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linux/drivers/gpu/drm/i915
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Arunpravin 95ee2a8b4b drm: implement a method to free unused pages 
On contiguous allocation, we round up the size
to the *next* power of 2, implement a function
to free the unused pages after the newly allocate block.

v2(Matthew Auld):
  - replace function name 'drm_buddy_free_unused_pages' with
    drm_buddy_block_trim
  - replace input argument name 'actual_size' with 'new_size'
  - add more validation checks for input arguments
  - add overlaps check to avoid needless searching and splitting
  - merged the below patch to see the feature in action
     - add free unused pages support to i915 driver
  - lock drm_buddy_block_trim() function as it calls mark_free/mark_split
    are all globally visible

v3(Matthew Auld):
  - remove trim method error handling as we address the failure case
    at drm_buddy_block_trim() function

v4:
  - in case of trim, at __alloc_range() split_block failure path
    marks the block as free and removes it from the original list,
    potentially also freeing it, to overcome this problem, we turn
    the drm_buddy_block_trim() input node into a temporary node to
    prevent recursively freeing itself, but still retain the
    un-splitting/freeing of the other nodes(Matthew Auld)

  - modify the drm_buddy_block_trim() function return type

v5(Matthew Auld):
  - revert drm_buddy_block_trim() function return type changes in v4
  - modify drm_buddy_block_trim() passing argument n_pages to original_size
    as n_pages has already been rounded up to the next power-of-two and
    passing n_pages results noop

v6:
  - fix warnings reported by kernel test robot <lkp@intel.com>

v7:
  - modify drm_buddy_block_trim() function doc description
  - at drm_buddy_block_trim() handle non-allocated block as
    a serious programmer error
  - fix a typo

