[PATCH v3 20/27] drm/amd/display: dce_transform: DCE6 Scaling Horizontal Filter Init
Mauro Rossi
issor.oruam at gmail.com
Thu Jul 16 21:22:44 UTC 2020
[Why]
DCE6 has specific SCL_HORZ_FILTER_INIT_{LUMA_RGB,CHROMA} registers
In DCE6 h_init_luma and h_init_chroma initialization is required
Some DCE6 specific SCL_{HORZ,VERT}_FILTER_CONTROL masks were not listed
[How]
Add the registers and masks in dce_transform.h
Add DCE6 specific struct sclh_ratios_inits in dce_transform.h
Add dce60_calculate_inits() function
Add dce60_program_scl_ratios_inits() function
Fix dce60_transform_set_scaler() function
Signed-off-by: Mauro Rossi <issor.oruam at gmail.com>
---
.../drm/amd/display/dc/dce/dce_transform.c | 73 +++++++++++++++++--
.../drm/amd/display/dc/dce/dce_transform.h | 28 +++++++
2 files changed, 96 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c
index 3303d01c1aae..51ad48e36a8a 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c
@@ -306,6 +306,37 @@ static void calculate_inits(
inits->v_init.fraction = dc_fixpt_u0d19(v_init) << 5;
}
+#if defined(CONFIG_DRM_AMD_DC_SI)
+static void dce60_calculate_inits(
+ struct dce_transform *xfm_dce,
+ const struct scaler_data *data,
+ struct sclh_ratios_inits *inits)
+{
+ struct fixed31_32 h_init;
+ struct fixed31_32 v_init;
+
+ inits->h_int_scale_ratio =
+ dc_fixpt_u2d19(data->ratios.horz) << 5;
+ inits->v_int_scale_ratio =
+ dc_fixpt_u2d19(data->ratios.vert) << 5;
+
+ /* DCE6 h_init_luma setting inspired by DCE110 */
+ inits->h_init_luma.integer = 1;
+
+ /* DCE6 h_init_chroma setting inspired by DCE110 */
+ inits->h_init_chroma.integer = 1;
+
+ v_init =
+ dc_fixpt_div_int(
+ dc_fixpt_add(
+ data->ratios.vert,
+ dc_fixpt_from_int(data->taps.v_taps + 1)),
+ 2);
+ inits->v_init.integer = dc_fixpt_floor(v_init);
+ inits->v_init.fraction = dc_fixpt_u0d19(v_init) << 5;
+}
+#endif
+
static void program_scl_ratios_inits(
struct dce_transform *xfm_dce,
struct scl_ratios_inits *inits)
@@ -328,6 +359,36 @@ static void program_scl_ratios_inits(
REG_WRITE(SCL_AUTOMATIC_MODE_CONTROL, 0);
}
+#if defined(CONFIG_DRM_AMD_DC_SI)
+static void dce60_program_scl_ratios_inits(
+ struct dce_transform *xfm_dce,
+ struct sclh_ratios_inits *inits)
+{
+
+ REG_SET(SCL_HORZ_FILTER_SCALE_RATIO, 0,
+ SCL_H_SCALE_RATIO, inits->h_int_scale_ratio);
+
+ REG_SET(SCL_VERT_FILTER_SCALE_RATIO, 0,
+ SCL_V_SCALE_RATIO, inits->v_int_scale_ratio);
+
+ /* DCE6 has SCL_HORZ_FILTER_INIT_RGB_LUMA register */
+ REG_SET_2(SCL_HORZ_FILTER_INIT_RGB_LUMA, 0,
+ SCL_H_INIT_INT_RGB_Y, inits->h_init_luma.integer,
+ SCL_H_INIT_FRAC_RGB_Y, inits->h_init_luma.fraction);
+
+ /* DCE6 has SCL_HORZ_FILTER_INIT_CHROMA register */
+ REG_SET_2(SCL_HORZ_FILTER_INIT_CHROMA, 0,
+ SCL_H_INIT_INT_CBCR, inits->h_init_chroma.integer,
+ SCL_H_INIT_FRAC_CBCR, inits->h_init_chroma.fraction);
+
+ REG_SET_2(SCL_VERT_FILTER_INIT, 0,
+ SCL_V_INIT_INT, inits->v_init.integer,
+ SCL_V_INIT_FRAC, inits->v_init.fraction);
+
+ REG_WRITE(SCL_AUTOMATIC_MODE_CONTROL, 0);
+}
+#endif
+
static const uint16_t *get_filter_coeffs_16p(int taps, struct fixed31_32 ratio)
{
if (taps == 4)
@@ -453,12 +514,14 @@ static void dce60_transform_set_scaler(
is_scaling_required = dce60_setup_scaling_configuration(xfm_dce, data);
if (is_scaling_required) {
- /* 3. Calculate and program ratio, filter initialization */
- struct scl_ratios_inits inits = { 0 };
