* [PATCH v8 00/17] DSC MST support for DRM and AMDGPU
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
This set of patches is a continuation of DSC enablement
patches for AMDGPU. This set enables DSC on MST. It also
contains implementation of both encoder and connector
atomic check routines.
These patches have been introduced in multiple
iterations to the mailing list before. These patches were
developed by David Francis as part of his work on DSC.
v2: squashed previously 3 separate atomic check patches,
separate atomic check for dsc connectors, track vcpi and
pbn on connectors.
v3: Moved modeset trigger on affected MST displays to DRM
v4: Fix warnings, use current mode's bpc rather than display's
maximum capable one
v5: Moving branch's bandwidth validation to DRM,
Added function to enable DSC per port in DRM
v6: Compute fair share uses DRM helper for BW validation
v7: Add helper to overwrite PBN divider per slot,
Add helper function to trigger modeset on affected DSC connectors
in DRM
v8: Rebased on top of the MST refactor patches that were on DRM-tip
Some cosmetic and cleanup changes
David Francis (9):
drm/dp_mst: Add PBN calculation for DSC modes
drm/dp_mst: Parse FEC capability on MST ports
drm/dp_mst: Add MST support to DP DPCD R/W functions
drm/dp_mst: Fill branch->num_ports
drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux
drm/amd/display: Initialize DSC PPS variables to 0
drm/amd/display: Validate DSC caps on MST endpoints
drm/amd/display: Write DSC enable to MST DPCD
drm/amd/display: MST DSC compute fair share
Mikita Lipski (8):
drm/dp_mst: Add new quirk for Synaptics MST hubs
drm/dp_mst: Manually overwrite PBN divider for calculating timeslots
drm/dp_mst: Add DSC enablement helpers to DRM
drm/dp_mst: Add branch bandwidth validation to MST atomic check
drm/amd/display: Add PBN per slot calculation for DSC
drm/amd/display: Recalculate VCPI slots for new DSC connectors
drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
drm/amd/display: Trigger modesets on MST DSC connectors
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 117 ++++-
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 1 +
.../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 19 +-
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 399 +++++++++++++++++-
.../display/amdgpu_dm/amdgpu_dm_mst_types.h | 5 +
.../drm/amd/display/dc/core/dc_link_hwss.c | 3 +
.../gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c | 3 +
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 7 +-
.../drm/amd/display/dc/dcn20/dcn20_resource.h | 1 +
drivers/gpu/drm/drm_dp_aux_dev.c | 12 +-
drivers/gpu/drm/drm_dp_helper.c | 32 +-
drivers/gpu/drm/drm_dp_mst_topology.c | 395 ++++++++++++++++-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 5 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 5 +-
drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
include/drm/drm_dp_helper.h | 7 +
include/drm/drm_dp_mst_helper.h | 19 +-
17 files changed, 988 insertions(+), 44 deletions(-)
--
2.17.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* [PATCH v8 00/17] DSC MST support for DRM and AMDGPU
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
This set of patches is a continuation of DSC enablement
patches for AMDGPU. This set enables DSC on MST. It also
contains implementation of both encoder and connector
atomic check routines.
These patches have been introduced in multiple
iterations to the mailing list before. These patches were
developed by David Francis as part of his work on DSC.
v2: squashed previously 3 separate atomic check patches,
separate atomic check for dsc connectors, track vcpi and
pbn on connectors.
v3: Moved modeset trigger on affected MST displays to DRM
v4: Fix warnings, use current mode's bpc rather than display's
maximum capable one
v5: Moving branch's bandwidth validation to DRM,
Added function to enable DSC per port in DRM
v6: Compute fair share uses DRM helper for BW validation
v7: Add helper to overwrite PBN divider per slot,
Add helper function to trigger modeset on affected DSC connectors
in DRM
v8: Rebased on top of the MST refactor patches that were on DRM-tip
Some cosmetic and cleanup changes
David Francis (9):
drm/dp_mst: Add PBN calculation for DSC modes
drm/dp_mst: Parse FEC capability on MST ports
drm/dp_mst: Add MST support to DP DPCD R/W functions
drm/dp_mst: Fill branch->num_ports
drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux
drm/amd/display: Initialize DSC PPS variables to 0
drm/amd/display: Validate DSC caps on MST endpoints
drm/amd/display: Write DSC enable to MST DPCD
drm/amd/display: MST DSC compute fair share
Mikita Lipski (8):
drm/dp_mst: Add new quirk for Synaptics MST hubs
drm/dp_mst: Manually overwrite PBN divider for calculating timeslots
drm/dp_mst: Add DSC enablement helpers to DRM
drm/dp_mst: Add branch bandwidth validation to MST atomic check
drm/amd/display: Add PBN per slot calculation for DSC
drm/amd/display: Recalculate VCPI slots for new DSC connectors
drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
drm/amd/display: Trigger modesets on MST DSC connectors
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 117 ++++-
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 1 +
.../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 19 +-
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 399 +++++++++++++++++-
.../display/amdgpu_dm/amdgpu_dm_mst_types.h | 5 +
.../drm/amd/display/dc/core/dc_link_hwss.c | 3 +
.../gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c | 3 +
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 7 +-
.../drm/amd/display/dc/dcn20/dcn20_resource.h | 1 +
drivers/gpu/drm/drm_dp_aux_dev.c | 12 +-
drivers/gpu/drm/drm_dp_helper.c | 32 +-
drivers/gpu/drm/drm_dp_mst_topology.c | 395 ++++++++++++++++-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 5 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 5 +-
drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
include/drm/drm_dp_helper.h | 7 +
include/drm/drm_dp_mst_helper.h | 19 +-
17 files changed, 988 insertions(+), 44 deletions(-)
--
2.17.1
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
With DSC, bpp can be fractional in multiples of 1/16.
Change drm_dp_calc_pbn_mode to reflect this, adding a new
parameter bool dsc. When this parameter is true, treat the
bpp parameter as having units not of bits per pixel, but
1/16 of a bit per pixel
v2: Don't add separate function for this
v3: Keep the calculation in a single equation
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
drivers/gpu/drm/drm_dp_mst_topology.c | 38 ++++++++++++++++++-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +-
drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
include/drm/drm_dp_mst_helper.h | 3 +-
6 files changed, 43 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 455c51c38720..9fc03fc1017d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4967,7 +4967,7 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
is_y420);
bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
clock = adjusted_mode->clock;
- dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp);
+ dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp, false);
}
dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state,
mst_mgr,
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index ae5809a1f19a..261e2c1828c6 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4342,10 +4342,11 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
* drm_dp_calc_pbn_mode() - Calculate the PBN for a mode.
* @clock: dot clock for the mode
* @bpp: bpp for the mode.
+ * @dsc: DSC mode. If true, bpp has units of 1/16 of a bit per pixel
*
* This uses the formula in the spec to calculate the PBN value for a mode.
*/
-int drm_dp_calc_pbn_mode(int clock, int bpp)
+int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc)
{
/*
* margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
@@ -4356,12 +4357,47 @@ int drm_dp_calc_pbn_mode(int clock, int bpp)
* peak_kbps *= (1006/1000)
* peak_kbps *= (64/54)
* peak_kbps *= 8 convert to bytes
+ *
+ * If the bpp is in units of 1/16, further divide by 16. Put this
+ * factor in the numerator rather than the denominator to avoid
+ * integer overflow
*/
+
+ if (dsc)
+ return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006 / 16),
+ 8 * 54 * 1000 * 1000);
+
return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006),
8 * 54 * 1000 * 1000);
+
}
EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
+static int test_calc_pbn_mode(void)
+{
+ int ret;
+ ret = drm_dp_calc_pbn_mode(154000, 30, false);
+ if (ret != 689) {
+ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+ 154000, 30, 689, ret);
+ return -EINVAL;
+ }
+ ret = drm_dp_calc_pbn_mode(234000, 30, false);
+ if (ret != 1047) {
+ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+ 234000, 30, 1047, ret);
+ return -EINVAL;
+ }
+ ret = drm_dp_calc_pbn_mode(297000, 24, false);
+ if (ret != 1063) {
+ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+ 297000, 24, 1063, ret);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+
/* we want to kick the TX after we've ack the up/down IRQs. */
static void drm_dp_mst_kick_tx(struct drm_dp_mst_topology_mgr *mgr)
{
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 03d1cba0b696..92be17711287 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
crtc_state->pipe_bpp = bpp;
crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock,
- crtc_state->pipe_bpp);
+ crtc_state->pipe_bpp,
+ false);
slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
port, crtc_state->pbn);
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 549486f1d937..1c9e23d5a6fd 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -782,7 +782,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
const int bpp = connector->display_info.bpc * 3;
const int clock = crtc_state->adjusted_mode.clock;
- asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp);
+ asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp, false);
}
slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index ee28f5b3785e..28eef9282874 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -518,7 +518,7 @@ static bool radeon_mst_mode_fixup(struct drm_encoder *encoder,
mst_enc = radeon_encoder->enc_priv;
- mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
+ mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp, false);
mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc->connector->devices;
DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index d5fc90b30487..68656913cfe5 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -719,8 +719,7 @@ bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
-int drm_dp_calc_pbn_mode(int clock, int bpp);
-
+int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port, int pbn, int slots);
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
With DSC, bpp can be fractional in multiples of 1/16.
Change drm_dp_calc_pbn_mode to reflect this, adding a new
parameter bool dsc. When this parameter is true, treat the
bpp parameter as having units not of bits per pixel, but
1/16 of a bit per pixel
v2: Don't add separate function for this
v3: Keep the calculation in a single equation
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
drivers/gpu/drm/drm_dp_mst_topology.c | 38 ++++++++++++++++++-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +-
drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
include/drm/drm_dp_mst_helper.h | 3 +-
6 files changed, 43 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 455c51c38720..9fc03fc1017d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4967,7 +4967,7 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
is_y420);
bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
clock = adjusted_mode->clock;
- dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp);
+ dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp, false);
}
dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state,
mst_mgr,
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index ae5809a1f19a..261e2c1828c6 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4342,10 +4342,11 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
* drm_dp_calc_pbn_mode() - Calculate the PBN for a mode.
* @clock: dot clock for the mode
* @bpp: bpp for the mode.
+ * @dsc: DSC mode. If true, bpp has units of 1/16 of a bit per pixel
*
* This uses the formula in the spec to calculate the PBN value for a mode.
*/
-int drm_dp_calc_pbn_mode(int clock, int bpp)
+int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc)
{
/*
* margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
@@ -4356,12 +4357,47 @@ int drm_dp_calc_pbn_mode(int clock, int bpp)
* peak_kbps *= (1006/1000)
* peak_kbps *= (64/54)
* peak_kbps *= 8 convert to bytes
+ *
+ * If the bpp is in units of 1/16, further divide by 16. Put this
+ * factor in the numerator rather than the denominator to avoid
+ * integer overflow
*/
+
+ if (dsc)
+ return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006 / 16),
+ 8 * 54 * 1000 * 1000);
+
return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006),
8 * 54 * 1000 * 1000);
+
}
EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
+static int test_calc_pbn_mode(void)
+{
+ int ret;
+ ret = drm_dp_calc_pbn_mode(154000, 30, false);
+ if (ret != 689) {
+ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+ 154000, 30, 689, ret);
+ return -EINVAL;
+ }
+ ret = drm_dp_calc_pbn_mode(234000, 30, false);
+ if (ret != 1047) {
+ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+ 234000, 30, 1047, ret);
+ return -EINVAL;
+ }
+ ret = drm_dp_calc_pbn_mode(297000, 24, false);
+ if (ret != 1063) {
+ DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+ 297000, 24, 1063, ret);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+
/* we want to kick the TX after we've ack the up/down IRQs. */
static void drm_dp_mst_kick_tx(struct drm_dp_mst_topology_mgr *mgr)
{
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 03d1cba0b696..92be17711287 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
crtc_state->pipe_bpp = bpp;
crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock,
- crtc_state->pipe_bpp);
+ crtc_state->pipe_bpp,
+ false);
slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
port, crtc_state->pbn);
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 549486f1d937..1c9e23d5a6fd 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -782,7 +782,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
const int bpp = connector->display_info.bpc * 3;
const int clock = crtc_state->adjusted_mode.clock;
- asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp);
+ asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp, false);
}
slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index ee28f5b3785e..28eef9282874 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -518,7 +518,7 @@ static bool radeon_mst_mode_fixup(struct drm_encoder *encoder,
mst_enc = radeon_encoder->enc_priv;
- mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
+ mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp, false);
mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc->connector->devices;
DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index d5fc90b30487..68656913cfe5 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -719,8 +719,7 @@ bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
-int drm_dp_calc_pbn_mode(int clock, int bpp);
-
+int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port, int pbn, int slots);
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
As of DP1.4, ENUM_PATH_RESOURCES returns a bit indicating
if FEC can be supported up to that point in the MST network.
The bit is the first byte of the ENUM_PATH_RESOURCES ack reply,
bottom-most bit (refer to section 2.11.9.4 of DP standard,
v1.4)
That value is needed for FEC and DSC support
Store it on drm_dp_mst_port
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 2 ++
include/drm/drm_dp_mst_helper.h | 3 +++
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 261e2c1828c6..06aae9b52e8a 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -846,6 +846,7 @@ static bool drm_dp_sideband_parse_enum_path_resources_ack(struct drm_dp_sideband
{
int idx = 1;
repmsg->u.path_resources.port_number = (raw->msg[idx] >> 4) & 0xf;
+ repmsg->u.path_resources.fec_capable = raw->msg[idx] & 0x1;
idx++;
if (idx > raw->curlen)
goto fail_len;
@@ -2894,6 +2895,7 @@ drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
path_res->avail_payload_bw_number);
port->available_pbn =
path_res->avail_payload_bw_number;
+ port->fec_capable = path_res->fec_capable;
}
}
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 68656913cfe5..0cada01e8139 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -156,6 +156,8 @@ struct drm_dp_mst_port {
* audio-capable.
*/
bool has_audio;
+
+ bool fec_capable;
};
/**
@@ -383,6 +385,7 @@ struct drm_dp_port_number_req {
struct drm_dp_enum_path_resources_ack_reply {
u8 port_number;
+ bool fec_capable;
u16 full_payload_bw_number;
u16 avail_payload_bw_number;
};
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
As of DP1.4, ENUM_PATH_RESOURCES returns a bit indicating
if FEC can be supported up to that point in the MST network.
The bit is the first byte of the ENUM_PATH_RESOURCES ack reply,
bottom-most bit (refer to section 2.11.9.4 of DP standard,
v1.4)
That value is needed for FEC and DSC support
Store it on drm_dp_mst_port
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 2 ++
include/drm/drm_dp_mst_helper.h | 3 +++
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 261e2c1828c6..06aae9b52e8a 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -846,6 +846,7 @@ static bool drm_dp_sideband_parse_enum_path_resources_ack(struct drm_dp_sideband
{
int idx = 1;
repmsg->u.path_resources.port_number = (raw->msg[idx] >> 4) & 0xf;
+ repmsg->u.path_resources.fec_capable = raw->msg[idx] & 0x1;
idx++;
if (idx > raw->curlen)
goto fail_len;
@@ -2894,6 +2895,7 @@ drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
path_res->avail_payload_bw_number);
port->available_pbn =
path_res->avail_payload_bw_number;
+ port->fec_capable = path_res->fec_capable;
}
}
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 68656913cfe5..0cada01e8139 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -156,6 +156,8 @@ struct drm_dp_mst_port {
* audio-capable.
*/
bool has_audio;
+
+ bool fec_capable;
};
/**
@@ -383,6 +385,7 @@ struct drm_dp_port_number_req {
struct drm_dp_enum_path_resources_ack_reply {
u8 port_number;
+ bool fec_capable;
u16 full_payload_bw_number;
u16 avail_payload_bw_number;
};
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 03/17] drm/dp_mst: Add MST support to DP DPCD R/W functions
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
Instead of having drm_dp_dpcd_read/write and
drm_dp_mst_dpcd_read/write as entry points into the
aux code, have drm_dp_dpcd_read/write handle both.
This means that DRM drivers can make MST DPCD read/writes.
v2: Fix spacing
v3: Dump dpcd access on MST read/writes
v4: Fix calling wrong function on DPCD write
v5: delete deprecated include of drmP.h
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_aux_dev.c | 12 ++----------
drivers/gpu/drm/drm_dp_helper.c | 30 ++++++++++++++++++++----------
2 files changed, 22 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c
index 0cfb386754c3..2510717d5a08 100644
--- a/drivers/gpu/drm/drm_dp_aux_dev.c
+++ b/drivers/gpu/drm/drm_dp_aux_dev.c
@@ -163,11 +163,7 @@ static ssize_t auxdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
break;
}
- if (aux_dev->aux->is_remote)
- res = drm_dp_mst_dpcd_read(aux_dev->aux, pos, buf,
- todo);
- else
- res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);
+ res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);
if (res <= 0)
break;
@@ -215,11 +211,7 @@ static ssize_t auxdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
break;
}
- if (aux_dev->aux->is_remote)
- res = drm_dp_mst_dpcd_write(aux_dev->aux, pos, buf,
- todo);
- else
- res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo);
+ res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo);
if (res <= 0)
break;
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 2c7870aef469..2faef8bd911f 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -32,6 +32,7 @@
#include <drm/drm_dp_helper.h>
#include <drm/drm_print.h>
#include <drm/drm_vblank.h>
+#include <drm/drm_dp_mst_helper.h>
#include "drm_crtc_helper_internal.h"
@@ -266,7 +267,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
/**
* drm_dp_dpcd_read() - read a series of bytes from the DPCD
- * @aux: DisplayPort AUX channel
+ * @aux: DisplayPort AUX channel (SST or MST)
* @offset: address of the (first) register to read
* @buffer: buffer to store the register values
* @size: number of bytes in @buffer
@@ -295,13 +296,18 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
* We just have to do it before any DPCD access and hope that the
* monitor doesn't power down exactly after the throw away read.
*/
- ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, DP_DPCD_REV, buffer,
- 1);
- if (ret != 1)
- goto out;
+ if (!aux->is_remote) {
+ ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, DP_DPCD_REV,
+ buffer, 1);
+ if (ret != 1)
+ goto out;
+ }
- ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, offset, buffer,
- size);
+ if (aux->is_remote)
+ ret = drm_dp_mst_dpcd_read(aux, offset, buffer, size);
+ else
+ ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, offset,
+ buffer, size);
out:
drm_dp_dump_access(aux, DP_AUX_NATIVE_READ, offset, buffer, ret);
@@ -311,7 +317,7 @@ EXPORT_SYMBOL(drm_dp_dpcd_read);
/**
* drm_dp_dpcd_write() - write a series of bytes to the DPCD
- * @aux: DisplayPort AUX channel
+ * @aux: DisplayPort AUX channel (SST or MST)
* @offset: address of the (first) register to write
* @buffer: buffer containing the values to write
* @size: number of bytes in @buffer
@@ -328,8 +334,12 @@ ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
{
int ret;
- ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_WRITE, offset, buffer,
- size);
+ if (aux->is_remote)
+ ret = drm_dp_mst_dpcd_write(aux, offset, buffer, size);
+ else
+ ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_WRITE, offset,
+ buffer, size);
+
drm_dp_dump_access(aux, DP_AUX_NATIVE_WRITE, offset, buffer, ret);
return ret;
}
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 03/17] drm/dp_mst: Add MST support to DP DPCD R/W functions
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
Instead of having drm_dp_dpcd_read/write and
drm_dp_mst_dpcd_read/write as entry points into the
aux code, have drm_dp_dpcd_read/write handle both.
This means that DRM drivers can make MST DPCD read/writes.
v2: Fix spacing
v3: Dump dpcd access on MST read/writes
v4: Fix calling wrong function on DPCD write
v5: delete deprecated include of drmP.h
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_aux_dev.c | 12 ++----------
drivers/gpu/drm/drm_dp_helper.c | 30 ++++++++++++++++++++----------
2 files changed, 22 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c
index 0cfb386754c3..2510717d5a08 100644
--- a/drivers/gpu/drm/drm_dp_aux_dev.c
+++ b/drivers/gpu/drm/drm_dp_aux_dev.c
@@ -163,11 +163,7 @@ static ssize_t auxdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
break;
}
- if (aux_dev->aux->is_remote)
- res = drm_dp_mst_dpcd_read(aux_dev->aux, pos, buf,
- todo);
- else
- res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);
+ res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);
if (res <= 0)
break;
@@ -215,11 +211,7 @@ static ssize_t auxdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
break;
}
- if (aux_dev->aux->is_remote)
- res = drm_dp_mst_dpcd_write(aux_dev->aux, pos, buf,
- todo);
- else
- res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo);
+ res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo);
if (res <= 0)
break;
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 2c7870aef469..2faef8bd911f 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -32,6 +32,7 @@
#include <drm/drm_dp_helper.h>
#include <drm/drm_print.h>
#include <drm/drm_vblank.h>
+#include <drm/drm_dp_mst_helper.h>
#include "drm_crtc_helper_internal.h"
@@ -266,7 +267,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
/**
* drm_dp_dpcd_read() - read a series of bytes from the DPCD
- * @aux: DisplayPort AUX channel
+ * @aux: DisplayPort AUX channel (SST or MST)
* @offset: address of the (first) register to read
* @buffer: buffer to store the register values
* @size: number of bytes in @buffer
@@ -295,13 +296,18 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
* We just have to do it before any DPCD access and hope that the
* monitor doesn't power down exactly after the throw away read.
*/
- ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, DP_DPCD_REV, buffer,
- 1);
- if (ret != 1)
- goto out;
+ if (!aux->is_remote) {
+ ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, DP_DPCD_REV,
+ buffer, 1);
+ if (ret != 1)
+ goto out;
+ }
- ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, offset, buffer,
- size);
+ if (aux->is_remote)
+ ret = drm_dp_mst_dpcd_read(aux, offset, buffer, size);
+ else
+ ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, offset,
+ buffer, size);
out:
drm_dp_dump_access(aux, DP_AUX_NATIVE_READ, offset, buffer, ret);
@@ -311,7 +317,7 @@ EXPORT_SYMBOL(drm_dp_dpcd_read);
/**
* drm_dp_dpcd_write() - write a series of bytes to the DPCD
- * @aux: DisplayPort AUX channel
+ * @aux: DisplayPort AUX channel (SST or MST)
* @offset: address of the (first) register to write
* @buffer: buffer containing the values to write
* @size: number of bytes in @buffer
@@ -328,8 +334,12 @@ ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
{
int ret;
- ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_WRITE, offset, buffer,
- size);
+ if (aux->is_remote)
+ ret = drm_dp_mst_dpcd_write(aux, offset, buffer, size);
+ else
+ ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_WRITE, offset,
+ buffer, size);
+
drm_dp_dump_access(aux, DP_AUX_NATIVE_WRITE, offset, buffer, ret);
return ret;
}
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 04/17] drm/dp_mst: Fill branch->num_ports
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
This field on drm_dp_mst_branch was never filled
It is initialized to zero when the port is kzallocced.
When a port is added to the list, increment num_ports,
and when a port is removed from the list, decrement num_ports.
v2: remember to decrement on port removal
v3: don't explicitly init to 0
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 06aae9b52e8a..d74b767d0fe1 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2129,6 +2129,7 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb,
build_mst_prop_path(mstb, port->port_num, proppath, sizeof(proppath));
port->connector = mgr->cbs->add_connector(mgr, port, proppath);
if (!port->connector) {
+ mstb->num_ports--;
ret = -ENOMEM;
goto error;
}
@@ -2256,6 +2257,7 @@ drm_dp_mst_handle_link_address_port(struct drm_dp_mst_branch *mstb,
mutex_lock(&mgr->lock);
drm_dp_mst_topology_get_port(port);
list_add(&port->next, &mstb->ports);
+ mstb->num_ports++;
mutex_unlock(&mgr->lock);
}
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 04/17] drm/dp_mst: Fill branch->num_ports
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
This field on drm_dp_mst_branch was never filled
It is initialized to zero when the port is kzallocced.
When a port is added to the list, increment num_ports,
and when a port is removed from the list, decrement num_ports.
v2: remember to decrement on port removal
v3: don't explicitly init to 0
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 06aae9b52e8a..d74b767d0fe1 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2129,6 +2129,7 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb,
build_mst_prop_path(mstb, port->port_num, proppath, sizeof(proppath));
port->connector = mgr->cbs->add_connector(mgr, port, proppath);
if (!port->connector) {
+ mstb->num_ports--;
ret = -ENOMEM;
goto error;
}
@@ -2256,6 +2257,7 @@ drm_dp_mst_handle_link_address_port(struct drm_dp_mst_branch *mstb,
mutex_lock(&mgr->lock);
drm_dp_mst_topology_get_port(port);
list_add(&port->next, &mstb->ports);
+ mstb->num_ports++;
mutex_unlock(&mgr->lock);
}
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 05/17] drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
Add drm_dp_mst_dsc_aux_for_port. To enable DSC, the DSC_ENABLED
register might have to be written on the leaf port's DPCD,
its parent's DPCD, or the MST manager's DPCD. This function
finds the correct aux for the job.
As part of this, add drm_dp_mst_is_virtual_dpcd. Virtual DPCD
is a DP feature new in DP v1.4, which exposes certain DPCD
registers on virtual ports.
v2: Remember to unlock mutex on all paths
v3: Refactor to match coding style and increase brevity
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 127 ++++++++++++++++++++++++++
include/drm/drm_dp_mst_helper.h | 2 +
2 files changed, 129 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index d74b767d0fe1..9df02090aa9f 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -5029,3 +5029,130 @@ static void drm_dp_mst_unregister_i2c_bus(struct drm_dp_aux *aux)
{
i2c_del_adapter(&aux->ddc);
}
+
+/**
+ * drm_dp_mst_is_virtual_dpcd() - Is the given port a virtual DP Peer Device
+ * @port: The port to check
+ *
+ * A single physical MST hub object can be represented in the topology
+ * by multiple branches, with virtual ports between those branches.
+ *
+ * As of DP1.4, An MST hub with internal (virtual) ports must expose
+ * certain DPCD registers over those ports. See sections 2.6.1.1.1
+ * and 2.6.1.1.2 of Display Port specification v1.4 for details.
+ *
+ * May acquire mgr->lock
+ *
+ * Returns:
+ * true if the port is a virtual DP peer device, false otherwise
+ */
+static bool drm_dp_mst_is_virtual_dpcd(struct drm_dp_mst_port *port)
+{
+ struct drm_dp_mst_port *downstream_port;
+
+ if (!port || port->dpcd_rev < DP_DPCD_REV_14)
+ return false;
+
+ /* Virtual DP Sink (Internal Display Panel) */
+ if (port->port_num >= 8)
+ return true;
+
+ /* DP-to-HDMI Protocol Converter */
+ if (port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV &&
+ !port->mcs &&
+ port->ldps)
+ return true;
+
+ /* DP-to-DP */
+ mutex_lock(&port->mgr->lock);
+ if (port->pdt == DP_PEER_DEVICE_MST_BRANCHING &&
+ port->mstb &&
+ port->mstb->num_ports == 2) {
+ list_for_each_entry(downstream_port, &port->mstb->ports, next) {
+ if (downstream_port->pdt == DP_PEER_DEVICE_SST_SINK &&
+ !downstream_port->input) {
+ mutex_unlock(&port->mgr->lock);
+ return true;
+ }
+ }
+ }
+ mutex_unlock(&port->mgr->lock);
+
+ return false;
+}
+
+/**
+ * drm_dp_mst_dsc_aux_for_port() - Find the correct aux for DSC
+ * @port: The port to check. A leaf of the MST tree with an attached display.
+ *
+ * Depending on the situation, DSC may be enabled via the endpoint aux,
+ * the immediately upstream aux, or the connector's physical aux.
+ *
+ * This is both the correct aux to read DSC_CAPABILITY and the
+ * correct aux to write DSC_ENABLED.
+ *
+ * This operation can be expensive (up to four aux reads), so
+ * the caller should cache the return.
+ *
+ * Returns:
+ * NULL if DSC cannot be enabled on this port, otherwise the aux device
+ */
+struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
+{
+ struct drm_dp_mst_port *immediate_upstream_port;
+ struct drm_dp_mst_port *fec_port;
+
+ if (!port)
+ return NULL;
+
+ if (port->parent)
+ immediate_upstream_port = port->parent->port_parent;
+ else
+ immediate_upstream_port = NULL;
+
+ fec_port = immediate_upstream_port;
+ while (fec_port) {
+ /*
+ * Each physical link (i.e. not a virtual port) between the
+ * output and the primary device must support FEC
+ */
+ if (!drm_dp_mst_is_virtual_dpcd(fec_port) &&
+ !fec_port->fec_capable)
+ return NULL;
+
+ fec_port = fec_port->parent->port_parent;
+ }
+
+ /* DP-to-DP peer device */
+ if (drm_dp_mst_is_virtual_dpcd(immediate_upstream_port)) {
+ u8 upstream_dsc;
+ u8 endpoint_dsc;
+ u8 endpoint_fec;
+
+ if (drm_dp_dpcd_read(&port->aux,
+ DP_DSC_SUPPORT, &endpoint_dsc, 1) < 0)
+ return NULL;
+ if (drm_dp_dpcd_read(&port->aux,
+ DP_FEC_CAPABILITY, &endpoint_fec, 1) < 0)
+ return NULL;
+ if (drm_dp_dpcd_read(&immediate_upstream_port->aux,
+ DP_DSC_SUPPORT, &upstream_dsc, 1) < 0)
+ return NULL;
+
+ /* Enpoint decompression with DP-to-DP peer device */
+ if ((endpoint_dsc & DP_DSC_DECOMPRESSION_IS_SUPPORTED) &&
+ (endpoint_fec & DP_FEC_CAPABLE) &&
+ (upstream_dsc & 0x2) /* DSC passthrough */)
+ return &port->aux;
+
+ /* Virtual DPCD decompression with DP-to-DP peer device */
+ return &immediate_upstream_port->aux;
+ }
+
+ /* Virtual DPCD decompression with DP-to-HDMI or Virtual DP Sink */
+ if (drm_dp_mst_is_virtual_dpcd(port))
+ return &port->aux;
+
+ return NULL;
+}
+EXPORT_SYMBOL(drm_dp_mst_dsc_aux_for_port);
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 0cada01e8139..32e60b9d7098 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -783,6 +783,8 @@ int __must_check drm_dp_mst_atomic_check(struct drm_atomic_state *state);
void drm_dp_mst_get_port_malloc(struct drm_dp_mst_port *port);
void drm_dp_mst_put_port_malloc(struct drm_dp_mst_port *port);
+struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port);
+
extern const struct drm_private_state_funcs drm_dp_mst_topology_state_funcs;
/**
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 05/17] drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
Add drm_dp_mst_dsc_aux_for_port. To enable DSC, the DSC_ENABLED
register might have to be written on the leaf port's DPCD,
its parent's DPCD, or the MST manager's DPCD. This function
finds the correct aux for the job.
As part of this, add drm_dp_mst_is_virtual_dpcd. Virtual DPCD
is a DP feature new in DP v1.4, which exposes certain DPCD
registers on virtual ports.
v2: Remember to unlock mutex on all paths
v3: Refactor to match coding style and increase brevity
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 127 ++++++++++++++++++++++++++
include/drm/drm_dp_mst_helper.h | 2 +
2 files changed, 129 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index d74b767d0fe1..9df02090aa9f 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -5029,3 +5029,130 @@ static void drm_dp_mst_unregister_i2c_bus(struct drm_dp_aux *aux)
{
i2c_del_adapter(&aux->ddc);
}
+
+/**
+ * drm_dp_mst_is_virtual_dpcd() - Is the given port a virtual DP Peer Device
+ * @port: The port to check
+ *
+ * A single physical MST hub object can be represented in the topology
+ * by multiple branches, with virtual ports between those branches.
+ *
+ * As of DP1.4, An MST hub with internal (virtual) ports must expose
+ * certain DPCD registers over those ports. See sections 2.6.1.1.1
+ * and 2.6.1.1.2 of Display Port specification v1.4 for details.
+ *
+ * May acquire mgr->lock
+ *
+ * Returns:
+ * true if the port is a virtual DP peer device, false otherwise
+ */
+static bool drm_dp_mst_is_virtual_dpcd(struct drm_dp_mst_port *port)
+{
+ struct drm_dp_mst_port *downstream_port;
+
+ if (!port || port->dpcd_rev < DP_DPCD_REV_14)
+ return false;
+
+ /* Virtual DP Sink (Internal Display Panel) */
+ if (port->port_num >= 8)
+ return true;
+
+ /* DP-to-HDMI Protocol Converter */
+ if (port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV &&
+ !port->mcs &&
+ port->ldps)
+ return true;
+
+ /* DP-to-DP */
+ mutex_lock(&port->mgr->lock);
+ if (port->pdt == DP_PEER_DEVICE_MST_BRANCHING &&
+ port->mstb &&
+ port->mstb->num_ports == 2) {
+ list_for_each_entry(downstream_port, &port->mstb->ports, next) {
+ if (downstream_port->pdt == DP_PEER_DEVICE_SST_SINK &&
+ !downstream_port->input) {
+ mutex_unlock(&port->mgr->lock);
+ return true;
+ }
+ }
+ }
+ mutex_unlock(&port->mgr->lock);
+
+ return false;
+}
+
+/**
+ * drm_dp_mst_dsc_aux_for_port() - Find the correct aux for DSC
+ * @port: The port to check. A leaf of the MST tree with an attached display.
+ *
+ * Depending on the situation, DSC may be enabled via the endpoint aux,
+ * the immediately upstream aux, or the connector's physical aux.
+ *
+ * This is both the correct aux to read DSC_CAPABILITY and the
+ * correct aux to write DSC_ENABLED.
+ *
+ * This operation can be expensive (up to four aux reads), so
+ * the caller should cache the return.
