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linux-xiaomi-chiron/include/drm
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Thomas Zimmermann d9b42dfab5 drm/client: Support unmapping of DRM client buffers 
DRM clients, such as the fbdev emulation, have their buffer objects
mapped by default. Mapping a buffer implicitly prevents its relocation.
Hence, the buffer may permanently consume video memory while it's
allocated. This is a problem for drivers of low-memory devices, such as
ast, mgag200 or older framebuffer hardware, which will then not have
enough memory to display other content (e.g., X11).

This patch introduces drm_client_buffer_vmap() and _vunmap(). Internal
DRM clients can use these functions to unmap and remap buffer objects
as needed.

There's no reference counting for vmap operations. Callers are expected
to either keep buffers mapped (as it is now), or call vmap and vunmap
in pairs around code that accesses the mapped memory.

v2:
	* remove several duplicated NULL-pointer checks
v3:
	* style and typo fixes

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/315831/
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-01 15:01:22 +02:00
..
bridge drm main pull request for v5.3-rc1 (sans mm changes) 2019-07-15 19:04:27 -07:00
i2c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tinydrm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ttm Revert "Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next" 2019-07-16 04:07:13 +10:00
amd_asic_type.h drm/amdgpu: add navi10 asic type 2019-06-20 15:54:56 -05:00
ati_pcigart.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drm_agpsupport.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drm_atomic.h drm: Add helpers to kick off self refresh mode in drivers 2019-06-13 14:31:10 -04:00
drm_atomic_helper.h drm/atomic: Move __drm_atomic_helper_disable_plane/set_config() 2019-06-08 16:46:37 +02:00
drm_atomic_state_helper.h drm/atomic: Add a function to reset connector TV properties 2019-06-19 12:17:52 +02:00
drm_atomic_uapi.h drm: extract drm_atomic_uapi.c 2018-09-09 14:19:18 +02:00
drm_audio_component.h Prep patches + headers for the mei-hdcp/i915 component interfaces 2019-02-20 11:53:48 +02:00
drm_auth.h drm: make drm/drm_auth.h self contained 2019-05-27 18:05:44 +02:00
drm_blend.h drm: Add per-plane pixel blend mode property 2018-08-24 17:31:37 +01:00
drm_bridge.h drm-misc-next for v5.3: 2019-06-14 11:44:24 +02:00
drm_cache.h drm: change func to better detect wether swiotlb is needed 2019-02-20 13:29:29 +01:00
drm_client.h drm/client: Support unmapping of DRM client buffers 2019-08-01 15:01:22 +02:00
drm_color_mgmt.h drm: Constify drm_color_lut_check() 2019-01-29 23:26:12 +02:00
drm_connector.h drm/modes: Parse overscan properties 2019-06-19 12:17:51 +02:00
drm_crtc.h drm: Add helpers to kick off self refresh mode in drivers 2019-06-13 14:31:10 -04:00
drm_crtc_helper.h drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
drm_damage_helper.h drm/damage-helper: Add drm_atomic_helper_damage_merged() 2019-01-17 10:56:54 +01:00
drm_debugfs.h drm: drm_debugfs.h self-contained 2019-06-10 22:30:24 +02:00
drm_debugfs_crc.h drm/crc: Only report a single overflow when a CRC fd is opened 2018-07-06 14:57:03 +02:00
drm_device.h drm: Integrate VRAM MM into struct drm_device 2019-05-15 16:17:06 +02:00
drm_displayid.h drm/edid: parse CEA blocks embedded in DisplayID 2019-06-25 14:32:26 +10:00
drm_dp_dual_mode_helper.h
drm_dp_helper.h Merge branch 'drm-next' into drm-next-5.3 2019-06-25 08:42:25 -05:00
drm_dp_mst_helper.h Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
drm_drv.h drm: introduce a capability flag for syncobj timeline support 2019-05-02 12:36:47 +10:00
drm_dsc.h drm/dsc: Split DSC PPS and SDP header initialisations 2019-03-05 13:24:34 -05:00
drm_edid.h Linux 5.2-rc5 2019-06-19 12:07:29 +02:00
drm_encoder.h drm: Add drm/drm_util.h header file 2018-09-09 14:18:11 +02:00
drm_encoder_slave.h drm: remove include of drmP.h from drm_encoder_slave.h 2019-01-09 22:35:35 +01:00
drm_fb_cma_helper.h drm/cma-helper: Remove unused fbdev code 2019-01-17 10:56:38 +01:00
drm_fb_helper.h drm/fb-helper: Prepare to move out modeset config code 2019-06-11 14:47:17 +02:00
drm_file.h drm/legacy: remove some legacy lock struct members 2019-04-24 12:36:32 +10:00
drm_fixed.h
drm_flip_work.h drm/kms-helpers: Use recommened kerneldoc for struct member refs 2017-01-25 16:18:57 +01:00
drm_format_helper.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
drm_fourcc.h drm/fourcc: Fix the parameters name in the documentation 2019-05-21 16:58:05 +02:00
