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9d2230dc13
As writeback jobs contain a framebuffer, drivers may need to prepare and cleanup them the same way they can prepare and cleanup framebuffers for planes. Add two new optional connector helper operations, .prepare_writeback_job() and .cleanup_writeback_job() to support this. The job prepare operation is called from drm_atomic_helper_prepare_planes() to avoid a new atomic commit helper that would need to be called by all drivers not using drm_atomic_helper_commit(). The job cleanup operation is called from the existing drm_writeback_cleanup_job() function, invoked both when destroying the job as part of a aborted commit, or when the job completes. The drm_writeback_job structure is extended with a priv field to let drivers store per-job data, such as mappings related to the writeback framebuffer. For internal plumbing reasons the drm_writeback_job structure needs to store a back-pointer to the drm_writeback_connector. To avoid pushing too much writeback-specific knowledge to drm_atomic_uapi.c, create a drm_writeback_set_fb() function, move the writeback job setup code there, and set the connector backpointer. The prepare_signaling() function doesn't need to allocate writeback jobs and can ignore connectors without a job, as it is called after the writeback jobs are allocated to store framebuffers, and a writeback fence with a framebuffer is an invalid configuration that gets rejected by the commit check. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> |
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| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||