On Fri Jan 9 11:15:33 2026 -0500, Detlev Casanova wrote:
> The VDPU383 decoder is used on the RK3576 SoC and has support for HEVC.
> 
> This patch also moves some functions to a common rkvdec-hevc-common.c
> file and adds a specific scaling matrix flatten function.
> 
> The fluster score for JCT-VC-HEVC_V1 is 146/147.
> 
> Reviewed-by: Nicolas Dufresne <[email protected]>
> Signed-off-by: Detlev Casanova <[email protected]>
> Signed-off-by: Nicolas Dufresne <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>

Patch committed.

Thanks,
Hans Verkuil

 drivers/media/platform/rockchip/rkvdec/Makefile    |   1 +
 .../platform/rockchip/rkvdec/rkvdec-hevc-common.c  |  59 +-
 .../platform/rockchip/rkvdec/rkvdec-hevc-common.h  |   3 +-
 .../media/platform/rockchip/rkvdec/rkvdec-hevc.c   |   2 +-
 .../platform/rockchip/rkvdec/rkvdec-vdpu381-hevc.c |   3 +-
 .../platform/rockchip/rkvdec/rkvdec-vdpu383-hevc.c | 652 +++++++++++++++++++++
 drivers/media/platform/rockchip/rkvdec/rkvdec.c    |  91 +++
 drivers/media/platform/rockchip/rkvdec/rkvdec.h    |   2 +
 8 files changed, 765 insertions(+), 48 deletions(-)

---

diff --git a/drivers/media/platform/rockchip/rkvdec/Makefile 
b/drivers/media/platform/rockchip/rkvdec/Makefile
index e30fdd7d51c3..e629d571e4d8 100644
--- a/drivers/media/platform/rockchip/rkvdec/Makefile
+++ b/drivers/media/platform/rockchip/rkvdec/Makefile
@@ -11,4 +11,5 @@ rockchip-vdec-y += \
                   rkvdec-vdpu381-h264.o \
                   rkvdec-vdpu381-hevc.o \
                   rkvdec-vdpu383-h264.o \
+                  rkvdec-vdpu383-hevc.o \
                   rkvdec-vp9.o
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.c 
b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.c
index f6d7610772ee..28267ee30190 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.c
@@ -140,56 +140,26 @@ static void set_ref_poc(struct 
rkvdec_rps_short_term_ref_set *set, int poc, int
        }
 }
 
-/*
- * Flip one or more matrices along their main diagonal and flatten them
- * before writing it to the memory.
- * Convert:
- * ABCD         AEIM
- * EFGH     =>  BFJN     =>     AEIMBFJNCGKODHLP
- * IJKL         CGKO
- * MNOP         DHLP
- */
-static void transpose_and_flatten_matrices(u8 *output, const u8 *input,
-                                          int matrices, int row_length)
-{
-       int i, j, row, x_offset, matrix_offset, rot_index, y_offset, 
matrix_size, new_value;
-
-       matrix_size = row_length * row_length;
-       for (i = 0; i < matrices; i++) {
-               row = 0;
-               x_offset = 0;
-               matrix_offset = i * matrix_size;
-               for (j = 0; j < matrix_size; j++) {
-                       y_offset = j - (row * row_length);
-                       rot_index = y_offset * row_length + x_offset;
-                       new_value = *(input + i * matrix_size + j);
-                       output[matrix_offset + rot_index] = new_value;
-                       if ((j + 1) % row_length == 0) {
-                               row += 1;
-                               x_offset += 1;
-                       }
-               }
-       }
-}
-
-static void assemble_scalingfactor0(u8 *output, const struct 
v4l2_ctrl_hevc_scaling_matrix *input)
+static void assemble_scalingfactor0(struct rkvdec_ctx *ctx, u8 *output,
+                                   const struct v4l2_ctrl_hevc_scaling_matrix 
*input)
 {
+       const struct rkvdec_variant *variant = ctx->dev->variant;
        int offset = 0;
 
-       transpose_and_flatten_matrices(output, (const u8 
*)input->scaling_list_4x4, 6, 4);
+       variant->ops->flatten_matrices(output, (const u8 
*)input->scaling_list_4x4, 6, 4);
        offset = 6 * 16 * sizeof(u8);
-       transpose_and_flatten_matrices(output + offset, (const u8 
*)input->scaling_list_8x8, 6, 8);
+       variant->ops->flatten_matrices(output + offset, (const u8 
*)input->scaling_list_8x8, 6, 8);
        offset += 6 * 64 * sizeof(u8);
-       transpose_and_flatten_matrices(output + offset,
-                                      (const u8 *)input->scaling_list_16x16, 
6, 8);
+       variant->ops->flatten_matrices(output + offset, (const u8 
*)input->scaling_list_16x16,
+                                      6, 8);
        offset += 6 * 64 * sizeof(u8);
        /* Add a 128 byte padding with 0s between the two 32x32 matrices */
-       transpose_and_flatten_matrices(output + offset,
-                                      (const u8 *)input->scaling_list_32x32, 
1, 8);
+       variant->ops->flatten_matrices(output + offset, (const u8 
*)input->scaling_list_32x32,
+                                      1, 8);
        offset += 64 * sizeof(u8);
        memset(output + offset, 0, 128);
        offset += 128 * sizeof(u8);
-       transpose_and_flatten_matrices(output + offset,
+       variant->ops->flatten_matrices(output + offset,
                                       (const u8 *)input->scaling_list_32x32 + 
(64 * sizeof(u8)),
                                       1, 8);
        offset += 64 * sizeof(u8);
@@ -214,16 +184,17 @@ static void assemble_scalingdc(u8 *output, const struct 
v4l2_ctrl_hevc_scaling_m
        memcpy(output + 6 * sizeof(u8), list_32x32, 6 * sizeof(u8));
 }
 
-static void translate_scaling_list(struct scaling_factor *output,
+static void translate_scaling_list(struct rkvdec_ctx *ctx, struct 
scaling_factor *output,
                                   const struct v4l2_ctrl_hevc_scaling_matrix 
*input)
 {
-       assemble_scalingfactor0(output->scalingfactor0, input);
+       assemble_scalingfactor0(ctx, output->scalingfactor0, input);
        memcpy(output->scalingfactor1, (const u8 *)input->scaling_list_4x4, 96);
        assemble_scalingdc(output->scalingdc, input);
        memset(output->reserved, 0, 4 * sizeof(u8));
 }
 
