From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 14 Feb 2018 21:23:25 +0200
Subject: drm/i915: Add support for the YCbCr COLOR_ENCODING property
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Git-commit: b0f5c0badc5b54cc6308f21a65f6ebf69087d557
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Add support for the COLOR_ENCODING plane property which selects
the matrix coefficients used for the YCbCr->RGB conversion. Our
hardware can generally handle BT.601 and BT.709.
CHV pipe B sprites have a fully programmable matrix, so in theory
we could handle anything, but it doesn't seem all that useful to
expose anything beyond BT.601 and BT.709 at this time.
GLK can supposedly do BT.2020, but let's leave enabling that for
the future as well.
v2: Rename bit defines to match the spec more closely (Shashank)
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214192327.3250-7-ville.syrjala@linux.intel.com
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/i915/i915_reg.h | 5 ++
drivers/gpu/drm/i915/intel_display.c | 19 +++++++++-
drivers/gpu/drm/i915/intel_sprite.c | 61 ++++++++++++++++++++++++++---------
3 files changed, 67 insertions(+), 18 deletions(-)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6113,6 +6113,7 @@ enum {
#define DVS_PIPE_CSC_ENABLE (1<<24)
#define DVS_SOURCE_KEY (1<<22)
#define DVS_RGB_ORDER_XBGR (1<<20)
+#define DVS_YUV_FORMAT_BT709 (1<<18)
#define DVS_YUV_BYTE_ORDER_MASK (3<<16)
#define DVS_YUV_ORDER_YUYV (0<<16)
#define DVS_YUV_ORDER_UYVY (1<<16)
@@ -6183,7 +6184,7 @@ enum {
#define SPRITE_SOURCE_KEY (1<<22)
#define SPRITE_RGB_ORDER_RGBX (1<<20) /* only for 888 and 161616 */
#define SPRITE_YUV_TO_RGB_CSC_DISABLE (1<<19)
-#define SPRITE_YUV_CSC_FORMAT_BT709 (1<<18) /* 0 is BT601 */
+#define SPRITE_YUV_TO_RGB_CSC_FORMAT_BT709 (1<<18) /* 0 is BT601 */
#define SPRITE_YUV_BYTE_ORDER_MASK (3<<16)
#define SPRITE_YUV_ORDER_YUYV (0<<16)
#define SPRITE_YUV_ORDER_UYVY (1<<16)
@@ -6259,6 +6260,7 @@ enum {
#define SP_FORMAT_RGBA8888 (0xf<<26)
#define SP_ALPHA_PREMULTIPLY (1<<23) /* CHV pipe B */
#define SP_SOURCE_KEY (1<<22)
+#define SP_YUV_FORMAT_BT709 (1<<18)
#define SP_YUV_BYTE_ORDER_MASK (3<<16)
#define SP_YUV_ORDER_YUYV (0<<16)
#define SP_YUV_ORDER_UYVY (1<<16)
@@ -6383,6 +6385,7 @@ enum {
#define PLANE_CTL_KEY_ENABLE_DESTINATION ( 2 << 21)
#define PLANE_CTL_ORDER_BGRX (0 << 20)
#define PLANE_CTL_ORDER_RGBX (1 << 20)
+#define PLANE_CTL_YUV_TO_RGB_CSC_FORMAT_BT709 (1 << 18)
#define PLANE_CTL_YUV422_ORDER_MASK (0x3 << 16)
#define PLANE_CTL_YUV422_YUYV ( 0 << 16)
#define PLANE_CTL_YUV422_UYVY ( 1 << 16)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3536,6 +3536,9 @@ u32 skl_plane_ctl(const struct intel_crt
PLANE_CTL_PIPE_GAMMA_ENABLE |
PLANE_CTL_PIPE_CSC_ENABLE |
PLANE_CTL_PLANE_GAMMA_DISABLE;
+
+ if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709)
+ plane_ctl |= PLANE_CTL_YUV_TO_RGB_CSC_FORMAT_BT709;
}
plane_ctl |= skl_plane_ctl_format(fb->format->format);
@@ -3565,8 +3568,12 @@ u32 glk_plane_color_ctl(const struct int
plane_color_ctl |= PLANE_COLOR_PLANE_GAMMA_DISABLE;
plane_color_ctl |= glk_plane_color_ctl_alpha(fb->format->format);
- if (intel_format_is_yuv(fb->format->format))
- plane_color_ctl |= PLANE_COLOR_CSC_MODE_YUV601_TO_RGB709;
+ if (intel_format_is_yuv(fb->format->format)) {
+ if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709)
+ plane_color_ctl |= PLANE_COLOR_CSC_MODE_YUV709_TO_RGB709;
+ else
+ plane_color_ctl |= PLANE_COLOR_CSC_MODE_YUV601_TO_RGB709;
+ }
return plane_color_ctl;
}
@@ -13289,6 +13296,14 @@ intel_primary_plane_create(struct drm_i9
DRM_MODE_ROTATE_0,
supported_rotations);
+ if (INTEL_GEN(dev_priv) >= 9)
+ drm_plane_create_color_properties(&primary->base,
+ BIT(DRM_COLOR_YCBCR_BT601) |
+ BIT(DRM_COLOR_YCBCR_BT709),
+ BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
+ DRM_COLOR_YCBCR_BT601,
+ DRM_COLOR_YCBCR_LIMITED_RANGE);
+
drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
return primary;
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -352,30 +352,45 @@ chv_update_csc(const struct intel_plane_
struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
const struct drm_framebuffer *fb = plane_state->base.fb;
enum plane_id plane_id = plane->id;
+ /*
+ * |r| | c0 c1 c2 | |cr|
+ * |g| = | c3 c4 c5 | x |y |
+ * |b| | c6 c7 c8 | |cb|
+ *
+ * Coefficients are s3.12.
