kernel/linux.git/drivers/gpu/drm/radeon, branch v5.18.16

drm/radeon: fix a possible null pointer dereference

2022-06-14T16:45:13+00:00

[ Upstream commit a2b28708b645c5632dc93669ab06e97874c8244f ] In radeon_fp_native_mode(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. The failure status of drm_cvt_mode() on the other path is checked too. Signed-off-by: Gong Yuanjun Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/radeon: fix logic inversion in radeon_sync_resv

2022-04-13T08:25:25+00:00

Shared is the opposite of write/exclusive. Signed-off-by: Christian König Fixes: 0597ca7b43e4 ("drm/radeon: use new iterator in radeon_sync_resv") Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1970 Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20220412093626.608767-1-christian.koenig@amd.com

drm/radeon: Use drm_mode_copy()

2022-03-15T19:01:12+00:00

struct drm_display_mode embeds a list head, so overwriting the full struct with another one will corrupt the list (if the destination mode is on a list). Use drm_mode_copy() instead which explicitly preserves the list head of the destination mode. Even if we know the destination mode is not on any list using drm_mode_copy() seems decent as it sets a good example. Bad examples of not using it might eventually get copied into code where preserving the list head actually matters. Obviously one case not covered here is when the mode itself is embedded in a larger structure and the whole structure is copied. But if we are careful when copying into modes embedded in structures I think we can be a little more reassured that bogus list heads haven't been propagated in. @is_mode_copy@ @@ drm_mode_copy(...) { ... } @depends on !is_mode_copy@ struct drm_display_mode *mode; expression E, S; @@ ( - *mode = E + drm_mode_copy(mode, &E) | - memcpy(mode, E, S) + drm_mode_copy(mode, E) ) @depends on !is_mode_copy@ struct drm_display_mode mode; expression E; @@ ( - mode = E + drm_mode_copy(&mode, &E) | - memcpy(&mode, E, S) + drm_mode_copy(&mode, E) ) @@ struct drm_display_mode *mode; @@ - &*mode + mode Cc: Alex Deucher Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Ville Syrjälä Signed-off-by: Alex Deucher

Backmerge tag 'v5.17-rc6' into drm-next

2022-02-28T04:57:14+00:00

This backmerges v5.17-rc6 so I can merge some amdgpu and some tegra changes on top. Signed-off-by: Dave Airlie

Merge tag 'drm-misc-next-2022-02-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2022-02-24T19:50:18+00:00

drm-misc-next for v5.18: UAPI Changes: Cross-subsystem Changes: - Split out panel-lvds and lvds dt bindings . - Put yes/no on/off disabled/enabled strings in linux/string_helpers.h and use it in drivers and tomoyo. - Clarify dma_fence_chain and dma_fence_array should never include eachother. - Flatten chains in syncobj's. - Don't double add in fbdev/defio when page is already enlisted. - Don't sort deferred-I/O pages by default in fbdev. Core Changes: - Fix missing pm_runtime_put_sync in bridge. - Set modifier support to only linear fb modifier if drivers don't advertise support. - As a result, we remove allow_fb_modifiers. - Add missing clear for EDID Deep Color Modes in drm_reset_display_info. - Assorted documentation updates. - Warn once in drm_clflush if there is no arch support. - Add missing select for dp helper in drm_panel_edp. - Assorted small fixes. - Improve fb-helper's clipping handling. - Don't dump shmem mmaps in a core dump. - Add accounting to ttm resource manager, and use it in amdgpu. - Allow querying the detected eDP panel through debugfs. - Add helpers for xrgb8888 to 8 and 1 bits gray. - Improve drm's buddy allocator. - Add selftests for the buddy allocator. Driver Changes: - Add support for nomodeset to a lot of drm drivers. - Use drm_module_*_driver in a lot of drm drivers. - Assorted small fixes to bridge/lt9611, v3d, vc4, vmwgfx, mxsfb, nouveau, bridge/dw-hdmi, panfrost, lima, ingenic, sprd, bridge/anx7625, ti-sn65dsi86. - Add bridge/it6505. - Create DP and DVI-I connectors in ast. - Assorted nouveau backlight fixes. - Rework amdgpu reset handling. - Add dt bindings for ingenic,jz4780-dw-hdmi. - Support reading edid through aux channel in ingenic. - Add a drm driver for Solomon SSD130x OLED displays. - Add simple support for sharp LQ140M1JW46. - Add more panels to nt35560. Signed-off-by: Dave Airlie From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/686ec871-e77f-c230-22e5-9e3bb80f064a@linux.intel.com

Merge tag 'drm-misc-fixes-2022-02-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2022-02-24T03:53:13+00:00

* edid: Always set RGB444 * imx/dcss: Select GEM CMA helpers * radeon: Fix some variables's type * vc4: Fix codec cleanup; Fix PM reference counting Signed-off-by: Dave Airlie From: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/YhaKj4zWJ42YWRts@linux-uq9g.fritz.box

drm/radeon: fix variable type

2022-02-23T09:29:46+00:00

When we switch to dma_resv_wait_timeout() the returned type changes as well. Signed-off-by: Christian König Fixes: 89aae41d740f ("drm/radeon: use dma_resv_wait_timeout() instead of manually waiting") Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215600 Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20220221110503.2803-1-christian.koenig@amd.com

drm/radeon: remove resource accounting v2

2022-02-15T16:51:09+00:00

Use the one provided by TTM instead. v2: drop new_mem parameter as well Signed-off-by: Christian König Tested-by: Bas Nieuwenhuizen Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20220214093439.2989-5-christian.koenig@amd.com

drm/radeon: Fix backlight control on iMac 12,1

2022-02-14T20:08:41+00:00

The iMac 12,1 does not use the gmux driver for backlight, so the radeon backlight device is needed to set the brightness. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1838 Signed-off-by: Nicholas Bishop Signed-off-by: Alex Deucher

drm/radeon: Fix backlight control on iMac 12,1

2022-02-14T20:01:46+00:00