Commit Graph

516 Commits

Author SHA1 Message Date
Rodrigo Vivi
611ac726f9 Merge drm/drm-next into drm-intel-gt-next
Catching up with 5.14-rc1 and also preparing for a
needed common topic branch for the "Minor revid/stepping
and workaround cleanup"

Reference: https://patchwork.freedesktop.org/series/92299/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2021-07-13 15:52:51 -04:00
Jason Ekstrand
f8a9a5c2e9 drm/i915: Add gem/i915_gem_context.h to the docs
In order to prevent kernel doc warnings, also fill out docs for any
missing fields and fix those that forgot the "@".

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210708154835.528166-16-jason@jlekstrand.net
2021-07-08 19:47:00 +02:00
Matthew Brost
0454a490bd drm/doc/rfc: i915 new parallel submission uAPI plan
Add entry for i915 new parallel submission uAPI plan.

v2:
 (Daniel Vetter):
  - Expand logical order explaination
  - Add dummy header
  - Only allow N BBs in execbuf IOCTL
  - Configure parallel submission per slot not per gem context
v3:
 (Marcin Ślusarz):
  - Lot's of typos / bad english fixed
 (Tvrtko Ursulin):
  - Consistent pseudo code, clean up wording in descriptions
v4:
 (Daniel Vetter)
  - Drop flags
  - Add kernel doc
  - Reword a few things / fix typos
 (Tvrtko)
  - Reword a few things / fix typos
v5:
 (Checkpatch)
  - Fix typos
 (Docs)
  - Fix warning

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Tony Ye <tony.ye@intel.com>
CC: Carl Zhang <carl.zhang@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Tony Ye <tony.ye@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210629193511.124099-3-matthew.brost@intel.com
2021-06-30 09:51:10 +02:00
Matthew Brost
f587623b78 drm/doc/rfc: i915 GuC submission / DRM scheduler
Add entry for i915 GuC submission / DRM scheduler integration plan.
Follow up patch with details of new parallel submission uAPI to come.

v2:
 (Daniel Vetter)
  - Expand explaination of why bonding isn't supported for GuC
    submission
  - CC some of the DRM scheduler maintainers
  - Add priority inheritance / boosting use case
  - Add reasoning for removing in order assumptions
 (Daniel Stone)
  - Add links to priority spec
v4:
 (Tvrtko)
  - Add TODOs section
 (Daniel Vetter)
  - Pull in 1 line from following patch
v5:
 (Checkpatch)
  - Fix typos

Cc: Christian König <christian.koenig@amd.com>
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Steven Price <steven.price@arm.com>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210629193511.124099-2-matthew.brost@intel.com
2021-06-30 09:50:58 +02:00
Tvrtko Ursulin
577729533c drm/i915: Document the Virtual Engine uAPI
A little bit of documentation covering the topics of engine discovery,
context engine maps and virtual engines. It is not very detailed but
supposed to be a starting point of giving a brief high level overview of
general principles and intended use cases.

v2:
 * Have the text in uapi header and link from there.

v4:
 * Link from driver-uapi.rst.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210618150036.2507653-1-tvrtko.ursulin@linux.intel.com
2021-06-21 09:29:41 +01:00
Michal Wajdeczko
bfde26df7a drm/i915/doc: Include GuC ABI documentation
GuC ABI documentation is now ready to be included in i915.rst

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Cc: Piotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210616001302.84233-4-matthew.brost@intel.com
2021-06-18 15:31:38 -07:00
Matthew Brost
3e28d37146 drm/i915: Move priolist to new i915_sched_engine object
Introduce i915_sched_engine object which is lower level data structure
that i915_scheduler / generic code can operate on without touching
execlist specific structures. This allows additional submission backends
to be added without breaking the layering. Currently the execlists
backend uses 1 of these object per each engine (physical or virtual) but
future backends like the GuC will point to less instances utilizing the
reference counting.

This is a bit of detour to integrating the i915 with the DRM scheduler
but this object will still exist when the DRM scheduler lands in the
i915. It will however look a bit different. It will encapsulate the
drm_gpu_scheduler object plus and common variables (to the backends)
related to scheduling. Regardless this is a step in the right direction.

This patch starts the aforementioned transition by moving the priolist
into the i915_sched_engine object.

v3:
 (Jason Ekstrand)
  Update comment next to intel_engine_cs.virtual
  Add kernel doc
 (Checkpatch)
  Fix double the in commit message
v4:
 (Daniele)
  Update comment message.
  Add comment about subclass field

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210618010638.98941-2-matthew.brost@intel.com
2021-06-18 15:11:50 -07:00
Rodrigo Siqueira
5fd953a3f6 drm/amd/display: Add Freesync video documentation
Recently, we added support for an experimental feature named Freesync
video; for more details on that, refer to:

commit 6f59f229f8 ("drm/amd/display: Skip modeset for front porch change")
commit d10cd527f5 ("drm/amd/display: Add freesync video modes based on preferred modes")
commit 0eb1af2e82 ("drm/amd/display: Add module parameter for freesync video mode")

Nevertheless, we did not document it in detail in our driver. This
commit introduces a kernel-doc and expands the module parameter
description.

Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-18 17:06:43 -04:00
Dave Airlie
c707b73f0c Merge tag 'amd-drm-next-5.14-2021-06-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.14-2021-06-09:

amdgpu:
- SR-IOV fixes
- Smartshift updates
- GPUVM TLB flush updates
- 16bpc fixed point display fix for DCE11
- BACO cleanups and core refactoring
- Aldebaran updates
- Initial Yellow Carp support
- RAS fixes
- PM API cleanup
- DC visual confirm updates
- DC DP MST fixes
- DC DML fixes
- Misc code cleanups and bug fixes

amdkfd:
- Initial Yellow Carp support

radeon:
- memcpy_to/from_io fixes

UAPI:
- Add Yellow Carp chip family id
  Used internally in the kernel driver and by mesa

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210610031649.4006-1-alexander.deucher@amd.com
2021-06-10 13:47:13 +10:00
Dave Airlie
a2098e857b Cross-subsystem Changes:
-  x86/gpu: add JasperLake to gen11 early quirks
   (Although the patch lacks the Ack info, it has been Acked by Borislav)
 
 Driver Changes:
 
 - General DMC improves (Anusha)
 - More ADL-P enabling (Vandita, Matt, Jose, Mika, Anusha, Imre, Lucas, Jani, Manasi, Ville, Stanislav)
 - Introduce MBUS relative dbuf offset (Ville)
 - PSR fixes and improvements (Gwan, Jose, Ville)
 - Re-enable LTTPR non-transparent LT mode for DPCD_REV < 1.4 (Ville)
 - Remove duplicated declarations (Shaokun, Wan)
 - Check HDMI sink deep color capabilities during .mode_valid (Ville)
 - Fix display flicker screan related to console and FBC (Chris)
 - Remaining conversions of GRAPHICS_VER (Lucas)
 - Drop invalid FIXME (Jose)
 - Fix bigjoiner check in dsc_disable (Vandita)
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Merge tag 'drm-intel-next-2021-06-09' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Cross-subsystem Changes:

-  x86/gpu: add JasperLake to gen11 early quirks
  (Although the patch lacks the Ack info, it has been Acked by Borislav)

Driver Changes:

- General DMC improves (Anusha)
- More ADL-P enabling (Vandita, Matt, Jose, Mika, Anusha, Imre, Lucas, Jani, Manasi, Ville, Stanislav)
- Introduce MBUS relative dbuf offset (Ville)
- PSR fixes and improvements (Gwan, Jose, Ville)
- Re-enable LTTPR non-transparent LT mode for DPCD_REV < 1.4 (Ville)
- Remove duplicated declarations (Shaokun, Wan)
- Check HDMI sink deep color capabilities during .mode_valid (Ville)
- Fix display flicker screan related to console and FBC (Chris)
- Remaining conversions of GRAPHICS_VER (Lucas)
- Drop invalid FIXME (Jose)
- Fix bigjoiner check in dsc_disable (Vandita)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YMEy2Ew82BeL/hDK@intel.com
2021-06-10 13:45:11 +10:00
Dave Airlie
09b020bb05 drm-misc-next for 5.14:
UAPI Changes:
 
  * drm/panfrost: Export AFBC_FEATURES register to userspace
 
 Cross-subsystem Changes:
 
  * dma-buf: Fix debug printing; Rename dma_resv_*() functions + changes
    in callers; Cleanups
 
 Core Changes:
 
  * Add prefetching memcpy for WC
 
  * Avoid circular dependency on CONFIG_FB
 
  * Cleanups
 
  * Documentation fixes throughout DRM
 
  * ttm: Make struct ttm_resource the base of all managers + changes
    in all users of TTM; Add a generic memcpy for page-based iomem; Remove
    use of VM_MIXEDMAP; Cleanups
 
 Driver Changes:
 
  * drm/bridge: Add TI SN65DSI83 and SN65DSI84 + DT bindings
 
  * drm/hyperv: Add DRM driver for HyperV graphics output
 
  * drm/msm: Fix module dependencies
 
  * drm/panel: KD53T133: Support rotation
 
  * drm/pl111: Fix module dependencies
 
  * drm/qxl: Fixes
 
  * drm/stm: Cleanups
 
  * drm/sun4i: Be explicit about format modifiers
 
  * drm/vc4: Use struct gpio_desc; Cleanups
 
  * drm/vgem: Cleanups
 
  * drm/vmwgfx: Use ttm_bo_move_null() if there's nothing to copy
 
  * fbdev/mach64: Cleanups
 
  * fbdev/mb862xx: Use DEVICE_ATTR_RO
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Merge tag 'drm-misc-next-2021-06-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.14:

UAPI Changes:

 * drm/panfrost: Export AFBC_FEATURES register to userspace

Cross-subsystem Changes:

 * dma-buf: Fix debug printing; Rename dma_resv_*() functions + changes
   in callers; Cleanups

Core Changes:

 * Add prefetching memcpy for WC

 * Avoid circular dependency on CONFIG_FB

 * Cleanups

 * Documentation fixes throughout DRM

 * ttm: Make struct ttm_resource the base of all managers + changes
   in all users of TTM; Add a generic memcpy for page-based iomem; Remove
   use of VM_MIXEDMAP; Cleanups

Driver Changes:

 * drm/bridge: Add TI SN65DSI83 and SN65DSI84 + DT bindings

 * drm/hyperv: Add DRM driver for HyperV graphics output

 * drm/msm: Fix module dependencies

 * drm/panel: KD53T133: Support rotation

 * drm/pl111: Fix module dependencies

 * drm/qxl: Fixes

 * drm/stm: Cleanups

 * drm/sun4i: Be explicit about format modifiers

 * drm/vc4: Use struct gpio_desc; Cleanups

 * drm/vgem: Cleanups

 * drm/vmwgfx: Use ttm_bo_move_null() if there's nothing to copy

 * fbdev/mach64: Cleanups

 * fbdev/mb862xx: Use DEVICE_ATTR_RO

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YMBw3DF2b9udByfT@linux-uq9g
2021-06-10 11:28:09 +10:00
Thomas Hellström
b7e32bef4a drm: Add a prefetching memcpy_from_wc
Reading out of write-combining mapped memory is typically very slow
since the CPU doesn't prefetch. However some archs have special
instructions to do this.

So add a best-effort memcpy_from_wc taking dma-buf-map pointer
arguments that attempts to use a fast prefetching memcpy and
otherwise falls back to ordinary memcopies, taking the iomem tagging
into account.

The code is largely copied from i915_memcpy_from_wc.

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Christian König <christian.koenig@amd.com>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Link: https://lore.kernel.org/r/20210602083818.241793-5-thomas.hellstrom@linux.intel.com
Link: https://patchwork.freedesktop.org/patch/msgid/20210602083818.241793-5-thomas.hellstrom@linux.intel.com
2021-06-07 16:07:08 +02:00
Sathishkumar S
30d95a37f4 drm/amdgpu: attr to control SS2.0 bias level (v2)
add sysfs attr to read/write smartshift bias level.
document smartshift_bias sysfs attr.

