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History log of /src/sys/external/bsd/drm2/dist/include/drm/drm_cache.h
RevisionDateAuthorComments
 1.11  21-May-2022  tnn drm_cache.h: fix a merge error

this reverts revision 1.3 which should have been reverted when it got
introduced by upstream through revision 1.5.
 1.10  19-Dec-2021  riastradh drm: Another pass over i915 and some supporting logic.

This makes a shim around sg_table, which essentially represents two
things:

1. an array of pages (roughly corresponding to bus_dma_segment_t[])
2. an array of DMA addresses stored in a bus_dmamap_t

Both parts are optional; different parts of i915 use sg_tables to
pass around one or both of the two parts. This helps to reduce the
ifdefs by quite a bit, although it's not always clear which part of
an sg_table any particular interface is actually using which is why I
was reluctant to do this before.
 1.9  19-Dec-2021  riastradh drm: Nix use of uvm pglist. Just use arrays of page pointers.
 1.8  19-Dec-2021  riastradh drm_os_netbsd.h is no more
 1.7  19-Dec-2021  riastradh Forward-declare some structs.
 1.6  19-Dec-2021  riastradh These declarations moved to drm_cache.h, move them along.


Author: Maya Rashish <maya@NetBSD.org>
 1.5  18-Dec-2021  riastradh Merge linux-drm-v5-6-rc3
 1.4  19-Jan-2020  jmcneill Pull in drm_os_netbsd.h for CONFIG_<arch> defines
 1.3  19-Jan-2020  jmcneill Disable the use of WC memory on Arm and Arm64. From Linux:

* The DRM driver stack is designed to work with cache coherent devices
* only, but permits an optimization to be enabled in some cases, where
* for some buffers, both the CPU and the GPU use uncached mappings,
* removing the need for DMA snooping and allocation in the CPU caches.
*
* The use of uncached GPU mappings relies on the correct implementation
* of the PCIe NoSnoop TLP attribute by the platform, otherwise the GPU
* will use cached mappings nonetheless. On x86 platforms, this does not
* seem to matter, as uncached CPU mappings will snoop the caches in any
* case. However, on ARM and arm64, enabling this optimization on a
* platform where NoSnoop is ignored results in loss of coherency, which
* breaks correct operation of the device. Since we have no way of
* detecting whether NoSnoop works or not, just disable this
* optimization entirely for ARM and arm64.
 1.2  27-Aug-2018  riastradh branches: 1.2.6;
merge linux-drm-v4-4-143
 1.1  23-Jul-2013  riastradh branches: 1.1.1;
Initial revision
 1.1.1.3  18-Dec-2021  riastradh Import drm from Linux v5.6-rc3 (commit f8788d86ab28f61f7b46eb6be375f8a726783636)

drivers/gpu/drm -> sys/external/bsd/drm2/dist/drm
include/drm -> sys/external/bsd/drm2/dist/include/drm
include/uapi/drm -> sys/external/bsd/drm2/dist/include/uapi/drm

GPL exclusions in dist/drm:

- amd/amdgpu/amdgpu_atpx_handler.c
- arc/
- arm/
- armada/
- aspeed/
- atmel-hlcdc/
- bochs/
- bridge/
- cirrus/
- drm_dp_cec.c
- drm_dp_mst_topology_internal.h
- drm_edid_load.c
- drm_format_helper.c
- drm_gem_cma_helper.c
- drm_gem_framebuffer_helper.c
- drm_gem_shmem_helper.c
- drm_gem_ttm_helper.c
- drm_gem_vram_helper.c
- drm_hdcp.c
- drm_lease.c
- drm_mipi_dbi.c
- drm_simple_kms_helper.c
- drm_sysfs.c
- drm_trace.h
- drm_vram_helper_common.c
- drm_writeback.c
- etnaviv/
- exynos/
- fsl-dcu/
- gma500/
- hisilicon/
- i2c/tda9950.c
- i2c/tda998x_drv.c
- i915/gt/selftest_context.c
- i915/gt/selftest_engine.c
- i915/gt/selftest_engine.h
- i915/gt/selftest_engine_cs.c
- i915/gt/selftest_engine_pm.c
- i915/i915_trace.h
- i915/selftests/i915_live_selftests.h
- i915/selftests/i915_mock_selftests.h
- i915/selftests/i915_perf_selftests.h
- i915/selftests/lib_sw_fence.h
- imx/
- ingenic/
- lima/
- mcde/
- mediatek/
- meson/
- mgag200/
- msm/
- mxsfb/
- omapdrm/
- panel/
- panfrost/
- pl111/
- radeon/radeon_atpx_handler.c
- rcar-du/
- rockchip/
- selftests/drm_cmdline_selftests.h
- selftests/drm_modeset_selftests.h
- selftests/test-drm_cmdline_parser.c
- selftests/test-drm_damage_helper.c
- selftests/test-drm_dp_mst_helper.c
- selftests/test-drm_format.c
- selftests/test-drm_framebuffer.c
- selftests/test-drm_modeset_common.c
- selftests/test-drm_modeset_common.h
- selftests/test-drm_plane_helper.c
- selftests/test-drm_rect.c
- shmobile/
- sti/
- stm/
- sun4i/
- tegra/
- tilcdc/
- tiny/
- tve200/
- udl/
- v3d/
- vc4/
- virtio/virtgpu_trace.h
- virtio/virtgpu_trace_points.c
- vkms/
- vmwgfx/device_include/vmware_pack_begin.h
- vmwgfx/device_include/vmware_pack_end.h
- zte/

