Commit Graph

1382639 Commits

Author SHA1 Message Date
Mario Limonciello
5e76bc677c drm/amd/display: Set up pixel encoding for YCBCR422
[Why]
fill_stream_properties_from_drm_display_mode() will not configure pixel
encoding to YCBCR422 when the DRM color format supports YCBCR422 but not
YCBCR420 or YCBCR4444.  Instead it will fallback to RGB.

[How]
Add support for YCBCR422 in pixel encoding mapping.

Suggested-by: Mauri Carvalho <mcarvalho3@lenovo.com>
Reviewed-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Mario Limonciello <Mario.Limonciello@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 17:00:55 -04:00
Ausef Yousof
02a6c2e4b2 drm/amd/display: fix dml ms order of operations
[why&how]
small error in order of operations in immediateflipbytes
calculation on dml ms side that can result in dml ms
and mp mismatch immediateflip support for a given pipe
and thus an invalid hw state, correct the order to align
with mp.

Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Ausef Yousof <Ausef.Yousof@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 17:00:51 -04:00
Charlene Liu
29591e6fd4 drm/amd/display: limit one non-related log to dGPU
[Why&How]
some log are for dGPU only.
Added check to limit log.

Reviewed-by: Chris Park <chris.park@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 17:00:44 -04:00
Ivan Lipski
95d168b367 drm/amd/display: Allow RX6xxx & RX7700 to invoke amdgpu_irq_get/put
[Why&How]
As reported on https://gitlab.freedesktop.org/drm/amd/-/issues/3936,
SMU hang can occur if the interrupts are not enabled appropriately,
causing a vblank timeout.

This patch reverts commit 5009628d85 ("drm/amd/display: Remove unnecessary
amdgpu_irq_get/put"), but only for RX6xxx & RX7700 GPUs, on which the
issue was observed.

This will re-enable interrupts regardless of whether the user space needed
it or not.

Fixes: 5009628d85 ("drm/amd/display: Remove unnecessary amdgpu_irq_get/put")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3936
Suggested-by: Sun peng Li <sunpeng.li@amd.com>
Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:57:33 -04:00
Wesley Chalmers
782f0bb5a1 drm/amd/display: Rename header file link.h to link_service.h
[WHY]
Header file name "link.h" collides with system header when dc is
compiled as a user-mode library

[WHAT]
Rename link.h to link_service.h to avoid name collision

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:57:29 -04:00
Nicholas Kazlauskas
18e755155c drm/amd/display: Fix DMCUB loading sequence for DCN3.2
[Why]
New sequence from HW for reset and firmware reloading has been
provided that aims to stabilize the reload sequence in the case the
firmware is hung or has outstanding requests.

[How]
Update the sequence to remove the DMUIF reset and the redundant
writes in the release.

Reviewed-by: Sreeja Golui <sreeja.golui@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:57:21 -04:00
Dmytro Laktyushkin
44343e8b25 drm/amd/display: prepare dml 2.1 for new asic
[Why&How]
prepare dml 2.1 for new asic

Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:57:15 -04:00
Zhikai Zhai
0bfcb56e8b drm/amd/display: Modify the link training policy
[Why&How]
Currently fallback to low link rate if the link training
fails once on USB4. It may cause the bandwidth couldn't
satisfy the requirement of streams. Modify the policy
to do training retry in the previous few times, only
do fallback at the last time.

Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Zhikai Zhai <zhikai.zhai@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:57:04 -04:00
Hawking Zhang
46fbe1e349 Revert "drm/amdgpu: Allocate psp fw private buffer in vram"
This reverts commit 22dcb283d6.
Need to certain APU platforms and will proceed to rework
the patch accordingly

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:56:15 -04:00
Srinivasan Shanmugam
0a71ceb27f drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.0.1/11.0.4 GPUs
Enable the cleaner shader for additional GFX11.0.1/11.0.4 series GPUs to
ensure data isolation among GPU tasks. The cleaner shader is tasked with
clearing the Local Data Store (LDS), Vector General Purpose Registers
(VGPRs), and Scalar General Purpose Registers (SGPRs), which helps avoid
data leakage and guarantees the accuracy of computational results.