-void rkvdec_hevc_assemble_hw_scaling_list(struct rkvdec_hevc_run *run,
+void rkvdec_hevc_assemble_hw_scaling_list(struct rkvdec_ctx *ctx,
+                                         struct rkvdec_hevc_run *run,
                                          struct scaling_factor *scaling_factor,
                                          struct v4l2_ctrl_hevc_scaling_matrix 
*cache)
 {
@@ -233,7 +204,7 @@ void rkvdec_hevc_assemble_hw_scaling_list(struct 
rkvdec_hevc_run *run,
                    sizeof(struct v4l2_ctrl_hevc_scaling_matrix)))
                return;
 
-       translate_scaling_list(scaling_factor, scaling);
+       translate_scaling_list(ctx, scaling_factor, scaling);
 
        memcpy(cache, scaling,
               sizeof(struct v4l2_ctrl_hevc_scaling_matrix));
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.h 
b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.h
index ce413454317a..6f4faca4c091 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.h
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc-common.h
@@ -95,7 +95,8 @@ void compute_tiles_non_uniform(struct rkvdec_hevc_run *run, 
u16 log2_min_cb_size
                               s32 pic_in_cts_height, u16 *column_width, u16 
*row_height);
 void rkvdec_hevc_assemble_hw_rps(struct rkvdec_hevc_run *run, struct 
rkvdec_rps *rps,
                                 struct v4l2_ctrl_hevc_ext_sps_st_rps 
*st_cache);
-void rkvdec_hevc_assemble_hw_scaling_list(struct rkvdec_hevc_run *run,
+void rkvdec_hevc_assemble_hw_scaling_list(struct rkvdec_ctx *ctx,
+                                         struct rkvdec_hevc_run *run,
                                          struct scaling_factor *scaling_factor,
                                          struct v4l2_ctrl_hevc_scaling_matrix 
*cache);
 struct vb2_buffer *get_ref_buf(struct rkvdec_ctx *ctx,
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c 
b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c
index a981f910dd68..3276f584f5c7 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c
@@ -568,7 +568,7 @@ static int rkvdec_hevc_run(struct rkvdec_ctx *ctx)
 
        rkvdec_hevc_run_preamble(ctx, &run);
 
-       rkvdec_hevc_assemble_hw_scaling_list(&run, &tbl->scaling_list,
+       rkvdec_hevc_assemble_hw_scaling_list(ctx, &run, &tbl->scaling_list,
                                             &hevc_ctx->scaling_matrix_cache);
        assemble_hw_pps(ctx, &run);
        assemble_sw_rps(ctx, &run);
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-hevc.c 
b/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-hevc.c
index 32c79e948f8f..5f1c11ffb9f0 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-hevc.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-hevc.c
@@ -594,8 +594,7 @@ static int rkvdec_hevc_run(struct rkvdec_ctx *ctx)
 
        rkvdec_hevc_run_preamble(ctx, &run);
 
-       rkvdec_hevc_assemble_hw_scaling_list(&run,
-                                            &tbl->scaling_list,
+       rkvdec_hevc_assemble_hw_scaling_list(ctx, &run, &tbl->scaling_list,
                                             &hevc_ctx->scaling_matrix_cache);
        assemble_hw_pps(ctx, &run);
 