+ *
+ * Returns:
+ * NULL if DSC cannot be enabled on this port, otherwise the aux device
+ */
+struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
+{
+ struct drm_dp_mst_port *immediate_upstream_port;
+ struct drm_dp_mst_port *fec_port;
+
+ if (!port)
+ return NULL;
+
+ if (port->parent)
+ immediate_upstream_port = port->parent->port_parent;
+ else
+ immediate_upstream_port = NULL;
+
+ fec_port = immediate_upstream_port;
+ while (fec_port) {
+ /*
+ * Each physical link (i.e. not a virtual port) between the
+ * output and the primary device must support FEC
+ */
+ if (!drm_dp_mst_is_virtual_dpcd(fec_port) &&
+ !fec_port->fec_capable)
+ return NULL;
+
+ fec_port = fec_port->parent->port_parent;
+ }
+
+ /* DP-to-DP peer device */
+ if (drm_dp_mst_is_virtual_dpcd(immediate_upstream_port)) {
+ u8 upstream_dsc;
+ u8 endpoint_dsc;
+ u8 endpoint_fec;
+
+ if (drm_dp_dpcd_read(&port->aux,
+ DP_DSC_SUPPORT, &endpoint_dsc, 1) < 0)
+ return NULL;
+ if (drm_dp_dpcd_read(&port->aux,
+ DP_FEC_CAPABILITY, &endpoint_fec, 1) < 0)
+ return NULL;
+ if (drm_dp_dpcd_read(&immediate_upstream_port->aux,
+ DP_DSC_SUPPORT, &upstream_dsc, 1) < 0)
+ return NULL;
+
+ /* Enpoint decompression with DP-to-DP peer device */
+ if ((endpoint_dsc & DP_DSC_DECOMPRESSION_IS_SUPPORTED) &&
+ (endpoint_fec & DP_FEC_CAPABLE) &&
+ (upstream_dsc & 0x2) /* DSC passthrough */)
+ return &port->aux;
+
+ /* Virtual DPCD decompression with DP-to-DP peer device */
+ return &immediate_upstream_port->aux;
+ }
+
+ /* Virtual DPCD decompression with DP-to-HDMI or Virtual DP Sink */
+ if (drm_dp_mst_is_virtual_dpcd(port))
+ return &port->aux;
+
+ return NULL;
+}
+EXPORT_SYMBOL(drm_dp_mst_dsc_aux_for_port);
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 0cada01e8139..32e60b9d7098 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -783,6 +783,8 @@ int __must_check drm_dp_mst_atomic_check(struct drm_atomic_state *state);
void drm_dp_mst_get_port_malloc(struct drm_dp_mst_port *port);
void drm_dp_mst_put_port_malloc(struct drm_dp_mst_port *port);
+struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port);
+
extern const struct drm_private_state_funcs drm_dp_mst_topology_state_funcs;
/**
--
2.17.1
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 06/17] drm/dp_mst: Add new quirk for Synaptics MST hubs
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
Synaptics DP1.4 hubs (BRANCH_ID 0x90CC24) do not
support virtual DPCD registers, but do support DSC.
The DSC caps can be read from the physical aux,
like in SST DSC. These hubs have many different
DEVICE_IDs. Add a new quirk to detect this case.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_helper.c | 2 ++
drivers/gpu/drm/drm_dp_mst_topology.c | 27 +++++++++++++++++++++++++++
include/drm/drm_dp_helper.h | 7 +++++++
3 files changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 2faef8bd911f..374cedc6c2ac 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1165,6 +1165,8 @@ static const struct dpcd_quirk dpcd_quirk_list[] = {
{ OUI(0x00, 0x10, 0xfa), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_NO_PSR) },
/* CH7511 seems to leave SINK_COUNT zeroed */
{ OUI(0x00, 0x00, 0x00), DEVICE_ID('C', 'H', '7', '5', '1', '1'), false, BIT(DP_DPCD_QUIRK_NO_SINK_COUNT) },
+ /* Synaptics DP1.4 MST hubs can support DSC without virtual DPCD */
+ { OUI(0x90, 0xCC, 0x24), DEVICE_ID_ANY, true, BIT(DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) },
};
#undef OUI
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 9df02090aa9f..018921c4ba98 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -5101,6 +5101,7 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
{
struct drm_dp_mst_port *immediate_upstream_port;
struct drm_dp_mst_port *fec_port;
+ struct drm_dp_desc desc = { 0 };
if (!port)
return NULL;
@@ -5153,6 +5154,32 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
if (drm_dp_mst_is_virtual_dpcd(port))
return &port->aux;
+ /*
+ * Synaptics quirk
+ * Applies to ports for which:
+ * - Physical aux has Synaptics OUI
+ * - DPv1.4 or higher
+ * - Port is on primary branch device
+ * - Not a VGA adapter (DP_DWN_STRM_PORT_TYPE_ANALOG)
+ */
+ if (!drm_dp_read_desc(port->mgr->aux, &desc, true))
+ return NULL;
+
+ if (drm_dp_has_quirk(&desc, DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) &&
+ port->mgr->dpcd[DP_DPCD_REV] >= DP_DPCD_REV_14 &&
+ port->parent == port->mgr->mst_primary) {
+ u8 downstreamport;
+
+ if (drm_dp_dpcd_read(&port->aux, DP_DOWNSTREAMPORT_PRESENT,
+ &downstreamport, 1) < 0)
+ return NULL;
+
+ if ((downstreamport & DP_DWN_STRM_PORT_PRESENT) &&
+ ((downstreamport & DP_DWN_STRM_PORT_TYPE_MASK)
+ != DP_DWN_STRM_PORT_TYPE_ANALOG))
+ return port->mgr->aux;
+ }
+
return NULL;
}
EXPORT_SYMBOL(drm_dp_mst_dsc_aux_for_port);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 51ecb5112ef8..e63cd508882b 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1520,6 +1520,13 @@ enum drm_dp_quirk {
* The driver should ignore SINK_COUNT during detection.
*/
DP_DPCD_QUIRK_NO_SINK_COUNT,
+ /**
+ * @DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD:
+ *
+ * The device supports MST DSC despite not supporting Virtual DPCD.
+ * The DSC caps can be read from the physical aux instead.
+ */
+ DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD,
};
/**
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 06/17] drm/dp_mst: Add new quirk for Synaptics MST hubs
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
Synaptics DP1.4 hubs (BRANCH_ID 0x90CC24) do not
support virtual DPCD registers, but do support DSC.
The DSC caps can be read from the physical aux,
like in SST DSC. These hubs have many different
DEVICE_IDs. Add a new quirk to detect this case.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_helper.c | 2 ++
drivers/gpu/drm/drm_dp_mst_topology.c | 27 +++++++++++++++++++++++++++
include/drm/drm_dp_helper.h | 7 +++++++
3 files changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 2faef8bd911f..374cedc6c2ac 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1165,6 +1165,8 @@ static const struct dpcd_quirk dpcd_quirk_list[] = {
{ OUI(0x00, 0x10, 0xfa), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_NO_PSR) },
/* CH7511 seems to leave SINK_COUNT zeroed */
{ OUI(0x00, 0x00, 0x00), DEVICE_ID('C', 'H', '7', '5', '1', '1'), false, BIT(DP_DPCD_QUIRK_NO_SINK_COUNT) },
+ /* Synaptics DP1.4 MST hubs can support DSC without virtual DPCD */
+ { OUI(0x90, 0xCC, 0x24), DEVICE_ID_ANY, true, BIT(DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) },
};
#undef OUI
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 9df02090aa9f..018921c4ba98 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -5101,6 +5101,7 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
{
struct drm_dp_mst_port *immediate_upstream_port;
struct drm_dp_mst_port *fec_port;
+ struct drm_dp_desc desc = { 0 };
if (!port)
return NULL;
@@ -5153,6 +5154,32 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
if (drm_dp_mst_is_virtual_dpcd(port))
return &port->aux;
+ /*
+ * Synaptics quirk
+ * Applies to ports for which:
+ * - Physical aux has Synaptics OUI
+ * - DPv1.4 or higher
+ * - Port is on primary branch device
+ * - Not a VGA adapter (DP_DWN_STRM_PORT_TYPE_ANALOG)
+ */
+ if (!drm_dp_read_desc(port->mgr->aux, &desc, true))
+ return NULL;
+
+ if (drm_dp_has_quirk(&desc, DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) &&
+ port->mgr->dpcd[DP_DPCD_REV] >= DP_DPCD_REV_14 &&
+ port->parent == port->mgr->mst_primary) {
+ u8 downstreamport;
+
+ if (drm_dp_dpcd_read(&port->aux, DP_DOWNSTREAMPORT_PRESENT,
+ &downstreamport, 1) < 0)
+ return NULL;
+
+ if ((downstreamport & DP_DWN_STRM_PORT_PRESENT) &&
+ ((downstreamport & DP_DWN_STRM_PORT_TYPE_MASK)
+ != DP_DWN_STRM_PORT_TYPE_ANALOG))
+ return port->mgr->aux;
+ }
+
return NULL;
}
EXPORT_SYMBOL(drm_dp_mst_dsc_aux_for_port);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 51ecb5112ef8..e63cd508882b 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1520,6 +1520,13 @@ enum drm_dp_quirk {
* The driver should ignore SINK_COUNT during detection.
*/
DP_DPCD_QUIRK_NO_SINK_COUNT,
+ /**
+ * @DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD:
+ *
+ * The device supports MST DSC despite not supporting Virtual DPCD.
+ * The DSC caps can be read from the physical aux instead.
+ */
+ DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD,
};
/**
--
2.17.1
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 07/17] drm/amd/display: Initialize DSC PPS variables to 0
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
For DSC MST, sometimes monitors would break out
in full-screen static. The issue traced back to the
PPS generation code, where these variables were being used
uninitialized and were picking up garbage.
memset to 0 to avoid this
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 3 +++
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index bb1e8e5b5252..a7f3a9ecc626 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -526,6 +526,9 @@ bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable)
struct dsc_config dsc_cfg;
uint8_t dsc_packed_pps[128];
+ memset(&dsc_cfg, 0, sizeof(dsc_cfg));
+ memset(dsc_packed_pps, 0, 128);
+
/* Enable DSC hw block */
dsc_cfg.pic_width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right;
dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
index 0111545dac75..6bdfee20b6a7 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
@@ -206,6 +206,9 @@ static bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const str
struct dsc_reg_values dsc_reg_vals;
struct dsc_optc_config dsc_optc_cfg;
+ memset(&dsc_reg_vals, 0, sizeof(dsc_reg_vals));
+ memset(&dsc_optc_cfg, 0, sizeof(dsc_optc_cfg));
+
DC_LOG_DSC("Getting packed DSC PPS for DSC Config:");
dsc_config_log(dsc, dsc_cfg);
DC_LOG_DSC("DSC Picture Parameter Set (PPS):");
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 07/17] drm/amd/display: Initialize DSC PPS variables to 0
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
For DSC MST, sometimes monitors would break out
in full-screen static. The issue traced back to the
PPS generation code, where these variables were being used
uninitialized and were picking up garbage.
memset to 0 to avoid this
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 3 +++
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index bb1e8e5b5252..a7f3a9ecc626 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -526,6 +526,9 @@ bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable)
struct dsc_config dsc_cfg;
uint8_t dsc_packed_pps[128];
+ memset(&dsc_cfg, 0, sizeof(dsc_cfg));
+ memset(dsc_packed_pps, 0, 128);
+
/* Enable DSC hw block */
dsc_cfg.pic_width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right;
dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
index 0111545dac75..6bdfee20b6a7 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
@@ -206,6 +206,9 @@ static bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const str
struct dsc_reg_values dsc_reg_vals;
struct dsc_optc_config dsc_optc_cfg;
+ memset(&dsc_reg_vals, 0, sizeof(dsc_reg_vals));
+ memset(&dsc_optc_cfg, 0, sizeof(dsc_optc_cfg));
+
DC_LOG_DSC("Getting packed DSC PPS for DSC Config:");
dsc_config_log(dsc, dsc_cfg);
DC_LOG_DSC("DSC Picture Parameter Set (PPS):");
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 08/17] drm/amd/display: Validate DSC caps on MST endpoints
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
During MST mode enumeration, if a new dc_sink is created,
populate it with dsc caps as appropriate.
Use drm_dp_mst_dsc_aux_for_port to get the raw caps,
then parse them onto dc_sink with dc_dsc_parse_dsc_dpcd.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 1 +
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 27 ++++++++++++++++++-
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index ae36d99d0fb2..b544498d435e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -323,6 +323,7 @@ struct amdgpu_dm_connector {
struct drm_dp_mst_port *port;
struct amdgpu_dm_connector *mst_port;
struct amdgpu_encoder *mst_encoder;
+ struct drm_dp_aux *dsc_aux;
/* TODO see if we can merge with ddc_bus or make a dm_connector */
struct amdgpu_i2c_adapter *i2c;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 81367c869134..7557edee7db0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -25,6 +25,7 @@
#include <linux/version.h>
#include <drm/drm_atomic_helper.h>
+#include <drm/drm_dp_mst_helper.h>
#include "dm_services.h"
#include "amdgpu.h"
#include "amdgpu_dm.h"
@@ -180,6 +181,26 @@ static const struct drm_connector_funcs dm_dp_mst_connector_funcs = {
.early_unregister = amdgpu_dm_mst_connector_early_unregister,
};
+static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnector)
+{
+ struct dc_sink *dc_sink = aconnector->dc_sink;
+ struct drm_dp_mst_port *port = aconnector->port;
+ u8 dsc_caps[16] = { 0 };
+
+ aconnector->dsc_aux = drm_dp_mst_dsc_aux_for_port(port);
+
+ if (!aconnector->dsc_aux)
+ return false;
+
+ if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DSC_SUPPORT, dsc_caps, 16) < 0)
+ return false;
+
+ if (!dc_dsc_parse_dsc_dpcd(dsc_caps, NULL, &dc_sink->sink_dsc_caps.dsc_dec_caps))
+ return false;
+
+ return true;
+}
+
static int dm_dp_mst_get_modes(struct drm_connector *connector)
{
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
@@ -222,10 +243,14 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
/* dc_link_add_remote_sink returns a new reference */
aconnector->dc_sink = dc_sink;
- if (aconnector->dc_sink)
+ if (aconnector->dc_sink) {
amdgpu_dm_update_freesync_caps(
connector, aconnector->edid);
+ if (!validate_dsc_caps_on_connector(aconnector))
+ memset(&aconnector->dc_sink->sink_dsc_caps,
+ 0, sizeof(aconnector->dc_sink->sink_dsc_caps));
+ }
}
drm_connector_update_edid_property(
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 08/17] drm/amd/display: Validate DSC caps on MST endpoints
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
During MST mode enumeration, if a new dc_sink is created,
populate it with dsc caps as appropriate.
Use drm_dp_mst_dsc_aux_for_port to get the raw caps,
then parse them onto dc_sink with dc_dsc_parse_dsc_dpcd.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 1 +
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 27 ++++++++++++++++++-
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index ae36d99d0fb2..b544498d435e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -323,6 +323,7 @@ struct amdgpu_dm_connector {
struct drm_dp_mst_port *port;
struct amdgpu_dm_connector *mst_port;
struct amdgpu_encoder *mst_encoder;
+ struct drm_dp_aux *dsc_aux;
/* TODO see if we can merge with ddc_bus or make a dm_connector */
struct amdgpu_i2c_adapter *i2c;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 81367c869134..7557edee7db0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -25,6 +25,7 @@
#include <linux/version.h>
#include <drm/drm_atomic_helper.h>
+#include <drm/drm_dp_mst_helper.h>
#include "dm_services.h"
#include "amdgpu.h"
#include "amdgpu_dm.h"
@@ -180,6 +181,26 @@ static const struct drm_connector_funcs dm_dp_mst_connector_funcs = {
.early_unregister = amdgpu_dm_mst_connector_early_unregister,
};
+static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnector)
+{
+ struct dc_sink *dc_sink = aconnector->dc_sink;
+ struct drm_dp_mst_port *port = aconnector->port;
+ u8 dsc_caps[16] = { 0 };
+
+ aconnector->dsc_aux = drm_dp_mst_dsc_aux_for_port(port);
+
+ if (!aconnector->dsc_aux)
+ return false;
+
+ if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DSC_SUPPORT, dsc_caps, 16) < 0)
+ return false;
+
+ if (!dc_dsc_parse_dsc_dpcd(dsc_caps, NULL, &dc_sink->sink_dsc_caps.dsc_dec_caps))
+ return false;
+
+ return true;
+}
+
static int dm_dp_mst_get_modes(struct drm_connector *connector)
{
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
@@ -222,10 +243,14 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
/* dc_link_add_remote_sink returns a new reference */
aconnector->dc_sink = dc_sink;
- if (aconnector->dc_sink)
+ if (aconnector->dc_sink) {
amdgpu_dm_update_freesync_caps(
connector, aconnector->edid);
+ if (!validate_dsc_caps_on_connector(aconnector))
+ memset(&aconnector->dc_sink->sink_dsc_caps,
+ 0, sizeof(aconnector->dc_sink->sink_dsc_caps));
+ }
}
drm_connector_update_edid_property(
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 09/17] drm/amd/display: Write DSC enable to MST DPCD
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
Rework the dm_helpers_write_dsc_enable callback to
handle the MST case.
Use the cached dsc_aux field.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 66f266a5e10b..069b7a6f5597 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -37,6 +37,7 @@
#include "dc.h"
#include "amdgpu_dm.h"
#include "amdgpu_dm_irq.h"
+#include "amdgpu_dm_mst_types.h"
#include "dm_helpers.h"
@@ -516,8 +517,24 @@ bool dm_helpers_dp_write_dsc_enable(
)
{
uint8_t enable_dsc = enable ? 1 : 0;
+ struct amdgpu_dm_connector *aconnector;
+
+ if (!stream)
+ return false;
+
+ if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
+ aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+ if (!aconnector->dsc_aux)
+ return false;
+
+ return (drm_dp_dpcd_write(aconnector->dsc_aux, DP_DSC_ENABLE, &enable_dsc, 1) >= 0);
+ }
+
+ if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT)
+ return dm_helpers_dp_write_dpcd(ctx, stream->link, DP_DSC_ENABLE, &enable_dsc, 1);
- return dm_helpers_dp_write_dpcd(ctx, stream->sink->link, DP_DSC_ENABLE, &enable_dsc, 1);
+ return false;
}
bool dm_helpers_is_dp_sink_present(struct dc_link *link)
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 09/17] drm/amd/display: Write DSC enable to MST DPCD
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
Rework the dm_helpers_write_dsc_enable callback to
handle the MST case.
Use the cached dsc_aux field.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 66f266a5e10b..069b7a6f5597 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -37,6 +37,7 @@
#include "dc.h"
#include "amdgpu_dm.h"
#include "amdgpu_dm_irq.h"
+#include "amdgpu_dm_mst_types.h"
#include "dm_helpers.h"
@@ -516,8 +517,24 @@ bool dm_helpers_dp_write_dsc_enable(
)
{
uint8_t enable_dsc = enable ? 1 : 0;
+ struct amdgpu_dm_connector *aconnector;
+
+ if (!stream)
+ return false;
+
+ if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
+ aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+ if (!aconnector->dsc_aux)
+ return false;
+
+ return (drm_dp_dpcd_write(aconnector->dsc_aux, DP_DSC_ENABLE, &enable_dsc, 1) >= 0);
+ }
+
+ if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT)
+ return dm_helpers_dp_write_dpcd(ctx, stream->link, DP_DSC_ENABLE, &enable_dsc, 1);
- return dm_helpers_dp_write_dpcd(ctx, stream->sink->link, DP_DSC_ENABLE, &enable_dsc, 1);
+ return false;
}
bool dm_helpers_is_dp_sink_present(struct dc_link *link)
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 10/17] drm/dp_mst: Manually overwrite PBN divider for calculating timeslots
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
For DSC case we cannot always use topology manager's PBN divider
variable. The default divider does not take FEC into account.
Therefore we should allow driver to calculate its own divider based
on the link rate and count its handling, as it is hw specific.
[how]
Pass pbn_div as an argument, which will be used if its more than
zero, otherwise default topology manager's pbn_div will be used.
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++-
drivers/gpu/drm/drm_dp_mst_topology.c | 9 +++++++--
drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 3 ++-
include/drm/drm_dp_mst_helper.h | 3 ++-
5 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 9fc03fc1017d..753a79734817 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4972,7 +4972,8 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state,
mst_mgr,
mst_port,
- dm_new_connector_state->pbn);
+ dm_new_connector_state->pbn,
+ 0);
if (dm_new_connector_state->vcpi_slots < 0) {
DRM_DEBUG_ATOMIC("failed finding vcpi slots: %d\n", (int)dm_new_connector_state->vcpi_slots);
return dm_new_connector_state->vcpi_slots;
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 018921c4ba98..f1d883960831 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4020,6 +4020,7 @@ static int drm_dp_init_vcpi(struct drm_dp_mst_topology_mgr *mgr,
* @mgr: MST topology manager for the port
* @port: port to find vcpi slots for
* @pbn: bandwidth required for the mode in PBN
+ * @pbn_div: divider for DSC mode that takes FEC into account
*
* Allocates VCPI slots to @port, replacing any previous VCPI allocations it
* may have had. Any atomic drivers which support MST must call this function
@@ -4046,7 +4047,8 @@ static int drm_dp_init_vcpi(struct drm_dp_mst_topology_mgr *mgr,
*/
int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port, int pbn)
+ struct drm_dp_mst_port *port, int pbn,
+ int pbn_div)
{
struct drm_dp_mst_topology_state *topology_state;
struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
@@ -4079,7 +4081,10 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
if (!vcpi)
prev_slots = 0;
- req_slots = DIV_ROUND_UP(pbn, mgr->pbn_div);
+ if (pbn_div <= 0)
+ pbn_div = mgr->pbn_div;
+
+ req_slots = DIV_ROUND_UP(pbn, pbn_div);
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
port->connector->base.id, port->connector->name,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 92be17711287..a068f54a6793 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -65,7 +65,7 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
false);
slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
- port, crtc_state->pbn);
+ port, crtc_state->pbn, 0);
if (slots == -EDEADLK)
return slots;
if (slots >= 0)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 1c9e23d5a6fd..edb78966c5b6 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -787,7 +787,8 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
mstc->port,
- asyh->dp.pbn);
+ asyh->dp.pbn,
+ 0);
if (slots < 0)
return slots;
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 32e60b9d7098..0f813d6346aa 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -771,7 +771,8 @@ struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_a
int __must_check
drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port, int pbn);
+ struct drm_dp_mst_port *port, int pbn,
+ int pbn_div);
int __must_check
drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
--
2.17.1
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 10/17] drm/dp_mst: Manually overwrite PBN divider for calculating timeslots
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
For DSC case we cannot always use topology manager's PBN divider
variable. The default divider does not take FEC into account.
Therefore we should allow driver to calculate its own divider based
on the link rate and count its handling, as it is hw specific.
[how]
Pass pbn_div as an argument, which will be used if its more than
zero, otherwise default topology manager's pbn_div will be used.
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++-
drivers/gpu/drm/drm_dp_mst_topology.c | 9 +++++++--
drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 3 ++-
include/drm/drm_dp_mst_helper.h | 3 ++-
5 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 9fc03fc1017d..753a79734817 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4972,7 +4972,8 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state,
mst_mgr,
mst_port,
- dm_new_connector_state->pbn);
+ dm_new_connector_state->pbn,
+ 0);
if (dm_new_connector_state->vcpi_slots < 0) {
DRM_DEBUG_ATOMIC("failed finding vcpi slots: %d\n", (int)dm_new_connector_state->vcpi_slots);
return dm_new_connector_state->vcpi_slots;
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 018921c4ba98..f1d883960831 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4020,6 +4020,7 @@ static int drm_dp_init_vcpi(struct drm_dp_mst_topology_mgr *mgr,
* @mgr: MST topology manager for the port
* @port: port to find vcpi slots for
* @pbn: bandwidth required for the mode in PBN
+ * @pbn_div: divider for DSC mode that takes FEC into account
*
* Allocates VCPI slots to @port, replacing any previous VCPI allocations it
* may have had. Any atomic drivers which support MST must call this function
@@ -4046,7 +4047,8 @@ static int drm_dp_init_vcpi(struct drm_dp_mst_topology_mgr *mgr,
*/
int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port, int pbn)
+ struct drm_dp_mst_port *port, int pbn,
+ int pbn_div)
{
struct drm_dp_mst_topology_state *topology_state;
struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
@@ -4079,7 +4081,10 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
if (!vcpi)
prev_slots = 0;
- req_slots = DIV_ROUND_UP(pbn, mgr->pbn_div);
+ if (pbn_div <= 0)
+ pbn_div = mgr->pbn_div;
+
+ req_slots = DIV_ROUND_UP(pbn, pbn_div);
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
port->connector->base.id, port->connector->name,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 92be17711287..a068f54a6793 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -65,7 +65,7 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
false);
slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
- port, crtc_state->pbn);
+ port, crtc_state->pbn, 0);
if (slots == -EDEADLK)
return slots;
if (slots >= 0)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 1c9e23d5a6fd..edb78966c5b6 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -787,7 +787,8 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
mstc->port,
- asyh->dp.pbn);
+ asyh->dp.pbn,
+ 0);
if (slots < 0)
return slots;
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 32e60b9d7098..0f813d6346aa 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -771,7 +771,8 @@ struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_a
int __must_check
drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port, int pbn);
+ struct drm_dp_mst_port *port, int pbn,
+ int pbn_div);
int __must_check
drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
Adding a helper function to be called by
drivers outside of DRM to enable DSC on
the MST ports.
Function is called to recalculate VCPI allocation
if DSC is enabled and raise the DSC flag to enable.
In case of disabling DSC the flag is set to false
and recalculation of VCPI slots is expected to be done
in encoder's atomic_check.
v2: squash separate functions into one and call it per
port
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 61 +++++++++++++++++++++++++++
include/drm/drm_dp_mst_helper.h | 5 +++
2 files changed, 66 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index f1d883960831..5e549f48ffb8 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4742,6 +4742,67 @@ drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
return 0;
}
+/**
+ * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
+ * @state: Pointer to the new drm_atomic_state
+ * @pointer: Pointer to the affected MST Port
+ * @pbn: Newly recalculated bw required for link with DSC enabled
+ * @pbn_div: Divider to calculate correct number of pbn per slot
+ * @enable: Boolean flag enabling or disabling DSC on the port
+ *
+ * This function enables DSC on the given Port
+ * by recalculating its vcpi from pbn provided
+ * and sets dsc_enable flag to keep track of which
+ * ports have DSC enabled
+ *
+ */
+int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
+ struct drm_dp_mst_port *port,
+ int pbn, int pbn_div,
+ bool enable)
+{
+ struct drm_dp_mst_topology_state *mst_state;
+ struct drm_dp_vcpi_allocation *pos;
+ bool found = false;
+ int vcpi = 0;
+
+ mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
+
+ if (IS_ERR(mst_state))
+ return PTR_ERR(mst_state);
+
+ list_for_each_entry(pos, &mst_state->vcpis, next) {
+ if (pos->port == port) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation in mst state %p\n",
+ port, mst_state);
+ return -EINVAL;
+ }
+
+ if (pos->dsc_enabled == enable) {
+ DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d, returning %d VCPI slots\n",
+ port, enable, pos->vcpi);
+ vcpi = pos->vcpi;
+ }
+
+ if (enable) {
+ vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port, pbn, pbn_div);
+ DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag, reallocating %d VCPI slots on the port\n",
+ port, vcpi);
+ if (vcpi < 0)
+ return -EINVAL;
+ }
+
+ pos->dsc_enabled = enable;
+
+ return vcpi;
+}
+EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
/**
* drm_dp_mst_atomic_check - Check that the new state of an MST topology in an
* atomic update is valid
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 0f813d6346aa..830c94b7f45d 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -502,6 +502,7 @@ struct drm_dp_payload {
struct drm_dp_vcpi_allocation {
struct drm_dp_mst_port *port;
int vcpi;
+ bool dsc_enabled;
struct list_head next;
};
@@ -773,6 +774,10 @@ drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port, int pbn,
int pbn_div);
+int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
+ struct drm_dp_mst_port *port,
+ int pbn, int pbn_div,
+ bool enable);
int __must_check
drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, Harry Wentland, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
Adding a helper function to be called by
drivers outside of DRM to enable DSC on
the MST ports.
Function is called to recalculate VCPI allocation
if DSC is enabled and raise the DSC flag to enable.
In case of disabling DSC the flag is set to false
and recalculation of VCPI slots is expected to be done
in encoder's atomic_check.
v2: squash separate functions into one and call it per
port
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 61 +++++++++++++++++++++++++++
include/drm/drm_dp_mst_helper.h | 5 +++
2 files changed, 66 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index f1d883960831..5e549f48ffb8 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4742,6 +4742,67 @@ drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
return 0;
}
+/**
+ * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
+ * @state: Pointer to the new drm_atomic_state
+ * @pointer: Pointer to the affected MST Port
+ * @pbn: Newly recalculated bw required for link with DSC enabled
+ * @pbn_div: Divider to calculate correct number of pbn per slot
+ * @enable: Boolean flag enabling or disabling DSC on the port
+ *
+ * This function enables DSC on the given Port
+ * by recalculating its vcpi from pbn provided
+ * and sets dsc_enable flag to keep track of which
+ * ports have DSC enabled
+ *
+ */
+int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
+ struct drm_dp_mst_port *port,
+ int pbn, int pbn_div,
+ bool enable)
+{
+ struct drm_dp_mst_topology_state *mst_state;
+ struct drm_dp_vcpi_allocation *pos;
+ bool found = false;
+ int vcpi = 0;
+
+ mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
+
+ if (IS_ERR(mst_state))
+ return PTR_ERR(mst_state);
+
+ list_for_each_entry(pos, &mst_state->vcpis, next) {
+ if (pos->port == port) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation in mst state %p\n",
+ port, mst_state);
+ return -EINVAL;
+ }
+
+ if (pos->dsc_enabled == enable) {
+ DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d, returning %d VCPI slots\n",
+ port, enable, pos->vcpi);
+ vcpi = pos->vcpi;
+ }
+
+ if (enable) {
+ vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port, pbn, pbn_div);
+ DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag, reallocating %d VCPI slots on the port\n",
+ port, vcpi);
+ if (vcpi < 0)
+ return -EINVAL;
+ }
+
+ pos->dsc_enabled = enable;
+
+ return vcpi;
+}
+EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
/**
* drm_dp_mst_atomic_check - Check that the new state of an MST topology in an
* atomic update is valid
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 0f813d6346aa..830c94b7f45d 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -502,6 +502,7 @@ struct drm_dp_payload {
struct drm_dp_vcpi_allocation {
struct drm_dp_mst_port *port;
int vcpi;
+ bool dsc_enabled;
struct list_head next;
};
@@ -773,6 +774,10 @@ drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port, int pbn,
int pbn_div);
+int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
+ struct drm_dp_mst_port *port,
+ int pbn, int pbn_div,
+ bool enable);
int __must_check
drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Jerry Zuo, Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
Adding PBN attribute to drm_dp_vcpi_allocation structure to
keep track of how much bandwidth each Port requires.
Adding drm_dp_mst_atomic_check_bw_limit to verify that
state's bandwidth needs doesn't exceed available bandwidth.
The funtion is called in drm_dp_mst_atomic_check after
drm_dp_mst_atomic_check_topology_state to fully verify that
the proposed topology is supported.
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 67 ++++++++++++++++++++++++++-
include/drm/drm_dp_mst_helper.h | 1 +
2 files changed, 66 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5e549f48ffb8..76bcbb4cd8b4 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4052,7 +4052,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
{
struct drm_dp_mst_topology_state *topology_state;
struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
- int prev_slots, req_slots;
+ int prev_slots, prev_bw, req_slots, ret;
topology_state = drm_atomic_get_mst_topology_state(state, mgr);
if (IS_ERR(topology_state))
@@ -4063,6 +4063,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
if (pos->port == port) {
vcpi = pos;
prev_slots = vcpi->vcpi;
+ prev_bw = vcpi->pbn;
/*
* This should never happen, unless the driver tries
@@ -4078,8 +4079,10 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
break;
}
}
- if (!vcpi)
+ if (!vcpi) {
prev_slots = 0;
+ prev_bw = 0;
+ }
if (pbn_div <= 0)
pbn_div = mgr->pbn_div;
@@ -4089,6 +4092,9 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
port->connector->base.id, port->connector->name,
port, prev_slots, req_slots);
+ DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n",
+ port->connector->base.id, port->connector->name,
+ port, prev_bw, pbn);
/* Add the new allocation to the state */
if (!vcpi) {
@@ -4101,6 +4107,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
list_add(&vcpi->next, &topology_state->vcpis);
}
vcpi->vcpi = req_slots;
+ vcpi->pbn = pbn;
return req_slots;
}
@@ -4703,6 +4710,59 @@ static void drm_dp_mst_destroy_state(struct drm_private_obj *obj,
kfree(mst_state);
}
+static bool drm_dp_mst_port_downstream_of_branch(struct drm_dp_mst_port *port,
+ struct drm_dp_mst_branch *branch)
+{
+ while (port->parent) {
+ if (port->parent == branch)
+ return true;
+
+ if (port->parent->port_parent)
+ port = port->parent->port_parent;
+ else
+ break;
+ }
+ return false;
+}
+
+static inline
+int drm_dp_mst_atomic_check_bw_limit(struct drm_dp_mst_branch *branch,
+ struct drm_dp_mst_topology_state *mst_state)
+{
+ struct drm_dp_mst_port *port;
+ struct drm_dp_vcpi_allocation *vcpi;
+ int pbn_limit = 0, pbn_used = 0;
+
+ list_for_each_entry(port, &branch->ports, next) {
+ if (port->mstb) {
+ if (drm_dp_mst_atomic_check_bw_limit(port->mstb, mst_state))
+ return -EINVAL;
+ }
+ if (port->available_pbn > 0)
+ pbn_limit = port->available_pbn;
+ }
+ DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch has %d PBN available\n",
+ branch,
+ pbn_limit);
+
+ list_for_each_entry(vcpi, &mst_state->vcpis, next) {
+ if (!vcpi->pbn)
+ continue;
+
+ if (drm_dp_mst_port_downstream_of_branch(vcpi->port, branch))
+ pbn_used += vcpi->pbn;
+ }
+ DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch used %d PBN\n",
+ branch,
+ pbn_used);
+ if (pbn_used > pbn_limit) {
+ DRM_DEBUG_ATOMIC("[MST BRANCH:%p] No available bandwidth\n",
+ branch);
+ return -EINVAL;
+ }
+ return 0;
+}
+
static inline int
drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_topology_state *mst_state)
@@ -4834,6 +4894,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
if (ret)
break;
+ ret = drm_dp_mst_atomic_check_bw_limit(mgr->mst_primary, mst_state);
+ if (ret)
+ break;
}
return ret;
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 830c94b7f45d..2919d9776af3 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -502,6 +502,7 @@ struct drm_dp_payload {
struct drm_dp_vcpi_allocation {
struct drm_dp_mst_port *port;
int vcpi;
+ int pbn;
bool dsc_enabled;
struct list_head next;
};
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Jerry Zuo, Mikita Lipski, Harry Wentland, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
Adding PBN attribute to drm_dp_vcpi_allocation structure to
keep track of how much bandwidth each Port requires.