+ *
+ * Cb and Cr apparently come in as signed already, and
+ * we always get full range data in on account of CLRC0/1.
+ */
+ static const s16 csc_matrix[][9] = {
+ /* BT.601 full range YCbCr -> full range RGB */
+ [DRM_COLOR_YCBCR_BT601] = {
+ 5743, 4096, 0,
+ -2925, 4096, -1410,
+ 0, 4096, 7258,
+ },
+ /* BT.709 full range YCbCr -> full range RGB */
+ [DRM_COLOR_YCBCR_BT709] = {
+ 6450, 4096, 0,
+ -1917, 4096, -767,
+ 0, 4096, 7601,
+ },
+ };
+ const s16 *csc = csc_matrix[plane_state->base.color_encoding];
/* Seems RGB data bypasses the CSC always */
if (!intel_format_is_yuv(fb->format->format))
return;
- /*
- * BT.601 full range YCbCr -> full range RGB
- *
- * |r| | 5743 4096 0| |cr|
- * |g| = |-2925 4096 -1410| x |y |
- * |b| | 0 4096 7258| |cb|
- *
- * Cb and Cr apparently come in as signed already,
- * and we get full range data in on account of CLRC0/1
- */
I915_WRITE_FW(SPCSCYGOFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0));
I915_WRITE_FW(SPCSCCBOFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0));
I915_WRITE_FW(SPCSCCROFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0));
- I915_WRITE_FW(SPCSCC01(plane_id), SPCSC_C1(4096) | SPCSC_C0(5743));
- I915_WRITE_FW(SPCSCC23(plane_id), SPCSC_C1(-2925) | SPCSC_C0(0));
- I915_WRITE_FW(SPCSCC45(plane_id), SPCSC_C1(-1410) | SPCSC_C0(4096));
- I915_WRITE_FW(SPCSCC67(plane_id), SPCSC_C1(4096) | SPCSC_C0(0));
- I915_WRITE_FW(SPCSCC8(plane_id), SPCSC_C0(7258));
+ I915_WRITE_FW(SPCSCC01(plane_id), SPCSC_C1(csc[1]) | SPCSC_C0(csc[0]));
+ I915_WRITE_FW(SPCSCC23(plane_id), SPCSC_C1(csc[3]) | SPCSC_C0(csc[2]));
+ I915_WRITE_FW(SPCSCC45(plane_id), SPCSC_C1(csc[5]) | SPCSC_C0(csc[4]));
+ I915_WRITE_FW(SPCSCC67(plane_id), SPCSC_C1(csc[7]) | SPCSC_C0(csc[6]));
+ I915_WRITE_FW(SPCSCC8(plane_id), SPCSC_C0(csc[8]));
I915_WRITE_FW(SPCSCYGICLAMP(plane_id), SPCSC_IMAX(1023) | SPCSC_IMIN(0));
I915_WRITE_FW(SPCSCCBICLAMP(plane_id), SPCSC_IMAX(512) | SPCSC_IMIN(-512));
@@ -476,6 +491,9 @@ static u32 vlv_sprite_ctl(const struct i
return 0;
}
+ if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709)
+ sprctl |= SP_YUV_FORMAT_BT709;
+
if (fb->modifier == I915_FORMAT_MOD_X_TILED)
sprctl |= SP_TILED;
@@ -629,6 +647,9 @@ static u32 ivb_sprite_ctl(const struct i
return 0;
}
+ if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709)
+ sprctl |= SPRITE_YUV_TO_RGB_CSC_FORMAT_BT709;
+
if (fb->modifier == I915_FORMAT_MOD_X_TILED)
sprctl |= SPRITE_TILED;
@@ -785,6 +806,9 @@ static u32 g4x_sprite_ctl(const struct i
return 0;
}
+ if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709)
+ dvscntr |= DVS_YUV_FORMAT_BT709;
+
if (fb->modifier == I915_FORMAT_MOD_X_TILED)
dvscntr |= DVS_TILED;
@@ -1501,6 +1525,13 @@ intel_sprite_plane_create(struct drm_i91
DRM_MODE_ROTATE_0,
supported_rotations);
+ drm_plane_create_color_properties(&intel_plane->base,
+ BIT(DRM_COLOR_YCBCR_BT601) |
+ BIT(DRM_COLOR_YCBCR_BT709),
+ BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
+ DRM_COLOR_YCBCR_BT601,
+ DRM_COLOR_YCBCR_LIMITED_RANGE);
+
drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
return intel_plane;