i965_drv_video: add support for H264 on Clarkdale/Arrandale

1 files changed, 801 insertions, 0 deletions

diff --git a/i965_avc_bsd.c b/i965_avc_bsd.c
new file mode 100644
index 0000000..9770207
--- /dev/null
+++ b/i965_avc_bsd.c
@@ -0,0 +1,801 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Xiang Haihao <haihao.xiang@intel.com>
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#include "va_backend.h"
+
+#include "intel_batchbuffer.h"
+#include "intel_driver.h"
+
+#include "i965_defines.h"
+#include "i965_drv_video.h"
+#include "i965_avc_bsd.h"
+#include "i965_media_h264.h"
+#include "i965_media.h"
+
+static void
+i965_bsd_ind_obj_base_address(VADriverContextP ctx, struct decode_state *decode_state)
+{
+    dri_bo *ind_bo = decode_state->slice_data->bo;
+
+    BEGIN_BCS_BATCH(ctx, 3);
+    OUT_BCS_BATCH(ctx, CMD_BSD_IND_OBJ_BASE_ADDR | (3 - 2));
+    OUT_BCS_RELOC(ctx, ind_bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, 0,
+                  0);
+    OUT_BCS_BATCH(ctx, 0);
+    ADVANCE_BCS_BATCH(ctx);
+}
+
+static void
+i965_avc_bsd_img_state(VADriverContextP ctx, struct decode_state *decode_state)
+{
+    int qm_present_flag;
+    int img_struct;
+    int mbaff_frame_flag;
+    unsigned int avc_it_command_header;
+    unsigned int width_in_mbs, height_in_mbs;
+    VAPictureParameterBufferH264 *pic_param;
+
+    if (decode_state->iq_matrix && decode_state->iq_matrix->buffer)
+        qm_present_flag = 1;
+    else
+        qm_present_flag = 0; /* built-in QM matrices */
+
+    assert(decode_state->pic_param && decode_state->pic_param->buffer);
+    pic_param = (VAPictureParameterBufferH264 *)decode_state->pic_param->buffer;
+
+    assert(!(pic_param->CurrPic.flags & VA_PICTURE_H264_INVALID));
+
+    if (pic_param->CurrPic.flags & VA_PICTURE_H264_TOP_FIELD)
+        img_struct = 1;
+    else if (pic_param->CurrPic.flags & VA_PICTURE_H264_BOTTOM_FIELD)
+        img_struct = 3;
+    else
+        img_struct = 0;
+
+    if ((img_struct & 0x1) == 0x1) {
+        assert(pic_param->pic_fields.bits.field_pic_flag == 0x1);
+    } else {
+        assert(pic_param->pic_fields.bits.field_pic_flag == 0x0);
+    }
+
+    if (pic_param->seq_fields.bits.frame_mbs_only_flag) { /* a frame containing only frame macroblocks */
+        assert(pic_param->seq_fields.bits.mb_adaptive_frame_field_flag == 0);
+        assert(pic_param->pic_fields.bits.field_pic_flag == 0);
+    } else {
+        assert(pic_param->seq_fields.bits.direct_8x8_inference_flag == 1); /* see H.264 spec */
+    }
+
+    mbaff_frame_flag = (pic_param->seq_fields.bits.mb_adaptive_frame_field_flag &&
+                        !pic_param->pic_fields.bits.field_pic_flag);
+
+    width_in_mbs = ((pic_param->picture_width_in_mbs_minus1 + 1) & 0xff);
+    height_in_mbs = ((pic_param->picture_height_in_mbs_minus1 + 1) & 0xff); /* frame height */
+                                                                               
+    assert(!((width_in_mbs * height_in_mbs) & 0x8000)); /* hardware requirement */
+
+    /* BSD unit doesn't support 4:2:2 and 4:4:4 picture */
+    assert(pic_param->seq_fields.bits.chroma_format_idc == 0 || /* monochrome picture */
+           pic_param->seq_fields.bits.chroma_format_idc == 1);  /* 4:2:0 */
+    assert(pic_param->seq_fields.bits.residual_colour_transform_flag == 0); /* only available for 4:4:4 */
+
+    avc_it_command_header = (CMD_MEDIA_OBJECT_EX | (12 - 2));
+
+    BEGIN_BCS_BATCH(ctx, 6);
+    OUT_BCS_BATCH(ctx, CMD_AVC_BSD_IMG_STATE | (6 - 2));
+    OUT_BCS_BATCH(ctx, 
+                  ((width_in_mbs * height_in_mbs) & 0x7fff));
+    OUT_BCS_BATCH(ctx, 
+                  (height_in_mbs << 16) | 
+                  (width_in_mbs << 0));
+    OUT_BCS_BATCH(ctx, 
+                  (pic_param->second_chroma_qp_index_offset << 24) |
