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12 months agodrm/amd/display: Remove redundant ternary operation
Ivan Lipski [Fri, 31 May 2024 20:05:27 +0000 (16:05 -0400)] 
drm/amd/display: Remove redundant ternary operation

[WHY]
Coverity analysis flagged this ternary operation as
DEADCODE.

Since 'total_y_free_entry' is initialized as 0x200 and
'total_c_free_entry' is initialized as 0x140, and they
never change values before the ternary operator, so
'total_y_free_entry' is always greater 'total_c_free_entry',
'so small_free_entry' is always set to 'total_c_free_entry'.

[HOW]
Replace the ternary operator with the variable declaration.

Signed-off-by: Ivan Lipski <ivlipski@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Remove unreachable check
Ivan Lipski [Fri, 31 May 2024 20:31:02 +0000 (16:31 -0400)] 
drm/amd/display: Remove unreachable check

[WHY]
Coverity analysis flagged this code as DEADCODE
since the condition and return in the outer loop
are never reached.

All operations with the 'dwb_pipe' variable happen
in the inner loop, that already contains the same
check with the 'MAX_DWB_PIPES'. The later
check condition cannot occur before the check
condition in the inner loop, thus the later
condition is unreacable.

[HOW]
Remove the unreachable condition.

Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Ivan Lipski <ivlipski@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Remove redundant if conditions
Ivan Lipski [Fri, 31 May 2024 18:48:41 +0000 (14:48 -0400)] 
drm/amd/display: Remove redundant if conditions

[WHY]
Coverity analysis flagged the two if conditions in
dcn30_dpp.c and dcn401_dpp.c as DEADCODE since they
are never true, since the variable
'program_prealpha_dealpha' is initialized at 0 and
never chagnes.

[HOW]
Removed the variable 'program_prealpha_dealpha' and
the if conditions.

Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Ivan Lipski <ivlipski@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: add odm_slice_rect parameter in spl_in
Wenjing Liu [Thu, 25 Apr 2024 16:01:34 +0000 (12:01 -0400)] 
drm/amd/display: add odm_slice_rect parameter in spl_in

[why]
OPP input rect aka odm slice rect is a hardware dependent parameter that
can't be determined by SPL software logic. Therefore we need to
explicitly pass odm slice rect in. So ODM slice rect calculation is
moved out of SPL.

[how]
add odm_slice_rect parameter in spl_in

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: use even ODM slice width for two pixels per container
Wenjing Liu [Wed, 17 Apr 2024 19:23:08 +0000 (15:23 -0400)] 
drm/amd/display: use even ODM slice width for two pixels per container

[why]
When optc uses two pixel per container, each ODM slice width must be an
even number.

[how]
If ODM slice width is odd number increase it by 1.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Fix Replay Desync Error Test
Dennis Chan [Tue, 2 Apr 2024 02:58:01 +0000 (10:58 +0800)] 
drm/amd/display: Fix Replay Desync Error Test

When PHY power off, the DP_SEC_CNTL cannot be configured and cause
disable Adaptive sync SDP failed. Regarding the issue, the driver will
disabled AS-SDP in replay state machine.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Dennis Chan <dennis.chan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Replay + IPS + ABM in Full Screen VPB
ChunTao Tso [Mon, 8 Jan 2024 05:46:59 +0000 (13:46 +0800)] 
drm/amd/display: Replay + IPS + ABM in Full Screen VPB

[Why]
Because ABM will wait VStart to start getting histogram data, it will
cause we can't enter IPS while full screnn video playing.

[How]
Modify the panel refresh rate to the maximun multiple of current refresh
rate

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: ChunTao Tso <ChunTao.Tso@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Expand supported Replay residency mode
Leon Huang [Mon, 4 Mar 2024 08:52:25 +0000 (16:52 +0800)] 
drm/amd/display: Expand supported Replay residency mode

[Why]
Dmub provides several Replay residency calculation methods, but current
interface only supports either ALPM or PHY mode

[How]
Modify the interface for supporting different types of Replay residency
calculation.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Leon Huang <Leon.Huang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Replay low hz
ChunTao Tso [Tue, 20 Feb 2024 09:08:39 +0000 (17:08 +0800)] 
drm/amd/display: Replay low hz

[Why]
The original coasting vtotal is 2 bytes, and it need to be amended to 4
bytes because low hz case.

[How]
Amend coasting vtotal from 2 bytes to 4 bytes.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: ChunTao Tso <ChunTao.Tso@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Use TPS3 for ALPM on Specific Panel
pochchan [Thu, 1 Dec 2022 05:27:49 +0000 (13:27 +0800)] 
drm/amd/display: Use TPS3 for ALPM on Specific Panel

For some specific panel, it need to use TPS3 rather than use TP2 in ALPM
when DSC is enabled.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: pochchan <pochchan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Wake DMCUB before sending a command for replay feature
Nicholas Kazlauskas [Mon, 4 Dec 2023 21:35:04 +0000 (16:35 -0500)] 
drm/amd/display: Wake DMCUB before sending a command for replay feature

[Why]
We can hang in place trying to send commands when the DMCUB isn't
powered on.

[How]
For functions that execute within a DC context or DC lock we can wrap
the direct calls to dm_execute_dmub_cmd/list with code that exits idle
power optimizations and reallows once we're done with the command
submission on success.

For DM direct submissions the DM will need to manage the enter/exit
sequencing manually.

We cannot invoke a DMCUB command directly within the DM execution helper
or we can deadlock.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Don't use fsleep for PSR exit waits on dmub replay
Nicholas Kazlauskas [Wed, 27 Sep 2023 19:06:41 +0000 (15:06 -0400)] 
drm/amd/display: Don't use fsleep for PSR exit waits on dmub replay

[Why]
These functions can be called from high IRQ levels and the OS will hang
if it tries to use a usleep_highres or a msleep.

[How]
Replace the flseep with a udelay for dmub_replay_enable.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: revert "take runtime pm reference when we attach a buffer" v2
Christian König [Wed, 5 Jun 2024 11:27:20 +0000 (13:27 +0200)] 
drm/amdgpu: revert "take runtime pm reference when we attach a buffer" v2

This reverts commit b8c415e3bf98 ("drm/amdgpu: take runtime pm reference
when we attach a buffer") and commit 425285d39afd ("drm/amdgpu: add amdgpu
runpm usage trace for separate funcs").

