[PATCH v2 09/13] drm/i915: Track pipe csc enable in crtc state

Ville Syrjala
2019-02-05T16:09:23Z

Just like we did for pipe gamma, let's also track the pipe csc
state. The hardware only exists on ILK+, and currently we always
enable it on hsw+ and never on any other platforms. Just like
with pipe gamma, the primary plane control register is used
for the readout on pre-SKL, and the pipe bottom color register
on SKL+.

v2: Rebase

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 4 ++--
drivers/gpu/drm/i915/intel_color.c | 7 ++++++-
drivers/gpu/drm/i915/intel_display.c | 18 ++++++++++++++----
drivers/gpu/drm/i915/intel_drv.h | 3 +++
drivers/gpu/drm/i915/intel_sprite.c | 6 ++++--
5 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 41111a17e519..30b3c385e41b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6130,7 +6130,7 @@ enum {
#define MCURSOR_PIPE_SELECT_SHIFT 28
#define MCURSOR_PIPE_SELECT(pipe) ((pipe) << 28)
#define MCURSOR_GAMMA_ENABLE (1 << 26)
-#define MCURSOR_PIPE_CSC_ENABLE (1 << 24)
+#define MCURSOR_PIPE_CSC_ENABLE (1 << 24) /* ilk+ */
#define MCURSOR_ROTATE_180 (1 << 15)
#define MCURSOR_TRICKLE_FEED_DISABLE (1 << 14)
#define _CURABASE 0x70084
@@ -6185,7 +6185,7 @@ enum {
#define DISPPLANE_RGBA888 (0xf << 26)
#define DISPPLANE_STEREO_ENABLE (1 << 25)
#define DISPPLANE_STEREO_DISABLE 0
-#define DISPPLANE_PIPE_CSC_ENABLE (1 << 24)
+#define DISPPLANE_PIPE_CSC_ENABLE (1 << 24) /* ilk+ */
#define DISPPLANE_SEL_PIPE_SHIFT 24
#define DISPPLANE_SEL_PIPE_MASK (3 << DISPPLANE_SEL_PIPE_SHIFT)
#define DISPPLANE_SEL_PIPE(pipe) ((pipe) << DISPPLANE_SEL_PIPE_SHIFT)
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 8acc729925af..4e61cf4a911a 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -401,7 +401,8 @@ static void skl_color_commit(const struct intel_crtc_state *crtc_state)
*/
if (crtc_state->gamma_enable)
val |= SKL_BOTTOM_COLOR_GAMMA_ENABLE;
- val |= SKL_BOTTOM_COLOR_CSC_ENABLE;
+ if (crtc_state->csc_enable)
+ val |= SKL_BOTTOM_COLOR_CSC_ENABLE;
I915_WRITE(SKL_BOTTOM_COLOR(pipe), val);

I915_WRITE(GAMMA_MODE(crtc->pipe), crtc_state->gamma_mode);
@@ -668,6 +669,10 @@ int intel_color_check(struct intel_crtc_state *crtc_state)

crtc_state->gamma_enable = true;

+ if (INTEL_GEN(dev_priv) >= 9 ||
+ IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
+ crtc_state->csc_enable = true;
+
/* Always allow legacy gamma LUT with no further checking. */
if (crtc_state_is_legacy_gamma(crtc_state)) {
crtc_state->gamma_mode = GAMMA_MODE_MODE_8BIT;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ebf26c0e0a98..c802055d23a6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3224,7 +3224,7 @@ static u32 i9xx_plane_ctl_crtc(const struct intel_crtc_state *crtc_state)
if (crtc_state->gamma_enable)
dspcntr |= DISPPLANE_GAMMA_ENABLE;

- if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
+ if (crtc_state->csc_enable)
dspcntr |= DISPPLANE_PIPE_CSC_ENABLE;

if (INTEL_GEN(dev_priv) < 5)
@@ -3705,7 +3705,8 @@ u32 skl_plane_ctl_crtc(const struct intel_crtc_state *crtc_state)
if (crtc_state->gamma_enable)
plane_ctl |= PLANE_CTL_PIPE_GAMMA_ENABLE;

- plane_ctl |= PLANE_CTL_PIPE_CSC_ENABLE;
+ if (crtc_state->csc_enable)
+ plane_ctl |= PLANE_CTL_PIPE_CSC_ENABLE;

return plane_ctl;
}
@@ -3760,7 +3761,8 @@ u32 glk_plane_color_ctl_crtc(const struct intel_crtc_state *crtc_state)
if (crtc_state->gamma_enable)
plane_color_ctl |= PLANE_COLOR_PIPE_GAMMA_ENABLE;

- plane_color_ctl |= PLANE_COLOR_PIPE_CSC_ENABLE;
+ if (crtc_state->csc_enable)
+ plane_color_ctl |= PLANE_COLOR_PIPE_CSC_ENABLE;

return plane_color_ctl;
}
@@ -8090,6 +8092,10 @@ static void i9xx_get_pipe_color_config(struct intel_crtc_state *crtc_state)

if (tmp & DISPPLANE_GAMMA_ENABLE)
crtc_state->gamma_enable = true;
+
+ if (!HAS_GMCH_DISPLAY(dev_priv) &&
+ tmp & DISPPLANE_PIPE_CSC_ENABLE)
+ crtc_state->csc_enable = true;
}

static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
@@ -9861,6 +9867,9 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,

if (tmp & SKL_BOTTOM_COLOR_GAMMA_ENABLE)
pipe_config->gamma_enable = true;
+
+ if (tmp & SKL_BOTTOM_COLOR_CSC_ENABLE)
+ pipe_config->csc_enable = true;
} else {
i9xx_get_pipe_color_config(pipe_config);
}
@@ -10197,7 +10206,7 @@ static u32 i9xx_cursor_ctl_crtc(const struct intel_crtc_state *crtc_state)
if (crtc_state->gamma_enable)
cntl = MCURSOR_GAMMA_ENABLE;

- if (HAS_DDI(dev_priv))
+ if (crtc_state->csc_enable)
cntl |= MCURSOR_PIPE_CSC_ENABLE;

if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv))
@@ -12103,6 +12112,7 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,

PIPE_CONF_CHECK_X(gamma_mode);
PIPE_CONF_CHECK_BOOL(gamma_enable);
+ PIPE_CONF_CHECK_BOOL(csc_enable);

PIPE_CONF_CHECK_P(shared_dpll);
PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index f0db61471209..b3e3fa289aed 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -954,6 +954,9 @@ struct intel_crtc_state {
/* enable pipe gamma? */
bool gamma_enable;

+ /* enable pipe csc? */
+ bool csc_enable;
+
/* Display Stream compression state */
struct {
bool compression_enable;
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index db373e3ac601..610398607e8e 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -921,13 +921,12 @@ vlv_plane_get_hw_state(struct intel_plane *plane,

static u32 ivb_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
{
- struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
u32 sprctl = 0;

if (crtc_state->gamma_enable)
sprctl |= SPRITE_GAMMA_ENABLE;

- if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
+ if (crtc_state->csc_enable)
sprctl |= SPRITE_PIPE_CSC_ENABLE;

return sprctl;
@@ -1118,6 +1117,9 @@ static u32 g4x_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
if (crtc_state->gamma_enable)
dvscntr |= DVS_GAMMA_ENABLE;

+ if (crtc_state->csc_enable)
+ dvscntr |= DVS_PIPE_CSC_ENABLE;
+
return dvscntr;
}