V2: add attr to amdgpu_device_attrs and use attr_update (Lijo)

Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-04 12:40:00 -04:00
Sathishkumar S
a7673a1c1a drm/amd/pm: sysfs attrs to read ss powershare (v6)
add sysfs attrs to read smartshift APU and DGPU power share.
document the sysfs device attributes.

V2: change variable/macro name for stapm power limit (Lijo)
V3: files to be exposed as sysfs device attributes (Alex)
V4: check ret value of sysfs create and remove only if created.
V5: add ss attrs in amdgpu_device_attrs and use attr_update (Lijo)
V6: all checks for ss support to be in if else if statements. (Lijo)

Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-04 12:40:00 -04:00
Dave Airlie
ccd1950c2f Merge tag 'drm-intel-gt-next-2021-05-28' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Add reworked uAPI for DG1 behind CONFIG_BROKEN (Matt A, Abdiel)

Driver Changes:

- Fix for Gitlab issues #3293 and #3450:
  Avoid kernel crash on older L-shape memory machines

- Add Wa_14010733141 (VDBox SFC reset) for Gen11+ (Aditya)
- Fix crash in auto_retire active retire callback due to
  misalignment (Stephane)
- Fix overlay active retire callback alignment (Tvrtko)
- Eliminate need to align active retire callbacks (Matt A, Ville,
  Daniel)
- Program FF_MODE2 tuning value for all Gen12 platforms (Caz)
- Add Wa_14011060649 for TGL,RKL,DG1 and ADLS (Swathi)
- Create stolen memory region from local memory on DG1 (CQ)
- Place PD in LMEM on dGFX (Matt A)
- Use WC when default state object is allocated in LMEM (Venkata)
- Determine the coherent map type based on object location (Venkata)
- Use lmem physical addresses for fb_mmap() on discrete (Mohammed)
- Bypass aperture on fbdev when LMEM is available (Anusha)
- Return error value when displayable BO not in LMEM for dGFX (Mohammed)
- Do release kernel context if breadcrumb measure fails (Janusz)
- Hide modparams for compiled-out features (Tvrtko)
- Apply Wa_22010271021 for all Gen11 platforms (Caz)
- Fix unlikely ref count race in arming the watchdog timer (Tvrtko)
- Check actual RC6 enable status in PMU (Tvrtko)
- Fix a double free in gen8_preallocate_top_level_pdp (Lv)
- Use trylock in shrinker for GGTT on BSW VT-d and BXT (Maarten)
- Remove erroneous i915_is_ggtt check for
  I915_GEM_OBJECT_UNBIND_VM_TRYLOCK (Maarten)

- Convert uAPI headers to real kerneldoc (Matt A)
- Clean up kerneldoc warnings headers (Matt A, Maarten)
- Fail driver if LMEM training failed (Matt R)
- Avoid div-by-zero on Gen2 (Ville)
- Read C0DRB3/C1DRB3 as 16 bits again and add _BW suffix (Ville)
- Remove reference to struct drm_device.pdev (Thomas)
- Increase separation between GuC and execlists code (Chris, Matt B)

- Use might_alloc() (Bernard)
- Split DGFX_FEATURES from GEN12_FEATURES (Lucas)
- Deduplicate Wa_22010271021 programming on (Jose)
- Drop duplicate WaDisable4x2SubspanOptimization:hsw (Tvrtko)
- Selftest improvements (Chris, Hsin-Yi, Tvrtko)
- Shuffle around init_memory_region for stolen (Matt)
- Typo fixes (wengjianfeng)

[airlied: fix conflict with fixes in i915_active.c]
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YLCbBR22BsQ/dpJB@jlahtine-mobl.ger.corp.intel.com
2021-06-02 14:15:54 +10:00
Rodrigo Vivi
abfe041de0 Merge drm/drm-next into drm-intel-next
Getting in sync with -rc2

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2021-05-26 09:40:54 -04:00
Anusha Srivatsa
32f9402d56 drm/i915/dmc: s/intel_csr.c/intel_dmc.c and s/intel_csr.h/intel_dmc.h
Finally, rename the header and source file from csr to dmc.

v2: Add file rename in Documentation.
- Place headers in orders. (Jani)

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210518213444.11420-6-anusha.srivatsa@intel.com
2021-05-19 18:47:04 -07:00
Matthew Auld
727ecd99a4 drm/doc/rfc: drop the i915_gem_lmem.h header
The proper headers have now landed in include/uapi/drm/i915_drm.h, so we
can drop i915_gem_lmem.h and instead just reference the real headers for
pulling in the kernel doc.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210511170356.430284-1-matthew.auld@intel.com
2021-05-12 10:13:55 +01:00
Matthew Auld
2bc9c04ea7 drm/doc/rfc: i915 DG1 uAPI
Add an entry for the new uAPI needed for DG1. Also add the overall
upstream plan, including some notes for the TTM conversion.

v2(Daniel):
  - include the overall upstreaming plan
  - add a note for mmap, there are differences here for TTM vs i915
  - bunch of other suggestions from Daniel
v3:
 (Daniel)
  - add a note for set/get caching stuff
  - add some more docs for existing query and extensions stuff
  - add an actual code example for regions query
  - bunch of other stuff
 (Jason)
  - uAPI change(!):
	- try a simpler design with the placements extension
	- rather than have a generic setparam which can cover multiple
	  use cases, have each extension be responsible for one thing
	  only
v4:
 (Daniel)
  - add some more notes for ttm conversion
  - bunch of other stuff
 (Jason)
  - uAPI change(!):
	- drop all the extra rsvd members for the region_query and
	  region_info, just keep the bare minimum needed for padding
v5:
(Jason)
  - for the upstream plan, add a requirement that we send the uAPI bits
    again for final sign off before turning it on for real
  - document how we intend to extend the rsvd bits for the region query
(Kenneth)
  - improve the comment for the smem+lmem mmap mode and caching

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@linux.intel.com>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Dave Airlie <airlied@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: mesa-dev@lists.freedesktop.org
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Jon Bloomfield <jon.bloomfield@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429103056.407067-1-matthew.auld@intel.com
2021-05-04 10:48:59 +01:00
Maxime Ripard
355b602961
Merge drm/drm-next into drm-misc-next
Christian needs some patches from drm/next

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2021-04-26 14:03:09 +02:00
Daniel Vetter
bbbb6fdaa3 drm/todo: Add link to old debugfs RFC
I always forget where it was, store it until this gets picked up by an
internship again.