Taking a runtime pm reference for DMA-buf is actually completely
unnecessary and even dangerous.

The problem is that calling pm_runtime_get_sync() from the DMA-buf
callbacks is illegal because we have the reservation locked here
which is also taken during resume. So this would deadlock.

When the buffer is in GTT it is still accessible even when the GPU
is powered down and when it is in VRAM the buffer gets migrated to
GTT before powering down.

The only use case which would make it mandatory to keep the runtime
pm reference would be if we pin the buffer into VRAM, and that's not
something we currently do.

v2: improve the commit message

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
12 months agodrm/amd/display: Use dc wake for get the replay state
Rodrigo Siqueira [Tue, 28 May 2024 17:10:55 +0000 (11:10 -0600)] 
drm/amd/display: Use dc wake for get the replay state

Use dc_wake_and_execute_gpint with DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY to
get the replay state.

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine imu firmware loading
Yang Wang [Thu, 30 May 2024 15:15:01 +0000 (23:15 +0800)] 
drm/amdgpu: refine imu firmware loading

refine imu firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine pmfw/smu firmware loading
Yang Wang [Thu, 30 May 2024 15:21:51 +0000 (23:21 +0800)] 
drm/amdgpu: refine pmfw/smu firmware loading

refine pmfw/smu firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine gmc firmware loading
Yang Wang [Thu, 30 May 2024 15:28:35 +0000 (23:28 +0800)] 
drm/amdgpu: refine gmc firmware loading

refine gmc firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine vpe firmware loading
Yang Wang [Thu, 30 May 2024 15:34:26 +0000 (23:34 +0800)] 
drm/amdgpu: refine vpe firmware loading

refine vpe firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine vcn firmware loading
Yang Wang [Thu, 30 May 2024 15:33:27 +0000 (23:33 +0800)] 
drm/amdgpu: refine vcn firmware loading

refine vcn firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: move aca/mca init functions into ras_init() stage
Yang Wang [Tue, 4 Jun 2024 08:30:41 +0000 (16:30 +0800)] 
drm/amdgpu: move aca/mca init functions into ras_init() stage

adjust the function position to better match aca/mca fini code in ras_fini().

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: fix overflowed constant warning in mmhub_set_clockgating()
Bob Zhou [Fri, 7 Jun 2024 08:33:35 +0000 (16:33 +0800)] 
drm/amdgpu: fix overflowed constant warning in mmhub_set_clockgating()

To fix potential overflowed constant warning, modify the variables to u32
for getting the return value of RREG32_SOC15().

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: Indicate CU havest info to CP
Harish Kasiviswanathan [Wed, 5 Jun 2024 13:30:50 +0000 (09:30 -0400)] 
drm/amdgpu: Indicate CU havest info to CP

To achieve full occupancy CP hardware needs to know if CUs in SE are
symmetrically or asymmetrically harvested

v2: Reset is_symmetric_cus for each loop

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: Skip coredump during resets for debug
Lijo Lazar [Fri, 31 May 2024 12:28:54 +0000 (17:58 +0530)] 
drm/amdgpu: Skip coredump during resets for debug

Skip scheduling coredump when gpu reset is intentionally triggered
through debugfs.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine sdma firmware loading
Yang Wang [Thu, 30 May 2024 15:09:42 +0000 (23:09 +0800)] 
drm/amdgpu: refine sdma firmware loading

refine sdma firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine psp firmware loading
Yang Wang [Thu, 30 May 2024 14:56:16 +0000 (22:56 +0800)] 
drm/amdgpu: refine psp firmware loading

refine psp firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add lock in kfd_process_dequeue_from_device
Yunxiang Li [Mon, 3 Jun 2024 16:29:30 +0000 (12:29 -0400)] 
drm/amdgpu: add lock in kfd_process_dequeue_from_device

We need to take the reset domain lock before talking to MES. While in
this case we can take the lock inside the mes helper. We can't do so for
most other mes helpers since they are used during reset. So for
consistency sake we add the lock here.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine mes firmware loading
Yang Wang [Thu, 30 May 2024 14:51:03 +0000 (22:51 +0800)] 
drm/amdgpu: refine mes firmware loading

v1:
refine mes firmware loading

v2:
use dev_info instead of DRM_INFO

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: Add missing locking for MES API calls
Mukul Joshi [Wed, 5 Jun 2024 22:48:55 +0000 (18:48 -0400)] 
drm/amdgpu: Add missing locking for MES API calls

Add missing locking at a few places when calling MES APIs to ensure
exclusive access to MES queue.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Set default brightness according to ACPI
Mario Limonciello [Fri, 7 Jun 2024 06:02:28 +0000 (01:02 -0500)] 
drm/amd/display: Set default brightness according to ACPI

Currently, amdgpu will always set up the brightness at 100% when it
loads.  However this is jarring when the BIOS has it previously
programmed to a much lower value.

The ACPI ATIF method includes two members for "ac_level" and "dc_level".
These represent the default values that should be used if the system is
brought up in AC and DC respectively.

Use these values to set up the default brightness when the backlight
device is registered.

v2: squash in ACPI fix

Reviewed-by: Leo Li <sunpeng.li@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: drop some kernel messages in VCN code
David (Ming Qiang) Wu [Thu, 30 May 2024 14:50:59 +0000 (10:50 -0400)] 
drm/amdgpu: drop some kernel messages in VCN code

Similar to commit 813e7d4cd05e where some kernel log
messages are dropped. With this commit, more log
messages in older version of VCN/JPEG code are dropped.

Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: David (Ming Qiang) Wu <David.Wu3@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agoRevert "drm/amd/display: Add NULL check for 'afb' before dereferencing in amdgpu_dm_p...
Ivan Lipski [Fri, 7 Jun 2024 16:33:59 +0000 (12:33 -0400)] 
Revert "drm/amd/display: Add NULL check for 'afb' before dereferencing in amdgpu_dm_plane_handle_cursor_update"

[WHY]
This patch is a dupplicate implementation of 14bcf29b, which we
are reverting due to a regression with kms_plane_cursor IGT tests.

