kernel/linux.git/drivers/gpu/drm/v3d, branch v5.16.1

drm/v3d: fix copy_from_user() error codes

2021-10-11T20:21:14+00:00

The copy_to/from_user() function returns the number of bytes remaining to be copied, but we want to return -EFAULT on error. Fixes: e4165ae8304e ("drm/v3d: add multiple syncobjs support") Signed-off-by: Dan Carpenter Reviewed-by: Melissa Wen Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20211011123303.GA14314@kili

drm/v3d: add multiple syncobjs support

2021-10-04T09:08:46+00:00

Using the generic extension from the previous patch, a specific multisync extension enables more than one in/out binary syncobj per job submission. Arrays of syncobjs are set in struct drm_v3d_multisync, that also cares of determining the stage for sync (wait deps) according to the job queue. v2: - subclass the generic extension struct (Daniel) - simplify adding dependency conditions to make understandable (Iago) v3: - fix conditions to consider single or multiples in/out_syncs (Iago) - remove irrelevant comment (Iago) Signed-off-by: Melissa Wen Reviewed-by: Iago Toral Quiroga Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/ffd8b2e3dd2e0c686db441a0c0a4a0181ff85328.1633016479.git.mwen@igalia.com

drm/v3d: add generic ioctl extension

2021-10-04T09:08:46+00:00

Add support to attach generic extensions on job submission. This patch is third prep work to enable multiple syncobjs on job submission. With this work, when the job submission interface needs to be extended to accommodate a new feature, we will use a generic extension struct where an id determines the data type to be pointed. The first application is to enable multiples in/out syncobj (next patch), but the base is already done for future features. Therefore, to attach a new feature, a specific extension struct should subclass drm_v3d_extension and update the list of extensions in a job submission. v2: - remove redundant elements to subclass struct (Daniel) v3: - add comment for v3d_get_extensions Signed-off-by: Melissa Wen Reviewed-by: Iago Toral Quiroga Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/ed53b1cd7e3125b76f18fe3fb995a04393639bc6.1633016479.git.mwen@igalia.com

drm/v3d: alloc and init job in one shot

2021-10-04T09:08:16+00:00

Move job memory allocation to v3d_job_init function. This aim to facilitate error handling in job initialization, since cleanup steps are similar for all (struct v3d_job)-based types of job involved in a command submission. To generalize v3d_job_init(), this change takes into account that all job structs have the first element a struct v3d_job (bin, render, tfu, csd) or it is a v3d_job itself (clean_job) for pointer casting. v3: - explicitly init job as NULL (Iago) - fix pm failure handling on v3_job_init (Iago) Suggested-by: Iago Toral Quiroga Signed-off-by: Melissa Wen Reviewed-by: Iago Toral Quiroga Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/4d12e07bd334d2cddb51cabd359e99edde595619.1633016479.git.mwen@igalia.com

drm/v3d: decouple adding job dependencies steps from job init

2021-10-04T09:00:20+00:00

Prep work to enable a job to wait for more than one syncobj before start. Also get rid of old checkpatch warnings in the v3d_gem file. No functional changes. Signed-off-by: Melissa Wen Reviewed-by: Iago Toral Quiroga Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/825f5fdd540b0aa2eb57bd5ff93c0777808b108c.1633016479.git.mwen@igalia.com

drm/v3d: Make use of the helper function devm_platform_ioremap_resource_byname()

2021-09-20T12:37:34+00:00

Use the devm_platform_ioremap_resource_byname() helper instead of calling platform_get_resource_byname() and devm_ioremap_resource() separately Signed-off-by: Cai Huoqing Reviewed-by: Melissa Wen Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210901112941.31320-1-caihuoqing@baidu.com

drm/v3d: fix sched job resources cleanup when a job is aborted

2021-09-19T19:40:23+00:00

In a cl submission, when bin job initialization fails, sched job resources were already allocated for the render job. At this point, drm_sched_job_init(render) was done in v3d_job_init but the render job is aborted before drm_sched_job_arm (in v3d_job_push) happens; therefore, not only v3d_job_put but also drm_sched_job_cleanup should be called (by v3d_job_cleanup). A similar issue is addressed for csd and tfu submissions. The issue was noticed from a review by Iago Toral in a patch that touches the same part of the code. Fixes: 916044fac8623 ("drm/v3d: Move drm_sched_job_init to v3d_job_init") Signed-off-by: Melissa Wen Reviewed-by: Iago Toral Quiroga Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210916212726.2u2psq2egwy2mdva@mail.igalia.com

drm/v3d: fix wait for TMU write combiner flush

2021-09-15T17:43:37+00:00

The hardware sets the TMUWCF bit back to 0 when the TMU write combiner flush completes so we should be checking for that instead of the L2TFLS bit. v2 (Melissa Wen): - Add Signed-off-by and Fixes tags. - Change the error message for the timeout to be more clear. Fixes spurious Vulkan CTS failures in: dEQP-VK.binding_model.descriptorset_random.* Fixes: d223f98f02099 ("drm/v3d: Add support for compute shader dispatch.") Signed-off-by: Iago Toral Quiroga Reviewed-by: Melissa Wen Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210915100507.3945-1-itoral@igalia.com

drm/v3d: Use scheduler dependency handling

2021-08-30T08:58:47+00:00

With the prep work out of the way this isn't tricky anymore. Aside: The chaining of the various jobs is a bit awkward, with the possibility of failure in bad places. I think with the drm_sched_job_init/arm split and maybe preloading the job->dependencies xarray this should be fixable. v2: Rebase over renamed function names for adding dependencies. Reviewed-by: Melissa Wen (v1) Acked-by: Emma Anholt Cc: Melissa Wen Signed-off-by: Daniel Vetter Cc: Emma Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20210805104705.862416-11-daniel.vetter@ffwll.ch

drm/v3d: Move drm_sched_job_init to v3d_job_init

2021-08-30T08:58:40+00:00

Prep work for using the scheduler dependency handling. We need to call drm_sched_job_init earlier so we can use the new drm_sched_job_await* functions for dependency handling here. v2: Slightly better commit message and rebase to include the drm_sched_job_arm() call (Emma). v3: Cleanup jobs under construction correctly (Emma) v4: Rebase over perfmon patch Reviewed-by: Melissa Wen (v3) Acked-by: Emma Anholt Cc: Melissa Wen Signed-off-by: Daniel Vetter Cc: Emma Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20210805104705.862416-10-daniel.vetter@ffwll.ch