Commit Graph

1400518 Commits

Author SHA1 Message Date
Likun Gao
a2a7e75020 drm/amdgpu: disable burst for gfx v12_1
Disable burst in GL1A and GLARBA for gfx v12_1.

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>
2026-01-05 16:26:25 -05:00
Mukul Joshi
a41d94a7bb drm/amdgpu: Setup Retry based thrashing prevention on GFX 12.1
Enable the new UTCL0 retry-based thrashing prevention on GFX 12.1.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:26:22 -05:00
Mukul Joshi
44fc86f2a3 drm/amdgpu: Program IH_VMID_LUT_INDEX register on GFX 12.1
For querying VMID <-> PASID mapping on GFX 12.1, we need to first
program the IH_VMID_LUT_INDEX before fetching the LUT mapping. Without
this TLB flush may not work.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Michael Chen <michael.chen@amd.com>
Reviewed-by:  Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:26:15 -05:00
Jinzhou Su
d3336c935e drm/amd/ras: Support physical address convert
Support physical address convert to current NPS
pages in uniras.

Signed-off-by: Jinzhou Su <jinzhou.su@amd.com>
Reviewed-by: YiPeng Chai <YiPeng.Chai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:26:12 -05:00
Jack Xiao
364f168f61 drm/amdgpu/gfx_v12_1: add mqd_stride_size input parameter
mqd_stride_size is used to calculate the next mqd offset
for cooperative dispatch.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:26:06 -05:00
Colin Ian King
03a4c89db2 drm/amdkfd: Fix a couple of spelling mistakes
There are a couple of spelling mistakes, one in a pr_warn message
and one in a seq_printf message. Fix these.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:26:00 -05:00
Bagas Sanjaya
d8ccbb5e22 drm/amdgpu: Describe @AMD_IP_BLOCK_TYPE_RAS in amd_ip_block_type enum
Sphinx reports kernel-doc warning:

WARNING: ./drivers/gpu/drm/amd/include/amd_shared.h:113 Enum value 'AMD_IP_BLOCK_TYPE_RAS' not described in enum 'amd_ip_block_type'

Describe the value to fix it.

Fixes: 7169e706c8 ("drm/amdgpu: Add ras module ip block to amdgpu discovery")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:25:29 -05:00
Bagas Sanjaya
b1e2a6a57a drm/amd/display: Don't use kernel-doc comment in dc_register_software_state struct
Sphinx reports kernel-doc warning:

WARNING: ./drivers/gpu/drm/amd/display/dc/dc.h:2796 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Software state variables used to program register fields across the display pipeline

Don't use kernel-doc comment syntax to fix it.

Fixes: b0ff344fe7 ("drm/amd/display: Add interface to capture expected HW state from SW state")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:24:16 -05:00
Nathan Chancellor
563dfbefdf drm/amd/display: Reduce number of arguments of dcn30's CalculateWatermarksAndDRAMSpeedChangeSupport()
CalculateWatermarksAndDRAMSpeedChangeSupport() has a large number of
parameters, which must be passed on the stack. Most of the parameters
between the two callsites are the same, so they can be accessed through
the existing mode_lib pointer, instead of being passed as explicit
arguments. Doing this reduces the stack size of
dml30_ModeSupportAndSystemConfigurationFull() from 1912 bytes to 1840
bytes building for x86_64 with clang-22, helping stay under the 2048
byte limit for display_mode_vba_30.c.

Additionally, now that there is a pointer to mode_lib->vba available,
use 'v' consistently throughout the entire function.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:24:06 -05:00
Nathan Chancellor
b20b3fc421 drm/amd/display: Reduce number of arguments of dcn30's CalculatePrefetchSchedule()
After an innocuous optimization change in clang-22,
dml30_ModeSupportAndSystemConfigurationFull() is over the 2048 byte
stack limit for display_mode_vba_30.c.

  drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:3529:6: warning: stack frame size (2096) exceeds limit (2048) in 'dml30_ModeSupportAndSystemConfigurationFull' [-Wframe-larger-than]
   3529 | void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
        |      ^

With clang-21, this function was already close to the limit:

  drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:3529:6: warning: stack frame size (1912) exceeds limit (1586) in 'dml30_ModeSupportAndSystemConfigurationFull' [-Wframe-larger-than]
   3529 | void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
        |      ^

CalculatePrefetchSchedule() has a large number of parameters, which must
be passed on the stack. Most of the parameters between the two callsites
are the same, so they can be accessed through the existing mode_lib
pointer, instead of being passed as explicit arguments. Doing this
reduces the stack size of dml30_ModeSupportAndSystemConfigurationFull()
from 2096 bytes to 1912 bytes with clang-22.

