linux.git/drivers/gpu/drm/amd/include/amd_shared.h, branch v7.3-rc2

drm/amdgpu: drop kernel-doc for deleted struct fields

2026-07-15T13:15:42+00:00

3 fields in struct amd_ip_funcs have been deleted, so also delete the
kernel-doc comments for them to avoid warnings:

WARNING: ../drivers/gpu/drm/amd/include/amd_shared.h:481 Excess struct member 'check_soft_reset' description in 'amd_ip_funcs'
WARNING: ../drivers/gpu/drm/amd/include/amd_shared.h:481 Excess struct member 'pre_soft_reset' description in 'amd_ip_funcs'
WARNING: ../drivers/gpu/drm/amd/include/amd_shared.h:481 Excess struct member 'post_soft_reset' description in 'amd_ip_funcs'

Fixes: 947e46eb2fb9 ("drm/amdgpu: Delete check_soft_reset() from amd_ip_funcs")
Fixes: b7500532e12b ("drm/amdgpu: Delete pre/post_soft_reset() from amd_ip_funcs")
Signed-off-by: Randy Dunlap 
Signed-off-by: Alex Deucher

drm/amdgpu: Delete pre/post_soft_reset() from amd_ip_funcs

2026-07-01T15:14:03+00:00

These functions were largely redundant with the respective
suspend() and resume() functions, the main difference being
that they were less used and therefore less likely to be
tested and correct.

Move anything relevant from pre/post_soft_reset()
that is not already done by suspend()/resume()
into the soft_reset() functions.

Note that future uses of soft_reset() will need to call
the suspend() / resume() functions and the necessary clock
and power gating functions.

Reviewed-by: Alex Deucher 
Signed-off-by: Timur Kristóf 
Acked-by: Christian König 
Signed-off-by: Alex Deucher

drm/amdgpu: Delete check_soft_reset() from amd_ip_funcs

2026-07-01T15:11:52+00:00

This function is not called from anywhere anymore and
every implementation was bogus.

Some implementations checked busy flags of the IP blocks,
which are not really indicative of whether the block is
hung and needs to be reset. For example the blocks
could be busy just normally executing submissions,
and not need to be reset.

Other implementations checked IB tests, which is actually
more useful, but could still just indicate that an IP block
is executing submissions normally.

It is also unnecessary because the GPU recovery code path
already knows which ring is hung so we know exactly what
we need to reset.

Just delete check_soft_reset() entirely.

Reviewed-by: Alex Deucher 
Signed-off-by: Timur Kristóf 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/amd/display: Disable FRL and add module param to enable it

2026-06-03T17:45:01+00:00

FRL links don't yet support VRR. If we enable it by default
users will see a functional regression when connected to an FRL
capable display as the driver will now default to FRL and not
allow VRR.

VRR support will come soon, so instead of making an elaborate
TMDS fallback mechanism simply default FRL to disabled, but
provide a dcfeaturemask of 0x400 to enable it if anyone wants
to already try it out.

Reviewed-by: Harry Wentland 
Signed-off-by: Fangzhi Zuo 
Signed-off-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amdgpu: Describe @AMD_IP_BLOCK_TYPE_RAS in amd_ip_block_type enum

2026-01-05T21:25:29+00:00

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: 7169e706c82d ("drm/amdgpu: Add ras module ip block to amdgpu discovery")
Signed-off-by: Bagas Sanjaya 
Signed-off-by: Alex Deucher

drm/amdgpu: Add ras module ip block to amdgpu discovery

2025-10-20T22:25:54+00:00

Add ras module ip block to amdgpu discovery.

Signed-off-by: YiPeng Chai 
Reviewed-by: Tao Zhou 
Reviewed-by: Hawking Zhang 
Signed-off-by: Alex Deucher

drm/amd: Duplicate DC_FEATURE_MASK and DC_DEBUG_MASK enum values into kdoc

2025-09-15T20:56:04+00:00

[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 
Signed-off-by: Mario Limonciello 
Signed-off-by: Alex Deucher

drm/amd: Add missing kdoc for amd_ip_funcs `complete` callback

2025-06-24T14:00:07+00:00

The `complete` callback should be described in kernel doc.

Reported-by: Stephen Rothwell 
Closes: https://lore.kernel.org/linux-next/20250619205931.41cf9332@canb.auug.org.au/
Reviewed-by: Alex Deucher 
Link: https://lore.kernel.org/r/20250620041420.3585005-1-superm1@kernel.org
Signed-off-by: Mario Limonciello 
Signed-off-by: Alex Deucher

drm/amd: Add support for a complete pmops action

2025-06-18T16:19:18+00:00

complete() callbacks are supposed to handle reversing anything
that occurred during prepare() callbacks.  They'll be called on every
power state transition, and will also be called if the sequence is
failed (such as an aborted suspend).

Add support for IP blocks to support this action.

Reviewed-by: Alex Hung 
Link: https://lore.kernel.org/r/20250602014432.3538345-2-superm1@kernel.org
Signed-off-by: Mario Limonciello 
Signed-off-by: Alex Deucher

drm/amd/display: Reuse Subvp debug option for FAMS

2025-05-29T14:54:56+00:00

FAMS is the successor to SubVP starting with DCN4x. Reuse the same
debug option to disable FAMS for debugging purposes.

Signed-off-by: Aurabindo Pillai 
Reviewed-by: Harry Wentland 
Signed-off-by: Alex Deucher