CVS log for src/sys/external/bsd/drm2/dist/drm/drm_fb_helper.c

Up to [cvs.NetBSD.org] / src / sys / external / bsd / drm2 / dist / drm

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

drm: Avoid null pointer deref for drivers with atomic modeset.

drm: Work around client modeset mutex for entering ddb.

Linux introduced a wait lock (`mutex') around access to the drm
client modesets, even for drm_fb_helper_debug_enter/leave -- which
happen when we're crashing and can't wait for the scheduler to let
whatever thread might hold a mutex continue to run.

This really shouldn't be a wait lock, but disentangling the lock
order and sleeping allocations is difficult, so let's just hope that
it's safe to access unlocked in ddb for now.

Narrow scope of exclusions in drm_fb_helper.c; reduce diffs.

Restore drm_fb_helper_debug_{enter,leave}_fb

the non-fbinfo versions of the same function now that I see why
they exist, and that they are not a mangled diff


Author: Maya Rashish <maya@NetBSD.org>

Improve ifdef'ing out fb_info stuff. Undo unintended local diff.


Author: Maya Rashish <maya@NetBSD.org>

Cleanup ifdef goo that got mangled.

Endifs without matching ifdefs and so on.


Author: Maya Rashish <maya@NetBSD.org>

Ifdef out linux framebuffer stuff in drm_fb_helper.

Initialize kernel_fb_helper_lock in drm module load.

Fix up #ifdefs.

Merge linux-drm-v5-6-rc3

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

Mostly merge changes from HEAD upto 20200411

Merge changes from current as of 20200406

Sync with head.

Reduce diffs by side-loading some header files like Linux.

From riastradh

Revert cosmetic changes.

Stub out console_lock/unlock and drm_fb_helper_set_suspend.

Reduce some more diffs.

Pull up the following revision, requested by msaitoh in ticket #1436:

	external/bsd/drm2/dist/drm/drm_fb_helper.c      1.13 via patch

Avoid null pointer dereference.

Pull up following revision(s) (requested by msaitoh in ticket #408):

	sys/external/bsd/drm2/dist/drm/drm_fb_helper.c: revision 1.13

Avoid null pointer dereference found by kUBSan with "member access within
null pointer of type 'struct drm_fb_helper_crtc'".

 Avoid null pointer dereference found by kUBSan with "member access within
null pointer of type 'struct drm_fb_helper_crtc'".

Sync with HEAD

Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)

Fix vestigial call to drm_fb_helper_set_config.

Remove temporary drm_fb_helper_set_config stub from old code.

Fix bad merge and ifdef out linux fb stuff.

merge linux-drm-v4-4-143

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.

update from HEAD

Sync with HEAD (as of 26th Dec)

Support command-line modes by picking up connector modes from the device
properties. The connector name is the key name in the device properties
dictionary.

Rebase to HEAD as of a few days ago.

Rebase.

file drm_fb_helper.c was added on branch tls-maxphys on 2014-08-20 00:04:08 +0000

Expose drm fb helpers for ddb enter/exit.

Make it build and boot on my test machines.

Screen blanks on boot on the Ivy Bridge system with

   DRM error in cpt_serr_int_handler: PCH transcoder A FIFO underrun

But after that everything is OK.  Appears to be an upstream problem.
To investigate...

I think there's a cache flushing issue somewhere -- there are little
display artefacts on my T60.

fix merge conflicts

Import drm from Linux 3.15 (commitid 1860e379875dfe7271c649058aeddffe5afd9d0d).

   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.

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")

sync with head

file drm_fb_helper.c was added on branch yamt-pagecache on 2014-05-22 11:40:52 +0000

Fix hot-plug with small patch from upstream before a full update.

Fix unused variable warnings in drm2.

Merge riastradh-drm2 to HEAD.

Tweak drm_fb_helper_single_fb_probe so we needn't reconnect the screen.

Round of hacking on i915 framebuffers.

sync with head

sync with HEAD and actually get the drm2 import

file drm_fb_helper.c was added on branch rmind-smpnet on 2013-08-28 23:59:32 +0000

file drm_fb_helper.c was added on branch riastradh-drm2 on 2013-07-23 21:28:21 +0000

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

Initial revision