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu383-hevc.c 
b/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu383-hevc.c
new file mode 100644
index 000000000000..085c0a63a80c
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu383-hevc.c
@@ -0,0 +1,652 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip VDPU383 HEVC backend
+ *
+ * Copyright (C) 2025 Collabora, Ltd.
+ *  Detlev Casanova <[email protected]>
+ */
+
+#include <media/v4l2-mem2mem.h>
+
+#include "rkvdec.h"
+#include "rkvdec-cabac.h"
+#include "rkvdec-rcb.h"
+#include "rkvdec-hevc-common.h"
+#include "rkvdec-vdpu383-regs.h"
+
+struct rkvdec_hevc_sps_pps {
+       // SPS
+       u16 video_parameters_set_id                     : 4;
+       u16 seq_parameters_set_id_sps                   : 4;
+       u16 chroma_format_idc                           : 2;
+       u16 width                                       : 16;
+       u16 height                                      : 16;
+       u16 bit_depth_luma                              : 3;
+       u16 bit_depth_chroma                            : 3;
+       u16 max_pic_order_count_lsb                     : 5;
+       u16 diff_max_min_luma_coding_block_size         : 2;
+       u16 min_luma_coding_block_size                  : 3;
+       u16 min_transform_block_size                    : 3;
+       u16 diff_max_min_transform_block_size           : 2;
+       u16 max_transform_hierarchy_depth_inter         : 3;
+       u16 max_transform_hierarchy_depth_intra         : 3;
+       u16 scaling_list_enabled_flag                   : 1;
+       u16 amp_enabled_flag                            : 1;
+       u16 sample_adaptive_offset_enabled_flag         : 1;
+       u16 pcm_enabled_flag                            : 1;
+       u16 pcm_sample_bit_depth_luma                   : 4;
+       u16 pcm_sample_bit_depth_chroma                 : 4;
+       u16 pcm_loop_filter_disabled_flag               : 1;
+       u16 diff_max_min_pcm_luma_coding_block_size     : 3;
+       u16 min_pcm_luma_coding_block_size              : 3;
+       u16 num_short_term_ref_pic_sets                 : 7;
+       u16 long_term_ref_pics_present_flag             : 1;
+       u16 num_long_term_ref_pics_sps                  : 6;
+       u16 sps_temporal_mvp_enabled_flag               : 1;
+       u16 strong_intra_smoothing_enabled_flag         : 1;
+       u16 reserved0                                   : 7;
+       u16 sps_max_dec_pic_buffering_minus1            : 4;
+       u16 separate_colour_plane_flag                  : 1;
+       u16 high_precision_offsets_enabled_flag         : 1;
+       u16 persistent_rice_adaptation_enabled_flag     : 1;
+
+       // PPS
+       u16 picture_parameters_set_id                   : 6;
+       u16 seq_parameters_set_id_pps                   : 4;
+       u16 dependent_slice_segments_enabled_flag       : 1;
+       u16 output_flag_present_flag                    : 1;
+       u16 num_extra_slice_header_bits                 : 13;
+       u16 sign_data_hiding_enabled_flag               : 1;
+       u16 cabac_init_present_flag                     : 1;
+       u16 num_ref_idx_l0_default_active               : 4;
+       u16 num_ref_idx_l1_default_active               : 4;
+       u16 init_qp_minus26                             : 7;
+       u16 constrained_intra_pred_flag                 : 1;
+       u16 transform_skip_enabled_flag                 : 1;
+       u16 cu_qp_delta_enabled_flag                    : 1;
+       u16 log2_min_cb_size                            : 3;
+       u16 pps_cb_qp_offset                            : 5;
+       u16 pps_cr_qp_offset                            : 5;
+       u16 pps_slice_chroma_qp_offsets_present_flag    : 1;
+       u16 weighted_pred_flag                          : 1;
+       u16 weighted_bipred_flag                        : 1;
+       u16 transquant_bypass_enabled_flag              : 1;
+       u16 tiles_enabled_flag                          : 1;
+       u16 entropy_coding_sync_enabled_flag            : 1;
+       u16 pps_loop_filter_across_slices_enabled_flag  : 1;
+       u16 loop_filter_across_tiles_enabled_flag       : 1;
+       u16 deblocking_filter_override_enabled_flag     : 1;
+       u16 pps_deblocking_filter_disabled_flag         : 1;
+       u16 pps_beta_offset_div2                        : 4;
+       u16 pps_tc_offset_div2                          : 4;
+       u16 lists_modification_present_flag             : 1;
+       u16 log2_parallel_merge_level                   : 3;
+       u16 slice_segment_header_extension_present_flag : 1;
+       u16 reserved1                                   : 3;
+
+       // pps extensions
+       u16 log2_max_transform_skip_block_size          : 2;
+       u16 cross_component_prediction_enabled_flag     : 1;
+       u16 chroma_qp_offset_list_enabled_flag          : 1;
+       u16 log2_min_cu_chroma_qp_delta_size            : 3;
+       u16 cb_qp_offset_list0                          : 5;
+       u16 cb_qp_offset_list1                          : 5;
+       u16 cb_qp_offset_list2                          : 5;
+       u16 cb_qp_offset_list3                          : 5;
+       u16 cb_qp_offset_list4                          : 5;
+       u16 cb_qp_offset_list5                          : 5;
+       u16 cb_cr_offset_list0                          : 5;
+       u16 cb_cr_offset_list1                          : 5;
+       u16 cb_cr_offset_list2                          : 5;
+       u16 cb_cr_offset_list3                          : 5;
+       u16 cb_cr_offset_list4                          : 5;
+       u16 cb_cr_offset_list5                          : 5;
+       u16 chroma_qp_offset_list_len_minus1            : 3;
+
+       /* mvc0 && mvc1 */
+       u16 mvc_ff                                      : 16;
+       u16 mvc_00                                      : 9;
+
+       /* poc info */
+       u16 reserved2                                   : 3;
+       u32 current_poc                                 : 32;
+       u32 ref_pic_poc0                                : 32;
+       u32 ref_pic_poc1                                : 32;
+       u32 ref_pic_poc2                                : 32;
+       u32 ref_pic_poc3                                : 32;
+       u32 ref_pic_poc4                                : 32;
+       u32 ref_pic_poc5                                : 32;
+       u32 ref_pic_poc6                                : 32;
+       u32 ref_pic_poc7                                : 32;
+       u32 ref_pic_poc8                                : 32;
+       u32 ref_pic_poc9                                : 32;
+       u32 ref_pic_poc10                               : 32;
+       u32 ref_pic_poc11                               : 32;
+       u32 ref_pic_poc12                               : 32;
+       u32 ref_pic_poc13                               : 32;
+       u32 ref_pic_poc14                               : 32;
+       u32 reserved3                                   : 32;
+       u32 ref_is_valid                                : 15;
+       u32 reserved4                                   : 1;
+
+       /* tile info*/
+       u16 num_tile_columns                            : 5;
+       u16 num_tile_rows                               : 5;
+       u32 column_width0                               : 24;
+       u32 column_width1                               : 24;
+       u32 column_width2                               : 24;
+       u32 column_width3                               : 24;
+       u32 column_width4                               : 24;
+       u32 column_width5                               : 24;
+       u32 column_width6                               : 24;
+       u32 column_width7                               : 24;
+       u32 column_width8                               : 24;
+       u32 column_width9                               : 24;
+       u32 row_height0                                 : 24;
+       u32 row_height1                                 : 24;
