OpenCloudOS-Kernel/drivers/gpu/drm
Ramalingam C f179a2fc2e drm/i915: Stop encryption for repeater with no sink
If a HDCP repeater is detected with zero downstream devices,
HDCP spec approves either of below actions:

1. Dont continue on second stage authentication. Disable encryption.
2. Continue with second stage authentication excluding the KSV list and
   on success, continue encryption.

Since disable encryption is agreed, repeater is not expected to have its
own display. So there is no consumption of the display content in such
setup.

Hence, incase of repeater with zero device count, this patch fails the
HDCP authentication and stops the HDCP encryption.

v2:
  Rephrased commit msg and added comments in code [Seanpaul]

v3:
  No changes. Added Reviewed-by tag.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1517609350-10698-3-git-send-email-ramalingam.c@intel.com
2018-02-05 12:58:53 -05:00
..
amd drm/amdgpu: fix test for shadow page tables 2017-12-20 16:02:48 -05:00
arc drm/arc: Use drm_gem_cma_print_info() 2017-11-11 11:23:15 +01:00
arm drm/arm/mali: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:43 +01:00
armada Merge branch 'drm-armada-devel-4.15' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next 2018-01-05 09:51:43 +10:00
ast drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
atmel-hlcdc drm/atmel-hlcdc: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:39 +01:00
bochs drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
bridge Linux 4.15-rc4 2017-12-19 21:37:24 +10:00
cirrus drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
etnaviv drm/etnaviv: use memset32 to init pagetable 2018-01-02 17:36:53 +01:00
exynos drm/exynos: ipp: Remove Exynos DRM IPP subsystem 2018-01-02 08:41:22 +09:00
fsl-dcu drm/fsl-dcu: Use drm_mode_config_helper_suspend/resume() 2017-12-05 13:46:41 +01:00
gma500 drm/gma500: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-08 13:05:22 +01:00
hisilicon drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
i2c Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
i810
i915 drm/i915: Stop encryption for repeater with no sink 2018-02-05 12:58:53 -05:00
imx drm/imx: format modifier support 2018-01-05 11:33:24 +10:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mediatek Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
meson drm/meson: Add missing VPU init 2017-12-08 10:43:46 +01:00
mga
mgag200 drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
msm drm/msm: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-08 13:05:53 +01:00
mxsfb drm/mxsfb: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:02:20 +02:00
nouveau Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-12-21 11:17:45 +10:00
omapdrm drm: omapdrm: Simplify platform registration 2017-12-19 11:21:32 +02:00
panel Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
pl111 drm/pl111: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:41 +01:00
qxl Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-12-21 11:17:45 +10:00
r128 r128: switch compat ioctls to drm_ioctl_kernel() 2017-09-29 13:42:35 -04:00
radeon drm/radeon: Remove KFD_CIK_SDMA_QUEUE_OFFSET 2017-12-20 12:00:22 -05:00
rcar-du drm: rcar-du: Clip planes to screen boundaries 2017-12-04 18:38:31 +02:00
rockchip drm/rockchip: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-08 13:08:06 +01:00
savage
scheduler drm/scheduler: add license to the Makefile 2017-12-07 11:52:29 -05:00
selftests Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
shmobile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
sis
sti drm/sti: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:41 +01:00
stm drm/stm: ltdc: Remove unnecessary platform_get_resource() error check 2017-12-19 15:23:45 +01:00
sun4i drm/sun4i: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:42 +01:00
tdfx
tegra drm/tegra: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-08 13:09:27 +01:00
tilcdc drm/tilcdc changes for 4.16 2017-12-21 11:10:20 +10:00
tinydrm drm/tinydrm: Use drm_fb_cma_fbdev_init_with_funcs/fini() 2017-12-10 15:37:07 +01:00
ttm drm/ttm: cleanup some old defines 2017-12-18 11:53:01 -05:00
tve200 drm/tve200: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:42 +01:00
udl Merge tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-10-24 16:51:05 +10:00
vc4 Linux 4.15-rc4 2017-12-19 21:37:24 +10:00
vgem treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
via Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
virtio drm/ttm: add context to driver move callback as well 2017-12-06 12:48:03 -05:00
vmwgfx drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
zte drm/zte: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:43 +01:00
