kernel/linux.git/drivers/gpu/drm/radeon/pptable.h, branch linux-7.0.y

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

2026-01-05T22:23:41+00:00

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

drm/radeon: Remove __counted_by from StateArray.states[]

2024-06-05T14:58:19+00:00

Work for __counted_by on generic pointers in structures (not just flexible array members) has started landing in Clang 19 (current tip of tree). During the development of this feature, a restriction was added to __counted_by to prevent the flexible array member's element type from including a flexible array member itself such as: struct foo { int count; char buf[]; }; struct bar { int count; struct foo data[] __counted_by(count); }; because the size of data cannot be calculated with the standard array size formula: sizeof(struct foo) * count This restriction was downgraded to a warning but due to CONFIG_WERROR, it can still break the build. The application of __counted_by on the states member of 'struct _StateArray' triggers this restriction, resulting in: drivers/gpu/drm/radeon/pptable.h:442:5: error: 'counted_by' should not be applied to an array with element of unknown size because 'ATOM_PPLIB_STATE_V2' (aka 'struct _ATOM_PPLIB_STATE_V2') is a struct type with a flexible array member. This will be an error in a future compiler version [-Werror,-Wbounds-safety-counted-by-elt-type-unknown-size] 442 | ATOM_PPLIB_STATE_V2 states[] __counted_by(ucNumEntries); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. Remove this use of __counted_by to fix the warning/error. However, rather than remove it altogether, leave it commented, as it may be possible to support this in future compiler releases. Cc: stable@vger.kernel.org Closes: https://github.com/ClangBuiltLinux/linux/issues/2028 Fixes: efade6fe50e7 ("drm/radeon: silence UBSAN warning (v3)") Signed-off-by: Bill Wendling Co-developed-by: Nathan Chancellor Signed-off-by: Nathan Chancellor Signed-off-by: Alex Deucher

drm/radeon: silence UBSAN warning (v3)

2024-04-17T02:39:16+00:00

Convert a variable sized array from [1] to []. v2: fix up a few more. v3: integrate comments from Kees. Reviewed-by: Kees Cook Tested-by: Jeff Johnson (v2) Acked-by: Christian König (v1) Signed-off-by: Alex Deucher Cc: keescook@chromium.org

drm/radeon: Fix UBSAN array-index-out-of-bounds for Radeon HD 5430

2023-10-09T20:47:08+00:00

For pptable structs that use flexible array sizes, use flexible arrays. Suggested-by: Felix Held Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2894 Signed-off-by: Mario Limonciello Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/radeon/dpm: add smc fan control for CI (v2)

2014-11-20T18:00:10+00:00

Enable smc fan control for CI boards. Should reduce the fan noise on systems with a higher default fan profile. v2: disable by default, add additional fan setup, rpm control bug: https://bugs.freedesktop.org/show_bug.cgi?id=73338 Signed-off-by: Alex Deucher

drm/radeon: fix pptable.h portability

2014-01-03T16:34:21+00:00

The following isn't compatible with gcc 2.x: pragma pack(push, 1) ... pragma pack(pop) replace with: pragma pack(1) ... pragma pack() bug: https://bugzilla.kernel.org/show_bug.cgi?id=67961 Signed-off-by: Alex Deucher

drm/radeon: switch to pptable.h

2013-08-30T20:30:11+00:00

Internally we switched to using a separate header for atombios pplib definitions. Switch over the open source driver. Signed-off-by: Alex Deucher