This reverts commit 38e6f715b02b572f74677eb2f29d3b4bc6f1ddff.

Reviewed-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Tested-by: George Zhang <George.zhang@amd.com>
Signed-off-by: Ivan Lipski <ivlipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agoRevert "drm/amd/display: Add null check for 'afb' in amdgpu_dm_update_cursor"
Ivan Lipski [Fri, 7 Jun 2024 16:33:58 +0000 (12:33 -0400)] 
Revert "drm/amd/display: Add null check for 'afb' in amdgpu_dm_update_cursor"

[WHY]
This commit introduced a regression with kms_plane_cursor IGT
tests, causing AMD Asics to fail these tests.

This reverts commit ce66ffd9813c8bd73e21b96d6476e5fb32b727c7.

Reviewed-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Tested-by: George Zhang <George.zhang@amd.com>
Signed-off-by: Ivan Lipski <ivlipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: refine gpu_info firmware loading
Yang Wang [Thu, 30 May 2024 14:47:19 +0000 (22:47 +0800)] 
drm/amdgpu: refine gpu_info firmware loading

refine gpu_info firmware loading

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: prevent register access while in IPS
Hamza Mahfooz [Mon, 3 Jun 2024 14:16:45 +0000 (10:16 -0400)] 
drm/amd/display: prevent register access while in IPS

We can't read/write to DCN registers while in IPS. Since, that can cause
the system to hang. So, before proceeding with the access in that
scenario, force the system out of IPS.

Cc: stable@vger.kernel.org # 6.6+
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: enhance amdgpu_ucode_request() function flexibility
Yang Wang [Thu, 30 May 2024 14:11:01 +0000 (22:11 +0800)] 
drm/amdgpu: enhance amdgpu_ucode_request() function flexibility

v1:
Adding formatting string feature to improve function flexibility.

v2:
modify macro name to ADMGPU_UCODE_MAX_NAME.

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: fix the overflowed constant warning for RREG32_SOC15()
Bob Zhou [Tue, 4 Jun 2024 07:08:29 +0000 (15:08 +0800)] 
drm/amdgpu: fix the overflowed constant warning for RREG32_SOC15()

To fix potential overflowed constant warning reported by Coverity,
modify the variables to uint32_t.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add lock in amdgpu_gart_invalidate_tlb
Yunxiang Li [Fri, 24 May 2024 21:11:30 +0000 (17:11 -0400)] 
drm/amdgpu: add lock in amdgpu_gart_invalidate_tlb

We need to take the reset domain lock before flush hdp. We can't put the
lock inside amdgpu_device_flush_hdp itself because it is used during
reset where we already take the write side lock.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: fix locking scope when flushing tlb
Yunxiang Li [Thu, 23 May 2024 11:48:19 +0000 (07:48 -0400)] 
drm/amdgpu: fix locking scope when flushing tlb

Which method is used to flush tlb does not depend on whether a reset is
in progress or not. We should skip flush altogether if the GPU will get
reset. So put both path under reset_domain read lock.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
12 months agodrm/amdgpu: call flush_gpu_tlb directly in gfxhub enable
Yunxiang Li [Tue, 4 Jun 2024 16:56:56 +0000 (12:56 -0400)] 
drm/amdgpu: call flush_gpu_tlb directly in gfxhub enable

Here since we are in reset and takes the reset_domain write side lock
already. We can't use the flush tlb helper which tries to take the read
side.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: use helper in amdgpu_gart_unbind
Yunxiang Li [Fri, 17 May 2024 16:53:30 +0000 (12:53 -0400)] 
drm/amdgpu: use helper in amdgpu_gart_unbind

When amdgpu_gart_invalidate_tlb helper is introduced this part was left
out of the conversion. Avoid the code duplication here.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: remove tlb flush in amdgpu_gtt_mgr_recover
Yunxiang Li [Wed, 22 May 2024 15:00:08 +0000 (11:00 -0400)] 
drm/amdgpu: remove tlb flush in amdgpu_gtt_mgr_recover

At this point the gart is not set up, there's no point to invalidate tlb
here and it could even be harmful.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu/kfd: remove is_hws_hang and is_resetting
Yunxiang Li [Fri, 24 May 2024 17:46:50 +0000 (13:46 -0400)] 
drm/amdgpu/kfd: remove is_hws_hang and is_resetting

is_hws_hang and is_resetting serves pretty much the same purpose and
they all duplicates the work of the reset_domain lock, just check that
directly instead. This also eliminate a few bugs listed below and get
rid of dqm->ops.pre_reset.

kfd_hws_hang did not need to avoid scheduling another reset. If the
on-going reset decided to skip GPU reset we have a bad time, otherwise
the extra reset will get cancelled anyway.

remove_queue_mes forgot to check is_resetting flag compared to the
pre-MES path unmap_queue_cpsch, so it did not block hw access during
reset correctly.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: fix sriov host flr handler
Yunxiang Li [Fri, 24 May 2024 20:22:28 +0000 (16:22 -0400)] 
drm/amdgpu: fix sriov host flr handler

We send back the ready to reset message before we stop anything. This is
wrong. Move it to when we are actually ready for the FLR to happen.

In the current state since we take tens of seconds to stop everything,
it is very likely that host would give up waiting and reset the GPU
before we send ready, so it would be the same as before. But this gets
rid of the hack with reset_domain locking and also let us tell how slow
ready to reset actually is from the host. The ready to reset speed can
be improved later.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add skip_hw_access checks for sriov
Yunxiang Li [Fri, 24 May 2024 20:14:55 +0000 (16:14 -0400)] 
drm/amdgpu: add skip_hw_access checks for sriov

Accessing registers via host is missing the check for skip_hw_access and
the lockdep check that comes with it.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add reset source in various cases
Eric Huang [Tue, 4 Jun 2024 15:46:56 +0000 (11:46 -0400)] 
drm/amdgpu: add reset source in various cases

To fullfill the reset event description.

