diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-30 13:34:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-30 13:34:34 -0700 |
| commit | 461f35f014466c4e26dca6be0f431f57297df3f2 (patch) | |
| tree | 0bd2fded69ba0752ca16c304d3e1880d5f1eb30b /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | |
| parent | 53ea7f624fb91074c2f9458832ed74975ee5d64c (diff) | |
| parent | 3698a75f5a98d0a6599e2878ab25d30a82dd836a (diff) | |
Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"The drm core grew a new generic gpu virtual address manager, and new
execution locking helpers. These are used by nouveau now to provide
uAPI support for the userspace Vulkan driver. AMD had a bunch of new
IP core support, loads of refactoring around fbdev, but mostly just
the usual amount of stuff across the board.
core:
- fix gfp flags in drmm_kmalloc
gpuva:
- add new generic GPU VA manager (for nouveau initially)
syncobj:
- add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl
dma-buf:
- acquire resv lock for mmap() in exporters
- support dma-buf self import automatically
- docs fixes
backlight:
- fix fbdev interactions
atomic:
- improve logging
prime:
- remove struct gem_prim_mmap plus driver updates
gem:
- drm_exec: add locking over multiple GEM objects
- fix lockdep checking
fbdev:
- make fbdev userspace interfaces optional
- use linux device instead of fbdev device
- use deferred i/o helper macros in various drivers
- Make FB core selectable without drivers
- Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT
- Add helper macros and Kconfig tokens for DMA-allocated framebuffer
ttm:
- support init_on_free
- swapout fixes
panel:
- panel-edp: Support AUO B116XAB01.4
- Support Visionox R66451 plus DT bindings
- ld9040:
- Backlight support
- magic improved
- Kconfig fix
- Convert to of_device_get_match_data()
- Fix Kconfig dependencies
- simple:
- Set bpc value to fix warning
- Set connector type for AUO T215HVN01
- Support Innolux G156HCE-L01 plus DT bindings
- ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings
- startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings
- sitronix-st7789v:
- Support Inanbo T28CP45TN89 plus DT bindings
- Support EDT ET028013DMA plus DT bindings
- Various cleanups
- edp: Add timings for N140HCA-EAC
- Allow panels and touchscreens to power sequence together
- Fix Innolux G156HCE-L01 LVDS clock
bridge:
- debugfs for chains support
- dw-hdmi:
- Improve support for YUV420 bus format
- CEC suspend/resume
- update EDID on HDMI detect
- dw-mipi-dsi: Fix enable/disable of DSI controller
- lt9611uxc: Use MODULE_FIRMWARE()
- ps8640: Remove broken EDID code
- samsung-dsim: Fix command transfer
- tc358764:
- Handle HS/VS polarity
- Use BIT() macro
- Various cleanups
- adv7511: Fix low refresh rate
- anx7625:
- Switch to macros instead of hardcoded values
- locking fixes
- tc358767: fix hardware delays
- sitronix-st7789v:
- Support panel orientation
- Support rotation property
- Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings
amdgpu:
- SDMA 6.1.0 support
- HDP 6.1 support
- SMUIO 14.0 support
- PSP 14.0 support
- IH 6.1 support
- Lots of checkpatch cleanups
- GFX 9.4.3 updates
- Add USB PD and IFWI flashing documentation
- GPUVM updates
- RAS fixes
- DRR fixes
- FAMS fixes
- Virtual display fixes
- Soft IH fixes
- SMU13 fixes
- Rework PSP firmware loading for other IPs
- Kernel doc fixes
- DCN 3.0.1 fixes
- LTTPR fixes
- DP MST fixes
- DCN 3.1.6 fixes
- SMU 13.x fixes
- PSP 13.x fixes
- SubVP fixes
- GC 9.4.3 fixes
- Display bandwidth calculation fixes
- VCN4 secure submission fixes
- Allow building DC on RISC-V
- Add visible FB info to bo_print_info
- HBR3 fixes
- GFX9 MCBP fix
- GMC10 vmhub index fix
- GMC11 vmhub index fix
- Create a new doorbell manager
- SR-IOV fixes
- initial freesync panel replay support
- revert zpos properly until igt regression is fixeed
- use TTM to manage doorbell BAR
- Expose both current and average power via hwmon if supported
