kernel.git/drivers/gpu/drm/msm/msm_debugfs.c, branch linux-4.19.y

drm/msm: Do hw_init() before capturing GPU state

2021-12-08T07:50:14Z

commit e4840d537c2c6b1189d4de16ee0f4820e069dcea upstream. In particular, we need to ensure all the necessary blocks are switched to 64b mode (a5xx+) otherwise the high bits of the address of the BO to snapshot state into will be ignored, resulting in: *** gpu fault: ttbr0=0000000000000000 iova=0000000000012000 dir=READ type=TRANSLATION source=CP (0,0,0,0) platform 506a000.gmu: [drm:a6xx_gmu_set_oob] *ERROR* Timeout waiting for GMU OOB set BOOT_SLUMBER: 0x0 Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") Signed-off-by: Rob Clark Link: https://lore.kernel.org/r/20211108180122.487859-1-robdclark@gmail.com Signed-off-by: Rob Clark Signed-off-by: Greg Kroah-Hartman

drm/msm: fix memleak on release

2019-12-13T07:52:44Z

commit a64fc11b9a520c55ca34d82e5ca32274f49b6b15 upstream. If a process is interrupted while accessing the "gpu" debugfs file and the drm device struct_mutex is contended, release() could return early and fail to free related resources. Note that the return value from release() is ignored. Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") Cc: stable # 4.18 Cc: Jordan Crouse Cc: Rob Clark Reviewed-by: Rob Clark Signed-off-by: Johan Hovold Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20191010131333.23635-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman

drm/msm/gpu: Fix a couple memory leaks in debugfs

2018-12-21T13:15:14Z

[ Upstream commit 51270de91412b819f654b849db3bf92dac0a0855 ] The msm_gpu_open() function should free "show_priv" on error or it causes static checker warnings. Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") Signed-off-by: Dan Carpenter Signed-off-by: Rob Clark Signed-off-by: Sean Paul Signed-off-by: Sasha Levin

drm/msm/gpu: Capture the GPU state on a GPU hang

2018-07-30T12:49:56Z

Capture the GPU state on a GPU hang and store it for later playback via the devcoredump facility. Only one crash state is stored at a time on the assumption that the first hang is usually the most interesting. The existing crash state can be cleared after capturing it and then a new one will be captured on the next hang. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm/gpu: Convert the GPU show function to use the GPU state

2018-07-30T12:49:48Z

Convert the existing GPU show function to use the GPU state to dump the information rather than reading it directly from the hardware. This will require an additional step to capture the state before dumping it for the existing nodes but it will greatly facilitate reusing the same code for dumping a previously captured state from a GPU hang. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: Don't setup control node debugfs files

2018-05-03T19:26:10Z

It's going away. v2: Try harder to find them all. Reviewed-by: Sean Paul Signed-off-by: Daniel Vetter Cc: Rob Clark Cc: Jordan Crouse Cc: Nicolas Dechesne Cc: Archit Taneja Cc: Bjorn Andersson Cc: Arnd Bergmann Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180503093107.25955-1-daniel.vetter@ffwll.ch

drm/msm: add a5xx specific debugfs

2018-02-20T15:41:20Z

Add some debugfs to dump out PFP and ME microcontroller state, as well as some of the queues (MEQ and ROQ). Also add a debugfs file to trigger a GPU reset (and reloading the firmware on next submit). Signed-off-by: Rob Clark

drm/msm/gpu: use pm-runtime

2017-04-08T10:59:31Z

We need to use pm-runtime properly when IOMMU is using device_link() to control it's own clocks. Signed-off-by: Rob Clark

drm/msm/gpu: move suspend/resume into debugfs->show

2017-04-08T10:59:31Z

Each of the per-generation callbacks was doing this. Lets just simplify and move it into toplevel show() fxn. Signed-off-by: Rob Clark

drm/msm: Remove msm_debugfs_cleanup()

2017-03-08T10:24:45Z

Move the contents of msm_debugfs_cleanup() to msm_drm_uninit() to free up the drm_driver->debugfs_cleanup callback. Also remove the mdp_kms_funcs->debugfs_cleanup callback which has no users. Cc: robdclark@gmail.com Signed-off-by: Noralf Trønnes Acked-by: Rob Clark Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170307204924.1002-2-noralf@tronnes.org