kernel/linux.git/drivers/gpu/drm/v3d, branch v5.13.5

drm/scheduler: provide scheduler score externally

2021-02-05T09:47:11+00:00

Allow multiple schedulers to share the load balancing score. This is useful when one engine has different hw rings. Signed-off-by: Christian König Reviewed-and-Tested-by: Leo Liu Link: https://patchwork.freedesktop.org/patch/msgid/20210204144405.2737-1-christian.koenig@amd.com

drm/v3d/v3d_sched: fix scheduler callbacks return status

2021-02-02T10:10:14+00:00

Looks like this was not correctly adjusted. Signed-off-by: Christian König Acked-by: Daniel Vetter Fixes: a6a1f036c74e ("drm/scheduler: Job timeout handler returns status (v3)") Link: https://patchwork.freedesktop.org/patch/msgid/20210201091159.177853-1-christian.koenig@amd.com

drm/scheduler: Job timeout handler returns status (v3)

2021-01-29T10:30:22+00:00

This patch does not change current behaviour. The driver's job timeout handler now returns status indicating back to the DRM layer whether the device (GPU) is no longer available, such as after it's been unplugged, or whether all is normal, i.e. current behaviour. All drivers which make use of the drm_sched_backend_ops' .timedout_job() callback have been accordingly renamed and return the would've-been default value of DRM_GPU_SCHED_STAT_NOMINAL to restart the task's timeout timer--this is the old behaviour, and is preserved by this patch. v2: Use enum as the status of a driver's job timeout callback method. v3: Return scheduler/device information, rather than task information. Cc: Alexander Deucher Cc: Andrey Grodzovsky Cc: Christian König Cc: Daniel Vetter Cc: Lucas Stach Cc: Russell King Cc: Christian Gmeiner Cc: Qiang Yu Cc: Rob Herring Cc: Tomeu Vizoso Cc: Steven Price Cc: Alyssa Rosenzweig Cc: Eric Anholt Reported-by: kernel test robot Signed-off-by: Luben Tuikov Acked-by: Alyssa Rosenzweig Acked-by: Christian König Acked-by: Steven Price Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/415095/

drm/v3d: Don't clear MMU control bits on exception

2021-01-06T17:38:57+00:00

MMU exception conditions are reported in the V3D_MMU_CTRL register as write-1-to-clear (W1C) bits. The MMU interrupt handling code clears any exceptions, but does so by masking out any other bits and writing the result back. There are some important control bits in that register, including MMU_ENABLE, so a safer approach is to simply write back the value just read unaltered. Signed-off-by: Phil Elwell Signed-off-by: Stefan Wahren Reviewed-by: Nicolas Saenz Julienne Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/1608755714-18233-4-git-send-email-stefan.wahren@i2se.com

drm/v3d: Set dma_mask as well as coherent_dma_mask

2021-01-06T17:38:57+00:00

Both coherent_dma_mask and dma_mask act as constraints on allocations and bounce buffer usage, so be sure to set dma_mask to the appropriate value otherwise the effective mask could be incorrect. Signed-off-by: Phil Elwell Signed-off-by: Stefan Wahren Reviewed-by: Nicolas Saenz Julienne Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/1608755714-18233-3-git-send-email-stefan.wahren@i2se.com

drm/v3d: Use platform_get_irq_optional() to get optional IRQs

2021-01-06T17:38:57+00:00

Aside from being more correct, the non optional version of the function prints an error when failing to find the IRQ. Signed-off-by: Nicolas Saenz Julienne Signed-off-by: Stefan Wahren Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/1608755714-18233-2-git-send-email-stefan.wahren@i2se.com

drm/shmem-helper: Use cached mappings by default

2020-11-24T08:10:21+00:00

SHMEM-buffer backing storage is allocated from system memory; which is typically cachable. The default mode for SHMEM objects is writecombine though. Unify SHMEM semantics by defaulting to cached mappings. The exception is pages imported via dma-buf. DMA memory is usually not cached. DRM drivers that require write-combined mappings set the map_wc flag in struct drm_gem_shmem_object to true. This currently affects lima, panfrost and v3d. The drivers mgag200, udl, virtio and vkms continue to use default shmem mappings. The drivers cirrus and gm12u320 change caching flags. Both used writecombine and now switch over to shmem defaults. Both drivers use SHMEM objects as shadow buffers for internal video memory, so cached mappings will not affect them negatively. v3: * set value of shmem pointer before dereferencing it in __drm_gem_shmem_create() (Dan, kernel test robot) v2: * recreate patch on top of latest SHMEM helpers * update lima, panfrost, v3d to select writecombine (Daniel, Rob) Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20201117133156.26822-2-tzimmermann@suse.de

drm/v3d/v3d_sched: Demote non-conformant kernel-doc header

2020-11-18T10:51:27+00:00

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/v3d/v3d_sched.c:75: warning: Function parameter or member 'sched_job' not described in 'v3d_job_dependency' drivers/gpu/drm/v3d/v3d_sched.c:75: warning: Function parameter or member 's_entity' not described in 'v3d_job_dependency' Cc: Eric Anholt Cc: David Airlie Cc: Daniel Vetter Cc: Sumit Semwal Cc: "Christian König" Cc: dri-devel@lists.freedesktop.org Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201116174112.1833368-37-lee.jones@linaro.org

drm/v3d/v3d_gem: Provide descriptions for 'v3d_lookup_bos's params

2020-11-17T19:26:47+00:00

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/v3d/v3d_gem.c:292: warning: Function parameter or member 'bo_handles' not described in 'v3d_lookup_bos' drivers/gpu/drm/v3d/v3d_gem.c:292: warning: Function parameter or member 'bo_count' not described in 'v3d_lookup_bos' Cc: Eric Anholt Cc: David Airlie Cc: Daniel Vetter Cc: Philipp Zabel Cc: Sumit Semwal Cc: "Christian König" Cc: dri-devel@lists.freedesktop.org Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201116174112.1833368-36-lee.jones@linaro.org

drm/v3d/v3d_drv: Remove unused static variable 'v3d_v3d_pm_ops'

2020-11-17T19:22:43+00:00

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/v3d/v3d_drv.c:73:32: warning: ‘v3d_v3d_pm_ops’ defined but not used [-Wunused-const-variable=] Cc: Eric Anholt Cc: David Airlie Cc: Daniel Vetter Cc: Philipp Zabel Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201116174112.1833368-35-lee.jones@linaro.org