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linux/include/drm
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Sean Paul 9ab57658a6 drm/i915: Fix sha_text population code 
This patch fixes a few bugs:

1- We weren't taking into account sha_leftovers when adding multiple
   ksvs to sha_text. As such, we were or'ing the end of ksv[j - 1] with
   the beginning of ksv[j]

2- In the sha_leftovers == 2 and sha_leftovers == 3 case, bstatus was
   being placed on the wrong half of sha_text, overlapping the leftover
   ksv value

3- In the sha_leftovers == 2 case, we need to manually terminate the
   byte stream with 0x80 since the hardware doesn't have enough room to
   add it after writing M0

The upside is that all of the HDCP supported HDMI repeaters I could
find on Amazon just strip HDCP anyways, so it turns out to be _really_
hard to hit any of these cases without an MST hub, which is not (yet)
supported. Oh, and the sha_leftovers == 1 case works perfectly!

Fixes: ee5e5e7a5e ("drm/i915: Add HDCP framework + base implementation")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.17+
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200818153910.27894-2-sean@poorly.run
(cherry picked from commit 1f0882214f)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-09-02 10:48:11 +03:00
..
bridge drm: bridge: dw-hdmi: Pass drm_display_info to dw_hdmi_support_scdc() 2020-06-23 19:57:06 +02:00
i2c
ttm drm/ttm: ttm_bo_swapout_all doesn't use it's argument. 2020-07-29 10:01:23 +10:00
amd_asic_type.h drm/amdgpu: add navy_flounder asic type 2020-07-15 12:45:39 -04:00
drm_agpsupport.h drm/agp: Remove unused function drm_agp_bind_pages 2019-07-15 18:11:30 +02:00
drm_atomic_helper.h drm/bridge: Add the necessary bits to support bus format negotiation 2020-01-31 16:39:53 +01:00
drm_atomic_state_helper.h drm/bridge: Add a drm_bridge_state object 2020-01-31 16:00:21 +01:00
drm_atomic_uapi.h
drm_atomic.h drm: drm_atomic.h: delete duplicated word in comment 2020-07-15 14:02:29 +02:00
drm_audio_component.h Prep patches + headers for the mei-hdcp/i915 component interfaces 2019-02-20 11:53:48 +02:00
drm_auth.h drm: make drm/drm_auth.h self contained 2019-05-27 18:05:44 +02:00
drm_blend.h
drm_bridge_connector.h drm: Add helper to create a connector for a chain of bridges 2020-02-26 13:31:41 +02:00
drm_bridge.h drm: drm_bridge.h: delete duplicated word in comment 2020-07-15 14:02:34 +02:00
drm_cache.h MIPS: Loongson64: Rename CPU TYPES 2019-10-31 15:03:10 -07:00
drm_client.h drm/client: Add drm_client_modeset_check() 2020-05-26 13:32:03 +02:00
drm_color_mgmt.h drm: Inline drm_color_lut_extract() 2019-11-29 21:29:17 +02:00
drm_connector.h drm/drm_connector: use inline comments for drm_bus_flags 2020-07-01 11:05:27 +02:00
drm_crtc_helper.h drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
drm_crtc.h drm: Add get_vblank_timestamp() to struct drm_crtc_funcs 2020-02-13 13:08:13 +01:00
drm_damage_helper.h drm/damage-helper: Add drm_atomic_helper_damage_merged() 2019-01-17 10:56:54 +01:00
drm_debugfs_crc.h
drm_debugfs.h drm/debugfs: remove checks for return value of drm_debugfs functions. 2020-03-18 17:32:20 +01:00
drm_device.h drm/doc: add WARNING for drm_device::struct_mutex 2020-05-19 21:52:25 +01:00
drm_displayid.h drm/edid: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
drm_dp_dual_mode_helper.h
drm_dp_helper.h drm-misc-next for v5.9: 2020-06-30 14:04:00 +10:00
drm_dp_mst_helper.h drm/dp_mst: Fix flushing the delayed port/mstb destroy work 2020-06-11 15:38:12 +03:00
drm_drv.h drm: vmwgfx: remove drm_driver::master_set() return type 2020-06-15 14:48:20 +01:00
drm_dsc.h drm/dsc: Split DSC PPS and SDP header initialisations 2019-03-05 13:24:34 -05:00
drm_edid.h drm: Add helper to compare edids. 2020-06-30 13:31:15 +02:00
drm_encoder_slave.h drm: remove include of drmP.h from drm_encoder_slave.h 2019-01-09 22:35:35 +01:00
drm_encoder.h drm: Validate encoder->possible_crtcs 2020-03-18 18:38:27 +02:00
drm_fb_cma_helper.h drm/fb-cma-helpers: Fix include issue 2020-01-09 17:33:41 +01:00
drm_fb_helper.h drm: Don't return 0 from a void drm_fbdev_generic_setup 2020-04-08 22:42:39 +01:00
drm_file.h drm-misc-next for 5.8: 2020-04-22 10:41:35 +10:00
drm_fixed.h
drm_flip_work.h
drm_format_helper.h drm/format-helper: Add drm_fb_swab() 2020-05-26 13:33:08 +02:00