Cc: Wambui Karuga <wambui.karugax@gmail.com>
Cc: Melissa Wen <melissa.srw@gmail.com>
Acked-by: Melissa Wen <melissa.srw@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421152911.1871473-1-daniel.vetter@ffwll.ch
2021-04-22 01:11:39 +02:00
Matthew Auld
0c1a77cbda drm/doc: add section for driver uAPI
Add section for drm/i915 uAPI and pull in i915_drm.h.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Dave Airlie <airlied@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: mesa-dev@lists.freedesktop.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210419105741.27844-2-matthew.auld@intel.com
2021-04-21 09:26:34 +01:00
Thomas Zimmermann
2916059147 drm/aperture: Add infrastructure for aperture ownership
Platform devices might operate on firmware framebuffers, such as VESA
or EFI. Before a native driver for the graphics hardware can take over
the device, it has to remove any platform driver that operates on the
firmware framebuffer. Aperture helpers provide the infrastructure for
native drivers to remove the generic ones.

For now, this only concerns generic fbdev drivers. Code for removing
these is provided by drm_fb_helper_remove_conflicting_framebuffers() et
al. Simply wrap these functions for now. At a later point, code can be
added for generic DRM drivers to acquire firmware framebuffers.

v2:
	* fix docs for drm_aperture_remove_framebuffers()

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210412131043.5787-2-tzimmermann@suse.de
2021-04-14 09:00:04 +02:00
Dave Airlie
1539f71602 drm-misc-next for 5.13:
UAPI Changes:
 
 Cross-subsystem Changes:
 
 Core Changes:
   - mst: Improve topology logging
   - edid: Rework and improvements for displayid
 
 Driver Changes:
   - anx7625: Regulators support
   - bridge: Support for the Chipone ICN6211, Lontium LT8912B
   - lt9611: Fix 4k panels handling
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Merge tag 'drm-misc-next-2021-04-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.13:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - mst: Improve topology logging
  - edid: Rework and improvements for displayid

Driver Changes:
  - anx7625: Regulators support
  - bridge: Support for the Chipone ICN6211, Lontium LT8912B
  - lt9611: Fix 4k panels handling

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210401110552.2b3yetlgsjtlotcn@gilmour
2021-04-07 17:32:12 +10:00
Daniel Vetter
e1a5e6a8c4 drm/doc: Add RFC section
Motivated by the pre-review process for i915 gem/gt features, but
probably useful in general for complex stuff.

v2: Add reminder to not forget userspace projects in the discussion
(Simon, Jason)

v3: Actually put this into a folder, so we have it all (.rst files and
headers for kerneldoc) contained somewhere separate (Jason)

Cc: Simon Ser <contact@emersion.fr>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Dave Airlie <airlied@redhat.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Simon Ser <contact@emersion.fr>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210325225859.1684116-1-daniel.vetter@ffwll.ch
2021-03-26 09:24:39 +01:00
Maxime Ripard
f8bade6c9a
Merge drm/drm-next into drm-misc-next
Noralf needs some patches in 5.12-rc3, and we've been delaying the 5.12
merge due to the swap issue so it looks like a good time.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2021-03-16 09:06:23 +01:00
Dave Airlie
51c3b916a4 drm-misc-next for 5.13:
UAPI Changes:
 
 Cross-subsystem Changes:
 
 Core Changes:
   - %p4cc printk format modifier
   - atomic: introduce drm_crtc_commit_wait, rework atomic plane state
     helpers to take the drm_commit_state structure
   - dma-buf: heaps rework to return a struct dma_buf
   - simple-kms: Add plate state helpers
   - ttm: debugfs support, removal of sysfs
 
 Driver Changes:
   - Convert drivers to shadow plane helpers
   - arc: Move to drm/tiny
   - ast: cursor plane reworks
   - gma500: Remove TTM and medfield support
   - mxsfb: imx8mm support
   - panfrost: MMU IRQ handling rework
   - qxl: rework to better handle resources deallocation, locking
   - sun4i: Add alpha properties for UI and VI layers
   - vc4: RPi4 CEC support
   - vmwgfx: doc cleanup
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Merge tag 'drm-misc-next-2021-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.13:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - %p4cc printk format modifier
  - atomic: introduce drm_crtc_commit_wait, rework atomic plane state
    helpers to take the drm_commit_state structure
  - dma-buf: heaps rework to return a struct dma_buf
  - simple-kms: Add plate state helpers
  - ttm: debugfs support, removal of sysfs

Driver Changes:
  - Convert drivers to shadow plane helpers
  - arc: Move to drm/tiny
  - ast: cursor plane reworks
  - gma500: Remove TTM and medfield support
  - mxsfb: imx8mm support
  - panfrost: MMU IRQ handling rework
  - qxl: rework to better handle resources deallocation, locking
  - sun4i: Add alpha properties for UI and VI layers
  - vc4: RPi4 CEC support
  - vmwgfx: doc cleanup

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210303100600.dgnkadonzuvfnu22@gilmour
2021-03-16 17:08:46 +10:00
Thomas Zimmermann
659ab7a49c drm: Use USB controller's DMA mask when importing dmabufs
USB devices cannot perform DMA and hence have no dma_mask set in their
device structure. Therefore importing dmabuf into a USB-based driver
fails, which breaks joining and mirroring of display in X11.

