dri-devel June 2020

dri-devel@lists.freedesktop.org

315 participants
731 discussions

[PATCH AUTOSEL 5.7 03/28] drm/amd/display: Use kfree() to free rgb_user in calculate_user_regamma_ramp()
by Sasha Levin 23 Jun '20

23 Jun '20

From: Denis Efremov <efremov(a)linux.com> [ Upstream commit 43a562774fceba867e8eebba977d7d42f8a2eac7 ] Use kfree() instead of kvfree() to free rgb_user in calculate_user_regamma_ramp() because the memory is allocated with kcalloc(). Signed-off-by: Denis Efremov <efremov(a)linux.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c index cac09d500fda9..2c2caa7d335c8 100644 --- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c +++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c @@ -1777,7 +1777,7 @@ bool calculate_user_regamma_ramp(struct dc_transfer_func *output_tf, kfree(rgb_regamma); rgb_regamma_alloc_fail: - kvfree(rgb_user); + kfree(rgb_user); rgb_user_alloc_fail: return ret; } -- 2.25.1

1 0

[RFC v5 00/10] drm/nouveau: Introduce CRC support for gf119+
by Lyude Paul 23 Jun '20

23 Jun '20

Nvidia released some documentation on how CRC support works on their GPUs, hooray! So: this patch series implements said CRC support in nouveau, along with adding some special debugfs interfaces for some relevant igt-gpu-tools tests (already on the ML). First - we add some new functionality to kthread_work in the kernel, and then use this to add a new feature to DRM that Ville Syrjälä came up with: vblank workers. Basically, this is just a generic DRM interface that allows for scheduling high-priority workers that start on a given vblank interrupt. Note that while we're currently only using this in nouveau, Intel has plans to use this for i915 as well (hence why they came up with it!). And finally: in order to implement the last feature, we expose some new functions in the kernel's kthread_worker infrastructure so that we can de-complicate our implementation of this. Anyway-welcome to the future! :) Major changes since v4: * Remove the interfaces we tried adding to kthread_worker and use a wait queue + seqcount in order to implement flushing vblank workers. * Rebase Major changes since v3: * Style fixes on nouveau patches from checkpatch, no functional changes * Don't integrate so tightly with kthread_work (and use our own lock), instead introduce some new functions for doing simple async flushing and cancelling. I think this interface looks a lot more acceptable then what I was previously trying. * Apply some changes requested by danvet Major changes since v2: * Use kthread_worker instead of kthreadd for vblank workers * Don't check debugfs return values Lyude Paul (10): drm/vblank: Register drmm cleanup action once per drm_vblank_crtc drm/vblank: Add vblank works drm/nouveau/kms/nv50-: Unroll error cleanup in nv50_head_create() drm/nouveau/kms/nv140-: Don't modify depth in state during atomic commit drm/nouveau/kms/nv50-: Fix disabling dithering drm/nouveau/kms/nv50-: s/harm/armh/g drm/nouveau/kms/nv140-: Track wndw mappings in nv50_head_atom drm/nouveau/kms/nv50-: Expose nv50_outp_atom in disp.h drm/nouveau/kms/nv50-: Move hard-coded object handles into header drm/nouveau/kms/nvd9-: Add CRC support drivers/gpu/drm/drm_vblank.c | 287 +++++++- drivers/gpu/drm/nouveau/dispnv04/crtc.c | 25 +- drivers/gpu/drm/nouveau/dispnv50/Kbuild | 4 + drivers/gpu/drm/nouveau/dispnv50/atom.h | 21 + drivers/gpu/drm/nouveau/dispnv50/core.h | 4 + drivers/gpu/drm/nouveau/dispnv50/core907d.c | 3 + drivers/gpu/drm/nouveau/dispnv50/core917d.c | 3 + drivers/gpu/drm/nouveau/dispnv50/corec37d.c | 3 + drivers/gpu/drm/nouveau/dispnv50/corec57d.c | 3 + drivers/gpu/drm/nouveau/dispnv50/crc.c | 714 ++++++++++++++++++++ drivers/gpu/drm/nouveau/dispnv50/crc.h | 125 ++++ drivers/gpu/drm/nouveau/dispnv50/crc907d.c | 139 ++++ drivers/gpu/drm/nouveau/dispnv50/crcc37d.c | 153 +++++ drivers/gpu/drm/nouveau/dispnv50/disp.c | 58 +- drivers/gpu/drm/nouveau/dispnv50/disp.h | 24 + drivers/gpu/drm/nouveau/dispnv50/handles.h | 16 + drivers/gpu/drm/nouveau/dispnv50/head.c | 134 +++- drivers/gpu/drm/nouveau/dispnv50/head.h | 12 +- drivers/gpu/drm/nouveau/dispnv50/head907d.c | 14 +- drivers/gpu/drm/nouveau/dispnv50/headc37d.c | 27 +- drivers/gpu/drm/nouveau/dispnv50/headc57d.c | 20 +- drivers/gpu/drm/nouveau/dispnv50/wndw.c | 15 +- drivers/gpu/drm/nouveau/nouveau_display.c | 60 +- include/drm/drm_vblank.h | 49 ++ 24 files changed, 1775 insertions(+), 138 deletions(-) create mode 100644 drivers/gpu/drm/nouveau/dispnv50/crc.c create mode 100644 drivers/gpu/drm/nouveau/dispnv50/crc.h create mode 100644 drivers/gpu/drm/nouveau/dispnv50/crc907d.c create mode 100644 drivers/gpu/drm/nouveau/dispnv50/crcc37d.c create mode 100644 drivers/gpu/drm/nouveau/dispnv50/handles.h -- 2.26.2

