[v10 08/12] drm/i915: Enable infoframes on GLK+ for HDR

Uma Shankar
2019-05-14T17:36:30Z

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

This patch enables infoframes on GLK+ to be
used to send HDR metadata to HDMI sink.

v2: Addressed Shashank's review comment.

v3: Addressed Shashank's review comment.

v4: Added Shashank's RB.

v5: Dropped hdr_metadata_change check while modeset, as per
Ville's suggestion.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 4 ++++
drivers/gpu/drm/i915/intel_hdmi.c | 19 +++++++++++++++----
2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index e97c47f..d3f5510 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4694,6 +4694,7 @@ enum {
#define VIDEO_DIP_FREQ_MASK (3 << 16)
/* HSW and later: */
#define DRM_DIP_ENABLE (1 << 28)
+#define VIDEO_DIP_ENABLE_DRM_GLK (1 << 28)
#define PSR_VSC_BIT_7_SET (1 << 27)
#define VSC_SELECT_MASK (0x3 << 25)
#define VSC_SELECT_SHIFT 25
@@ -8146,6 +8147,7 @@ enum {
#define _HSW_VIDEO_DIP_SPD_DATA_A 0x602A0
#define _HSW_VIDEO_DIP_GMP_DATA_A 0x602E0
#define _HSW_VIDEO_DIP_VSC_DATA_A 0x60320
+#define _GLK_VIDEO_DIP_DRM_DATA_A 0x60440
#define _HSW_VIDEO_DIP_AVI_ECC_A 0x60240
#define _HSW_VIDEO_DIP_VS_ECC_A 0x60280
#define _HSW_VIDEO_DIP_SPD_ECC_A 0x602C0
@@ -8159,6 +8161,7 @@ enum {
#define _HSW_VIDEO_DIP_SPD_DATA_B 0x612A0
#define _HSW_VIDEO_DIP_GMP_DATA_B 0x612E0
#define _HSW_VIDEO_DIP_VSC_DATA_B 0x61320
+#define _GLK_VIDEO_DIP_DRM_DATA_B 0x61440
#define _HSW_VIDEO_DIP_BVI_ECC_B 0x61240
#define _HSW_VIDEO_DIP_VS_ECC_B 0x61280
#define _HSW_VIDEO_DIP_SPD_ECC_B 0x612C0
@@ -8184,6 +8187,7 @@ enum {
#define HSW_TVIDEO_DIP_SPD_DATA(trans, i) _MMIO_TRANS2(trans, _HSW_VIDEO_DIP_SPD_DATA_A + (i) * 4)
#define HSW_TVIDEO_DIP_GMP_DATA(trans, i) _MMIO_TRANS2(trans, _HSW_VIDEO_DIP_GMP_DATA_A + (i) * 4)
#define HSW_TVIDEO_DIP_VSC_DATA(trans, i) _MMIO_TRANS2(trans, _HSW_VIDEO_DIP_VSC_DATA_A + (i) * 4)
+#define GLK_TVIDEO_DIP_DRM_DATA(trans, i) _MMIO_TRANS2(trans, _GLK_VIDEO_DIP_DRM_DATA_A + (i) * 4)
#define ICL_VIDEO_DIP_PPS_DATA(trans, i) _MMIO_TRANS2(trans, _ICL_VIDEO_DIP_PPS_DATA_A + (i) * 4)
#define ICL_VIDEO_DIP_PPS_ECC(trans, i) _MMIO_TRANS2(trans, _ICL_VIDEO_DIP_PPS_ECC_A + (i) * 4)

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index f49f949..b80406b 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -152,6 +152,8 @@ static u32 hsw_infoframe_enable(unsigned int type)
return VIDEO_DIP_ENABLE_SPD_HSW;
case HDMI_INFOFRAME_TYPE_VENDOR:
return VIDEO_DIP_ENABLE_VS_HSW;
+ case HDMI_INFOFRAME_TYPE_DRM:
+ return VIDEO_DIP_ENABLE_DRM_GLK;
default:
MISSING_CASE(type);
return 0;
@@ -177,6 +179,8 @@ static u32 hsw_infoframe_enable(unsigned int type)
return HSW_TVIDEO_DIP_SPD_DATA(cpu_transcoder, i);
case HDMI_INFOFRAME_TYPE_VENDOR:
return HSW_TVIDEO_DIP_VS_DATA(cpu_transcoder, i);
+ case HDMI_INFOFRAME_TYPE_DRM:
+ return GLK_TVIDEO_DIP_DRM_DATA(cpu_transcoder, i);
default:
MISSING_CASE(type);
return INVALID_MMIO_REG;
@@ -560,10 +564,16 @@ static u32 hsw_infoframes_enabled(struct intel_encoder *encoder,
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
u32 val = I915_READ(HSW_TVIDEO_DIP_CTL(pipe_config->cpu_transcoder));
+ u32 mask;

- return val & (VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
- VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
- VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW);
+ mask = (VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
+ VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
+ VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW);
+
+ if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
+ mask |= VIDEO_DIP_ENABLE_DRM_GLK;
+
+ return val & mask;
}

static const u8 infoframe_type_to_idx[] = {
@@ -1196,7 +1206,8 @@ static void hsw_set_infoframes(struct intel_encoder *encoder,

val &= ~(VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
- VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW);
+ VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW |
+ VIDEO_DIP_ENABLE_DRM_GLK);

if (!enable) {
I915_WRITE(reg, val);
--
1.9.1

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