Adding drm_dp_mst_atomic_check_bw_limit to verify that
state's bandwidth needs doesn't exceed available bandwidth.
The funtion is called in drm_dp_mst_atomic_check after
drm_dp_mst_atomic_check_topology_state to fully verify that
the proposed topology is supported.
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 67 ++++++++++++++++++++++++++-
include/drm/drm_dp_mst_helper.h | 1 +
2 files changed, 66 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5e549f48ffb8..76bcbb4cd8b4 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4052,7 +4052,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
{
struct drm_dp_mst_topology_state *topology_state;
struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
- int prev_slots, req_slots;
+ int prev_slots, prev_bw, req_slots, ret;
topology_state = drm_atomic_get_mst_topology_state(state, mgr);
if (IS_ERR(topology_state))
@@ -4063,6 +4063,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
if (pos->port == port) {
vcpi = pos;
prev_slots = vcpi->vcpi;
+ prev_bw = vcpi->pbn;
/*
* This should never happen, unless the driver tries
@@ -4078,8 +4079,10 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
break;
}
}
- if (!vcpi)
+ if (!vcpi) {
prev_slots = 0;
+ prev_bw = 0;
+ }
if (pbn_div <= 0)
pbn_div = mgr->pbn_div;
@@ -4089,6 +4092,9 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
port->connector->base.id, port->connector->name,
port, prev_slots, req_slots);
+ DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n",
+ port->connector->base.id, port->connector->name,
+ port, prev_bw, pbn);
/* Add the new allocation to the state */
if (!vcpi) {
@@ -4101,6 +4107,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
list_add(&vcpi->next, &topology_state->vcpis);
}
vcpi->vcpi = req_slots;
+ vcpi->pbn = pbn;
return req_slots;
}
@@ -4703,6 +4710,59 @@ static void drm_dp_mst_destroy_state(struct drm_private_obj *obj,
kfree(mst_state);
}
+static bool drm_dp_mst_port_downstream_of_branch(struct drm_dp_mst_port *port,
+ struct drm_dp_mst_branch *branch)
+{
+ while (port->parent) {
+ if (port->parent == branch)
+ return true;
+
+ if (port->parent->port_parent)
+ port = port->parent->port_parent;
+ else
+ break;
+ }
+ return false;
+}
+
+static inline
+int drm_dp_mst_atomic_check_bw_limit(struct drm_dp_mst_branch *branch,
+ struct drm_dp_mst_topology_state *mst_state)
+{
+ struct drm_dp_mst_port *port;
+ struct drm_dp_vcpi_allocation *vcpi;
+ int pbn_limit = 0, pbn_used = 0;
+
+ list_for_each_entry(port, &branch->ports, next) {
+ if (port->mstb) {
+ if (drm_dp_mst_atomic_check_bw_limit(port->mstb, mst_state))
+ return -EINVAL;
+ }
+ if (port->available_pbn > 0)
+ pbn_limit = port->available_pbn;
+ }
+ DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch has %d PBN available\n",
+ branch,
+ pbn_limit);
+
+ list_for_each_entry(vcpi, &mst_state->vcpis, next) {
+ if (!vcpi->pbn)
+ continue;
+
+ if (drm_dp_mst_port_downstream_of_branch(vcpi->port, branch))
+ pbn_used += vcpi->pbn;
+ }
+ DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch used %d PBN\n",
+ branch,
+ pbn_used);
+ if (pbn_used > pbn_limit) {
+ DRM_DEBUG_ATOMIC("[MST BRANCH:%p] No available bandwidth\n",
+ branch);
+ return -EINVAL;
+ }
+ return 0;
+}
+
static inline int
drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_topology_state *mst_state)
@@ -4834,6 +4894,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
if (ret)
break;
+ ret = drm_dp_mst_atomic_check_bw_limit(mgr->mst_primary, mst_state);
+ if (ret)
+ break;
}
return ret;
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 830c94b7f45d..2919d9776af3 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -502,6 +502,7 @@ struct drm_dp_payload {
struct drm_dp_vcpi_allocation {
struct drm_dp_mst_port *port;
int vcpi;
+ int pbn;
bool dsc_enabled;
struct list_head next;
};
--
2.17.1
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 13/17] drm/amd/display: Add PBN per slot calculation for DSC
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
Need to calculate VCPI slots differently for DSC
to take in account current link rate, link count
and FEC.
[how]
Add helper to get pbn_div from dc_link
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 8 ++++++++
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h | 2 ++
2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 7557edee7db0..c376c8ccd391 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -491,3 +491,11 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
aconnector->connector_id);
}
+int dm_mst_get_pbn_divider(struct dc_link *link)
+{
+ if (!link)
+ return 0;
+
+ return dc_link_bandwidth_kbps(link,
+ dc_link_get_link_cap(link)) / (8 * 1000 * 54);
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
index 2da851b40042..a553ea046185 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -29,6 +29,8 @@
struct amdgpu_display_manager;
struct amdgpu_dm_connector;
+int dm_mst_get_pbn_divider(struct dc_link *link);
+
void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
struct amdgpu_dm_connector *aconnector);
--
2.17.1
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 13/17] drm/amd/display: Add PBN per slot calculation for DSC
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
Need to calculate VCPI slots differently for DSC
to take in account current link rate, link count
and FEC.
[how]
Add helper to get pbn_div from dc_link
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 8 ++++++++
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h | 2 ++
2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 7557edee7db0..c376c8ccd391 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -491,3 +491,11 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
aconnector->connector_id);
}
+int dm_mst_get_pbn_divider(struct dc_link *link)
+{
+ if (!link)
+ return 0;
+
+ return dc_link_bandwidth_kbps(link,
+ dc_link_get_link_cap(link)) / (8 * 1000 * 54);
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
index 2da851b40042..a553ea046185 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -29,6 +29,8 @@
struct amdgpu_display_manager;
struct amdgpu_dm_connector;
+int dm_mst_get_pbn_divider(struct dc_link *link);
+
void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
struct amdgpu_dm_connector *aconnector);
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 14/17] drm/amd/display: MST DSC compute fair share
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Manasi Navare, David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
If there is limited link bandwidth on a MST network,
it must be divided fairly between the streams on that network
Implement an algorithm to determine the correct DSC config
for each stream
The algorithm:
This
[ ] ( )
represents the range of bandwidths possible for a given stream.
The [] area represents the range of DSC configs, and the ()
represents no DSC. The bandwidth used increases from left to right.
First, try disabling DSC on all streams
[ ] (|)
[ ] (|)
Check this against the bandwidth limits of the link and each branch
(including each endpoint). If it passes, the job is done
Second, try maximum DSC compression on all streams
that support DSC
[| ] ( )
[| ] ( )
If this does not pass, then enabling this combination of streams
is impossible
Otherwise, divide the remaining bandwidth evenly amongst the streams
[ | ] ( )
[ | ] ( )
If one or more of the streams reach minimum compression, evenly
divide the reamining bandwidth amongst the remaining streams
[ |] ( )
[ |] ( )
[ | ] ( )
[ | ] ( )
If all streams can reach minimum compression, disable compression
greedily
[ |] ( )
[ |] ( )
[ ] (|)
Perform this algorithm on each full update, on each MST link
with at least one DSC stream on it
After the configs are computed, call
dcn20_add_dsc_to_stream_resource on each stream with DSC enabled.
It is only after all streams are created that we can know which
of them will need DSC.
Do all of this at the end of amdgpu atomic check. If it fails,
fail check; This combination of timings cannot be supported.
v2: Use drm_dp_mst_atomic_check to validate bw for certain dsc
configurations
v3: Use dc_dsc_policy structure to get min and max bpp rate
for DSC configuration
Cc: Lyude Paul <lyude@redhat.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 364 ++++++++++++++++++
.../display/amdgpu_dm/amdgpu_dm_mst_types.h | 3 +
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 7 +-
.../drm/amd/display/dc/dcn20/dcn20_resource.h | 1 +
5 files changed, 376 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 753a79734817..93a230d956ee 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8095,6 +8095,9 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
+ if (!compute_mst_dsc_configs_for_state(state, dm_state->context))
+ goto fail;
+
if (dc_validate_global_state(dc, dm_state->context, false) != DC_OK) {
ret = -EINVAL;
goto fail;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index c376c8ccd391..6d13d1c33530 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -40,6 +40,10 @@
#if defined(CONFIG_DEBUG_FS)
#include "amdgpu_dm_debugfs.h"
#endif
+
+
+#include "dc/dcn20/dcn20_resource.h"
+
/* #define TRACE_DPCD */
#ifdef TRACE_DPCD
@@ -499,3 +503,363 @@ int dm_mst_get_pbn_divider(struct dc_link *link)
return dc_link_bandwidth_kbps(link,
dc_link_get_link_cap(link)) / (8 * 1000 * 54);
}
+
+struct dsc_mst_fairness_params {
+ struct dc_crtc_timing *timing;
+ struct dc_sink *sink;
+ struct dc_dsc_bw_range bw_range;
+ bool compression_possible;
+ struct drm_dp_mst_port *port;
+};
+
+struct dsc_mst_fairness_vars {
+ int pbn;
+ bool dsc_enabled;
+ int bpp_x16;
+};
+
+static int kbps_to_peak_pbn(int kbps)
+{
+ u64 peak_kbps = kbps;
+
+ peak_kbps *= 1006;
+ peak_kbps /= 1000;
+ return (int) DIV_ROUND_UP(peak_kbps * 64, (54 * 8 * 1000));
+}
+
+static void set_dsc_configs_from_fairness_vars(struct dsc_mst_fairness_params *params,
+ struct dsc_mst_fairness_vars *vars,
+ int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ memset(¶ms[i].timing->dsc_cfg, 0, sizeof(params[i].timing->dsc_cfg));
+ if (vars[i].dsc_enabled && dc_dsc_compute_config(
+ params[i].sink->ctx->dc->res_pool->dscs[0],
+ ¶ms[i].sink->sink_dsc_caps.dsc_dec_caps,
+ params[i].sink->ctx->dc->debug.dsc_min_slice_height_override,
+ 0,
+ params[i].timing,
+ ¶ms[i].timing->dsc_cfg)) {
+ params[i].timing->flags.DSC = 1;
+ params[i].timing->dsc_cfg.bits_per_pixel = vars[i].bpp_x16;
+ } else {
+ params[i].timing->flags.DSC = 0;
+ }
+ }
+}
+
+static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn)
+{
+ struct dc_dsc_config dsc_config;
+ u64 kbps;
+
+ kbps = (u64)pbn * 994 * 8 * 54 / 64;
+ dc_dsc_compute_config(
+ param.sink->ctx->dc->res_pool->dscs[0],
+ ¶m.sink->sink_dsc_caps.dsc_dec_caps,
+ param.sink->ctx->dc->debug.dsc_min_slice_height_override,
+ (int) kbps, param.timing, &dsc_config);
+
+ return dsc_config.bits_per_pixel;
+}
+
+static void increase_dsc_bpp(struct drm_atomic_state *state,
+ struct dc_link *dc_link,
+ struct dsc_mst_fairness_params *params,
+ struct dsc_mst_fairness_vars *vars,
+ int count)
+{
+ int i;
+ bool bpp_increased[MAX_PIPES];
+ int initial_slack[MAX_PIPES];
+ int min_initial_slack;
+ int next_index;
+ int remaining_to_increase = 0;
+ int pbn_per_timeslot;
+ int link_timeslots_used;
+ int fair_pbn_alloc;
+
+ for (i = 0; i < count; i++) {
+ if (vars[i].dsc_enabled) {
+ initial_slack[i] = kbps_to_peak_pbn(params[i].bw_range.max_kbps) - vars[i].pbn;
+ bpp_increased[i] = false;
+ remaining_to_increase += 1;
+ } else {
+ initial_slack[i] = 0;
+ bpp_increased[i] = true;
+ }
+ }
+
+ pbn_per_timeslot = dc_link_bandwidth_kbps(dc_link,
+ dc_link_get_link_cap(dc_link)) / (8 * 1000 * 54);
+
+ while (remaining_to_increase) {
+ next_index = -1;
+ min_initial_slack = -1;
+ for (i = 0; i < count; i++) {
+ if (!bpp_increased[i]) {
+ if (min_initial_slack == -1 || min_initial_slack > initial_slack[i]) {
+ min_initial_slack = initial_slack[i];
+ next_index = i;
+ }
+ }
+ }
+
+ if (next_index == -1)
+ break;
+
+ link_timeslots_used = 0;
+
+ for (i = 0; i < count; i++)
+ link_timeslots_used += DIV_ROUND_UP(vars[i].pbn, pbn_per_timeslot);
+
+ fair_pbn_alloc = (63 - link_timeslots_used) / remaining_to_increase * pbn_per_timeslot;
+
+ if (initial_slack[next_index] > fair_pbn_alloc) {
+ vars[next_index].pbn += fair_pbn_alloc;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ if (!drm_dp_mst_atomic_check(state)) {
+ vars[next_index].bpp_x16 = bpp_x16_from_pbn(params[next_index], vars[next_index].pbn);
+ } else {
+ vars[next_index].pbn -= fair_pbn_alloc;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ }
+ } else {
+ vars[next_index].pbn += initial_slack[next_index];
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ if (!drm_dp_mst_atomic_check(state)) {
+ vars[next_index].bpp_x16 = params[next_index].bw_range.max_target_bpp_x16;
+ } else {
+ vars[next_index].pbn -= initial_slack[next_index];
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ }
+ }
+
+ bpp_increased[next_index] = true;
+ remaining_to_increase--;
+ }
+}
+
+static void try_disable_dsc(struct drm_atomic_state *state,
+ struct dc_link *dc_link,
+ struct dsc_mst_fairness_params *params,
+ struct dsc_mst_fairness_vars *vars,
+ int count)
+{
+ int i;
+ bool tried[MAX_PIPES];
+ int kbps_increase[MAX_PIPES];
+ int max_kbps_increase;
+ int next_index;
+ int remaining_to_try = 0;
+
+ for (i = 0; i < count; i++) {
+ if (vars[i].dsc_enabled && vars[i].bpp_x16 == params[i].bw_range.max_target_bpp_x16) {
+ kbps_increase[i] = params[i].bw_range.stream_kbps - params[i].bw_range.max_kbps;
+ tried[i] = false;
+ remaining_to_try += 1;
+ } else {
+ kbps_increase[i] = 0;
+ tried[i] = true;
+ }
+ }
+
+ while (remaining_to_try) {
+ next_index = -1;
+ max_kbps_increase = -1;
+ for (i = 0; i < count; i++) {
+ if (!tried[i]) {
+ if (max_kbps_increase == -1 || max_kbps_increase < kbps_increase[i]) {
+ max_kbps_increase = kbps_increase[i];
+ next_index = i;
+ }
+ }
+ }
+
+ if (next_index == -1)
+ break;
+
+ vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.stream_kbps);
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ 0);
+
+ if (!drm_dp_mst_atomic_check(state)) {
+ vars[next_index].dsc_enabled = false;
+ vars[next_index].bpp_x16 = 0;
+ } else {
+ vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.max_kbps);
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ }
+
+ tried[next_index] = true;
+ remaining_to_try--;
+ }
+}
+
+static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state *state,
+ struct dc_state *dc_state,
+ struct dc_link *dc_link)
+{
+ int i;
+ struct dc_stream_state *stream;
+ struct dsc_mst_fairness_params params[MAX_PIPES];
+ struct dsc_mst_fairness_vars vars[MAX_PIPES];
+ struct amdgpu_dm_connector *aconnector;
+ int count = 0;
+
+ memset(params, 0, sizeof(params));
+
+ /* Set up params */
+ for (i = 0; i < dc_state->stream_count; i++) {
+ struct dc_dsc_policy dsc_policy = {0};
+
+ stream = dc_state->streams[i];
+
+ if (stream->link != dc_link)
+ continue;
+
+ stream->timing.flags.DSC = 0;
+
+ params[count].timing = &stream->timing;
+ params[count].sink = stream->sink;
+ aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+ params[count].port = aconnector->port;
+ params[count].compression_possible = stream->sink->sink_dsc_caps.dsc_dec_caps.is_dsc_supported;
+ dc_dsc_get_policy_for_timing(params[count].timing, &dsc_policy);
+ if (!dc_dsc_compute_bandwidth_range(
+ stream->sink->ctx->dc->res_pool->dscs[0],
+ stream->sink->ctx->dc->debug.dsc_min_slice_height_override,
+ dsc_policy.min_target_bpp,
+ dsc_policy.max_target_bpp,
+ &stream->sink->sink_dsc_caps.dsc_dec_caps,
+ &stream->timing, ¶ms[count].bw_range))
+ params[count].bw_range.stream_kbps = dc_bandwidth_in_kbps_from_timing(&stream->timing);
+
+ count++;
+ }
+ /* Try no compression */
+ for (i = 0; i < count; i++) {
+ vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
+ vars[i].dsc_enabled = false;
+ vars[i].bpp_x16 = 0;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[i].port->mgr,
+ params[i].port,
+ vars[i].pbn,
+ 0);
+ }
+ if (!drm_dp_mst_atomic_check(state)) {
+ set_dsc_configs_from_fairness_vars(params, vars, count);
+ return true;
+ }
+
+ /* Try max compression */
+ for (i = 0; i < count; i++) {
+ if (params[i].compression_possible) {
+ vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.min_kbps);
+ vars[i].dsc_enabled = true;
+ vars[i].bpp_x16 = params[i].bw_range.min_target_bpp_x16;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[i].port->mgr,
+ params[i].port,
+ vars[i].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ } else {
+ vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
+ vars[i].dsc_enabled = false;
+ vars[i].bpp_x16 = 0;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[i].port->mgr,
+ params[i].port,
+ vars[i].pbn,
+ 0);
+ }
+ }
+ if (drm_dp_mst_atomic_check(state))
+ return false;
+
+ /* Optimize degree of compression */
+ increase_dsc_bpp(state, dc_link, params, vars, count);
+
+ try_disable_dsc(state, dc_link, params, vars, count);
+
+ set_dsc_configs_from_fairness_vars(params, vars, count);
+
+ return true;
+}
+
+bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+ struct dc_state *dc_state)
+{
+ int i, j;
+ struct dc_stream_state *stream;
+ bool computed_streams[MAX_PIPES];
+ struct amdgpu_dm_connector *aconnector;
+
+ for (i = 0; i < dc_state->stream_count; i++)
+ computed_streams[i] = false;
+
+ for (i = 0; i < dc_state->stream_count; i++) {
+ stream = dc_state->streams[i];
+
+ if (stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST)
+ continue;
+
+ aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+ if (!aconnector || !aconnector->dc_sink)
+ continue;
+
+ if (!aconnector->dc_sink->sink_dsc_caps.dsc_dec_caps.is_dsc_supported)
+ continue;
+
+ if (computed_streams[i])
+ continue;
+
+ mutex_lock(&aconnector->mst_mgr.lock);
+ if (!compute_mst_dsc_configs_for_link(state, dc_state, stream->link)) {
+ mutex_unlock(&aconnector->mst_mgr.lock);
+ return false;
+ }
+ mutex_unlock(&aconnector->mst_mgr.lock);
+
+ for (j = 0; j < dc_state->stream_count; j++) {
+ if (dc_state->streams[j]->link == stream->link)
+ computed_streams[j] = true;
+ }
+ }
+
+ for (i = 0; i < dc_state->stream_count; i++) {
+ stream = dc_state->streams[i];
+
+ if (stream->timing.flags.DSC == 1)
+ dcn20_add_dsc_to_stream_resource(stream->ctx->dc, dc_state, stream);
+ }
+
+ return true;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
index a553ea046185..d451ce9cecc0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -34,4 +34,7 @@ int dm_mst_get_pbn_divider(struct dc_link *link);
void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
struct amdgpu_dm_connector *aconnector);
+
+bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+ struct dc_state *dc_state);
#endif
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 2ccfd84a7da4..7f03a6b5ae1b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1558,7 +1558,7 @@ static void release_dsc(struct resource_context *res_ctx,
-static enum dc_status add_dsc_to_stream_resource(struct dc *dc,
+enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc,
struct dc_state *dc_ctx,
struct dc_stream_state *dc_stream)
{
@@ -1573,6 +1573,9 @@ static enum dc_status add_dsc_to_stream_resource(struct dc *dc,
if (pipe_ctx->stream != dc_stream)
continue;
+ if (pipe_ctx->stream_res.dsc)
+ continue;
+
acquire_dsc(&dc_ctx->res_ctx, pool, &pipe_ctx->stream_res.dsc);
/* The number of DSCs can be less than the number of pipes */
@@ -1622,7 +1625,7 @@ enum dc_status dcn20_add_stream_to_ctx(struct dc *dc, struct dc_state *new_ctx,
/* Get a DSC if required and available */
if (result == DC_OK && dc_stream->timing.flags.DSC)
- result = add_dsc_to_stream_resource(dc, new_ctx, dc_stream);
+ result = dcn20_add_dsc_to_stream_resource(dc, new_ctx, dc_stream);
if (result == DC_OK)
result = dcn20_build_mapped_resource(dc, new_ctx, dc_stream);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
index 840ca66c34e1..f5893840b79b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
@@ -157,6 +157,7 @@ void dcn20_calculate_dlg_params(
enum dc_status dcn20_build_mapped_resource(const struct dc *dc, struct dc_state *context, struct dc_stream_state *stream);
enum dc_status dcn20_add_stream_to_ctx(struct dc *dc, struct dc_state *new_ctx, struct dc_stream_state *dc_stream);
+enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc, struct dc_state *dc_ctx, struct dc_stream_state *dc_stream);
enum dc_status dcn20_remove_stream_from_ctx(struct dc *dc, struct dc_state *new_ctx, struct dc_stream_state *dc_stream);
enum dc_status dcn20_get_default_swizzle_mode(struct dc_plane_state *plane_state);
--
2.17.1
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^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 14/17] drm/amd/display: MST DSC compute fair share
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Manasi Navare, David Francis, Mikita Lipski, dri-devel
From: David Francis <David.Francis@amd.com>
If there is limited link bandwidth on a MST network,
it must be divided fairly between the streams on that network
Implement an algorithm to determine the correct DSC config
for each stream
The algorithm:
This
[ ] ( )
represents the range of bandwidths possible for a given stream.
The [] area represents the range of DSC configs, and the ()
represents no DSC. The bandwidth used increases from left to right.
First, try disabling DSC on all streams
[ ] (|)
[ ] (|)
Check this against the bandwidth limits of the link and each branch
(including each endpoint). If it passes, the job is done
Second, try maximum DSC compression on all streams
that support DSC
[| ] ( )
[| ] ( )
If this does not pass, then enabling this combination of streams
is impossible
Otherwise, divide the remaining bandwidth evenly amongst the streams
[ | ] ( )
[ | ] ( )
If one or more of the streams reach minimum compression, evenly
divide the reamining bandwidth amongst the remaining streams
[ |] ( )
[ |] ( )
[ | ] ( )
[ | ] ( )
If all streams can reach minimum compression, disable compression
greedily
[ |] ( )
[ |] ( )
[ ] (|)
Perform this algorithm on each full update, on each MST link
with at least one DSC stream on it
After the configs are computed, call
dcn20_add_dsc_to_stream_resource on each stream with DSC enabled.
It is only after all streams are created that we can know which
of them will need DSC.
Do all of this at the end of amdgpu atomic check. If it fails,
fail check; This combination of timings cannot be supported.
v2: Use drm_dp_mst_atomic_check to validate bw for certain dsc
configurations
v3: Use dc_dsc_policy structure to get min and max bpp rate
for DSC configuration
Cc: Lyude Paul <lyude@redhat.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 364 ++++++++++++++++++
.../display/amdgpu_dm/amdgpu_dm_mst_types.h | 3 +
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 7 +-
.../drm/amd/display/dc/dcn20/dcn20_resource.h | 1 +
5 files changed, 376 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 753a79734817..93a230d956ee 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8095,6 +8095,9 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
+ if (!compute_mst_dsc_configs_for_state(state, dm_state->context))
+ goto fail;
+
if (dc_validate_global_state(dc, dm_state->context, false) != DC_OK) {
ret = -EINVAL;
goto fail;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index c376c8ccd391..6d13d1c33530 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -40,6 +40,10 @@
#if defined(CONFIG_DEBUG_FS)
#include "amdgpu_dm_debugfs.h"
#endif
+
+
+#include "dc/dcn20/dcn20_resource.h"
+
/* #define TRACE_DPCD */
#ifdef TRACE_DPCD
@@ -499,3 +503,363 @@ int dm_mst_get_pbn_divider(struct dc_link *link)
return dc_link_bandwidth_kbps(link,
dc_link_get_link_cap(link)) / (8 * 1000 * 54);
}
+
+struct dsc_mst_fairness_params {
+ struct dc_crtc_timing *timing;
+ struct dc_sink *sink;
+ struct dc_dsc_bw_range bw_range;
+ bool compression_possible;
+ struct drm_dp_mst_port *port;
+};
+
+struct dsc_mst_fairness_vars {
+ int pbn;
+ bool dsc_enabled;
+ int bpp_x16;
+};
+
+static int kbps_to_peak_pbn(int kbps)
+{
+ u64 peak_kbps = kbps;
+
+ peak_kbps *= 1006;
+ peak_kbps /= 1000;
+ return (int) DIV_ROUND_UP(peak_kbps * 64, (54 * 8 * 1000));
+}
+
+static void set_dsc_configs_from_fairness_vars(struct dsc_mst_fairness_params *params,
+ struct dsc_mst_fairness_vars *vars,
+ int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ memset(¶ms[i].timing->dsc_cfg, 0, sizeof(params[i].timing->dsc_cfg));
+ if (vars[i].dsc_enabled && dc_dsc_compute_config(
+ params[i].sink->ctx->dc->res_pool->dscs[0],
+ ¶ms[i].sink->sink_dsc_caps.dsc_dec_caps,
+ params[i].sink->ctx->dc->debug.dsc_min_slice_height_override,
+ 0,
+ params[i].timing,
+ ¶ms[i].timing->dsc_cfg)) {
+ params[i].timing->flags.DSC = 1;
+ params[i].timing->dsc_cfg.bits_per_pixel = vars[i].bpp_x16;
+ } else {
+ params[i].timing->flags.DSC = 0;
+ }
+ }
+}
+
+static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn)
+{
+ struct dc_dsc_config dsc_config;
+ u64 kbps;
+
+ kbps = (u64)pbn * 994 * 8 * 54 / 64;
+ dc_dsc_compute_config(
+ param.sink->ctx->dc->res_pool->dscs[0],
+ ¶m.sink->sink_dsc_caps.dsc_dec_caps,
+ param.sink->ctx->dc->debug.dsc_min_slice_height_override,
+ (int) kbps, param.timing, &dsc_config);
+
+ return dsc_config.bits_per_pixel;
+}
+
+static void increase_dsc_bpp(struct drm_atomic_state *state,
+ struct dc_link *dc_link,
+ struct dsc_mst_fairness_params *params,
+ struct dsc_mst_fairness_vars *vars,
+ int count)
+{
+ int i;
+ bool bpp_increased[MAX_PIPES];
+ int initial_slack[MAX_PIPES];
+ int min_initial_slack;
+ int next_index;
+ int remaining_to_increase = 0;
+ int pbn_per_timeslot;
+ int link_timeslots_used;
+ int fair_pbn_alloc;
+
+ for (i = 0; i < count; i++) {
+ if (vars[i].dsc_enabled) {
+ initial_slack[i] = kbps_to_peak_pbn(params[i].bw_range.max_kbps) - vars[i].pbn;
+ bpp_increased[i] = false;
+ remaining_to_increase += 1;
+ } else {
+ initial_slack[i] = 0;
+ bpp_increased[i] = true;
+ }
+ }
+
+ pbn_per_timeslot = dc_link_bandwidth_kbps(dc_link,
+ dc_link_get_link_cap(dc_link)) / (8 * 1000 * 54);
+
+ while (remaining_to_increase) {
+ next_index = -1;
+ min_initial_slack = -1;
+ for (i = 0; i < count; i++) {
+ if (!bpp_increased[i]) {
+ if (min_initial_slack == -1 || min_initial_slack > initial_slack[i]) {
+ min_initial_slack = initial_slack[i];
+ next_index = i;
+ }
+ }
+ }
+
+ if (next_index == -1)
+ break;
+
+ link_timeslots_used = 0;
+
+ for (i = 0; i < count; i++)
+ link_timeslots_used += DIV_ROUND_UP(vars[i].pbn, pbn_per_timeslot);
+
+ fair_pbn_alloc = (63 - link_timeslots_used) / remaining_to_increase * pbn_per_timeslot;
+
+ if (initial_slack[next_index] > fair_pbn_alloc) {
+ vars[next_index].pbn += fair_pbn_alloc;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ if (!drm_dp_mst_atomic_check(state)) {
+ vars[next_index].bpp_x16 = bpp_x16_from_pbn(params[next_index], vars[next_index].pbn);
+ } else {
+ vars[next_index].pbn -= fair_pbn_alloc;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ }
+ } else {
+ vars[next_index].pbn += initial_slack[next_index];
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ if (!drm_dp_mst_atomic_check(state)) {
+ vars[next_index].bpp_x16 = params[next_index].bw_range.max_target_bpp_x16;
+ } else {
+ vars[next_index].pbn -= initial_slack[next_index];
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ }
+ }
+
+ bpp_increased[next_index] = true;
+ remaining_to_increase--;
+ }
+}
+
+static void try_disable_dsc(struct drm_atomic_state *state,
+ struct dc_link *dc_link,
+ struct dsc_mst_fairness_params *params,
+ struct dsc_mst_fairness_vars *vars,
+ int count)
+{
+ int i;
+ bool tried[MAX_PIPES];
+ int kbps_increase[MAX_PIPES];
+ int max_kbps_increase;
+ int next_index;
+ int remaining_to_try = 0;
+
+ for (i = 0; i < count; i++) {
+ if (vars[i].dsc_enabled && vars[i].bpp_x16 == params[i].bw_range.max_target_bpp_x16) {
+ kbps_increase[i] = params[i].bw_range.stream_kbps - params[i].bw_range.max_kbps;
+ tried[i] = false;
+ remaining_to_try += 1;
+ } else {
+ kbps_increase[i] = 0;
+ tried[i] = true;
+ }
+ }
+
+ while (remaining_to_try) {
+ next_index = -1;
+ max_kbps_increase = -1;
+ for (i = 0; i < count; i++) {
+ if (!tried[i]) {
+ if (max_kbps_increase == -1 || max_kbps_increase < kbps_increase[i]) {
+ max_kbps_increase = kbps_increase[i];
+ next_index = i;
+ }
+ }
+ }
+
+ if (next_index == -1)
+ break;
+
+ vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.stream_kbps);
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ 0);
+
+ if (!drm_dp_mst_atomic_check(state)) {
+ vars[next_index].dsc_enabled = false;
+ vars[next_index].bpp_x16 = 0;
+ } else {
+ vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.max_kbps);
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[next_index].port->mgr,
+ params[next_index].port,
+ vars[next_index].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ }
+
+ tried[next_index] = true;
+ remaining_to_try--;
+ }
+}
+
+static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state *state,
+ struct dc_state *dc_state,
+ struct dc_link *dc_link)
+{
+ int i;
+ struct dc_stream_state *stream;
+ struct dsc_mst_fairness_params params[MAX_PIPES];
+ struct dsc_mst_fairness_vars vars[MAX_PIPES];
+ struct amdgpu_dm_connector *aconnector;
+ int count = 0;
+
+ memset(params, 0, sizeof(params));
+
+ /* Set up params */
+ for (i = 0; i < dc_state->stream_count; i++) {
+ struct dc_dsc_policy dsc_policy = {0};
+
+ stream = dc_state->streams[i];
+
+ if (stream->link != dc_link)
+ continue;
+
+ stream->timing.flags.DSC = 0;
+
+ params[count].timing = &stream->timing;
+ params[count].sink = stream->sink;
+ aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+ params[count].port = aconnector->port;
+ params[count].compression_possible = stream->sink->sink_dsc_caps.dsc_dec_caps.is_dsc_supported;
+ dc_dsc_get_policy_for_timing(params[count].timing, &dsc_policy);
+ if (!dc_dsc_compute_bandwidth_range(
+ stream->sink->ctx->dc->res_pool->dscs[0],
+ stream->sink->ctx->dc->debug.dsc_min_slice_height_override,
+ dsc_policy.min_target_bpp,
+ dsc_policy.max_target_bpp,
+ &stream->sink->sink_dsc_caps.dsc_dec_caps,
+ &stream->timing, ¶ms[count].bw_range))
+ params[count].bw_range.stream_kbps = dc_bandwidth_in_kbps_from_timing(&stream->timing);
+
+ count++;
+ }
+ /* Try no compression */
+ for (i = 0; i < count; i++) {
+ vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
+ vars[i].dsc_enabled = false;
+ vars[i].bpp_x16 = 0;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[i].port->mgr,
+ params[i].port,
+ vars[i].pbn,
+ 0);
+ }
+ if (!drm_dp_mst_atomic_check(state)) {
+ set_dsc_configs_from_fairness_vars(params, vars, count);
+ return true;
+ }
+
+ /* Try max compression */
+ for (i = 0; i < count; i++) {
+ if (params[i].compression_possible) {
+ vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.min_kbps);
+ vars[i].dsc_enabled = true;
+ vars[i].bpp_x16 = params[i].bw_range.min_target_bpp_x16;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[i].port->mgr,
+ params[i].port,
+ vars[i].pbn,
+ dm_mst_get_pbn_divider(dc_link));
+ } else {
+ vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
+ vars[i].dsc_enabled = false;
+ vars[i].bpp_x16 = 0;
+ drm_dp_atomic_find_vcpi_slots(state,
+ params[i].port->mgr,
+ params[i].port,
+ vars[i].pbn,
+ 0);
+ }
+ }
+ if (drm_dp_mst_atomic_check(state))
+ return false;
+
+ /* Optimize degree of compression */
+ increase_dsc_bpp(state, dc_link, params, vars, count);
+
+ try_disable_dsc(state, dc_link, params, vars, count);
+
+ set_dsc_configs_from_fairness_vars(params, vars, count);
+
+ return true;
+}
+
+bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+ struct dc_state *dc_state)
+{
+ int i, j;
+ struct dc_stream_state *stream;
+ bool computed_streams[MAX_PIPES];
+ struct amdgpu_dm_connector *aconnector;
+
+ for (i = 0; i < dc_state->stream_count; i++)
+ computed_streams[i] = false;
+
+ for (i = 0; i < dc_state->stream_count; i++) {
+ stream = dc_state->streams[i];
+
+ if (stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST)
+ continue;
+
+ aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+ if (!aconnector || !aconnector->dc_sink)
+ continue;
+
+ if (!aconnector->dc_sink->sink_dsc_caps.dsc_dec_caps.is_dsc_supported)
+ continue;
+
+ if (computed_streams[i])
+ continue;
+
+ mutex_lock(&aconnector->mst_mgr.lock);
+ if (!compute_mst_dsc_configs_for_link(state, dc_state, stream->link)) {
+ mutex_unlock(&aconnector->mst_mgr.lock);
+ return false;
+ }
+ mutex_unlock(&aconnector->mst_mgr.lock);
+
+ for (j = 0; j < dc_state->stream_count; j++) {
+ if (dc_state->streams[j]->link == stream->link)
+ computed_streams[j] = true;
+ }
+ }
+
+ for (i = 0; i < dc_state->stream_count; i++) {
+ stream = dc_state->streams[i];
+
+ if (stream->timing.flags.DSC == 1)
+ dcn20_add_dsc_to_stream_resource(stream->ctx->dc, dc_state, stream);
+ }
+
+ return true;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
index a553ea046185..d451ce9cecc0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -34,4 +34,7 @@ int dm_mst_get_pbn_divider(struct dc_link *link);
void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
struct amdgpu_dm_connector *aconnector);
+
+bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+ struct dc_state *dc_state);
#endif
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 2ccfd84a7da4..7f03a6b5ae1b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1558,7 +1558,7 @@ static void release_dsc(struct resource_context *res_ctx,
-static enum dc_status add_dsc_to_stream_resource(struct dc *dc,
+enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc,
struct dc_state *dc_ctx,
struct dc_stream_state *dc_stream)
{
@@ -1573,6 +1573,9 @@ static enum dc_status add_dsc_to_stream_resource(struct dc *dc,
if (pipe_ctx->stream != dc_stream)
continue;
+ if (pipe_ctx->stream_res.dsc)
+ continue;
+
acquire_dsc(&dc_ctx->res_ctx, pool, &pipe_ctx->stream_res.dsc);
/* The number of DSCs can be less than the number of pipes */
@@ -1622,7 +1625,7 @@ enum dc_status dcn20_add_stream_to_ctx(struct dc *dc, struct dc_state *new_ctx,
/* Get a DSC if required and available */
if (result == DC_OK && dc_stream->timing.flags.DSC)
- result = add_dsc_to_stream_resource(dc, new_ctx, dc_stream);
+ result = dcn20_add_dsc_to_stream_resource(dc, new_ctx, dc_stream);
if (result == DC_OK)
result = dcn20_build_mapped_resource(dc, new_ctx, dc_stream);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
index 840ca66c34e1..f5893840b79b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
@@ -157,6 +157,7 @@ void dcn20_calculate_dlg_params(
enum dc_status dcn20_build_mapped_resource(const struct dc *dc, struct dc_state *context, struct dc_stream_state *stream);
enum dc_status dcn20_add_stream_to_ctx(struct dc *dc, struct dc_state *new_ctx, struct dc_stream_state *dc_stream);
+enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc, struct dc_state *dc_ctx, struct dc_stream_state *dc_stream);
enum dc_status dcn20_remove_stream_from_ctx(struct dc *dc, struct dc_state *new_ctx, struct dc_stream_state *dc_stream);
enum dc_status dcn20_get_default_swizzle_mode(struct dc_plane_state *plane_state);
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 15/17] drm/amd/display: Recalculate VCPI slots for new DSC connectors
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: dri-devel, Manasi Navare, Jerry Zuo, Mikita Lipski
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
Since for DSC MST connector's PBN is claculated differently
due to compression, we have to recalculate both PBN and
VCPI slots for that connector.