Closes: https://github.com/ClangBuiltLinux/linux/issues/2117
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:23:35 -05:00
Nathan Chancellor
25314b453c drm/amd/display: Apply e4479aecf6 to dml
After an innocuous optimization change in clang-22, allmodconfig (which
enables CONFIG_KASAN and CONFIG_WERROR) breaks with:

  drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1724:6: error: stack frame size (3144) exceeds limit (3072) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
   1724 | void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
        |      ^

With clang-21, this function was already pretty close to the existing
limit of 3072 bytes.

  drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1724:6: error: stack frame size (2904) exceeds limit (2048) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
   1724 | void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
        |      ^

A similar situation occurred in dml2, which was resolved by
commit e4479aecf6 ("drm/amd/display: Increase sanitizer frame larger
than limit when compile testing with clang") by increasing the limit for
clang when compile testing with certain sanitizer enabled, so that
allmodconfig (an easy testing target) continues to work.

Apply that same change to the dml folder to clear up the warning for
allmodconfig, unbreaking the build.

Closes: https://github.com/ClangBuiltLinux/linux/issues/2135
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:21:23 -05:00
Erick Karanja
2e01c96d8e drm/radeon : Use devm_i2c_add_adapter instead of i2c_add_adapter
Replace i2c_add_adapter() with devm_i2c_add_adapter() and remove all
associated cleanup, as devm_i2c_add_adapter() handles adapter teardown
automatically.

Signed-off-by: Erick Karanja <karanja99erick@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:21:16 -05:00
Alex Deucher
0030595c3e drm/amdgpu: Update AMDGPU_INFO_UQ_FW_AREAS query for sdma
Add a query for sdma queues.  Userspace can use this to
query the size of the CSA buffers for sdma user queues.

Proposed userspace:
https://gitlab.freedesktop.org/yogeshmohan/mesa/-/commits/userq_query

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:21:04 -05:00
Alex Deucher
44b69cf1d3 drm/amdgpu: Update AMDGPU_INFO_UQ_FW_AREAS query for compute
Add a query for compute queues.  Userspace can use this to
query the size of the EOP buffers for compute user queues.

Proposed userspace:
https://gitlab.freedesktop.org/yogeshmohan/mesa/-/commits/userq_query

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-01-05 16:20:39 -05:00
Abhishek Rajput
0a54edc191 drm/radeon: Convert legacy DRM logging in evergreen.c to drm_* helpers
Replace DRM_DEBUG(), DRM_ERROR(), and DRM_INFO() calls with the
corresponding drm_dbg(), drm_err(), and drm_info() helpers in the
radeon driver.

The drm_*() logging helpers take a struct drm_device * argument,
allowing the DRM core to prefix log messages with the correct device
name and instance. This is required to correctly distinguish log
messages on systems with multiple GPUs.

This change aligns radeon with the DRM TODO item:
"Convert logging to drm_* functions with drm_device parameter".

Signed-off-by: Abhishek Rajput <abhiraj21put@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:29:15 -05:00
Hawking Zhang
e50a6ecebe drm/amdgpu: Add gfx v12_1 interrupt source header
To acommandate specific interrupt source for gfx v12_1

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:29:13 -05:00
Mukul Joshi
1ded9071c1 drm/amdkfd: Override KFD SVM mappings for GFX 12.1
Override the local MTYPE mappings in KFD SVM code with mtype_local
modprobe param for GFX 12.1.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:29:10 -05:00
Likun Gao
005b7f7f93 drm/amdgpu: correct rlc autoload for xcc harvest
If the number instances of firmware is RLC_NUM_INS_CODE0(Only 1 inst),
need to copy it directly for rlcautolad.
For the firmware which instances number bigger than 1, only copy for
enabled XCC to save copy time.

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>
2025-12-16 13:29:07 -05:00
Likun Gao
4d70e12796 drm/amdgpu: add gfx sysfs support for gfx_v12_1
Add gfx sysfs support for gfx_v12_1.