2 13

[PATCH] drm/radeon: fix fb_div check in ni_init_smc_spll_table()
by Denis Efremov 23 Jun '20

23 Jun '20

clk_s is checked twice in a row in ni_init_smc_spll_table(). fb_div should be checked instead. Fixes: 69e0b57a91ad ("drm/radeon/kms: add dpm support for cayman (v5)") Cc: stable(a)vger.kernel.org Signed-off-by: Denis Efremov <efremov(a)linux.com> --- drivers/gpu/drm/radeon/ni_dpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c index b57c37ddd164..c7fbb7932f37 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.c +++ b/drivers/gpu/drm/radeon/ni_dpm.c @@ -2127,7 +2127,7 @@ static int ni_init_smc_spll_table(struct radeon_device *rdev) if (clk_s & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_SHIFT)) ret = -EINVAL; - if (clk_s & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_SHIFT)) + if (fb_div & ~(SMC_NISLANDS_SPLL_DIV_TABLE_FBDIV_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_FBDIV_SHIFT)) ret = -EINVAL; if (clk_v & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKV_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKV_SHIFT)) -- 2.26.2

2 1

[PATCH] drm/gma500: Fix direction check in psb_accel_2d_copy()
by Denis Efremov 23 Jun '20

23 Jun '20

psb_accel_2d_copy() checks direction PSB_2D_COPYORDER_BR2TL twice. Based on psb_accel_2d_copy_direction() results, PSB_2D_COPYORDER_TL2BR should be checked instead in the second direction check. Fixes: 4d8d096e9ae8 ("gma500: introduce the framebuffer support code") Cc: stable(a)vger.kernel.org Signed-off-by: Denis Efremov <efremov(a)linux.com> --- drivers/gpu/drm/gma500/accel_2d.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/gma500/accel_2d.c b/drivers/gpu/drm/gma500/accel_2d.c index adc0507545bf..8dc86aac54d2 100644 --- a/drivers/gpu/drm/gma500/accel_2d.c +++ b/drivers/gpu/drm/gma500/accel_2d.c @@ -179,8 +179,8 @@ static int psb_accel_2d_copy(struct drm_psb_private *dev_priv, src_x += size_x - 1; dst_x += size_x - 1; } - if (direction == PSB_2D_COPYORDER_BR2TL || - direction == PSB_2D_COPYORDER_BL2TR) { + if (direction == PSB_2D_COPYORDER_BL2TR || + direction == PSB_2D_COPYORDER_TL2BR) { src_y += size_y - 1; dst_y += size_y - 1; } -- 2.26.2

2 1

[PATCH v2 0/9] Convert the remaining text files to ReST and add SPDX for GFDL
by Mauro Carvalho Chehab 23 Jun '20