Suggested-by: Lijo Lazar <Lijo.Lazar@amd.com>
Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: fix NULL pointer in amdgpu_reset_get_desc
Eric Huang [Thu, 6 Jun 2024 15:37:20 +0000 (11:37 -0400)] 
drm/amdgpu: fix NULL pointer in amdgpu_reset_get_desc

amdgpu_job_ring may return NULL, which causes kernel NULL
pointer error, using another way to print ring name instead
of ring->name.

Suggested-by: Lijo Lazar <Lijo.Lazar@amd.com>
Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: dc 3.2.287
Aric Cyr [Sun, 26 May 2024 22:59:15 +0000 (18:59 -0400)] 
drm/amd/display: dc 3.2.287

This version brings the following changes:
- Add sequential ONO sequencing for DCN35
- Add new GPINT command definitions
- reduce ODM slice count to initial new dc state only when needed
- Enable copying of bounding box data from VBIOS DMUB
- Guard reading 3DLUT registers for dcn32/dcn35

Reviewed-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Fix DSC slice and delay calculations
Sung Joon Kim [Fri, 10 May 2024 16:18:31 +0000 (12:18 -0400)] 
drm/amd/display: Fix DSC slice and delay calculations

[why]
There are other factors that determine the number
of DSC slices. The slices should not be determined
in DML but retrieve the value calculated from driver.

[how]
Update the logic to determine DSC slice.
Make DSCDelay per display pipe.

Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Increase MAX_LINKS by 2
Alex Hung [Wed, 15 May 2024 16:04:24 +0000 (10:04 -0600)] 
drm/amd/display: Increase MAX_LINKS by 2

Two additional virtual links are created and thus increasing size
for dc->links by two.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Guard reading 3DLUT registers for dcn32/dcn35
Nicholas Kazlauskas [Tue, 21 May 2024 14:41:52 +0000 (10:41 -0400)] 
drm/amd/display: Guard reading 3DLUT registers for dcn32/dcn35

[Why]
3DLUT is not part of the DPP on DCN32/DCN35 ASIC and these registers
now exist in MCM state.

[How]
Add guards when reading DPP state based on whether the register has a
valid offset.

Reviewed-by: Sung joon Kim <sungjoon.kim@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Various DML2 fixes for FAMS2
Dillon Varone [Mon, 20 May 2024 15:12:07 +0000 (11:12 -0400)] 
drm/amd/display: Various DML2 fixes for FAMS2

- Ensure SubVP stream settings match ODM policy
- Fix MALL size calculations when DCC is enabled
- Fail if any stream fails DRR policy check

Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Program DIG FE source select for DVI before PHY en
Alvin Lee [Mon, 20 May 2024 16:52:31 +0000 (12:52 -0400)] 
drm/amd/display: Program DIG FE source select for DVI before PHY en

[Description]
In newer DCN's the programming of SYMCLK_FE_SRC_SEL depends on
the value of DIG_FE_SOURCE_SELECT. If DIG_FE_SOURCE_SELECT is not
already programmed at the time of PHY / DIG enable then the FW
sequence will program an incorrect SYMCLK source. Ensure that we
program DIG_FE_SOURCE_SELECT for all DIO scenarios (DVI in this
particular case) before going through the PHY / DIG enable sequence.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/pm: remove dead code in navi10_emit_clk_levels and navi10_print_clk_levels
Jesse Zhang [Mon, 3 Jun 2024 05:16:36 +0000 (13:16 +0800)] 
drm/amd/pm: remove dead code in navi10_emit_clk_levels and navi10_print_clk_levels

Since the range of the varibable i is 0 - 3.
So execution cannot reach this statement: default.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: remove dead code in atom_get_src_int
Jesse Zhang [Wed, 5 Jun 2024 07:44:38 +0000 (15:44 +0800)] 
drm/amdgpu: remove dead code in atom_get_src_int

Since the range of align is 0~7, the expression is: align = (attr >> 3) & 7.
In the case of ATOM_ARG_IMM, the code cannot reach the default case.
So there is no need for "break".

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Introduce deferred Replay coasting vtotal update
ChunTao Tso [Mon, 13 May 2024 05:48:19 +0000 (13:48 +0800)] 
drm/amd/display: Introduce deferred Replay coasting vtotal update

Add functions to defer updating of coasting vtotal after source refresh rate update.

Reviewed-by: Robin Chen <robin.chen@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: ChunTao Tso <chuntao.tso@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add NULL check for 'afb' before dereferencing in amdgpu_dm_plane_han...
Srinivasan Shanmugam [Wed, 5 Jun 2024 15:43:40 +0000 (21:13 +0530)] 
drm/amd/display: Add NULL check for 'afb' before dereferencing in amdgpu_dm_plane_handle_cursor_update

This commit adds a null check for the 'afb' variable in the
amdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was
assumed to be null, but was used later in the code without a null check.
This could potentially lead to a null pointer dereference.

Fixes the below:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)

Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add null check for 'afb' in amdgpu_dm_update_cursor
Srinivasan Shanmugam [Wed, 5 Jun 2024 11:12:48 +0000 (16:42 +0530)] 
drm/amd/display: Add null check for 'afb' in amdgpu_dm_update_cursor

This commit adds a null check for the 'afb' variable in the
amdgpu_dm_update_cursor function. Previously, 'afb' was assumed to be
null at line 8388, but was used later in the code without a null check.
This could potentially lead to a null pointer dereference.