This update extends cleaner shader support to GFX11.0.1/11.0.4 GPUs,
previously available for GFX11.0.3. It enhances security by clearing GPU
memory between processes and maintains a consistent GPU state across KGD
and KFD workloads.

Cc: Wasee Alam <wasee.alam@amd.com>
Cc: Mario Sopena-Novales <mario.novales@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:56:07 -04:00
Mario Limonciello
e0dd9b8e9e drm/amd: Duplicate DC_FEATURE_MASK and DC_DEBUG_MASK enum values into kdoc
[Why]
When kernel documentation is generated the enum values themselves don't
end up in the documentation.  This makes browsing them in HTML a lot
less useful.

[How]
Copy DC_DEBUG_MASK and DC_FEATURE_MASK enum values into matching kdoc
comments.

Reviewed-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>
2025-09-15 16:56:04 -04:00
Yang Wang
efbacd8aea drm/amd/pm: unified smu feature cap interface
add a unified interface to provide smu feature cap set.

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:58 -04:00
Asad Kamal
10a9c09a7c drm/amd/pm: Allow to set power cap in vf mode
Allow setting power cap for smu_v13_0_6 in 1vf mode

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:52 -04:00
Lijo Lazar
780f7a45e5 drm/amdgpu: Add virtual device capabilities
Add a member to define the capabilities of virtual device.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:48 -04:00
Lijo Lazar
1f9ba8ea04 drm/amdgpu: Add generic capability class
Define a utility macro for defining capabilities and their attributes.
Capability attributes are read-only, write-only, read-write.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:41 -04:00
Lijo Lazar
c3cdc3bebd drm/amdgpu: Read memory vendor information
Read VRAM vendor information from scratch register for GC v9.4.3 and
GC v9.5.0 SOCs.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:36 -04:00
Stanley.Yang
e09b081d8a drm/amdgpu: wait pmfw polling mca bank info done
wait 500ms to ensure pmfw polling mca bank info done.

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:27 -04:00
Tvrtko Ursulin
e2ee0f1b1a drm/amdgpu: Use memset32 for ring clearing
Use memset32 instead of open coding it, just because it is
a tiny bit nicer.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:55:22 -04:00
Timur Kristóf
ae5c2bee16 drm/amdgpu: Fix allocating extra dwords for rings (v2)
Rename extra_dw to extra_bytes and document what it's for.

The value is already used as if it were bytes in vcn_v4_0.c
and in amdgpu_ring_init. Just adjust the dword count in
jpeg_v1_0.c so that it becomes a byte count.

v2:
Rename extra_dw to extra_bytes as discussed during review.

Fixes: c8c1a1d2ef ("drm/amdgpu: define and add extra dword for jpeg ring")
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:52 -04:00
Timur Kristóf
156db7d353 drm/amd/pm: Remove unneeded legacy DPM related code.
This code isn't needed anymore as we collect the same information
into pm_display_cfg instead.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:50 -04:00
Timur Kristóf
9d73b107a6 drm/amd/pm: Use pm_display_cfg in legacy DPM (v2)
This commit is necessary for DC to function well with chips
that use the legacy power management code, ie. SI and KV.
Communicate display information from DC to the legacy PM code.

Currently DC uses pm_display_cfg to communicate power management
requirements from the display code to the DPM code.
However, the legacy (non-DC) code path used different fields
and therefore could not take into account anything from DC.

Change the legacy display code to fill the same pm_display_cfg
struct as DC and use the same in the legacy DPM code.

To ease review and reduce churn, this commit does not yet
delete the now unneeded code, that is done in the next commit.

v2:
Rebase.
Fix single_display in amdgpu_dpm_pick_power_state.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:46 -04:00
Timur Kristóf
b515dcb0dc drm/amd/display: Add pixel_clock to amd_pp_display_configuration
This commit adds the pixel_clock field to the display config
struct so that power management (DPM) can use it.