23 Jun '20

The main goal of this series is to finish the ReST conversion. After this series, we have just those files still in plain old format: - Documentation/RCU/RTFP.txt - Documentation/atomic_bitops.txt - Documentation/memory-barriers.txt - Documentation/atomic_t.txt - Documentation/filesystems/dax.txt - Documentation/filesystems/path-lookup.txt - Documentation/virt/kvm/devices/README PS.: I'm using a script to remove false-positives and ignore non-converted translated files. It is worth to mention that this fseries contain licenses for the two GFDL licenses used within the Kernel: GFDL-1.1+ and GFDL-1.2. Those licenses are the result of long discussions with the SPDX legal team, and are part of this commit, to be added for the future SPDX 3.10 version: https://github.com/spdx/license-list-XML/pull/1048/commits/f695d2ac65230d0f… Mauro Carvalho Chehab (9): docs: dt: convert booting-without-of.txt to ReST format LICENSES: add GFDL licenses media: docs: use SPDX GFDL-1.1-or-later-no-invariants docs: trace: ring-buffer-design.txt: convert to ReST format docs: move nommu-mmap.txt to admin-guide and rename to ReST docs: move mailbox.txt to driver-api and rename it docs: move other kAPI documents to core-api docs: Add remaining Documentation/*.txt at staging/index.rst docs: staging: use small font for literal includes Documentation/admin-guide/mm/index.rst | 1 + .../mm/nommu-mmap.rst} | 0 Documentation/admin-guide/sysctl/vm.rst | 2 +- Documentation/arm/booting.rst | 2 +- .../bus-virt-phys-mapping.rst} | 0 Documentation/core-api/index.rst | 3 + .../this_cpu_ops.rst} | 0 .../unaligned-memory-access.rst | 0 ...-without-of.txt => booting-without-of.rst} | 298 ++++--- Documentation/devicetree/index.rst | 1 + Documentation/driver-api/index.rst | 1 + .../{mailbox.txt => driver-api/mailbox.rst} | 0 Documentation/gpu/drm-mm.rst | 2 +- Documentation/staging/index.rst | 24 + Documentation/trace/index.rst | 1 + ...ffer-design.txt => ring-buffer-design.rst} | 778 +++++++++--------- Documentation/translations/zh_CN/arm/Booting | 2 +- .../userspace-api/media/cec/cec-api.rst | 9 +- .../media/cec/cec-func-close.rst | 9 +- .../media/cec/cec-func-ioctl.rst | 9 +- .../userspace-api/media/cec/cec-func-open.rst | 9 +- .../userspace-api/media/cec/cec-func-poll.rst | 9 +- .../userspace-api/media/cec/cec-funcs.rst | 9 +- .../userspace-api/media/cec/cec-header.rst | 9 +- .../userspace-api/media/cec/cec-intro.rst | 9 +- .../media/cec/cec-ioc-adap-g-caps.rst | 9 +- .../media/cec/cec-ioc-adap-g-log-addrs.rst | 9 +- .../media/cec/cec-ioc-adap-g-phys-addr.rst | 9 +- .../media/cec/cec-ioc-dqevent.rst | 9 +- .../media/cec/cec-ioc-g-mode.rst | 9 +- .../media/cec/cec-ioc-receive.rst | 9 +- .../media/cec/cec-pin-error-inj.rst | 9 +- .../dvb/audio-bilingual-channel-select.rst | 9 +- .../media/dvb/audio-channel-select.rst | 9 +- .../media/dvb/audio-clear-buffer.rst | 9 +- .../media/dvb/audio-continue.rst | 9 +- .../userspace-api/media/dvb/audio-fclose.rst | 9 +- .../userspace-api/media/dvb/audio-fopen.rst | 9 +- .../userspace-api/media/dvb/audio-fwrite.rst | 9 +- .../media/dvb/audio-get-capabilities.rst | 9 +- .../media/dvb/audio-get-status.rst | 9 +- .../userspace-api/media/dvb/audio-pause.rst | 9 +- .../userspace-api/media/dvb/audio-play.rst | 9 +- .../media/dvb/audio-select-source.rst | 9 +- .../media/dvb/audio-set-av-sync.rst | 9 +- .../media/dvb/audio-set-bypass-mode.rst | 9 +- .../userspace-api/media/dvb/audio-set-id.rst | 9 +- .../media/dvb/audio-set-mixer.rst | 9 +- .../media/dvb/audio-set-mute.rst | 9 +- .../media/dvb/audio-set-streamtype.rst | 9 +- .../userspace-api/media/dvb/audio-stop.rst | 9 +- .../userspace-api/media/dvb/audio.rst | 9 +- .../media/dvb/audio_data_types.rst | 9 +- .../media/dvb/audio_function_calls.rst | 9 +- .../userspace-api/media/dvb/ca-fclose.rst | 9 +- .../userspace-api/media/dvb/ca-fopen.rst | 9 +- .../userspace-api/media/dvb/ca-get-cap.rst | 9 +- .../media/dvb/ca-get-descr-info.rst | 9 +- .../userspace-api/media/dvb/ca-get-msg.rst | 9 +- .../media/dvb/ca-get-slot-info.rst | 9 +- .../userspace-api/media/dvb/ca-reset.rst | 9 +- .../userspace-api/media/dvb/ca-send-msg.rst | 9 +- .../userspace-api/media/dvb/ca-set-descr.rst | 9 +- Documentation/userspace-api/media/dvb/ca.rst | 9 +- .../userspace-api/media/dvb/ca_data_types.rst | 9 +- .../media/dvb/ca_function_calls.rst | 9 +- .../userspace-api/media/dvb/demux.rst | 9 +- .../userspace-api/media/dvb/dmx-add-pid.rst | 9 +- .../userspace-api/media/dvb/dmx-expbuf.rst | 9 +- .../userspace-api/media/dvb/dmx-fclose.rst | 9 +- .../userspace-api/media/dvb/dmx-fopen.rst | 9 +- .../userspace-api/media/dvb/dmx-fread.rst | 9 +- .../userspace-api/media/dvb/dmx-fwrite.rst | 9 +- .../media/dvb/dmx-get-pes-pids.rst | 9 +- .../userspace-api/media/dvb/dmx-get-stc.rst | 9 +- .../userspace-api/media/dvb/dmx-mmap.rst | 9 +- .../userspace-api/media/dvb/dmx-munmap.rst | 9 +- .../userspace-api/media/dvb/dmx-qbuf.rst | 9 +- .../userspace-api/media/dvb/dmx-querybuf.rst | 9 +- .../media/dvb/dmx-remove-pid.rst | 9 +- .../userspace-api/media/dvb/dmx-reqbufs.rst | 9 +- .../media/dvb/dmx-set-buffer-size.rst | 9 +- .../media/dvb/dmx-set-filter.rst | 9 +- .../media/dvb/dmx-set-pes-filter.rst | 9 +- .../userspace-api/media/dvb/dmx-start.rst | 9 +- .../userspace-api/media/dvb/dmx-stop.rst | 9 +- .../userspace-api/media/dvb/dmx_fcalls.rst | 9 +- .../userspace-api/media/dvb/dmx_types.rst | 9 +- .../media/dvb/dvb-fe-read-status.rst | 9 +- .../media/dvb/dvb-frontend-event.rst | 9 +- .../media/dvb/dvb-frontend-parameters.rst | 9 +- .../userspace-api/media/dvb/dvbapi.rst | 9 +- .../userspace-api/media/dvb/dvbproperty.rst | 9 +- .../userspace-api/media/dvb/examples.rst | 9 +- .../media/dvb/fe-bandwidth-t.rst | 9 +- .../media/dvb/fe-diseqc-recv-slave-reply.rst | 9 +- .../media/dvb/fe-diseqc-reset-overload.rst | 9 +- .../media/dvb/fe-diseqc-send-burst.rst | 9 +- .../media/dvb/fe-diseqc-send-master-cmd.rst | 9 +- .../dvb/fe-dishnetwork-send-legacy-cmd.rst | 9 +- .../media/dvb/fe-enable-high-lnb-voltage.rst | 9 +- .../userspace-api/media/dvb/fe-get-event.rst | 9 +- .../media/dvb/fe-get-frontend.rst | 9 +- .../userspace-api/media/dvb/fe-get-info.rst | 9 +- .../media/dvb/fe-get-property.rst | 9 +- .../userspace-api/media/dvb/fe-read-ber.rst | 9 +- .../media/dvb/fe-read-signal-strength.rst | 9 +- .../userspace-api/media/dvb/fe-read-snr.rst | 9 +- .../media/dvb/fe-read-status.rst | 9 +- .../media/dvb/fe-read-uncorrected-blocks.rst | 9 +- .../media/dvb/fe-set-frontend-tune-mode.rst | 9 +- .../media/dvb/fe-set-frontend.rst | 9 +- .../userspace-api/media/dvb/fe-set-tone.rst | 9 +- .../media/dvb/fe-set-voltage.rst | 9 +- .../userspace-api/media/dvb/fe-type-t.rst | 9 +- .../media/dvb/fe_property_parameters.rst | 9 +- .../media/dvb/frontend-header.rst | 9 +- .../dvb/frontend-property-cable-systems.rst | 9 +- .../frontend-property-satellite-systems.rst | 9 +- .../frontend-property-terrestrial-systems.rst | 9 +- .../media/dvb/frontend-stat-properties.rst | 9 +- .../userspace-api/media/dvb/frontend.rst | 9 +- .../media/dvb/frontend_f_close.rst | 9 +- .../media/dvb/frontend_f_open.rst | 9 +- .../media/dvb/frontend_fcalls.rst | 9 +- .../media/dvb/frontend_legacy_api.rst | 9 +- .../media/dvb/frontend_legacy_dvbv3_api.rst | 9 +- .../userspace-api/media/dvb/headers.rst | 9 +- .../userspace-api/media/dvb/intro.rst | 9 +- .../media/dvb/legacy_dvb_apis.rst | 9 +- .../userspace-api/media/dvb/net-add-if.rst | 9 +- .../userspace-api/media/dvb/net-get-if.rst | 9 +- .../userspace-api/media/dvb/net-remove-if.rst | 9 +- .../userspace-api/media/dvb/net-types.rst | 9 +- Documentation/userspace-api/media/dvb/net.rst | 9 +- .../media/dvb/query-dvb-frontend-info.rst | 9 +- .../media/dvb/video-clear-buffer.rst | 9 +- .../userspace-api/media/dvb/video-command.rst | 9 +- .../media/dvb/video-continue.rst | 9 +- .../media/dvb/video-fast-forward.rst | 9 +- .../userspace-api/media/dvb/video-fclose.rst | 9 +- .../userspace-api/media/dvb/video-fopen.rst | 9 +- .../userspace-api/media/dvb/video-freeze.rst | 9 +- .../userspace-api/media/dvb/video-fwrite.rst | 9 +- .../media/dvb/video-get-capabilities.rst | 9 +- .../media/dvb/video-get-event.rst | 9 +- .../media/dvb/video-get-frame-count.rst | 9 +- .../userspace-api/media/dvb/video-get-pts.rst | 9 +- .../media/dvb/video-get-size.rst | 9 +- .../media/dvb/video-get-status.rst | 9 +- .../userspace-api/media/dvb/video-play.rst | 9 +- .../media/dvb/video-select-source.rst | 9 +- .../media/dvb/video-set-blank.rst | 9 +- .../media/dvb/video-set-display-format.rst | 9 +- .../media/dvb/video-set-format.rst | 9 +- .../media/dvb/video-set-streamtype.rst | 9 +- .../media/dvb/video-slowmotion.rst | 9 +- .../media/dvb/video-stillpicture.rst | 9 +- .../userspace-api/media/dvb/video-stop.rst | 9 +- .../media/dvb/video-try-command.rst | 9 +- .../userspace-api/media/dvb/video.rst | 9 +- .../media/dvb/video_function_calls.rst | 9 +- .../userspace-api/media/dvb/video_types.rst | 9 +- .../userspace-api/media/fdl-appendix.rst | 9 +- .../userspace-api/media/gen-errors.rst | 9 +- .../media/mediactl/media-controller-intro.rst | 9 +- .../media/mediactl/media-controller-model.rst | 9 +- .../media/mediactl/media-controller.rst | 9 +- .../media/mediactl/media-func-close.rst | 9 +- .../media/mediactl/media-func-ioctl.rst | 9 +- .../media/mediactl/media-func-open.rst | 9 +- .../media/mediactl/media-funcs.rst | 9 +- .../media/mediactl/media-header.rst | 9 +- .../media/mediactl/media-ioc-device-info.rst | 9 +- .../mediactl/media-ioc-enum-entities.rst | 9 +- .../media/mediactl/media-ioc-enum-links.rst | 9 +- .../media/mediactl/media-ioc-g-topology.rst | 9 +- .../mediactl/media-ioc-request-alloc.rst | 26 +- .../media/mediactl/media-ioc-setup-link.rst | 9 +- .../mediactl/media-request-ioc-queue.rst | 26 +- .../mediactl/media-request-ioc-reinit.rst | 26 +- .../media/mediactl/media-types.rst | 9 +- .../media/mediactl/request-api.rst | 26 +- .../media/mediactl/request-func-close.rst | 26 +- .../media/mediactl/request-func-ioctl.rst | 26 +- .../media/mediactl/request-func-poll.rst | 26 +- .../userspace-api/media/rc/keytable.c.rst | 9 +- .../userspace-api/media/rc/lirc-dev-intro.rst | 9 +- .../userspace-api/media/rc/lirc-dev.rst | 9 +- .../userspace-api/media/rc/lirc-func.rst | 9 +- .../media/rc/lirc-get-features.rst | 9 +- .../media/rc/lirc-get-rec-mode.rst | 9 +- .../media/rc/lirc-get-rec-resolution.rst | 9 +- .../media/rc/lirc-get-send-mode.rst | 9 +- .../media/rc/lirc-get-timeout.rst | 9 +- .../userspace-api/media/rc/lirc-header.rst | 9 +- .../userspace-api/media/rc/lirc-read.rst | 9 +- .../rc/lirc-set-measure-carrier-mode.rst | 9 +- .../media/rc/lirc-set-rec-carrier-range.rst | 9 +- .../media/rc/lirc-set-rec-carrier.rst | 9 +- .../media/rc/lirc-set-rec-timeout-reports.rst | 9 +- .../media/rc/lirc-set-rec-timeout.rst | 9 +- .../media/rc/lirc-set-send-carrier.rst | 9 +- .../media/rc/lirc-set-send-duty-cycle.rst | 9 +- .../media/rc/lirc-set-transmitter-mask.rst | 9 +- .../media/rc/lirc-set-wideband-receiver.rst | 9 +- .../userspace-api/media/rc/lirc-write.rst | 9 +- .../userspace-api/media/rc/rc-intro.rst | 9 +- .../userspace-api/media/rc/rc-protos.rst | 4 +- .../userspace-api/media/rc/rc-sysfs-nodes.rst | 9 +- .../media/rc/rc-table-change.rst | 9 +- .../userspace-api/media/rc/rc-tables.rst | 9 +- .../media/rc/remote_controllers.rst | 9 +- .../userspace-api/media/v4l/app-pri.rst | 9 +- .../userspace-api/media/v4l/async.rst | 9 +- .../userspace-api/media/v4l/audio.rst | 9 +- .../userspace-api/media/v4l/biblio.rst | 9 +- .../userspace-api/media/v4l/buffer.rst | 9 +- .../media/v4l/capture-example.rst | 9 +- .../userspace-api/media/v4l/capture.c.rst | 9 +- .../media/v4l/colorspaces-defs.rst | 9 +- .../media/v4l/colorspaces-details.rst | 9 +- .../userspace-api/media/v4l/colorspaces.rst | 9 +- .../userspace-api/media/v4l/common-defs.rst | 9 +- .../userspace-api/media/v4l/common.rst | 9 +- .../userspace-api/media/v4l/compat.rst | 9 +- .../userspace-api/media/v4l/control.rst | 9 +- .../userspace-api/media/v4l/crop.rst | 9 +- .../userspace-api/media/v4l/depth-formats.rst | 9 +- .../userspace-api/media/v4l/dev-capture.rst | 9 +- .../userspace-api/media/v4l/dev-event.rst | 9 +- .../userspace-api/media/v4l/dev-mem2mem.rst | 9 +- .../userspace-api/media/v4l/dev-meta.rst | 9 +- .../userspace-api/media/v4l/dev-osd.rst | 9 +- .../userspace-api/media/v4l/dev-output.rst | 9 +- .../userspace-api/media/v4l/dev-overlay.rst | 9 +- .../userspace-api/media/v4l/dev-radio.rst | 9 +- .../userspace-api/media/v4l/dev-raw-vbi.rst 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9 +- .../userspace-api/media/v4l/format.rst | 9 +- .../userspace-api/media/v4l/func-close.rst | 