diff options
Diffstat (limited to 'drivers/gpu/drm/xe/display/xe_hdcp_gsc.c')
| -rw-r--r-- | drivers/gpu/drm/xe/display/xe_hdcp_gsc.c | 135 |
1 files changed, 44 insertions, 91 deletions
diff --git a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c index 6619a40aed15..b35a6f201d4a 100644 --- a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c +++ b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c @@ -9,7 +9,6 @@ #include "abi/gsc_command_header_abi.h" #include "intel_hdcp_gsc.h" -#include "intel_hdcp_gsc_message.h" #include "xe_bo.h" #include "xe_device.h" #include "xe_device_types.h" @@ -22,7 +21,8 @@ #define HECI_MEADDRESS_HDCP 18 -struct intel_hdcp_gsc_message { +struct intel_hdcp_gsc_context { + struct xe_device *xe; struct xe_bo *hdcp_bo; u64 hdcp_cmd_in; u64 hdcp_cmd_out; @@ -30,26 +30,24 @@ struct intel_hdcp_gsc_message { #define HDCP_GSC_HEADER_SIZE sizeof(struct intel_gsc_mtl_header) -bool intel_hdcp_gsc_cs_required(struct xe_device *xe) -{ - return DISPLAY_VER(xe) >= 14; -} - -bool intel_hdcp_gsc_check_status(struct xe_device *xe) +bool intel_hdcp_gsc_check_status(struct drm_device *drm) { + struct xe_device *xe = to_xe_device(drm); struct xe_tile *tile = xe_device_get_root_tile(xe); struct xe_gt *gt = tile->media_gt; struct xe_gsc *gsc = >->uc.gsc; bool ret = true; + unsigned int fw_ref; - if (!gsc && !xe_uc_fw_is_enabled(&gsc->fw)) { + if (!gsc || !xe_uc_fw_is_enabled(&gsc->fw)) { drm_dbg_kms(&xe->drm, "GSC Components not ready for HDCP2.x\n"); return false; } xe_pm_runtime_get(xe); - if (xe_force_wake_get(gt_to_fw(gt), XE_FW_GSC)) { + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GSC); + if (!fw_ref) { drm_dbg_kms(&xe->drm, "failed to get forcewake to check proxy status\n"); ret = false; @@ -59,7 +57,7 @@ bool intel_hdcp_gsc_check_status(struct xe_device *xe) if (!xe_gsc_proxy_init_done(gsc)) ret = false; - xe_force_wake_put(gt_to_fw(gt), XE_FW_GSC); + xe_force_wake_put(gt_to_fw(gt), fw_ref); out: xe_pm_runtime_put(xe); return ret; @@ -67,7 +65,7 @@ out: /*This function helps allocate memory for the command that we will send to gsc cs */ static int intel_hdcp_gsc_initialize_message(struct xe_device *xe, - struct intel_hdcp_gsc_message *hdcp_message) + struct intel_hdcp_gsc_context *gsc_context) { struct xe_bo *bo = NULL; u64 cmd_in, cmd_out; @@ -89,104 +87,60 @@ static int intel_hdcp_gsc_initialize_message(struct xe_device *xe, cmd_out = cmd_in + PAGE_SIZE; xe_map_memset(xe, &bo->vmap, 0, 0, bo->size); - hdcp_message->hdcp_bo = bo; - hdcp_message->hdcp_cmd_in = cmd_in; - hdcp_message->hdcp_cmd_out = cmd_out; + gsc_context->hdcp_bo = bo; + gsc_context->hdcp_cmd_in = cmd_in; + gsc_context->hdcp_cmd_out = cmd_out; + gsc_context->xe = xe; + out: return ret; } -static int intel_hdcp_gsc_hdcp2_init(struct xe_device *xe) +struct intel_hdcp_gsc_context *intel_hdcp_gsc_context_alloc(struct drm_device *drm) { - struct intel_hdcp_gsc_message *hdcp_message; + struct xe_device *xe = to_xe_device(drm); + struct intel_hdcp_gsc_context *gsc_context; int ret; - hdcp_message = kzalloc(sizeof(*hdcp_message), GFP_KERNEL); - - if (!hdcp_message) - return -ENOMEM; + gsc_context = kzalloc(sizeof(*gsc_context), GFP_KERNEL); + if (!gsc_context) + return ERR_PTR(-ENOMEM); /* * NOTE: No need to lock the comp mutex here as it is already * going to be taken before this function called */ - ret = intel_hdcp_gsc_initialize_message(xe, hdcp_message); + ret = intel_hdcp_gsc_initialize_message(xe, gsc_context); if (ret) { - drm_err(&xe->drm, "Could not initialize hdcp_message\n"); - kfree(hdcp_message); - return ret; + drm_err(&xe->drm, "Could not initialize gsc_context\n"); + kfree(gsc_context); + gsc_context = ERR_PTR(ret); } - xe->display.hdcp.hdcp_message = hdcp_message; - return ret; -} - -static const struct i915_hdcp_ops gsc_hdcp_ops = { - .initiate_hdcp2_session = intel_hdcp_gsc_initiate_session, - .verify_receiver_cert_prepare_km = - intel_hdcp_gsc_verify_receiver_cert_prepare_km, - .verify_hprime = intel_hdcp_gsc_verify_hprime, - .store_pairing_info = intel_hdcp_gsc_store_pairing_info, - .initiate_locality_check = intel_hdcp_gsc_initiate_locality_check, - .verify_lprime = intel_hdcp_gsc_verify_lprime, - .get_session_key = intel_hdcp_gsc_get_session_key, - .repeater_check_flow_prepare_ack = - intel_hdcp_gsc_repeater_check_flow_prepare_ack, - .verify_mprime = intel_hdcp_gsc_verify_mprime, - .enable_hdcp_authentication = intel_hdcp_gsc_enable_authentication, - .close_hdcp_session = intel_hdcp_gsc_close_session, -}; - -int intel_hdcp_gsc_init(struct xe_device *xe) -{ - struct i915_hdcp_arbiter *data; - int ret; - - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - mutex_lock(&xe->display.hdcp.hdcp_mutex); - xe->display.hdcp.arbiter = data; - xe->display.hdcp.arbiter->hdcp_dev = xe->drm.dev; - xe->display.hdcp.arbiter->ops = &gsc_hdcp_ops; - ret = intel_hdcp_gsc_hdcp2_init(xe); - if (ret) - kfree(data); - - mutex_unlock(&xe->display.hdcp.hdcp_mutex); - - return ret; + return gsc_context; } -void intel_hdcp_gsc_fini(struct xe_device *xe) +void intel_hdcp_gsc_context_free(struct intel_hdcp_gsc_context *gsc_context) { - struct intel_hdcp_gsc_message *hdcp_message = - xe->display.hdcp.hdcp_message; - struct i915_hdcp_arbiter *arb = xe->display.hdcp.arbiter; - - if (hdcp_message) { - xe_bo_unpin_map_no_vm(hdcp_message->hdcp_bo); - kfree(hdcp_message); - xe->display.hdcp.hdcp_message = NULL; - } + if (!gsc_context) + return; - kfree(arb); - xe->display.hdcp.arbiter = NULL; + xe_bo_unpin_map_no_vm(gsc_context->hdcp_bo); + kfree(gsc_context); } static int xe_gsc_send_sync(struct xe_device *xe, - struct intel_hdcp_gsc_message *hdcp_message, + struct intel_hdcp_gsc_context *gsc_context, u32 msg_size_in, u32 msg_size_out, u32 addr_out_off) { - struct xe_gt *gt = hdcp_message->hdcp_bo->tile->media_gt; - struct iosys_map *map = &hdcp_message->hdcp_bo->vmap; + struct xe_gt *gt = gsc_context->hdcp_bo->tile->media_gt; + struct iosys_map *map = &gsc_context->hdcp_bo->vmap; struct xe_gsc *gsc = >->uc.gsc; int ret; - ret = xe_gsc_pkt_submit_kernel(gsc, hdcp_message->hdcp_cmd_in, msg_size_in, - hdcp_message->hdcp_cmd_out, msg_size_out); + ret = xe_gsc_pkt_submit_kernel(gsc, gsc_context->hdcp_cmd_in, msg_size_in, + gsc_context->hdcp_cmd_out, msg_size_out); if (ret) { drm_err(&xe->drm, "failed to send gsc HDCP msg (%d)\n", ret); return ret; @@ -201,12 +155,12 @@ static int xe_gsc_send_sync(struct xe_device *xe, return ret; } -ssize_t intel_hdcp_gsc_msg_send(struct xe_device *xe, u8 *msg_in, - size_t msg_in_len, u8 *msg_out, - size_t msg_out_len) +ssize_t intel_hdcp_gsc_msg_send(struct intel_hdcp_gsc_context *gsc_context, + void *msg_in, size_t msg_in_len, + void *msg_out, size_t msg_out_len) { + struct xe_device *xe = gsc_context->xe; const size_t max_msg_size = PAGE_SIZE - HDCP_GSC_HEADER_SIZE; - struct intel_hdcp_gsc_message *hdcp_message; u64 host_session_id; u32 msg_size_in, msg_size_out; u32 addr_out_off, addr_in_wr_off = 0; @@ -219,15 +173,14 @@ ssize_t intel_hdcp_gsc_msg_send(struct xe_device *xe, u8 *msg_in, msg_size_in = msg_in_len + HDCP_GSC_HEADER_SIZE; msg_size_out = msg_out_len + HDCP_GSC_HEADER_SIZE; - hdcp_message = xe->display.hdcp.hdcp_message; addr_out_off = PAGE_SIZE; host_session_id = xe_gsc_create_host_session_id(); xe_pm_runtime_get_noresume(xe); - addr_in_wr_off = xe_gsc_emit_header(xe, &hdcp_message->hdcp_bo->vmap, + addr_in_wr_off = xe_gsc_emit_header(xe, &gsc_context->hdcp_bo->vmap, addr_in_wr_off, HECI_MEADDRESS_HDCP, host_session_id, msg_in_len); - xe_map_memcpy_to(xe, &hdcp_message->hdcp_bo->vmap, addr_in_wr_off, + xe_map_memcpy_to(xe, &gsc_context->hdcp_bo->vmap, addr_in_wr_off, msg_in, msg_in_len); /* * Keep sending request in case the pending bit is set no need to add @@ -236,7 +189,7 @@ ssize_t intel_hdcp_gsc_msg_send(struct xe_device *xe, u8 *msg_in, * 20 times each message 50 ms apart */ do { - ret = xe_gsc_send_sync(xe, hdcp_message, msg_size_in, msg_size_out, + ret = xe_gsc_send_sync(xe, gsc_context, msg_size_in, msg_size_out, addr_out_off); /* Only try again if gsc says so */ @@ -250,7 +203,7 @@ ssize_t intel_hdcp_gsc_msg_send(struct xe_device *xe, u8 *msg_in, if (ret) goto out; - xe_map_memcpy_from(xe, msg_out, &hdcp_message->hdcp_bo->vmap, + xe_map_memcpy_from(xe, msg_out, &gsc_context->hdcp_bo->vmap, addr_out_off + HDCP_GSC_HEADER_SIZE, msg_out_len); |