We currently don't have a proper bandwidth calculation on old
GPUs with DCE 6-10 because dce_calcs only supports DCE 11+.
So the power management (DPM) on these GPUs may need to make
ad-hoc decisions for display based on the pixel clock.

Also rename sym_clock to pixel_clock in dm_pp_single_disp_config
to avoid confusion with other code where the sym_clock refers to
the DisplayPort symbol clock.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:41 -04:00
Mario Limonciello
92d6295a29 Documentation/amdgpu: Add Ryzen AI 330 series processor
This has been announced so add to the table.

Link: https://www.amd.com/en/products/processors/laptop/ryzen/ai-300-series/amd-ryzen-ai-5-330.html
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>
2025-09-15 16:52:35 -04:00
Lijo Lazar
c1456fadce drm/amdgpu: Release hive reference properly
xgmi hive reference is taken on function entry, but not released
correctly for all paths. Use __free() to release reference properly.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Ce Sun <cesun102@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:31 -04:00
Srinivasan Shanmugam
2a7a794eb8 drm/amdgpu/ttm: Allocate/Free 4K MMIO_REMAP Singleton
Add mmio_remap bookkeeping to amdgpu_device and introduce
amdgpu_ttm_mmio_remap_bo_init()/fini() to manage a kernel-owned,
one-page (4K) BO in AMDGPU_GEM_DOMAIN_MMIO_REMAP.

Bookkeeping:
  - adev->rmmio_remap.bo : kernel-owned singleton BO

The BO is allocated during TTM init when a remap bus address is available
(adev->rmmio_remap.bus_addr) and PAGE_SIZE <= AMDGPU_GPU_PAGE_SIZE (4K),
and freed during TTM fini.

v2:
 - Check mmio_remap bus address (adev->rmmio_remap.bus_addr) instead of
   rmmio_base. (Alex)
 - Skip quietly if PAGE_SIZE > AMDGPU_GPU_PAGE_SIZE or no bus address
   (no warn). (Alex)
 - Use `amdgpu_bo_create()` (not *_kernel) - Only with this The object
   is stored in adev->mmio_remap.bo and will later be exposed to
   userspace via a GEM handle. (Christian)

v3:
 - Remove obvious comment before amdgpu_ttm_mmio_remap_bo_fini() call.
   (Alex)

v4:
 - Squash bookkeeping into this patch (Christian)

Suggested-by: Christian König <christian.koenig@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:24 -04:00
Prike Liang
9e46b8bb05 drm/amdgpu: validate userq buffer virtual address and size
It needs to validate the userq object virtual address to
determine whether it is residented in a valid vm mapping.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:15 -04:00
Yang Wang
4ba48fc3da drm/amd/pm: make smu_set_temp_funcs() smu specific for smu v13.0.6
move smu_set_temp_funcs() into smu_v13.0.6 ppt.c file to keep same code
layer in amdgpu_smu.c. (only set_ppt func in amdgpu_smu.c)

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:52:11 -04:00
Srinivasan Shanmugam
a3ac30ffea drm/amdgpu/ttm: Initialize AMDGPU_PL_MMIO_REMAP Heap
Add a one-page TTM range manager for AMDGPU_PL_MMIO_REMAP via
amdgpu_ttm_init_on_chip(). This only registers the placement with TTM;
no BO is allocated in this patch.

The singleton 4K remap BO is created and freed in the following patch.

This split follows to separate heap bring-up from BO allocation.

Cc: Christian König <christian.koenig@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@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>
2025-09-15 16:52:07 -04:00
Srinivasan Shanmugam
fb5a52dbe9 drm/amdgpu: Implement TTM handling for MMIO_REMAP placement
Implement TTM-level behavior for AMDGPU_PL_MMIO_REMAP so it behaves as a
CPU-visible IO page:

* amdgpu_evict_flags(): mark as unmovable
* amdgpu_res_cpu_visible(): consider CPU-visible
* amdgpu_bo_move(): use null move when src/dst is MMIO_REMAP
* amdgpu_ttm_io_mem_reserve(): program base/is_iomem/caching using
  the device's mmio_remap_* metadata
* amdgpu_ttm_io_mem_pfn(): return PFN for the remapped HDP page
* amdgpu_ttm_tt_pde_flags(): set AMDGPU_PTE_SYSTEM for this mem type

v2:
- Drop HDP-specific comment; keep generic remap (Alex).