Exceptions -- these all appear to be files to which someone added
an SPDX license header automatically by a script that is not aware
of the default MIT licensing under drivers/gpu/drm:

- ast/ast_dp501.c
- ast/ast_dram_tables.h
- lib/drm_random.c
- lib/drm_random.h
- i915/display/intel_acpi.c
- i915/selftests/mock_gem_device.h
- i915/selftests/i915_mock_selftests.h
- i915/selftests/i915_live_selftests.h
- r128/ati_pcigart.h
- selftests/drm_mm_selftests.h
- selftests/test-drm_mm.c
- vmwgfx/device_include/vm_basic_types.h

GPL exclusions in dist/include/drm:

- bridge
- drm_client.h
- drm_fb_cma_helper.h
- drm_format_helper.h
- drm_gem_cma_helper.h
- drm_gem_shmem_helper.h
- drm_gem_ttm_helper.h
- drm_gem_vram_helper.h
- drm_lease.h
- drm_mipi_dbi.h
- drm_mipi_dsi.h
- drm_of.h
- drm_simple_kms_helper.h
- drm_sysfs.h
- drm_writeback.h
- gma_drm.h
- i2c/tda998x.h
- i915_mei_hdcp_interface.h
- intel-gtt.h

Exceptions:
- drm_agpsupport.h - was in original drm; wrong spdx header auto-added

GPL exclusions in dist/include/uapi/drm:

- armada_drm.h
- etnaviv_drm.h
- exynos_drm.h
- lima_drm.h
- omap_drm.h

Exceptions:
- i810_drm.h - was in original drm; spdx header is wrong
 1.1.1.2  27-Aug-2018  riastradh Import drm from Linux v4.4.143 (commit a8ea6276d00555387deaaa5eaeb380cd5c17bdc9).

drivers/gpu/drm -> sys/external/bsd/drm2/dist/drm
include/drm -> sys/external/bsd/drm2/dist/include/drm
include/uapi/drm -> sys/external/bsd/drm2/dist/uapi/drm

GPL sources excluded.
 1.1.1.1  23-Jul-2013  riastradh branches: 1.1.1.1.2; 1.1.1.1.4; 1.1.1.1.8; 1.1.1.1.12; 1.1.1.1.36; 1.1.1.1.38;
Import drm sources from Linux v3.8-rc6.
(commit id 88b62b915b0b7e25870eb0604ed9a92ba4bfc9f7)

Linux NetBSD
drivers/gpu/drm sys/external/bsd/drm2/dist/drm
include/drm sys/external/bsd/drm2/dist/include/drm
include/uapi/drm sys/external/bsd/drm2/dist/uapi/drm

Files/subtrees excluded because of licence issues, to be either
revisited later (particularly nouveau and radeon, which are mostly
permissively licensed but a number of whose files have no licence
statements), rewritten/ignored, or imported later as kernel modules
under external/gpl2 instead:

include/drm/drm_fb_cma_helper.h
include/drm/drm_gem_cma_helper.h
include/drm/drm_os_linux.h
include/drm/drm_pciids.h
include/drm/drm_sysfs.h
include/drm/drm_usb.h
include/drm/exynos_drm.h
include/drm/gma_drm.h
include/drm/intel-gtt.h
drm/cirrus
drm/drm_edid_load.c
drm/drm_fb_cma_helper.c
drm/drm_gem_cma_helper.c
drm/drm_sysfs.c
drm/drm_trace.h
drm/drm_trace_points.c
drm/drm_usb.c
drm/exynos
drm/gma500
drm/i915/i915_trace.h
drm/i915/i915_trace_points.c
drm/i915/intel_acpi.c
drm/mgag200
drm/nouveau
drm/radeon
drm/shmobile
drm/tegra
drm/udl
uapi/exynos_drm.h
 1.1.1.1.38.2  08-Apr-2020  martin Merge changes from current as of 20200406
 1.1.1.1.38.1  10-Jun-2019  christos Sync with HEAD
 1.1.1.1.36.1  06-Sep-2018  pgoyette Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)
 1.1.1.1.12.2  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.1.1.1.12.1  23-Jul-2013  tls file drm_cache.h was added on branch tls-maxphys on 2014-08-20 00:04:20 +0000
 1.1.1.1.8.2  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.1.1.1.8.1  23-Jul-2013  yamt file drm_cache.h was added on branch yamt-pagecache on 2014-05-22 11:40:55 +0000
 1.1.1.1.4.2  28-Aug-2013  rmind sync with head
 1.1.1.1.4.1  23-Jul-2013  rmind file drm_cache.h was added on branch rmind-smpnet on 2013-08-28 23:59:34 +0000
 1.1.1.1.2.2  23-Jul-2013  riastradh sync with HEAD and actually get the drm2 import
 1.1.1.1.2.1  23-Jul-2013  riastradh file drm_cache.h was added on branch riastradh-drm2 on 2013-07-23 21:28:23 +0000
 1.2.6.1  25-Jan-2020  ad Sync with head.

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