+       u32 row_height2                                 : 24;
+       u32 row_height3                                 : 24;
+       u32 row_height4                                 : 24;
+       u32 row_height5                                 : 24;
+       u32 row_height6                                 : 24;
+       u32 row_height7                                 : 24;
+       u32 row_height8                                 : 24;
+       u32 row_height9                                 : 24;
+       u32 row_height10                                : 24;
+       u32 reserved5                                   : 2;
+       u32 padding;
+} __packed;
+
+struct rkvdec_hevc_priv_tbl {
+       struct rkvdec_hevc_sps_pps param_set;
+       struct rkvdec_rps rps;
+       struct scaling_factor scaling_list;
+       u8 cabac_table[27456];
+}  __packed;
+
+struct rkvdec_hevc_ctx {
+       struct rkvdec_aux_buf                   priv_tbl;
+       struct v4l2_ctrl_hevc_scaling_matrix    scaling_matrix_cache;
+       struct v4l2_ctrl_hevc_ext_sps_st_rps    st_cache;
+       struct vdpu383_regs_h26x                regs;
+};
+
+static void set_column_row(struct rkvdec_hevc_sps_pps *hw_ps, u16 *column, u16 
*row)
+{
+       hw_ps->column_width0 = column[0] | (column[1] << 12);
+       hw_ps->row_height0 = row[0] | (row[1] << 12);
+       hw_ps->column_width1 = column[2] | (column[3] << 12);
+       hw_ps->row_height1 = row[2] | (row[3] << 12);
+       hw_ps->column_width2 = column[4] | (column[5] << 12);
+       hw_ps->row_height2 = row[4] | (row[5] << 12);
+       hw_ps->column_width3 = column[6] | (column[7] << 12);
+       hw_ps->row_height3 = row[6] | (row[7] << 12);
+       hw_ps->column_width4 = column[8] | (column[9] << 12);
+       hw_ps->row_height4 = row[8] | (row[9] << 12);
+       hw_ps->column_width5 = column[10] | (column[11] << 12);
+       hw_ps->row_height5 = row[10] | (row[11] << 12);
+       hw_ps->column_width6 = column[12] | (column[13] << 12);
+       hw_ps->row_height6 = row[12] | (row[13] << 12);
+       hw_ps->column_width7 = column[14] | (column[15] << 12);
+       hw_ps->row_height7 = row[14] | (row[15] << 12);
+       hw_ps->column_width8 = column[16] | (column[17] << 12);
+       hw_ps->row_height8 = row[16] | (row[17] << 12);
+       hw_ps->column_width9 = column[18] | (column[19] << 12);
+       hw_ps->row_height9 = row[18] | (row[19] << 12);
+
+       hw_ps->row_height10 = row[20] | (row[21] << 12);
+}
+
+static void set_pps_ref_pic_poc(struct rkvdec_hevc_sps_pps *hw_ps, const 
struct v4l2_hevc_dpb_entry *dpb)
+{
+       hw_ps->ref_pic_poc0 = dpb[0].pic_order_cnt_val;
+       hw_ps->ref_pic_poc1 = dpb[1].pic_order_cnt_val;
+       hw_ps->ref_pic_poc2 = dpb[2].pic_order_cnt_val;
+       hw_ps->ref_pic_poc3 = dpb[3].pic_order_cnt_val;
+       hw_ps->ref_pic_poc4 = dpb[4].pic_order_cnt_val;
+       hw_ps->ref_pic_poc5 = dpb[5].pic_order_cnt_val;
+       hw_ps->ref_pic_poc6 = dpb[6].pic_order_cnt_val;
+       hw_ps->ref_pic_poc7 = dpb[7].pic_order_cnt_val;
+       hw_ps->ref_pic_poc8 = dpb[8].pic_order_cnt_val;
+       hw_ps->ref_pic_poc9 = dpb[9].pic_order_cnt_val;
+       hw_ps->ref_pic_poc10 = dpb[10].pic_order_cnt_val;
+       hw_ps->ref_pic_poc11 = dpb[11].pic_order_cnt_val;
+       hw_ps->ref_pic_poc12 = dpb[12].pic_order_cnt_val;
+       hw_ps->ref_pic_poc13 = dpb[13].pic_order_cnt_val;
+       hw_ps->ref_pic_poc14 = dpb[14].pic_order_cnt_val;
+}
+
+static void assemble_hw_pps(struct rkvdec_ctx *ctx,
+                           struct rkvdec_hevc_run *run)
+{
+       struct rkvdec_hevc_ctx *h264_ctx = ctx->priv;
+       const struct v4l2_ctrl_hevc_sps *sps = run->sps;
+       const struct v4l2_ctrl_hevc_pps *pps = run->pps;
+       const struct v4l2_ctrl_hevc_decode_params *dec_params = 
run->decode_params;
+       struct rkvdec_hevc_priv_tbl *priv_tbl = h264_ctx->priv_tbl.cpu;
+       struct rkvdec_hevc_sps_pps *hw_ps;
+       bool tiles_enabled;
+       s32 max_cu_width;
+       s32 pic_in_cts_width;
+       s32 pic_in_cts_height;
+       u16 log2_min_cb_size, width, height;
+       u16 column_width[22];
+       u16 row_height[22];
+       u8 pcm_enabled;
+       u32 i;
+
+       /*
+        * HW read the SPS/PPS information from PPS packet index by PPS id.
+        * offset from the base can be calculated by PPS_id * 32 (size per PPS
+        * packet unit). so the driver copy SPS/PPS information to the exact PPS
+        * packet unit for HW accessing.
+        */
+       hw_ps = &priv_tbl->param_set;
+       memset(hw_ps, 0, sizeof(*hw_ps));
+
+       /* write sps */
+       hw_ps->video_parameters_set_id = sps->video_parameter_set_id;
+       hw_ps->seq_parameters_set_id_sps = sps->seq_parameter_set_id;
+       hw_ps->chroma_format_idc = sps->chroma_format_idc;
+
+       log2_min_cb_size = sps->log2_min_luma_coding_block_size_minus3 + 3;
+       width = sps->pic_width_in_luma_samples;
+       height = sps->pic_height_in_luma_samples;
+       hw_ps->width = width;
+       hw_ps->height = height;
+       hw_ps->bit_depth_luma = sps->bit_depth_luma_minus8 + 8;
+       hw_ps->bit_depth_chroma = sps->bit_depth_chroma_minus8 + 8;
+       hw_ps->max_pic_order_count_lsb = sps->log2_max_pic_order_cnt_lsb_minus4 
+ 4;
+       hw_ps->diff_max_min_luma_coding_block_size = 
sps->log2_diff_max_min_luma_coding_block_size;
+       hw_ps->min_luma_coding_block_size = 
sps->log2_min_luma_coding_block_size_minus3 + 3;
+       hw_ps->min_transform_block_size = 
sps->log2_min_luma_transform_block_size_minus2 + 2;
+       hw_ps->diff_max_min_transform_block_size =
+               sps->log2_diff_max_min_luma_transform_block_size;
+       hw_ps->max_transform_hierarchy_depth_inter = 
sps->max_transform_hierarchy_depth_inter;
+       hw_ps->max_transform_hierarchy_depth_intra = 
sps->max_transform_hierarchy_depth_intra;
+       hw_ps->scaling_list_enabled_flag =
+               !!(sps->flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED);
+       hw_ps->amp_enabled_flag = !!(sps->flags & 
V4L2_HEVC_SPS_FLAG_AMP_ENABLED);
+       hw_ps->sample_adaptive_offset_enabled_flag =
+               !!(sps->flags & V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET);
+
+       pcm_enabled = !!(sps->flags & V4L2_HEVC_SPS_FLAG_PCM_ENABLED);
+       hw_ps->pcm_enabled_flag = pcm_enabled;
+       hw_ps->pcm_sample_bit_depth_luma =
+               pcm_enabled ? sps->pcm_sample_bit_depth_luma_minus1 + 1 : 0;
+       hw_ps->pcm_sample_bit_depth_chroma =
+               pcm_enabled ? sps->pcm_sample_bit_depth_chroma_minus1 + 1 : 0;
+       hw_ps->pcm_loop_filter_disabled_flag =
+               !!(sps->flags & V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED);
+       hw_ps->diff_max_min_pcm_luma_coding_block_size =
+               sps->log2_diff_max_min_pcm_luma_coding_block_size;
+       hw_ps->min_pcm_luma_coding_block_size =
+               pcm_enabled ? sps->log2_min_pcm_luma_coding_block_size_minus3 + 
3 : 0;
+       hw_ps->num_short_term_ref_pic_sets = sps->num_short_term_ref_pic_sets;
+       hw_ps->long_term_ref_pics_present_flag =
+               !!(sps->flags & V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT);
+       hw_ps->num_long_term_ref_pics_sps = sps->num_long_term_ref_pics_sps;
+       hw_ps->sps_temporal_mvp_enabled_flag =
+               !!(sps->flags & V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED);
+       hw_ps->strong_intra_smoothing_enabled_flag =
+               !!(sps->flags & 
V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED);
+       hw_ps->sps_max_dec_pic_buffering_minus1 = 
sps->sps_max_dec_pic_buffering_minus1;
+
+       /* write pps */
+       hw_ps->picture_parameters_set_id = pps->pic_parameter_set_id;
+       hw_ps->seq_parameters_set_id_pps = sps->seq_parameter_set_id;
+       hw_ps->dependent_slice_segments_enabled_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED);
+       hw_ps->output_flag_present_flag = !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT);
