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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-11-28 02:45:48 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-11-28 02:45:48 +0100 |
commit | a6ed68d6468bd5a3da78a103344ded1435fed57a (patch) | |
tree | be42a3609d7e9a2581806aab5bc1ace42f9ca992 /Documentation/gpu/i915.rst | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff) | |
parent | Merge tag 'drm-next-5.5-2019-11-22' of git://people.freedesktop.org/~agd5f/li... (diff) | |
download | linux-a6ed68d6468bd5a3da78a103344ded1435fed57a.tar.xz linux-a6ed68d6468bd5a3da78a103344ded1435fed57a.zip |
Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"Lots of stuff in here, though it hasn't been too insane this merge
apart from dealing with the security fun.
uapi:
- export different colorspace properties on DP vs HDMI
- new fourcc for ARM 16x16 block format
- syncobj: allow querying last submitted timeline value
- DRM_FORMAT_BIG_ENDIAN defined as unsigned
core:
- allow using gem vma manager in ttm
- connector/encoder/bridge doc fixes
- allow more than 3 encoders for a connector
- displayport mst suspend/resume reprobing support
- vram lazy unmapping, uniform vram mm and gem vram
- edid cleanups + AVI informframe bar info
- displayport helpers - dpcd parser added
dp_cec:
- Allow a connector to be associated with a cec device
ttm:
- pipelining with no_gpu_wait fix
- always keep BOs on the LRU
sched:
- allow free_job routine to sleep
i915:
- Block userptr from mappable GTT
- i915 perf uapi versioning
- OA stream dynamic reconfiguration
- make context persistence optional
- introduce DRM_I915_UNSTABLE Kconfig
- add fake lmem testing under unstable
- BT.2020 support for DP MSA
- struct mutex elimination
- Tigerlake display/PLL/power management improvements
- Jasper Lake PCH support
- refactor PMU for multiple GPUs
- Icelake firmware update
- Split out vga + switcheroo code
amdgpu:
- implement dma-buf import/export without helpers
- vega20 RAS enablement
- DC i2c over aux fixes
- renoir GPU reset
- DC HDCP support
- BACO support for CI/VI asics
- MSI-X support
- Arcturus EEPROM support
- Arcturus VCN encode support
- VCN dynamic powergating on RV/RV2
amdkfd:
- add navi12/14/renoir support to kfd
radeon:
- SI dpm fix ported from amdgpu
- fix bad DMA on ppc platforms
gma500:
- memory leak fixes
qxl:
- convert to new gem mmap
exynos:
- build warning fix
komeda:
- add aclk sysfs attribute
v3d:
- userspace cleanup uapi change
i810:
- fix for underflow in dispatch ioctls
ast:
- refactor show_cursor
mgag200:
- refactor show_cursor
arcgpu:
- encoder finding improvements
mediatek:
- mipi_tx, dsi and partial crtc support for MT8183 SoC
- rotation support
meson:
- add suspend/resume support
omap:
- misc refactors
tegra:
- DisplayPort support for Tegra 210, 186 and 194.
- IOMMU-backed DMA API fixes
panfrost:
- fix lockdep issue
- simplify devfreq integration
rcar-du:
- R8A774B1 SoC support
- fixes for H2 ES2.0
sun4i:
- vcc-dsi regulator support
virtio-gpu:
- vmexit vs spinlock fix
- move to gem shmem helpers
- handle large command buffers with cma"
* tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm: (1855 commits)
drm/amdgpu: invalidate mmhub semaphore workaround in gmc9/gmc10
drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub
drm/amd/amdgpu/sriov skip RLCG s/r list for arcturus VF.
drm/amd/amdgpu/sriov temporarily skip ras,dtm,hdcp for arcturus VF
drm/amdgpu/gfx10: re-init clear state buffer after gpu reset
merge fix for "ftrace: Rework event_create_dir()"
drm/amdgpu: Update Arcturus golden registers
drm/amdgpu/gfx10: fix out-of-bound mqd_backup array access
drm/amdgpu/gfx10: explicitly wait for cp idle after halt/unhalt
Revert "drm/amd/display: enable S/G for RAVEN chip"
drm/amdgpu: disable gfxoff on original raven
drm/amdgpu: remove experimental flag for Navi14
drm/amdgpu: disable gfxoff when using register read interface
drm/amdgpu/powerplay: properly set PP_GFXOFF_MASK (v2)
drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2
drm/radeon: fix bad DMA from INTERRUPT_CNTL2
drm/amd/display: Fix debugfs on MST connectors
drm/amdgpu/nv: add asic func for fetching vbios from rom directly
drm/amdgpu: put flush_delayed_work at first
drm/amdgpu/vcn2.5: fix the enc loop with hw fini
...
