT tests (1) ###

  * igt@gem_exec_suspend@basic-s0:
    - Statuses : 1 incomplete(s) 33 pass(s) 1 skip(s)
    - Exec time: [0.0, 20.37] s

  

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

  Here are the changes found in Patchwork_21537 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_cs_nop@fork-gfx0:
    - fi-icl-u2:          NOTRUN -> [SKIP][2] ([fdo#109315]) +17 similar issues
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-icl-u2/igt@amdgpu/amd_cs_nop@fork-gfx0.html

  * igt@amdgpu/amd_cs_nop@sync-fork-compute0:
    - fi-snb-2600:        NOTRUN -> [SKIP][3] ([fdo#109271]) +17 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-snb-2600/igt@amdgpu/amd_cs_nop@sync-fork-compute0.html

  * igt@gem_huc_copy@huc-copy:
    - fi-icl-u2:          NOTRUN -> [SKIP][4] ([i915#2190])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-icl-u2/igt@gem_huc_copy@huc-copy.html

  * igt@i915_pm_rpm@module-reload:
    - fi-kbl-soraka:      [PASS][5] -> [DMESG-WARN][6] ([i915#1982])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10854/fi-kbl-soraka/igt@i915_pm_rpm@module-reload.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-kbl-soraka/igt@i915_pm_rpm@module-reload.html

  * igt@kms_chamelium@hdmi-hpd-fast:
    - fi-icl-u2:          NOTRUN -> [SKIP][7] ([fdo#111827]) +8 similar issues
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-icl-u2/igt@kms_chamelium@hdmi-hpd-fast.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - fi-icl-u2:          NOTRUN -> [SKIP][8] ([fdo#109278]) +2 similar issues
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-icl-u2/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_force_connector_basic@force-load-detect:
    - fi-icl-u2:          NOTRUN -> [SKIP][9] ([fdo#109285])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-icl-u2/igt@kms_force_connector_basic@force-load-detect.html

  * igt@prime_vgem@basic-userptr:
    - fi-pnv-d510:        NOTRUN -> [SKIP][10] ([fdo#109271]) +53 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-pnv-d510/igt@prime_vgem@basic-userptr.html
    - fi-icl-u2:          NOTRUN -> [SKIP][11] ([i915#3301])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-icl-u2/igt@prime_vgem@basic-userptr.html

  
#### Possible fixes ####

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - fi-skl-6600u:       [FAIL][12] ([i915#3239]) -> [PASS][13]
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10854/fi-skl-6600u/igt@i915_pm_rpm@basic-pci-d3-state.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-skl-6600u/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@i915_selftest@live@hangcheck:
    - fi-snb-2600:        [INCOMPLETE][14] ([i915#3921]) -> [PASS][15]
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10854/fi-snb-2600/igt@i915_selftest@live@hangcheck.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-snb-2600/igt@i915_selftest@live@hangcheck.html

  * igt@kms_frontbuffer_tracking@basic:
    - {fi-hsw-gt1}:       [DMESG-WARN][16] ([i915#4290]) -> [PASS][17]
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10854/fi-hsw-gt1/igt@kms_frontbuffer_tracking@basic.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/fi-hsw-gt1/igt@kms_frontbuffer_tracking@basic.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
  [fdo#109278]: https://bugs.freedesktop.org/show_bug.cgi?id=109278
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109315]: https://bugs.freedesktop.org/show_bug.cgi?id=109315
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#3239]: https://gitlab.freedesktop.org/drm/intel/issues/3239
  [i915#3301]: https://gitlab.freedesktop.org/drm/intel/issues/3301
  [i915#3921]: https://gitlab.freedesktop.org/drm/intel/issues/3921
  [i915#4290]: https://gitlab.freedesktop.org/drm/intel/issues/4290


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

  * Linux: CI_DRM_10854 -> Patchwork_21537

  CI-20190529: 20190529
  CI_DRM_10854: 895fb34d3265137c84fe3e9dd48fb9ad2e00fd36 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6274: 569de51145fba197a8d93b2417348d47507bf485 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_21537: eb43f0f4da80685a813b4480f07753afe16addd6 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

eb43f0f4da80 drm/i915: Introduce new macros for i915 PTE

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21537/index.html

[-- Attachment #2: Type: text/html, Size: 7461 bytes --]

Re: [Intel-gfx] [PATCH 0/1] Introduce new i915 macros for checking PTEs

[Lucas De Marchi]

On Mon, Nov 08, 2021 at 03:21:58PM -0500, Slade Watkins wrote:
>Jani, all,
>
>On Mon, Nov 8, 2021 at 12:55 PM Jani Nikula <jani.nikula@intel.com> wrote:
>>
>> On Mon, 08 Nov 2021, Michael Cheng <michael.cheng@outlook.iglb.intel.com> wrote:
>> > From: Michael Cheng <michael.cheng@intel.com>
>>
>> Sender is Michael Cheng <michael.cheng@outlook.iglb.intel.com>, please
>> fix your git config.
>>
>
>I am unsure how this even happened in the first place, because
>outlook.iglb.intel.com doesn't even have any email related records
>(MX/SPF/DKIM), so messages aren't even being received anyway. I'm
>surprised it sent from there without being marked as spam, honestly.


 From the email headers:

	Received: from mwiznero-mobl2.amr.corp.intel.com (HELO
		mvcheng-desk2.intel.com) ([10.209.22.158])
		by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;
		08 Nov 2021 09:19:27 -0800
	From: Michael Cheng <michael.cheng>@intel.com>

Note the additional ">" in the middle. I think the
outlook.iglb.intel.com part mentioned actually comes from an email client
behavior when you try to reply to such email... In my case mutt
tries to reply to michael.cheng@ldmartin-desk2, in which the second part
is my machine's hostname.

It was a simple misconfiguration in ~/.gitconfig.

Lucas De Marchi

[Intel-gfx] [PATCH 0/1] Introduce new i915 macros for checking PTEs

[Michael Cheng]

This series is to introduce new macros generic to i915 for checking 0 and 1 bits,
instead on relying on whats defined by the mmu, since it could be different
or non-exisitent between different platforms.

Michael Cheng (1):
  drm/i915: Introduce new macros for i915 PTE

 drivers/gpu/drm/i915/gt/gen8_ppgtt.c |  6 +++---
 drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 +-
 drivers/gpu/drm/i915/gt/intel_gtt.h  |  3 +++
 drivers/gpu/drm/i915/gvt/gtt.c       | 12 ++++++------
 4 files changed, 13 insertions(+), 10 deletions(-)

-- 
2.25.1