@@ -305,6 +305,378 @@ void drm_dsc_set_rc_buf_thresh(struct drm_dsc_config *vdsc_cfg)
}
EXPORT_SYMBOL(drm_dsc_set_rc_buf_thresh);
+enum ROW_INDEX_BPP {
+ ROW_INDEX_6BPP = 0,
+ ROW_INDEX_8BPP,
+ ROW_INDEX_10BPP,
+ ROW_INDEX_12BPP,
+ ROW_INDEX_15BPP,
+ MAX_ROW_INDEX
+};
+
+enum COLUMN_INDEX_BPC {
+ COLUMN_INDEX_8BPC = 0,
+ COLUMN_INDEX_10BPC,
+ COLUMN_INDEX_12BPC,
+ COLUMN_INDEX_14BPC,
+ COLUMN_INDEX_16BPC,
+ MAX_COLUMN_INDEX
+};
+
+struct rc_parameters {
+ u16 initial_xmit_delay;
+ u8 first_line_bpg_offset;
+ u16 initial_offset;
+ u8 flatness_min_qp;
+ u8 flatness_max_qp;
+ u8 rc_quant_incr_limit0;
+ u8 rc_quant_incr_limit1;
+ struct drm_dsc_rc_range_parameters rc_range_params[DSC_NUM_BUF_RANGES];
+};
+
+/*
+ * Selected Rate Control Related Parameter Recommended Values
+ * from DSC_v1.11 spec & C Model release: DSC_model_20161212
+ */
+static const struct rc_parameters rc_parameters[][MAX_COLUMN_INDEX] = {
+ {
+ /* 6BPP/8BPC */
+ { 768, 15, 6144, 3, 13, 11, 11, {
+ { 0, 4, 0 }, { 1, 6, -2 }, { 3, 8, -2 }, { 4, 8, -4 },
+ { 5, 9, -6 }, { 5, 9, -6 }, { 6, 9, -6 }, { 6, 10, -8 },
+ { 7, 11, -8 }, { 8, 12, -10 }, { 9, 12, -10 }, { 10, 12, -12 },
+ { 10, 12, -12 }, { 11, 12, -12 }, { 13, 14, -12 }
+ }
+ },
+ /* 6BPP/10BPC */
+ { 768, 15, 6144, 7, 17, 15, 15, {
+ { 0, 8, 0 }, { 3, 10, -2 }, { 7, 12, -2 }, { 8, 12, -4 },
+ { 9, 13, -6 }, { 9, 13, -6 }, { 10, 13, -6 }, { 10, 14, -8 },
+ { 11, 15, -8 }, { 12, 16, -10 }, { 13, 16, -10 },
+ { 14, 16, -12 }, { 14, 16, -12 }, { 15, 16, -12 },
+ { 17, 18, -12 }
+ }
+ },
+ /* 6BPP/12BPC */
+ { 768, 15, 6144, 11, 21, 19, 19, {
+ { 0, 12, 0 }, { 5, 14, -2 }, { 11, 16, -2 }, { 12, 16, -4 },
+ { 13, 17, -6 }, { 13, 17, -6 }, { 14, 17, -6 }, { 14, 18, -8 },
+ { 15, 19, -8 }, { 16, 20, -10 }, { 17, 20, -10 },
+ { 18, 20, -12 }, { 18, 20, -12 }, { 19, 20, -12 },
+ { 21, 22, -12 }
+ }
+ },
+ /* 6BPP/14BPC */
+ { 768, 15, 6144, 15, 25, 23, 23, {
+ { 0, 16, 0 }, { 7, 18, -2 }, { 15, 20, -2 }, { 16, 20, -4 },
+ { 17, 21, -6 }, { 17, 21, -6 }, { 18, 21, -6 }, { 18, 22, -8 },
+ { 19, 23, -8 }, { 20, 24, -10 }, { 21, 24, -10 },
+ { 22, 24, -12 }, { 22, 24, -12 }, { 23, 24, -12 },
+ { 25, 26, -12 }
+ }
+ },
+ /* 6BPP/16BPC */
+ { 768, 15, 6144, 19, 29, 27, 27, {
+ { 0, 20, 0 }, { 9, 22, -2 }, { 19, 24, -2 }, { 20, 24, -4 },
+ { 21, 25, -6 }, { 21, 25, -6 }, { 22, 25, -6 }, { 22, 26, -8 },
+ { 23, 27, -8 }, { 24, 28, -10 }, { 25, 28, -10 },
+ { 26, 28, -12 }, { 26, 28, -12 }, { 27, 28, -12 },
+ { 29, 30, -12 }
+ }
+ },
+ },
+ {
+ /* 8BPP/8BPC */
+ { 512, 12, 6144, 3, 12, 11, 11, {
+ { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 },
+ { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
+ { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 },
+ { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 }
+ }
+ },
+ /* 8BPP/10BPC */
+ { 512, 12, 6144, 7, 16, 15, 15, {
+ /*
+ * DSC model/pre-SCR-cfg has 8 for range_max_qp[0], however
+ * VESA DSC 1.1 Table E-5 sets it to 4.