9 +- .../userspace-api/media/v4l/func-ioctl.rst | 9 +- .../userspace-api/media/v4l/func-mmap.rst | 9 +- .../userspace-api/media/v4l/func-munmap.rst | 9 +- .../userspace-api/media/v4l/func-open.rst | 9 +- .../userspace-api/media/v4l/func-poll.rst | 9 +- .../userspace-api/media/v4l/func-read.rst | 9 +- .../userspace-api/media/v4l/func-select.rst | 9 +- .../userspace-api/media/v4l/func-write.rst | 9 +- .../userspace-api/media/v4l/hist-v4l2.rst | 9 +- .../userspace-api/media/v4l/hsv-formats.rst | 9 +- Documentation/userspace-api/media/v4l/io.rst | 9 +- .../media/v4l/libv4l-introduction.rst | 9 +- .../userspace-api/media/v4l/libv4l.rst | 9 +- .../userspace-api/media/v4l/meta-formats.rst | 9 +- .../userspace-api/media/v4l/mmap.rst | 9 +- .../userspace-api/media/v4l/open.rst | 9 +- .../userspace-api/media/v4l/pixfmt-bayer.rst | 9 +- .../media/v4l/pixfmt-compressed.rst | 9 +- 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| 9 +- .../media/v4l/vidioc-enum-framesizes.rst | 9 +- .../media/v4l/vidioc-enum-freq-bands.rst | 9 +- .../media/v4l/vidioc-enumaudio.rst | 9 +- .../media/v4l/vidioc-enumaudioout.rst | 9 +- .../media/v4l/vidioc-enuminput.rst | 9 +- .../media/v4l/vidioc-enumoutput.rst | 9 +- .../media/v4l/vidioc-enumstd.rst | 9 +- .../userspace-api/media/v4l/vidioc-expbuf.rst | 9 +- .../media/v4l/vidioc-g-audio.rst | 9 +- .../media/v4l/vidioc-g-audioout.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-crop.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-ctrl.rst | 9 +- .../media/v4l/vidioc-g-dv-timings.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-edid.rst | 9 +- .../media/v4l/vidioc-g-enc-index.rst | 9 +- .../media/v4l/vidioc-g-ext-ctrls.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-fbuf.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-fmt.rst | 9 +- .../media/v4l/vidioc-g-frequency.rst | 9 +- .../media/v4l/vidioc-g-input.rst | 9 +- .../media/v4l/vidioc-g-jpegcomp.rst | 9 +- .../media/v4l/vidioc-g-modulator.rst | 9 +- .../media/v4l/vidioc-g-output.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-parm.rst | 9 +- .../media/v4l/vidioc-g-priority.rst | 9 +- .../media/v4l/vidioc-g-selection.rst | 9 +- .../media/v4l/vidioc-g-sliced-vbi-cap.rst | 9 +- .../userspace-api/media/v4l/vidioc-g-std.rst | 9 +- .../media/v4l/vidioc-g-tuner.rst | 9 +- .../media/v4l/vidioc-log-status.rst | 9 +- .../media/v4l/vidioc-overlay.rst | 9 +- .../media/v4l/vidioc-prepare-buf.rst | 9 +- .../userspace-api/media/v4l/vidioc-qbuf.rst | 9 +- .../media/v4l/vidioc-query-dv-timings.rst | 9 +- .../media/v4l/vidioc-querybuf.rst | 9 +- .../media/v4l/vidioc-querycap.rst | 9 +- .../media/v4l/vidioc-queryctrl.rst | 9 +- .../media/v4l/vidioc-querystd.rst | 9 +- .../media/v4l/vidioc-reqbufs.rst | 9 +- .../media/v4l/vidioc-s-hw-freq-seek.rst | 9 +- .../media/v4l/vidioc-streamon.rst | 9 +- .../v4l/vidioc-subdev-enum-frame-interval.rst | 9 +- .../v4l/vidioc-subdev-enum-frame-size.rst | 9 +- .../v4l/vidioc-subdev-enum-mbus-code.rst | 9 +- .../media/v4l/vidioc-subdev-g-crop.rst | 9 +- .../media/v4l/vidioc-subdev-g-fmt.rst | 9 +- .../v4l/vidioc-subdev-g-frame-interval.rst | 9 +- .../media/v4l/vidioc-subdev-g-selection.rst | 9 +- .../media/v4l/vidioc-subdev-querycap.rst | 9 +- .../media/v4l/vidioc-subscribe-event.rst | 9 +- .../userspace-api/media/v4l/yuv-formats.rst | 9 +- LICENSES/deprecated/GFDL-1.1+ | 366 ++++++++ LICENSES/deprecated/GFDL-1.2 | 408 +++++++++ arch/Kconfig | 2 +- init/Kconfig | 2 +- mm/Kconfig | 2 +- mm/nommu.c | 2 +- 443 files changed, 1801 insertions(+), 4023 deletions(-) rename Documentation/{nommu-mmap.txt => admin-guide/mm/nommu-mmap.rst} (100%) rename Documentation/{bus-virt-phys-mapping.txt => core-api/bus-virt-phys-mapping.rst} (100%) rename Documentation/{this_cpu_ops.txt => core-api/this_cpu_ops.rst} (100%) rename Documentation/{process => core-api}/unaligned-memory-access.rst (100%) rename Documentation/devicetree/{booting-without-of.txt => booting-without-of.rst} (90%) rename Documentation/{mailbox.txt => driver-api/mailbox.rst} (100%) rename Documentation/trace/{ring-buffer-design.txt => ring-buffer-design.rst} (57%) create mode 100644 LICENSES/deprecated/GFDL-1.1+ create mode 100644 LICENSES/deprecated/GFDL-1.2 -- 2.26.2

