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ff5f643de0
Add a GEM implementation based on drm_gem_shmem, and support code for the
PowerVR GPU MMU. The GPU VA manager is used for address space management.
Changes since v8:
- Updated for changes to drm_gpuvm
- Switched to dma_resv locking for vm ops
- Removed linked lists for collecting BOs in vm_context and for freeing
after ops. This is now done internally in drm_gpuvm
- Corrected license identifiers
Changes since v7:
- kernel-doc fixes
- Remove prefixes from DRM_PVR_BO_* flags
- CREATE_BO ioctl now returns an error if provided size isn't page aligned
- Optimised MMU flushes
Changes since v6:
- Don't initialise kernel_vm_ctx when using MIPS firmware processor
- Rename drm_gpuva_manager uses to drm_gpuvm
- Sync GEM object to device on creation
Changes since v5:
- Use WRITE_ONCE() when writing to page tables
- Add memory barriers to page table insertion
- Fixed double backing page alloc on page table objects
- Fix BO mask checks in DRM_IOCTL_PVR_CREATE_BO handler
- Document use of pvr_page_table_*_idx when preallocing page table objs
- Remove pvr_vm_gpuva_mapping_init()
- Remove NULL check for unmap op in remap function
- Protect gem object with mutex during drm_gpuva_link/unlink
- Defer free or release of page table pages until after TLB flush
- Use drm_gpuva_op_remap_get_unmap_range() helper
Changes since v4:
- Correct sync function in vmap/vunmap function documentation
- Update for upstream GPU VA manager
- Fix missing frees when unmapping drm_gpuva objects
- Always zero GEM BOs on creation
Changes since v3:
- Split MMU and VM code
- Register page table allocations with kmemleak
- Use drm_dev_{enter,exit}
Changes since v2:
- Use GPU VA manager
- Use drm_gem_shmem
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/3c96dd170efe759b73897e3675d7310a7c4b06d0.1700668843.git.donald.robson@imgtec.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| pvr_device_info.c | ||
| pvr_device_info.h | ||
| pvr_device.c | ||
| pvr_device.h | ||
| pvr_drv.c | ||
| pvr_drv.h | ||
| pvr_fw_info.h | ||
| pvr_fw.c | ||
| pvr_fw.h | ||
| pvr_gem.c | ||
| pvr_gem.h | ||
| pvr_mmu.c | ||
| pvr_mmu.h | ||
| pvr_rogue_cr_defs_client.h | ||
| pvr_rogue_cr_defs.h | ||
| pvr_rogue_defs.h | ||
| pvr_rogue_fwif_check.h | ||
| pvr_rogue_fwif_client_check.h | ||
| pvr_rogue_fwif_client.h | ||
| pvr_rogue_fwif_common.h | ||
| pvr_rogue_fwif_dev_info.h | ||
| pvr_rogue_fwif_resetframework.h | ||
| pvr_rogue_fwif_shared_check.h | ||
| pvr_rogue_fwif_shared.h | ||
| pvr_rogue_fwif_stream.h | ||
| pvr_rogue_fwif.h | ||
| pvr_rogue_heap_config.h | ||
| pvr_rogue_meta.h | ||
| pvr_rogue_mips_check.h | ||
| pvr_rogue_mips.h | ||
| pvr_rogue_mmu_defs.h | ||
| pvr_vm.c | ||
| pvr_vm.h | ||