Fixes the below:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8433 amdgpu_dm_update_cursor()
error: we previously assumed 'afb' could be null (see line 8388)

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c
    8379 static void amdgpu_dm_update_cursor(struct drm_plane *plane,
    8380                                     struct drm_plane_state *old_plane_state,
    8381                                     struct dc_stream_update *update)
    8382 {
    8383         struct amdgpu_device *adev = drm_to_adev(plane->dev);
    8384         struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb);
    8385         struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc;
                                         ^^^^^

    8386         struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL;
    8387         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
    8388         uint64_t address = afb ? afb->address : 0;
                                    ^^^^^ Checks for NULL

    8389         struct dc_cursor_position position = {0};
    8390         struct dc_cursor_attributes attributes;
    8391         int ret;
    8392
    8393         if (!plane->state->fb && !old_plane_state->fb)
    8394                 return;
    8395
    8396         drm_dbg_atomic(plane->dev, "crtc_id=%d with size %d to %d\n",
    8397                        amdgpu_crtc->crtc_id, plane->state->crtc_w,
    8398                        plane->state->crtc_h);
    8399
    8400         ret = amdgpu_dm_plane_get_cursor_position(plane, crtc, &position);
    8401         if (ret)
    8402                 return;
    8403
    8404         if (!position.enable) {
    8405                 /* turn off cursor */
    8406                 if (crtc_state && crtc_state->stream) {
    8407                         dc_stream_set_cursor_position(crtc_state->stream,
    8408                                                       &position);
    8409                         update->cursor_position = &crtc_state->stream->cursor_position;
    8410                 }
    8411                 return;
    8412         }
    8413
    8414         amdgpu_crtc->cursor_width = plane->state->crtc_w;
    8415         amdgpu_crtc->cursor_height = plane->state->crtc_h;
    8416
    8417         memset(&attributes, 0, sizeof(attributes));
    8418         attributes.address.high_part = upper_32_bits(address);
    8419         attributes.address.low_part  = lower_32_bits(address);
    8420         attributes.width             = plane->state->crtc_w;
    8421         attributes.height            = plane->state->crtc_h;
    8422         attributes.color_format      = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA;
    8423         attributes.rotation_angle    = 0;
    8424         attributes.attribute_flags.value = 0;
    8425
    8426         /* Enable cursor degamma ROM on DCN3+ for implicit sRGB degamma in DRM
    8427          * legacy gamma setup.
    8428          */
    8429         if (crtc_state->cm_is_degamma_srgb &&
    8430             adev->dm.dc->caps.color.dpp.gamma_corr)
    8431                 attributes.attribute_flags.bits.ENABLE_CURSOR_DEGAMMA = 1;
    8432
--> 8433         attributes.pitch = afb->base.pitches[0] / afb->base.format->cpp[0];
                                    ^^^^^                  ^^^^^
Unchecked dereferences

    8434
    8435         if (crtc_state->stream) {
    8436                 if (!dc_stream_set_cursor_attributes(crtc_state->stream,
    8437                                                      &attributes))
    8438                         DRM_ERROR("DC failed to set cursor attributes\n");
    8439
    8440                 update->cursor_attributes = &crtc_state->stream->cursor_attributes;
    8441
    8442                 if (!dc_stream_set_cursor_position(crtc_state->stream,
    8443                                                    &position))
    8444                         DRM_ERROR("DC failed to set cursor position\n");
    8445
    8446                 update->cursor_position = &crtc_state->stream->cursor_position;
    8447         }
    8448 }

Fixes: 66eba12a5482 ("drm/amd/display: Do cursor programming with rest of pipe")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add monitor patch skip disable crtc during psr and ips1
Lewis Huang [Fri, 17 May 2024 09:30:42 +0000 (17:30 +0800)] 
drm/amd/display: Add monitor patch skip disable crtc during psr and ips1

[Why]
For some panel, it cannot handle pseudo vblank set by otg resync
when leave psr

[How]
The monitor patch will keep otg_on during enter IPS1.
And then we don't need to do otg resync when wake up.

Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Lewis Huang <lewis.huang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: add set ips disable
Chiawen Huang [Mon, 20 May 2024 03:17:42 +0000 (11:17 +0800)] 
drm/amd/display: add set ips disable

[How&Why]
Once IPS active, all the DCN resources are
not be allowed to access.
It needs to a function for 3rd party to
on/off IPS.

Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Chiawen Huang <chiawen.huang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add recovery timeout to FAMS2
Dillon Varone [Fri, 17 May 2024 21:45:14 +0000 (17:45 -0400)] 
drm/amd/display: Add recovery timeout to FAMS2

[WHY&HOW]
Add 5ms timeout to trigger recovery and force allow P-State in DMUB.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Force max clocks unconditionally when p-state is unsupported
Dillon Varone [Thu, 16 May 2024 02:48:10 +0000 (22:48 -0400)] 
drm/amd/display: Force max clocks unconditionally when p-state is unsupported

[WHY&HOW]
UCLK and FCLK are updated together, so an FCLK update can also cause UCLK update
to SMU.  When this happens, the UCLK provided should be max if switching is
unsupported.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Change the order of setting DP_IS_USB_C flag
Wayne Lin [Tue, 14 May 2024 10:10:16 +0000 (18:10 +0800)] 
drm/amd/display: Change the order of setting DP_IS_USB_C flag

[Why]
enc10->base.features.flags.bits.DP_IS_USB_C will be overwritten if we set it
before initializing enc10->base.features

[How]
Determine DP_IS_USB_C after enc10->base.features is initialized. Besides,
bp_cap_info.DP_IS_USB_C will never be set in get_connector_speed_cap_info().
Remove the redudant code.

Reviewed-by: Roman Li <roman.li@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: bypass ODM before CRTC off
Yihan Zhu [Fri, 17 May 2024 12:55:44 +0000 (08:55 -0400)] 
drm/amd/display: bypass ODM before CRTC off

[WHY]
OPPs couldn't disconnect from the ODM that cause the double buffer pending not being latched due to missing VUPDATE.

[HOW]
Moving memory blanking before OTG turn off to make sure double buffer latched correctly.

Reviewed-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Yihan Zhu <yihan.zhu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display/dcn401: use pre-allocated temp structure for bounding box
Alex Deucher [Tue, 4 Jun 2024 18:01:58 +0000 (14:01 -0400)] 
drm/amd/display/dcn401: use pre-allocated temp structure for bounding box

This mirrors what the driver does for older DCN generations.