amdkfd:
- Cleanup CRIU dma-buf handling
- Use KIQ to unmap HIQ
- GFX 9.4.3 debugger updates
- GFX 9.4.2 debugger fixes
- Enable cooperative groups fof gfx11
- SVM fixes
- Convert older APUs to use dGPU path like newer APUs
- Drop IOMMUv2 path as it is no longer used
- TBA fix for aldebaran
i915:
- ICL+ DSI modeset sequence
- HDCP improvements
- MTL display fixes and cleanups
- HSW/BDW PSR1 restored
- Init DDI ports in VBT order
- General display refactors
- Start using plane scale factor for relative data rate
- Use shmem for dpt objects
- Expose RPS thresholds in sysfs
- Apply GuC SLPC min frequency softlimit correctly
- Extend Wa_14015795083 to TGL, RKL, DG1 and ADL
- Fix a VMA UAF for multi-gt platform
- Do not use stolen on MTL due to HW bug
- Check HuC and GuC version compatibility on MTL
- avoid infinite GPU waits due to premature release of request memory
- Fixes and updates for GSC memory allocation
- Display SDVO fixes
- Take stolen handling out of FBC code
- Make i915_coherent_map_type GT-centric
- Simplify shmem_create_from_object map_type
msm:
- SM6125 MDSS support
- DPU: SM6125 DPU support
- DSI: runtime PM support, burst mode support
- DSI PHY: SM6125 support in 14nm DSI PHY driver
- GPU: prepare for a7xx
- fix a690 firmware
- disable relocs on a6xx and newer
radeon:
- Lots of checkpatch cleanups
ast:
- improve device-model detection
- Represent BMV as virtual connector
- Report DP connection status
nouveau:
- add new exec/bind interface to support Vulkan
- document some getparam ioctls
- improve VRAM detection
- various fixes/cleanups
- workraound DPCD issues
ivpu:
- MMU updates
- debugfs support
- Support vpu4
virtio:
- add sync object support
atmel-hlcdc:
- Support inverted pixclock polarity
etnaviv:
- runtime PM cleanups
- hang handling fixes
exynos:
- use fbdev DMA helpers
- fix possible NULL ptr dereference
komeda:
- always attach encoder
omapdrm:
- use fbdev DMA helpers
ingenic:
- kconfig regmap fixes
loongson:
- support display controller
mediatek:
- Small mtk-dpi cleanups
- DisplayPort: support eDP and aux-bus
- Fix coverity issues
- Fix potential memory leak if vmap() fail
mgag200:
- minor fixes
mxsfb:
- support disabling overlay planes
panfrost:
- fix sync in IRQ handling
ssd130x:
- Support per-controller default resolution plus DT bindings
- Reduce memory-allocation overhead
- Improve intermediate buffer size computation
- Fix allocation of temporary buffers
- Fix pitch computation
- Fix shadow plane allocation
tegra:
- use fbdev DMA helpers
- Convert to devm_platform_ioremap_resource()
- support bridge/connector
- enable PM
tidss:
- Support TI AM625 plus DT bindings
- Implement new connector model plus driver updates
vkms:
- improve write back support
- docs fixes
- support gamma LUT
zynqmp-dpsub:
- misc fixes"
* tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm: (1327 commits)
drm/gpuva_mgr: remove unused prev pointer in __drm_gpuva_sm_map()
drm/tests/drm_kunit_helpers: Place correct function name in the comment header
drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly
drm/nouveau: uvmm: fix unset region pointer on remap
drm/nouveau: sched: avoid job races between entities
drm/i915: Fix HPD polling, reenabling the output poll work as needed
drm: Add an HPD poll helper to reschedule the poll work
drm/i915: Fix TLB-Invalidation seqno store
drm/ttm/tests: Fix type conversion in ttm_pool_test
drm/msm/a6xx: Bail out early if setting GPU OOB fails
drm/msm/a6xx: Move LLC accessors to the common header
drm/msm/a6xx: Introduce a6xx_llc_read
drm/ttm/tests: Require MMU when testing
drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock
Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0""
drm/amdgpu: Add memory vendor information
drm/amd: flush any delayed gfxoff on suspend entry
drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix
drm/amdgpu: Remove gfxoff check in GFX v9.4.3
drm/amd/pm: Update pci link speed for smu v13.0.6
...