Diffstat (limited to 'Documentation/gpu/i915.rst')
-rw-r--r-- | Documentation/gpu/i915.rst | 82 |
1 files changed, 59 insertions, 23 deletions
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst index 3415255ad3dc..d0947c5c4ab8 100644 --- a/Documentation/gpu/i915.rst +++ b/Documentation/gpu/i915.rst @@ -246,6 +246,15 @@ Display PLLs .. kernel-doc:: drivers/gpu/drm/i915/display/intel_dpll_mgr.h :internal: +Display State Buffer +-------------------- + +.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dsb.c + :doc: DSB + +.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dsb.c + :internal: + Memory Management and Command Submission ======================================== @@ -358,15 +367,6 @@ Batchbuffer Parsing .. kernel-doc:: drivers/gpu/drm/i915/i915_cmd_parser.c :internal: -Batchbuffer Pools ------------------ - -.. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c - :doc: batch pool - -.. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c - :internal: - User Batchbuffer Execution -------------------------- @@ -415,32 +415,53 @@ Object Tiling IOCTLs .. kernel-doc:: drivers/gpu/drm/i915/gem/i915_gem_tiling.c :doc: buffer object tiling +Microcontrollers +================ + +Starting from gen9, three microcontrollers are available on the HW: the +graphics microcontroller (GuC), the HEVC/H.265 microcontroller (HuC) and the +display microcontroller (DMC). The driver is responsible for loading the +firmwares on the microcontrollers; the GuC and HuC firmwares are transferred +to WOPCM using the DMA engine, while the DMC firmware is written through MMIO. + WOPCM -===== +----- WOPCM Layout ------------- +~~~~~~~~~~~~ .. kernel-doc:: drivers/gpu/drm/i915/intel_wopcm.c :doc: WOPCM Layout GuC -=== +--- -Firmware Layout -------------------- +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c + :doc: GuC + +GuC Firmware Layout +~~~~~~~~~~~~~~~~~~~ .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_uc_fw_abi.h :doc: Firmware Layout +GuC Memory Management +~~~~~~~~~~~~~~~~~~~~~ + +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c + :doc: GuC Memory Management +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c + :functions: intel_guc_allocate_vma + + GuC-specific firmware loader ----------------------------- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c :internal: GuC-based command submission ----------------------------- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c :doc: GuC-based command submission @@ -448,11 +469,26 @@ GuC-based command submission .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c :internal: -GuC Address Space ------------------ +HuC +--- +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c + :doc: HuC +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c + :functions: intel_huc_auth -.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c - :doc: GuC Address Space +HuC Memory Management +~~~~~~~~~~~~~~~~~~~~~ + +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c + :doc: HuC Memory Management + +HuC Firmware Layout +~~~~~~~~~~~~~~~~~~~ +The HuC FW layout is the same as the GuC one, see `GuC Firmware Layout`_ + +DMC +--- +See `CSR firmware support for DMC`_ Tracing ======= @@ -514,9 +550,9 @@ i915 Perf Stream This section covers the stream-semantics-agnostic structures and functions for representing an i915 perf stream FD and associated file operations. -.. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h +.. kernel-doc:: drivers/gpu/drm/i915/i915_perf_types.h :functions: i915_perf_stream -.. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h +.. kernel-doc:: drivers/gpu/drm/i915/i915_perf_types.h :functions: i915_perf_stream_ops .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c @@ -541,7 +577,7 @@ for representing an i915 perf stream FD and associated file operations. i915 Perf Observation Architecture Stream ----------------------------------------- -.. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h +.. kernel-doc:: drivers/gpu/drm/i915/i915_perf_types.h :functions: i915_oa_ops .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c |