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>
2025-12-16 13:29:05 -05:00
Jack Xiao
b9a0716a93 drm/amdgpu/mes_v12_1: fix mes access xcd register
Fix to use local register offset inside die for mes fw accessing
local/remote xcd register.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:29:01 -05:00
Likun Gao
c63a520186 drm/amdgpu: normalize reg addr as local xcc for gfx v12_1
Normalize registers address to local xcc address for gfx v12_1.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:58 -05:00
Likun Gao
c9908d9c98 drm/amdgpu: support xcc harvest for ih translate
Support xcc harvest for ih translate to logic xcc.
V2: Only check available instances

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>
2025-12-16 13:28:55 -05:00
Likun Gao
49f47cbf5f drm/amdgpu: Correct inst_id input from physical to logic
Correct inst_id input from physical to logic for sdma v7_1.
V2: Show real instance number on logic xcc.

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>
2025-12-16 13:28:52 -05:00
Likun Gao
1eb2a5ed19 drm/amdgpu: use physical xcc id to get rrmt
Use physical xcc_id to get rrmt on misc_op for mes v12_1.

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>
2025-12-16 13:28:50 -05:00
Mukesh Ogare
c5f9181072 drm/radeon: Convert logging in radeon_display.c to drm_* helpers
Replace DRM_ERROR() and DRM_INFO() calls in
drivers/gpu/drm/radeon/radeon_display.c with the corresponding
drm_err() and drm_info() helpers.

The drm_*() logging functions take a struct drm_device * argument,
allowing the DRM core to prefix log messages with the correct device
name and instance. This is required to correctly distinguish log
messages on systems with multiple GPUs.

This change aligns radeon with the DRM TODO item:
"Convert logging to drm_* functions with drm_device parameter".

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Mukesh Ogare <mukeshogare871@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:45 -05:00
Brian Kocoloski
6e7143e5e6 drm/amdkfd: Fix improper NULL termination of queue restore SMI event string
Pass character "0" rather than NULL terminator to properly format
queue restoration SMI events. Currently, the NULL terminator precedes
the newline character that is intended to delineate separate events
in the SMI event buffer, which can break userspace parsers.

Signed-off-by: Brian Kocoloski <brian.kocoloski@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:19 -05:00
Likun Gao
89745c19c6 drm/amdgpu: Correct xcc_id input to GET_INST from physical to logic
Correct xcc_id input to GET_INST from physical to logic for
gfx_v12_1.

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>
2025-12-16 13:28:16 -05:00
Michael Chen
a056771b30 drm/amdgpu: Fix CP_MEC_MDBASE in multi-xcc for gfx v12_1
Need to allocate memory for MEC FW data and program
registers CP_MEC_MDBASE for each XCC respectively.

Signed-off-by: Michael Chen <michael.chen@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Shaoyun.liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:12 -05:00
Philip Yang
8efa1a11e1 drm/amdgpu: Support 57bit fault address for GFX 12.1.0
The gmc fault virtual address is up to 57bit for 5 level page table,
this also works with 48bit virtual address for 4 level page table.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:09 -05:00
Philip Yang
fa0aa517de drm/amdgpu: Add pde3 table invalidation request for GFX 12.1.0
Set pde3 invalidation request bit during tlb flush for up to 5 level
page table.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:06 -05:00
Philip Yang
db1882b3ff drm/amdkfd: Update LDS, Scratch base for 57bit address
For 5-level page tables, update compute vmid sh_mem_base LDS aperture
and Scratch aperture base address to above 57-bit, use the same setting
from gfx vmid, we can remove the duplicate macro.

Update queue pdd lds_base and scratch_base to the same value as
sh_mem_base setting. Then application get process apertures return the
correct value to access LDS and Scratch memory for 57bit address 5-level
page tables. This may pass to MES in future when mapping queue.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:03 -05:00
Philip Yang
6f744d7976 drm/amdgpu: Enable 5-level page table for GFX 12.1.0
GFX 12.1.0 support 57bit virtual, 52bit physical address, set PDE
max_level to 4, min_vm_size to 128PB to enable GPU vm 5-level page
tables to support 57bit virtual address.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:28:00 -05:00
Feifei Xu
2d1fd54790 drm/amdgpu: init RS64_MEC_P2/P3_STACK for gfx12.1
Add GFX12.1 MEC P2/P3 STACK firmware init.

Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:58 -05:00
Mukul Joshi
e4643ea3d2 drm/amdgpu: Fix CU info calculations for GFX 12.1
This patch fixes the CU info calculations for gfx 12.1.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:51 -05:00
Mukul Joshi
91689b5a7c drm/amdkfd: Update CWSR area calculations for GFX 12.1
Update the SGPR, VGPR, HWREG size and number of waves supported
for GFX 12.1 CWSR memory limits. The CU calculation changed in
topology, as a result, the values need to be updated.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:45 -05:00
Hawking Zhang
db9ca58e16 drm/amdgpu: Add soc v1_0 ih client id table
To acommandate the specific ih client for soc v1_0

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:42 -05:00
Mukul Joshi
0c9ad47286 drm/amdgpu: Flush TLB on all XCCs on GFX 12.1
Currently, the driver code is flushing TLB on XCC 0 only.
Fix it by flushing on all XCCs within the partition.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:39 -05:00
mythilam
20ba98326f drm/amd/pm: restore SCLK settings after S0ix resume
User-configured SCLK(GPU core clock)frequencies were not persisting
across S0ix suspend/resume cycles on smu v14 hardware.
The issue occurred because of the code resetting clock frequency
to zero during resume.

This patch addresses the problem by:
- Preserving user-configured values in driver and sets the
  clock frequency across resume
- Preserved settings are sent to the hardware during resume

Signed-off-by: mythilam <mythilam@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:17 -05:00
Saleemkhan Jamadar
1bc44dee26 drm/amdgpu: do not use amdgpu_bo_gpu_offset_no_check individually
This should not be used indiviually, use amdgpu_bo_gpu_offset
with bo reserved.

v3 - unpin bo in queue destroy (Christian)
v2 - pin bo so that offset returned won't change after unlock (Christian)

Signed-off-by: Saleemkhan Jamadar <saleemkhan083@gmail.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:13 -05:00
Lijo Lazar
81af7f1718 drm/amdgpu: Change set ip clock/power gating param
It's not required to use generic void *, change to struct amdgpu_device *.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:10 -05:00
Lijo Lazar
9498d18739 drm/amdgpu: Use helper to get ip block
Replace individual searches with the utility function get_ip_block

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:07 -05:00
Lijo Lazar
b6b06640a8 drm/amdgpu: Move ip block related functions
Move ip block related functions to amdgpu_ip.c. No functional change
intended.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:27:02 -05:00
Alex Deucher
20880a3fd5 drm/amdgpu: fix a job->pasid access race in gpu recovery
Avoid a possible UAF in GPU recovery due to a race between
the sched timeout callback and the tdr work queue.

The gpu recovery function calls drm_sched_stop() and
later drm_sched_start().  drm_sched_start() restarts
the tdr queue which will eventually free the job.  If
the tdr queue frees the job before time out callback
completes, the job will be freed and we'll get a UAF
when accessing the pasid.  Cache it early to avoid the
UAF.

Example KASAN trace:
[  493.058141] BUG: KASAN: slab-use-after-free in amdgpu_device_gpu_recover+0x968/0x990 [amdgpu]
[  493.067530] Read of size 4 at addr ffff88b0ce3f794c by task kworker/u128:1/323
[  493.074892]
[  493.076485] CPU: 9 UID: 0 PID: 323 Comm: kworker/u128:1 Tainted: G            E       6.16.0-1289896.2.zuul.bf4f11df81c1410bbe901c4373305a31 #1 PREEMPT(voluntary)
[  493.076493] Tainted: [E]=UNSIGNED_MODULE
[  493.076495] Hardware name: TYAN B8021G88V2HR-2T/S8021GM2NR-2T, BIOS V1.03.B10 04/01/2019
[  493.076500] Workqueue: amdgpu-reset-dev drm_sched_job_timedout [gpu_sched]
[  493.076512] Call Trace:
[  493.076515]  <TASK>
[  493.076518]  dump_stack_lvl+0x64/0x80
[  493.076529]  print_report+0xce/0x630
[  493.076536]  ? _raw_spin_lock_irqsave+0x86/0xd0
[  493.076541]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  493.076545]  ? amdgpu_device_gpu_recover+0x968/0x990 [amdgpu]
[  493.077253]  kasan_report+0xb8/0xf0
[  493.077258]  ? amdgpu_device_gpu_recover+0x968/0x990 [amdgpu]
[  493.077965]  amdgpu_device_gpu_recover+0x968/0x990 [amdgpu]
[  493.078672]  ? __pfx_amdgpu_device_gpu_recover+0x10/0x10 [amdgpu]
[  493.079378]  ? amdgpu_coredump+0x1fd/0x4c0 [amdgpu]
[  493.080111]  amdgpu_job_timedout+0x642/0x1400 [amdgpu]
[  493.080903]  ? pick_task_fair+0x24e/0x330
[  493.080910]  ? __pfx_amdgpu_job_timedout+0x10/0x10 [amdgpu]
[  493.081702]  ? _raw_spin_lock+0x75/0xc0
[  493.081708]  ? __pfx__raw_spin_lock+0x10/0x10
[  493.081712]  drm_sched_job_timedout+0x1b0/0x4b0 [gpu_sched]
[  493.081721]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  493.081725]  process_one_work+0x679/0xff0
[  493.081732]  worker_thread+0x6ce/0xfd0
[  493.081736]  ? __pfx_worker_thread+0x10/0x10
[  493.081739]  kthread+0x376/0x730
[  493.081744]  ? __pfx_kthread+0x10/0x10
[  493.081748]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[  493.081751]  ? __pfx_kthread+0x10/0x10
[  493.081755]  ret_from_fork+0x247/0x330
[  493.081761]  ? __pfx_kthread+0x10/0x10
[  493.081764]  ret_from_fork_asm+0x1a/0x30
[  493.081771]  </TASK>

