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drm/i915: Prep for C8 palette readout

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Add the approproate c8_planes checks to make the LUT
code ready for C8 palette readout. Note we currently
lack the actual c8_planes readout, so this won't work
yet. But no harm in making the code somewhat more ready
for the day when we do get c8_planes readout.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221114153732.11773-14-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
This commit is contained in:
Ville Syrjälä 2022-11-14 17:37:25 +02:00
parent d2559299d3
commit 298ad1070c
1 changed files with 14 additions and 8 deletions
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22
drivers/gpu/drm/i915/display/intel_color.c
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@ -1801,7 +1801,7 @@ static int icl_color_check(struct intel_crtc_state *crtc_state)
static int i9xx_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
{
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return 0;
switch (crtc_state->gamma_mode) {
@ -1817,6 +1817,9 @@ static int i9xx_post_csc_lut_precision(const struct intel_crtc_state *crtc_state
static bool ilk_has_post_csc_lut(const struct intel_crtc_state *crtc_state)
{
if (crtc_state->c8_planes)
return true;
return crtc_state->gamma_enable &&
(crtc_state->csc_mode & CSC_POSITION_BEFORE_GAMMA) != 0;
}
@ -1847,7 +1850,7 @@ static int chv_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
static int glk_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
{
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return 0;
switch (crtc_state->gamma_mode) {
@ -1863,6 +1866,9 @@ static int glk_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
static bool icl_has_post_csc_lut(const struct intel_crtc_state *crtc_state)
{
if (crtc_state->c8_planes)
return true;
return crtc_state->gamma_mode & POST_CSC_GAMMA_ENABLE;
}
@ -2009,7 +2015,7 @@ static void i9xx_read_luts(struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return;
crtc_state->post_csc_lut = i9xx_read_lut_8(crtc);
@ -2049,7 +2055,7 @@ static void i965_read_luts(struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return;
if (crtc_state->gamma_mode == GAMMA_MODE_MODE_8BIT)
@ -2180,7 +2186,7 @@ static void ilk_read_luts(struct intel_crtc_state *crtc_state)
ilk_has_post_csc_lut(crtc_state) ?
&crtc_state->post_csc_lut : &crtc_state->pre_csc_lut;
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return;
switch (crtc_state->gamma_mode) {
@ -2240,7 +2246,7 @@ static void ivb_read_luts(struct intel_crtc_state *crtc_state)
ilk_has_post_csc_lut(crtc_state) ?
&crtc_state->post_csc_lut : &crtc_state->pre_csc_lut;
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return;
switch (crtc_state->gamma_mode) {
@ -2303,7 +2309,7 @@ static void bdw_read_luts(struct intel_crtc_state *crtc_state)
ilk_has_post_csc_lut(crtc_state) ?
&crtc_state->post_csc_lut : &crtc_state->pre_csc_lut;
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return;
switch (crtc_state->gamma_mode) {
@ -2372,7 +2378,7 @@ static void glk_read_luts(struct intel_crtc_state *crtc_state)
if (crtc_state->csc_enable)
crtc_state->pre_csc_lut = glk_read_degamma_lut(crtc);
if (!crtc_state->gamma_enable)
if (!crtc_state->gamma_enable && !crtc_state->c8_planes)
return;
switch (crtc_state->gamma_mode) {