+ */
+ { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 },
+ { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
+ { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 },
+ { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 }
+ }
+ },
+ /* 8BPP/12BPC */
+ { 512, 12, 6144, 11, 20, 19, 19, {
+ { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 },
+ { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
+ { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 },
+ { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 },
+ { 21, 23, -12 }
+ }
+ },
+ /* 8BPP/14BPC */
+ { 512, 12, 6144, 15, 24, 23, 23, {
+ { 0, 12, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 },
+ { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
+ { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 },
+ { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 },
+ { 24, 25, -12 }
+ }
+ },
+ /* 8BPP/16BPC */
+ { 512, 12, 6144, 19, 28, 27, 27, {
+ { 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 },
+ { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
+ { 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 },
+ { 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 },
+ { 28, 29, -12 }
+ }
+ },
+ },
+ {
+ /* 10BPP/8BPC */
+ { 410, 15, 5632, 3, 12, 11, 11, {
+ { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 },
+ { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
+ { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 },
+ { 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 }
+ }
+ },
+ /* 10BPP/10BPC */
+ { 410, 15, 5632, 7, 16, 15, 15, {
+ { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 },
+ { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
+ { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 },
+ { 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 }
+ }
+ },
+ /* 10BPP/12BPC */
+ { 410, 15, 5632, 11, 20, 19, 19, {
+ { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 },
+ { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
+ { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 },
+ { 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 },
+ { 19, 20, -12 }
+ }
+ },
+ /* 10BPP/14BPC */
+ { 410, 15, 5632, 15, 24, 23, 23, {
+ { 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 },
+ { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
+ { 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 },
+ { 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 },
+ { 23, 24, -12 }
+ }
+ },
+ /* 10BPP/16BPC */
+ { 410, 15, 5632, 19, 28, 27, 27, {
+ { 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 },
+ { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
+ { 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 },
+ { 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 },
+ { 27, 28, -12 }
+ }
+ },
+ },
+ {
+ /* 12BPP/8BPC */
+ { 341, 15, 2048, 3, 12, 11, 11, {
+ { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 },
+ { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
+ { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 },
+ { 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 }
+ }
+ },
+ /* 12BPP/10BPC */
+ { 341, 15, 2048, 7, 16, 15, 15, {
+ { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 },
+ { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
+ { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 },
+ { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 }
+ }
+ },
+ /* 12BPP/12BPC */
+ { 341, 15, 2048, 11, 20, 19, 19, {
+ { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 },
+ { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
+ { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 },
+ { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 },
+ { 21, 23, -12 }
+ }
+ },
+ /* 12BPP/14BPC */
+ { 341, 15, 2048, 15, 24, 23, 23, {
+ { 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 },
+ { 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
+ { 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 },
+ { 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 },
+ { 22, 23, -12 }
+ }
+ },
+ /* 12BPP/16BPC */
+ { 341, 15, 2048, 19, 28, 27, 27, {
+ { 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 },
+ { 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
+ { 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 },