+       hw_ps->num_extra_slice_header_bits = pps->num_extra_slice_header_bits;
+       hw_ps->sign_data_hiding_enabled_flag =
+               !!(pps->flags & V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED);
+       hw_ps->cabac_init_present_flag = !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT);
+       hw_ps->num_ref_idx_l0_default_active = 
pps->num_ref_idx_l0_default_active_minus1 + 1;
+       hw_ps->num_ref_idx_l1_default_active = 
pps->num_ref_idx_l1_default_active_minus1 + 1;
+       hw_ps->init_qp_minus26 = pps->init_qp_minus26;
+       hw_ps->constrained_intra_pred_flag =
+               !!(pps->flags & V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED);
+       hw_ps->transform_skip_enabled_flag =
+               !!(pps->flags & V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED);
+       hw_ps->cu_qp_delta_enabled_flag = !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED);
+       hw_ps->log2_min_cb_size = log2_min_cb_size +
+                                 sps->log2_diff_max_min_luma_coding_block_size 
-
+                                 pps->diff_cu_qp_delta_depth;
+       hw_ps->pps_cb_qp_offset = pps->pps_cb_qp_offset;
+       hw_ps->pps_cr_qp_offset = pps->pps_cr_qp_offset;
+       hw_ps->pps_slice_chroma_qp_offsets_present_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT);
+       hw_ps->weighted_pred_flag = !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED);
+       hw_ps->weighted_bipred_flag = !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED);
+       hw_ps->transquant_bypass_enabled_flag =
+               !!(pps->flags & V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED);
+       tiles_enabled = !!(pps->flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED);
+       hw_ps->tiles_enabled_flag = tiles_enabled;
+       hw_ps->entropy_coding_sync_enabled_flag =
+               !!(pps->flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED);
+       hw_ps->pps_loop_filter_across_slices_enabled_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED);
+       hw_ps->loop_filter_across_tiles_enabled_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED);
+       hw_ps->deblocking_filter_override_enabled_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED);
+       hw_ps->pps_deblocking_filter_disabled_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER);
+       hw_ps->pps_beta_offset_div2 = pps->pps_beta_offset_div2;
+       hw_ps->pps_tc_offset_div2 = pps->pps_tc_offset_div2;
+       hw_ps->lists_modification_present_flag =
+               !!(pps->flags & V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT);
+       hw_ps->log2_parallel_merge_level = 
pps->log2_parallel_merge_level_minus2 + 2;
+       hw_ps->slice_segment_header_extension_present_flag =
+               !!(pps->flags & 
V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT);
+       hw_ps->num_tile_columns = tiles_enabled ? pps->num_tile_columns_minus1 
+ 1 : 1;
+       hw_ps->num_tile_rows = tiles_enabled ? pps->num_tile_rows_minus1 + 1 : 
1;
+       hw_ps->mvc_ff = 0xffff;
+
+       // Setup tiles information
+       memset(column_width, 0, sizeof(column_width));
+       memset(row_height, 0, sizeof(row_height));
+
+       max_cu_width = 1 << (sps->log2_diff_max_min_luma_coding_block_size + 
log2_min_cb_size);
+       pic_in_cts_width = (width + max_cu_width - 1) / max_cu_width;
+       pic_in_cts_height = (height + max_cu_width - 1) / max_cu_width;
+
+       if (tiles_enabled) {
+               if (pps->flags & V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING) {
+                       compute_tiles_uniform(run, log2_min_cb_size, width, 
height,
+                                             pic_in_cts_width, 
pic_in_cts_height,
+                                             column_width, row_height);
+               } else {
+                       compute_tiles_non_uniform(run, log2_min_cb_size, width, 
height,
+                                                 pic_in_cts_width, 
pic_in_cts_height,
+                                                 column_width, row_height);
+               }
+       } else {
+               column_width[0] = (width + max_cu_width - 1) / max_cu_width;
+               row_height[0] = (height + max_cu_width - 1) / max_cu_width;
+       }
+
+       set_column_row(hw_ps, column_width, row_height);
+
+       // Setup POC information
+       hw_ps->current_poc = dec_params->pic_order_cnt_val;
+
+       set_pps_ref_pic_poc(hw_ps, dec_params->dpb);
+       for (i = 0; i < ARRAY_SIZE(dec_params->dpb); i++) {
+               u32 valid = !!(dec_params->num_active_dpb_entries > i);
+               hw_ps->ref_is_valid |= valid << i;
+       }
+}
+
+static void rkvdec_write_regs(struct rkvdec_ctx *ctx)
+{
+       struct rkvdec_dev *rkvdec = ctx->dev;
+       struct rkvdec_hevc_ctx *h265_ctx = ctx->priv;
+
+       rkvdec_memcpy_toio(rkvdec->regs + VDPU383_OFFSET_COMMON_REGS,
+                          &h265_ctx->regs.common,
+                          sizeof(h265_ctx->regs.common));
+       rkvdec_memcpy_toio(rkvdec->regs + VDPU383_OFFSET_COMMON_ADDR_REGS,
+                          &h265_ctx->regs.common_addr,
+                          sizeof(h265_ctx->regs.common_addr));
+       rkvdec_memcpy_toio(rkvdec->regs + VDPU383_OFFSET_CODEC_PARAMS_REGS,
+                          &h265_ctx->regs.h26x_params,
+                          sizeof(h265_ctx->regs.h26x_params));
+       rkvdec_memcpy_toio(rkvdec->regs + VDPU383_OFFSET_CODEC_ADDR_REGS,
+                          &h265_ctx->regs.h26x_addr,
+                          sizeof(h265_ctx->regs.h26x_addr));
+}
+
+static void config_registers(struct rkvdec_ctx *ctx,
+                            struct rkvdec_hevc_run *run)
+{
+       const struct v4l2_ctrl_hevc_decode_params *dec_params = 
run->decode_params;
+       struct rkvdec_hevc_ctx *h265_ctx = ctx->priv;
+       const struct v4l2_ctrl_hevc_sps *sps = run->sps;
+       dma_addr_t priv_start_addr = h265_ctx->priv_tbl.dma;
+       const struct v4l2_pix_format_mplane *dst_fmt;
+       struct vb2_v4l2_buffer *src_buf = run->base.bufs.src;
+       struct vb2_v4l2_buffer *dst_buf = run->base.bufs.dst;
+       struct vdpu383_regs_h26x *regs = &h265_ctx->regs;
+       const struct v4l2_format *f;
+       dma_addr_t rlc_addr;
+       dma_addr_t dst_addr;
+       u32 hor_virstride;
+       u32 ver_virstride;
+       u32 y_virstride;
+       u32 offset;
+       u32 pixels;
+       u32 i;
+
+       memset(regs, 0, sizeof(*regs));
+
+       /* Set HEVC mode */
+       regs->common.reg008_dec_mode = VDPU383_MODE_HEVC;
+
+       /* Set input stream length */
+       regs->h26x_params.reg066_stream_len = 
vb2_get_plane_payload(&src_buf->vb2_buf, 0);
+
+       /* Set strides */
+       f = &ctx->decoded_fmt;
+       dst_fmt = &f->fmt.pix_mp;
+       hor_virstride = dst_fmt->plane_fmt[0].bytesperline;
+       ver_virstride = dst_fmt->height;
+       y_virstride = hor_virstride * ver_virstride;
+
+       pixels = dst_fmt->height * dst_fmt->width;
+
+       regs->h26x_params.reg068_hor_virstride = hor_virstride / 16;
+       regs->h26x_params.reg069_raster_uv_hor_virstride = hor_virstride / 16;
+       regs->h26x_params.reg070_y_virstride = y_virstride / 16;
+
+       /* Activate block gating */
+       regs->common.reg010_block_gating_en.strmd_auto_gating_e      = 1;
+       regs->common.reg010_block_gating_en.inter_auto_gating_e      = 1;
+       regs->common.reg010_block_gating_en.intra_auto_gating_e      = 1;
+       regs->common.reg010_block_gating_en.transd_auto_gating_e     = 1;
+       regs->common.reg010_block_gating_en.recon_auto_gating_e      = 1;
+       regs->common.reg010_block_gating_en.filterd_auto_gating_e    = 1;
+       regs->common.reg010_block_gating_en.bus_auto_gating_e        = 1;
+       regs->common.reg010_block_gating_en.ctrl_auto_gating_e       = 1;
+       regs->common.reg010_block_gating_en.rcb_auto_gating_e        = 1;