[how]
The function iterates through all the active streams to
find, which have DSC enabled, then recalculates PBN for
it and calls drm_dp_helper_update_vcpi_slots_for_dsc to
update connector's VCPI slots.
v2: - use drm_dp_mst_atomic_enable_dsc per port to
enable/disable DSC
v3: - Iterate through connector states from the state passed
- On each connector state get stream from dc_state,
instead CRTC state
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 76 +++++++++++++++++--
1 file changed, 71 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 93a230d956ee..2ac3a2f0b452 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4986,6 +4986,69 @@ const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
.atomic_check = dm_encoder_helper_atomic_check
};
+static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
+ struct dc_state *dc_state)
+{
+ struct dc_stream_state *stream = NULL;
+ struct drm_connector *connector;
+ struct drm_connector_state *new_con_state, *old_con_state;
+ struct amdgpu_dm_connector *aconnector;
+ struct dm_connector_state *dm_conn_state;
+ int i, j, clock, bpp;
+ int vcpi, pbn_div, pbn = 0;
+
+ for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+
+ aconnector = to_amdgpu_dm_connector(connector);
+
+ if (!aconnector->port)
+ continue;
+
+ if (!new_con_state || !new_con_state->crtc)
+ continue;
+
+ dm_conn_state = to_dm_connector_state(new_con_state);
+
+ for (j = 0; j < dc_state->stream_count; j++) {
+ stream = dc_state->streams[j];
+ if (!stream)
+ continue;
+
+ if ((struct amdgpu_dm_connector*)stream->dm_stream_context == aconnector)
+ break;
+
+ stream = NULL;
+ }
+
+ if (!stream)
+ continue;
+
+ if (stream->timing.flags.DSC != 1) {
+ drm_dp_mst_atomic_enable_dsc(state,
+ aconnector->port,
+ dm_conn_state->pbn,
+ 0,
+ false);
+ continue;
+ }
+
+ pbn_div = dm_mst_get_pbn_divider(stream->link);
+ bpp = stream->timing.dsc_cfg.bits_per_pixel;
+ clock = stream->timing.pix_clk_100hz / 10;
+ pbn = drm_dp_calc_pbn_mode(clock, bpp, true);
+ vcpi = drm_dp_mst_atomic_enable_dsc(state,
+ aconnector->port,
+ pbn, pbn_div,
+ true);
+ if (vcpi < 0)
+ return vcpi;
+
+ dm_conn_state->pbn = pbn;
+ dm_conn_state->vcpi_slots = vcpi;
+ }
+ return 0;
+}
+
static void dm_drm_plane_reset(struct drm_plane *plane)
{
struct dm_plane_state *amdgpu_state = NULL;
@@ -8022,11 +8085,6 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
- /* Perform validation of MST topology in the state*/
- ret = drm_dp_mst_atomic_check(state);
- if (ret)
- goto fail;
-
if (state->legacy_cursor_update) {
/*
* This is a fast cursor update coming from the plane update
@@ -8098,6 +8156,10 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (!compute_mst_dsc_configs_for_state(state, dm_state->context))
goto fail;
+ ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context);
+ if (ret)
+ goto fail;
+
if (dc_validate_global_state(dc, dm_state->context, false) != DC_OK) {
ret = -EINVAL;
goto fail;
@@ -8126,6 +8188,10 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
dc_retain_state(old_dm_state->context);
}
}
+ /* Perform validation of MST topology in the state*/
+ ret = drm_dp_mst_atomic_check(state);
+ if (ret)
+ goto fail;
/* Store the overall update type for use later in atomic check. */
for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
--
2.17.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 15/17] drm/amd/display: Recalculate VCPI slots for new DSC connectors
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx
Cc: dri-devel, Manasi Navare, Jerry Zuo, Mikita Lipski, Harry Wentland
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
Since for DSC MST connector's PBN is claculated differently
due to compression, we have to recalculate both PBN and
VCPI slots for that connector.
[how]
The function iterates through all the active streams to
find, which have DSC enabled, then recalculates PBN for
it and calls drm_dp_helper_update_vcpi_slots_for_dsc to
update connector's VCPI slots.
v2: - use drm_dp_mst_atomic_enable_dsc per port to
enable/disable DSC
v3: - Iterate through connector states from the state passed
- On each connector state get stream from dc_state,
instead CRTC state
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 76 +++++++++++++++++--
1 file changed, 71 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 93a230d956ee..2ac3a2f0b452 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4986,6 +4986,69 @@ const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
.atomic_check = dm_encoder_helper_atomic_check
};
+static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
+ struct dc_state *dc_state)
+{
+ struct dc_stream_state *stream = NULL;
+ struct drm_connector *connector;
+ struct drm_connector_state *new_con_state, *old_con_state;
+ struct amdgpu_dm_connector *aconnector;
+ struct dm_connector_state *dm_conn_state;
+ int i, j, clock, bpp;
+ int vcpi, pbn_div, pbn = 0;
+
+ for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+
+ aconnector = to_amdgpu_dm_connector(connector);
+
+ if (!aconnector->port)
+ continue;
+
+ if (!new_con_state || !new_con_state->crtc)
+ continue;
+
+ dm_conn_state = to_dm_connector_state(new_con_state);
+
+ for (j = 0; j < dc_state->stream_count; j++) {
+ stream = dc_state->streams[j];
+ if (!stream)
+ continue;
+
+ if ((struct amdgpu_dm_connector*)stream->dm_stream_context == aconnector)
+ break;
+
+ stream = NULL;
+ }
+
+ if (!stream)
+ continue;
+
+ if (stream->timing.flags.DSC != 1) {
+ drm_dp_mst_atomic_enable_dsc(state,
+ aconnector->port,
+ dm_conn_state->pbn,
+ 0,
+ false);
+ continue;
+ }
+
+ pbn_div = dm_mst_get_pbn_divider(stream->link);
+ bpp = stream->timing.dsc_cfg.bits_per_pixel;
+ clock = stream->timing.pix_clk_100hz / 10;
+ pbn = drm_dp_calc_pbn_mode(clock, bpp, true);
+ vcpi = drm_dp_mst_atomic_enable_dsc(state,
+ aconnector->port,
+ pbn, pbn_div,
+ true);
+ if (vcpi < 0)
+ return vcpi;
+
+ dm_conn_state->pbn = pbn;
+ dm_conn_state->vcpi_slots = vcpi;
+ }
+ return 0;
+}
+
static void dm_drm_plane_reset(struct drm_plane *plane)
{
struct dm_plane_state *amdgpu_state = NULL;
@@ -8022,11 +8085,6 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
- /* Perform validation of MST topology in the state*/
- ret = drm_dp_mst_atomic_check(state);
- if (ret)
- goto fail;
-
if (state->legacy_cursor_update) {
/*
* This is a fast cursor update coming from the plane update
@@ -8098,6 +8156,10 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (!compute_mst_dsc_configs_for_state(state, dm_state->context))
goto fail;
+ ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context);
+ if (ret)
+ goto fail;
+
if (dc_validate_global_state(dc, dm_state->context, false) != DC_OK) {
ret = -EINVAL;
goto fail;
@@ -8126,6 +8188,10 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
dc_retain_state(old_dm_state->context);
}
}
+ /* Perform validation of MST topology in the state*/
+ ret = drm_dp_mst_atomic_check(state);
+ if (ret)
+ goto fail;
/* Store the overall update type for use later in atomic check. */
for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
--
2.17.1
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Manasi Navare, Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
Whenever a connector on an MST network is changed or
undergoes a modeset, the DSC configs for each stream on that
topology will be recalculated. This can change their required
bandwidth, requiring a full reprogramming, as though a modeset
was performed, even if that stream did not change timing.
[how]
Adding helper to trigger modesets on MST DSC connectors
by setting mode_changed flag on CRTCs in the same topology
as affected connector
v2: use drm_dp_mst_dsc_aux_for_port function to verify
if the port is DSC capable
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 62 +++++++++++++++++++++++++++
include/drm/drm_dp_mst_helper.h | 2 +
2 files changed, 64 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 76bcbb4cd8b4..fb3710b727cc 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4802,6 +4802,68 @@ drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
return 0;
}
+/**
+ * drm_dp_mst_add_affected_dsc_crtcs
+ * @state: Pointer to the new &struct drm_dp_mst_topology_state
+ * @port: Pointer tothe port of connector with new state
+ *
+ * Whenever there is a change in mst topology
+ * DSC configuration would have to be recalculated
+ * therefore we need to trigger modeset on all affected
+ * CRTCs in that topology
+ *
+ * See also:
+ * drm_dp_mst_atomic_enable_dsc()
+ */
+int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr)
+{
+ struct drm_dp_mst_topology_state *mst_state;
+ struct drm_dp_vcpi_allocation *pos;
+ struct drm_connector *connector;
+ struct drm_connector_state *conn_state;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *crtc_state;
+
+ if (!mgr) {
+ DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer is pointing to NULL\n", mgr);
+ return -EINVAL;
+ }
+
+ mst_state = drm_atomic_get_mst_topology_state(state, mgr);
+
+ list_for_each_entry(pos, &mst_state->vcpis, next) {
+
+ connector = pos->port->connector;
+
+ if (!connector)
+ return -EINVAL;
+
+ conn_state = drm_atomic_get_connector_state(state, connector);
+
+ if (IS_ERR(conn_state))
+ return PTR_ERR(conn_state);
+
+ crtc = conn_state->crtc;
+
+ if (!crtc)
+ return -EINVAL;
+
+ if (!drm_dp_mst_dsc_aux_for_port(pos->port))
+ continue;
+
+ crtc_state = drm_atomic_get_crtc_state(mst_state->base.state, crtc);
+
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on CRTC %p\n", mgr, crtc);
+
+ crtc_state->mode_changed = true;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
+
/**
* drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
* @state: Pointer to the new drm_atomic_state
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 2919d9776af3..10e9c7049061 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -779,6 +779,8 @@ int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
struct drm_dp_mst_port *port,
int pbn, int pbn_div,
bool enable);
+int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
+ struct drm_dp_mst_topology_mgr *mgr);
int __must_check
drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
--
2.17.1
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx; +Cc: Manasi Navare, Mikita Lipski, dri-devel
From: Mikita Lipski <mikita.lipski@amd.com>
[why]
Whenever a connector on an MST network is changed or
undergoes a modeset, the DSC configs for each stream on that
topology will be recalculated. This can change their required
bandwidth, requiring a full reprogramming, as though a modeset
was performed, even if that stream did not change timing.
[how]
Adding helper to trigger modesets on MST DSC connectors
by setting mode_changed flag on CRTCs in the same topology
as affected connector
v2: use drm_dp_mst_dsc_aux_for_port function to verify
if the port is DSC capable
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 62 +++++++++++++++++++++++++++
include/drm/drm_dp_mst_helper.h | 2 +
2 files changed, 64 insertions(+)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 76bcbb4cd8b4..fb3710b727cc 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4802,6 +4802,68 @@ drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
return 0;
}
+/**
+ * drm_dp_mst_add_affected_dsc_crtcs
+ * @state: Pointer to the new &struct drm_dp_mst_topology_state
+ * @port: Pointer tothe port of connector with new state
+ *
+ * Whenever there is a change in mst topology
+ * DSC configuration would have to be recalculated
+ * therefore we need to trigger modeset on all affected
+ * CRTCs in that topology
+ *
+ * See also:
+ * drm_dp_mst_atomic_enable_dsc()
+ */
+int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr)
+{
+ struct drm_dp_mst_topology_state *mst_state;
+ struct drm_dp_vcpi_allocation *pos;
+ struct drm_connector *connector;
+ struct drm_connector_state *conn_state;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *crtc_state;
+
+ if (!mgr) {
+ DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer is pointing to NULL\n", mgr);
+ return -EINVAL;
+ }
+
+ mst_state = drm_atomic_get_mst_topology_state(state, mgr);
+
+ list_for_each_entry(pos, &mst_state->vcpis, next) {
+
+ connector = pos->port->connector;
+
+ if (!connector)
+ return -EINVAL;
+
+ conn_state = drm_atomic_get_connector_state(state, connector);
+
+ if (IS_ERR(conn_state))
+ return PTR_ERR(conn_state);
+
+ crtc = conn_state->crtc;
+
+ if (!crtc)
+ return -EINVAL;
+
+ if (!drm_dp_mst_dsc_aux_for_port(pos->port))
+ continue;
+
+ crtc_state = drm_atomic_get_crtc_state(mst_state->base.state, crtc);
+
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on CRTC %p\n", mgr, crtc);
+
+ crtc_state->mode_changed = true;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
+
/**
* drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
* @state: Pointer to the new drm_atomic_state
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 2919d9776af3..10e9c7049061 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -779,6 +779,8 @@ int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
struct drm_dp_mst_port *port,
int pbn, int pbn_div,
bool enable);
+int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
+ struct drm_dp_mst_topology_mgr *mgr);
int __must_check
drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
struct drm_dp_mst_topology_mgr *mgr,
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 17/17] drm/amd/display: Trigger modesets on MST DSC connectors
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-03 14:35 ` mikita.lipski
-1 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx
Cc: Leo Li, David Francis, dri-devel, Mikita Lipski, Nicholas Kazlauskas
From: Mikita Lipski <mikita.lipski@amd.com>
Whenever a connector on an MST network is attached, detached, or
undergoes a modeset, the DSC configs for each stream on that
topology will be recalculated. This can change their required
bandwidth, requiring a full reprogramming, as though a modeset
was performed, even if that stream did not change timing.
Therefore, whenever a crtc has drm_atomic_crtc_needs_modeset,
for each crtc that shares a MST topology with that stream and
supports DSC, add that crtc (and all affected connectors and
planes) to the atomic state and set mode_changed on its state
v2: Do this check only on Navi and before adding connectors
and planes on modesetting crtcs
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 33 +++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 2ac3a2f0b452..909665427110 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7930,6 +7930,29 @@ dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm,
return ret;
}
+static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc)
+{
+ struct drm_connector *connector;
+ struct drm_connector_state *conn_state;
+ struct amdgpu_dm_connector *aconnector = NULL;
+ int i;
+ for_each_new_connector_in_state(state, connector, conn_state, i) {
+ if (conn_state->crtc != crtc)
+ continue;
+
+ aconnector = to_amdgpu_dm_connector(connector);
+ if (!aconnector->port)
+ aconnector = NULL;
+ else
+ break;
+ }
+
+ if (!aconnector)
+ return 0;
+
+ return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_mgr);
+}
+
/**
* amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
* @dev: The DRM device
@@ -7982,6 +8005,16 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
+ if (adev->asic_type >= CHIP_NAVI10) {
+ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
+ ret = add_affected_mst_dsc_crtcs(state, crtc);
+ if (ret)
+ goto fail;
+ }
+ }
+ }
+
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
!new_crtc_state->color_mgmt_changed &&
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 70+ messages in thread
* [PATCH v8 17/17] drm/amd/display: Trigger modesets on MST DSC connectors
@ 2019-12-03 14:35 ` mikita.lipski
0 siblings, 0 replies; 70+ messages in thread
From: mikita.lipski @ 2019-12-03 14:35 UTC (permalink / raw)
To: amd-gfx
Cc: Leo Li, David Francis, dri-devel, Mikita Lipski, Nicholas Kazlauskas
From: Mikita Lipski <mikita.lipski@amd.com>
Whenever a connector on an MST network is attached, detached, or
undergoes a modeset, the DSC configs for each stream on that
topology will be recalculated. This can change their required
bandwidth, requiring a full reprogramming, as though a modeset
was performed, even if that stream did not change timing.
Therefore, whenever a crtc has drm_atomic_crtc_needs_modeset,
for each crtc that shares a MST topology with that stream and
supports DSC, add that crtc (and all affected connectors and
planes) to the atomic state and set mode_changed on its state
v2: Do this check only on Navi and before adding connectors
and planes on modesetting crtcs
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 33 +++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 2ac3a2f0b452..909665427110 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7930,6 +7930,29 @@ dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm,
return ret;
}
+static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc)
+{
+ struct drm_connector *connector;
+ struct drm_connector_state *conn_state;
+ struct amdgpu_dm_connector *aconnector = NULL;
+ int i;
+ for_each_new_connector_in_state(state, connector, conn_state, i) {
+ if (conn_state->crtc != crtc)
+ continue;
+
+ aconnector = to_amdgpu_dm_connector(connector);
+ if (!aconnector->port)
+ aconnector = NULL;
+ else
+ break;
+ }
+
+ if (!aconnector)
+ return 0;
+
+ return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_mgr);
+}
+
/**
* amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
* @dev: The DRM device
@@ -7982,6 +8005,16 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
+ if (adev->asic_type >= CHIP_NAVI10) {
+ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
+ ret = add_affected_mst_dsc_crtcs(state, crtc);
+ if (ret)
+ goto fail;
+ }
+ }
+ }
+
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
!new_crtc_state->color_mgmt_changed &&
--
2.17.1
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 70+ messages in thread
* Re: [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports
2019-12-03 14:35 ` mikita.lipski
(?)
@ 2019-12-03 21:09 ` kbuild test robot
-1 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 21:09 UTC (permalink / raw)
To: mikita.lipski
Cc: David Francis, Mikita Lipski, kbuild-all, dri-devel, amd-gfx
[-- Attachment #1: Type: text/plain, Size: 15990 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found
drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found
drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
drivers/usb/typec/class.c:1: warning: 'typec_altmode_unregister_notifier' not found
fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
>> include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/watch_queue.rst:166: WARNING: Inline literal start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:243: WARNING: Inline literal start-string without end-string.
Documentation/watch_queue.rst:243: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:242: WARNING: Inline emphasis start-string without end-string.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +162 include/drm/drm_dp_mst_helper.h
ad7f8a1f9ced7f Dave Airlie 2014-06-05 @162
:::::: The code at line 162 was first introduced by commit
:::::: ad7f8a1f9ced7f049f9b66d588723f243a7034cd drm/helper: add Displayport multi-stream helper (v0.6)
:::::: TO: Dave Airlie <airlied@redhat.com>
:::::: CC: Dave Airlie <airlied@redhat.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports
@ 2019-12-03 21:09 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 21:09 UTC (permalink / raw)
To: mikita.lipski
Cc: David Francis, Mikita Lipski, kbuild-all, dri-devel, amd-gfx
[-- Attachment #1: Type: text/plain, Size: 15990 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found
drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found
drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
drivers/usb/typec/class.c:1: warning: 'typec_altmode_unregister_notifier' not found
fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
>> include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/watch_queue.rst:166: WARNING: Inline literal start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:243: WARNING: Inline literal start-string without end-string.
Documentation/watch_queue.rst:243: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:242: WARNING: Inline emphasis start-string without end-string.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +162 include/drm/drm_dp_mst_helper.h
ad7f8a1f9ced7f Dave Airlie 2014-06-05 @162
:::::: The code at line 162 was first introduced by commit
:::::: ad7f8a1f9ced7f049f9b66d588723f243a7034cd drm/helper: add Displayport multi-stream helper (v0.6)
:::::: TO: Dave Airlie <airlied@redhat.com>
:::::: CC: Dave Airlie <airlied@redhat.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports
@ 2019-12-03 21:09 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 21:09 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 16148 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found
drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found
drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
drivers/usb/typec/class.c:1: warning: 'typec_altmode_unregister_notifier' not found
fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
>> include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/watch_queue.rst:166: WARNING: Inline literal start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:166: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:243: WARNING: Inline literal start-string without end-string.
Documentation/watch_queue.rst:243: WARNING: Inline emphasis start-string without end-string.
Documentation/watch_queue.rst:242: WARNING: Inline emphasis start-string without end-string.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +162 include/drm/drm_dp_mst_helper.h
ad7f8a1f9ced7f Dave Airlie 2014-06-05 @162
:::::: The code at line 162 was first introduced by commit
:::::: ad7f8a1f9ced7f049f9b66d588723f243a7034cd drm/helper: add Displayport multi-stream helper (v0.6)
:::::: TO: Dave Airlie <airlied@redhat.com>
:::::: CC: Dave Airlie <airlied@redhat.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
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^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
2019-12-03 14:35 ` mikita.lipski
(?)
@ 2019-12-03 21:52 ` kbuild test robot
-1 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 21:52 UTC (permalink / raw)
To: mikita.lipski; +Cc: Mikita Lipski, kbuild-all, dri-devel, amd-gfx
[-- Attachment #1: Type: text/plain, Size: 18961 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
>> drivers/gpu/drm/drm_dp_mst_topology.c:4764: warning: Function parameter or member 'port' not described in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4764: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +4764 drivers/gpu/drm/drm_dp_mst_topology.c
4744
4745 /**
4746 * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
4747 * @state: Pointer to the new drm_atomic_state
4748 * @pointer: Pointer to the affected MST Port
4749 * @pbn: Newly recalculated bw required for link with DSC enabled
4750 * @pbn_div: Divider to calculate correct number of pbn per slot
4751 * @enable: Boolean flag enabling or disabling DSC on the port
4752 *
4753 * This function enables DSC on the given Port
4754 * by recalculating its vcpi from pbn provided
4755 * and sets dsc_enable flag to keep track of which
4756 * ports have DSC enabled
4757 *
4758 */
4759 int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
4760 struct drm_dp_mst_port *port,
4761 int pbn, int pbn_div,
4762 bool enable)
> 4763 {
> 4764 struct drm_dp_mst_topology_state *mst_state;
4765 struct drm_dp_vcpi_allocation *pos;
4766 bool found = false;
4767 int vcpi = 0;
4768
4769 mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
4770
4771 if (IS_ERR(mst_state))
4772 return PTR_ERR(mst_state);
4773
4774 list_for_each_entry(pos, &mst_state->vcpis, next) {
4775 if (pos->port == port) {
4776 found = true;
4777 break;
4778 }
4779 }
4780
4781 if (!found) {
4782 DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation in mst state %p\n",
4783 port, mst_state);
4784 return -EINVAL;
4785 }
4786
4787 if (pos->dsc_enabled == enable) {
4788 DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d, returning %d VCPI slots\n",
4789 port, enable, pos->vcpi);
4790 vcpi = pos->vcpi;
4791 }
4792
4793 if (enable) {
4794 vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port, pbn, pbn_div);
4795 DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag, reallocating %d VCPI slots on the port\n",
4796 port, vcpi);
4797 if (vcpi < 0)
4798 return -EINVAL;
4799 }
4800
4801 pos->dsc_enabled = enable;
4802
4803 return vcpi;
4804 }
4805 EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
4806 /**
4807 * drm_dp_mst_atomic_check - Check that the new state of an MST topology in an
4808 * atomic update is valid
4809 * @state: Pointer to the new &struct drm_dp_mst_topology_state
4810 *
4811 * Checks the given topology state for an atomic update to ensure that it's
4812 * valid. This includes checking whether there's enough bandwidth to support
4813 * the new VCPI allocations in the atomic update.
4814 *
4815 * Any atomic drivers supporting DP MST must make sure to call this after
4816 * checking the rest of their state in their
4817 * &drm_mode_config_funcs.atomic_check() callback.
4818 *
4819 * See also:
4820 * drm_dp_atomic_find_vcpi_slots()
4821 * drm_dp_atomic_release_vcpi_slots()
4822 *
4823 * Returns:
4824 *
4825 * 0 if the new state is valid, negative error code otherwise.
4826 */
4827 int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
4828 {
4829 struct drm_dp_mst_topology_mgr *mgr;
4830 struct drm_dp_mst_topology_state *mst_state;
4831 int i, ret = 0;
4832
4833 for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) {
4834 ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
4835 if (ret)
4836 break;
4837 }
4838
4839 return ret;
4840 }
4841 EXPORT_SYMBOL(drm_dp_mst_atomic_check);
4842
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
[-- Attachment #2: .config.gz --]
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[-- Attachment #3: Type: text/plain, Size: 159 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
@ 2019-12-03 21:52 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 21:52 UTC (permalink / raw)
To: mikita.lipski; +Cc: Mikita Lipski, kbuild-all, dri-devel, amd-gfx
[-- Attachment #1: Type: text/plain, Size: 18961 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
>> drivers/gpu/drm/drm_dp_mst_topology.c:4764: warning: Function parameter or member 'port' not described in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4764: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +4764 drivers/gpu/drm/drm_dp_mst_topology.c
4744
4745 /**
4746 * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
4747 * @state: Pointer to the new drm_atomic_state
4748 * @pointer: Pointer to the affected MST Port
4749 * @pbn: Newly recalculated bw required for link with DSC enabled
4750 * @pbn_div: Divider to calculate correct number of pbn per slot
4751 * @enable: Boolean flag enabling or disabling DSC on the port
4752 *
4753 * This function enables DSC on the given Port
4754 * by recalculating its vcpi from pbn provided
4755 * and sets dsc_enable flag to keep track of which
4756 * ports have DSC enabled
4757 *
4758 */
4759 int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
4760 struct drm_dp_mst_port *port,
4761 int pbn, int pbn_div,
4762 bool enable)
> 4763 {
> 4764 struct drm_dp_mst_topology_state *mst_state;
4765 struct drm_dp_vcpi_allocation *pos;
4766 bool found = false;
4767 int vcpi = 0;
4768
4769 mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
4770
4771 if (IS_ERR(mst_state))
4772 return PTR_ERR(mst_state);
4773
4774 list_for_each_entry(pos, &mst_state->vcpis, next) {
4775 if (pos->port == port) {
4776 found = true;
4777 break;
4778 }
4779 }
4780
4781 if (!found) {
4782 DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation in mst state %p\n",
4783 port, mst_state);
4784 return -EINVAL;
4785 }
4786
4787 if (pos->dsc_enabled == enable) {
4788 DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d, returning %d VCPI slots\n",
4789 port, enable, pos->vcpi);
4790 vcpi = pos->vcpi;
4791 }
4792
4793 if (enable) {
4794 vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port, pbn, pbn_div);
4795 DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag, reallocating %d VCPI slots on the port\n",
4796 port, vcpi);
4797 if (vcpi < 0)
4798 return -EINVAL;
4799 }
4800
4801 pos->dsc_enabled = enable;
4802
4803 return vcpi;
4804 }
4805 EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
4806 /**
4807 * drm_dp_mst_atomic_check - Check that the new state of an MST topology in an
4808 * atomic update is valid
4809 * @state: Pointer to the new &struct drm_dp_mst_topology_state
4810 *
4811 * Checks the given topology state for an atomic update to ensure that it's
4812 * valid. This includes checking whether there's enough bandwidth to support
4813 * the new VCPI allocations in the atomic update.
4814 *
4815 * Any atomic drivers supporting DP MST must make sure to call this after
4816 * checking the rest of their state in their
4817 * &drm_mode_config_funcs.atomic_check() callback.
4818 *
4819 * See also:
4820 * drm_dp_atomic_find_vcpi_slots()
4821 * drm_dp_atomic_release_vcpi_slots()
4822 *
4823 * Returns:
4824 *
4825 * 0 if the new state is valid, negative error code otherwise.
4826 */
4827 int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
4828 {
4829 struct drm_dp_mst_topology_mgr *mgr;
4830 struct drm_dp_mst_topology_state *mst_state;
4831 int i, ret = 0;
4832
4833 for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) {
4834 ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
4835 if (ret)
4836 break;
4837 }
4838
4839 return ret;
4840 }
4841 EXPORT_SYMBOL(drm_dp_mst_atomic_check);
4842
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 7371 bytes --]
[-- Attachment #3: Type: text/plain, Size: 153 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
@ 2019-12-03 21:52 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 21:52 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 19206 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
>> drivers/gpu/drm/drm_dp_mst_topology.c:4764: warning: Function parameter or member 'port' not described in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4764: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4763: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +4764 drivers/gpu/drm/drm_dp_mst_topology.c
4744
4745 /**
4746 * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
4747 * @state: Pointer to the new drm_atomic_state
4748 * @pointer: Pointer to the affected MST Port
4749 * @pbn: Newly recalculated bw required for link with DSC enabled
4750 * @pbn_div: Divider to calculate correct number of pbn per slot
4751 * @enable: Boolean flag enabling or disabling DSC on the port
4752 *
4753 * This function enables DSC on the given Port
4754 * by recalculating its vcpi from pbn provided
4755 * and sets dsc_enable flag to keep track of which
4756 * ports have DSC enabled
4757 *
4758 */
4759 int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
4760 struct drm_dp_mst_port *port,
4761 int pbn, int pbn_div,
4762 bool enable)
> 4763 {
> 4764 struct drm_dp_mst_topology_state *mst_state;
4765 struct drm_dp_vcpi_allocation *pos;
4766 bool found = false;
4767 int vcpi = 0;
4768
4769 mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
4770
4771 if (IS_ERR(mst_state))
4772 return PTR_ERR(mst_state);
4773
4774 list_for_each_entry(pos, &mst_state->vcpis, next) {
4775 if (pos->port == port) {
4776 found = true;
4777 break;
4778 }
4779 }
4780
4781 if (!found) {
4782 DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation in mst state %p\n",
4783 port, mst_state);
4784 return -EINVAL;
4785 }
4786
4787 if (pos->dsc_enabled == enable) {
4788 DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d, returning %d VCPI slots\n",
4789 port, enable, pos->vcpi);
4790 vcpi = pos->vcpi;
4791 }
4792
4793 if (enable) {
4794 vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port, pbn, pbn_div);
4795 DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag, reallocating %d VCPI slots on the port\n",
4796 port, vcpi);
4797 if (vcpi < 0)
4798 return -EINVAL;
4799 }
4800
4801 pos->dsc_enabled = enable;
4802
4803 return vcpi;
4804 }
4805 EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
4806 /**
4807 * drm_dp_mst_atomic_check - Check that the new state of an MST topology in an
4808 * atomic update is valid
4809 * @state: Pointer to the new &struct drm_dp_mst_topology_state
4810 *
4811 * Checks the given topology state for an atomic update to ensure that it's
4812 * valid. This includes checking whether there's enough bandwidth to support
4813 * the new VCPI allocations in the atomic update.
4814 *
4815 * Any atomic drivers supporting DP MST must make sure to call this after
4816 * checking the rest of their state in their
4817 * &drm_mode_config_funcs.atomic_check() callback.
4818 *
4819 * See also:
4820 * drm_dp_atomic_find_vcpi_slots()
4821 * drm_dp_atomic_release_vcpi_slots()
4822 *
4823 * Returns:
4824 *
4825 * 0 if the new state is valid, negative error code otherwise.