For USB devices, pick the associated USB controller as attachment device.
This allows the DRM import helpers to perform the DMA setup. If the DMA
controller does not support DMA transfers, we're out of luck and cannot
import. Our current USB-based DRM drivers don't use DMA, so the actual
DMA device is not important.

Tested by joining/mirroring displays of udl and radeon under Gnome/X11.

v8:
	* release dmadev if device initialization fails (Noralf)
	* fix commit description (Noralf)
v7:
	* fix use-before-init bug in gm12u320 (Dan)
v6:
	* implement workaround in DRM drivers and hold reference to
	  DMA device while USB device is in use
	* remove dev_is_usb() (Greg)
	* collapse USB helper into usb_intf_get_dma_device() (Alan)
	* integrate Daniel's TODO statement (Daniel)
	* fix typos (Greg)
v5:
	* provide a helper for USB interfaces (Alan)
	* add FIXME item to documentation and TODO list (Daniel)
v4:
	* implement workaround with USB helper functions (Greg)
	* use struct usb_device->bus->sysdev as DMA device (Takashi)
v3:
	* drop gem_create_object
	* use DMA mask of USB controller, if any (Daniel, Christian, Noralf)
v2:
	* move fix to importer side (Christian, Daniel)
	* update SHMEM and CMA helpers for new PRIME callbacks

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 6eb0233ec2 ("usb: don't inherity DMA properties for USB devices")
Tested-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210303133229.3288-1-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2021-03-11 11:11:33 +01:00
Jianhui Zhao
0f9c429648 docs: gpu: fix typo
Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20210308064250.3681707-1-zhaojh329@gmail.com
2021-03-08 09:09:31 +01:00
Maxime Ripard
c129b49825
drm/todo: Remove the drm_atomic_state todo item
Only planes' prepare_fb and cleanup_fb, and encoders' atomic_check and
atomic_mode_set hooks remain with an object state and not the global
drm_atomic_state.

prepare_fb and cleanup_fb operate by design on a given state and
depending on the calling site can operate on either the old or new
state, so it doesn't really make much sense to convert them.

The encoders' atomic_check and atomic_mode_set operate on the CRTC and
connector state connected to them since encoders don't have a state of
their own. Without those state pointers, we would need to get the CRTC
through the drm_connector_state crtc pointer.

However, in order to get the drm_connector_state pointer, we would need
to get the connector itself and while usually we have a single connector
connected to the encoder, we can't really get it from the encoder at
the moment since it could be behind any number of bridges.

While this could be addressed by (for example) listing all the
connectors and finding the one that has the encoder as its source, it
feels like an unnecessary rework for something that is slowly getting
replaced by bridges.

Since all the users that matter have been converted, let's remove the
TODO item.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219120032.260676-11-maxime@cerno.tech
2021-02-25 08:05:28 +01:00
Linus Torvalds
0e63a5c6ba It has been a relatively quiet cycle in docsland.
- As promised, the minimum Sphinx version to build the docs is now 1.7,
    and we have dropped support for Python 2 entirely.  That allowed the
    removal of a bunch of compatibility code.
 
  - A set of treewide warning fixups from Mauro that I applied after it
    became clear nobody else was going to deal with them.
 
  - The automarkup mechanism can now create cross-references from relative
    paths to RST files.
 
  - More translations, typo fixes, and warning fixes.
 
 No conflicts with any other tree as far as I know.
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Merge tag 'docs-5.12' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It has been a relatively quiet cycle in docsland.

   - As promised, the minimum Sphinx version to build the docs is now
     1.7, and we have dropped support for Python 2 entirely. That
     allowed the removal of a bunch of compatibility code.

   - A set of treewide warning fixups from Mauro that I applied after it
     became clear nobody else was going to deal with them.

   - The automarkup mechanism can now create cross-references from
     relative paths to RST files.

   - More translations, typo fixes, and warning fixes"

* tag 'docs-5.12' of git://git.lwn.net/linux: (75 commits)
  docs: kernel-hacking: be more civil
  docs: Remove the Microsoft rhetoric
  Documentation/admin-guide: kernel-parameters: Update nohlt section
  doc/admin-guide: fix spelling mistake: "perfomance" -> "performance"
  docs: Document cross-referencing using relative path
  docs: Enable usage of relative paths to docs on automarkup
  docs: thermal: fix spelling mistakes
  Documentation: admin-guide: Update kvm/xen config option
  docs: Make syscalls' helpers naming consistent
  coding-style.rst: Avoid comma statements
  Documentation: /proc/loadavg: add 3 more field descriptions
  Documentation/submitting-patches: Add blurb about backtraces in commit messages
  Docs: drop Python 2 support
  Move our minimum Sphinx version to 1.7
  Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams
  scripts/kernel-doc: add internal hyperlink to DOC: sections
  Update Documentation/admin-guide/sysctl/fs.rst
  docs: Update DTB format references
  docs: zh_CN: add iio index.rst translation
  docs/zh_CN: add iio ep93xx_adc.rst translation
  ...
2021-02-22 10:57:46 -08:00
Daniel Vetter
e2e2e008f9 drm/todo: Add entry for moving to dma_resv_lock
Requested by Thomas. I think it justifies a new level, since I tried
to make some forward progress on this last summer, and gave up (for
now). This is very tricky.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210122133624.1751802-1-daniel.vetter@ffwll.ch
(cherry picked from commit 5823cca39d)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2021-02-09 17:16:57 +01:00
Thomas Zimmermann
6dd7b6ce43 drm: Add additional atomic helpers for shadow-buffered planes
Several drivers use GEM buffer objects as shadow buffers for the actual
framebuffer memory. Right now, drivers do these vmap operations in their
commit tail, which is actually not allowed by the locking rules for
the dma-buf reservation lock. The involved BO has to be vmapped in the
plane's prepare_fb callback and vunmapped in cleanup_fb.

This patch introduces atomic helpers for such shadow planes. Plane
functions manage the plane state for shadow planes. The provided
implementations for prepare_fb and cleanup_fb vmap and vunmap all BOs of
struct drm_plane_state.fb. The mappings are afterwards available in the
plane's commit-tail functions.