+       regs->common.reg010_block_gating_en.err_prc_auto_gating_e    = 1;
+
+       /* Set timeout threshold */
+       if (pixels < RKVDEC_1080P_PIXELS)
+               regs->common.reg013_core_timeout_threshold = 
VDPU383_TIMEOUT_1080p;
+       else if (pixels < RKVDEC_4K_PIXELS)
+               regs->common.reg013_core_timeout_threshold = VDPU383_TIMEOUT_4K;
+       else if (pixels < RKVDEC_8K_PIXELS)
+               regs->common.reg013_core_timeout_threshold = VDPU383_TIMEOUT_8K;
+       else
+               regs->common.reg013_core_timeout_threshold = 
VDPU383_TIMEOUT_MAX;
+
+       regs->common.reg016_error_ctrl_set.error_proc_disable = 1;
+
+       /* Set ref pic address & poc */
+       for (i = 0; i < ARRAY_SIZE(dec_params->dpb) - 1; i++) {
+               struct vb2_buffer *vb_buf = get_ref_buf(ctx, run, i);
+               dma_addr_t buf_dma;
+
+               buf_dma = vb2_dma_contig_plane_dma_addr(vb_buf, 0);
+
+               /* Set reference addresses */
+               regs->h26x_addr.reg170_185_ref_base[i] = buf_dma;
+               regs->h26x_addr.reg195_210_payload_st_ref_base[i] = buf_dma;
+
+               /* Set COLMV addresses */
+               regs->h26x_addr.reg217_232_colmv_ref_base[i] = buf_dma + 
ctx->colmv_offset;
+       }
+
+       /* Set rlc base address (input stream) */
+       rlc_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
+       regs->common_addr.reg128_strm_base = rlc_addr;
+
+       /* Set output base address */
+       dst_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
+       regs->h26x_addr.reg168_decout_base = dst_addr;
+       regs->h26x_addr.reg169_error_ref_base = dst_addr;
+       regs->h26x_addr.reg192_payload_st_cur_base = dst_addr;
+
+       /* Set colmv address */
+       regs->h26x_addr.reg216_colmv_cur_base = dst_addr + ctx->colmv_offset;
+
+       /* Set RCB addresses */
+       for (i = 0; i < rkvdec_rcb_buf_count(ctx); i++) {
+               regs->common_addr.reg140_162_rcb_info[i].offset = 
rkvdec_rcb_buf_dma_addr(ctx, i);
+               regs->common_addr.reg140_162_rcb_info[i].size = 
rkvdec_rcb_buf_size(ctx, i);
+       }
+
+       if (sps->flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED) {
+               /* Set scaling matrix */
+               offset = offsetof(struct rkvdec_hevc_priv_tbl, scaling_list);
+               regs->common_addr.reg132_scanlist_addr = priv_start_addr + 
offset;
+       }
+
+       /* Set hw pps address */
+       offset = offsetof(struct rkvdec_hevc_priv_tbl, param_set);
+       regs->common_addr.reg131_gbl_base = priv_start_addr + offset;
+       regs->h26x_params.reg067_global_len = sizeof(struct 
rkvdec_hevc_sps_pps) / 16;
+
+       /* Set hw rps address */
+       offset = offsetof(struct rkvdec_hevc_priv_tbl, rps);
+       regs->common_addr.reg129_rps_base = priv_start_addr + offset;
+
+       /* Set cabac table */
+       offset = offsetof(struct rkvdec_hevc_priv_tbl, cabac_table);
+       regs->common_addr.reg130_cabactbl_base = priv_start_addr + offset;
+
+       rkvdec_write_regs(ctx);
+}
+
+static int rkvdec_hevc_validate_sps(struct rkvdec_ctx *ctx,
+                                   const struct v4l2_ctrl_hevc_sps *sps)
+{
+       if (sps->chroma_format_idc != 1)
+               /* Only 4:2:0 is supported */
+               return -EINVAL;
+
+       if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
+               /* Luma and chroma bit depth mismatch */
+               return -EINVAL;
+
+       if (sps->bit_depth_luma_minus8 != 0 && sps->bit_depth_luma_minus8 != 2)
+               /* Only 8-bit and 10-bit are supported */
+               return -EINVAL;
+
+       if (sps->pic_width_in_luma_samples > ctx->coded_fmt.fmt.pix_mp.width ||
+           sps->pic_height_in_luma_samples > ctx->coded_fmt.fmt.pix_mp.height)
+               return -EINVAL;
+
+       return 0;
+}
+
+static int rkvdec_hevc_start(struct rkvdec_ctx *ctx)
+{
+       struct rkvdec_dev *rkvdec = ctx->dev;
+       struct rkvdec_hevc_priv_tbl *priv_tbl;
+       struct rkvdec_hevc_ctx *hevc_ctx;
+       struct v4l2_ctrl *ctrl;
+       int ret;
+
+       ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl,
+                             V4L2_CID_STATELESS_HEVC_SPS);
+       if (!ctrl)
+               return -EINVAL;
+
+       ret = rkvdec_hevc_validate_sps(ctx, ctrl->p_new.p_hevc_sps);
+       if (ret)
+               return ret;
+
+       hevc_ctx = kzalloc(sizeof(*hevc_ctx), GFP_KERNEL);
+       if (!hevc_ctx)
+               return -ENOMEM;
+
+       priv_tbl = dma_alloc_coherent(rkvdec->dev, sizeof(*priv_tbl),
+                                     &hevc_ctx->priv_tbl.dma, GFP_KERNEL);
+       if (!priv_tbl) {
+               ret = -ENOMEM;
+               goto err_free_ctx;
+       }
+
+       hevc_ctx->priv_tbl.size = sizeof(*priv_tbl);
+       hevc_ctx->priv_tbl.cpu = priv_tbl;
+       memcpy(priv_tbl->cabac_table, rkvdec_hevc_cabac_table,
+              sizeof(rkvdec_hevc_cabac_table));
+
+       ctx->priv = hevc_ctx;
+       return 0;
+
+err_free_ctx:
+       kfree(hevc_ctx);
+       return ret;
+}
+
+static void rkvdec_hevc_stop(struct rkvdec_ctx *ctx)
+{
+       struct rkvdec_hevc_ctx *hevc_ctx = ctx->priv;
+       struct rkvdec_dev *rkvdec = ctx->dev;
+
+       dma_free_coherent(rkvdec->dev, hevc_ctx->priv_tbl.size,
+                         hevc_ctx->priv_tbl.cpu, hevc_ctx->priv_tbl.dma);
+       kfree(hevc_ctx);
+}
+
+static int rkvdec_hevc_run(struct rkvdec_ctx *ctx)
+{
+       struct rkvdec_dev *rkvdec = ctx->dev;
+       struct rkvdec_hevc_run run;
+       struct rkvdec_hevc_ctx *hevc_ctx = ctx->priv;
+       struct rkvdec_hevc_priv_tbl *tbl = hevc_ctx->priv_tbl.cpu;
+       u32 timeout_threshold;
+
+       rkvdec_hevc_run_preamble(ctx, &run);
+
+       /*
+        * On vdpu383, not setting the long and short term ref sets leads to 
IOMMU page faults.
+        * To be on the safe side for this new v4l2 control, write an error in 
the log and mark
+        * the buffer as failed by returning an error here.
+        */
+       if ((!ctx->has_sps_lt_rps && run.sps->num_long_term_ref_pics_sps) ||
+           (!ctx->has_sps_st_rps && run.sps->num_short_term_ref_pic_sets)) {
+               dev_err_ratelimited(rkvdec->dev, "Long and short term RPS not 
set\n");
+               return -EINVAL;
+       }
+
+       rkvdec_hevc_assemble_hw_scaling_list(ctx, &run, &tbl->scaling_list,
+                                            &hevc_ctx->scaling_matrix_cache);
+       assemble_hw_pps(ctx, &run);
+       rkvdec_hevc_assemble_hw_rps(&run, &tbl->rps, &hevc_ctx->st_cache);
+
+       config_registers(ctx, &run);
+
+       rkvdec_run_postamble(ctx, &run.base);
+
+       timeout_threshold = hevc_ctx->regs.common.reg013_core_timeout_threshold;
+       rkvdec_schedule_watchdog(rkvdec, timeout_threshold);
+
+       /* Start decoding! */
+       writel(timeout_threshold, rkvdec->link + 
VDPU383_LINK_TIMEOUT_THRESHOLD);
+       writel(VDPU383_IP_CRU_MODE, rkvdec->link + VDPU383_LINK_IP_ENABLE);
+       writel(VDPU383_DEC_E_BIT, rkvdec->link + VDPU383_LINK_DEC_ENABLE);
+
+       return 0;
+}
+
+static int rkvdec_hevc_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl)
+{
+       if (ctrl->id == V4L2_CID_STATELESS_HEVC_SPS)
+               return rkvdec_hevc_validate_sps(ctx, ctrl->p_new.p_hevc_sps);
+
+       return 0;
+}
+
+const struct rkvdec_coded_fmt_ops rkvdec_vdpu383_hevc_fmt_ops = {
+       .adjust_fmt = rkvdec_hevc_adjust_fmt,
+       .start = rkvdec_hevc_start,
+       .stop = rkvdec_hevc_stop,
+       .run = rkvdec_hevc_run,
+       .try_ctrl = rkvdec_hevc_try_ctrl,
+       .get_image_fmt = rkvdec_hevc_get_image_fmt,
+};
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec.c 
b/drivers/media/platform/rockchip/rkvdec/rkvdec.c
index ba34a165374a..967c452ab61f 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec.c
@@ -546,6 +546,22 @@ static const struct rkvdec_coded_fmt_desc 
vdpu381_coded_fmts[] = {
 };
 