Should fix:
[   26.924055] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306
[   26.924060] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1022, name: modprobe
[   26.924063] preempt_count: 2, expected: 0
[   26.924064] RCU nest depth: 0, expected: 0
[   26.924066] Preemption disabled at:
[   26.924067] [<ffffffffc089e5e0>] dc_fpu_begin+0x30/0xd0 [amdgpu]
[   26.924322] CPU: 9 PID: 1022 Comm: modprobe Not tainted 6.8.0+ #20
[   26.924325] Hardware name: System manufacturer System Product Name/CROSSHAIR VI HERO, BIOS 6302 10/23/2018
[   26.924326] Call Trace:
[   26.924327]  <TASK>
[   26.924329]  dump_stack_lvl+0x37/0x50
[   26.924333]  ? dc_fpu_begin+0x30/0xd0 [amdgpu]
[   26.924589]  dump_stack+0x10/0x20
[   26.924592]  __might_resched+0x16a/0x1c0
[   26.924596]  __might_sleep+0x42/0x70
[   26.924598]  __kmalloc_node_track_caller+0x2ad/0x4b0
[   26.924601]  ? dm_helpers_allocate_gpu_mem+0x12/0x20 [amdgpu]
[   26.924855]  ? dcn401_update_bw_bounding_box+0x2a/0xf0 [amdgpu]
[   26.925122]  kmemdup+0x20/0x50
[   26.925124]  ? kernel_fpu_begin_mask+0x6b/0xe0
[   26.925127]  ? kmemdup+0x20/0x50
[   26.925129]  dcn401_update_bw_bounding_box+0x2a/0xf0 [amdgpu]
[   26.925393]  dc_create+0x311/0x670 [amdgpu]
[   26.925649]  amdgpu_dm_init+0x2aa/0x1fa0 [amdgpu]
[   26.925903]  ? irq_work_queue+0x38/0x50
[   26.925907]  ? vprintk_emit+0x1e7/0x270
[   26.925910]  ? dev_printk_emit+0x83/0xb0
[   26.925914]  ? amdgpu_device_rreg+0x17/0x20 [amdgpu]
[   26.926133]  dm_hw_init+0x14/0x30 [amdgpu]

v2: drop extra memcpy

Fixes: 669d6b078ed8 ("drm/amd/display: avoid large on-stack structures")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: George Zhang <george.zhang@amd.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: harry.wentland@amd.com
Cc: sunpeng.li@amd.com
Cc: Rodrigo.Siqueira@amd.com
12 months agodrm/amd/display: use pre-allocated temp structure for bounding box
Alex Deucher [Tue, 4 Jun 2024 15:46:04 +0000 (11:46 -0400)] 
drm/amd/display: use pre-allocated temp structure for bounding box

This mirrors what the driver does for older DCN generations.

Should fix:

BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 449, name: kworker/u64:8
preempt_count: 2, expected: 0
RCU nest depth: 0, expected: 0
Preemption disabled at:
ffffffffc0ce1580>] dc_fpu_begin+0x30/0xd0 [amdgpu]
CPU: 5 PID: 449 Comm: kworker/u64:8 Tainted: G        W          6.8.0+ #35
Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING WIFI II, BIOS 4204 02/24/2022
Workqueue: events_unbound async_run_entry_fn

v2: drop extra memcpy

Fixes: 88c61827cedc ("drm/amd/display: dynamically allocate dml2_configuration_options structures")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: George Zhang <George.zhang@amd.com> (v1)
Suggested-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: George Zhang <george.zhang@amd.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: harry.wentland@amd.com
Cc: sunpeng.li@amd.com
Cc: Rodrigo.Siqueira@amd.com
12 months agodrm/amdgpu: add sdma 7.0 support for copy dcc buffer
Frank Min [Wed, 10 Apr 2024 13:40:16 +0000 (21:40 +0800)] 
drm/amdgpu: add sdma 7.0 support for copy dcc buffer

1. Add dcc buffer flag for copy buffer
2. Add sdma 7.0 support copy dcc buffer

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: support for DCC feature
Likun Gao [Thu, 11 Jan 2024 08:44:55 +0000 (16:44 +0800)] 
drm/amdgpu: support for DCC feature

Deal with AMDGPU_GEM_CREATE_GFX12_DCC to set DCC bit
when needed.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add additional VM bits
Alex Deucher [Tue, 6 Feb 2024 21:03:17 +0000 (16:03 -0500)] 
drm/amdgpu: add additional VM bits

Add additional VM PTE bits.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Simplify if conditions
Thorsten Blum [Tue, 4 Jun 2024 10:37:37 +0000 (12:37 +0200)] 
drm/amd/display: Simplify if conditions

The if conditions !A || A && B can be simplified to !A || B.

Fixes the following Coccinelle/coccicheck warnings reported by
excluded_middle.cocci:

WARNING !A || A && B is equivalent to !A || B
WARNING !A || A && B is equivalent to !A || B
WARNING !A || A && B is equivalent to !A || B

Compile-tested only.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Extend PSRSU residency mode
Jack Chang [Fri, 10 May 2024 02:38:19 +0000 (10:38 +0800)] 
drm/amd/display: Extend PSRSU residency mode

1. To support multiple PSRSU residency measurement mode

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Jack Chang <jack.chang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add outbox notification support for HPD redetect
Nicholas Kazlauskas [Wed, 15 May 2024 18:53:56 +0000 (14:53 -0400)] 
drm/amd/display: Add outbox notification support for HPD redetect

[Why]
HPD sense changes can occur during low power states and need to be
notified from firmware to driver. Upon notification the hotplug
redetection routines should execute.

[How]
Add Support in DMUB srv and DMUB srv stat for receiving these
notifications. DM can hook them up and process the HPD redetection
once received.

Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add RAS is_rma flag
Tao Zhou [Thu, 23 May 2024 03:23:20 +0000 (11:23 +0800)] 
drm/amdgpu: add RAS is_rma flag

Set the flag to true if bad page number reaches threshold.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add null checks for 'stream' and 'plane' before dereferencing
Srinivasan Shanmugam [Mon, 27 May 2024 14:45:21 +0000 (20:15 +0530)] 
drm/amd/display: Add null checks for 'stream' and 'plane' before dereferencing

This commit adds null checks for the 'stream' and 'plane' variables in
the dcn30_apply_idle_power_optimizations function. These variables were
previously assumed to be null at line 922, but they were used later in
the code without checking if they were null. This could potentially lead
to a null pointer dereference, which would cause a crash.

The null checks ensure that 'stream' and 'plane' are not null before
they are used, preventing potential crashes.

