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cc1aeedb |
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22-Nov-2023 |
Sarah Walker <sarah.walker@imgtec.com> |
drm/imagination: Implement firmware infrastructure and META FW support 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>
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f99f5f3e |
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22-Nov-2023 |
Sarah Walker <sarah.walker@imgtec.com> |
drm/imagination: Add GPU ID parsing and firmware loading Read the GPU ID register at probe time and select the correct features/quirks/enhancements. Use the GPU ID to form the firmware file name and load the firmware. The features/quirks/enhancements arrays are currently hardcoded in the driver for the supported GPUs. We are looking at moving this information to the firmware image. Changes since v8: - Corrected license identifiers Changes since v7: - Fix kerneldoc for pvr_device_info_set_enhancements() Changes since v5: - Add BRN 71242 to device info Changes since v4: - Retrieve device information from firmware header - Pull forward firmware header parsing from FW infrastructure patch - Use devm_add_action_or_reset to release firmware Changes since v3: - Use drm_dev_{enter,exit} Co-developed-by: Frank Binns <frank.binns@imgtec.com> Signed-off-by: Frank Binns <frank.binns@imgtec.com> Co-developed-by: Matt Coster <matt.coster@imgtec.com> Signed-off-by: Matt Coster <matt.coster@imgtec.com> Co-developed-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Sarah Walker <sarah.walker@imgtec.com> Link: https://lore.kernel.org/r/1ff76f7a5b45c742279c78910f8491b8a5e7f6e6.1700668843.git.donald.robson@imgtec.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
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