kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c, branch v5.8.18

drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config

2020-10-07T06:02:46+00:00

commit a39d0d7bdf8c21ac7645c02e9676b5cb2b804c31 upstream. A recent attempt to fix a ref count leak in amdgpu_display_crtc_set_config() turned out to be doing too much and "fixed" an intended decrease as if it were a leak. Undo that part to restore the proper balance. This is the very nature of this function to increase or decrease the power reference count depending on the situation. Consequences of this bug is that the power reference would eventually get down to 0 while the display was still in use, resulting in that display switching off unexpectedly. Signed-off-by: Jean Delvare Fixes: e008fa6fb415 ("drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config") Cc: stable@vger.kernel.org Cc: Navid Emamdoost Cc: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config

2020-09-03T09:29:17+00:00

[ Upstream commit e008fa6fb41544b63973a529b704ef342f47cc65 ] in amdgpu_display_crtc_set_config, the call to pm_runtime_get_sync increments the counter even in case of failure, leading to incorrect ref count. In case of failure, decrement the ref count before returning. Signed-off-by: Navid Emamdoost Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amdgpu: add apu flags (v2)

2020-05-22T17:41:53+00:00

Add some APU flags to simplify handling of different APU variants. It's easier to understand the special cases if we use names flags rather than checking device ids and silicon revisions. v2: rebase on latest code Acked-by: Evan Quan Acked-by: Christian König Signed-off-by: Alex Deucher

Merge v5.6-rc2 into drm-misc-next

2020-02-17T09:34:34+00:00

Lyude needs some patches in 5.6-rc2 and we didn't bring drm-misc-next forward yet, so it looks like a good occasion. Signed-off-by: Maxime Ripard

drm/amdgpu: Convert to CRTC VBLANK callbacks

2020-02-13T12:08:13+00:00

VBLANK callbacks in struct drm_driver are deprecated in favor of their equivalents in struct drm_crtc_funcs. Convert amdgpu over. v2: * don't wrap existing functions; change signature instead Signed-off-by: Thomas Zimmermann Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20200123135943.24140-6-tzimmermann@suse.de

drm/amdgpu: Convert to struct drm_crtc_helper_funcs.get_scanout_position()

2020-02-13T12:08:13+00:00

The callback struct drm_driver.get_scanout_position() is deprecated in favor of struct drm_crtc_helper_funcs.get_scanout_position(). Convert amdgpu over. Signed-off-by: Thomas Zimmermann Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20200123135943.24140-5-tzimmermann@suse.de

drm/amdgpu: enable S/G display on PCO and RV2 (v2)

2020-01-14T15:18:09+00:00

It should work on all Raven variants, but some users have reported issues with original Raven with IOMMU enabled. So far there have been no issues observed with PCO or RV2. v2: split out the dm init and domain changes into separate patches. Acked-by: Harry Wentland Acked-by: Huang Rui Acked-by: Christian König Signed-off-by: Alex Deucher

Revert "drm/amd/display: enable S/G for RAVEN chip"

2019-11-19T15:12:54+00:00

This reverts commit 1c4259159132ae4ceaf7c6db37a6cf76417f73d9. S/G display is not stable with the IOMMU enabled on some platforms. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205523 Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: remove set but not used variable 'amdgpu_connector'

2019-11-13T20:29:46+00:00

Fixes gcc '-Wunused-but-set-variable' warning: drivers/gpu/drm/amd/amdgpu/amdgpu_display.c: In function ‘amdgpu_display_crtc_scaling_mode_fixup’: drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:693:27: warning: variable ‘amdgpu_connector’ set but not used [-Wunused-but-set-variable] Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)") Signed-off-by: yu kuai Signed-off-by: Alex Deucher

drm/amdgpu: Iterate through DRM connectors correctly

2019-10-03T14:11:05+00:00

Currently, every single piece of code in amdgpu that loops through connectors does it incorrectly and doesn't use the proper list iteration helpers, drm_connector_list_iter_begin() and drm_connector_list_iter_end(). Yeesh. So, do that. Cc: Juston Li Cc: Imre Deak Cc: Ville Syrjälä Cc: Harry Wentland Cc: Daniel Vetter Reviewed-by: Alex Deucher Signed-off-by: Lyude Paul Signed-off-by: Alex Deucher