Kconfig Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-12-21 11:17:45 +10:00
Makefile Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-12-21 11:17:45 +10:00
ati_pcigart.c
drm_agpsupport.c drm/agpsupport: Remove extra blank line 2017-09-20 09:54:19 -07:00
drm_atomic.c drm: Add Content Protection property 2018-01-08 14:57:41 -05:00
drm_atomic_helper.c Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
drm_auth.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_blend.c drm/atomic-helper: Make zpos property kerneldoc less misleading 2017-12-14 14:20:35 +01:00
drm_bridge.c
drm_bufs.c
drm_cache.c
drm_color_mgmt.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_connector.c drm: Add Content Protection property 2018-01-08 14:57:41 -05:00
drm_context.c
drm_crtc.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_crtc_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_crtc_helper_internal.h
drm_crtc_internal.h drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_debugfs.c drm/debugfs: Fix framebuffer debugfs file init 2017-11-14 11:08:17 +02:00
drm_debugfs_crc.c drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2. 2017-09-13 09:50:52 +02:00
drm_dma.c
drm_dp_aux_dev.c Pass mode to wait_on_atomic_t() action funcs and provide default actions 2017-11-13 15:38:16 +00:00
drm_dp_dual_mode_helper.c drm: Add retries for lspcon mode detection 2017-10-13 12:13:54 +03:00
drm_dp_helper.c drm: don't link DP aux i2c adapter to the hardware device node 2017-11-20 09:34:17 +01:00
drm_dp_mst_topology.c drm/dp/mst: Sideband message transaction to power up/down nodes 2017-09-11 16:03:57 +03:00
drm_drv.c Merge airlied/drm-next into drm-misc-next 2017-11-21 14:17:56 +01:00
drm_dumb_buffers.c
drm_edid.c drm/edid: kerneldoc for is_hdmi2_sink 2017-12-15 11:13:15 +01:00
drm_edid_load.c drm: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
drm_encoder.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c drm/cma-helper: Add drm_fb_cma_fbdev_init/fini() 2017-12-08 14:27:47 +01:00
drm_fb_helper.c drm/framebuffer: Print task that allocated the fb in debug info. 2017-12-20 15:30:17 +01:00
drm_file.c
drm_flip_work.c
drm_fourcc.c
drm_framebuffer.c drm/framebuffer: Print task that allocated the fb in debug info. 2017-12-20 15:30:17 +01:00
drm_gem.c drm/framebuffer: Add framebuffer debugfs file 2017-11-11 11:21:19 +01:00
drm_gem_cma_helper.c drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1 2017-11-15 18:14:46 +01:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: drm_gem_fbdev_fb_create() make funcs optional 2017-12-08 14:26:00 +01:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h Merge airlied/drm-next into drm-misc-next 2017-11-21 14:17:56 +01:00
drm_ioc32.c
drm_ioctl.c drm: Add four ioctls for managing drm mode object leases [v7] 2017-10-25 16:31:30 +10:00
drm_irq.c
drm_kms_helper_common.c drm: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
drm_lease.c drm/drm_lease: Prevent deadlock in case drm_lease_create() fails 2017-12-14 08:25:37 +01:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c Linux 4.15-rc4 2017-12-19 21:37:24 +10:00
drm_mode_config.c Linux 4.15-rc4 2017-12-19 21:37:24 +10:00
drm_mode_object.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_modes.c
drm_modeset_helper.c drm/modeset-helper: Add simple modeset suspend/resume helpers 2017-11-30 18:18:08 +01:00
drm_modeset_lock.c drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all 2017-10-31 17:36:46 +01:00
drm_of.c drm/drm_of: Move drm_of_panel_bridge_remove_function into header. 2017-10-13 16:59:36 +02:00
drm_panel.c
drm_panel_orientation_quirks.c drm: Add panel orientation quirks, v6. 2017-12-04 23:03:21 +01:00
drm_pci.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_plane.c drm/vblank: Pass crtc_id to page_flip_ioctl. 2017-11-23 13:04:19 +01:00
drm_plane_helper.c drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c 2017-11-20 21:14:22 +02:00
drm_prime.c drm/prime: skip CPU sync in map/unmap dma_buf 2017-12-04 17:30:19 +01:00
drm_print.c drm/printer: Add drm_vprintf() 2017-11-23 12:31:49 +02:00
drm_probe_helper.c drm/probe-helper: Fix drm_kms_helper_poll_enable() docs 2017-11-30 18:17:37 +01:00
drm_property.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_simple_kms_helper.c drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c 2017-11-20 21:14:22 +02:00
drm_syncobj.c drm/syncobj: some kerneldoc polish 2017-12-15 11:26:52 +01:00
drm_sysfs.c
drm_trace.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
drm_trace_points.c
drm_vblank.c Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
drm_vm.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 12:21:28 -07:00
drm_vma_manager.c drm/drm_vma_manager.c: Remove useless goto statement 2017-11-02 10:44:08 +01:00