+ /* 3. Calculate and program ratio, DCE6 filter initialization */
+ struct sclh_ratios_inits inits = { 0 };
- calculate_inits(xfm_dce, data, &inits);
+ /* DCE6 has specific calculate_inits() function */
+ dce60_calculate_inits(xfm_dce, data, &inits);
- program_scl_ratios_inits(xfm_dce, &inits);
+ /* DCE6 has specific program_scl_ratios_inits() function */
+ dce60_program_scl_ratios_inits(xfm_dce, &inits);
coeffs_v = get_filter_coeffs_16p(data->taps.v_taps, data->ratios.vert);
coeffs_h = get_filter_coeffs_16p(data->taps.h_taps, data->ratios.horz);
@@ -503,7 +566,7 @@ static void dce60_transform_set_scaler(
/* 6. Program the viewport */
program_viewport(xfm_dce, &data->viewport);
- /* DCE6 does not have bit to flip to new coefficient memory */
+ /* DCE6 has no SCL_COEF_UPDATE_COMPLETE bit to flip to new coefficient memory */
/* DCE6 DATA_FORMAT register does not support ALPHA_EN */
}
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h
index 95b28dadc8c5..cbce194ec7b8 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h
@@ -331,6 +331,14 @@
XFM_SF(VIEWPORT_SIZE, VIEWPORT_WIDTH, mask_sh), \
XFM_SF(SCL_HORZ_FILTER_SCALE_RATIO, SCL_H_SCALE_RATIO, mask_sh), \
XFM_SF(SCL_VERT_FILTER_SCALE_RATIO, SCL_V_SCALE_RATIO, mask_sh), \
+ XFM_SF(SCL_HORZ_FILTER_INIT_RGB_LUMA, SCL_H_INIT_INT_RGB_Y, mask_sh), \
+ XFM_SF(SCL_HORZ_FILTER_INIT_RGB_LUMA, SCL_H_INIT_FRAC_RGB_Y, mask_sh), \
+ XFM_SF(SCL_HORZ_FILTER_INIT_CHROMA, SCL_H_INIT_INT_CBCR, mask_sh), \
+ XFM_SF(SCL_HORZ_FILTER_INIT_CHROMA, SCL_H_INIT_FRAC_CBCR, mask_sh), \
+ XFM_SF(SCL_VERT_FILTER_INIT, SCL_V_INIT_INT, mask_sh), \
+ XFM_SF(SCL_VERT_FILTER_INIT, SCL_V_INIT_FRAC, mask_sh), \
+ XFM_SF(SCL_HORZ_FILTER_CONTROL, SCL_H_FILTER_PICK_NEAREST, mask_sh), \
+ XFM_SF(SCL_VERT_FILTER_CONTROL, SCL_V_FILTER_PICK_NEAREST, mask_sh), \
XFM_SF(DC_LB_MEMORY_SPLIT, DC_LB_MEMORY_CONFIG, mask_sh), \
XFM_SF(DC_LB_MEM_SIZE, DC_LB_MEM_SIZE, mask_sh)
#endif
@@ -497,6 +505,10 @@
type SCL_V_SCALE_RATIO; \
type SCL_H_INIT_INT; \
type SCL_H_INIT_FRAC; \
+ type SCL_H_INIT_INT_RGB_Y; \
+ type SCL_H_INIT_FRAC_RGB_Y; \
+ type SCL_H_INIT_INT_CBCR; \
+ type SCL_H_INIT_FRAC_CBCR; \
type SCL_V_INIT_INT; \
type SCL_V_INIT_FRAC; \
type DC_LB_MEMORY_CONFIG; \
@@ -505,6 +517,8 @@
type LB_MEMORY_SIZE; \
type SCL_V_2TAP_HARDCODE_COEF_EN; \
type SCL_H_2TAP_HARDCODE_COEF_EN; \
+ type SCL_V_FILTER_PICK_NEAREST; \
+ type SCL_H_FILTER_PICK_NEAREST; \
type SCL_COEF_UPDATE_COMPLETE; \
type ALPHA_EN
@@ -575,6 +589,10 @@ struct dce_transform_registers {
uint32_t SCL_HORZ_FILTER_SCALE_RATIO;
uint32_t SCL_VERT_FILTER_SCALE_RATIO;
uint32_t SCL_HORZ_FILTER_INIT;
+#if defined(CONFIG_DRM_AMD_DC_SI)
+ uint32_t SCL_HORZ_FILTER_INIT_RGB_LUMA;
+ uint32_t SCL_HORZ_FILTER_INIT_CHROMA;
+#endif
uint32_t SCL_VERT_FILTER_INIT;
uint32_t SCL_AUTOMATIC_MODE_CONTROL;
#if defined(CONFIG_DRM_AMD_DC_SI)
@@ -598,6 +616,16 @@ struct scl_ratios_inits {
struct init_int_and_frac v_init;
};
+#if defined(CONFIG_DRM_AMD_DC_SI)
+struct sclh_ratios_inits {
+ uint32_t h_int_scale_ratio;
+ uint32_t v_int_scale_ratio;
+ struct init_int_and_frac h_init_luma;
+ struct init_int_and_frac h_init_chroma;
+ struct init_int_and_frac v_init;
+};
+#endif
+
enum ram_filter_type {
FILTER_TYPE_RGB_Y_VERTICAL = 0, /* 0 - RGB/Y Vertical filter */
FILTER_TYPE_CBCR_VERTICAL = 1, /* 1 - CbCr Vertical filter */
--
2.25.1
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