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 247 |
1 files changed, 118 insertions, 129 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c index 5536d17306d0..20cfc5be21a4 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c @@ -39,10 +39,10 @@ static bool lp_write_i2c(void *handle, uint32_t address, const uint8_t *data, uint32_t size) { - struct dc_link *link = handle; struct i2c_payload i2c_payloads[] = {{true, address, size, (void *)data} }; - struct i2c_command cmd = {i2c_payloads, 1, I2C_COMMAND_ENGINE_HW, link->dc->caps.i2c_speed_in_khz}; + struct i2c_command cmd = {i2c_payloads, 1, I2C_COMMAND_ENGINE_HW, + link->dc->caps.i2c_speed_in_khz}; return dm_helpers_submit_i2c(link->ctx, link, &cmd); } @@ -52,8 +52,10 @@ lp_read_i2c(void *handle, uint32_t address, uint8_t offset, uint8_t *data, uint3 { struct dc_link *link = handle; - struct i2c_payload i2c_payloads[] = {{true, address, 1, &offset}, {false, address, size, data} }; - struct i2c_command cmd = {i2c_payloads, 2, I2C_COMMAND_ENGINE_HW, link->dc->caps.i2c_speed_in_khz}; + struct i2c_payload i2c_payloads[] = {{true, address, 1, &offset}, + {false, address, size, data} }; + struct i2c_command cmd = {i2c_payloads, 2, I2C_COMMAND_ENGINE_HW, + link->dc->caps.i2c_speed_in_khz}; return dm_helpers_submit_i2c(link->ctx, link, &cmd); } @@ -76,7 +78,6 @@ lp_read_dpcd(void *handle, uint32_t address, uint8_t *data, uint32_t size) static uint8_t *psp_get_srm(struct psp_context *psp, uint32_t *srm_version, uint32_t *srm_size) { - struct ta_hdcp_shared_memory *hdcp_cmd; if (!psp->hdcp_context.context.initialized) { @@ -96,13 +97,12 @@ static uint8_t *psp_get_srm(struct psp_context *psp, uint32_t *srm_version, uint *srm_version = hdcp_cmd->out_msg.hdcp_get_srm.srm_version; *srm_size = hdcp_cmd->out_msg.hdcp_get_srm.srm_buf_size; - return hdcp_cmd->out_msg.hdcp_get_srm.srm_buf; } -static int psp_set_srm(struct psp_context *psp, uint8_t *srm, uint32_t srm_size, uint32_t *srm_version) +static int psp_set_srm(struct psp_context *psp, + u8 *srm, uint32_t srm_size, uint32_t *srm_version) { - struct ta_hdcp_shared_memory *hdcp_cmd; if (!psp->hdcp_context.context.initialized) { @@ -119,7 +119,8 @@ static int psp_set_srm(struct psp_context *psp, uint8_t *srm, uint32_t srm_size, psp_hdcp_invoke(psp, hdcp_cmd->cmd_id); - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS || hdcp_cmd->out_msg.hdcp_set_srm.valid_signature != 1 || + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS || + hdcp_cmd->out_msg.hdcp_set_srm.valid_signature != 1 || hdcp_cmd->out_msg.hdcp_set_srm.srm_version == PSP_SRM_VERSION_MAX) return -EINVAL; @@ -150,7 +151,6 @@ static void process_output(struct hdcp_workqueue *hdcp_work) static void link_lock(struct hdcp_workqueue *work, bool lock) { - int i = 0; for (i = 0; i < work->max_link; i++) { @@ -160,66 +160,60 @@ static void link_lock(struct hdcp_workqueue *work, bool lock) mutex_unlock(&work[i].mutex); } } + void hdcp_update_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index, struct amdgpu_dm_connector *aconnector, - uint8_t content_type, + u8 content_type, bool enable_encryption) { struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; - struct mod_hdcp_display *display = &hdcp_work[link_index].display; - struct mod_hdcp_link *link = &hdcp_work[link_index].link; - struct mod_hdcp_display_query query; + struct mod_hdcp_link_adjustment link_adjust; + struct mod_hdcp_display_adjustment