linux-toradex.git/drivers/gpu/drm/msm/msm_rd.c, branch v6.11-rc7

drm/msm: don't create GPU-related debugfs files with no GPU present

2023-11-21T02:31:42+00:00

If there is no GPU present, skip creation of the GPU-related debugfs
files, making the MSM's debugfs more usable.

Signed-off-by: Dmitry Baryshkov 
Patchwork: https://patchwork.freedesktop.org/patch/561742/
Signed-off-by: Rob Clark

drm/msm: Use drm_gem_object in submit bos table

2023-08-10T17:44:02+00:00

Basically everywhere wants the base ptr type.  So store that instead of
msm_gem_object.

Signed-off-by: Rob Clark 
Patchwork: https://patchwork.freedesktop.org/patch/551021/

drm/msm: Move cmdstream dumping out of sched kthread

2023-06-10T13:46:12+00:00

This is something that can block for arbitrary amounts of time as
userspace consumes from the FIFO.  So we don't really want this to
be in the fence signaling path.

Signed-off-by: Rob Clark 
Patchwork: https://patchwork.freedesktop.org/patch/532617/

drm/msm/rd: Fix FIFO-full deadlock

2022-08-15T17:19:53+00:00

If the previous thing cat'ing $debugfs/rd left the FIFO full, then
subsequent open could deadlock in rd_write() (because open is blocked,
not giving a chance for read() to consume any data in the FIFO).  Also
it is generally a good idea to clear out old data from the FIFO.

Signed-off-by: Rob Clark 
Patchwork: https://patchwork.freedesktop.org/patch/496706/
Link: https://lore.kernel.org/r/20220807160901.2353471-2-robdclark@gmail.com

drm/msm: Add support for pointer params

2022-04-21T22:01:08+00:00

The 64b value field is already suffient to hold a pointer instead of
immediate, but we also need a length field.

Signed-off-by: Rob Clark 
Link: https://lore.kernel.org/r/20220317165144.222101-2-robdclark@gmail.com
Signed-off-by: Rob Clark

drm/msm/gpu: Add ctx to get_param()

2022-02-20T17:44:43+00:00

Prep work for next patch.

Signed-off-by: Rob Clark 
Link: https://lore.kernel.org/r/20220201161618.778455-2-robdclark@gmail.com
Reviewed-by: Emma Anholt 
Signed-off-by: Rob Clark

drm/msm/rd: Add chip-id

2022-02-18T15:32:52+00:00

For newer devices which deprecate gpu-id and do matching based on
chip-id, we need this information in cmdstream dumps so that the
decoding tools know how to decode them.

Signed-off-by: Rob Clark 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20220114185742.283539-1-robdclark@gmail.com
Signed-off-by: Dmitry Baryshkov

drm/msm: Remove struct_mutex usage

2021-11-28T17:50:33+00:00

The remaining struct_mutex usage is just to serialize various gpu
related things (submit/retire/recover/fault/etc), so replace
struct_mutex with gpu->lock.

Signed-off-by: Rob Clark 
Link: https://lore.kernel.org/r/20211109181117.591148-4-robdclark@gmail.com
Signed-off-by: Rob Clark

drm/msm: Conversion to drm scheduler

2021-07-28T16:19:00+00:00

For existing adrenos, there is one or more ringbuffer, depending on
whether preemption is supported.  When preemption is supported, each
ringbuffer has it's own priority.  A submitqueue (which maps to a
gl context or vk queue in userspace) is mapped to a specific ring-
buffer at creation time, based on the submitqueue's priority.

Each ringbuffer has it's own drm_gpu_scheduler.  Each submitqueue
maps to a drm_sched_entity.  And each submit maps to a drm_sched_job.

Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/4
Signed-off-by: Rob Clark 
Acked-by: Christian König 
Link: https://lore.kernel.org/r/20210728010632.2633470-10-robdclark@gmail.com
Signed-off-by: Rob Clark

drm/msm/gem: Switch over to obj->resv for locking

2020-11-05T00:00:56+00:00

This also converts the special msm_gem_get_vaddr_active() to expect the
lock to already be held.  There are two call-sites for this, one already
has the lock held, so it is more straightforward to just open-code the
locking for the other caller.

Signed-off-by: Rob Clark 
Reviewed-by: Kristian H. Kristensen 
Signed-off-by: Rob Clark