4826 */
4827 int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
4828 {
4829 struct drm_dp_mst_topology_mgr *mgr;
4830 struct drm_dp_mst_topology_state *mst_state;
4831 int i, ret = 0;
4832
4833 for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) {
4834 ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
4835 if (ret)
4836 break;
4837 }
4838
4839 return ret;
4840 }
4841 EXPORT_SYMBOL(drm_dp_mst_atomic_check);
4842
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 7371 bytes --]
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
2019-12-03 14:35 ` mikita.lipski
(?)
@ 2019-12-03 22:40 ` kbuild test robot
-1 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 22:40 UTC (permalink / raw)
To: mikita.lipski
Cc: Manasi Navare, Mikita Lipski, kbuild-all, dri-devel, amd-gfx
[-- Attachment #1: Type: text/plain, Size: 18033 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
>> drivers/gpu/drm/drm_dp_mst_topology.c:4820: warning: Function parameter or member 'mgr' not described in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4820: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4886: warning: Function parameter or member 'port' not described in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4886: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +4820 drivers/gpu/drm/drm_dp_mst_topology.c
4804
4805 /**
4806 * drm_dp_mst_add_affected_dsc_crtcs
4807 * @state: Pointer to the new &struct drm_dp_mst_topology_state
4808 * @port: Pointer tothe port of connector with new state
4809 *
4810 * Whenever there is a change in mst topology
4811 * DSC configuration would have to be recalculated
4812 * therefore we need to trigger modeset on all affected
4813 * CRTCs in that topology
4814 *
4815 * See also:
4816 * drm_dp_mst_atomic_enable_dsc()
4817 */
4818 int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr)
> 4819 {
> 4820 struct drm_dp_mst_topology_state *mst_state;
4821 struct drm_dp_vcpi_allocation *pos;
4822 struct drm_connector *connector;
4823 struct drm_connector_state *conn_state;
4824 struct drm_crtc *crtc;
4825 struct drm_crtc_state *crtc_state;
4826
4827 if (!mgr) {
4828 DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer is pointing to NULL\n", mgr);
4829 return -EINVAL;
4830 }
4831
4832 mst_state = drm_atomic_get_mst_topology_state(state, mgr);
4833
4834 list_for_each_entry(pos, &mst_state->vcpis, next) {
4835
4836 connector = pos->port->connector;
4837
4838 if (!connector)
4839 return -EINVAL;
4840
4841 conn_state = drm_atomic_get_connector_state(state, connector);
4842
4843 if (IS_ERR(conn_state))
4844 return PTR_ERR(conn_state);
4845
4846 crtc = conn_state->crtc;
4847
4848 if (!crtc)
4849 return -EINVAL;
4850
4851 if (!drm_dp_mst_dsc_aux_for_port(pos->port))
4852 continue;
4853
4854 crtc_state = drm_atomic_get_crtc_state(mst_state->base.state, crtc);
4855
4856 if (IS_ERR(crtc_state))
4857 return PTR_ERR(crtc_state);
4858
4859 DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on CRTC %p\n", mgr, crtc);
4860
4861 crtc_state->mode_changed = true;
4862 }
4863 return 0;
4864 }
4865 EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
4866
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 7371 bytes --]
[-- Attachment #3: Type: text/plain, Size: 159 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
@ 2019-12-03 22:40 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 22:40 UTC (permalink / raw)
To: mikita.lipski
Cc: Manasi Navare, Mikita Lipski, kbuild-all, dri-devel, amd-gfx
[-- Attachment #1: Type: text/plain, Size: 18033 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
>> drivers/gpu/drm/drm_dp_mst_topology.c:4820: warning: Function parameter or member 'mgr' not described in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4820: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4886: warning: Function parameter or member 'port' not described in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4886: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +4820 drivers/gpu/drm/drm_dp_mst_topology.c
4804
4805 /**
4806 * drm_dp_mst_add_affected_dsc_crtcs
4807 * @state: Pointer to the new &struct drm_dp_mst_topology_state
4808 * @port: Pointer tothe port of connector with new state
4809 *
4810 * Whenever there is a change in mst topology
4811 * DSC configuration would have to be recalculated
4812 * therefore we need to trigger modeset on all affected
4813 * CRTCs in that topology
4814 *
4815 * See also:
4816 * drm_dp_mst_atomic_enable_dsc()
4817 */
4818 int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr)
> 4819 {
> 4820 struct drm_dp_mst_topology_state *mst_state;
4821 struct drm_dp_vcpi_allocation *pos;
4822 struct drm_connector *connector;
4823 struct drm_connector_state *conn_state;
4824 struct drm_crtc *crtc;
4825 struct drm_crtc_state *crtc_state;
4826
4827 if (!mgr) {
4828 DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer is pointing to NULL\n", mgr);
4829 return -EINVAL;
4830 }
4831
4832 mst_state = drm_atomic_get_mst_topology_state(state, mgr);
4833
4834 list_for_each_entry(pos, &mst_state->vcpis, next) {
4835
4836 connector = pos->port->connector;
4837
4838 if (!connector)
4839 return -EINVAL;
4840
4841 conn_state = drm_atomic_get_connector_state(state, connector);
4842
4843 if (IS_ERR(conn_state))
4844 return PTR_ERR(conn_state);
4845
4846 crtc = conn_state->crtc;
4847
4848 if (!crtc)
4849 return -EINVAL;
4850
4851 if (!drm_dp_mst_dsc_aux_for_port(pos->port))
4852 continue;
4853
4854 crtc_state = drm_atomic_get_crtc_state(mst_state->base.state, crtc);
4855
4856 if (IS_ERR(crtc_state))
4857 return PTR_ERR(crtc_state);
4858
4859 DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on CRTC %p\n", mgr, crtc);
4860
4861 crtc_state->mode_changed = true;
4862 }
4863 return 0;
4864 }
4865 EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
4866
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
[-- Attachment #2: .config.gz --]
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[-- Attachment #3: Type: text/plain, Size: 153 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
@ 2019-12-03 22:40 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-03 22:40 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 18245 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
sound/soc/soc-core.c:2509: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai'
include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
include/net/sock.h:2454: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
include/net/sock.h:2454: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
include/linux/netdevice.h:1779: warning: bad line: spinlock
include/linux/netdevice.h:2077: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device'
include/linux/netdevice.h:2077: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child'
drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get'
drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc'
drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr'
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap'
include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
kernel/futex.c:1187: warning: Function parameter or member 'ret' not described in 'wait_for_owner_exiting'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port'
>> drivers/gpu/drm/drm_dp_mst_topology.c:4820: warning: Function parameter or member 'mgr' not described in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4820: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4886: warning: Function parameter or member 'port' not described in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4886: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
drivers/gpu/drm/drm_dp_mst_topology.c:4819: warning: Excess function parameter 'port' description in 'drm_dp_mst_add_affected_dsc_crtcs'
drivers/gpu/drm/drm_dp_mst_topology.c:4885: warning: Excess function parameter 'pointer' description in 'drm_dp_mst_atomic_enable_dsc'
include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters'
include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops'
include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta'
include/linux/devfreq.h:181: warning: Function parameter or member 'last_status' not described in 'devfreq'
drivers/devfreq/devfreq.c:1708: warning: bad line: - Resource-managed devfreq_register_notifier()
drivers/devfreq/devfreq.c:1744: warning: bad line: - Resource-managed devfreq_unregister_notifier()
drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev'
drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev'
Documentation/admin-guide/xfs.rst:257: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short.
vim +4820 drivers/gpu/drm/drm_dp_mst_topology.c
4804
4805 /**
4806 * drm_dp_mst_add_affected_dsc_crtcs
4807 * @state: Pointer to the new &struct drm_dp_mst_topology_state
4808 * @port: Pointer tothe port of connector with new state
4809 *
4810 * Whenever there is a change in mst topology
4811 * DSC configuration would have to be recalculated
4812 * therefore we need to trigger modeset on all affected
4813 * CRTCs in that topology
4814 *
4815 * See also:
4816 * drm_dp_mst_atomic_enable_dsc()
4817 */
4818 int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr)
> 4819 {
> 4820 struct drm_dp_mst_topology_state *mst_state;
4821 struct drm_dp_vcpi_allocation *pos;
4822 struct drm_connector *connector;
4823 struct drm_connector_state *conn_state;
4824 struct drm_crtc *crtc;
4825 struct drm_crtc_state *crtc_state;
4826
4827 if (!mgr) {
4828 DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer is pointing to NULL\n", mgr);
4829 return -EINVAL;
4830 }
4831
4832 mst_state = drm_atomic_get_mst_topology_state(state, mgr);
4833
4834 list_for_each_entry(pos, &mst_state->vcpis, next) {
4835
4836 connector = pos->port->connector;
4837
4838 if (!connector)
4839 return -EINVAL;
4840
4841 conn_state = drm_atomic_get_connector_state(state, connector);
4842
4843 if (IS_ERR(conn_state))
4844 return PTR_ERR(conn_state);
4845
4846 crtc = conn_state->crtc;
4847
4848 if (!crtc)
4849 return -EINVAL;
4850
4851 if (!drm_dp_mst_dsc_aux_for_port(pos->port))
4852 continue;
4853
4854 crtc_state = drm_atomic_get_crtc_state(mst_state->base.state, crtc);
4855
4856 if (IS_ERR(crtc_state))
4857 return PTR_ERR(crtc_state);
4858
4859 DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on CRTC %p\n", mgr, crtc);
4860
4861 crtc_state->mode_changed = true;
4862 }
4863 return 0;
4864 }
4865 EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
4866
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 7371 bytes --]
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-05 19:28 ` Harry Wentland
-1 siblings, 0 replies; 70+ messages in thread
From: Harry Wentland @ 2019-12-05 19:28 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Jerry Zuo, dri-devel
On 2019-12-03 9:35 a.m., mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Adding PBN attribute to drm_dp_vcpi_allocation structure to
> keep track of how much bandwidth each Port requires.
> Adding drm_dp_mst_atomic_check_bw_limit to verify that
> state's bandwidth needs doesn't exceed available bandwidth.
> The funtion is called in drm_dp_mst_atomic_check after
> drm_dp_mst_atomic_check_topology_state to fully verify that
> the proposed topology is supported.
>
> Cc: Jerry Zuo <Jerry.Zuo@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 67 ++++++++++++++++++++++++++-
> include/drm/drm_dp_mst_helper.h | 1 +
> 2 files changed, 66 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5e549f48ffb8..76bcbb4cd8b4 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4052,7 +4052,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> {
> struct drm_dp_mst_topology_state *topology_state;
> struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
> - int prev_slots, req_slots;
> + int prev_slots, prev_bw, req_slots, ret;
>
'ret' is unused here.
Harry
> topology_state = drm_atomic_get_mst_topology_state(state, mgr);
> if (IS_ERR(topology_state))
> @@ -4063,6 +4063,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> if (pos->port == port) {
> vcpi = pos;
> prev_slots = vcpi->vcpi;
> + prev_bw = vcpi->pbn;
>
> /*
> * This should never happen, unless the driver tries
> @@ -4078,8 +4079,10 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> break;
> }
> }
> - if (!vcpi)
> + if (!vcpi) {
> prev_slots = 0;
> + prev_bw = 0;
> + }
>
> if (pbn_div <= 0)
> pbn_div = mgr->pbn_div;
> @@ -4089,6 +4092,9 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
> port->connector->base.id, port->connector->name,
> port, prev_slots, req_slots);
> + DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n",
> + port->connector->base.id, port->connector->name,
> + port, prev_bw, pbn);
>
> /* Add the new allocation to the state */
> if (!vcpi) {
> @@ -4101,6 +4107,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> list_add(&vcpi->next, &topology_state->vcpis);
> }
> vcpi->vcpi = req_slots;
> + vcpi->pbn = pbn;
>
> return req_slots;
> }
> @@ -4703,6 +4710,59 @@ static void drm_dp_mst_destroy_state(struct drm_private_obj *obj,
> kfree(mst_state);
> }
>
> +static bool drm_dp_mst_port_downstream_of_branch(struct drm_dp_mst_port *port,
> + struct drm_dp_mst_branch *branch)
> +{
> + while (port->parent) {
> + if (port->parent == branch)
> + return true;
> +
> + if (port->parent->port_parent)
> + port = port->parent->port_parent;
> + else
> + break;
> + }
> + return false;
> +}
> +
> +static inline
> +int drm_dp_mst_atomic_check_bw_limit(struct drm_dp_mst_branch *branch,
> + struct drm_dp_mst_topology_state *mst_state)
> +{
> + struct drm_dp_mst_port *port;
> + struct drm_dp_vcpi_allocation *vcpi;
> + int pbn_limit = 0, pbn_used = 0;
> +
> + list_for_each_entry(port, &branch->ports, next) {
> + if (port->mstb) {
> + if (drm_dp_mst_atomic_check_bw_limit(port->mstb, mst_state))
> + return -EINVAL;
> + }
> + if (port->available_pbn > 0)
> + pbn_limit = port->available_pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch has %d PBN available\n",
> + branch,
> + pbn_limit);
> +
> + list_for_each_entry(vcpi, &mst_state->vcpis, next) {
> + if (!vcpi->pbn)
> + continue;
> +
> + if (drm_dp_mst_port_downstream_of_branch(vcpi->port, branch))
> + pbn_used += vcpi->pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch used %d PBN\n",
> + branch,
> + pbn_used);
> + if (pbn_used > pbn_limit) {
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] No available bandwidth\n",
> + branch);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> static inline int
> drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_topology_state *mst_state)
> @@ -4834,6 +4894,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
> ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
> if (ret)
> break;
> + ret = drm_dp_mst_atomic_check_bw_limit(mgr->mst_primary, mst_state);
> + if (ret)
> + break;
> }
>
> return ret;
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 830c94b7f45d..2919d9776af3 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -502,6 +502,7 @@ struct drm_dp_payload {
> struct drm_dp_vcpi_allocation {
> struct drm_dp_mst_port *port;
> int vcpi;
> + int pbn;
> bool dsc_enabled;
> struct list_head next;
> };
>
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check
@ 2019-12-05 19:28 ` Harry Wentland
0 siblings, 0 replies; 70+ messages in thread
From: Harry Wentland @ 2019-12-05 19:28 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Jerry Zuo, Harry Wentland, dri-devel
On 2019-12-03 9:35 a.m., mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Adding PBN attribute to drm_dp_vcpi_allocation structure to
> keep track of how much bandwidth each Port requires.
> Adding drm_dp_mst_atomic_check_bw_limit to verify that
> state's bandwidth needs doesn't exceed available bandwidth.
> The funtion is called in drm_dp_mst_atomic_check after
> drm_dp_mst_atomic_check_topology_state to fully verify that
> the proposed topology is supported.
>
> Cc: Jerry Zuo <Jerry.Zuo@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 67 ++++++++++++++++++++++++++-
> include/drm/drm_dp_mst_helper.h | 1 +
> 2 files changed, 66 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5e549f48ffb8..76bcbb4cd8b4 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4052,7 +4052,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> {
> struct drm_dp_mst_topology_state *topology_state;
> struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
> - int prev_slots, req_slots;
> + int prev_slots, prev_bw, req_slots, ret;
>
'ret' is unused here.
Harry
> topology_state = drm_atomic_get_mst_topology_state(state, mgr);
> if (IS_ERR(topology_state))
> @@ -4063,6 +4063,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> if (pos->port == port) {
> vcpi = pos;
> prev_slots = vcpi->vcpi;
> + prev_bw = vcpi->pbn;
>
> /*
> * This should never happen, unless the driver tries
> @@ -4078,8 +4079,10 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> break;
> }
> }
> - if (!vcpi)
> + if (!vcpi) {
> prev_slots = 0;
> + prev_bw = 0;
> + }
>
> if (pbn_div <= 0)
> pbn_div = mgr->pbn_div;
> @@ -4089,6 +4092,9 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
> port->connector->base.id, port->connector->name,
> port, prev_slots, req_slots);
> + DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n",
> + port->connector->base.id, port->connector->name,
> + port, prev_bw, pbn);
>
> /* Add the new allocation to the state */
> if (!vcpi) {
> @@ -4101,6 +4107,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
> list_add(&vcpi->next, &topology_state->vcpis);
> }
> vcpi->vcpi = req_slots;
> + vcpi->pbn = pbn;
>
> return req_slots;
> }
> @@ -4703,6 +4710,59 @@ static void drm_dp_mst_destroy_state(struct drm_private_obj *obj,
> kfree(mst_state);
> }
>
> +static bool drm_dp_mst_port_downstream_of_branch(struct drm_dp_mst_port *port,
> + struct drm_dp_mst_branch *branch)
> +{
> + while (port->parent) {
> + if (port->parent == branch)
> + return true;
> +
> + if (port->parent->port_parent)
> + port = port->parent->port_parent;
> + else
> + break;
> + }
> + return false;
> +}
> +
> +static inline
> +int drm_dp_mst_atomic_check_bw_limit(struct drm_dp_mst_branch *branch,
> + struct drm_dp_mst_topology_state *mst_state)
> +{
> + struct drm_dp_mst_port *port;
> + struct drm_dp_vcpi_allocation *vcpi;
> + int pbn_limit = 0, pbn_used = 0;
> +
> + list_for_each_entry(port, &branch->ports, next) {
> + if (port->mstb) {
> + if (drm_dp_mst_atomic_check_bw_limit(port->mstb, mst_state))
> + return -EINVAL;
> + }
> + if (port->available_pbn > 0)
> + pbn_limit = port->available_pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch has %d PBN available\n",
> + branch,
> + pbn_limit);
> +
> + list_for_each_entry(vcpi, &mst_state->vcpis, next) {
> + if (!vcpi->pbn)
> + continue;
> +
> + if (drm_dp_mst_port_downstream_of_branch(vcpi->port, branch))
> + pbn_used += vcpi->pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch used %d PBN\n",
> + branch,
> + pbn_used);
> + if (pbn_used > pbn_limit) {
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] No available bandwidth\n",
> + branch);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> static inline int
> drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_topology_state *mst_state)
> @@ -4834,6 +4894,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
> ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
> if (ret)
> break;
> + ret = drm_dp_mst_atomic_check_bw_limit(mgr->mst_primary, mst_state);
> + if (ret)
> + break;
> }
>
> return ret;
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 830c94b7f45d..2919d9776af3 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -502,6 +502,7 @@ struct drm_dp_payload {
> struct drm_dp_vcpi_allocation {
> struct drm_dp_mst_port *port;
> int vcpi;
> + int pbn;
> bool dsc_enabled;
> struct list_head next;
> };
>
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amd-gfx mailing list
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^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
2019-12-03 14:35 ` mikita.lipski
(?)
@ 2019-12-06 0:22 ` kbuild test robot
-1 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-06 0:22 UTC (permalink / raw)
To: mikita.lipski
Cc: David Francis, Mikita Lipski, kbuild-all, dri-devel, amd-gfx
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 drm-exynos/exynos-drm-next v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-91-g817270f-dirty
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c:28:43: sparse: sparse: not enough arguments for function drm_dp_calc_pbn_mode
vim +28 drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
7cbce45d624322 Lyude Paul 2019-09-03 13
7cbce45d624322 Lyude Paul 2019-09-03 14 int igt_dp_mst_calc_pbn_mode(void *ignored)
7cbce45d624322 Lyude Paul 2019-09-03 15 {
7cbce45d624322 Lyude Paul 2019-09-03 16 int pbn, i;
7cbce45d624322 Lyude Paul 2019-09-03 17 const struct {
7cbce45d624322 Lyude Paul 2019-09-03 18 int rate;
7cbce45d624322 Lyude Paul 2019-09-03 19 int bpp;
7cbce45d624322 Lyude Paul 2019-09-03 20 int expected;
7cbce45d624322 Lyude Paul 2019-09-03 21 } test_params[] = {
7cbce45d624322 Lyude Paul 2019-09-03 22 { 154000, 30, 689 },
7cbce45d624322 Lyude Paul 2019-09-03 23 { 234000, 30, 1047 },
7cbce45d624322 Lyude Paul 2019-09-03 24 { 297000, 24, 1063 },
7cbce45d624322 Lyude Paul 2019-09-03 25 };
7cbce45d624322 Lyude Paul 2019-09-03 26
7cbce45d624322 Lyude Paul 2019-09-03 27 for (i = 0; i < ARRAY_SIZE(test_params); i++) {
7cbce45d624322 Lyude Paul 2019-09-03 @28 pbn = drm_dp_calc_pbn_mode(test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03 29 test_params[i].bpp);
7cbce45d624322 Lyude Paul 2019-09-03 30 FAIL(pbn != test_params[i].expected,
7cbce45d624322 Lyude Paul 2019-09-03 31 "Expected PBN %d for clock %d bpp %d, got %d\n",
7cbce45d624322 Lyude Paul 2019-09-03 32 test_params[i].expected, test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03 33 test_params[i].bpp, pbn);
7cbce45d624322 Lyude Paul 2019-09-03 34 }
7cbce45d624322 Lyude Paul 2019-09-03 35
7cbce45d624322 Lyude Paul 2019-09-03 36 return 0;
7cbce45d624322 Lyude Paul 2019-09-03 37 }
2f015ec6eab693 Lyude Paul 2019-09-03 38
:::::: The code at line 28 was first introduced by commit
:::::: 7cbce45d6243225914b5c967b4ee927a2327842a drm/dp_mst: Move test_calc_pbn_mode() into an actual selftest
:::::: TO: Lyude Paul <lyude@redhat.com>
:::::: CC: Lyude Paul <lyude@redhat.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
@ 2019-12-06 0:22 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-06 0:22 UTC (permalink / raw)
To: mikita.lipski
Cc: David Francis, Mikita Lipski, kbuild-all, dri-devel, amd-gfx
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 drm-exynos/exynos-drm-next v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-91-g817270f-dirty
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c:28:43: sparse: sparse: not enough arguments for function drm_dp_calc_pbn_mode
vim +28 drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
7cbce45d624322 Lyude Paul 2019-09-03 13
7cbce45d624322 Lyude Paul 2019-09-03 14 int igt_dp_mst_calc_pbn_mode(void *ignored)
7cbce45d624322 Lyude Paul 2019-09-03 15 {
7cbce45d624322 Lyude Paul 2019-09-03 16 int pbn, i;
7cbce45d624322 Lyude Paul 2019-09-03 17 const struct {
7cbce45d624322 Lyude Paul 2019-09-03 18 int rate;
7cbce45d624322 Lyude Paul 2019-09-03 19 int bpp;
7cbce45d624322 Lyude Paul 2019-09-03 20 int expected;
7cbce45d624322 Lyude Paul 2019-09-03 21 } test_params[] = {
7cbce45d624322 Lyude Paul 2019-09-03 22 { 154000, 30, 689 },
7cbce45d624322 Lyude Paul 2019-09-03 23 { 234000, 30, 1047 },
7cbce45d624322 Lyude Paul 2019-09-03 24 { 297000, 24, 1063 },
7cbce45d624322 Lyude Paul 2019-09-03 25 };
7cbce45d624322 Lyude Paul 2019-09-03 26
7cbce45d624322 Lyude Paul 2019-09-03 27 for (i = 0; i < ARRAY_SIZE(test_params); i++) {
7cbce45d624322 Lyude Paul 2019-09-03 @28 pbn = drm_dp_calc_pbn_mode(test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03 29 test_params[i].bpp);
7cbce45d624322 Lyude Paul 2019-09-03 30 FAIL(pbn != test_params[i].expected,
7cbce45d624322 Lyude Paul 2019-09-03 31 "Expected PBN %d for clock %d bpp %d, got %d\n",
7cbce45d624322 Lyude Paul 2019-09-03 32 test_params[i].expected, test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03 33 test_params[i].bpp, pbn);
7cbce45d624322 Lyude Paul 2019-09-03 34 }
7cbce45d624322 Lyude Paul 2019-09-03 35
7cbce45d624322 Lyude Paul 2019-09-03 36 return 0;
7cbce45d624322 Lyude Paul 2019-09-03 37 }
2f015ec6eab693 Lyude Paul 2019-09-03 38
:::::: The code at line 28 was first introduced by commit
:::::: 7cbce45d6243225914b5c967b4ee927a2327842a drm/dp_mst: Move test_calc_pbn_mode() into an actual selftest
:::::: TO: Lyude Paul <lyude@redhat.com>
:::::: CC: Lyude Paul <lyude@redhat.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
@ 2019-12-06 0:22 ` kbuild test robot
0 siblings, 0 replies; 70+ messages in thread
From: kbuild test robot @ 2019-12-06 0:22 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 3247 bytes --]
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 drm-exynos/exynos-drm-next v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-91-g817270f-dirty
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c:28:43: sparse: sparse: not enough arguments for function drm_dp_calc_pbn_mode
vim +28 drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
7cbce45d624322 Lyude Paul 2019-09-03 13
7cbce45d624322 Lyude Paul 2019-09-03 14 int igt_dp_mst_calc_pbn_mode(void *ignored)
7cbce45d624322 Lyude Paul 2019-09-03 15 {
7cbce45d624322 Lyude Paul 2019-09-03 16 int pbn, i;
7cbce45d624322 Lyude Paul 2019-09-03 17 const struct {
7cbce45d624322 Lyude Paul 2019-09-03 18 int rate;
7cbce45d624322 Lyude Paul 2019-09-03 19 int bpp;
7cbce45d624322 Lyude Paul 2019-09-03 20 int expected;
7cbce45d624322 Lyude Paul 2019-09-03 21 } test_params[] = {
7cbce45d624322 Lyude Paul 2019-09-03 22 { 154000, 30, 689 },
7cbce45d624322 Lyude Paul 2019-09-03 23 { 234000, 30, 1047 },
7cbce45d624322 Lyude Paul 2019-09-03 24 { 297000, 24, 1063 },
7cbce45d624322 Lyude Paul 2019-09-03 25 };
7cbce45d624322 Lyude Paul 2019-09-03 26
7cbce45d624322 Lyude Paul 2019-09-03 27 for (i = 0; i < ARRAY_SIZE(test_params); i++) {
7cbce45d624322 Lyude Paul 2019-09-03 @28 pbn = drm_dp_calc_pbn_mode(test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03 29 test_params[i].bpp);
7cbce45d624322 Lyude Paul 2019-09-03 30 FAIL(pbn != test_params[i].expected,
7cbce45d624322 Lyude Paul 2019-09-03 31 "Expected PBN %d for clock %d bpp %d, got %d\n",
7cbce45d624322 Lyude Paul 2019-09-03 32 test_params[i].expected, test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03 33 test_params[i].bpp, pbn);
7cbce45d624322 Lyude Paul 2019-09-03 34 }
7cbce45d624322 Lyude Paul 2019-09-03 35
7cbce45d624322 Lyude Paul 2019-09-03 36 return 0;
7cbce45d624322 Lyude Paul 2019-09-03 37 }
2f015ec6eab693 Lyude Paul 2019-09-03 38
:::::: The code@line 28 was first introduced by commit
:::::: 7cbce45d6243225914b5c967b4ee927a2327842a drm/dp_mst: Move test_calc_pbn_mode() into an actual selftest
:::::: TO: Lyude Paul <lyude@redhat.com>
:::::: CC: Lyude Paul <lyude@redhat.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 04/17] drm/dp_mst: Fill branch->num_ports
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-06 4:30 ` Harry Wentland
-1 siblings, 0 replies; 70+ messages in thread
From: Harry Wentland @ 2019-12-06 4:30 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: David Francis, dri-devel
On 2019-12-03 9:35 a.m., mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> This field on drm_dp_mst_branch was never filled
>
> It is initialized to zero when the port is kzallocced.
> When a port is added to the list, increment num_ports,
> and when a port is removed from the list, decrement num_ports.
>
> v2: remember to decrement on port removal
> v3: don't explicitly init to 0
>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 06aae9b52e8a..d74b767d0fe1 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -2129,6 +2129,7 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb,
> build_mst_prop_path(mstb, port->port_num, proppath, sizeof(proppath));
> port->connector = mgr->cbs->add_connector(mgr, port, proppath);
> if (!port->connector) {
> + mstb->num_ports--;
> ret = -ENOMEM;
> goto error;
> }
> @@ -2256,6 +2257,7 @@ drm_dp_mst_handle_link_address_port(struct drm_dp_mst_branch *mstb,
> mutex_lock(&mgr->lock);
> drm_dp_mst_topology_get_port(port);
> list_add(&port->next, &mstb->ports);
> + mstb->num_ports++;
> mutex_unlock(&mgr->lock);
> }
>
Did you drop the num_ports-- when we do list_del() by accident?
See https://patchwork.freedesktop.org/patch/325600/
Harry
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 04/17] drm/dp_mst: Fill branch->num_ports
@ 2019-12-06 4:30 ` Harry Wentland
0 siblings, 0 replies; 70+ messages in thread
From: Harry Wentland @ 2019-12-06 4:30 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: David Francis, dri-devel
On 2019-12-03 9:35 a.m., mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> This field on drm_dp_mst_branch was never filled
>
> It is initialized to zero when the port is kzallocced.
> When a port is added to the list, increment num_ports,
> and when a port is removed from the list, decrement num_ports.
>
> v2: remember to decrement on port removal
> v3: don't explicitly init to 0
>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 06aae9b52e8a..d74b767d0fe1 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -2129,6 +2129,7 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb,
> build_mst_prop_path(mstb, port->port_num, proppath, sizeof(proppath));
> port->connector = mgr->cbs->add_connector(mgr, port, proppath);
> if (!port->connector) {
> + mstb->num_ports--;
> ret = -ENOMEM;
> goto error;
> }
> @@ -2256,6 +2257,7 @@ drm_dp_mst_handle_link_address_port(struct drm_dp_mst_branch *mstb,
> mutex_lock(&mgr->lock);
> drm_dp_mst_topology_get_port(port);
> list_add(&port->next, &mstb->ports);
> + mstb->num_ports++;
> mutex_unlock(&mgr->lock);
> }
>
Did you drop the num_ports-- when we do list_del() by accident?
See https://patchwork.freedesktop.org/patch/325600/
Harry
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:17 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:17 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: David Francis, dri-devel
This patch still needs to be rebased, and the selftests for the PBN
calculation that got added still need to be updated to reflect the changes for
dsc. The code for PBN calculation changed quite a bit upstream since this
series started.
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> With DSC, bpp can be fractional in multiples of 1/16.
>
> Change drm_dp_calc_pbn_mode to reflect this, adding a new
> parameter bool dsc. When this parameter is true, treat the
> bpp parameter as having units not of bits per pixel, but
> 1/16 of a bit per pixel
>
> v2: Don't add separate function for this
>
> v3: Keep the calculation in a single equation
>
> Cc: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
> drivers/gpu/drm/drm_dp_mst_topology.c | 38 ++++++++++++++++++-
> drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
> drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +-
> drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
> include/drm/drm_dp_mst_helper.h | 3 +-
> 6 files changed, 43 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 455c51c38720..9fc03fc1017d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4967,7 +4967,7 @@ static int dm_encoder_helper_atomic_check(struct
> drm_encoder *encoder,
> is_y420);
> bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
> clock = adjusted_mode->clock;
> - dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock,
> bpp);
> + dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
> dm_new_connector_state->vcpi_slots =
> drm_dp_atomic_find_vcpi_slots(state,
> mst
> _mgr,
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index ae5809a1f19a..261e2c1828c6 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4342,10 +4342,11 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
> * drm_dp_calc_pbn_mode() - Calculate the PBN for a mode.
> * @clock: dot clock for the mode
> * @bpp: bpp for the mode.
> + * @dsc: DSC mode. If true, bpp has units of 1/16 of a bit per pixel
> *
> * This uses the formula in the spec to calculate the PBN value for a mode.
> */
> -int drm_dp_calc_pbn_mode(int clock, int bpp)
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc)
> {
> /*
> * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
> @@ -4356,12 +4357,47 @@ int drm_dp_calc_pbn_mode(int clock, int bpp)
> * peak_kbps *= (1006/1000)
> * peak_kbps *= (64/54)
> * peak_kbps *= 8 convert to bytes
> + *
> + * If the bpp is in units of 1/16, further divide by 16. Put this
> + * factor in the numerator rather than the denominator to avoid
> + * integer overflow
> */
> +
> + if (dsc)
> + return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006 /
> 16),
> + 8 * 54 * 1000 * 1000);
> +
> return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006),
> 8 * 54 * 1000 * 1000);
> +
> }
> EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
>
> +static int test_calc_pbn_mode(void)
> +{
> + int ret;
> + ret = drm_dp_calc_pbn_mode(154000, 30, false);
> + if (ret != 689) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 154000, 30, 689, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(234000, 30, false);
> + if (ret != 1047) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 234000, 30, 1047, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(297000, 24, false);
> + if (ret != 1063) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 297000, 24, 1063, ret);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> +
> /* we want to kick the TX after we've ack the up/down IRQs. */
> static void drm_dp_mst_kick_tx(struct drm_dp_mst_topology_mgr *mgr)
> {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 03d1cba0b696..92be17711287 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct
> intel_encoder *encoder,
> crtc_state->pipe_bpp = bpp;
>
> crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode-
> >crtc_clock,
> - crtc_state->pipe_bpp);
> + crtc_state->pipe_bpp,
> + false);
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp-
> >mst_mgr,
> port, crtc_state->pbn);
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> index 549486f1d937..1c9e23d5a6fd 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> @@ -782,7 +782,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
> const int bpp = connector->display_info.bpc * 3;
> const int clock = crtc_state->adjusted_mode.clock;
>
> - asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp);
> + asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
> diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> index ee28f5b3785e..28eef9282874 100644
> --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> @@ -518,7 +518,7 @@ static bool radeon_mst_mode_fixup(struct drm_encoder
> *encoder,
>
> mst_enc = radeon_encoder->enc_priv;
>
> - mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
> + mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp, false);
>
> mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc-
> >connector->devices;
> DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for
> encoder %d\n",
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index d5fc90b30487..68656913cfe5 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -719,8 +719,7 @@ bool drm_dp_mst_port_has_audio(struct
> drm_dp_mst_topology_mgr *mgr,
> struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct
> drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
>
>
> -int drm_dp_calc_pbn_mode(int clock, int bpp);
> -
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
>
> bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_port *port, int pbn, int
> slots);
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
@ 2019-12-07 0:17 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:17 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: David Francis, dri-devel
This patch still needs to be rebased, and the selftests for the PBN
calculation that got added still need to be updated to reflect the changes for
dsc. The code for PBN calculation changed quite a bit upstream since this
series started.
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> With DSC, bpp can be fractional in multiples of 1/16.