v3:
- Fix indentation in amdgpu_res_cpu_visible (Christian).
- Use adev->rmmio_remap.bus_addr for MMIO_REMAP bus/PFN calculations
  (Alex).

v4:
- Drop unnecessary (resource_size_t) casts in MMIO_REMAP io-mem paths
  (Alex)

Cc: Christian König <christian.koenig@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@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>
2025-09-15 16:51:59 -04:00
Thorsten Blum
99eeb8358e drm/amdgpu: Replace kzalloc + copy_from_user with memdup_user
Replace kzalloc() followed by copy_from_user() with memdup_user() to
improve and simplify ta_if_load_debugfs_write() and
ta_if_invoke_debugfs_write().

No functional changes intended.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:53 -04:00
Thorsten Blum
6156c101e5 drm/amdkfd: Replace kzalloc + copy_from_user with memdup_user
Replace kzalloc() followed by copy_from_user() with memdup_user() to
improve and simplify kfd_ioctl_set_cu_mask().

Return early if an error occurs and remove the obsolete 'out' label.

No functional changes intended.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:48 -04:00
Tvrtko Ursulin
d4b6274cbf drm/amdgpu: Use (v)memdup_array_user in amdgpu_cs_pass1
Replace k(v)malloc_array() + copy_from_user() with (v)memdup_array_user().

This shrinks the source code and improves separation between the kernel
and userspace slabs.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:45 -04:00
Tvrtko Ursulin
dea75df7af drm/amdgpu: Use memdup_array_user in amdgpu_cs_wait_fences_ioctl
Replace kmalloc_array() + copy_from_user() with memdup_array_user().

This shrinks the source code and improves separation between the kernel
and userspace slabs.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:40 -04:00
Tvrtko Ursulin
c4ac100e9a drm/amdgpu: Use vmemdup_array_user in amdgpu_bo_create_list_entry_array
Replace kvmalloc_array() + copy_from_user() with vmemdup_array_user() on
the fast path.

This shrinks the source code and improves separation between the kernel
and userspace slabs.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:34 -04:00
Rodrigo Siqueira
6530748485 drm/amdgpu: Remove volatile references from VCN
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:25 -04:00
Rodrigo Siqueira
8970253007 drm/amdgpu: Remove volatile from amdgpu and amdgpu_ih headers
Remove the unnecessary use of volatile in some of the amdgpu.h and
amdgpu_ih.h headers.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:18 -04:00
Rodrigo Siqueira
f307cfb917 drm/amdgpu: Remove volatile from ring manipulation
None of the pointer operations handled by the ring file requires
volatile, for this reason, this commit removes all occurrences of
volatile associated with rings.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:15 -04:00
Rodrigo Siqueira
b8fc541089 drm/amdgpu: Remove volatile from RLC files
The RLC uses volatile with some pointers that are not directly related
to any of the situations where volatile is advised to be used [1]. For
this reason, this commit removes all the volatile occurrences associated
with RLC.

1. https://docs.kernel.org/process/volatile-considered-harmful.html

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:09 -04:00
Rodrigo Siqueira
d8586afe38 drm/amdgpu: Remove volatile from CSB functions
The CSB buffer manipulation occurs in memory where the BO is mapped
during initialization, and some references to this buffer are handled
with volatile, which is incorrect in this scenario. There are a few
cases where the use of volatile is accepted, but none of them align with
CSB operations. Therefore, this commit removes all the volatile
variables associated with the CSB code.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:51:04 -04:00
Rodrigo Siqueira
0855c764f7 drm/amdgpu/vcn: Change amdgpu_vcn_sw_fini return to void
The function amdgpu_vcn_sw_fini() returns an integer, but this number is
always 0. This commit changes the amdgpu_vcn_sw_fini() return to void,
and eliminates all checks to this return across different VCNs.

Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:46 -04:00
Rodrigo Siqueira
3d9752f4f9 drm/amdgpu/vcn: Document IRQ per-instance irq behavior for VCN 4.0.3
When examining the VCN function init, it is common to find a loop that
initializes VCN rings, which uses one IRQ per instance. However, VCN
4.0.3 deviates from this pattern, as it includes a distinct field to
differentiate instances, which results in a slightly different ring
init. This commit makes this difference explicit by using a fixed index
when initializing the ring buffer and also adds a comment.

Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:41 -04:00
Prike Liang
8b38bf3883 drm/amdgpu: validate userq hw unmap status for destroying userq
Before destroying the userq buffer object, it requires validating
the userq HW unmap status and ensuring the userq is unmapped from
hardware. If the user HW unmap failed, then it needs to reset the
queue for reusing.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:37 -04:00
Srinivasan Shanmugam
11aaec3566 drm/amdgpu: Wire up MMIO_REMAP placement and User-visible strings
Wire up the conversions and strings for the new MMIO_REMAP placement:

* amdgpu_mem_type_to_domain() maps AMDGPU_PL_MMIO_REMAP -> domain
* amdgpu_bo_placement_from_domain() accepts the new domain
* amdgpu_bo_mem_stats_placement() and amdgpu_bo_print_info() report it
* res cursor supports the new placement
* fdinfo prints "mmioremap" for the new placement

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:34 -04:00
Srinivasan Shanmugam
357fe94b66 drm/amdgpu/ttm: Add New AMDGPU_PL_MMIO_REMAP Placement
Introduce a kernel-internal TTM placement type AMDGPU_PL_MMIO_REMAP
for the HDP flush MMIO remap page

Plumbing added:
- amdgpu_res_cursor.{first,next}: treat MMIO_REMAP like DOORBELL
- amdgpu_ttm_io_mem_reserve(): return BAR bus address + offset
  for MMIO_REMAP, mark as uncached I/O
- amdgpu_ttm_io_mem_pfn(): PFN from register BAR
- amdgpu_res_cpu_visible(): visible to CPU
- amdgpu_evict_flags()/amdgpu_bo_move(): non-migratable
- amdgpu_ttm_tt_pde_flags(): map as SYSTEM
- amdgpu_bo_mem_stats_placement(): report AMDGPU_PL_MMIO_REMAP
- amdgpu_fdinfo: print “mmioremap” bucket label

Cc: Alex Deucher <alexander.deucher@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@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>
2025-09-09 16:18:30 -04:00
David Rosca
8908fdce06 drm/amdgpu/vcn: Allow limiting ctx to instance 0 for AV1 at any time
There is no reason to require this to happen on first submitted IB only.
We need to wait for the queue to be idle, but it can be done at any
time (including when there are multiple video sessions active).

Signed-off-by: David Rosca <david.rosca@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:28 -04:00
David Rosca
dc8f9f0f45 drm/amdgpu/vcn4: Fix IB parsing with multiple engine info packages
There can be multiple engine info packages in one IB and the first one
may be common engine, not decode/encode.
We need to parse the entire IB instead of stopping after finding first
engine info.

Signed-off-by: David Rosca <david.rosca@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:22 -04:00
Prike Liang
d426a5b6da drm/amdgpu: clean up the amdgpu_userq_active()
This is no invocation for amdgpu_userq_active().

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:18 -04:00
Sathishkumar S
28f75f9bcc drm/amdgpu/jpeg: Move parse_cs to amdgpu_jpeg.c
Rename jpeg_v2_dec_ring_parse_cs to amdgpu_jpeg_dec_parse_cs
and move it to amdgpu_jpeg.c as it is shared among jpeg versions.

Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:08 -04:00
Ray Wu
1697398555 drm/amd/display: Remove duplicated code
[Why&How]
Remove duplicated code

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:18:01 -04:00
Prike Liang
219be4711a drm/amdgpu: validate userq input args
This will help on validating the userq input args, and
rejecting for the invalid userq request at the IOCTLs
first place.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-09 16:17:57 -04:00