+ { 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 },
+ { 26, 27, -12 }
+ }
+ },
+ },
+ {
+ /* 15BPP/8BPC */
+ { 273, 15, 2048, 3, 12, 11, 11, {
+ { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 },
+ { 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 },
+ { 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 },
+ { 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 }
+ }
+ },
+ /* 15BPP/10BPC */
+ { 273, 15, 2048, 7, 16, 15, 15, {
+ { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 },
+ { 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 },
+ { 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 },
+ { 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 }
+ }
+ },
+ /* 15BPP/12BPC */
+ { 273, 15, 2048, 11, 20, 19, 19, {
+ { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 },
+ { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 },
+ { 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 },
+ { 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 },
+ { 16, 17, -12 }
+ }
+ },
+ /* 15BPP/14BPC */
+ { 273, 15, 2048, 15, 24, 23, 23, {
+ { 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 },
+ { 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 },
+ { 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 },
+ { 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 },
+ { 20, 21, -12 }
+ }
+ },
+ /* 15BPP/16BPC */
+ { 273, 15, 2048, 19, 28, 27, 27, {
+ { 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 },
+ { 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 },
+ { 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 },
+ { 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 },
+ { 24, 25, -12 }
+ }
+ }
+ }
+};
+
+static int get_row_index_for_rc_params(u16 compressed_bpp)
+{
+ switch (compressed_bpp) {
+ case 6:
+ return ROW_INDEX_6BPP;
+ case 8:
+ return ROW_INDEX_8BPP;
+ case 10:
+ return ROW_INDEX_10BPP;
+ case 12:
+ return ROW_INDEX_12BPP;
+ case 15:
+ return ROW_INDEX_15BPP;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int get_column_index_for_rc_params(u8 bits_per_component)
+{
+ switch (bits_per_component) {
+ case 8:
+ return COLUMN_INDEX_8BPC;
+ case 10:
+ return COLUMN_INDEX_10BPC;
+ case 12:
+ return COLUMN_INDEX_12BPC;
+ case 14:
+ return COLUMN_INDEX_14BPC;
+ case 16:
+ return COLUMN_INDEX_16BPC;
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct rc_parameters *get_rc_params(u16 compressed_bpp,
+ u8 bits_per_component)
+{
+ int row_index, column_index;
+
+ row_index = get_row_index_for_rc_params(compressed_bpp);
+ if (row_index < 0)
+ return NULL;
+
+ column_index = get_column_index_for_rc_params(bits_per_component);
+ if (column_index < 0)
+ return NULL;
+
+ return &rc_parameters[row_index][column_index];
+}
+
+/**
+ * drm_dsc_setup_rc_params() - Set parameters and limits for RC model in
+ * accordance with the DSC 1.1 or 1.2 specification and DSC C Model
+ * Required bits_per_pixel and bits_per_component to be set before calling this
+ * function.
+ *
+ * @vdsc_cfg: DSC Configuration data partially filled by driver
+ *
+ * Return: 0 or -error code in case of an error
+ */
+int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg)
+{
+ const struct rc_parameters *rc_params;
+ int i;
+
+ if (WARN_ON_ONCE(!vdsc_cfg->bits_per_pixel ||
+ !vdsc_cfg->bits_per_component))
+ return -EINVAL;
+
+ /* fractional BPP is not supported */
+ if (vdsc_cfg->bits_per_pixel & 0xf)
+ return -EINVAL;
+
+ rc_params = get_rc_params(vdsc_cfg->bits_per_pixel >> 4,
+ vdsc_cfg->bits_per_component);
+ if (!rc_params)
+ return -EINVAL;
+
+ vdsc_cfg->first_line_bpg_offset = rc_params->first_line_bpg_offset;
+ vdsc_cfg->initial_xmit_delay = rc_params->initial_xmit_delay;
+ vdsc_cfg->initial_offset = rc_params->initial_offset;
+ vdsc_cfg->flatness_min_qp = rc_params->flatness_min_qp;
+ vdsc_cfg->flatness_max_qp = rc_params->flatness_max_qp;
+ vdsc_cfg->rc_quant_incr_limit0 = rc_params->rc_quant_incr_limit0;
+ vdsc_cfg->rc_quant_incr_limit1 = rc_params->rc_quant_incr_limit1;
+
+ for (i = 0; i < DSC_NUM_BUF_RANGES; i++) {
+ vdsc_cfg->rc_range_params[i].range_min_qp =
+ rc_params->rc_range_params[i].range_min_qp;
+ vdsc_cfg->rc_range_params[i].range_max_qp =
+ rc_params->rc_range_params[i].range_max_qp;
+ /*
+ * Range BPG Offset uses 2's complement and is only a 6 bits. So
+ * mask it to get only 6 bits.