drm_framebuffer.h drm/fb: document dirty helper better 2019-06-11 18:02:48 +02:00
drm_gem.h drm/gem: Unexport drm_gem_(un)pin/v(un)map 2019-06-17 17:37:01 +02:00
drm_gem_cma_helper.h drm: remove drmP.h from drm_gem_cma_helper.h 2019-01-09 22:54:08 +01:00
drm_gem_framebuffer_helper.h drm/gem-fb-helper: Add drm_gem_fb_create_with_dirty() 2019-01-17 10:56:45 +01:00
drm_gem_shmem_helper.h drm: Add library for shmem backed GEM objects 2019-03-14 12:06:44 -07:00
drm_gem_vram_helper.h drm: Remove functions with kmap-object argument from GEM VRAM helpers 2019-06-13 13:37:36 +02:00
drm_hashtab.h drm: drop extern from function decls 2017-03-24 09:36:06 +01:00
drm_hdcp.h drm/hdcp: gathering hdcp related code into drm_hdcp.c 2019-05-09 09:44:41 +02:00
drm_ioctl.h drm: remove all control node code 2018-05-03 21:26:32 +02:00
drm_irq.h drm: Extract drm_vblank.[hc] 2017-06-01 08:02:14 +02:00
drm_lease.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
drm_legacy.h drm: make drm/drm_legacy.h self-contained 2019-05-27 18:06:15 +02:00
drm_mipi_dsi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
drm_mm.h drm/mm: Add a search-by-address variant to only inspect a single hole 2018-05-24 15:04:30 +01:00
drm_mode_config.h drm: Fix docbook warnings in hdr metadata helper structures 2019-06-04 14:03:53 +02:00
drm_mode_object.h drm: remove drm_mode_object_{un/reference} aliases 2018-03-19 09:09:46 -04:00
drm_modes.h drm/selftests: reduce stack usage 2019-07-01 09:50:58 +02:00
drm_modeset_helper.h drm: remove drmP.h from drm_modeset_helper.h 2019-02-07 21:48:34 +01:00
drm_modeset_helper_vtables.h Linux 5.2-rc5 2019-06-19 12:07:29 +02:00
drm_modeset_lock.h drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_of.h drm: of: Export and rename drm_crtc_port_mask() 2018-06-27 21:44:04 +02:00
drm_os_linux.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drm_panel.h This is the 4.19-rc6 release 2018-10-04 11:03:34 +10:00
drm_pci.h drm: drop drm_pcie_get_speed_cap_mask and drm_pcie_get_max_link_width 2018-07-05 16:40:00 -05:00
drm_pciids.h drm/radeon: change SPDX identifier to MIT 2018-10-15 16:16:12 -05:00
drm_plane.h drm/docs: More links for implicit/explicit fencing. 2019-06-03 17:11:33 +02:00
drm_plane_helper.h drm: Unexport drm_plane_helper_check_update 2018-10-05 22:45:19 +02:00
drm_prime.h drm/prime: Add drm_gem_prime_mmap() 2018-11-20 14:54:53 +01:00
drm_print.h drm: fix build errors with drm_print.h 2019-06-10 22:58:53 +02:00
drm_probe_helper.h drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
drm_property.h drm: Fix kernel doc for DRM_MODE_PROP_IMMUTABLE 2018-10-03 13:05:12 -07:00
drm_rect.h drm: Nuke drm_calc_{h,v}scale_relaxed() 2019-02-07 13:14:06 +02:00
drm_scdc_helper.h drm: Fix warning when building docs for scdc_helper 2017-07-31 14:24:14 +02:00
drm_self_refresh_helper.h drm: Add helpers to kick off self refresh mode in drivers 2019-06-13 14:31:10 -04:00
drm_simple_kms_helper.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
drm_syncobj.h drm/syncobj: add new drm_syncobj_add_point interface v4 2019-04-01 12:05:53 +02:00
drm_sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drm_util.h drm: fix drm_can_sleep() comment 2019-01-21 10:30:12 +01:00
drm_utils.h drm: export drm_timeout_abs_to_jiffies 2019-03-07 12:00:30 -06:00
drm_vblank.h drm/vblank: Allow dynamic per-crtc max_vblank_count 2019-01-14 21:23:55 +02:00
drm_vma_manager.h drm: increase drm mmap_range size to 1TB 2019-04-24 16:20:23 -05:00
drm_vram_mm_helper.h drm: Integrate VRAM MM into struct drm_device 2019-05-15 16:17:06 +02:00
drm_writeback.h drm: writeback: Add job prepare and cleanup operations 2019-03-18 17:24:38 +02:00
drmP.h drm next pull request for 5.1 2019-03-08 08:23:15 -08:00
gma_drm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
gpu_scheduler.h drm/scheduler: Add flag to hint the release of guilty job. 2019-05-02 15:50:55 -05:00
i915_component.h drm/i915: MEI interface definition 2019-02-15 18:56:35 +01:00
i915_drm.h drm/i915: enum port definition is moved into i915_drm.h 2019-02-15 18:56:35 +01:00
i915_mei_hdcp_interface.h drm/i915: header for i915 - MEI_HDCP interface 2019-02-15 18:56:35 +01:00
i915_pciids.h drm/i915/icl: More workaround for port F detection due to broken VBTs 2019-05-14 13:46:59 +03:00
intel-gtt.h drm: include kernel.h and agp_backend.h from intel-gtt.h 2019-01-02 11:37:47 +02:00
intel_lpe_audio.h ALSA: x86: Register multiple PCM devices for the LPE audio card 2017-05-03 16:24:00 +03:00
spsc_queue.h drm: move amd_gpu_scheduler into common location 2017-12-07 11:51:56 -05:00