Fixes: a72002cb18 ("drm/amdgpu: Make use of drm_wedge_task_info")
Link: https://github.com/HansKristian-Work/vkd3d-proton/pull/2670
Cc: SRINIVASAN.SHANMUGAM@amd.com
Cc: vitaly.prosyak@amd.com
Cc: christian.koenig@amd.com
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:26:31 -05:00
Taimur Hassan
a1a445f3de drm/amd/display: Promote DC to 3.2.363
This version brings along the following updates:

- Replay Video Conferencing V2
- Fix scratch registers offsets for DCN35 and DCN351
- Fix DP no audio issue
- Add use_max_lsw parameter
- Fix presentation of Z8 efficiency
- Add USB-C DP Alt Mode lane limitation in DCN32
- Support DRR granularity
- Don't disable DPCD mst_en if sink connected
- Set enable_legacy_fast_update to false for DCN35/351
- Split update_planes_and_stream_v3 into parts (V2)

Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:26:27 -05:00
Taimur Hassan
d8e4e7086a drm/amd/display: [FW Promotion] Release 0.1.40.0
Summary for changes in firmware:
* Update DCHVM restore sequence for dcn35
* Add 2 new debug polling methods for dchvm "busy" during IPS entry for DCN35

Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:26:21 -05:00
Dominik Kaszewski
d38ec099aa drm/amd/display: Split update_planes_and_stream_v3 into parts (V2)
[Why]
Currently all of the preparation and execution of plane update is done
under a DC lock, blocking other code from accessing DC for longer than
strictly necessary.

[How]
Break the v3 update flow into 3 parts:
    * prepare - locked, calculate update flow and modify DC state
    * execute - unlocked, program hardware
    * cleanup - locked, finalize DC state and free temp resources
Legacy v2 flow too compilicated to break down for now, link new API
with old by executing everything in slightly misnamed prepare stage.

V2:
Keep the new code structure, but point all users back at the old code,
until fully tested.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:26:09 -05:00
Charlene Liu
cb7a978c7c drm/amd/display: DPP low mem pwr related adjustment -Part I
[why]
Default low pwr mem state get chagned.
SW needs to wake mem up first
also need to put back to LS again after use: will do in Part II.

Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:26:06 -05:00
Fudong Wang
8ae9d73b3a drm/amd/display: Set enable_legacy_fast_update to false for DCN35/351
[Why]
Existing logic will treat color temperature update = full update, cause
user color temp adjustment goes wait for update logic and fsleep in that
cause the adjustment not smooth.

[How]
Let DCN35/351 to follow DCN401 to set default value to false.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Fudong Wang <fudong.wang@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:25:51 -05:00
Peichen Huang
9aeb31b245 drm/amd/display: Don't disable DPCD mst_en if sink connected
[WHY]
User may connect mst dock with multi monitors and do quick unplug
and plug in one of the monitor. This operatioin may create CSN from
dock to display driver. Then display driver would disable and then enable
mst link and also disable/enable DPCD mst_en bit in dock RX. However,
when mst_en bit being disabled, if dock has another CSN message to
transmit then the message would be removed because of the disabling of
mst_en. In this case, the message is missing and it ends up no display in
the replugged monitor.

[HOW]
Don't disable mst_en bit when link still has sink connected.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Peichen Huang <PeiChen.Huang@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:25:45 -05:00
Weiguang Li
2f91293516 drm/amd/display: Support DRR granularity
[Why&How]
Support DRR granularity for coasting Vtotal calculation

Reviewed-by: Robin Chen <robin.chen@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Weiguang Li <wei-guang.li@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:25:41 -05:00