Fixes the below static smatch checker:
drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:938 dcn30_apply_idle_power_optimizations() error: we previously assumed 'stream' could be null (see line 922)
drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:940 dcn30_apply_idle_power_optimizations() error: we previously assumed 'plane' could be null (see line 922)

Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/pm: remove dead code in si_convert_power_level_to_smc
Jesse Zhang [Wed, 5 Jun 2024 07:16:57 +0000 (15:16 +0800)] 
drm/amd/pm: remove dead code in si_convert_power_level_to_smc

Since gmc_pg is false, setting mcFlags with SISLANDS_SMC_MC_PG_EN  cannot be reach.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Prevent IPX From Link Detect and Set Mode
Fangzhi Zuo [Fri, 10 May 2024 19:23:02 +0000 (15:23 -0400)] 
drm/amd/display: Prevent IPX From Link Detect and Set Mode

IPX involvment proven to affect LT, causing link loss. Need to prevent
IPX enabled in LT process in which link detect and set mode are main
procedures that have LT taken place.

Reviewed-by: Roman Li <roman.li@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdkfd: remove logically dead code
Jesse Zhang [Thu, 30 May 2024 06:07:30 +0000 (14:07 +0800)] 
drm/amdkfd: remove logically dead code

idr_for_each_entry can ensure that mem is not empty during the loop.
So don't need check mem again.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: fix failure mapping legacy queue when FLR
Lin.Cao [Fri, 31 May 2024 06:02:39 +0000 (14:02 +0800)] 
drm/amdgpu: fix failure mapping legacy queue when FLR

Flag "mes.ring.shced.ready" will be set as true after mes hw init and set
as false when mes hw fini to avoid duplicate initialization. But hw fini
will not be called when function level reset, which will cause mes hw
init be skipped during FLR, which will leads to mapping legacy queue
fail. Set this flag as false when post reset will fix this issue.

Signed-off-by: Lin.Cao <lincao12@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Fetch Mall caps from DC
Daniel Sa [Thu, 16 May 2024 16:03:34 +0000 (12:03 -0400)] 
drm/amd/display: Fetch Mall caps from DC

[Why]
When performing P-State switching with Subvp on 8k (downscaled to 4k).
corruption can be seen on the screen. MALL data was not being fetched
from DC, and the system things there is more MALL space then what is
actually available.

[How]
Read MALL size from dc caps.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Daniel Sa <daniel.sa@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: fix YUV video color corruption in DCN401
Samson Tam [Wed, 15 May 2024 21:32:29 +0000 (17:32 -0400)] 
drm/amd/display: fix YUV video color corruption in DCN401

[Why]
Missing check causes sequence error which results in chroma
 filter coefficients not being updated in certain modes
 when we display YUV video in fullscreen.  This results in
 color corruption in video

[How]
Add back chroma_coef_mode check in dscl_set_scl_filter
 so that filter coefficients are calculated and updated when
 we have YUV surface

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdkfd: add reset cause in gpu pre-reset smi event
Eric Huang [Mon, 3 Jun 2024 16:04:59 +0000 (12:04 -0400)] 
drm/amdkfd: add reset cause in gpu pre-reset smi event

reset cause is requested by customer as additional
info for gpu reset smi event.

v2: integerate reset sources suggested by Lijo Lazar

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: Update soc24_enum.h and soc21_enum.h
Frank Min [Mon, 27 May 2024 05:22:16 +0000 (13:22 +0800)] 
drm/amdgpu: Update soc24_enum.h and soc21_enum.h

Update to latest changes.

Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: Set PTE_IS_PTE bit for gfx12
Frank Min [Mon, 3 Jun 2024 01:53:58 +0000 (09:53 +0800)] 
drm/amdgpu: Set PTE_IS_PTE bit for gfx12

Set PTE_IS_PTE bit while PRT is enabled on gfx12.

Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Updated optc401_set_drr to use dcn401 functions
Relja Vojvodic [Wed, 15 May 2024 18:15:48 +0000 (14:15 -0400)] 
drm/amd/display: Updated optc401_set_drr to use dcn401 functions

why:
optc_401_set_drr was using an old optc3 function to update vtotal min and max,
causing crashes when disabling FAMS2

how:
Updated dcn401 to point to opt401 function for vtotal updates. This version of
the function has FAMS2 logic that allows for FAMS2 to be disabled.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Relja Vojvodic <relja.vojvodic@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: add reset sources in gpu reset context
Eric Huang [Mon, 3 Jun 2024 15:56:03 +0000 (11:56 -0400)] 
drm/amdgpu: add reset sources in gpu reset context

reset source or reset cause is very useful info
for reset context, it will be used by events API.

Suggested-by: Lijo Lazar <Lijo.Lazar@amd.com>
Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add UCLK p-state support message to dcn401
Dillon Varone [Tue, 14 May 2024 20:21:02 +0000 (16:21 -0400)] 
drm/amd/display: Add UCLK p-state support message to dcn401

[WHY&HOW]
Improves on the SMU interface to explicitly declare P-State support.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Use current_state when checking old_pipe subvp type
Alvin Lee [Tue, 14 May 2024 20:22:01 +0000 (16:22 -0400)] 
drm/amd/display: Use current_state when checking old_pipe subvp type

[Description]
When checking the subvp type of the previous state we must
pass in current_state to the interface instead of context
otherwise we will get the wrong result.

Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/pm: add missing error handling in function smu_v13_0_6_allocate_dpm_context
Bob Zhou [Fri, 31 May 2024 08:21:45 +0000 (16:21 +0800)] 
drm/amd/pm: add missing error handling in function smu_v13_0_6_allocate_dpm_context

Check return value to avoid null pointer dereference.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/pm: Fix the null pointer dereference for vega10_hwmgr
Bob Zhou [Fri, 31 May 2024 07:01:22 +0000 (15:01 +0800)] 
drm/amd/pm: Fix the null pointer dereference for vega10_hwmgr

Check return value and conduct null pointer handling to avoid null pointer dereference.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdgpu: Update the impelmentation of AMDGPU_PTE_MTYPE_VG10
Shane Xiao [Wed, 29 May 2024 10:12:39 +0000 (18:12 +0800)] 
drm/amdgpu: Update the impelmentation of AMDGPU_PTE_MTYPE_VG10

This patch changes the implementation of AMDGPU_PTE_MTYPE_VG10,
clear the bits before setting the new one.

Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: longlyao <Longlong.Yao@amd.com>
Signed-off-by: Shane Xiao <shane.xiao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdkfd: remove dead code in kfd_create_vcrat_image_gpu
Jesse Zhang [Thu, 30 May 2024 03:27:28 +0000 (11:27 +0800)] 
drm/amdkfd: remove dead code in kfd_create_vcrat_image_gpu

kfd_create_vcrat_image_gpu itself checks the avail_size at the start.
So the value of avail_size is at least VCRAT_SIZE_FOR_GPU(16384),
minus struct crat_header(40UL) and struct crat_subtype_compute(40UL) it cannot be less than 0.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdkfd: fix the kdf debugger issue
Jesse Zhang [Fri, 31 May 2024 01:56:40 +0000 (09:56 +0800)] 
drm/amdkfd: fix the kdf debugger issue

The expression caps | HSA_CAP_TRAP_DEBUG_PRECISE_MEMORY_OPERATIONS_SUPPORTED
and  caps | HSA_CAP_TRAP_DEBUG_PRECISE_ALU_OPERATIONS_SUPPORTED
are always 1/true regardless of the values of its operand.

Fixes: 9243240bed38 ("drm/amdkfd: enable single alu ops for gfx12")
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdkfd: Comment out the unused variable use_static in pm_map_queues_v9
Jesse Zhang [Fri, 31 May 2024 02:30:28 +0000 (10:30 +0800)] 
drm/amdkfd: Comment out the unused variable use_static in pm_map_queues_v9

To fix the warning about unused value,
remove the use_static and use the parameter is_static directly.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Move fpo_in_use to stream_status
Alvin Lee [Fri, 26 Apr 2024 21:28:46 +0000 (17:28 -0400)] 
drm/amd/display: Move fpo_in_use to stream_status

[Description]
Refactor code and move fpo_in_use into stream_status to avoid
unexpected changes to previous dc_state (i.e., current_state).
Since stream pointers are shared between current and new dc_states,
updating parameters of one stream will update the other as well
which causes unexpected behaviors (i.e., checking that fpo_in_use
isn't set in previous state and set in the new state is invalid).
To avoid incorrect updates to current_state, move the fpo_in_use flag
into dc_stream_status since stream_status is owned by dc and are not
shared between different dc_states.

Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Only program P-State force if pipe config changed
Alvin Lee [Fri, 26 Apr 2024 21:14:19 +0000 (17:14 -0400)] 
drm/amd/display: Only program P-State force if pipe config changed

[Description]
Today for MED update type we do not call update clocks. However, for FPO
the assumption is that update clocks should be called to disable P-State
switch before any HW programming since FPO in FW and driver are not
synchronized. This causes an issue where on a MED update, an FPO P-State
switch could be taking place, then driver forces P-State disallow in the below
code and prevents FPO from completing the sequence. In this case we add a check
to avoid re-programming (and thus re-setting) the P-State force register by
only reprogramming if the pipe was not previously Subvp or FPO. The assumption
is that the P-State force register should be programmed correctly the first
time SubVP / FPO was enabled, so there's no need to update / reset it if the
pipe config has never exited SubVP / FPO.

Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add retires when read DPCD
Joan Lee [Wed, 15 May 2024 02:23:01 +0000 (10:23 +0800)] 
drm/amd/display: Add retires when read DPCD

[why & how]
Sometimes read DPCD return fail while result not retrieved yet. Add
retries mechanism in Replay handle hpd irq to get real result.

Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Joan Lee <joan.lee@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Fix DML2 logic to set clk state to min
Nicholas Susanto [Tue, 14 May 2024 15:38:39 +0000 (11:38 -0400)] 
drm/amd/display: Fix DML2 logic to set clk state to min

[Why]

When an eDP with high clock states is going into s0i3, stream_count is
0. This causes DML to not update the clks to the lowest state and
blocking us to enter s0i3 since eDP is out of vmin.

[How]

When stream_count is 0, set all the clocks to the lowest state.

Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amdkfd: Handle deallocated VPGRs in gfx11+ trap handler
Jay Cornwall [Tue, 28 May 2024 20:55:56 +0000 (15:55 -0500)] 
drm/amdkfd: Handle deallocated VPGRs in gfx11+ trap handler

A wavefront may deallocate its VGPRs at the end of a program while
waiting for memory transactions to complete. If it subsequently
receives a context save exception it will be unable to save,
since this requires VGPRs. In this case the trap handler should
terminate the wavefront.

Fixes intermittent VM faults under context switching load.

V2: Use S_ENDPGM instead of S_ENDPGM_SAVED for performance counters

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Lancelot Six <lancelot.six@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Support new VA page table block size
Chris Park [Tue, 14 May 2024 17:55:18 +0000 (13:55 -0400)] 
drm/amd/display: Support new VA page table block size

[Why]
Page table definition increased up to 2MB.

[How]
Define new use case of page table for VA.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: workaround for oled eDP not lighting up on DCN401
Joshua Aberback [Mon, 13 May 2024 22:14:59 +0000 (18:14 -0400)] 
drm/amd/display: workaround for oled eDP not lighting up on DCN401

[Why]
Currently there's an issue on DCN401 that prevents oled eDP panels from
being lit up that is still under investigation. To unblock dev work
while investigating, we can work around the issue by skipping toggling
the enablement of the backlight.

[How]
 - new debug bit that will skip touching backlight enable DPCD for oled

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 months agodrm/amd/display: Add params of set_abm_event for VB Scaling
Chun-LiangChang [Fri, 10 May 2024 07:00:18 +0000 (02:00 -0500)] 
drm/amd/display: Add params of set_abm_event for VB Scaling

[Why]
Add parameters for set_abm_event to enable varibright scaling.
VariBright Scaling is a feature to refer to system states like

1. Power mode
2. Battery Life percent
3. FullScreen video
4. Backlight slider

to adjust variBright strength to get low power or user experience.

[How]
Add parameters of set_abm_event for VB Scaling

Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Chun-LiangChang <chuchang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>