display_adjust; unsigned int conn_index = aconnector->base.index; mutex_lock(&hdcp_w->mutex); hdcp_w->aconnector[conn_index] = aconnector; - query.display = NULL; - mod_hdcp_query_display(&hdcp_w->hdcp, aconnector->base.index, &query); + memset(&link_adjust, 0, sizeof(link_adjust)); + memset(&display_adjust, 0, sizeof(display_adjust)); - if (query.display != NULL) { - memcpy(display, query.display, sizeof(struct mod_hdcp_display)); - mod_hdcp_remove_display(&hdcp_w->hdcp, aconnector->base.index, &hdcp_w->output); + if (enable_encryption) { + /* Explicitly set the saved SRM as sysfs call will be after we already enabled hdcp + * (s3 resume case) + */ + if (hdcp_work->srm_size > 0) + psp_set_srm(hdcp_work->hdcp.config.psp.handle, hdcp_work->srm, + hdcp_work->srm_size, + &hdcp_work->srm_version); - hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0; + display_adjust.disable = MOD_HDCP_DISPLAY_NOT_DISABLE; - if (enable_encryption) { - /* Explicitly set the saved SRM as sysfs call will be after we already enabled hdcp - * (s3 resume case) - */ - if (hdcp_work->srm_size > 0) - psp_set_srm(hdcp_work->hdcp.config.psp.handle, hdcp_work->srm, hdcp_work->srm_size, - &hdcp_work->srm_version); + link_adjust.auth_delay = 2; - display->adjust.disable = MOD_HDCP_DISPLAY_NOT_DISABLE; - if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) { - hdcp_w->link.adjust.hdcp1.disable = 0; - hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0; - } else if (content_type == DRM_MODE_HDCP_CONTENT_TYPE1) { - hdcp_w->link.adjust.hdcp1.disable = 1; - hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_1; - } - - schedule_delayed_work(&hdcp_w->property_validate_dwork, - msecs_to_jiffies(DRM_HDCP_CHECK_PERIOD_MS)); - } else { - display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION; - hdcp_w->encryption_status[conn_index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF; - cancel_delayed_work(&hdcp_w->property_validate_dwork); + if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) { + link_adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0; + } else if (content_type == DRM_MODE_HDCP_CONTENT_TYPE1) { + link_adjust.hdcp1.disable = 1; + link_adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_1; } - display->state = MOD_HDCP_DISPLAY_ACTIVE; + schedule_delayed_work(&hdcp_w->property_validate_dwork, + msecs_to_jiffies(DRM_HDCP_CHECK_PERIOD_MS)); + } else { + display_adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION; + hdcp_w->encryption_status[conn_index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF; + cancel_delayed_work(&hdcp_w->property_validate_dwork); } - mod_hdcp_add_display(&hdcp_w->hdcp, link, display, &hdcp_w->output); + mod_hdcp_update_display(&hdcp_w->hdcp, conn_index, &link_adjust, &display_adjust, &hdcp_w->output); process_output(hdcp_w); mutex_unlock(&hdcp_w->mutex); } static void hdcp_remove_display(struct hdcp_workqueue *hdcp_work, - unsigned int link_index, + unsigned int link_index, struct amdgpu_dm_connector *aconnector) { struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; @@ -238,7 +232,8 @@ static void hdcp_remove_display(struct hdcp_workqueue *hdcp_work, conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; DRM_DEBUG_DRIVER("[HDCP_DM] display %d, CP 2 -> 1, type %u, DPMS %u\n", - aconnector->base.index, conn_state->hdcp_content_type, aconnector->base.dpms); + aconnector->base.index, conn_state->hdcp_content_type, + aconnector->base.dpms); } mod_hdcp_remove_display(&hdcp_w->hdcp, aconnector->base.index, &hdcp_w->output); @@ -246,6 +241,7 @@ static void hdcp_remove_display(struct hdcp_workqueue *hdcp_work, process_output(hdcp_w); mutex_unlock(&hdcp_w->mutex); } + void hdcp_reset_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index) { struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; @@ -274,15 +270,12 @@ void hdcp_handle_cpirq(struct hdcp_workqueue *hdcp_work, unsigned int link_index schedule_work(&hdcp_w->cpirq_work); } - - - static void event_callback(struct work_struct *work) { struct hdcp_workqueue *hdcp_work; hdcp_work = container_of(to_delayed_work(work), struct hdcp_workqueue, - callback_dwork); + callback_dwork); mutex_lock(&hdcp_work->mutex); @@ -294,13 +287,12 @@ static void event_callback(struct work_struct *work) process_output(hdcp_work); mutex_unlock(&hdcp_work->mutex); - - } static void event_property_update(struct work_struct *work) { - struct hdcp_workqueue *hdcp_work = container_of(work, struct hdcp_workqueue, property_update_work); + struct hdcp_workqueue *hdcp_work = container_of(work, struct hdcp_workqueue, + property_update_work); struct amdgpu_dm_connector *aconnector = NULL; struct drm_device *dev; long ret; @@ -334,11 +326,10 @@ static void event_property_update(struct work_struct *work) mutex_lock(&hdcp_work->mutex); if (conn_state->commit) { - ret = wait_for_completion_interruptible_timeout( - &conn_state->commit->hw_done, 10 * HZ); + ret = wait_for_completion_interruptible_timeout(&conn_state->commit->hw_done, + 10 * HZ); if (ret == 0) { - DRM_ERROR( - "HDCP state unknown! Setting it to DESIRED"); + DRM_ERROR("HDCP state unknown! Setting it to DESIRED\n"); hdcp_work->encryption_status[conn_index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF; } @@ -349,24 +340,20 @@ static void event_property_update(struct work_struct *work) DRM_MODE_HDCP_CONTENT_TYPE0 && hdcp_work->encryption_status[conn_index] <= MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON) { - DRM_DEBUG_DRIVER("[HDCP_DM] DRM_MODE_CONTENT_PROTECTION_ENABLED\n"); - drm_hdcp_update_content_protection( - connector, - DRM_MODE_CONTENT_PROTECTION_ENABLED); + drm_hdcp_update_content_protection(connector, + DRM_MODE_CONTENT_PROTECTION_ENABLED); } else if (conn_state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE1 && hdcp_work->encryption_status[conn_index] == MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON) { - drm_hdcp_update_content_protection( - connector, - DRM_MODE_CONTENT_PROTECTION_ENABLED); + drm_hdcp_update_content_protection(connector, + DRM_MODE_CONTENT_PROTECTION_ENABLED); } } else { DRM_DEBUG_DRIVER("[HDCP_DM] DRM_MODE_CONTENT_PROTECTION_DESIRED\n"); - drm_hdcp_update_content_protection( - connector, DRM_MODE_CONTENT_PROTECTION_DESIRED); - + drm_hdcp_update_content_protection(connector, + DRM_MODE_CONTENT_PROTECTION_DESIRED); } mutex_unlock(&hdcp_work->mutex); drm_modeset_unlock(&dev->mode_config.connection_mutex); @@ -402,7 +389,7 @@ static void event_property_validate(struct work_struct *work) &query); DRM_DEBUG_DRIVER("[HDCP_DM] disp %d, connector->CP %u, (query, work): (%d, %d)\n", - aconnector->base.index, + aconnector->base.index, aconnector->base.state->content_protection, query.encryption_status, hdcp_work->encryption_status[conn_index]); @@ -410,7 +397,8 @@ static void event_property_validate(struct work_struct *work) if (query.encryption_status != hdcp_work->encryption_status[conn_index]) { DRM_DEBUG_DRIVER("[HDCP_DM] encryption_status change from %x to %x\n", - hdcp_work->encryption_status[conn_index], query.encryption_status); + hdcp_work->encryption_status[conn_index], + query.encryption_status); hdcp_work->encryption_status[conn_index] = query.encryption_status; @@ -429,7 +417,7 @@ static void event_watchdog_timer(struct work_struct *work) struct hdcp_workqueue *hdcp_work; hdcp_work = container_of(to_delayed_work(work), - struct hdcp_workqueue, + struct hdcp_workqueue, watchdog_timer_dwork); mutex_lock(&hdcp_work->mutex); @@ -443,7 +431,6 @@ static void event_watchdog_timer(struct work_struct *work) process_output(hdcp_work); mutex_unlock(&hdcp_work->mutex); - } static void event_cpirq(struct work_struct *work) @@ -459,10 +446,8 @@ static void event_cpirq(struct work_struct *work) process_output(hdcp_work); mutex_unlock(&hdcp_work->mutex); - } - void hdcp_destroy(struct kobject *kobj, struct hdcp_workqueue *hdcp_work) { int i = 0; @@ -478,10 +463,8 @@ void hdcp_destroy(struct kobject *kobj, struct hdcp_workqueue *hdcp_work) kfree(hdcp_work); } - static bool enable_assr(void *handle, struct dc_link *link) { - struct hdcp_workqueue *hdcp_work = handle; struct mod_hdcp hdcp = hdcp_work->hdcp; struct psp_context *psp = hdcp.config.psp.handle; @@ -499,7 +482,8 @@ static bool enable_assr(void *handle, struct dc_link *link) memset(dtm_cmd, 0, sizeof(struct ta_dtm_shared_memory)); dtm_cmd->cmd_id = TA_DTM_COMMAND__TOPOLOGY_ASSR_ENABLE; - dtm_cmd->dtm_in_message.topology_assr_enable.display_topology_dig_be_index = link->link_enc_hw_inst; + dtm_cmd->dtm_in_message.topology_assr_enable.display_topology_dig_be_index = + link->link_enc_hw_inst; dtm_cmd->dtm_status = TA_DTM_STATUS__GENERIC_FAILURE; psp_dtm_invoke(psp, dtm_cmd->cmd_id); @@ -521,7 +505,7 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) int link_index = aconnector->dc_link->link_index; struct mod_hdcp_display *display = &hdcp_work[link_index].display; struct mod_hdcp_link *link = &hdcp_work[link_index].link; - struct drm_connector_state *conn_state; + struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; struct dc_sink *sink = NULL; bool link_is_hdcp14 = false; @@ -541,7 +525,7 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) else if (aconnector->dc_em_sink) sink = aconnector->dc_em_sink; - if (sink != NULL) + if (sink) link->mode = mod_hdcp_signal_type_to_operation_mode(sink->sink_signal); display->controller = CONTROLLER_ID_D0 + config->otg_inst; @@ -564,19 +548,27 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION; link->adjust.auth_delay = 2; link->adjust.hdcp1.disable = 0; - conn_state = aconnector->base.state; + hdcp_w->encryption_status[display->index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF; DRM_DEBUG_DRIVER("[HDCP_DM] display %d, CP %d, type %d\n", aconnector->base.index, - (!!aconnector->base.state) ? aconnector->base.state->content_protection : -1, - (!!aconnector->base.state) ? aconnector->base.state->hdcp_content_type : -1); + (!!aconnector->base.state) ? + aconnector->base.state->content_protection : -1, + (!!aconnector->base.state) ? + aconnector->base.state->hdcp_content_type : -1); - if (conn_state) - hdcp_update_display(hdcp_work, link_index, aconnector, - conn_state->hdcp_content_type, false); -} + mutex_lock(&hdcp_w->mutex); + + mod_hdcp_add_display(&hdcp_w->hdcp, link, display, &hdcp_w->output); + process_output(hdcp_w); + mutex_unlock(&hdcp_w->mutex); -/* NOTE: From the usermodes prospective you only need to call write *ONCE*, the kernel +} + +/** + * DOC: Add sysfs interface for set/get srm + * + * NOTE: From the usermodes prospective you only need to call write *ONCE*, the kernel * will automatically call once or twice depending on the size * * call: "cat file > /sys/class/drm/card0/device/hdcp_srm" from usermode no matter what the size is @@ -587,23 +579,23 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) * sysfs interface doesn't tell us the size we will get so we are sending partial SRMs to psp and on * the last call we will send the full SRM. PSP will fail on every call before the last. * - * This means we don't know if the SRM is good until the last call. And because of this limitation we - * cannot throw errors early as it will stop the kernel from writing to sysfs + * This means we don't know if the SRM is good until the last call. And because of this + * limitation we cannot throw errors early as it will stop the kernel from writing to sysfs * * Example 1: - * Good SRM size = 5096 - * first call to write 4096 -> PSP fails - * Second call to write 1000 -> PSP Pass -> SRM is set + * Good SRM size = 5096 + * first call to write 4096 -> PSP fails + * Second call to write 1000 -> PSP Pass -> SRM is set * * Example 2: - * Bad SRM size = 4096 - * first call to write 4096 -> PSP fails (This is the same as above, but we don't know if this - * is the last call) + * Bad SRM size = 4096 + * first call to write 4096 -> PSP fails (This is the same as above, but we don't know if this + * is the last call) * * Solution?: - * 1: Parse the SRM? -> It is signed so we don't know the EOF - * 2: We can have another sysfs that passes the size before calling set. -> simpler solution - * below + * 1: Parse the SRM? -> It is signed so we don't know the EOF + * 2: We can have another sysfs that passes the size before calling set. -> simpler solution + * below * * Easy Solution: * Always call get after Set to verify if set was successful. @@ -612,20 +604,21 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) * +----------------------+ * PSP will only update its srm if its older than the one we are trying to load. * Always do set first than get. - * -if we try to "1. SET" a older version PSP will reject it and we can "2. GET" the newer - * version and save it + * -if we try to "1. SET" a older version PSP will reject it and we can "2. GET" the newer + * version and save it * - * -if we try to "1. SET" a newer version PSP will accept it and we can "2. GET" the - * same(newer) version back and save it + * -if we try to "1. SET" a newer version PSP will accept it and we can "2. GET" the + * same(newer) version back and save it * - * -if we try to "1. SET" a newer version and PSP rejects it. That means the format is - * incorrect/corrupted and we should correct our SRM by getting it from PSP + * -if we try to "1. SET" a newer version and PSP rejects it. That means the format is + * incorrect/corrupted and we should correct our SRM by getting it from PSP */ -static ssize_t srm_data_write(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buffer, +static ssize_t srm_data_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buffer, loff_t pos, size_t count) { struct hdcp_workqueue *work; - uint32_t srm_version = 0; + u32 srm_version = 0; work = container_of(bin_attr, struct hdcp_workqueue, attr); link_lock(work, true); @@ -639,19 +632,19 @@ static ssize_t srm_data_write(struct file *filp, struct kobject *kobj, struct bi work->srm_version = srm_version; } - link_lock(work, false); return count; } -static ssize_t srm_data_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buffer, +static ssize_t srm_data_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buffer, loff_t pos, size_t count) { struct hdcp_workqueue *work; - uint8_t *srm = NULL; - uint32_t srm_version; - uint32_t srm_size; + u8 *srm = NULL; + u32 srm_version; + u32 srm_size; size_t ret = count; work = container_of(bin_attr, struct hdcp_workqueue, attr); @@ -684,12 +677,12 @@ ret: /* From the hdcp spec (5.Renewability) SRM needs to be stored in a non-volatile memory. * * For example, - * if Application "A" sets the SRM (ver 2) and we reboot/suspend and later when Application "B" - * needs to use HDCP, the version in PSP should be SRM(ver 2). So SRM should be persistent - * across boot/reboots/suspend/resume/shutdown + * if Application "A" sets the SRM (ver 2) and we reboot/suspend and later when Application "B" + * needs to use HDCP, the version in PSP should be SRM(ver 2). So SRM should be persistent + * across boot/reboots/suspend/resume/shutdown * - * Currently when the system goes down (suspend/shutdown) the SRM is cleared from PSP. For HDCP we need - * to make the SRM persistent. + * Currently when the system goes down (suspend/shutdown) the SRM is cleared from PSP. For HDCP + * we need to make the SRM persistent. * * -PSP owns the checking of SRM but doesn't have the ability to store it in a non-volatile memory. * -The kernel cannot write to the file systems. @@ -699,8 +692,8 @@ ret: * * Usermode can read/write to/from PSP using the sysfs interface * For example: - * to save SRM from PSP to storage : cat /sys/class/drm/card0/device/hdcp_srm > srmfile - * to load from storage to PSP: cat srmfile > /sys/class/drm/card0/device/hdcp_srm + * to save SRM from PSP to storage : cat /sys/class/drm/card0/device/hdcp_srm > srmfile + * to load from storage to PSP: cat srmfile > /sys/class/drm/card0/device/hdcp_srm */ static const struct bin_attribute data_attr = { .attr = {.name = "hdcp_srm", .mode = 0664}, @@ -709,10 +702,9 @@ static const struct bin_attribute data_attr = { .read = srm_data_read, }; - -struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev, struct cp_psp *cp_psp, struct dc *dc) +struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev, + struct cp_psp *cp_psp, struct dc *dc) { - int max_caps = dc->caps.max_links; struct hdcp_workqueue *hdcp_work; int i = 0; @@ -721,14 +713,16 @@ struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev, struct if (ZERO_OR_NULL_PTR(hdcp_work)) return NULL; - hdcp_work->srm = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE, sizeof(*hdcp_work->srm), GFP_KERNEL); + hdcp_work->srm = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE, + sizeof(*hdcp_work->srm), GFP_KERNEL); - if (hdcp_work->srm == NULL) + if (!hdcp_work->srm) goto fail_alloc_context; - hdcp_work->srm_temp = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE, sizeof(*hdcp_work->srm_temp), GFP_KERNEL); + hdcp_work->srm_temp = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE, + sizeof(*hdcp_work->srm_temp), GFP_KERNEL); - if (hdcp_work->srm_temp == NULL) + if (!hdcp_work->srm_temp) goto fail_alloc_context; hdcp_work->max_link = max_caps; @@ -781,10 +775,5 @@ fail_alloc_context: kfree(hdcp_work); return NULL; - - - } - - |
