kernel/linux.git/drivers/gpu/drm/radeon, branch v6.18.21

drm/radeon: apply state adjust rules to some additional HAINAN vairants

2026-03-25T10:10:37+00:00

commit 86650ee2241ff84207eaa298ab318533f3c21a38 upstream. They need a similar workaround. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/1839 Signed-off-by: Alex Deucher (cherry picked from commit 87327658c848f56eac166cb382b57b83bf06c5ac) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/radeon: Add HAINAN clock adjustment

2026-03-04T12:20:41+00:00

[ Upstream commit 908d318f23d6b5d625bea093c5fc056238cdb7ff ] This patch limits the clock speeds of the AMD Radeon R5 M420 GPU from 850/1000MHz (core/memory) to 800/950 MHz, making it work stably. This patch is for radeon. Signed-off-by: decce6 Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/radeon: Remove __counted_by from ClockInfoArray.clockInfo[]

2026-01-17T15:35:14+00:00

commit 19158c7332468bc28572bdca428e89c7954ee1b1 upstream. clockInfo[] is a generic uchar pointer to variable sized structures which vary from ASIC to ASIC. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4374 Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher (cherry picked from commit dc135aa73561b5acc74eadf776e48530996529a3) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/radeon: delete radeon_fence_process in is_signaled, no deadlock

2025-11-18T17:09:47+00:00

Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fence_ops::signaled can be called with the fence lock in unknown state. For radeon, the fence lock is also the wait queue lock. This can cause a self deadlock when signaled() tries to make forward progress on the wait queue. But advancing the queue is unneeded because incorrectly returning false from signaled() is perfectly acceptable. Link: https://github.com/brave/brave-browser/issues/49182 Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4641 Cc: Alex Deucher Signed-off-by: Robert McClinton Signed-off-by: Alex Deucher (cherry picked from commit 527ba26e50ec2ca2be9c7c82f3ad42998a75d0db) Cc: stable@vger.kernel.org

drm/radeon: Remove calls to drm_put_dev()

2025-10-28T15:00:08+00:00

Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() drm_put_dev()'ing to trigger it to be free'd should be done by devres. However, drm_put_dev() is still in the probe error and device remove paths. When the driver fails to probe warnings like the following are shown because devres is trying to drm_put_dev() after the driver already did it. [ 5.642230] radeon 0000:01:05.0: probe with driver radeon failed with error -22 [ 5.649605] ------------[ cut here ]------------ [ 5.649607] refcount_t: underflow; use-after-free. [ 5.649620] WARNING: CPU: 0 PID: 357 at lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110 Fixes: a9ed2f052c5c ("drm/radeon: change drm_dev_alloc to devm_drm_dev_alloc") Signed-off-by: Daniel Palmer Signed-off-by: Alex Deucher (cherry picked from commit 3eb8c0b4c091da0a623ade0d3ee7aa4a93df1ea4)

drm/radeon: Do not kfree() devres managed rdev

2025-10-28T14:59:56+00:00

Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() rdev is managed by devres and we shouldn't be calling kfree() on it. This fixes things exploding if the driver probe fails and devres cleans up the rdev after we already free'd it. Fixes: a9ed2f052c5c ("drm/radeon: change drm_dev_alloc to devm_drm_dev_alloc") Signed-off-by: Daniel Palmer Signed-off-by: Alex Deucher (cherry picked from commit 16c0681617b8a045773d4d87b6140002fa75b03b)

drm/radeon: use dev_warn_once() in CS parsers

2025-09-05T21:38:42+00:00

Older GPUs did not support memory protection, so the kernel driver would validate the command submissions (CS) from userspace to avoid the GPU accessing any memory it shouldn't. Change any error messages in that validation to dev_warn_once() to avoid spamming the kernel log in the event of a bad CS. If users see any of these messages they should report them to the user space component, which in most cases is mesa (https://gitlab.freedesktop.org/mesa/mesa/-/issues). Cc: Borislav Petkov (AMD) Acked-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20250829171655.GBaLHgh3VOvuM1UfJg@fat_crate.local Signed-off-by: Alex Deucher

drm/radeon/pm: Remove redundant ternary operators

2025-09-05T21:38:40+00:00

For ternary operators in the form of "a ? true : false", if 'a' itself returns a boolean result, the ternary operator can be omitted. Remove redundant ternary operators to clean up the code. Signed-off-by: Liao Yuanhong Signed-off-by: Alex Deucher

drm/radeon/radeon_legacy_encoders: Remove redundant ternary operators

2025-09-05T21:38:40+00:00

drm/radeon/dpm: Remove redundant ternary operators

2025-09-05T21:38:40+00:00