For now, all rsp drivers use the simple KMS helpers, so we add the plane
callbacks and wrappers for simple KMS. The internal plane functions can
later be exported as needed.

v3:
	* documentation fixes
v2:
	* make duplicate_state interface compatible with
	  struct drm_plane_funcs

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210208115538.6430-4-tzimmermann@suse.de
2021-02-08 13:00:14 +01:00
Daniel Vetter
5823cca39d drm/todo: Add entry for moving to dma_resv_lock
Requested by Thomas. I think it justifies a new level, since I tried
to make some forward progress on this last summer, and gave up (for
now). This is very tricky.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210122133624.1751802-1-daniel.vetter@ffwll.ch
2021-02-03 14:09:44 +01:00
Daniel Vetter
6a56d09bda drm: Update todo.rst
Internship season is starting, let's review this. One thing that's
pending is Maxime's work to roll out drm_atomic_state pointers to all
callbacks, he said he'll remove that entry once it's all done.

v2: Fix typos (Maxime)

Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121112919.1460322-1-daniel.vetter@ffwll.ch
2021-01-21 16:04:18 +01:00
Daniel Vetter
71c46fc33a drm-misc-next for v5.12:
UAPI Changes:
 - Fix fourcc macro for amlogic video fbc.
 
 Cross-subsystem Changes:
 - Export pci_rebar_bytes_to_size.
 - Add a PCI quirk to increase bar0 for RX 5600 XT Pulse to max possible size.
 - Convert devicetree bindings to use the OF graph schema.
 - Update s6e63m0 bindings.
 - Make omapfb2 DSI_CM incompatible with drm/omap2 DSI-CM because of
   module conflicts.
 - Add Zack Rusin as vmwgfx maintainer.
 - Add CONFIG_DMABUF_DEBUG for validating dma-buf users don't loo kat struct page when importing or detaching.
 
 Core Changes:
 - Remove references to drm_device.pdev
 - Fix regression in ttm_bo_move_to_lru_tail().
 - Assorted docbook updates.
 - Do not send dp-mst hotplug events on error when probing.
 - Move some agp macros to agpsupport.c, so it's not always compiled.
 - Move drm_need_swiotlb.h to drm_cache.c
 - Only build drm_memory.o for legacy drivers, and move CONFIG_DRM_VM to legacy.
 - Nuke drm_device.hose
 - Warn when the ttm resource manager is non-empty when disabling.
 - Assorted small fixes.
 
 Driver Changes:
 - Small assorted fixes in radeon, v3d, hisilicon, mipi-dbi, panfrost, hibmc, vc4, amdgpu, vkms, vmwgfx.
 - Move hisilicon to use simple encode.
 - Add writeback connector to vkms.
 - Add support for BT2020 to DE3.
 - Use gem prime mmap helpers in vc4, and move the mmap function upwards.
 - Use managed drm device, and cleanup error paths and display registers in vmwgfx.
 - Use correct bus_format and connector_type for innolux_n116bge.
 - Fix a lot of warnings with W=1 (Lee Jones)
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Merge tag 'drm-misc-next-2021-01-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.12:

UAPI Changes:
- Fix fourcc macro for amlogic video fbc.

Cross-subsystem Changes:
- Export pci_rebar_bytes_to_size.
- Add a PCI quirk to increase bar0 for RX 5600 XT Pulse to max possible size.
- Convert devicetree bindings to use the OF graph schema.
- Update s6e63m0 bindings.
- Make omapfb2 DSI_CM incompatible with drm/omap2 DSI-CM because of
  module conflicts.
- Add Zack Rusin as vmwgfx maintainer.
- Add CONFIG_DMABUF_DEBUG for validating dma-buf users don't loo kat struct page when importing or detaching.

Core Changes:
- Remove references to drm_device.pdev
- Fix regression in ttm_bo_move_to_lru_tail().
- Assorted docbook updates.
- Do not send dp-mst hotplug events on error when probing.
- Move some agp macros to agpsupport.c, so it's not always compiled.
- Move drm_need_swiotlb.h to drm_cache.c
- Only build drm_memory.o for legacy drivers, and move CONFIG_DRM_VM to legacy.
- Nuke drm_device.hose
- Warn when the ttm resource manager is non-empty when disabling.
- Assorted small fixes.

Driver Changes:
- Small assorted fixes in radeon, v3d, hisilicon, mipi-dbi, panfrost, hibmc, vc4, amdgpu, vkms, vmwgfx.
- Move hisilicon to use simple encode.
- Add writeback connector to vkms.
- Add support for BT2020 to DE3.
- Use gem prime mmap helpers in vc4, and move the mmap function upwards.
- Use managed drm device, and cleanup error paths and display registers in vmwgfx.
- Use correct bus_format and connector_type for innolux_n116bge.
- Fix a lot of warnings with W=1 (Lee Jones)

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5c3ad775-48ce-33ee-e4c6-a5e1e540f845@linux.intel.com
2021-01-20 10:29:40 +01:00
Dave Airlie
fb5cfcaa2e Merge tag 'drm-intel-gt-next-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Deprecate I915_PMU_LAST and optimize state tracking (Tvrtko)

  Avoid relying on last item ABI marker in i915_drm.h, add a
  comment to mark as deprecated.