+ */
+ vdsc_cfg->rc_range_params[i].range_bpg_offset =
+ rc_params->rc_range_params[i].range_bpg_offset &
+ DSC_RANGE_BPG_OFFSET_MASK;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_dsc_setup_rc_params);
+
/**
* drm_dsc_compute_rc_parameters() - Write rate control
* parameters to the dsc configuration defined in
@@ -19,24 +19,6 @@
#include "intel_vdsc.h"
#include "intel_vdsc_regs.h"
-enum ROW_INDEX_BPP {
- ROW_INDEX_6BPP = 0,
- ROW_INDEX_8BPP,
- ROW_INDEX_10BPP,
- ROW_INDEX_12BPP,
- ROW_INDEX_15BPP,
- MAX_ROW_INDEX
-};
-
-enum COLUMN_INDEX_BPC {
- COLUMN_INDEX_8BPC = 0,
- COLUMN_INDEX_10BPC,
- COLUMN_INDEX_12BPC,
- COLUMN_INDEX_14BPC,
- COLUMN_INDEX_16BPC,
- MAX_COLUMN_INDEX
-};
-
struct rc_parameters {
u16 initial_xmit_delay;
u8 first_line_bpg_offset;
@@ -48,296 +30,6 @@ struct rc_parameters {
struct drm_dsc_rc_range_parameters rc_range_params[DSC_NUM_BUF_RANGES];
};
-/*
- * Selected Rate Control Related Parameter Recommended Values
- * from DSC_v1.11 spec & C Model release: DSC_model_20161212
- */
-static const struct rc_parameters rc_parameters[][MAX_COLUMN_INDEX] = {
-{
- /* 6BPP/8BPC */
- { 768, 15, 6144, 3, 13, 11, 11, {
- { 0, 4, 0 }, { 1, 6, -2 }, { 3, 8, -2 }, { 4, 8, -4 },
- { 5, 9, -6 }, { 5, 9, -6 }, { 6, 9, -6 }, { 6, 10, -8 },
- { 7, 11, -8 }, { 8, 12, -10 }, { 9, 12, -10 }, { 10, 12, -12 },
- { 10, 12, -12 }, { 11, 12, -12 }, { 13, 14, -12 }
- }
- },
- /* 6BPP/10BPC */
- { 768, 15, 6144, 7, 17, 15, 15, {
- { 0, 8, 0 }, { 3, 10, -2 }, { 7, 12, -2 }, { 8, 12, -4 },
- { 9, 13, -6 }, { 9, 13, -6 }, { 10, 13, -6 }, { 10, 14, -8 },
- { 11, 15, -8 }, { 12, 16, -10 }, { 13, 16, -10 },
- { 14, 16, -12 }, { 14, 16, -12 }, { 15, 16, -12 },
- { 17, 18, -12 }
- }
- },
- /* 6BPP/12BPC */
- { 768, 15, 6144, 11, 21, 19, 19, {
- { 0, 12, 0 }, { 5, 14, -2 }, { 11, 16, -2 }, { 12, 16, -4 },
- { 13, 17, -6 }, { 13, 17, -6 }, { 14, 17, -6 }, { 14, 18, -8 },
- { 15, 19, -8 }, { 16, 20, -10 }, { 17, 20, -10 },
- { 18, 20, -12 }, { 18, 20, -12 }, { 19, 20, -12 },
- { 21, 22, -12 }
- }
- },
- /* 6BPP/14BPC */
- { 768, 15, 6144, 15, 25, 23, 23, {
- { 0, 16, 0 }, { 7, 18, -2 }, { 15, 20, -2 }, { 16, 20, -4 },
- { 17, 21, -6 }, { 17, 21, -6 }, { 18, 21, -6 }, { 18, 22, -8 },
- { 19, 23, -8 }, { 20, 24, -10 }, { 21, 24, -10 },
- { 22, 24, -12 }, { 22, 24, -12 }, { 23, 24, -12 },
- { 25, 26, -12 }
- }
- },
- /* 6BPP/16BPC */
- { 768, 15, 6144, 19, 29, 27, 27, {
- { 0, 20, 0 }, { 9, 22, -2 }, { 19, 24, -2 }, { 20, 24, -4 },
- { 21, 25, -6 }, { 21, 25, -6 }, { 22, 25, -6 }, { 22, 26, -8 },
- { 23, 27, -8 }, { 24, 28, -10 }, { 25, 28, -10 },
- { 26, 28, -12 }, { 26, 28, -12 }, { 27, 28, -12 },
- { 29, 30, -12 }
- }
- },
-},
-{
- /* 8BPP/8BPC */
- { 512, 12, 6144, 3, 12, 11, 11, {
- { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 },
- { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
- { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 },
- { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 }
- }
- },
- /* 8BPP/10BPC */
- { 512, 12, 6144, 7, 16, 15, 15, {
- /*
- * DSC model/pre-SCR-cfg has 8 for range_max_qp[0], however
- * VESA DSC 1.1 Table E-5 sets it to 4.
- */
- { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 },
- { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
- { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 },
- { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 }
- }
- },
- /* 8BPP/12BPC */
- { 512, 12, 6144, 11, 20, 19, 19, {
- { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 },
- { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
- { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 },
- { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 },
- { 21, 23, -12 }
- }
- },
- /* 8BPP/14BPC */
- { 512, 12, 6144, 15, 24, 23, 23, {
- { 0, 12, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 },
- { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
- { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 },
- { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 },
- { 24, 25, -12 }
- }
- },
- /* 8BPP/16BPC */
- { 512, 12, 6144, 19, 28, 27, 27, {
- { 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 },
- { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
- { 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 },
- { 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 },
- { 28, 29, -12 }
- }
- },
-},
-{
- /* 10BPP/8BPC */
- { 410, 15, 5632, 3, 12, 11, 11, {
- { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 },
- { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
- { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 },
- { 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 }
- }
- },
- /* 10BPP/10BPC */
- { 410, 15, 5632, 7, 16, 15, 15, {
- { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 },
- { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
- { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 },
- { 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 }
- }
- },
- /* 10BPP/12BPC */
- { 410, 15, 5632, 11, 20, 19, 19, {
- { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 },
- { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
- { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 },
- { 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 },
- { 19, 20, -12 }
- }
- },
- /* 10BPP/14BPC */
- { 410, 15, 5632, 15, 24, 23, 23, {
- { 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 },
- { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
- { 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 },
- { 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 },
- { 23, 24, -12 }
- }
- },
- /* 10BPP/16BPC */
- { 410, 15, 5632, 19, 28, 27, 27, {
- { 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 },
- { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
- { 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 },
- { 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 },
- { 27, 28, -12 }
- }
- },
-},
-{
- /* 12BPP/8BPC */
- { 341, 15, 2048, 3, 12, 11, 11, {
- { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 },
- { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
- { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 },
- { 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 }
- }
- },
- /* 12BPP/10BPC */
- { 341, 15, 2048, 7, 16, 15, 15, {
- { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 },
- { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
- { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 },
- { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 }
- }
- },
- /* 12BPP/12BPC */
- { 341, 15, 2048, 11, 20, 19, 19, {
- { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 },
- { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
- { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 },
- { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 },
- { 21, 23, -12 }
- }
- },
- /* 12BPP/14BPC */
- { 341, 15, 2048, 15, 24, 23, 23, {
- { 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 },
- { 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
- { 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 },
- { 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 },
- { 22, 23, -12 }
- }
- },
- /* 12BPP/16BPC */
- { 341, 15, 2048, 19, 28, 27, 27, {
- { 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 },
- { 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
- { 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 },
- { 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 },
- { 26, 27, -12 }
- }
- },
-},
-{
- /* 15BPP/8BPC */
- { 273, 15, 2048, 3, 12, 11, 11, {
- { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 },
- { 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 },
- { 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 },