3 4

[PATCH v2] dmabuf: use spinlock to access dmabuf->name
by Charan Teja Kalla 23 Jun '20

23 Jun '20

There exists a sleep-while-atomic bug while accessing the dmabuf->name under mutex in the dmabuffs_dname(). This is caused from the SELinux permissions checks on a process where it tries to validate the inherited files from fork() by traversing them through iterate_fd() (which traverse files under spin_lock) and call match_file(security/selinux/hooks.c) where the permission checks happen. This audit information is logged using dump_common_audit_data() where it calls d_path() to get the file path name. If the file check happen on the dmabuf's fd, then it ends up in ->dmabuffs_dname() and use mutex to access dmabuf->name. The flow will be like below: flush_unauthorized_files() iterate_fd() spin_lock() --> Start of the atomic section. match_file() file_has_perm() avc_has_perm() avc_audit() slow_avc_audit() common_lsm_audit() dump_common_audit_data() audit_log_d_path() d_path() dmabuffs_dname() mutex_lock()--> Sleep while atomic. Call trace captured (on 4.19 kernels) is below: ___might_sleep+0x204/0x208 __might_sleep+0x50/0x88 __mutex_lock_common+0x5c/0x1068 __mutex_lock_common+0x5c/0x1068 mutex_lock_nested+0x40/0x50 dmabuffs_dname+0xa0/0x170 d_path+0x84/0x290 audit_log_d_path+0x74/0x130 common_lsm_audit+0x334/0x6e8 slow_avc_audit+0xb8/0xf8 avc_has_perm+0x154/0x218 file_has_perm+0x70/0x180 match_file+0x60/0x78 iterate_fd+0x128/0x168 selinux_bprm_committing_creds+0x178/0x248 security_bprm_committing_creds+0x30/0x48 install_exec_creds+0x1c/0x68 load_elf_binary+0x3a4/0x14e0 search_binary_handler+0xb0/0x1e0 So, use spinlock to access dmabuf->name to avoid sleep-while-atomic. Cc: <stable(a)vger.kernel.org> [5.3+] Signed-off-by: Charan Teja Reddy <charante(a)codeaurora.org> --- Changes in V2: Addressed review comments from Ruhl, Michael J Changes in V1: https://lore.kernel.org/patchwork/patch/1255055/ drivers/dma-buf/dma-buf.c | 11 +++++++---- include/linux/dma-buf.h | 1 + 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 01ce125..d81d298 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -45,10 +45,10 @@ static char *dmabuffs_dname(struct dentry *dentry, char *buffer, int buflen) size_t ret = 0; dmabuf = dentry->d_fsdata; - dma_resv_lock(dmabuf->resv, NULL); + spin_lock(&dmabuf->name_lock); if (dmabuf->name) ret = strlcpy(name, dmabuf->name, DMA_BUF_NAME_LEN); - dma_resv_unlock(dmabuf->resv); + spin_unlock(&dmabuf->name_lock); return dynamic_dname(dentry, buffer, buflen, "/%s:%s", dentry->d_name.name, ret > 0 ? name : ""); @@ -341,8 +341,10 @@ static long dma_buf_set_name(struct dma_buf *dmabuf, const char __user *buf) kfree(name); goto out_unlock; } + spin_lock(&dmabuf->name_lock); kfree(dmabuf->name); dmabuf->name = name; + spin_unlock(&dmabuf->name_lock); out_unlock: dma_resv_unlock(dmabuf->resv); @@ -405,10 +407,10 @@ static void dma_buf_show_fdinfo(struct seq_file *m, struct file *file) /* Don't count the temporary reference taken inside procfs seq_show */ seq_printf(m, "count:\t%ld\n", file_count(dmabuf->file) - 1); seq_printf(m, "exp_name:\t%s\n", dmabuf->exp_name); - dma_resv_lock(dmabuf->resv, NULL); + spin_lock(&dmabuf->name_lock); if (dmabuf->name) seq_printf(m, "name:\t%s\n", dmabuf->name); - dma_resv_unlock(dmabuf->resv); + spin_unlock(&dmabuf->name_lock); } static const struct file_operations dma_buf_fops = { @@ -546,6 +548,7 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info) dmabuf->size = exp_info->size; dmabuf->exp_name = exp_info->exp_name; dmabuf->owner = exp_info->owner; + spin_lock_init(&dmabuf->name_lock); init_waitqueue_head(&dmabuf->poll); dmabuf->cb_excl.poll = dmabuf->cb_shared.poll = &dmabuf->poll; dmabuf->cb_excl.active = dmabuf->cb_shared.active = 0; diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index ab0c156..93108fd 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -311,6 +311,7 @@ struct dma_buf { void *vmap_ptr; const char *exp_name; const char *name; + spinlock_t name_lock; struct module *owner; struct list_head list_node; void *priv; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

2 5

[PATCH v4 0/5] Add support for PinePhone LCD panel
by Ondrej Jirman 23 Jun '20

23 Jun '20

This patchset adds support for the LCD panel of PinePhone. The first 3 patches are for the panel itself, and the last 2 patches are for enabling it on PinePhone. I've tested this on PinePhone 1.0 and 1.2. Please take a look. thank you and regards, Ondrej Jirman Changes in v4: - use ->type from the mode instead of hardcoding (Samuel) - move init_sequence to ->prepare (Samuel) - move anti-flicker delay to ->enable, explain it (Samuel) - add enter_sleep after display_off (Samuel) - drop ->disable (move code to ->unprepare) - add ID bytes dumping (Linus) (I can't test it since allwinner DSI driver has a broken dcs_read function, and I didn't manage to fix it.) - document magic bytes (Linus) - assert reset during powerup - cleanup powerup timings according to the datasheet Changes in v3: - Panel driver renamed to the name of the LCD controller - Re-organize the driver slightly to more easily support more panels based on the same controller. - Add patch to enable the touchscreen to complete the LCD support on PinePhone. - Dropped the "DSI fix" patch (the driver seems to work for me without it) - Improved brightness levels handling: - PinePhone 1.0 uses default levels generated by the driver - On PinePhone 1.1 duty cycles < 20% lead to black screen, so default levels can't be used. Martijn Braam came up with a list of duty cycle values that lead to perception of linear brigtness level <-> light intensity on PinePhone 1.1 - There was some feedback on v2 about this being similar to st7701. It's only similar in name. Most of the "user commands" are different, so I opted to keep this in a new driver instead of creating st770x. Anyone who likes to check the differences, here are datasheets: - https://megous.com/dl/tmp/ST7703_DS_v01_20160128.pdf - https://megous.com/dl/tmp/ST7701.pdf Changes in v2: - DT Example fix. - DT Format fix. - Raised copyright info to 2020. - Sort panel operation functions. - Sort inclusion. -- For phone owners: -- There's an open question on how to set the backlight brightness values on post 1.0 revision phone, since lower duty cycles (< 10-20%) lead to backlight being black. It would be nice if more people can test the various backlight levels on 1.1 and 1.2 revision with this change in dts: brightness-levels = <0 1000>; num-interpolated-steps = <1000>; and report at what brightness level the backlight turns on. So far it seems this has a wide range. Lowest useable duty cycle for me is ~7% on 1.2 and for Martijn ~20% on 1.1. Icenowy Zheng (4): dt-bindings: vendor-prefixes: Add Xingbangda dt-bindings: panel: Add binding for Xingbangda XBD599 panel drm: panel: Add Xingbangda XBD599 panel (ST7703 controller) arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone Ondrej Jirman (1): arm64: dts: sun50i-a64-pinephone: Add touchscreen support .../display/panel/sitronix,st7703.yaml | 63 +++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + .../allwinner/sun50i-a64-pinephone-1.1.dts | 19 + .../dts/allwinner/sun50i-a64-pinephone.dtsi | 54 ++ drivers/gpu/drm/panel/Kconfig | 10 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-sitronix-st7703.c | 535 ++++++++++++++++++ 7 files changed, 684 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/sitronix,st7703.yaml create mode 100644 drivers/gpu/drm/panel/panel-sitronix-st7703.c -- 2.27.0