>
> Change drm_dp_calc_pbn_mode to reflect this, adding a new
> parameter bool dsc. When this parameter is true, treat the
> bpp parameter as having units not of bits per pixel, but
> 1/16 of a bit per pixel
>
> v2: Don't add separate function for this
>
> v3: Keep the calculation in a single equation
>
> Cc: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
> drivers/gpu/drm/drm_dp_mst_topology.c | 38 ++++++++++++++++++-
> drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
> drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +-
> drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
> include/drm/drm_dp_mst_helper.h | 3 +-
> 6 files changed, 43 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 455c51c38720..9fc03fc1017d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4967,7 +4967,7 @@ static int dm_encoder_helper_atomic_check(struct
> drm_encoder *encoder,
> is_y420);
> bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
> clock = adjusted_mode->clock;
> - dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock,
> bpp);
> + dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
> dm_new_connector_state->vcpi_slots =
> drm_dp_atomic_find_vcpi_slots(state,
> mst
> _mgr,
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index ae5809a1f19a..261e2c1828c6 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4342,10 +4342,11 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
> * drm_dp_calc_pbn_mode() - Calculate the PBN for a mode.
> * @clock: dot clock for the mode
> * @bpp: bpp for the mode.
> + * @dsc: DSC mode. If true, bpp has units of 1/16 of a bit per pixel
> *
> * This uses the formula in the spec to calculate the PBN value for a mode.
> */
> -int drm_dp_calc_pbn_mode(int clock, int bpp)
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc)
> {
> /*
> * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
> @@ -4356,12 +4357,47 @@ int drm_dp_calc_pbn_mode(int clock, int bpp)
> * peak_kbps *= (1006/1000)
> * peak_kbps *= (64/54)
> * peak_kbps *= 8 convert to bytes
> + *
> + * If the bpp is in units of 1/16, further divide by 16. Put this
> + * factor in the numerator rather than the denominator to avoid
> + * integer overflow
> */
> +
> + if (dsc)
> + return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006 /
> 16),
> + 8 * 54 * 1000 * 1000);
> +
> return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006),
> 8 * 54 * 1000 * 1000);
> +
> }
> EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
>
> +static int test_calc_pbn_mode(void)
> +{
> + int ret;
> + ret = drm_dp_calc_pbn_mode(154000, 30, false);
> + if (ret != 689) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 154000, 30, 689, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(234000, 30, false);
> + if (ret != 1047) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 234000, 30, 1047, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(297000, 24, false);
> + if (ret != 1063) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 297000, 24, 1063, ret);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> +
> /* we want to kick the TX after we've ack the up/down IRQs. */
> static void drm_dp_mst_kick_tx(struct drm_dp_mst_topology_mgr *mgr)
> {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 03d1cba0b696..92be17711287 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct
> intel_encoder *encoder,
> crtc_state->pipe_bpp = bpp;
>
> crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode-
> >crtc_clock,
> - crtc_state->pipe_bpp);
> + crtc_state->pipe_bpp,
> + false);
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp-
> >mst_mgr,
> port, crtc_state->pbn);
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> index 549486f1d937..1c9e23d5a6fd 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> @@ -782,7 +782,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
> const int bpp = connector->display_info.bpc * 3;
> const int clock = crtc_state->adjusted_mode.clock;
>
> - asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp);
> + asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
> diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> index ee28f5b3785e..28eef9282874 100644
> --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> @@ -518,7 +518,7 @@ static bool radeon_mst_mode_fixup(struct drm_encoder
> *encoder,
>
> mst_enc = radeon_encoder->enc_priv;
>
> - mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
> + mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp, false);
>
> mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc-
> >connector->devices;
> DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for
> encoder %d\n",
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index d5fc90b30487..68656913cfe5 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -719,8 +719,7 @@ bool drm_dp_mst_port_has_audio(struct
> drm_dp_mst_topology_mgr *mgr,
> struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct
> drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
>
>
> -int drm_dp_calc_pbn_mode(int clock, int bpp);
> -
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
>
> bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_port *port, int pbn, int
> slots);
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:24 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:24 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: dri-devel
Nice! All I've got is a couple of typos I noticed and one question, this looks
great :)
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Adding a helper function to be called by
> drivers outside of DRM to enable DSC on
> the MST ports.
>
> Function is called to recalculate VCPI allocation
> if DSC is enabled and raise the DSC flag to enable.
> In case of disabling DSC the flag is set to false
> and recalculation of VCPI slots is expected to be done
> in encoder's atomic_check.
>
> v2: squash separate functions into one and call it per
> port
>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 61 +++++++++++++++++++++++++++
> include/drm/drm_dp_mst_helper.h | 5 +++
> 2 files changed, 66 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index f1d883960831..5e549f48ffb8 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4742,6 +4742,67 @@ drm_dp_mst_atomic_check_topology_state(struct
> drm_dp_mst_topology_mgr *mgr,
> return 0;
> }
>
> +/**
> + * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
> + * @state: Pointer to the new drm_atomic_state
> + * @pointer: Pointer to the affected MST Port
Typo here
> + * @pbn: Newly recalculated bw required for link with DSC enabled
> + * @pbn_div: Divider to calculate correct number of pbn per slot
> + * @enable: Boolean flag enabling or disabling DSC on the port
> + *
> + * This function enables DSC on the given Port
> + * by recalculating its vcpi from pbn provided
> + * and sets dsc_enable flag to keep track of which
> + * ports have DSC enabled
> + *
> + */
> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
> + struct drm_dp_mst_port *port,
> + int pbn, int pbn_div,
> + bool enable)
> +{
> + struct drm_dp_mst_topology_state *mst_state;
> + struct drm_dp_vcpi_allocation *pos;
> + bool found = false;
> + int vcpi = 0;
> +
> + mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
> +
> + if (IS_ERR(mst_state))
> + return PTR_ERR(mst_state);
> +
> + list_for_each_entry(pos, &mst_state->vcpis, next) {
> + if (pos->port == port) {
> + found = true;
> + break;
> + }
> + }
> +
> + if (!found) {
> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation
> in mst state %p\n",
> + port, mst_state);
> + return -EINVAL;
> + }
Just double checking-does this handle the case where we're enabling DSC on a
port that didn't previously have a VCPI allocation because it wasn't enabled
previously? Or do we not need to handle that here
Assuming you did the right thing here, with the small typo fixes:
Reviewed-by: Lyude Paul <lyude@redhat.com>
> +
> + if (pos->dsc_enabled == enable) {
> + DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d,
> returning %d VCPI slots\n",
> + port, enable, pos->vcpi);
> + vcpi = pos->vcpi;
> + }
> +
> + if (enable) {
> + vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port,
> pbn, pbn_div);
> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag,
> reallocating %d VCPI slots on the port\n",
> + port, vcpi);
> + if (vcpi < 0)
> + return -EINVAL;
> + }
> +
> + pos->dsc_enabled = enable;
> +
> + return vcpi;
> +}
> +EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
> /**
> * drm_dp_mst_atomic_check - Check that the new state of an MST topology in
> an
> * atomic update is valid
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index 0f813d6346aa..830c94b7f45d 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -502,6 +502,7 @@ struct drm_dp_payload {
> struct drm_dp_vcpi_allocation {
> struct drm_dp_mst_port *port;
> int vcpi;
> + bool dsc_enabled;
> struct list_head next;
> };
>
> @@ -773,6 +774,10 @@ drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state
> *state,
> struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_port *port, int pbn,
> int pbn_div);
> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
> + struct drm_dp_mst_port *port,
> + int pbn, int pbn_div,
> + bool enable);
> int __must_check
> drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
> struct drm_dp_mst_topology_mgr *mgr,
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
@ 2019-12-07 0:24 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:24 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Harry Wentland, dri-devel
Nice! All I've got is a couple of typos I noticed and one question, this looks
great :)
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Adding a helper function to be called by
> drivers outside of DRM to enable DSC on
> the MST ports.
>
> Function is called to recalculate VCPI allocation
> if DSC is enabled and raise the DSC flag to enable.
> In case of disabling DSC the flag is set to false
> and recalculation of VCPI slots is expected to be done
> in encoder's atomic_check.
>
> v2: squash separate functions into one and call it per
> port
>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 61 +++++++++++++++++++++++++++
> include/drm/drm_dp_mst_helper.h | 5 +++
> 2 files changed, 66 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index f1d883960831..5e549f48ffb8 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4742,6 +4742,67 @@ drm_dp_mst_atomic_check_topology_state(struct
> drm_dp_mst_topology_mgr *mgr,
> return 0;
> }
>
> +/**
> + * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
> + * @state: Pointer to the new drm_atomic_state
> + * @pointer: Pointer to the affected MST Port
Typo here
> + * @pbn: Newly recalculated bw required for link with DSC enabled
> + * @pbn_div: Divider to calculate correct number of pbn per slot
> + * @enable: Boolean flag enabling or disabling DSC on the port
> + *
> + * This function enables DSC on the given Port
> + * by recalculating its vcpi from pbn provided
> + * and sets dsc_enable flag to keep track of which
> + * ports have DSC enabled
> + *
> + */
> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
> + struct drm_dp_mst_port *port,
> + int pbn, int pbn_div,
> + bool enable)
> +{
> + struct drm_dp_mst_topology_state *mst_state;
> + struct drm_dp_vcpi_allocation *pos;
> + bool found = false;
> + int vcpi = 0;
> +
> + mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
> +
> + if (IS_ERR(mst_state))
> + return PTR_ERR(mst_state);
> +
> + list_for_each_entry(pos, &mst_state->vcpis, next) {
> + if (pos->port == port) {
> + found = true;
> + break;
> + }
> + }
> +
> + if (!found) {
> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation
> in mst state %p\n",
> + port, mst_state);
> + return -EINVAL;
> + }
Just double checking-does this handle the case where we're enabling DSC on a
port that didn't previously have a VCPI allocation because it wasn't enabled
previously? Or do we not need to handle that here
Assuming you did the right thing here, with the small typo fixes:
Reviewed-by: Lyude Paul <lyude@redhat.com>
> +
> + if (pos->dsc_enabled == enable) {
> + DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d,
> returning %d VCPI slots\n",
> + port, enable, pos->vcpi);
> + vcpi = pos->vcpi;
> + }
> +
> + if (enable) {
> + vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port,
> pbn, pbn_div);
> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag,
> reallocating %d VCPI slots on the port\n",
> + port, vcpi);
> + if (vcpi < 0)
> + return -EINVAL;
> + }
> +
> + pos->dsc_enabled = enable;
> +
> + return vcpi;
> +}
> +EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
> /**
> * drm_dp_mst_atomic_check - Check that the new state of an MST topology in
> an
> * atomic update is valid
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index 0f813d6346aa..830c94b7f45d 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -502,6 +502,7 @@ struct drm_dp_payload {
> struct drm_dp_vcpi_allocation {
> struct drm_dp_mst_port *port;
> int vcpi;
> + bool dsc_enabled;
> struct list_head next;
> };
>
> @@ -773,6 +774,10 @@ drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state
> *state,
> struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_port *port, int pbn,
> int pbn_div);
> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
> + struct drm_dp_mst_port *port,
> + int pbn, int pbn_div,
> + bool enable);
> int __must_check
> drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
> struct drm_dp_mst_topology_mgr *mgr,
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:30 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:30 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Jerry Zuo, dri-devel
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Adding PBN attribute to drm_dp_vcpi_allocation structure to
> keep track of how much bandwidth each Port requires.
> Adding drm_dp_mst_atomic_check_bw_limit to verify that
> state's bandwidth needs doesn't exceed available bandwidth.
> The funtion is called in drm_dp_mst_atomic_check after
> drm_dp_mst_atomic_check_topology_state to fully verify that
> the proposed topology is supported.
>
> Cc: Jerry Zuo <Jerry.Zuo@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 67 ++++++++++++++++++++++++++-
> include/drm/drm_dp_mst_helper.h | 1 +
> 2 files changed, 66 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5e549f48ffb8..76bcbb4cd8b4 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4052,7 +4052,7 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> {
> struct drm_dp_mst_topology_state *topology_state;
> struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
> - int prev_slots, req_slots;
> + int prev_slots, prev_bw, req_slots, ret;
>
> topology_state = drm_atomic_get_mst_topology_state(state, mgr);
> if (IS_ERR(topology_state))
> @@ -4063,6 +4063,7 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> if (pos->port == port) {
> vcpi = pos;
> prev_slots = vcpi->vcpi;
> + prev_bw = vcpi->pbn;
>
> /*
> * This should never happen, unless the driver tries
> @@ -4078,8 +4079,10 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> break;
> }
> }
> - if (!vcpi)
> + if (!vcpi) {
> prev_slots = 0;
> + prev_bw = 0;
> + }
>
> if (pbn_div <= 0)
> pbn_div = mgr->pbn_div;
> @@ -4089,6 +4092,9 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
> port->connector->base.id, port->connector->name,
> port, prev_slots, req_slots);
> + DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n",
> + port->connector->base.id, port->connector->name,
> + port, prev_bw, pbn);
>
> /* Add the new allocation to the state */
> if (!vcpi) {
> @@ -4101,6 +4107,7 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> list_add(&vcpi->next, &topology_state->vcpis);
> }
> vcpi->vcpi = req_slots;
> + vcpi->pbn = pbn;
>
> return req_slots;
> }
> @@ -4703,6 +4710,59 @@ static void drm_dp_mst_destroy_state(struct
> drm_private_obj *obj,
> kfree(mst_state);
> }
>
> +static bool drm_dp_mst_port_downstream_of_branch(struct drm_dp_mst_port
> *port,
> + struct drm_dp_mst_branch
> *branch)
> +{
> + while (port->parent) {
> + if (port->parent == branch)
> + return true;
> +
> + if (port->parent->port_parent)
> + port = port->parent->port_parent;
> + else
> + break;
> + }
> + return false;
> +}
> +
> +static inline
> +int drm_dp_mst_atomic_check_bw_limit(struct drm_dp_mst_branch *branch,
> + struct drm_dp_mst_topology_state
> *mst_state)
> +{
> + struct drm_dp_mst_port *port;
> + struct drm_dp_vcpi_allocation *vcpi;
> + int pbn_limit = 0, pbn_used = 0;
> +
> + list_for_each_entry(port, &branch->ports, next) {
> + if (port->mstb) {
> + if (drm_dp_mst_atomic_check_bw_limit(port->mstb,
> mst_state))
> + return -EINVAL;
> + }
> + if (port->available_pbn > 0)
> + pbn_limit = port->available_pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch has %d PBN available\n",
> + branch,
> + pbn_limit);
Should fix the indenting here
> +
> + list_for_each_entry(vcpi, &mst_state->vcpis, next) {
> + if (!vcpi->pbn)
> + continue;
> +
> + if (drm_dp_mst_port_downstream_of_branch(vcpi->port, branch))
> + pbn_used += vcpi->pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch used %d PBN\n",
> + branch,
> + pbn_used);
optional bikeshed: put branch and pbn_used on the same line
> + if (pbn_used > pbn_limit) {
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] No available bandwidth\n",
> + branch);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> static inline int
> drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_topology_state
> *mst_state)
> @@ -4834,6 +4894,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state
> *state)
> ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
> if (ret)
> break;
We should probably rename drm_dp_mst_atomic_check_topology_state() to
check_payloads or something along those lines
And that's it! This looks awesome, with those small changes consider this:
Reviewed-by: Lyude Paul <lyude@redhat.com>
> + ret = drm_dp_mst_atomic_check_bw_limit(mgr->mst_primary,
> mst_state);
> + if (ret)
> + break;
> }
>
> return ret;
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index 830c94b7f45d..2919d9776af3 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -502,6 +502,7 @@ struct drm_dp_payload {
> struct drm_dp_vcpi_allocation {
> struct drm_dp_mst_port *port;
> int vcpi;
> + int pbn;
> bool dsc_enabled;
> struct list_head next;
> };
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check
@ 2019-12-07 0:30 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:30 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Jerry Zuo, Harry Wentland, dri-devel
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Adding PBN attribute to drm_dp_vcpi_allocation structure to
> keep track of how much bandwidth each Port requires.
> Adding drm_dp_mst_atomic_check_bw_limit to verify that
> state's bandwidth needs doesn't exceed available bandwidth.
> The funtion is called in drm_dp_mst_atomic_check after
> drm_dp_mst_atomic_check_topology_state to fully verify that
> the proposed topology is supported.
>
> Cc: Jerry Zuo <Jerry.Zuo@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 67 ++++++++++++++++++++++++++-
> include/drm/drm_dp_mst_helper.h | 1 +
> 2 files changed, 66 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5e549f48ffb8..76bcbb4cd8b4 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4052,7 +4052,7 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> {
> struct drm_dp_mst_topology_state *topology_state;
> struct drm_dp_vcpi_allocation *pos, *vcpi = NULL;
> - int prev_slots, req_slots;
> + int prev_slots, prev_bw, req_slots, ret;
>
> topology_state = drm_atomic_get_mst_topology_state(state, mgr);
> if (IS_ERR(topology_state))
> @@ -4063,6 +4063,7 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> if (pos->port == port) {
> vcpi = pos;
> prev_slots = vcpi->vcpi;
> + prev_bw = vcpi->pbn;
>
> /*
> * This should never happen, unless the driver tries
> @@ -4078,8 +4079,10 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> break;
> }
> }
> - if (!vcpi)
> + if (!vcpi) {
> prev_slots = 0;
> + prev_bw = 0;
> + }
>
> if (pbn_div <= 0)
> pbn_div = mgr->pbn_div;
> @@ -4089,6 +4092,9 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n",
> port->connector->base.id, port->connector->name,
> port, prev_slots, req_slots);
> + DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n",
> + port->connector->base.id, port->connector->name,
> + port, prev_bw, pbn);
>
> /* Add the new allocation to the state */
> if (!vcpi) {
> @@ -4101,6 +4107,7 @@ int drm_dp_atomic_find_vcpi_slots(struct
> drm_atomic_state *state,
> list_add(&vcpi->next, &topology_state->vcpis);
> }
> vcpi->vcpi = req_slots;
> + vcpi->pbn = pbn;
>
> return req_slots;
> }
> @@ -4703,6 +4710,59 @@ static void drm_dp_mst_destroy_state(struct
> drm_private_obj *obj,
> kfree(mst_state);
> }
>
> +static bool drm_dp_mst_port_downstream_of_branch(struct drm_dp_mst_port
> *port,
> + struct drm_dp_mst_branch
> *branch)
> +{
> + while (port->parent) {
> + if (port->parent == branch)
> + return true;
> +
> + if (port->parent->port_parent)
> + port = port->parent->port_parent;
> + else
> + break;
> + }
> + return false;
> +}
> +
> +static inline
> +int drm_dp_mst_atomic_check_bw_limit(struct drm_dp_mst_branch *branch,
> + struct drm_dp_mst_topology_state
> *mst_state)
> +{
> + struct drm_dp_mst_port *port;
> + struct drm_dp_vcpi_allocation *vcpi;
> + int pbn_limit = 0, pbn_used = 0;
> +
> + list_for_each_entry(port, &branch->ports, next) {
> + if (port->mstb) {
> + if (drm_dp_mst_atomic_check_bw_limit(port->mstb,
> mst_state))
> + return -EINVAL;
> + }
> + if (port->available_pbn > 0)
> + pbn_limit = port->available_pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch has %d PBN available\n",
> + branch,
> + pbn_limit);
Should fix the indenting here
> +
> + list_for_each_entry(vcpi, &mst_state->vcpis, next) {
> + if (!vcpi->pbn)
> + continue;
> +
> + if (drm_dp_mst_port_downstream_of_branch(vcpi->port, branch))
> + pbn_used += vcpi->pbn;
> + }
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] branch used %d PBN\n",
> + branch,
> + pbn_used);
optional bikeshed: put branch and pbn_used on the same line
> + if (pbn_used > pbn_limit) {
> + DRM_DEBUG_ATOMIC("[MST BRANCH:%p] No available bandwidth\n",
> + branch);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> static inline int
> drm_dp_mst_atomic_check_topology_state(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_topology_state
> *mst_state)
> @@ -4834,6 +4894,9 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state
> *state)
> ret = drm_dp_mst_atomic_check_topology_state(mgr, mst_state);
> if (ret)
> break;
We should probably rename drm_dp_mst_atomic_check_topology_state() to
check_payloads or something along those lines
And that's it! This looks awesome, with those small changes consider this:
Reviewed-by: Lyude Paul <lyude@redhat.com>
> + ret = drm_dp_mst_atomic_check_bw_limit(mgr->mst_primary,
> mst_state);
> + if (ret)
> + break;
> }
>
> return ret;
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index 830c94b7f45d..2919d9776af3 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -502,6 +502,7 @@ struct drm_dp_payload {
> struct drm_dp_vcpi_allocation {
> struct drm_dp_mst_port *port;
> int vcpi;
> + int pbn;
> bool dsc_enabled;
> struct list_head next;
> };
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:51 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:51 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Manasi Navare, dri-devel
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> [why]
> Whenever a connector on an MST network is changed or
> undergoes a modeset, the DSC configs for each stream on that
> topology will be recalculated. This can change their required
> bandwidth, requiring a full reprogramming, as though a modeset
> was performed, even if that stream did not change timing.
>
> [how]
> Adding helper to trigger modesets on MST DSC connectors
> by setting mode_changed flag on CRTCs in the same topology
> as affected connector
>
> v2: use drm_dp_mst_dsc_aux_for_port function to verify
> if the port is DSC capable
>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 62 +++++++++++++++++++++++++++
> include/drm/drm_dp_mst_helper.h | 2 +
> 2 files changed, 64 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 76bcbb4cd8b4..fb3710b727cc 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4802,6 +4802,68 @@ drm_dp_mst_atomic_check_topology_state(struct
> drm_dp_mst_topology_mgr *mgr,
> return 0;
> }
>
> +/**
> + * drm_dp_mst_add_affected_dsc_crtcs
> + * @state: Pointer to the new &struct drm_dp_mst_topology_state
> + * @port: Pointer tothe port of connector with new state
> + *
> + * Whenever there is a change in mst topology
> + * DSC configuration would have to be recalculated
> + * therefore we need to trigger modeset on all affected
> + * CRTCs in that topology
> + *
> + * See also:
> + * drm_dp_mst_atomic_enable_dsc()
> + */
> +int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
> struct drm_dp_mst_topology_mgr *mgr)
> +{
> + struct drm_dp_mst_topology_state *mst_state;
> + struct drm_dp_vcpi_allocation *pos;
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *crtc_state;
> +
> + if (!mgr) {
> + DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer
> is pointing to NULL\n", mgr);
> + return -EINVAL;
> + }
I'd get rid of this check, we'll notice pretty easily if it's NULL :P
> +
> + mst_state = drm_atomic_get_mst_topology_state(state, mgr);
Forgot to check IS_ERR(mst_state) here
> +
> + list_for_each_entry(pos, &mst_state->vcpis, next) {
> +
> + connector = pos->port->connector;
> +
> + if (!connector)
> + return -EINVAL;
> +
> + conn_state = drm_atomic_get_connector_state(state, connector);
> +
> + if (IS_ERR(conn_state))
> + return PTR_ERR(conn_state);
> +
> + crtc = conn_state->crtc;
> +
> + if (!crtc)
> + return -EINVAL;
This seems like something that would be an error from a driver using the API
incorrectly, maybe this should be something like
if (WARN_ON(!crtc))
return -EINVAL;
> +
> + if (!drm_dp_mst_dsc_aux_for_port(pos->port))
> + continue;
> +
> + crtc_state = drm_atomic_get_crtc_state(mst_state->base.state,
> crtc);
> +
> + if (IS_ERR(crtc_state))
> + return PTR_ERR(crtc_state);
> +
> + DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on
> CRTC %p\n", mgr, crtc);
This can be wrapped a bit more to fit in 80 chars
> +
> + crtc_state->mode_changed = true;
Nitpick here: I usually try to group assignments and conditional checks on
those assignments unless it makes it more difficult to read, like:
ret = cool_function();
if (ret)
return ret;
But not too big of a deal either way. Won't hold back review
> + }
> + return 0;
> +}
> +EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
> +
> /**
> * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
> * @state: Pointer to the new drm_atomic_state
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index 2919d9776af3..10e9c7049061 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -779,6 +779,8 @@ int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state
> *state,
> struct drm_dp_mst_port *port,
> int pbn, int pbn_div,
> bool enable);
> +int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
> + struct drm_dp_mst_topology_mgr *mgr);
I'd add a __must_check attribute here. With the more important changes
addressed here:
Reviewed-by: Lyude Paul <lyude@redhat.com>
> int __must_check
> drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
> struct drm_dp_mst_topology_mgr *mgr,
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
@ 2019-12-07 0:51 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:51 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Manasi Navare, dri-devel
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> [why]
> Whenever a connector on an MST network is changed or
> undergoes a modeset, the DSC configs for each stream on that
> topology will be recalculated. This can change their required
> bandwidth, requiring a full reprogramming, as though a modeset
> was performed, even if that stream did not change timing.
>
> [how]
> Adding helper to trigger modesets on MST DSC connectors
> by setting mode_changed flag on CRTCs in the same topology
> as affected connector
>
> v2: use drm_dp_mst_dsc_aux_for_port function to verify
> if the port is DSC capable
>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> drivers/gpu/drm/drm_dp_mst_topology.c | 62 +++++++++++++++++++++++++++
> include/drm/drm_dp_mst_helper.h | 2 +
> 2 files changed, 64 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 76bcbb4cd8b4..fb3710b727cc 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4802,6 +4802,68 @@ drm_dp_mst_atomic_check_topology_state(struct
> drm_dp_mst_topology_mgr *mgr,
> return 0;
> }
>
> +/**
> + * drm_dp_mst_add_affected_dsc_crtcs
> + * @state: Pointer to the new &struct drm_dp_mst_topology_state
> + * @port: Pointer tothe port of connector with new state
> + *
> + * Whenever there is a change in mst topology
> + * DSC configuration would have to be recalculated
> + * therefore we need to trigger modeset on all affected
> + * CRTCs in that topology
> + *
> + * See also:
> + * drm_dp_mst_atomic_enable_dsc()
> + */
> +int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
> struct drm_dp_mst_topology_mgr *mgr)
> +{
> + struct drm_dp_mst_topology_state *mst_state;
> + struct drm_dp_vcpi_allocation *pos;
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *crtc_state;
> +
> + if (!mgr) {
> + DRM_DEBUG_ATOMIC("[MST MGR:%p] Passed Topology Manager pointer
> is pointing to NULL\n", mgr);
> + return -EINVAL;
> + }
I'd get rid of this check, we'll notice pretty easily if it's NULL :P
> +
> + mst_state = drm_atomic_get_mst_topology_state(state, mgr);
Forgot to check IS_ERR(mst_state) here
> +
> + list_for_each_entry(pos, &mst_state->vcpis, next) {
> +
> + connector = pos->port->connector;
> +
> + if (!connector)
> + return -EINVAL;
> +
> + conn_state = drm_atomic_get_connector_state(state, connector);
> +
> + if (IS_ERR(conn_state))
> + return PTR_ERR(conn_state);
> +
> + crtc = conn_state->crtc;
> +
> + if (!crtc)
> + return -EINVAL;
This seems like something that would be an error from a driver using the API
incorrectly, maybe this should be something like
if (WARN_ON(!crtc))
return -EINVAL;
> +
> + if (!drm_dp_mst_dsc_aux_for_port(pos->port))
> + continue;
> +
> + crtc_state = drm_atomic_get_crtc_state(mst_state->base.state,
> crtc);
> +
> + if (IS_ERR(crtc_state))
> + return PTR_ERR(crtc_state);
> +
> + DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on
> CRTC %p\n", mgr, crtc);
This can be wrapped a bit more to fit in 80 chars
> +
> + crtc_state->mode_changed = true;
Nitpick here: I usually try to group assignments and conditional checks on
those assignments unless it makes it more difficult to read, like:
ret = cool_function();
if (ret)
return ret;
But not too big of a deal either way. Won't hold back review
> + }
> + return 0;
> +}
> +EXPORT_SYMBOL(drm_dp_mst_add_affected_dsc_crtcs);
> +
> /**
> * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
> * @state: Pointer to the new drm_atomic_state
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index 2919d9776af3..10e9c7049061 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -779,6 +779,8 @@ int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state
> *state,
> struct drm_dp_mst_port *port,
> int pbn, int pbn_div,
> bool enable);
> +int drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
> + struct drm_dp_mst_topology_mgr *mgr);
I'd add a __must_check attribute here. With the more important changes
addressed here:
Reviewed-by: Lyude Paul <lyude@redhat.com>
> int __must_check
> drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
> struct drm_dp_mst_topology_mgr *mgr,
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 15/17] drm/amd/display: Recalculate VCPI slots for new DSC connectors
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:52 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:52 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Manasi Navare, Jerry Zuo, dri-devel
Reviewed-by: Lyude Paul <lyude@redhat.com>
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> [why]
> Since for DSC MST connector's PBN is claculated differently
> due to compression, we have to recalculate both PBN and
> VCPI slots for that connector.
>
> [how]
> The function iterates through all the active streams to
> find, which have DSC enabled, then recalculates PBN for
> it and calls drm_dp_helper_update_vcpi_slots_for_dsc to
> update connector's VCPI slots.
>
> v2: - use drm_dp_mst_atomic_enable_dsc per port to
> enable/disable DSC
>
> v3: - Iterate through connector states from the state passed
> - On each connector state get stream from dc_state,
> instead CRTC state
>
> Cc: Jerry Zuo <Jerry.Zuo@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 76 +++++++++++++++++--
> 1 file changed, 71 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 93a230d956ee..2ac3a2f0b452 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4986,6 +4986,69 @@ const struct drm_encoder_helper_funcs
> amdgpu_dm_encoder_helper_funcs = {
> .atomic_check = dm_encoder_helper_atomic_check
> };
>
> +static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
> + struct dc_state *dc_state)
> +{
> + struct dc_stream_state *stream = NULL;
> + struct drm_connector *connector;
> + struct drm_connector_state *new_con_state, *old_con_state;
> + struct amdgpu_dm_connector *aconnector;
> + struct dm_connector_state *dm_conn_state;
> + int i, j, clock, bpp;
> + int vcpi, pbn_div, pbn = 0;
> +
> + for_each_oldnew_connector_in_state(state, connector, old_con_state,
> new_con_state, i) {
> +
> + aconnector = to_amdgpu_dm_connector(connector);
> +
> + if (!aconnector->port)
> + continue;
> +
> + if (!new_con_state || !new_con_state->crtc)
> + continue;
> +
> + dm_conn_state = to_dm_connector_state(new_con_state);
> +
> + for (j = 0; j < dc_state->stream_count; j++) {
> + stream = dc_state->streams[j];
> + if (!stream)
> + continue;
> +
> + if ((struct amdgpu_dm_connector*)stream-
> >dm_stream_context == aconnector)
> + break;
> +
> + stream = NULL;
> + }
> +
> + if (!stream)
> + continue;
> +
> + if (stream->timing.flags.DSC != 1) {
> + drm_dp_mst_atomic_enable_dsc(state,
> + aconnector->port,
> + dm_conn_state->pbn,
> + 0,
> + false);
> + continue;
> + }
> +
> + pbn_div = dm_mst_get_pbn_divider(stream->link);
> + bpp = stream->timing.dsc_cfg.bits_per_pixel;
> + clock = stream->timing.pix_clk_100hz / 10;
> + pbn = drm_dp_calc_pbn_mode(clock, bpp, true);
> + vcpi = drm_dp_mst_atomic_enable_dsc(state,
> + aconnector->port,
> + pbn, pbn_div,
> + true);
> + if (vcpi < 0)
> + return vcpi;
> +
> + dm_conn_state->pbn = pbn;
> + dm_conn_state->vcpi_slots = vcpi;
> + }
> + return 0;
> +}
> +
> static void dm_drm_plane_reset(struct drm_plane *plane)
> {
> struct dm_plane_state *amdgpu_state = NULL;
> @@ -8022,11 +8085,6 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (ret)
> goto fail;
>
> - /* Perform validation of MST topology in the state*/
> - ret = drm_dp_mst_atomic_check(state);
> - if (ret)
> - goto fail;
> -
> if (state->legacy_cursor_update) {
> /*
> * This is a fast cursor update coming from the plane update
> @@ -8098,6 +8156,10 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (!compute_mst_dsc_configs_for_state(state, dm_state-
> >context))
> goto fail;
>
> + ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state-
> >context);
> + if (ret)
> + goto fail;
> +
> if (dc_validate_global_state(dc, dm_state->context, false) !=
> DC_OK) {
> ret = -EINVAL;
> goto fail;
> @@ -8126,6 +8188,10 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> dc_retain_state(old_dm_state->context);
> }
> }
> + /* Perform validation of MST topology in the state*/
> + ret = drm_dp_mst_atomic_check(state);
> + if (ret)
> + goto fail;
>
> /* Store the overall update type for use later in atomic check. */
> for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 15/17] drm/amd/display: Recalculate VCPI slots for new DSC connectors
@ 2019-12-07 0:52 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:52 UTC (permalink / raw)
To: mikita.lipski, amd-gfx
Cc: Manasi Navare, Jerry Zuo, Harry Wentland, dri-devel
Reviewed-by: Lyude Paul <lyude@redhat.com>
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> [why]
> Since for DSC MST connector's PBN is claculated differently
> due to compression, we have to recalculate both PBN and
> VCPI slots for that connector.
>
> [how]
> The function iterates through all the active streams to
> find, which have DSC enabled, then recalculates PBN for
> it and calls drm_dp_helper_update_vcpi_slots_for_dsc to
> update connector's VCPI slots.