Cross-subsystem Changes:

Core Changes:

Driver Changes:

- Restore clear residuals security mitigations for Ivybridge and
  Baytrail (Chris)
- Close #1858: Allow sysadmin to choose applied GPU security mitigations
  through i915.mitigations=... similar to CPU (Chris)
- Fix for #2024: GPU hangs on HSW GT1 (Chris)
- Fix for #2707: Driver hang when editing UVs in Blender (Chris, Ville)
- Fix for #2797: False positive GuC loading error message (Chris)
- Fix for #2859: Missing GuC firmware for older Cometlakes (Chris)
- Lessen probability of GPU hang due to DMAR faults [reason 7,
  next page table ptr is invalid] on Tigerlake (Chris)
- Fix REVID macros for TGL to fetch correct stepping (Aditya)
- Limit frequency drop to RPe on parking (Chris, Edward)
- Limit W/A 1406941453 to TGL, RKL and DG1 (Swathi)
- Make W/A 22010271021 permanent on DG1 (Lucas)
- Implement W/A 16011163337 to prevent a HS/DS hang on DG1 (Swathi)
- Only disable preemption on gen8 render engines (Chris)
- Disable arbitration around Braswell's PDP updates (Chris)
- Disable arbitration on no-preempt requests (Chris)
- Check for arbitration after writing start seqno before busywaiting (Chris)
- Retain default context state across shrinking (Venkata, CQ)
- Fix mismatch between misplaced vma check and vma insert for 32-bit
  addressing userspaces (Chris, CQ)
- Propagate error for vmap() failure instead kernel NULL deref (Chris)
- Propagate error from cancelled submit due to context closure
  immediately (Chris)
- Fix RCU race on HWSP tracking per request (Chris)
- Clear CMD parser shadow and GPU reloc batches (Matt A)

- Populate logical context during first pin (Maarten)
- Optimistically prune dma-resv from the shrinker (Chris)
- Fix for virtual engine ownership race (Chris)
- Remove timeslice suppression to restore fairness for virtual engines (Chris)
- Rearrange IVB/HSW workarounds properly between GT and engine (Chris)
- Taint the reset mutex with the shrinker (Chris)
- Replace direct submit with direct call to tasklet (Chris)
- Multiple corrections to virtual engine dequeue and breadcrumbs code (Chris)
- Avoid wakeref from potentially hard IRQ context in PMU (Tvrtko)
- Use raw clock for RC6 time estimation in PMU (Tvrtko)
- Differentiate OOM failures from invalid map types (Chris)
- Fix Gen9 to have 64 MOCS entries similar to Gen11 (Chris)
- Ignore repeated attempts to suspend request flow across reset (Chris)
- Remove livelock from "do_idle_maps" VT-d W/A (Chris)
- Cancel the preemption timeout early in case engine reset fails (Chris)
- Code flow optimization in the scheduling code (Chris)
- Clear the execlists timers upon reset (Chris)
- Drain the breadcrumbs just once (Chris, Matt A)
- Track the overall GT awake/busy time (Chris)
- Tweak submission tasklet flushing to avoid starvation (Chris)
- Track timelines created using the HWSP to restore on resume (Chris)
- Use cmpxchg64 for 32b compatilibity for active tracking (Chris)
- Prefer recycling an idle GGTT fence to avoid GPU wait (Chris)

- Restructure GT code organization for clearer split between GuC
  and execlists (Chris, Daniele, John, Matt A)
- Remove GuC code that will remain unused by new interfaces (Matt B)
- Restructure the CS timestamp clocks code to local to GT (Chris)
- Fix error return paths in perf code (Zhang)
- Replace idr_init() by idr_init_base() in perf (Deepak)
- Fix shmem_pin_map error path (Colin)
- Drop redundant free_work worker for GEM contexts (Chris, Mika)
- Increase readability and understandability of intel_workarounds.c (Lucas)
- Defer enabling the breadcrumb interrupt to after submission (Chris)
- Deal with buddy alloc block sizes beyond 4G (Venkata, Chris)
- Encode fence specific waitqueue behaviour into the wait.flags (Chris)
- Don't cancel the breadcrumb interrupt shadow too early (Chris)
- Cancel submitted requests upon context reset (Chris)
- Use correct locks in GuC code (Tvrtko)
- Prevent use of engine->wa_ctx after error (Chris, Matt R)

- Fix build warning on 32-bit (Arnd)
- Avoid memory leak if platform would have more than 16 W/A (Tvrtko)
- Avoid unnecessary #if CONFIG_PM in PMU code (Chris, Tvrtko)
- Improve debugging output (Chris, Tvrtko, Matt R)
- Make file local variables static (Jani)
- Avoid uint*_t types in i915 (Jani)
- Selftest improvements (Chris, Matt A, Dan)
- Documentation fixes (Chris, Jose)

Signed-off-by: Dave Airlie <airlied@redhat.com>

# Conflicts:
#	drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
#	drivers/gpu/drm/i915/gt/intel_breadcrumbs_types.h
#	drivers/gpu/drm/i915/gt/intel_lrc.c
#	drivers/gpu/drm/i915/gvt/mmio_context.h
#	drivers/gpu/drm/i915/i915_drv.h
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114152232.GA21588@jlahtine-mobl.ger.corp.intel.com
2021-01-15 15:03:36 +10:00
Sumera Priyadarsini
af20724c68 drm/vkms: Add information about module options
Update vkms documentation to contain usage of `modinfo`
command and steps to load vkms with module options enabled.

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Reviewed-by: Melissa Wen <melissa.srw@gmail.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4fbc6459377c1dcbe8e6648718453d5693f6451c.1610391685.git.sylphrenadin@gmail.com
2021-01-12 17:16:25 -03:00
Joe Perches
05a5f51ca5 Documentation: Replace lkml.org links with lore
Replace the lkml.org links with lore to better use a single source
that's more likely to stay available long-term.