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[PATCH libdrm] intel: sync i915_pciids.h with kernel
by ramadevi.gandi＠intel.com 23 Jun '20

23 Jun '20

From: Gandi Ramadevi <ramadevi.gandi(a)intel.com> Add DG1 PCI ID Signed-off-by: Gandi Ramadevi <ramadevi.gandi(a)intel.com> --- intel/i915_pciids.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/intel/i915_pciids.h b/intel/i915_pciids.h index 662d8351..724e68a0 100644 --- a/intel/i915_pciids.h +++ b/intel/i915_pciids.h @@ -605,4 +605,9 @@ INTEL_VGA_DEVICE(0x9AD9, info), \ INTEL_VGA_DEVICE(0x9AF8, info) +/* DG1 */ +#define INTEL_DG1_IDS(info) \ + INTEL_VGA_DEVICE(0x4905, info), \ + INTEL_VGA_DEVICE(0x4906, info) + #endif /* _I915_PCIIDS_H */ -- 2.25.1

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[PATCH 1/2] drm: panel-orientation-quirks: Add quirk for Asus T101HA panel
by Hans de Goede 23 Jun '20

23 Jun '20

Like the Asus T100HA the Asus T101HA also uses a panel which has been mounted 90 degrees rotated, add a quirk for this. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> --- drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c index ffd95bfeaa94..d11d83703931 100644 --- a/drivers/gpu/drm/drm_panel_orientation_quirks.c +++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c @@ -121,6 +121,12 @@ static const struct dmi_system_id orientation_data[] = { DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"), }, .driver_data = (void *)&asus_t100ha, + }, { /* Asus T101HA */ + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"), + }, + .driver_data = (void *)&lcd800x1280_rightside_up, }, { /* GPD MicroPC (generic strings, also match on bios date) */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), -- 2.26.2

2 3

[PATCH v4] drm/fourcc: document modifier uniqueness requirements
by Simon Ser 23 Jun '20

23 Jun '20

There have suggestions to bake pitch alignment, address alignement, contiguous memory or other placement (hidden VRAM, GTT/BAR, etc) constraints into modifiers. Last time this was brought up it seemed like the consensus was to not allow this. Document this in drm_fourcc.h. There are several reasons for this. - Encoding all of these constraints in the modifiers would explode the search space pretty quickly (we only have 64 bits to work with). - Modifiers need to be unambiguous: a buffer can only have a single modifier. - Modifier users aren't expected to parse modifiers (except drivers). v2: add paragraph about aliases (Daniel) v3: fix unrelated changes sent with the patch v4: disambiguate users between driver and higher-level programs (Brian, Daniel) Signed-off-by: Simon Ser <contact(a)emersion.fr> Reviewed-by: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Daniel Stone <daniel(a)fooishbar.org> Cc: Bas Nieuwenhuizen <bas(a)basnieuwenhuizen.nl> Cc: Dave Airlie <airlied(a)gmail.com> Cc: Marek Olšák <maraeo(a)gmail.com> Cc: Alex Deucher <alexdeucher(a)gmail.com> Cc: Neil Armstrong <narmstrong(a)baylibre.com> Cc: Michel Dänzer <michel(a)daenzer.net> Cc: Brian Starkey <brian.starkey(a)arm.com> --- include/uapi/drm/drm_fourcc.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 490143500a50..4d3f819dca0b 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -58,6 +58,28 @@ extern "C" { * may preserve meaning - such as number of planes - from the fourcc code, * whereas others may not. * + * Modifiers must uniquely encode buffer layout. In other words, a buffer must + * match only a single modifier. A modifier must not be a subset of layouts of + * another modifier. For instance, it's incorrect to encode pitch alignment in + * a modifier: a buffer may match a 64-pixel aligned modifier and a 32-pixel + * aligned modifier. That said, modifiers can have implicit minimal + * requirements. + * + * For modifiers where the combination of fourcc code and modifier can alias, + * a canonical pair needs to be defined and used by all drivers. An example + * is AFBC, where both ARGB and ABGR have the exact same compressed layout. + * + * There are two kinds of modifier users: + * + * - Kernel and user-space drivers: for drivers it's important that modifiers + * don't alias, otherwise two drivers might support the same format but use + * different aliases, preventing them from sharing buffers in an efficient + * format. + * - Higher-level programs interfacing with KMS/GBM/EGL/Vulkan/etc: these users + * see modifiers as opaque tokens they can check for equality and intersect. + * These users musn't need to know to reason about the modifier value + * (i.e. they are not expected to extract information out of the modifier). + * * Vendors should document their modifier usage in as much detail as * possible, to ensure maximum compatibility across devices, drivers and * applications. -- 2.27.0

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dri-devel June 2020