>
> v2: - use drm_dp_mst_atomic_enable_dsc per port to
> enable/disable DSC
>
> v3: - Iterate through connector states from the state passed
> - On each connector state get stream from dc_state,
> instead CRTC state
>
> Cc: Jerry Zuo <Jerry.Zuo@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 76 +++++++++++++++++--
> 1 file changed, 71 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 93a230d956ee..2ac3a2f0b452 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4986,6 +4986,69 @@ const struct drm_encoder_helper_funcs
> amdgpu_dm_encoder_helper_funcs = {
> .atomic_check = dm_encoder_helper_atomic_check
> };
>
> +static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
> + struct dc_state *dc_state)
> +{
> + struct dc_stream_state *stream = NULL;
> + struct drm_connector *connector;
> + struct drm_connector_state *new_con_state, *old_con_state;
> + struct amdgpu_dm_connector *aconnector;
> + struct dm_connector_state *dm_conn_state;
> + int i, j, clock, bpp;
> + int vcpi, pbn_div, pbn = 0;
> +
> + for_each_oldnew_connector_in_state(state, connector, old_con_state,
> new_con_state, i) {
> +
> + aconnector = to_amdgpu_dm_connector(connector);
> +
> + if (!aconnector->port)
> + continue;
> +
> + if (!new_con_state || !new_con_state->crtc)
> + continue;
> +
> + dm_conn_state = to_dm_connector_state(new_con_state);
> +
> + for (j = 0; j < dc_state->stream_count; j++) {
> + stream = dc_state->streams[j];
> + if (!stream)
> + continue;
> +
> + if ((struct amdgpu_dm_connector*)stream-
> >dm_stream_context == aconnector)
> + break;
> +
> + stream = NULL;
> + }
> +
> + if (!stream)
> + continue;
> +
> + if (stream->timing.flags.DSC != 1) {
> + drm_dp_mst_atomic_enable_dsc(state,
> + aconnector->port,
> + dm_conn_state->pbn,
> + 0,
> + false);
> + continue;
> + }
> +
> + pbn_div = dm_mst_get_pbn_divider(stream->link);
> + bpp = stream->timing.dsc_cfg.bits_per_pixel;
> + clock = stream->timing.pix_clk_100hz / 10;
> + pbn = drm_dp_calc_pbn_mode(clock, bpp, true);
> + vcpi = drm_dp_mst_atomic_enable_dsc(state,
> + aconnector->port,
> + pbn, pbn_div,
> + true);
> + if (vcpi < 0)
> + return vcpi;
> +
> + dm_conn_state->pbn = pbn;
> + dm_conn_state->vcpi_slots = vcpi;
> + }
> + return 0;
> +}
> +
> static void dm_drm_plane_reset(struct drm_plane *plane)
> {
> struct dm_plane_state *amdgpu_state = NULL;
> @@ -8022,11 +8085,6 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (ret)
> goto fail;
>
> - /* Perform validation of MST topology in the state*/
> - ret = drm_dp_mst_atomic_check(state);
> - if (ret)
> - goto fail;
> -
> if (state->legacy_cursor_update) {
> /*
> * This is a fast cursor update coming from the plane update
> @@ -8098,6 +8156,10 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (!compute_mst_dsc_configs_for_state(state, dm_state-
> >context))
> goto fail;
>
> + ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state-
> >context);
> + if (ret)
> + goto fail;
> +
> if (dc_validate_global_state(dc, dm_state->context, false) !=
> DC_OK) {
> ret = -EINVAL;
> goto fail;
> @@ -8126,6 +8188,10 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> dc_retain_state(old_dm_state->context);
> }
> }
> + /* Perform validation of MST topology in the state*/
> + ret = drm_dp_mst_atomic_check(state);
> + if (ret)
> + goto fail;
>
> /* Store the overall update type for use later in atomic check. */
> for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 17/17] drm/amd/display: Trigger modesets on MST DSC connectors
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:53 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:53 UTC (permalink / raw)
To: mikita.lipski, amd-gfx
Cc: Leo Li, David Francis, Nicholas Kazlauskas, dri-devel
Reviewed-by: Lyude Paul <lyude@redhat.com>
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Whenever a connector on an MST network is attached, detached, or
> undergoes a modeset, the DSC configs for each stream on that
> topology will be recalculated. This can change their required
> bandwidth, requiring a full reprogramming, as though a modeset
> was performed, even if that stream did not change timing.
>
> Therefore, whenever a crtc has drm_atomic_crtc_needs_modeset,
> for each crtc that shares a MST topology with that stream and
> supports DSC, add that crtc (and all affected connectors and
> planes) to the atomic state and set mode_changed on its state
>
> v2: Do this check only on Navi and before adding connectors
> and planes on modesetting crtcs
>
> Cc: Leo Li <sunpeng.li@amd.com>
> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 33 +++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 2ac3a2f0b452..909665427110 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -7930,6 +7930,29 @@ dm_determine_update_type_for_commit(struct
> amdgpu_display_manager *dm,
> return ret;
> }
>
> +static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state,
> struct drm_crtc *crtc)
> +{
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
> + struct amdgpu_dm_connector *aconnector = NULL;
> + int i;
> + for_each_new_connector_in_state(state, connector, conn_state, i) {
> + if (conn_state->crtc != crtc)
> + continue;
> +
> + aconnector = to_amdgpu_dm_connector(connector);
> + if (!aconnector->port)
> + aconnector = NULL;
> + else
> + break;
> + }
> +
> + if (!aconnector)
> + return 0;
> +
> + return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_mgr);
> +}
> +
> /**
> * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
> * @dev: The DRM device
> @@ -7982,6 +8005,16 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (ret)
> goto fail;
>
> + if (adev->asic_type >= CHIP_NAVI10) {
> + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
> new_crtc_state, i) {
> + if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
> + ret = add_affected_mst_dsc_crtcs(state, crtc);
> + if (ret)
> + goto fail;
> + }
> + }
> + }
> +
> for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
> new_crtc_state, i) {
> if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
> !new_crtc_state->color_mgmt_changed &&
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 17/17] drm/amd/display: Trigger modesets on MST DSC connectors
@ 2019-12-07 0:53 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:53 UTC (permalink / raw)
To: mikita.lipski, amd-gfx
Cc: Leo Li, David Francis, Nicholas Kazlauskas, dri-devel
Reviewed-by: Lyude Paul <lyude@redhat.com>
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: Mikita Lipski <mikita.lipski@amd.com>
>
> Whenever a connector on an MST network is attached, detached, or
> undergoes a modeset, the DSC configs for each stream on that
> topology will be recalculated. This can change their required
> bandwidth, requiring a full reprogramming, as though a modeset
> was performed, even if that stream did not change timing.
>
> Therefore, whenever a crtc has drm_atomic_crtc_needs_modeset,
> for each crtc that shares a MST topology with that stream and
> supports DSC, add that crtc (and all affected connectors and
> planes) to the atomic state and set mode_changed on its state
>
> v2: Do this check only on Navi and before adding connectors
> and planes on modesetting crtcs
>
> Cc: Leo Li <sunpeng.li@amd.com>
> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 33 +++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 2ac3a2f0b452..909665427110 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -7930,6 +7930,29 @@ dm_determine_update_type_for_commit(struct
> amdgpu_display_manager *dm,
> return ret;
> }
>
> +static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state,
> struct drm_crtc *crtc)
> +{
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
> + struct amdgpu_dm_connector *aconnector = NULL;
> + int i;
> + for_each_new_connector_in_state(state, connector, conn_state, i) {
> + if (conn_state->crtc != crtc)
> + continue;
> +
> + aconnector = to_amdgpu_dm_connector(connector);
> + if (!aconnector->port)
> + aconnector = NULL;
> + else
> + break;
> + }
> +
> + if (!aconnector)
> + return 0;
> +
> + return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_mgr);
> +}
> +
> /**
> * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
> * @dev: The DRM device
> @@ -7982,6 +8005,16 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (ret)
> goto fail;
>
> + if (adev->asic_type >= CHIP_NAVI10) {
> + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
> new_crtc_state, i) {
> + if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
> + ret = add_affected_mst_dsc_crtcs(state, crtc);
> + if (ret)
> + goto fail;
> + }
> + }
> + }
> +
> for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
> new_crtc_state, i) {
> if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
> !new_crtc_state->color_mgmt_changed &&
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 14/17] drm/amd/display: MST DSC compute fair share
2019-12-03 14:35 ` mikita.lipski
@ 2019-12-07 0:53 ` Lyude Paul
-1 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:53 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Manasi Navare, David Francis, dri-devel
I've still gotta do a little bit of thinking on this one, but I'll make sure
to get back to you about this patch on monday. In the mean time, everything
else looks great! Thanks for the good work :)
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> If there is limited link bandwidth on a MST network,
> it must be divided fairly between the streams on that network
>
> Implement an algorithm to determine the correct DSC config
> for each stream
>
> The algorithm:
> This
> [ ] ( )
> represents the range of bandwidths possible for a given stream.
> The [] area represents the range of DSC configs, and the ()
> represents no DSC. The bandwidth used increases from left to right.
>
> First, try disabling DSC on all streams
> [ ] (|)
> [ ] (|)
> Check this against the bandwidth limits of the link and each branch
> (including each endpoint). If it passes, the job is done
>
> Second, try maximum DSC compression on all streams
> that support DSC
> [| ] ( )
> [| ] ( )
> If this does not pass, then enabling this combination of streams
> is impossible
>
> Otherwise, divide the remaining bandwidth evenly amongst the streams
> [ | ] ( )
> [ | ] ( )
>
> If one or more of the streams reach minimum compression, evenly
> divide the reamining bandwidth amongst the remaining streams
> [ |] ( )
> [ |] ( )
> [ | ] ( )
> [ | ] ( )
>
> If all streams can reach minimum compression, disable compression
> greedily
> [ |] ( )
> [ |] ( )
> [ ] (|)
>
> Perform this algorithm on each full update, on each MST link
> with at least one DSC stream on it
>
> After the configs are computed, call
> dcn20_add_dsc_to_stream_resource on each stream with DSC enabled.
> It is only after all streams are created that we can know which
> of them will need DSC.
>
> Do all of this at the end of amdgpu atomic check. If it fails,
> fail check; This combination of timings cannot be supported.
>
> v2: Use drm_dp_mst_atomic_check to validate bw for certain dsc
> configurations
>
> v3: Use dc_dsc_policy structure to get min and max bpp rate
> for DSC configuration
>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +
> .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 364 ++++++++++++++++++
> .../display/amdgpu_dm/amdgpu_dm_mst_types.h | 3 +
> .../drm/amd/display/dc/dcn20/dcn20_resource.c | 7 +-
> .../drm/amd/display/dc/dcn20/dcn20_resource.h | 1 +
> 5 files changed, 376 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 753a79734817..93a230d956ee 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -8095,6 +8095,9 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (ret)
> goto fail;
>
> + if (!compute_mst_dsc_configs_for_state(state, dm_state-
> >context))
> + goto fail;
> +
> if (dc_validate_global_state(dc, dm_state->context, false) !=
> DC_OK) {
> ret = -EINVAL;
> goto fail;
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> index c376c8ccd391..6d13d1c33530 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> @@ -40,6 +40,10 @@
> #if defined(CONFIG_DEBUG_FS)
> #include "amdgpu_dm_debugfs.h"
> #endif
> +
> +
> +#include "dc/dcn20/dcn20_resource.h"
> +
> /* #define TRACE_DPCD */
>
> #ifdef TRACE_DPCD
> @@ -499,3 +503,363 @@ int dm_mst_get_pbn_divider(struct dc_link *link)
> return dc_link_bandwidth_kbps(link,
> dc_link_get_link_cap(link)) / (8 * 1000 * 54);
> }
> +
> +struct dsc_mst_fairness_params {
> + struct dc_crtc_timing *timing;
> + struct dc_sink *sink;
> + struct dc_dsc_bw_range bw_range;
> + bool compression_possible;
> + struct drm_dp_mst_port *port;
> +};
> +
> +struct dsc_mst_fairness_vars {
> + int pbn;
> + bool dsc_enabled;
> + int bpp_x16;
> +};
> +
> +static int kbps_to_peak_pbn(int kbps)
> +{
> + u64 peak_kbps = kbps;
> +
> + peak_kbps *= 1006;
> + peak_kbps /= 1000;
> + return (int) DIV_ROUND_UP(peak_kbps * 64, (54 * 8 * 1000));
> +}
> +
> +static void set_dsc_configs_from_fairness_vars(struct
> dsc_mst_fairness_params *params,
> + struct dsc_mst_fairness_vars *vars,
> + int count)
> +{
> + int i;
> +
> + for (i = 0; i < count; i++) {
> + memset(¶ms[i].timing->dsc_cfg, 0, sizeof(params[i].timing-
> >dsc_cfg));
> + if (vars[i].dsc_enabled && dc_dsc_compute_config(
> + params[i].sink->ctx->dc->res_pool-
> >dscs[0],
> + ¶ms[i].sink-
> >sink_dsc_caps.dsc_dec_caps,
> + params[i].sink->ctx->dc-
> >debug.dsc_min_slice_height_override,
> + 0,
> + params[i].timing,
> + ¶ms[i].timing->dsc_cfg)) {
> + params[i].timing->flags.DSC = 1;
> + params[i].timing->dsc_cfg.bits_per_pixel =
> vars[i].bpp_x16;
> + } else {
> + params[i].timing->flags.DSC = 0;
> + }
> + }
> +}
> +
> +static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn)
> +{
> + struct dc_dsc_config dsc_config;
> + u64 kbps;
> +
> + kbps = (u64)pbn * 994 * 8 * 54 / 64;
> + dc_dsc_compute_config(
> + param.sink->ctx->dc->res_pool->dscs[0],
> + ¶m.sink->sink_dsc_caps.dsc_dec_caps,
> + param.sink->ctx->dc-
> >debug.dsc_min_slice_height_override,
> + (int) kbps, param.timing, &dsc_config);
> +
> + return dsc_config.bits_per_pixel;
> +}
> +
> +static void increase_dsc_bpp(struct drm_atomic_state *state,
> + struct dc_link *dc_link,
> + struct dsc_mst_fairness_params *params,
> + struct dsc_mst_fairness_vars *vars,
> + int count)
> +{
> + int i;
> + bool bpp_increased[MAX_PIPES];
> + int initial_slack[MAX_PIPES];
> + int min_initial_slack;
> + int next_index;
> + int remaining_to_increase = 0;
> + int pbn_per_timeslot;
> + int link_timeslots_used;
> + int fair_pbn_alloc;
> +
> + for (i = 0; i < count; i++) {
> + if (vars[i].dsc_enabled) {
> + initial_slack[i] =
> kbps_to_peak_pbn(params[i].bw_range.max_kbps) - vars[i].pbn;
> + bpp_increased[i] = false;
> + remaining_to_increase += 1;
> + } else {
> + initial_slack[i] = 0;
> + bpp_increased[i] = true;
> + }
> + }
> +
> + pbn_per_timeslot = dc_link_bandwidth_kbps(dc_link,
> + dc_link_get_link_cap(dc_link)) / (8 * 1000 * 54);
> +
> + while (remaining_to_increase) {
> + next_index = -1;
> + min_initial_slack = -1;
> + for (i = 0; i < count; i++) {
> + if (!bpp_increased[i]) {
> + if (min_initial_slack == -1 ||
> min_initial_slack > initial_slack[i]) {
> + min_initial_slack = initial_slack[i];
> + next_index = i;
> + }
> + }
> + }
> +
> + if (next_index == -1)
> + break;
> +
> + link_timeslots_used = 0;
> +
> + for (i = 0; i < count; i++)
> + link_timeslots_used += DIV_ROUND_UP(vars[i].pbn,
> pbn_per_timeslot);
> +
> + fair_pbn_alloc = (63 - link_timeslots_used) /
> remaining_to_increase * pbn_per_timeslot;
> +
> + if (initial_slack[next_index] > fair_pbn_alloc) {
> + vars[next_index].pbn += fair_pbn_alloc;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + if (!drm_dp_mst_atomic_check(state)) {
> + vars[next_index].bpp_x16 =
> bpp_x16_from_pbn(params[next_index], vars[next_index].pbn);
> + } else {
> + vars[next_index].pbn -= fair_pbn_alloc;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + }
> + } else {
> + vars[next_index].pbn += initial_slack[next_index];
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + if (!drm_dp_mst_atomic_check(state)) {
> + vars[next_index].bpp_x16 =
> params[next_index].bw_range.max_target_bpp_x16;
> + } else {
> + vars[next_index].pbn -=
> initial_slack[next_index];
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + }
> + }
> +
> + bpp_increased[next_index] = true;
> + remaining_to_increase--;
> + }
> +}
> +
> +static void try_disable_dsc(struct drm_atomic_state *state,
> + struct dc_link *dc_link,
> + struct dsc_mst_fairness_params *params,
> + struct dsc_mst_fairness_vars *vars,
> + int count)
> +{
> + int i;
> + bool tried[MAX_PIPES];
> + int kbps_increase[MAX_PIPES];
> + int max_kbps_increase;
> + int next_index;
> + int remaining_to_try = 0;
> +
> + for (i = 0; i < count; i++) {
> + if (vars[i].dsc_enabled && vars[i].bpp_x16 ==
> params[i].bw_range.max_target_bpp_x16) {
> + kbps_increase[i] = params[i].bw_range.stream_kbps -
> params[i].bw_range.max_kbps;
> + tried[i] = false;
> + remaining_to_try += 1;
> + } else {
> + kbps_increase[i] = 0;
> + tried[i] = true;
> + }
> + }
> +
> + while (remaining_to_try) {
> + next_index = -1;
> + max_kbps_increase = -1;
> + for (i = 0; i < count; i++) {
> + if (!tried[i]) {
> + if (max_kbps_increase == -1 ||
> max_kbps_increase < kbps_increase[i]) {
> + max_kbps_increase = kbps_increase[i];
> + next_index = i;
> + }
> + }
> + }
> +
> + if (next_index == -1)
> + break;
> +
> + vars[next_index].pbn =
> kbps_to_peak_pbn(params[next_index].bw_range.stream_kbps);
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port->mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + 0);
> +
> + if (!drm_dp_mst_atomic_check(state)) {
> + vars[next_index].dsc_enabled = false;
> + vars[next_index].bpp_x16 = 0;
> + } else {
> + vars[next_index].pbn =
> kbps_to_peak_pbn(params[next_index].bw_range.max_kbps);
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port->mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(dc_link))
> ;
> + }
> +
> + tried[next_index] = true;
> + remaining_to_try--;
> + }
> +}
> +
> +static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state
> *state,
> + struct dc_state *dc_state,
> + struct dc_link *dc_link)
> +{
> + int i;
> + struct dc_stream_state *stream;
> + struct dsc_mst_fairness_params params[MAX_PIPES];
> + struct dsc_mst_fairness_vars vars[MAX_PIPES];
> + struct amdgpu_dm_connector *aconnector;
> + int count = 0;
> +
> + memset(params, 0, sizeof(params));
> +
> + /* Set up params */
> + for (i = 0; i < dc_state->stream_count; i++) {
> + struct dc_dsc_policy dsc_policy = {0};
> +
> + stream = dc_state->streams[i];
> +
> + if (stream->link != dc_link)
> + continue;
> +
> + stream->timing.flags.DSC = 0;
> +
> + params[count].timing = &stream->timing;
> + params[count].sink = stream->sink;
> + aconnector = (struct amdgpu_dm_connector *)stream-
> >dm_stream_context;
> + params[count].port = aconnector->port;
> + params[count].compression_possible = stream->sink-
> >sink_dsc_caps.dsc_dec_caps.is_dsc_supported;
> + dc_dsc_get_policy_for_timing(params[count].timing,
> &dsc_policy);
> + if (!dc_dsc_compute_bandwidth_range(
> + stream->sink->ctx->dc->res_pool->dscs[0],
> + stream->sink->ctx->dc-
> >debug.dsc_min_slice_height_override,
> + dsc_policy.min_target_bpp,
> + dsc_policy.max_target_bpp,
> + &stream->sink->sink_dsc_caps.dsc_dec_caps,
> + &stream->timing, ¶ms[count].bw_range))
> + params[count].bw_range.stream_kbps =
> dc_bandwidth_in_kbps_from_timing(&stream->timing);
> +
> + count++;
> + }
> + /* Try no compression */
> + for (i = 0; i < count; i++) {
> + vars[i].pbn =
> kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
> + vars[i].dsc_enabled = false;
> + vars[i].bpp_x16 = 0;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[i].port->mgr,
> + params[i].port,
> + vars[i].pbn,
> + 0);
> + }
> + if (!drm_dp_mst_atomic_check(state)) {
> + set_dsc_configs_from_fairness_vars(params, vars, count);
> + return true;
> + }
> +
> + /* Try max compression */
> + for (i = 0; i < count; i++) {
> + if (params[i].compression_possible) {
> + vars[i].pbn =
> kbps_to_peak_pbn(params[i].bw_range.min_kbps);
> + vars[i].dsc_enabled = true;
> + vars[i].bpp_x16 =
> params[i].bw_range.min_target_bpp_x16;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[i].port->mgr,
> + params[i].port,
> + vars[i].pbn,
> + dm_mst_get_pbn_divider(dc_link))
> ;
> + } else {
> + vars[i].pbn =
> kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
> + vars[i].dsc_enabled = false;
> + vars[i].bpp_x16 = 0;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[i].port->mgr,
> + params[i].port,
> + vars[i].pbn,
> + 0);
> + }
> + }
> + if (drm_dp_mst_atomic_check(state))
> + return false;
> +
> + /* Optimize degree of compression */
> + increase_dsc_bpp(state, dc_link, params, vars, count);
> +
> + try_disable_dsc(state, dc_link, params, vars, count);
> +
> + set_dsc_configs_from_fairness_vars(params, vars, count);
> +
> + return true;
> +}
> +
> +bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
> + struct dc_state *dc_state)
> +{
> + int i, j;
> + struct dc_stream_state *stream;
> + bool computed_streams[MAX_PIPES];
> + struct amdgpu_dm_connector *aconnector;
> +
> + for (i = 0; i < dc_state->stream_count; i++)
> + computed_streams[i] = false;
> +
> + for (i = 0; i < dc_state->stream_count; i++) {
> + stream = dc_state->streams[i];
> +
> + if (stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST)
> + continue;
> +
> + aconnector = (struct amdgpu_dm_connector *)stream-
> >dm_stream_context;
> +
> + if (!aconnector || !aconnector->dc_sink)
> + continue;
> +
> + if (!aconnector->dc_sink-
> >sink_dsc_caps.dsc_dec_caps.is_dsc_supported)
> + continue;
> +
> + if (computed_streams[i])
> + continue;
> +
> + mutex_lock(&aconnector->mst_mgr.lock);
> + if (!compute_mst_dsc_configs_for_link(state, dc_state, stream-
> >link)) {
> + mutex_unlock(&aconnector->mst_mgr.lock);
> + return false;
> + }
> + mutex_unlock(&aconnector->mst_mgr.lock);
> +
> + for (j = 0; j < dc_state->stream_count; j++) {
> + if (dc_state->streams[j]->link == stream->link)
> + computed_streams[j] = true;
> + }
> + }
> +
> + for (i = 0; i < dc_state->stream_count; i++) {
> + stream = dc_state->streams[i];
> +
> + if (stream->timing.flags.DSC == 1)
> + dcn20_add_dsc_to_stream_resource(stream->ctx->dc,
> dc_state, stream);
> + }
> +
> + return true;
> +}
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> index a553ea046185..d451ce9cecc0 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> @@ -34,4 +34,7 @@ int dm_mst_get_pbn_divider(struct dc_link *link);
> void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
> struct amdgpu_dm_connector
> *aconnector);
>
> +
> +bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
> + struct dc_state *dc_state);
> #endif
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index 2ccfd84a7da4..7f03a6b5ae1b 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -1558,7 +1558,7 @@ static void release_dsc(struct resource_context
> *res_ctx,
>
>
>
> -static enum dc_status add_dsc_to_stream_resource(struct dc *dc,
> +enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc,
> struct dc_state *dc_ctx,
> struct dc_stream_state *dc_stream)
> {
> @@ -1573,6 +1573,9 @@ static enum dc_status
> add_dsc_to_stream_resource(struct dc *dc,
> if (pipe_ctx->stream != dc_stream)
> continue;
>
> + if (pipe_ctx->stream_res.dsc)
> + continue;
> +
> acquire_dsc(&dc_ctx->res_ctx, pool, &pipe_ctx-
> >stream_res.dsc);
>
> /* The number of DSCs can be less than the number of pipes */
> @@ -1622,7 +1625,7 @@ enum dc_status dcn20_add_stream_to_ctx(struct dc *dc,
> struct dc_state *new_ctx,
>
> /* Get a DSC if required and available */
> if (result == DC_OK && dc_stream->timing.flags.DSC)
> - result = add_dsc_to_stream_resource(dc, new_ctx, dc_stream);
> + result = dcn20_add_dsc_to_stream_resource(dc, new_ctx,
> dc_stream);
>
> if (result == DC_OK)
> result = dcn20_build_mapped_resource(dc, new_ctx, dc_stream);
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> index 840ca66c34e1..f5893840b79b 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> @@ -157,6 +157,7 @@ void dcn20_calculate_dlg_params(
>
> enum dc_status dcn20_build_mapped_resource(const struct dc *dc, struct
> dc_state *context, struct dc_stream_state *stream);
> enum dc_status dcn20_add_stream_to_ctx(struct dc *dc, struct dc_state
> *new_ctx, struct dc_stream_state *dc_stream);
> +enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc, struct
> dc_state *dc_ctx, struct dc_stream_state *dc_stream);
> enum dc_status dcn20_remove_stream_from_ctx(struct dc *dc, struct dc_state
> *new_ctx, struct dc_stream_state *dc_stream);
> enum dc_status dcn20_get_default_swizzle_mode(struct dc_plane_state
> *plane_state);
>
--
Cheers,
Lyude Paul
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 14/17] drm/amd/display: MST DSC compute fair share
@ 2019-12-07 0:53 ` Lyude Paul
0 siblings, 0 replies; 70+ messages in thread
From: Lyude Paul @ 2019-12-07 0:53 UTC (permalink / raw)
To: mikita.lipski, amd-gfx; +Cc: Manasi Navare, David Francis, dri-devel
I've still gotta do a little bit of thinking on this one, but I'll make sure
to get back to you about this patch on monday. In the mean time, everything
else looks great! Thanks for the good work :)
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> If there is limited link bandwidth on a MST network,
> it must be divided fairly between the streams on that network
>
> Implement an algorithm to determine the correct DSC config
> for each stream
>
> The algorithm:
> This
> [ ] ( )
> represents the range of bandwidths possible for a given stream.
> The [] area represents the range of DSC configs, and the ()
> represents no DSC. The bandwidth used increases from left to right.
>
> First, try disabling DSC on all streams
> [ ] (|)
> [ ] (|)
> Check this against the bandwidth limits of the link and each branch
> (including each endpoint). If it passes, the job is done
>
> Second, try maximum DSC compression on all streams
> that support DSC
> [| ] ( )
> [| ] ( )
> If this does not pass, then enabling this combination of streams
> is impossible
>
> Otherwise, divide the remaining bandwidth evenly amongst the streams
> [ | ] ( )
> [ | ] ( )
>
> If one or more of the streams reach minimum compression, evenly
> divide the reamining bandwidth amongst the remaining streams
> [ |] ( )
> [ |] ( )
> [ | ] ( )
> [ | ] ( )
>
> If all streams can reach minimum compression, disable compression
> greedily
> [ |] ( )
> [ |] ( )
> [ ] (|)
>
> Perform this algorithm on each full update, on each MST link
> with at least one DSC stream on it
>
> After the configs are computed, call
> dcn20_add_dsc_to_stream_resource on each stream with DSC enabled.
> It is only after all streams are created that we can know which
> of them will need DSC.
>
> Do all of this at the end of amdgpu atomic check. If it fails,
> fail check; This combination of timings cannot be supported.
