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Age	Commit message (Collapse)	Author
2023-11-23	drm/imagination: Implement firmware infrastructure and META FW support	Sarah Walker
	The infrastructure includes parsing of the firmware image, initialising FW-side structures, handling the kernel and firmware command ringbuffers and starting & stopping the firmware processor. This patch also adds the necessary support code for the META firmware processor. Changes since v8: - Fix documentation for pvr_fwccb_process() - Corrected license identifiers Changes since v6: - Add a minimum retry count to pvr_kccb_reserve_slot_sync() Changes since v5: - Add workaround for BRN 71242 - Attempt to recover GPU on MMU flush command failure Changes since v4: - Remove use of drm_gem_shmem_get_pages() - Remove interrupt resource name Changes since v3: - Hard reset FW processor on watchdog timeout - Switch to threaded IRQ - Rework FW object creation/initialisation to aid hard reset - Added MODULE_FIRMWARE() - Use drm_dev_{enter,exit} Signed-off-by: Sarah Walker <sarah.walker@imgtec.com> Signed-off-by: Donald Robson <donald.robson@imgtec.com> Link: https://lore.kernel.org/r/bb52a8dc84f296b37dc6668dfe8fbaf2ba551139.1700668843.git.donald.robson@imgtec.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
2023-11-23	drm/imagination: Implement power management	Sarah Walker
	Add power management to the driver, using runtime pm. The power off sequence depends on firmware commands which are not implemented in this patch. Changes since v8: - Corrected license identifiers Changes since v5: - Use RUNTIME_PM_OPS() to declare PM callbacks - Add Kconfig dependency on CONFIG_PM Changes since v4: - Suspend runtime PM before unplugging device on rmmod Changes since v3: - Don't power device when calling pvr_device_gpu_fini() - Documentation for pvr_dev->lost has been improved - pvr_power_init() renamed to pvr_watchdog_init() - Use drm_dev_{enter,exit} Changes since v2: - Use runtime PM - Implement watchdog Signed-off-by: Sarah Walker <sarah.walker@imgtec.com> Signed-off-by: Donald Robson <donald.robson@imgtec.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/e09af4ef1ff514e1d6d7f97c7c5032c643c56f9c.1700668843.git.donald.robson@imgtec.com Signed-off-by: Maxime Ripard <mripard@kernel.org>