kernel/linux.git/drivers/gpu/drm/msm/msm_fbdev.c, branch v4.18.18

drm/msm: don't deref error pointer in the msm_fbdev_create error path

2018-04-19T14:09:41+00:00

Currently the error pointer returned by msm_alloc_stolen_fb gets passed to drm_framebuffer_remove. The latter handles only NULL pointers, thus a nasty crash will occur. Drop the unnecessary fail label and the associated checks - both err and fb will be set at this stage. Cc: Rob Clark Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Emil Velikov Signed-off-by: Rob Clark

Merge tag 'drm-msm-next-2017-08-22' of git://people.freedesktop.org/~robclark/linux into drm-next

2017-08-24T23:29:45+00:00

Updates for 4.14.. I have some further patches from Jordan to add multiple priority levels and pre-emption, but those will probably be for 4.15 to give me time for the mesa parts. * tag 'drm-msm-next-2017-08-22' of git://people.freedesktop.org/~robclark/linux: drm/msm/mdp5: mark runtime_pm functions as __maybe_unused drm/msm: remove unused variable drm/msm/mdp5: make helper function static drm/msm: make msm_framebuffer_init() static drm/msm: add helper to allocate stolen fb drm/msm: don't track fbdev's gem object separately drm/msm: add modeset module param drm/msm/mdp5: add tracking for clk enable-count drm/msm: remove unused define drm/msm: Add a helper function for in-kernel buffer allocations drm/msm: Attach the GPU MMU when it is created drm/msm: Add A5XX hardware fault detection drm/msm: Remove uneeded platform dev members drm/msm/mdp5: Set up runtime PM for MDSS drm/msm/mdp5: Write to SMP registers even if allocations don't change drm/msm/mdp5: Don't use mode_set helper funcs for encoders and CRTCs drm/msm/dsi: Implement RPM suspend/resume callbacks drm/msm/dsi: Set up runtime PM for DSI drm/msm/hdmi: Set up runtime PM for HDMI drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks

drm/msm: add helper to allocate stolen fb

2017-08-22T17:20:39+00:00

We'll later want to re-use this for state-readback when bootloader enables display, so that we can create an fb for the initial plane->state->fb. Signed-off-by: Rob Clark

drm/msm: don't track fbdev's gem object separately

2017-08-22T17:20:38+00:00

The drm_framebuffer is refcnt'd these days and will unref the underlying bo as needed. So we can simplify a little. Signed-off-by: Rob Clark

drm/: Drop fbdev info flags

2017-07-26T11:22:40+00:00

- FBINFO_CAN_FORCE_OUTPUT has been a lie ever since we nerfed&removed the entire panic handling code in our fbdev emulation. We might restore kms panic output, but not through the bazillion of legacy code layers called fbdev/fbcon, there's just no way to make that work safely. - With the module check change FBINFO_DEFAULT is always 0, so can be removed too. That removes another change to cargo-cult stuff in kms drivers, yay! Reviewed-by: Sean Paul Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20170706125735.28299-5-daniel.vetter@ffwll.ch Signed-off-by: Daniel Vetter

drm/msm: Separate locking of buffer resources from struct_mutex

2017-06-17T12:03:07+00:00

Buffer object specific resources like pages, domains, sg list need not be protected with struct_mutex. They can be protected with a buffer object level lock. This simplifies locking and makes it easier to avoid potential recursive locking scenarios for SVM involving mmap_sem and struct_mutex. This also removes unnecessary serialization when creating buffer objects, and also between buffer object creation and GPU command submission. Signed-off-by: Sushmita Susheelendra [robclark: squash in handling new locking for shrinker] Signed-off-by: Rob Clark

drm/msm: pass address-space to _get_iova() and friends

2017-06-16T15:16:04+00:00

No functional change, that will come later. But this will make it easier to deal with dynamically created address spaces (ie. per- process pagetables for gpu). Signed-off-by: Rob Clark

drm/msm/mdp4+5: move aspace/id to base class

2017-06-16T15:16:03+00:00

Before we can shift to passing the address-space object to _get_iova(), we need to fix a few places (dsi+fbdev) that were hard-coding the adress space id. That gets somewhat easier if we just move these to the kms base class. Prep work for next patch. Signed-off-by: Rob Clark

drm/msm: fix include notation and remove -Iinclude/drm flag

2017-05-17T12:35:54+00:00

Include instead of relative path from include/drm, then remove the -Iinclude/drm compiler flag. While we are here, sort the touched parts with public headers first. mdp4_kms.h must declare struct device_node to be self-contained. Signed-off-by: Masahiro Yamada Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-11-git-send-email-yamada.masahiro@socionext.com

drm/fb-helper: Automatically clean up fb_info

2017-02-07T20:36:28+00:00

Noticed that everyone duplicates the same logic here and we could safe a few lines per driver. Yay for lots of drivers to make such tiny refactors worth-while! v2: Forgot to git add everything :( v3: Actually remove release_fbi (Sean, Emil, Chris) ... Cc: Chris Wilson Cc: Sean Paul Cc: Noralf Trønnes Cc: Emil Velikov Reviewed-by: Sean Paul Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170207161603.17611-1-daniel.vetter@ffwll.ch