From: José Roberto de Souza Date: Sat, 26 Oct 2019 00:13:20 +0000 (-0700) Subject: drm/i915/display: Handle fused off HDCP X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=74393109a8c3965596f953a535c8fe7064201033;p=uclinux-h8%2Flinux.git drm/i915/display: Handle fused off HDCP HDCP could be fused off, so not all GEN9+ platforms will support it. Cc: Ville Syrjälä Cc: Martin Peres Reviewed-by: Ramalingam C Reviewed-by: Ville Syrjälä Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20191026001323.216052-2-jose.souza@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index e69fa34528df..f1f41ca8402b 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -922,7 +922,7 @@ static void intel_hdcp_prop_work(struct work_struct *work) bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port) { /* PORT E doesn't have HDCP, and PORT F is disabled */ - return INTEL_GEN(dev_priv) >= 9 && port < PORT_E; + return INTEL_INFO(dev_priv)->display.has_hdcp && port < PORT_E; } static int diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 04307e111f57..430da2d4082a 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -612,6 +612,7 @@ static const struct intel_device_info intel_cherryview_info = { .has_logical_ring_preemption = 1, \ .display.has_csr = 1, \ .has_gt_uc = 1, \ + .display.has_hdcp = 1, \ .display.has_ipc = 1, \ .ddb_size = 896 @@ -655,6 +656,7 @@ static const struct intel_device_info intel_skylake_gt4_info = { .display.has_ddi = 1, \ .has_fpga_dbg = 1, \ .display.has_fbc = 1, \ + .display.has_hdcp = 1, \ .display.has_psr = 1, \ .has_runtime_pm = 1, \ .display.has_csr = 1, \ diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 2ddeeb2c414d..d90adf02e0a5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7743,6 +7743,7 @@ enum { #define CNL_DDI_CLOCK_REG_ACCESS_ON (1 << 7) #define SKL_DFSM _MMIO(0x51000) +#define SKL_DFSM_DISPLAY_HDCP_DISABLE (1 << 25) #define SKL_DFSM_CDCLK_LIMIT_MASK (3 << 23) #define SKL_DFSM_CDCLK_LIMIT_675 (0 << 23) #define SKL_DFSM_CDCLK_LIMIT_540 (1 << 23) diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 85e480bdc673..e7dd6092c105 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -981,6 +981,9 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv) enabled_mask); else info->pipe_mask = enabled_mask; + + if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE) + info->display.has_hdcp = 0; } /* Initialize slice/subslice/EU info */ diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index 78a383f63957..64e4f1923c68 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -139,6 +139,7 @@ enum intel_ppgtt_type { func(has_dsb); \ func(has_fbc); \ func(has_gmch); \ + func(has_hdcp); \ func(has_hotplug); \ func(has_ipc); \ func(has_modular_fia); \