kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c, branch v4.19.237

drm/amdgpu: fix parameter error of RREG32_PCIE() in amdgpu_regs_pcie

2021-03-11T13:04:59+00:00

commit 1aa46901ee51c1c5779b3b239ea0374a50c6d9ff upstream. the register offset isn't needed division by 4 to pass RREG32_PCIE() Signed-off-by: Kevin Wang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amd/amdgpu: Fix GPR read from debugfs (v2)

2020-03-25T07:06:12+00:00

commit 5bbc6604a62814511c32f2e39bc9ffb2c1b92cbe upstream. The offset into the array was specified in bytes but should be in terms of 32-bit words. Also prevent large reads that would also cause a buffer overread. v2: Read from correct offset from internal storage buffer. Signed-off-by: Tom St Denis Acked-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: fix a potential information leaking bug

2019-08-25T08:47:55+00:00

[ Upstream commit 929e571c04c285861e0bb049a396a2bdaea63282 ] Coccinelle reports a path that the array "data" is never initialized. The path skips the checks in the conditional branches when either of callback functions, read_wave_vgprs and read_wave_sgprs, is not registered. Later, the uninitialized "data" array is read in the while-loop below and passed to put_user(). Fix the path by allocating the array with kcalloc(). The patch is simplier than adding a fall-back branch that explicitly calls memset(data, 0, ...). Also it does not need the multiplication 1024*sizeof(*data) as the size parameter for memset() though there is no risk of integer overflow. Signed-off-by: Wang Xiayang Reviewed-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/amdgpu: Add some documentation to the debugfs entries

2018-05-15T18:44:19+00:00

Signed-off-by: Tom St Denis Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

drm/amdgpu: Use dpm_enabled as dpm state flag

2018-04-11T18:07:49+00:00

driver will set dpm_enabled to true only when module parameter amdgpu_dpm not equal to 0 and smu hw initialize successfully. Reviewed-by: Evan Quan Reviewed-by: Huang Rui Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher

drm/amdgpu: Add support for SRBM selection v3

2018-04-03T18:08:44+00:00

Also remove code duplication in write and read regs functions. This also fixes potential missing unlock in amdgpu_debugfs_regs_write in case get_user would fail. v2: Add SRBM mutex locking. v3: Fix TO counter and fix comment location. Signed-off-by: Andrey Grodzovsky Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add amdgpu_evict_gtt debugfs entry

2018-03-07T21:10:12+00:00

Allow evicting all BOs from the GTT domain. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: move debugfs functions to their own file

2017-12-18T15:59:01+00:00

amdgpu_device.c was getting pretty cluttered. Acked-by: Christian König Signed-off-by: Alex Deucher