- { 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 }
- }
- },
- /* 15BPP/10BPC */
- { 273, 15, 2048, 7, 16, 15, 15, {
- { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 },
- { 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 },
- { 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 },
- { 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 }
- }
- },
- /* 15BPP/12BPC */
- { 273, 15, 2048, 11, 20, 19, 19, {
- { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 },
- { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 },
- { 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 },
- { 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 },
- { 16, 17, -12 }
- }
- },
- /* 15BPP/14BPC */
- { 273, 15, 2048, 15, 24, 23, 23, {
- { 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 },
- { 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 },
- { 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 },
- { 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 },
- { 20, 21, -12 }
- }
- },
- /* 15BPP/16BPC */
- { 273, 15, 2048, 19, 28, 27, 27, {
- { 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 },
- { 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 },
- { 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 },
- { 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 },
- { 24, 25, -12 }
- }
- }
-}
-
-};
-
-static int get_row_index_for_rc_params(u16 compressed_bpp)
-{
- switch (compressed_bpp) {
- case 6:
- return ROW_INDEX_6BPP;
- case 8:
- return ROW_INDEX_8BPP;
- case 10:
- return ROW_INDEX_10BPP;
- case 12:
- return ROW_INDEX_12BPP;
- case 15:
- return ROW_INDEX_15BPP;
- default:
- return -EINVAL;
- }
-}
-
-static int get_column_index_for_rc_params(u8 bits_per_component)
-{
- switch (bits_per_component) {
- case 8:
- return COLUMN_INDEX_8BPC;
- case 10:
- return COLUMN_INDEX_10BPC;
- case 12:
- return COLUMN_INDEX_12BPC;
- case 14:
- return COLUMN_INDEX_14BPC;
- case 16:
- return COLUMN_INDEX_16BPC;
- default:
- return -EINVAL;
- }
-}
-
-static const struct rc_parameters *get_rc_params(u16 compressed_bpp,
- u8 bits_per_component)
-{
- int row_index, column_index;
-
- row_index = get_row_index_for_rc_params(compressed_bpp);
- if (row_index < 0)
- return NULL;
-
- column_index = get_column_index_for_rc_params(bits_per_component);
- if (column_index < 0)
- return NULL;
-
- return &rc_parameters[row_index][column_index];
-}
-
bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state)
{
const struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -479,6 +171,7 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config)
struct rc_parameters *rc = NULL;
int err;
u8 i = 0;
+ int ret;
vdsc_cfg->pic_width = pipe_config->hw.adjusted_mode.crtc_hdisplay;
vdsc_cfg->slice_width = DIV_ROUND_UP(vdsc_cfg->pic_width,
@@ -552,10 +245,11 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config)
calculate_rc_params(rc, vdsc_cfg);
rc_params = rc;
} else {
- rc_params = get_rc_params(compressed_bpp,
- vdsc_cfg->bits_per_component);
- if (!rc_params)
- return -EINVAL;
+ ret = drm_dsc_setup_rc_params(vdsc_cfg);
+ if (ret)
+ return ret;
+
+ goto out;
}
vdsc_cfg->first_line_bpg_offset = rc_params->first_line_bpg_offset;
@@ -594,6 +288,7 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config)
vdsc_cfg->rc_range_params[0].range_bpg_offset = 0;
}
+out:
/*
* BitsPerComponent value determines mux_word_size:
* When BitsPerComponent is less than or 10bpc, muxWordSize will be equal to
@@ -15,6 +15,7 @@ int drm_dsc_dp_rc_buffer_size(u8 rc_buffer_block_size, u8 rc_buffer_size);
void drm_dsc_pps_payload_pack(struct drm_dsc_picture_parameter_set *pps_sdp,
const struct drm_dsc_config *dsc_cfg);
void drm_dsc_set_rc_buf_thresh(struct drm_dsc_config *vdsc_cfg);
+int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg);
int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg);
#endif /* _DRM_DSC_HELPER_H_ */