 static const struct rkvdec_coded_fmt_desc vdpu383_coded_fmts[] = {
+       {
+               .fourcc = V4L2_PIX_FMT_HEVC_SLICE,
+               .frmsize = {
+                       .min_width = 64,
+                       .max_width = 65472,
+                       .step_width = 64,
+                       .min_height = 64,
+                       .max_height = 65472,
+                       .step_height = 16,
+               },
+               .ctrls = &vdpu38x_hevc_ctrls,
+               .ops = &rkvdec_vdpu383_hevc_fmt_ops,
+               .num_decoded_fmts = ARRAY_SIZE(rkvdec_hevc_decoded_fmts),
+               .decoded_fmts = rkvdec_hevc_decoded_fmts,
+               .subsystem_flags = VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF,
+       },
        {
                .fourcc = V4L2_PIX_FMT_H264_SLICE,
                .frmsize = {
@@ -1508,6 +1524,78 @@ static irqreturn_t rkvdec_irq_handler(int irq, void 
*priv)
        return variant->ops->irq_handler(ctx);
 }
 
+/*
+ * Flip one or more matrices along their main diagonal and flatten them
+ * before writing it to the memory.
+ * Convert:
+ * ABCD         AEIM
+ * EFGH     =>  BFJN     =>     AEIMBFJNCGKODHLP
+ * IJKL         CGKO
+ * MNOP         DHLP
+ */
+static void transpose_and_flatten_matrices(u8 *output, const u8 *input,
+                                          int matrices, int row_length)
+{
+       int i, j, row, x_offset, matrix_offset, rot_index, y_offset, 
matrix_size, new_value;
+
+       matrix_size = row_length * row_length;
+       for (i = 0; i < matrices; i++) {
+               row = 0;
+               x_offset = 0;
+               matrix_offset = i * matrix_size;
+               for (j = 0; j < matrix_size; j++) {
+                       y_offset = j - (row * row_length);
+                       rot_index = y_offset * row_length + x_offset;
+                       new_value = *(input + i * matrix_size + j);
+                       output[matrix_offset + rot_index] = new_value;
+                       if ((j + 1) % row_length == 0) {
+                               row += 1;
+                               x_offset += 1;
+                       }
+               }
+       }
+}
+
+/*
+ * VDPU383 needs a specific order:
+ * The 8x8 flatten matrix is based on 4x4 blocks.
+ * Each 4x4 block is written separately in order.
+ *
+ * Base data    =>  Transposed    VDPU383 transposed
+ *
+ * ABCDEFGH         AIQYaiqy      AIQYBJRZ
+ * IJKLMNOP         BJRZbjrz      CKS0DLT1
+ * QRSTUVWX         CKS0cks6      aiqybjrz
+ * YZ012345     =>  DLT1dlt7      cks6dlt7
+ * abcdefgh         EMU2emu8      EMU2FNV3
+ * ijklmnop         FNV3fnv9      GOW4HPX5
+ * qrstuvwx         GOW4gow#      emu8fnv9
+ * yz6789#$         HPX5hpx$      gow#hpx$
+ *
+ * As the function reads block of 4x4 it can be used for both 4x4 and 8x8 
matrices.
+ *
+ */
+static void vdpu383_flatten_matrices(u8 *output, const u8 *input, int 
matrices, int row_length)
+{
+       u8 block;
+       int i, j, matrix_offset, matrix_size, new_value, input_idx, 
line_offset, block_offset;
+
+       matrix_size = row_length * row_length;
+       for (i = 0; i < matrices; i++) {
+               matrix_offset = i * matrix_size;
+               for (j = 0; j < matrix_size; j++) {
+                       block = j / 16;
+                       line_offset = (j % 16) / 4;
+                       block_offset = (block & 1) * 32 + (block & 2) * 2;
+                       input_idx = ((j % 4) * row_length) + line_offset + 
block_offset;
+
+                       new_value = *(input + i * matrix_size + input_idx);
+
+                       output[matrix_offset + j] = new_value;
+               }
+       }
+}
+
 static void rkvdec_watchdog_func(struct work_struct *work)
 {
        struct rkvdec_dev *rkvdec;
@@ -1569,6 +1657,7 @@ static int rkvdec_disable_multicore(struct rkvdec_dev 
*rkvdec)
 static const struct rkvdec_variant_ops rk3399_variant_ops = {
        .irq_handler = rk3399_irq_handler,
        .colmv_size = rkvdec_colmv_size,
+       .flatten_matrices = transpose_and_flatten_matrices,
 };
 