Signed-off-by: Arunpravin <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220221164552.2434-3-Arunpravin.PaneerSelvam@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
2022-02-22 13:03:00 +01:00
..
display drm-misc-next for v5.18: 2022-02-01 19:02:41 +10:00
gem drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
gt drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
gvt Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
pxp drm/i915/pxp: Hold RPM wakelock during PXP unbind 2022-01-10 13:54:53 +00:00
selftests drm-misc-next for v5.18: 2022-02-01 19:02:41 +10:00
.gitignore
i915_active_types.h drm/i915/active: remove useless i915_utils.h include 2021-12-13 12:04:44 +02:00
i915_active.c drm/i915: Remove unused bits of i915_vma/active api 2021-12-20 16:26:09 +01:00
i915_active.h drm/i915: Remove unused bits of i915_vma/active api 2021-12-20 16:26:09 +01:00
i915_cmd_parser.c
i915_config.c drm/i915: remove IS_ACTIVE 2021-10-07 11:04:05 -07:00
i915_debugfs_params.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_debugfs_params.h
i915_debugfs.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_debugfs.h
i915_deps.c drm/i915: Break out the i915_deps utility 2021-12-22 08:52:57 +01:00
i915_deps.h drm/i915: Break out the i915_deps utility 2021-12-22 08:52:57 +01:00
i915_driver.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_driver.h drm/i915/driver: add i915_driver_ prefix to functions 2021-11-17 11:47:55 +02:00
i915_drv.h Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_fixed.h
i915_gem_evict.c
i915_gem_gtt.c drm/i915: Use direction definition DMA_BIDIRECTIONAL instead of PCI_DMA_BIDIRECTIONAL 2021-09-30 16:19:45 +02:00
i915_gem_gtt.h
i915_gem_ww.c
i915_gem_ww.h
i915_gem.c drm/i915: Force ww lock for i915_gem_object_ggtt_pin_ww, v2. 2021-12-20 16:33:03 +01:00
i915_gem.h
i915_getparam.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_gpu_error.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_gpu_error.h drm/i915: Avoid allocating a page array for the gpu coredump 2021-11-26 08:26:08 +01:00
i915_ioc32.c
i915_ioc32.h
i915_iosf_mbi.h drm/i915: abstraction for iosf to compile on all archs 2021-10-27 00:32:01 -07:00
i915_irq.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_irq.h
i915_memcpy.c
i915_memcpy.h
i915_mitigations.c
i915_mitigations.h
i915_mm.c drm/i915: Skip remap_io_mapping() for non-x86 platforms 2021-12-08 13:26:14 -08:00
i915_mm.h drm/i915: Skip remap_io_mapping() for non-x86 platforms 2021-12-08 13:26:14 -08:00
i915_module.c drm: move the buddy allocator from i915 into common drm 2022-01-19 08:17:07 +01:00
i915_params.c drm/i915: Test all device memory on probing 2021-12-14 15:08:20 +05:30
i915_params.h drm/i915: Test all device memory on probing 2021-12-14 15:08:20 +05:30
i915_pci.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_pci.h
i915_perf_types.h
i915_perf.c i915: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:34 +02:00
i915_perf.h
i915_pmu.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_pmu.h
i915_priolist_types.h
i915_pvinfo.h
i915_query.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_query.h
i915_reg.h drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
i915_request.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_request.h drm/i915: Avoid using the i915_fence_array when collecting dependencies 2021-12-22 08:14:30 +01:00
i915_scatterlist.c drm: move the buddy allocator from i915 into common drm 2022-01-19 08:17:07 +01:00
i915_scatterlist.h drm/i915: Introduce refcounted sg-tables 2021-11-01 18:10:49 +01:00
i915_scheduler_types.h
i915_scheduler.c
i915_scheduler.h
i915_selftest.h
i915_suspend.c
i915_suspend.h
i915_sw_fence_work.c drm/i915: Drop stealing of bits from i915_sw_fence function pointer 2021-11-30 17:52:15 -08:00
i915_sw_fence_work.h
i915_sw_fence.c drm/i915: Drop stealing of bits from i915_sw_fence function pointer 2021-11-30 17:52:15 -08:00
i915_sw_fence.h drm/i915: Drop stealing of bits from i915_sw_fence function pointer 2021-11-30 17:52:15 -08:00
i915_switcheroo.c drm/i915/driver: add i915_driver_ prefix to functions 2021-11-17 11:47:55 +02:00
i915_switcheroo.h
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_sysfs.h
i915_trace_points.c
i915_trace.h drm/i915/trace: split out display trace to a separate file 2021-12-09 11:21:46 +02:00
i915_ttm_buddy_manager.c drm: implement a method to free unused pages 2022-02-22 13:03:00 +01:00
i915_ttm_buddy_manager.h drm: improve drm_buddy_alloc function 2022-02-22 12:54:41 +01:00
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c
i915_utils.h drm for 5.16-rc1 2021-11-02 16:47:49 -07:00
i915_vgpu.c
i915_vgpu.h
i915_vma_snapshot.c drm/i915: Update error capture code to avoid using the current vma state 2021-12-01 16:53:22 +01:00
i915_vma_snapshot.h drm/i915: Update error capture code to avoid using the current vma state 2021-12-01 16:53:22 +01:00
i915_vma_types.h Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_vma.c drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
i915_vma.h drm/i915: Remove pages_mutex and intel_gtt->vma_ops.set/clear_pages members, v3. 2021-12-20 16:31:02 +01:00
intel_device_info.c Merge tag 'drm-intel-next-2021-12-14' of ssh://git.freedesktop.org/git/drm/drm-intel into drm-next 2021-12-17 15:23:49 +10:00
intel_device_info.h Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
intel_dram.c drm/i915: Remove memory frequency calculation 2021-10-19 10:45:52 +03:00
intel_dram.h
intel_gvt.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
intel_gvt.h
intel_memory_region.c drm/i915: Test all device memory on probing 2021-12-14 15:08:20 +05:30
intel_memory_region.h drm/i915/ttm: Drop region reference counting 2021-11-25 09:36:16 +01:00
intel_pch.c drm/i915/rpl-s: Add PCH Support for Raptor Lake S 2021-12-08 13:03:04 -08:00
intel_pch.h drm/i915/rpl-s: Add PCH Support for Raptor Lake S 2021-12-08 13:03:04 -08:00
intel_pcode.c drm/i915: split out intel_pcode.[ch] to separate file 2021-10-14 18:04:17 +03:00
intel_pcode.h drm/i915: split out intel_pcode.[ch] to separate file 2021-10-14 18:04:17 +03:00
intel_pm_types.h drm/i915: split out intel_pm_types.h 2021-12-03 11:28:12 +02:00
intel_pm.c Merge tag 'drm-intel-next-2021-12-14' of ssh://git.freedesktop.org/git/drm/drm-intel into drm-next 2021-12-17 15:23:49 +10:00
intel_pm.h drm/i915/wm: provide wrappers around watermark vfuncs calls (v3) 2021-09-29 08:53:57 +03:00
intel_region_ttm.c drm/i915/ttm: Drop region reference counting 2021-11-25 09:36:16 +01:00
intel_region_ttm.h drm/i915/ttm: Drop region reference counting 2021-11-25 09:36:16 +01:00
intel_runtime_pm.c lib/stackdepot: allow optional init and stack_table allocation by kvmalloc() 2022-01-22 08:33:37 +02:00
intel_runtime_pm.h
intel_sbi.c drm/i915: rename intel_sideband.[ch] to intel_sbi.[ch] 2021-10-14 18:05:04 +03:00
intel_sbi.h drm/i915: rename intel_sideband.[ch] to intel_sbi.[ch] 2021-10-14 18:05:04 +03:00
intel_step.c drm/i915: Rename GT_STEP to GRAPHICS_STEP 2021-11-02 13:05:40 -07:00
intel_step.h drm/i915: Rename GT_STEP to GRAPHICS_STEP 2021-11-02 13:05:40 -07:00
intel_uncore.c drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
intel_uncore.h drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
intel_wakeref.c
intel_wakeref.h drm/i915/guc: Take engine PM when a context is pinned with GuC submission 2021-10-15 10:37:26 -07:00
intel_wopcm.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
intel_wopcm.h
Kconfig drm: move the buddy allocator from i915 into common drm 2022-01-19 08:17:07 +01:00
Kconfig.debug
Kconfig.profile
Kconfig.unstable
Makefile drm-misc-next for v5.18: 2022-02-01 19:02:41 +10:00
TODO.txt
vlv_sideband.c drm/i915: abstraction for iosf to compile on all archs 2021-10-27 00:32:01 -07:00
vlv_sideband.h drm/i915: split out vlv sideband to a separate file 2021-10-14 12:22:55 +03:00
vlv_suspend.c
vlv_suspend.h