Done by bash script:

cvt_lkml_to_lore ()
{
    tmpfile=$(mktemp ./.cvt_links.XXXXXXX)

    header=$(echo $1 | sed 's@/lkml/@/lkml/headers/@')

    wget -qO - $header > $tmpfile
    if [[ $? == 0 ]] ; then
	link=$(grep -i '^Message-Id:' $tmpfile | head -1 | \
		   sed -r -e 's/^\s*Message-Id:\s*<\s*//' -e  's/\s*>\s*$//' -e 's@^@https://lore.kernel.org/r/@')
	#    echo "testlink: $link"
	if [ -n "$link" ] ; then
	    wget -qO - $link > /dev/null
	    if [[ $? == 0 ]] ; then
		echo $link
	    fi
	fi
    fi

    rm -f $tmpfile
}

git grep -P -o "\bhttps?://(?:www.)?lkml.org/lkml[\/\w]+" $@ |
    while read line ; do
	echo $line
	file=$(echo $line | cut -f1 -d':')
	link=$(echo $line | cut -f2- -d':')
	newlink=$(cvt_lkml_to_lore $link)
	if [[ -n "$newlink" ]] ; then
	    sed -i -e "s#\b$link\b#$newlink#" $file
	fi
    done

Link: https://lore.kernel.org/patchwork/patch/1265849/#1462688
Signed-off-by: Joe Perches <joe@perches.com>
Link: https://lore.kernel.org/r/77cdb7f32cfb087955bfc3600b86c40bed5d4104.camel@perches.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-11 12:47:38 -07:00
Simon Ser
cf9a4be47f
drm/doc: render drm.h uapi docs
It doesn't seem like drm.h docs are included anywhere. Render them next
to drm_mode.h, under the "Userspace API Structures" section.

This also allows references to e.g. DRM_CAP_* to be properly linkified
elsewhere in our docs.

Signed-off-by: Simon Ser <contact@emersion.fr>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201222133524.160842-6-contact@emersion.fr
2021-01-05 14:22:26 +01:00
Simon Ser
77a71abbdd
drm/doc: introduce new section for standard plane properties
Introduce a new "Standard Plane Properties" section for properties
defined in drm_plane.c. Move the mis-placed IN_FORMATS docs there.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201217113220.102271-3-contact@emersion.fr
2020-12-17 16:56:40 +01:00
Simon Ser
46f9be4c8a
drm/doc: the KMS properties section is for user-space devs
State that the "KMS Properties" section is mainly for user-space
developers.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201217113220.102271-2-contact@emersion.fr
2020-12-17 16:56:12 +01:00
Simon Ser
2189100c94
drm/doc: move color management functions under CRTC section
Move drm_color_mgmt function reference from the KMS properties
section to the CRTC abstraction section. This makes the KMS
properties section more readable for user-space developers.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201216202222.48146-5-contact@emersion.fr
2020-12-17 16:55:28 +01:00
Simon Ser
31c558f474
drm/doc: move damage tracking functions to new section
Move drm_damage_helper function reference from the KMS properties
section to the plane abstraction section. This makes the KMS
properties section more readable for user-space developers.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201216202222.48146-4-contact@emersion.fr
2020-12-17 16:54:56 +01:00
Simon Ser
9d8f78f6ae
drm/doc: move composition function docs to new section
Move drm_blend.c function reference from the KMS properties section to
the plane abstraction section. This makes the KMS properties section
more readable for user-space developers.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201216202222.48146-3-contact@emersion.fr
2020-12-17 16:54:26 +01:00
Simon Ser
e07f001ccc
drm/doc: rename FB_DAMAGE_CLIPS section
Make it more human-readable.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201216202222.48146-2-contact@emersion.fr
2020-12-17 16:53:36 +01:00
José Roberto de Souza
3b7bc18b4e doc: Fix build of documentation after i915 file rename
Commit 70a2b431c3 ("drm/i915/gt: Rename lrc.c to
execlists_submission.c") renamed intel_lrc.c to
intel_execlists_submission.c but forgot to update i915.rst.

Fixes: 70a2b431c3 ("drm/i915/gt: Rename lrc.c to execlists_submission.c")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201214185440.243537-1-jose.souza@intel.com
2020-12-15 06:22:31 -08:00
Sumera Priyadarsini
63ade10434 drm/vkms: Add setup and testing information
Update the vkms documentation to contain steps to:

 - setup the vkms driver
 - run tests using igt

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201209190453.c6kp5winikr55n3i@adolin
2020-12-10 07:58:11 -03:00
Daniel Vetter
fa388231fe drm/docs: Fix todo.rst
I didnt' format the thing correctly :-(

Fixes: 39aead8373 ("fbcon: Disable accelerated scrolling")
Reviewed-by: Simon Ser <contact@emersion.fr>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201118073637.597206-1-daniel.vetter@ffwll.ch
2020-11-18 11:51:58 +01:00
Daniel Vetter
39aead8373 fbcon: Disable accelerated scrolling
So ever since syzbot discovered fbcon, we have solid proof that it's
full of bugs. And often the solution is to just delete code and remove
features, e.g.  50145474f6 ("fbcon: remove soft scrollback code").

Now the problem is that most modern-ish drivers really only treat
fbcon as an dumb kernel console until userspace takes over, and Oops
printer for some emergencies. Looking at drm drivers and the basic
vesa/efi fbdev drivers shows that only 3 drivers support any kind of
acceleration:

- nouveau, seems to be enabled by default
- omapdrm, when a DMM remapper exists using remapper rewriting for
  y/xpanning
- gma500, but that is getting deleted now for the GTT remapper trick,
  and the accelerated copyarea never set the FBINFO_HWACCEL_COPYAREA
  flag, so unused (and could be deleted already I think).

No other driver supportes accelerated fbcon. And fbcon is the only
user of this accel code (it's not exposed as uapi through ioctls),
which means we could garbage collect fairly enormous amounts of code
if we kill this.

Plus because syzbot only runs on virtual hardware, and none of the
drivers for that have acceleration, we'd remove a huge gap in testing.
And there's no other even remotely comprehensive testing aside from
syzbot.

This patch here just disables the acceleration code by always
redrawing when scrolling. The plan is that once this has been merged
for well over a year in released kernels, we can start to go around
and delete a lot of code.

v2:
- Drop a few more unused local variables, somehow I missed the
compiler warnings (Sam)
- Fix typo in comment (Jiri)
- add a todo entry for the cleanup (Thomas)

v3: Remove more unused variables (0day)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: nouveau@lists.freedesktop.org
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Peilin Ye <yepeilin.cs@gmail.com>
Cc: George Kennedy <george.kennedy@oracle.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029132229.4068359-1-daniel.vetter@ffwll.ch
2020-11-17 11:00:29 +01:00