src/gallium/drivers/radeon/radeon_vcn_dec_jpeg.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2018 Advanced Micro Devices, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include <assert.h>
  29 #include <stdio.h>
  30
  31 #include "pipe/p_video_codec.h"
  32
  33 #include "util/u_memory.h"
  34 #include "util/u_video.h"
  35
  36 #include "radeonsi/si_pipe.h"
  37 #include "radeon_video.h"
  38 #include "radeon_vcn_dec.h"
  39
  40 static struct pb_buffer *radeon_jpeg_get_decode_param(struct radeon_decoder *dec,
  41                                         struct pipe_video_buffer *target,
  42                                         struct pipe_picture_desc *picture)
  43 {
  44         struct si_texture *luma = (struct si_texture *)
  45                                 ((struct vl_video_buffer *)target)->resources[0];
  46         struct si_texture *chroma = (struct si_texture *)
  47                                 ((struct vl_video_buffer *)target)->resources[1];
  48
  49         dec->jpg.bsd_size = align(dec->bs_size, 128);
  50         dec->jpg.dt_luma_top_offset = luma->surface.u.gfx9.surf_offset;
  51         if (target->buffer_format == PIPE_FORMAT_NV12) {
  52                 dec->jpg.dt_chroma_top_offset = chroma->surface.u.gfx9.surf_offset;
  53                 dec->jpg.dt_pitch = luma->surface.u.gfx9.surf_pitch * luma->surface.blk_w;
  54         }
  55         else if (target->buffer_format == PIPE_FORMAT_YUYV)
  56                 dec->jpg.dt_pitch = luma->surface.u.gfx9.surf_pitch;
  57         dec->jpg.dt_uv_pitch = dec->jpg.dt_pitch / 2;
  58
  59         return luma->buffer.buf;
  60 }
  61
  62 /* add a new set register command to the IB */
  63 static void set_reg_jpeg(struct radeon_decoder *dec, unsigned reg,
  64                          unsigned cond, unsigned type, uint32_t val)
  65 {
  66         radeon_emit(dec->cs, RDECODE_PKTJ(SOC15_REG_ADDR(reg), cond, type));
  67         radeon_emit(dec->cs, val);
  68 }
  69
  70 /* send a bitstream buffer command */
  71 static void send_cmd_bitstream(struct radeon_decoder *dec,
  72                      struct pb_buffer* buf, uint32_t off,
  73                      enum radeon_bo_usage usage, enum radeon_bo_domain domain)
  74 {
  75         uint64_t addr;
  76
  77         // jpeg soft reset
  78         set_reg_jpeg(dec, mmUVD_JPEG_CNTL, COND0, TYPE0, 1);
  79
  80         // ensuring the Reset is asserted in SCLK domain
  81         set_reg_jpeg(dec, mmUVD_CTX_INDEX, COND0, TYPE0, 0x01C2);
  82         set_reg_jpeg(dec, mmUVD_CTX_DATA, COND0, TYPE0, 0x01400200);
  83         set_reg_jpeg(dec, mmUVD_CTX_INDEX, COND0, TYPE0, 0x01C3);
  84         set_reg_jpeg(dec, mmUVD_CTX_DATA, COND0, TYPE0, (1 << 9));
  85         set_reg_jpeg(dec, mmUVD_SOFT_RESET, COND0, TYPE3, (1 << 9));
  86
  87         // wait mem
  88         set_reg_jpeg(dec, mmUVD_JPEG_CNTL, COND0, TYPE0, 0);
  89
  90         // ensuring the Reset is de-asserted in SCLK domain
  91         set_reg_jpeg(dec, mmUVD_CTX_INDEX, COND0, TYPE0, 0x01C3);
  92         set_reg_jpeg(dec, mmUVD_CTX_DATA, COND0, TYPE0, (0 << 9));
  93         set_reg_jpeg(dec, mmUVD_SOFT_RESET, COND0, TYPE3, (1 << 9));
  94
  95         dec->ws->cs_add_buffer(dec->cs, buf, usage | RADEON_USAGE_SYNCHRONIZED,
  96                                                    domain, 0);
  97         addr = dec->ws->buffer_get_virtual_address(buf);
  98         addr = addr + off;
  99
 100         // set UVD_LMI_JPEG_READ_64BIT_BAR_LOW/HIGH based on bitstream buffer address
 101         set_reg_jpeg(dec, mmUVD_LMI_JPEG_READ_64BIT_BAR_HIGH, COND0, TYPE0, (addr >> 32));
 102         set_reg_jpeg(dec, mmUVD_LMI_JPEG_READ_64BIT_BAR_LOW, COND0, TYPE0, addr);
 103
 104         // set jpeg_rb_base
 105         set_reg_jpeg(dec, mmUVD_JPEG_RB_BASE, COND0, TYPE0, 0);
 106
 107         // set jpeg_rb_base
 108         set_reg_jpeg(dec, mmUVD_JPEG_RB_SIZE, COND0, TYPE0, 0xFFFFFFF0);
 109
 110         // set jpeg_rb_wptr
 111         set_reg_jpeg(dec, mmUVD_JPEG_RB_WPTR, COND0, TYPE0, (dec->jpg.bsd_size >> 2));
 112 }
 113
 114 /* send a target buffer command */
 115 static void send_cmd_target(struct radeon_decoder *dec,
 116                      struct pb_buffer* buf, uint32_t off,
 117                      enum radeon_bo_usage usage, enum radeon_bo_domain domain)
 118 {
 119         /* TODO */
 120 }
 121
 122 /**
 123  * send cmd for vcn jpeg
 124  */
 125 void send_cmd_jpeg(struct radeon_decoder *dec,
 126                            struct pipe_video_buffer *target,
 127                            struct pipe_picture_desc *picture)
 128 {
 129         struct pb_buffer *dt;
 130         struct rvid_buffer *bs_buf;
 131
 132         bs_buf = &dec->bs_buffers[dec->cur_buffer];
 133
 134         memset(dec->bs_ptr, 0, align(dec->bs_size, 128) - dec->bs_size);
 135         dec->ws->buffer_unmap(bs_buf->res->buf);
 136
 137         dt = radeon_jpeg_get_decode_param(dec, target, picture);
 138
 139         send_cmd_bitstream(dec, bs_buf->res->buf,
 140                  0, RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
 141         send_cmd_target(dec, dt, 0,
 142                  RADEON_USAGE_WRITE, RADEON_DOMAIN_VRAM);
 143 }