>
> v2: Use drm_dp_mst_atomic_check to validate bw for certain dsc
> configurations
>
> v3: Use dc_dsc_policy structure to get min and max bpp rate
> for DSC configuration
>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +
> .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 364 ++++++++++++++++++
> .../display/amdgpu_dm/amdgpu_dm_mst_types.h | 3 +
> .../drm/amd/display/dc/dcn20/dcn20_resource.c | 7 +-
> .../drm/amd/display/dc/dcn20/dcn20_resource.h | 1 +
> 5 files changed, 376 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 753a79734817..93a230d956ee 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -8095,6 +8095,9 @@ static int amdgpu_dm_atomic_check(struct drm_device
> *dev,
> if (ret)
> goto fail;
>
> + if (!compute_mst_dsc_configs_for_state(state, dm_state-
> >context))
> + goto fail;
> +
> if (dc_validate_global_state(dc, dm_state->context, false) !=
> DC_OK) {
> ret = -EINVAL;
> goto fail;
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> index c376c8ccd391..6d13d1c33530 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
> @@ -40,6 +40,10 @@
> #if defined(CONFIG_DEBUG_FS)
> #include "amdgpu_dm_debugfs.h"
> #endif
> +
> +
> +#include "dc/dcn20/dcn20_resource.h"
> +
> /* #define TRACE_DPCD */
>
> #ifdef TRACE_DPCD
> @@ -499,3 +503,363 @@ int dm_mst_get_pbn_divider(struct dc_link *link)
> return dc_link_bandwidth_kbps(link,
> dc_link_get_link_cap(link)) / (8 * 1000 * 54);
> }
> +
> +struct dsc_mst_fairness_params {
> + struct dc_crtc_timing *timing;
> + struct dc_sink *sink;
> + struct dc_dsc_bw_range bw_range;
> + bool compression_possible;
> + struct drm_dp_mst_port *port;
> +};
> +
> +struct dsc_mst_fairness_vars {
> + int pbn;
> + bool dsc_enabled;
> + int bpp_x16;
> +};
> +
> +static int kbps_to_peak_pbn(int kbps)
> +{
> + u64 peak_kbps = kbps;
> +
> + peak_kbps *= 1006;
> + peak_kbps /= 1000;
> + return (int) DIV_ROUND_UP(peak_kbps * 64, (54 * 8 * 1000));
> +}
> +
> +static void set_dsc_configs_from_fairness_vars(struct
> dsc_mst_fairness_params *params,
> + struct dsc_mst_fairness_vars *vars,
> + int count)
> +{
> + int i;
> +
> + for (i = 0; i < count; i++) {
> + memset(¶ms[i].timing->dsc_cfg, 0, sizeof(params[i].timing-
> >dsc_cfg));
> + if (vars[i].dsc_enabled && dc_dsc_compute_config(
> + params[i].sink->ctx->dc->res_pool-
> >dscs[0],
> + ¶ms[i].sink-
> >sink_dsc_caps.dsc_dec_caps,
> + params[i].sink->ctx->dc-
> >debug.dsc_min_slice_height_override,
> + 0,
> + params[i].timing,
> + ¶ms[i].timing->dsc_cfg)) {
> + params[i].timing->flags.DSC = 1;
> + params[i].timing->dsc_cfg.bits_per_pixel =
> vars[i].bpp_x16;
> + } else {
> + params[i].timing->flags.DSC = 0;
> + }
> + }
> +}
> +
> +static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn)
> +{
> + struct dc_dsc_config dsc_config;
> + u64 kbps;
> +
> + kbps = (u64)pbn * 994 * 8 * 54 / 64;
> + dc_dsc_compute_config(
> + param.sink->ctx->dc->res_pool->dscs[0],
> + ¶m.sink->sink_dsc_caps.dsc_dec_caps,
> + param.sink->ctx->dc-
> >debug.dsc_min_slice_height_override,
> + (int) kbps, param.timing, &dsc_config);
> +
> + return dsc_config.bits_per_pixel;
> +}
> +
> +static void increase_dsc_bpp(struct drm_atomic_state *state,
> + struct dc_link *dc_link,
> + struct dsc_mst_fairness_params *params,
> + struct dsc_mst_fairness_vars *vars,
> + int count)
> +{
> + int i;
> + bool bpp_increased[MAX_PIPES];
> + int initial_slack[MAX_PIPES];
> + int min_initial_slack;
> + int next_index;
> + int remaining_to_increase = 0;
> + int pbn_per_timeslot;
> + int link_timeslots_used;
> + int fair_pbn_alloc;
> +
> + for (i = 0; i < count; i++) {
> + if (vars[i].dsc_enabled) {
> + initial_slack[i] =
> kbps_to_peak_pbn(params[i].bw_range.max_kbps) - vars[i].pbn;
> + bpp_increased[i] = false;
> + remaining_to_increase += 1;
> + } else {
> + initial_slack[i] = 0;
> + bpp_increased[i] = true;
> + }
> + }
> +
> + pbn_per_timeslot = dc_link_bandwidth_kbps(dc_link,
> + dc_link_get_link_cap(dc_link)) / (8 * 1000 * 54);
> +
> + while (remaining_to_increase) {
> + next_index = -1;
> + min_initial_slack = -1;
> + for (i = 0; i < count; i++) {
> + if (!bpp_increased[i]) {
> + if (min_initial_slack == -1 ||
> min_initial_slack > initial_slack[i]) {
> + min_initial_slack = initial_slack[i];
> + next_index = i;
> + }
> + }
> + }
> +
> + if (next_index == -1)
> + break;
> +
> + link_timeslots_used = 0;
> +
> + for (i = 0; i < count; i++)
> + link_timeslots_used += DIV_ROUND_UP(vars[i].pbn,
> pbn_per_timeslot);
> +
> + fair_pbn_alloc = (63 - link_timeslots_used) /
> remaining_to_increase * pbn_per_timeslot;
> +
> + if (initial_slack[next_index] > fair_pbn_alloc) {
> + vars[next_index].pbn += fair_pbn_alloc;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + if (!drm_dp_mst_atomic_check(state)) {
> + vars[next_index].bpp_x16 =
> bpp_x16_from_pbn(params[next_index], vars[next_index].pbn);
> + } else {
> + vars[next_index].pbn -= fair_pbn_alloc;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + }
> + } else {
> + vars[next_index].pbn += initial_slack[next_index];
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + if (!drm_dp_mst_atomic_check(state)) {
> + vars[next_index].bpp_x16 =
> params[next_index].bw_range.max_target_bpp_x16;
> + } else {
> + vars[next_index].pbn -=
> initial_slack[next_index];
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port-
> >mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(d
> c_link));
> + }
> + }
> +
> + bpp_increased[next_index] = true;
> + remaining_to_increase--;
> + }
> +}
> +
> +static void try_disable_dsc(struct drm_atomic_state *state,
> + struct dc_link *dc_link,
> + struct dsc_mst_fairness_params *params,
> + struct dsc_mst_fairness_vars *vars,
> + int count)
> +{
> + int i;
> + bool tried[MAX_PIPES];
> + int kbps_increase[MAX_PIPES];
> + int max_kbps_increase;
> + int next_index;
> + int remaining_to_try = 0;
> +
> + for (i = 0; i < count; i++) {
> + if (vars[i].dsc_enabled && vars[i].bpp_x16 ==
> params[i].bw_range.max_target_bpp_x16) {
> + kbps_increase[i] = params[i].bw_range.stream_kbps -
> params[i].bw_range.max_kbps;
> + tried[i] = false;
> + remaining_to_try += 1;
> + } else {
> + kbps_increase[i] = 0;
> + tried[i] = true;
> + }
> + }
> +
> + while (remaining_to_try) {
> + next_index = -1;
> + max_kbps_increase = -1;
> + for (i = 0; i < count; i++) {
> + if (!tried[i]) {
> + if (max_kbps_increase == -1 ||
> max_kbps_increase < kbps_increase[i]) {
> + max_kbps_increase = kbps_increase[i];
> + next_index = i;
> + }
> + }
> + }
> +
> + if (next_index == -1)
> + break;
> +
> + vars[next_index].pbn =
> kbps_to_peak_pbn(params[next_index].bw_range.stream_kbps);
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port->mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + 0);
> +
> + if (!drm_dp_mst_atomic_check(state)) {
> + vars[next_index].dsc_enabled = false;
> + vars[next_index].bpp_x16 = 0;
> + } else {
> + vars[next_index].pbn =
> kbps_to_peak_pbn(params[next_index].bw_range.max_kbps);
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[next_index].port->mgr,
> + params[next_index].port,
> + vars[next_index].pbn,
> + dm_mst_get_pbn_divider(dc_link))
> ;
> + }
> +
> + tried[next_index] = true;
> + remaining_to_try--;
> + }
> +}
> +
> +static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state
> *state,
> + struct dc_state *dc_state,
> + struct dc_link *dc_link)
> +{
> + int i;
> + struct dc_stream_state *stream;
> + struct dsc_mst_fairness_params params[MAX_PIPES];
> + struct dsc_mst_fairness_vars vars[MAX_PIPES];
> + struct amdgpu_dm_connector *aconnector;
> + int count = 0;
> +
> + memset(params, 0, sizeof(params));
> +
> + /* Set up params */
> + for (i = 0; i < dc_state->stream_count; i++) {
> + struct dc_dsc_policy dsc_policy = {0};
> +
> + stream = dc_state->streams[i];
> +
> + if (stream->link != dc_link)
> + continue;
> +
> + stream->timing.flags.DSC = 0;
> +
> + params[count].timing = &stream->timing;
> + params[count].sink = stream->sink;
> + aconnector = (struct amdgpu_dm_connector *)stream-
> >dm_stream_context;
> + params[count].port = aconnector->port;
> + params[count].compression_possible = stream->sink-
> >sink_dsc_caps.dsc_dec_caps.is_dsc_supported;
> + dc_dsc_get_policy_for_timing(params[count].timing,
> &dsc_policy);
> + if (!dc_dsc_compute_bandwidth_range(
> + stream->sink->ctx->dc->res_pool->dscs[0],
> + stream->sink->ctx->dc-
> >debug.dsc_min_slice_height_override,
> + dsc_policy.min_target_bpp,
> + dsc_policy.max_target_bpp,
> + &stream->sink->sink_dsc_caps.dsc_dec_caps,
> + &stream->timing, ¶ms[count].bw_range))
> + params[count].bw_range.stream_kbps =
> dc_bandwidth_in_kbps_from_timing(&stream->timing);
> +
> + count++;
> + }
> + /* Try no compression */
> + for (i = 0; i < count; i++) {
> + vars[i].pbn =
> kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
> + vars[i].dsc_enabled = false;
> + vars[i].bpp_x16 = 0;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[i].port->mgr,
> + params[i].port,
> + vars[i].pbn,
> + 0);
> + }
> + if (!drm_dp_mst_atomic_check(state)) {
> + set_dsc_configs_from_fairness_vars(params, vars, count);
> + return true;
> + }
> +
> + /* Try max compression */
> + for (i = 0; i < count; i++) {
> + if (params[i].compression_possible) {
> + vars[i].pbn =
> kbps_to_peak_pbn(params[i].bw_range.min_kbps);
> + vars[i].dsc_enabled = true;
> + vars[i].bpp_x16 =
> params[i].bw_range.min_target_bpp_x16;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[i].port->mgr,
> + params[i].port,
> + vars[i].pbn,
> + dm_mst_get_pbn_divider(dc_link))
> ;
> + } else {
> + vars[i].pbn =
> kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
> + vars[i].dsc_enabled = false;
> + vars[i].bpp_x16 = 0;
> + drm_dp_atomic_find_vcpi_slots(state,
> + params[i].port->mgr,
> + params[i].port,
> + vars[i].pbn,
> + 0);
> + }
> + }
> + if (drm_dp_mst_atomic_check(state))
> + return false;
> +
> + /* Optimize degree of compression */
> + increase_dsc_bpp(state, dc_link, params, vars, count);
> +
> + try_disable_dsc(state, dc_link, params, vars, count);
> +
> + set_dsc_configs_from_fairness_vars(params, vars, count);
> +
> + return true;
> +}
> +
> +bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
> + struct dc_state *dc_state)
> +{
> + int i, j;
> + struct dc_stream_state *stream;
> + bool computed_streams[MAX_PIPES];
> + struct amdgpu_dm_connector *aconnector;
> +
> + for (i = 0; i < dc_state->stream_count; i++)
> + computed_streams[i] = false;
> +
> + for (i = 0; i < dc_state->stream_count; i++) {
> + stream = dc_state->streams[i];
> +
> + if (stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST)
> + continue;
> +
> + aconnector = (struct amdgpu_dm_connector *)stream-
> >dm_stream_context;
> +
> + if (!aconnector || !aconnector->dc_sink)
> + continue;
> +
> + if (!aconnector->dc_sink-
> >sink_dsc_caps.dsc_dec_caps.is_dsc_supported)
> + continue;
> +
> + if (computed_streams[i])
> + continue;
> +
> + mutex_lock(&aconnector->mst_mgr.lock);
> + if (!compute_mst_dsc_configs_for_link(state, dc_state, stream-
> >link)) {
> + mutex_unlock(&aconnector->mst_mgr.lock);
> + return false;
> + }
> + mutex_unlock(&aconnector->mst_mgr.lock);
> +
> + for (j = 0; j < dc_state->stream_count; j++) {
> + if (dc_state->streams[j]->link == stream->link)
> + computed_streams[j] = true;
> + }
> + }
> +
> + for (i = 0; i < dc_state->stream_count; i++) {
> + stream = dc_state->streams[i];
> +
> + if (stream->timing.flags.DSC == 1)
> + dcn20_add_dsc_to_stream_resource(stream->ctx->dc,
> dc_state, stream);
> + }
> +
> + return true;
> +}
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> index a553ea046185..d451ce9cecc0 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
> @@ -34,4 +34,7 @@ int dm_mst_get_pbn_divider(struct dc_link *link);
> void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
> struct amdgpu_dm_connector
> *aconnector);
>
> +
> +bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
> + struct dc_state *dc_state);
> #endif
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index 2ccfd84a7da4..7f03a6b5ae1b 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -1558,7 +1558,7 @@ static void release_dsc(struct resource_context
> *res_ctx,
>
>
>
> -static enum dc_status add_dsc_to_stream_resource(struct dc *dc,
> +enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc,
> struct dc_state *dc_ctx,
> struct dc_stream_state *dc_stream)
> {
> @@ -1573,6 +1573,9 @@ static enum dc_status
> add_dsc_to_stream_resource(struct dc *dc,
> if (pipe_ctx->stream != dc_stream)
> continue;
>
> + if (pipe_ctx->stream_res.dsc)
> + continue;
> +
> acquire_dsc(&dc_ctx->res_ctx, pool, &pipe_ctx-
> >stream_res.dsc);
>
> /* The number of DSCs can be less than the number of pipes */
> @@ -1622,7 +1625,7 @@ enum dc_status dcn20_add_stream_to_ctx(struct dc *dc,
> struct dc_state *new_ctx,
>
> /* Get a DSC if required and available */
> if (result == DC_OK && dc_stream->timing.flags.DSC)
> - result = add_dsc_to_stream_resource(dc, new_ctx, dc_stream);
> + result = dcn20_add_dsc_to_stream_resource(dc, new_ctx,
> dc_stream);
>
> if (result == DC_OK)
> result = dcn20_build_mapped_resource(dc, new_ctx, dc_stream);
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> index 840ca66c34e1..f5893840b79b 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h
> @@ -157,6 +157,7 @@ void dcn20_calculate_dlg_params(
>
> enum dc_status dcn20_build_mapped_resource(const struct dc *dc, struct
> dc_state *context, struct dc_stream_state *stream);
> enum dc_status dcn20_add_stream_to_ctx(struct dc *dc, struct dc_state
> *new_ctx, struct dc_stream_state *dc_stream);
> +enum dc_status dcn20_add_dsc_to_stream_resource(struct dc *dc, struct
> dc_state *dc_ctx, struct dc_stream_state *dc_stream);
> enum dc_status dcn20_remove_stream_from_ctx(struct dc *dc, struct dc_state
> *new_ctx, struct dc_stream_state *dc_stream);
> enum dc_status dcn20_get_default_swizzle_mode(struct dc_plane_state
> *plane_state);
>
--
Cheers,
Lyude Paul
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* RE: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
2019-12-07 0:17 ` Lyude Paul
@ 2019-12-07 22:13 ` Lipski, Mikita
-1 siblings, 0 replies; 70+ messages in thread
From: Lipski, Mikita @ 2019-12-07 22:13 UTC (permalink / raw)
To: Lyude Paul, amd-gfx; +Cc: dri-devel
[-- Attachment #1.1: Type: text/plain, Size: 8817 bytes --]
Hi Lyude,
Thanks for the review.
I’ve updated this patch in a v9 iteration of it, I’ve sent separately from the series this past Monday. The new version has the updated selftest.
Thanks,
Mikita
From: Lyude Paul<mailto:lyude@redhat.com>
Sent: December 6, 2019 7:17 PM
To: Lipski, Mikita<mailto:Mikita.Lipski@amd.com>; amd-gfx@lists.freedesktop.org<mailto:amd-gfx@lists.freedesktop.org>
Cc: dri-devel@lists.freedesktop.org<mailto:dri-devel@lists.freedesktop.org>; David Francis<mailto:David.Francis@amd.com>
Subject: Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
This patch still needs to be rebased, and the selftests for the PBN
calculation that got added still need to be updated to reflect the changes for
dsc. The code for PBN calculation changed quite a bit upstream since this
series started.
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> With DSC, bpp can be fractional in multiples of 1/16.
>
> Change drm_dp_calc_pbn_mode to reflect this, adding a new
> parameter bool dsc. When this parameter is true, treat the
> bpp parameter as having units not of bits per pixel, but
> 1/16 of a bit per pixel
>
> v2: Don't add separate function for this
>
> v3: Keep the calculation in a single equation
>
> Cc: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
> drivers/gpu/drm/drm_dp_mst_topology.c | 38 ++++++++++++++++++-
> drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
> drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +-
> drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
> include/drm/drm_dp_mst_helper.h | 3 +-
> 6 files changed, 43 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 455c51c38720..9fc03fc1017d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4967,7 +4967,7 @@ static int dm_encoder_helper_atomic_check(struct
> drm_encoder *encoder,
> is_y420);
> bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
> clock = adjusted_mode->clock;
> - dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock,
> bpp);
> + dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
> dm_new_connector_state->vcpi_slots =
> drm_dp_atomic_find_vcpi_slots(state,
> mst
> _mgr,
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index ae5809a1f19a..261e2c1828c6 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4342,10 +4342,11 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
> * drm_dp_calc_pbn_mode() - Calculate the PBN for a mode.
> * @clock: dot clock for the mode
> * @bpp: bpp for the mode.
> + * @dsc: DSC mode. If true, bpp has units of 1/16 of a bit per pixel
> *
> * This uses the formula in the spec to calculate the PBN value for a mode.
> */
> -int drm_dp_calc_pbn_mode(int clock, int bpp)
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc)
> {
> /*
> * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
> @@ -4356,12 +4357,47 @@ int drm_dp_calc_pbn_mode(int clock, int bpp)
> * peak_kbps *= (1006/1000)
> * peak_kbps *= (64/54)
> * peak_kbps *= 8 convert to bytes
> + *
> + * If the bpp is in units of 1/16, further divide by 16. Put this
> + * factor in the numerator rather than the denominator to avoid
> + * integer overflow
> */
> +
> + if (dsc)
> + return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006 /
> 16),
> + 8 * 54 * 1000 * 1000);
> +
> return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006),
> 8 * 54 * 1000 * 1000);
> +
> }
> EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
>
> +static int test_calc_pbn_mode(void)
> +{
> + int ret;
> + ret = drm_dp_calc_pbn_mode(154000, 30, false);
> + if (ret != 689) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 154000, 30, 689, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(234000, 30, false);
> + if (ret != 1047) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 234000, 30, 1047, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(297000, 24, false);
> + if (ret != 1063) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 297000, 24, 1063, ret);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> +
> /* we want to kick the TX after we've ack the up/down IRQs. */
> static void drm_dp_mst_kick_tx(struct drm_dp_mst_topology_mgr *mgr)
> {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 03d1cba0b696..92be17711287 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct
> intel_encoder *encoder,
> crtc_state->pipe_bpp = bpp;
>
> crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode-
> >crtc_clock,
> - crtc_state->pipe_bpp);
> + crtc_state->pipe_bpp,
> + false);
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp-
> >mst_mgr,
> port, crtc_state->pbn);
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> index 549486f1d937..1c9e23d5a6fd 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> @@ -782,7 +782,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
> const int bpp = connector->display_info.bpc * 3;
> const int clock = crtc_state->adjusted_mode.clock;
>
> - asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp);
> + asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
> diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> index ee28f5b3785e..28eef9282874 100644
> --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> @@ -518,7 +518,7 @@ static bool radeon_mst_mode_fixup(struct drm_encoder
> *encoder,
>
> mst_enc = radeon_encoder->enc_priv;
>
> - mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
> + mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp, false);
>
> mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc-
> >connector->devices;
> DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for
> encoder %d\n",
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index d5fc90b30487..68656913cfe5 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -719,8 +719,7 @@ bool drm_dp_mst_port_has_audio(struct
> drm_dp_mst_topology_mgr *mgr,
> struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct
> drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
>
>
> -int drm_dp_calc_pbn_mode(int clock, int bpp);
> -
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
>
> bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_port *port, int pbn, int
> slots);
--
Cheers,
Lyude Paul
[-- Attachment #1.2: Type: text/html, Size: 17882 bytes --]
[-- Attachment #2: Type: text/plain, Size: 159 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* RE: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
@ 2019-12-07 22:13 ` Lipski, Mikita
0 siblings, 0 replies; 70+ messages in thread
From: Lipski, Mikita @ 2019-12-07 22:13 UTC (permalink / raw)
To: Lyude Paul, amd-gfx; +Cc: dri-devel
[-- Attachment #1.1: Type: text/plain, Size: 8817 bytes --]
Hi Lyude,
Thanks for the review.
I’ve updated this patch in a v9 iteration of it, I’ve sent separately from the series this past Monday. The new version has the updated selftest.
Thanks,
Mikita
From: Lyude Paul<mailto:lyude@redhat.com>
Sent: December 6, 2019 7:17 PM
To: Lipski, Mikita<mailto:Mikita.Lipski@amd.com>; amd-gfx@lists.freedesktop.org<mailto:amd-gfx@lists.freedesktop.org>
Cc: dri-devel@lists.freedesktop.org<mailto:dri-devel@lists.freedesktop.org>; David Francis<mailto:David.Francis@amd.com>
Subject: Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
This patch still needs to be rebased, and the selftests for the PBN
calculation that got added still need to be updated to reflect the changes for
dsc. The code for PBN calculation changed quite a bit upstream since this
series started.
On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
> From: David Francis <David.Francis@amd.com>
>
> With DSC, bpp can be fractional in multiples of 1/16.
>
> Change drm_dp_calc_pbn_mode to reflect this, adding a new
> parameter bool dsc. When this parameter is true, treat the
> bpp parameter as having units not of bits per pixel, but
> 1/16 of a bit per pixel
>
> v2: Don't add separate function for this
>
> v3: Keep the calculation in a single equation
>
> Cc: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: David Francis <David.Francis@amd.com>
> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
> drivers/gpu/drm/drm_dp_mst_topology.c | 38 ++++++++++++++++++-
> drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
> drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +-
> drivers/gpu/drm/radeon/radeon_dp_mst.c | 2 +-
> include/drm/drm_dp_mst_helper.h | 3 +-
> 6 files changed, 43 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 455c51c38720..9fc03fc1017d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4967,7 +4967,7 @@ static int dm_encoder_helper_atomic_check(struct
> drm_encoder *encoder,
> is_y420);
> bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
> clock = adjusted_mode->clock;
> - dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock,
> bpp);
> + dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
> dm_new_connector_state->vcpi_slots =
> drm_dp_atomic_find_vcpi_slots(state,
> mst
> _mgr,
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index ae5809a1f19a..261e2c1828c6 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -4342,10 +4342,11 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
> * drm_dp_calc_pbn_mode() - Calculate the PBN for a mode.
> * @clock: dot clock for the mode
> * @bpp: bpp for the mode.
> + * @dsc: DSC mode. If true, bpp has units of 1/16 of a bit per pixel
> *
> * This uses the formula in the spec to calculate the PBN value for a mode.
> */
> -int drm_dp_calc_pbn_mode(int clock, int bpp)
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc)
> {
> /*
> * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
> @@ -4356,12 +4357,47 @@ int drm_dp_calc_pbn_mode(int clock, int bpp)
> * peak_kbps *= (1006/1000)
> * peak_kbps *= (64/54)
> * peak_kbps *= 8 convert to bytes
> + *
> + * If the bpp is in units of 1/16, further divide by 16. Put this
> + * factor in the numerator rather than the denominator to avoid
> + * integer overflow
> */
> +
> + if (dsc)
> + return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006 /
> 16),
> + 8 * 54 * 1000 * 1000);
> +
> return DIV_ROUND_UP_ULL(mul_u32_u32(clock * bpp, 64 * 1006),
> 8 * 54 * 1000 * 1000);
> +
> }
> EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
>
> +static int test_calc_pbn_mode(void)
> +{
> + int ret;
> + ret = drm_dp_calc_pbn_mode(154000, 30, false);
> + if (ret != 689) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 154000, 30, 689, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(234000, 30, false);
> + if (ret != 1047) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 234000, 30, 1047, ret);
> + return -EINVAL;
> + }
> + ret = drm_dp_calc_pbn_mode(297000, 24, false);
> + if (ret != 1063) {
> + DRM_ERROR("PBN calculation test failed - clock %d, bpp %d,
> expected PBN %d, actual PBN %d.\n",
> + 297000, 24, 1063, ret);
> + return -EINVAL;
> + }
> + return 0;
> +}
> +
> +
> /* we want to kick the TX after we've ack the up/down IRQs. */
> static void drm_dp_mst_kick_tx(struct drm_dp_mst_topology_mgr *mgr)
> {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 03d1cba0b696..92be17711287 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct
> intel_encoder *encoder,
> crtc_state->pipe_bpp = bpp;
>
> crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode-
> >crtc_clock,
> - crtc_state->pipe_bpp);
> + crtc_state->pipe_bpp,
> + false);
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp-
> >mst_mgr,
> port, crtc_state->pbn);
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> index 549486f1d937..1c9e23d5a6fd 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> @@ -782,7 +782,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
> const int bpp = connector->display_info.bpc * 3;
> const int clock = crtc_state->adjusted_mode.clock;
>
> - asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp);
> + asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp,
> false);
> }
>
> slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
> diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> index ee28f5b3785e..28eef9282874 100644
> --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> @@ -518,7 +518,7 @@ static bool radeon_mst_mode_fixup(struct drm_encoder
> *encoder,
>
> mst_enc = radeon_encoder->enc_priv;
>
> - mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
> + mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp, false);
>
> mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc-
> >connector->devices;
> DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for
> encoder %d\n",
> diff --git a/include/drm/drm_dp_mst_helper.h
> b/include/drm/drm_dp_mst_helper.h
> index d5fc90b30487..68656913cfe5 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -719,8 +719,7 @@ bool drm_dp_mst_port_has_audio(struct
> drm_dp_mst_topology_mgr *mgr,
> struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct
> drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
>
>
> -int drm_dp_calc_pbn_mode(int clock, int bpp);
> -
> +int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
>
> bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_mst_port *port, int pbn, int
> slots);
--
Cheers,
Lyude Paul
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_______________________________________________
amd-gfx mailing list
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
2019-12-07 0:24 ` Lyude Paul
@ 2019-12-09 14:07 ` Mikita Lipski
-1 siblings, 0 replies; 70+ messages in thread
From: Mikita Lipski @ 2019-12-09 14:07 UTC (permalink / raw)
To: Lyude Paul, amd-gfx; +Cc: dri-devel
On 12/6/19 7:24 PM, Lyude Paul wrote:
> Nice! All I've got is a couple of typos I noticed and one question, this looks
> great :)
>
Thanks! I'll clean it up. The response to the question is below.
>> On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
>> From: Mikita Lipski <mikita.lipski@amd.com>
>>
>> Adding a helper function to be called by
>> drivers outside of DRM to enable DSC on
>> the MST ports.
>>
>> Function is called to recalculate VCPI allocation
>> if DSC is enabled and raise the DSC flag to enable.
>> In case of disabling DSC the flag is set to false
>> and recalculation of VCPI slots is expected to be done
>> in encoder's atomic_check.
>>
>> v2: squash separate functions into one and call it per
>> port
>>
>> Cc: Harry Wentland <harry.wentland@amd.com>
>> Cc: Lyude Paul <lyude@redhat.com>
>> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
>> ---
>> drivers/gpu/drm/drm_dp_mst_topology.c | 61 +++++++++++++++++++++++++++
>> include/drm/drm_dp_mst_helper.h | 5 +++
>> 2 files changed, 66 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
>> b/drivers/gpu/drm/drm_dp_mst_topology.c
>> index f1d883960831..5e549f48ffb8 100644
>> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
>> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
>> @@ -4742,6 +4742,67 @@ drm_dp_mst_atomic_check_topology_state(struct
>> drm_dp_mst_topology_mgr *mgr,
>> return 0;
>> }
>>
>> +/**
>> + * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
>> + * @state: Pointer to the new drm_atomic_state
>> + * @pointer: Pointer to the affected MST Port
> Typo here
>
>> + * @pbn: Newly recalculated bw required for link with DSC enabled
>> + * @pbn_div: Divider to calculate correct number of pbn per slot
>> + * @enable: Boolean flag enabling or disabling DSC on the port
>> + *
>> + * This function enables DSC on the given Port
>> + * by recalculating its vcpi from pbn provided
>> + * and sets dsc_enable flag to keep track of which
>> + * ports have DSC enabled
>> + *
>> + */
>> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
>> + struct drm_dp_mst_port *port,
>> + int pbn, int pbn_div,
>> + bool enable)
>> +{
>> + struct drm_dp_mst_topology_state *mst_state;
>> + struct drm_dp_vcpi_allocation *pos;
>> + bool found = false;
>> + int vcpi = 0;
>> +
>> + mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
>> +
>> + if (IS_ERR(mst_state))
>> + return PTR_ERR(mst_state);
>> +
>> + list_for_each_entry(pos, &mst_state->vcpis, next) {
>> + if (pos->port == port) {
>> + found = true;
>> + break;
>> + }
>> + }
>> +
>> + if (!found) {
>> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation
>> in mst state %p\n",
>> + port, mst_state);
>> + return -EINVAL;
>> + }
>
> Just double checking-does this handle the case where we're enabling DSC on a
> port that didn't previously have a VCPI allocation because it wasn't enabled
> previously? Or do we not need to handle that here
Because we call encoder atomic check previously to allocate VCPI slots -
the port should have VCPI allocation before enabling DSC even if it
wasn't enabled previously.
Therefore, I was thinking, that if encoder atomic check fails to
allocate VCPI slots for the port - we shouldn't enable DSC on it and
probably should fail atomic check if that is even requested.
>
> Assuming you did the right thing here, with the small typo fixes:
>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
>
>> +
>> + if (pos->dsc_enabled == enable) {
>> + DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d,
>> returning %d VCPI slots\n",
>> + port, enable, pos->vcpi);
>> + vcpi = pos->vcpi;
>> + }
>> +
>> + if (enable) {
>> + vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port,
>> pbn, pbn_div);
>> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag,
>> reallocating %d VCPI slots on the port\n",
>> + port, vcpi);
>> + if (vcpi < 0)
>> + return -EINVAL;
>> + }
>> +
>> + pos->dsc_enabled = enable;
>> +
>> + return vcpi;
>> +}
>> +EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
>> /**
>> * drm_dp_mst_atomic_check - Check that the new state of an MST topology in
>> an
>> * atomic update is valid
>> diff --git a/include/drm/drm_dp_mst_helper.h
>> b/include/drm/drm_dp_mst_helper.h
>> index 0f813d6346aa..830c94b7f45d 100644
>> --- a/include/drm/drm_dp_mst_helper.h
>> +++ b/include/drm/drm_dp_mst_helper.h
>> @@ -502,6 +502,7 @@ struct drm_dp_payload {
>> struct drm_dp_vcpi_allocation {
>> struct drm_dp_mst_port *port;
>> int vcpi;
>> + bool dsc_enabled;
>> struct list_head next;
>> };
>>
>> @@ -773,6 +774,10 @@ drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state
>> *state,
>> struct drm_dp_mst_topology_mgr *mgr,
>> struct drm_dp_mst_port *port, int pbn,
>> int pbn_div);
>> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
>> + struct drm_dp_mst_port *port,
>> + int pbn, int pbn_div,
>> + bool enable);
>> int __must_check
>> drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
>> struct drm_dp_mst_topology_mgr *mgr,
--
Thanks,
Mikita Lipski
Software Engineer, AMD
mikita.lipski@amd.com
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 70+ messages in thread
* Re: [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM
@ 2019-12-09 14:07 ` Mikita Lipski
0 siblings, 0 replies; 70+ messages in thread
From: Mikita Lipski @ 2019-12-09 14:07 UTC (permalink / raw)
To: Lyude Paul, amd-gfx; +Cc: Harry Wentland, dri-devel
On 12/6/19 7:24 PM, Lyude Paul wrote:
> Nice! All I've got is a couple of typos I noticed and one question, this looks
> great :)
>
Thanks! I'll clean it up. The response to the question is below.
>> On Tue, 2019-12-03 at 09:35 -0500, mikita.lipski@amd.com wrote:
>> From: Mikita Lipski <mikita.lipski@amd.com>
>>
>> Adding a helper function to be called by
>> drivers outside of DRM to enable DSC on
>> the MST ports.
>>
>> Function is called to recalculate VCPI allocation
>> if DSC is enabled and raise the DSC flag to enable.
>> In case of disabling DSC the flag is set to false
>> and recalculation of VCPI slots is expected to be done
>> in encoder's atomic_check.
>>
>> v2: squash separate functions into one and call it per
>> port
>>
>> Cc: Harry Wentland <harry.wentland@amd.com>
>> Cc: Lyude Paul <lyude@redhat.com>
>> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
>> ---
>> drivers/gpu/drm/drm_dp_mst_topology.c | 61 +++++++++++++++++++++++++++
>> include/drm/drm_dp_mst_helper.h | 5 +++
>> 2 files changed, 66 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
>> b/drivers/gpu/drm/drm_dp_mst_topology.c
>> index f1d883960831..5e549f48ffb8 100644
>> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
>> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
>> @@ -4742,6 +4742,67 @@ drm_dp_mst_atomic_check_topology_state(struct
>> drm_dp_mst_topology_mgr *mgr,
>> return 0;
>> }
>>
>> +/**
>> + * drm_dp_mst_atomic_enable_dsc - Set DSC Enable Flag to On/Off
>> + * @state: Pointer to the new drm_atomic_state
>> + * @pointer: Pointer to the affected MST Port
> Typo here
>
>> + * @pbn: Newly recalculated bw required for link with DSC enabled
>> + * @pbn_div: Divider to calculate correct number of pbn per slot
>> + * @enable: Boolean flag enabling or disabling DSC on the port
>> + *
>> + * This function enables DSC on the given Port
>> + * by recalculating its vcpi from pbn provided
>> + * and sets dsc_enable flag to keep track of which
>> + * ports have DSC enabled
>> + *
>> + */
>> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
>> + struct drm_dp_mst_port *port,
>> + int pbn, int pbn_div,
>> + bool enable)
>> +{
>> + struct drm_dp_mst_topology_state *mst_state;
>> + struct drm_dp_vcpi_allocation *pos;
>> + bool found = false;
>> + int vcpi = 0;
>> +
>> + mst_state = drm_atomic_get_mst_topology_state(state, port->mgr);
>> +
>> + if (IS_ERR(mst_state))
>> + return PTR_ERR(mst_state);
>> +
>> + list_for_each_entry(pos, &mst_state->vcpis, next) {
>> + if (pos->port == port) {
>> + found = true;
>> + break;
>> + }
>> + }
>> +
>> + if (!found) {
>> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Couldn't find VCPI allocation
>> in mst state %p\n",
>> + port, mst_state);
>> + return -EINVAL;
>> + }
>
> Just double checking-does this handle the case where we're enabling DSC on a
> port that didn't previously have a VCPI allocation because it wasn't enabled
> previously? Or do we not need to handle that here
Because we call encoder atomic check previously to allocate VCPI slots -
the port should have VCPI allocation before enabling DSC even if it
wasn't enabled previously.
Therefore, I was thinking, that if encoder atomic check fails to
allocate VCPI slots for the port - we shouldn't enable DSC on it and
probably should fail atomic check if that is even requested.
>
> Assuming you did the right thing here, with the small typo fixes:
>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
>
>> +
>> + if (pos->dsc_enabled == enable) {
>> + DRM_DEBUG_ATOMIC("[MST PORT:%p] DSC flag is already set to %d,
>> returning %d VCPI slots\n",
>> + port, enable, pos->vcpi);
>> + vcpi = pos->vcpi;
>> + }
>> +
>> + if (enable) {
>> + vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port,
>> pbn, pbn_div);
>> + DRM_DEBUG_ATOMIC("[MST PORT:%p] Enabling DSC flag,
>> reallocating %d VCPI slots on the port\n",
>> + port, vcpi);
>> + if (vcpi < 0)
>> + return -EINVAL;
>> + }
>> +
>> + pos->dsc_enabled = enable;
>> +
>> + return vcpi;
>> +}
>> +EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc);
>> /**
>> * drm_dp_mst_atomic_check - Check that the new state of an MST topology in
>> an
>> * atomic update is valid
>> diff --git a/include/drm/drm_dp_mst_helper.h
>> b/include/drm/drm_dp_mst_helper.h
>> index 0f813d6346aa..830c94b7f45d 100644
>> --- a/include/drm/drm_dp_mst_helper.h
>> +++ b/include/drm/drm_dp_mst_helper.h
>> @@ -502,6 +502,7 @@ struct drm_dp_payload {
>> struct drm_dp_vcpi_allocation {
>> struct drm_dp_mst_port *port;
>> int vcpi;
>> + bool dsc_enabled;
>> struct list_head next;
>> };
>>
>> @@ -773,6 +774,10 @@ drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state
>> *state,
>> struct drm_dp_mst_topology_mgr *mgr,
>> struct drm_dp_mst_port *port, int pbn,
>> int pbn_div);
>> +int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
>> + struct drm_dp_mst_port *port,
>> + int pbn, int pbn_div,
>> + bool enable);
>> int __must_check
>> drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
>> struct drm_dp_mst_topology_mgr *mgr,
--
Thanks,
Mikita Lipski
Software Engineer, AMD
mikita.lipski@amd.com
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 70+ messages in thread
end of thread, other threads:[~2019-12-09 14:07 UTC | newest]
Thread overview: 70+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-03 14:35 [PATCH v8 00/17] DSC MST support for DRM and AMDGPU mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-06 0:22 ` kbuild test robot
2019-12-06 0:22 ` kbuild test robot
2019-12-06 0:22 ` kbuild test robot
2019-12-07 0:17 ` Lyude Paul
2019-12-07 0:17 ` Lyude Paul
2019-12-07 22:13 ` Lipski, Mikita
2019-12-07 22:13 ` Lipski, Mikita
2019-12-03 14:35 ` [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 21:09 ` kbuild test robot
2019-12-03 21:09 ` kbuild test robot
2019-12-03 21:09 ` kbuild test robot
2019-12-03 14:35 ` [PATCH v8 03/17] drm/dp_mst: Add MST support to DP DPCD R/W functions mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 04/17] drm/dp_mst: Fill branch->num_ports mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-06 4:30 ` Harry Wentland
2019-12-06 4:30 ` Harry Wentland
2019-12-03 14:35 ` [PATCH v8 05/17] drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 06/17] drm/dp_mst: Add new quirk for Synaptics MST hubs mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 07/17] drm/amd/display: Initialize DSC PPS variables to 0 mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 08/17] drm/amd/display: Validate DSC caps on MST endpoints mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 09/17] drm/amd/display: Write DSC enable to MST DPCD mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 10/17] drm/dp_mst: Manually overwrite PBN divider for calculating timeslots mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 21:52 ` kbuild test robot
2019-12-03 21:52 ` kbuild test robot
2019-12-03 21:52 ` kbuild test robot
2019-12-07 0:24 ` Lyude Paul
2019-12-07 0:24 ` Lyude Paul
2019-12-09 14:07 ` Mikita Lipski
2019-12-09 14:07 ` Mikita Lipski
2019-12-03 14:35 ` [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-05 19:28 ` Harry Wentland
2019-12-05 19:28 ` Harry Wentland
2019-12-07 0:30 ` Lyude Paul
2019-12-07 0:30 ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 13/17] drm/amd/display: Add PBN per slot calculation for DSC mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 14:35 ` [PATCH v8 14/17] drm/amd/display: MST DSC compute fair share mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-07 0:53 ` Lyude Paul
2019-12-07 0:53 ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 15/17] drm/amd/display: Recalculate VCPI slots for new DSC connectors mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-07 0:52 ` Lyude Paul
2019-12-07 0:52 ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-03 22:40 ` kbuild test robot
2019-12-03 22:40 ` kbuild test robot
2019-12-03 22:40 ` kbuild test robot
2019-12-07 0:51 ` Lyude Paul
2019-12-07 0:51 ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 17/17] drm/amd/display: Trigger modesets on MST DSC connectors mikita.lipski
2019-12-03 14:35 ` mikita.lipski
2019-12-07 0:53 ` Lyude Paul
2019-12-07 0:53 ` Lyude Paul
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