drm_fourcc.h drm/fb: Extend format_info member arrays to handle four planes 2020-01-07 13:16:08 +02:00
drm_framebuffer.h drm/core: Calculate bpp in afbc helper 2020-04-01 14:11:22 +02:00
drm_gem_cma_helper.h drm/cma-helper: Add DRM_GEM_CMA_DRIVER_OPS to set default GEM CMA functions 2020-06-10 09:01:49 +02:00
drm_gem_framebuffer_helper.h drm/core: Add drm_afbc_framebuffer and a corresponding helper 2020-03-18 11:22:05 +01:00
drm_gem_shmem_helper.h drm/shmem-helper: Add .gem_create_object helper that sets map_cached flag 2020-06-10 10:16:43 +02:00
drm_gem_ttm_helper.h drm/ttm: add drm_gem_ttm_mmap() 2019-10-17 13:59:16 +02:00
drm_gem_vram_helper.h drm/vram-helper: Managed vram helpers 2020-07-20 09:15:56 +02:00
drm_gem.h drm: drm_gem.h: delete duplicated words in comments 2020-07-15 14:02:42 +02:00
drm_hashtab.h
drm_hdcp.h drm/i915: Fix sha_text population code 2020-09-02 10:48:11 +03:00
drm_ioctl.h drm/ioctl: Ditch DRM_UNLOCKED except for the legacy vblank ioctl 2019-06-21 19:13:10 +02:00
drm_irq.h
drm_lease.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
drm_legacy.h drm-misc-next for 5.8: 2020-04-22 10:41:35 +10:00
drm_managed.h drm: Add docs for managed resources 2020-03-26 16:09:48 +01:00
drm_mipi_dbi.h drm/mipi-dbi: Remove ->enabled 2020-06-24 09:17:34 +02:00
drm_mipi_dsi.h drm/dsi: add helpers for DSI compression mode and PPS packets 2019-11-07 15:00:16 +02:00
drm_mm.h drm/mm: optimize rb_hole_addr rbtree search 2020-05-05 13:39:38 +02:00
drm_mode_config.h drm next for 5.9-rc1 2020-08-05 19:50:06 -07:00
drm_mode_object.h
drm_modes.h drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_modeset_helper_vtables.h drm/probe_helper: Add drm_connector_helper_funcs.mode_valid_ctx 2020-07-13 13:29:20 -04:00
drm_modeset_helper.h drm: remove drmP.h from drm_modeset_helper.h 2019-02-07 21:48:34 +01:00
drm_modeset_lock.h drm/modeset-lock: Take the modeset BKL for legacy drivers 2020-08-17 13:41:50 -04:00
drm_of.h drm: of: Fix linking when CONFIG_OF is not set 2020-01-09 10:40:58 +10:00
drm_panel.h drm/drm_panel: fix export of drm_panel_of_backlight, try #3 2020-01-12 21:16:30 +01:00
drm_pciids.h
drm_plane_helper.h
drm_plane.h drm/plane: Clarify our expectations for src/dst rectangles 2019-10-10 15:49:34 +02:00
drm_prime.h drm/prime: Remove duplicate forward declaration 2019-09-16 17:32:51 +02:00
drm_print.h drm: add managed resources tied to drm_device 2020-03-26 14:49:13 +01:00
drm_probe_helper.h drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
drm_property.h
drm_rect.h drm: drm_rect.h: delete duplicated word in comment 2020-07-15 14:03:02 +02:00
drm_scdc_helper.h drm/scdc: Fix typo in bit definition of SCDC_STATUS_FLAGS 2019-11-04 17:58:46 +01:00
drm_self_refresh_helper.h drm/atomic: fix self-refresh helpers crtc state dereference 2019-11-06 13:00:21 -05:00
drm_simple_kms_helper.h drm/simple-kms: Add drm_simple_encoder_{init,create}() 2020-03-02 09:22:35 +01:00
drm_syncobj.h drm/syncobj: add new drm_syncobj_add_point interface v4 2019-04-01 12:05:53 +02:00
drm_sysfs.h drm: uevent for connector status change 2019-08-06 13:16:54 +05:30
drm_util.h drm: Move EXPORT_SYMBOL_FOR_TESTS_ONLY under a separate Kconfig 2019-11-07 21:22:15 +00:00
drm_utils.h drm: export drm_timeout_abs_to_jiffies 2019-03-07 12:00:30 -06:00
drm_vblank_work.h drm/vblank: Add vblank works 2020-07-16 18:16:31 -04:00
drm_vblank.h drm/vblank: Add vblank works 2020-07-16 18:16:31 -04:00
drm_vma_manager.h drm: increase drm mmap_range size to 1TB 2019-04-24 16:20:23 -05:00
drm_writeback.h drm/writeback: wire drm_writeback.h to kernel-doc 2020-04-07 17:39:46 +02:00
gma_drm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
gpu_scheduler.h drm/scheduler: improve job distribution with multiple queues 2020-06-26 14:16:29 +02:00
i915_component.h drm/i915/tgl: Add additional ports for Tiger Lake 2019-07-11 16:31:14 -07:00
i915_drm.h drm: Move port definition back to i915 header 2019-08-30 14:08:26 +05:30
i915_mei_hdcp_interface.h drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_pciids.h drm/i915/dg1: Add DG1 PCI IDs 2020-07-14 02:47:18 -07:00
intel_lpe_audio.h
intel-gtt.h drm: include kernel.h and agp_backend.h from intel-gtt.h 2019-01-02 11:37:47 +02:00
spsc_queue.h
task_barrier.h drm: Add Reusable task barrier. 2019-12-18 16:09:12 -05:00