 static const struct rkvdec_variant rk3288_rkvdec_variant = {
@@ -1612,6 +1701,7 @@ static const struct rcb_size_info vdpu381_rcb_sizes[] = {
 static const struct rkvdec_variant_ops vdpu381_variant_ops = {
        .irq_handler = vdpu381_irq_handler,
        .colmv_size = rkvdec_colmv_size,
+       .flatten_matrices = transpose_and_flatten_matrices,
 };
 
 static const struct rkvdec_variant vdpu381_variant = {
@@ -1638,6 +1728,7 @@ static const struct rcb_size_info vdpu383_rcb_sizes[] = {
 static const struct rkvdec_variant_ops vdpu383_variant_ops = {
        .irq_handler = vdpu383_irq_handler,
        .colmv_size = vdpu383_colmv_size,
+       .flatten_matrices = vdpu383_flatten_matrices,
 };
 
 static const struct rkvdec_variant vdpu383_variant = {
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec.h 
b/drivers/media/platform/rockchip/rkvdec/rkvdec.h
index c723eaaef982..a24be6638b6b 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec.h
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec.h
@@ -74,6 +74,7 @@ vb2_to_rkvdec_decoded_buf(struct vb2_buffer *buf)
 struct rkvdec_variant_ops {
        irqreturn_t (*irq_handler)(struct rkvdec_ctx *ctx);
        u32 (*colmv_size)(u16 width, u16 height);
+       void (*flatten_matrices)(u8 *output, const u8 *input, int matrices, int 
row_length);
 };
 
 struct rkvdec_variant {
@@ -193,5 +194,6 @@ extern const struct rkvdec_coded_fmt_ops 
rkvdec_vdpu381_hevc_fmt_ops;
 
 /* VDPU383 ops */
 extern const struct rkvdec_coded_fmt_ops rkvdec_vdpu383_h264_fmt_ops;
+extern const struct rkvdec_coded_fmt_ops rkvdec_vdpu383_hevc_fmt_ops;
 
 #endif /* RKVDEC_H_ */
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