+                  (pic_param->chroma_qp_index_offset << 16) | 
+                  (SCAN_RASTER_ORDER << 15) | /* AVC ILDB Data */
+                  (SCAN_SPECIAL_ORDER << 14) | /* AVC IT Command */
+                  (SCAN_RASTER_ORDER << 13) | /* AVC IT Data */
+                  (1 << 12) | /* always 1, hardware requirement */
+                  (qm_present_flag << 10) |
+                  (img_struct << 8) |
+                  (16 << 0)); /* FIXME: always support 16 reference frames ??? */
+    OUT_BCS_BATCH(ctx,
+                  (RESIDUAL_DATA_OFFSET << 24) | /* residual data offset */
+                  (0 << 17) | /* don't overwrite SRT */
+                  (0 << 16) | /* Un-SRT (Unsynchronized Root Thread) */
+                  (0 << 12) | /* FIXME: no 16MV ??? */
+                  (pic_param->seq_fields.bits.chroma_format_idc << 10) |
+                  (1 << 8)  | /* Enable ILDB writing output */
+                  (pic_param->pic_fields.bits.entropy_coding_mode_flag << 7) |
+                  ((!pic_param->pic_fields.bits.reference_pic_flag) << 6) |
+                  (pic_param->pic_fields.bits.constrained_intra_pred_flag << 5) |
+                  (pic_param->seq_fields.bits.direct_8x8_inference_flag << 4) |
+                  (pic_param->pic_fields.bits.transform_8x8_mode_flag << 3) |
+                  (pic_param->seq_fields.bits.frame_mbs_only_flag << 2) |
+                  (mbaff_frame_flag << 1) |
+                  (pic_param->pic_fields.bits.field_pic_flag << 0));
+    OUT_BCS_BATCH(ctx, avc_it_command_header);
+    ADVANCE_BCS_BATCH(ctx);
+}
+
+static void
+i965_avc_bsd_qm_state(VADriverContextP ctx, struct decode_state *decode_state)
+{
+    int cmd_len;
+    VAIQMatrixBufferH264 *iq_matrix;
+    VAPictureParameterBufferH264 *pic_param;
+
+    if (!decode_state->iq_matrix || !decode_state->iq_matrix->buffer)
+        return;
+
+    iq_matrix = (VAIQMatrixBufferH264 *)decode_state->iq_matrix->buffer;
+
+    assert(decode_state->pic_param && decode_state->pic_param->buffer);
+    pic_param = (VAPictureParameterBufferH264 *)decode_state->pic_param->buffer;
+
+    cmd_len = 2 + 6 * 4; /* always load six 4x4 scaling matrices */
+
+    if (pic_param->pic_fields.bits.transform_8x8_mode_flag)
+        cmd_len += 2 * 16; /* load two 8x8 scaling matrices */
+
+    BEGIN_BCS_BATCH(ctx, cmd_len);
+    OUT_BCS_BATCH(ctx, CMD_AVC_BSD_QM_STATE | (cmd_len - 2));
+
+    if (pic_param->pic_fields.bits.transform_8x8_mode_flag)
+        OUT_BCS_BATCH(ctx, 
+                      (0x0  << 8) | /* don't use default built-in matrices */
+                      (0xff << 0)); /* six 4x4 and two 8x8 scaling matrices */
+    else
+        OUT_BCS_BATCH(ctx, 
+                      (0x0  << 8) | /* don't use default built-in matrices */
+                      (0x3f << 0)); /* six 4x4 scaling matrices */
+
+    intel_batchbuffer_data_bcs(ctx, &iq_matrix->ScalingList4x4[0][0], 6 * 4 * 4);
+
+    if (pic_param->pic_fields.bits.transform_8x8_mode_flag)
+        intel_batchbuffer_data_bcs(ctx, &iq_matrix->ScalingList8x8[0][0], 2 * 16 * 4);
+
+    ADVANCE_BCS_BATCH(ctx);
+}
+
+static void
+i965_avc_bsd_slice_state(VADriverContextP ctx, 
+                         VAPictureParameterBufferH264 *pic_param, 
+                         VASliceParameterBufferH264 *slice_param)
+{
+    struct i965_driver_data *i965 = i965_driver_data(ctx);
+    struct i965_media_state *media_state = &i965->media_state;
+    struct i965_h264_context *i965_h264_context = (struct i965_h264_context *)media_state->private_context;
+    int present_flag, cmd_len, list, j;
+    struct {
+        unsigned char bottom_idc:1;
+        unsigned char frame_store_index:4;
+        unsigned char field_picture:1;
+        unsigned char long_term:1;
+        unsigned char non_exist:1;
+    } refs[32];
+    char weightoffsets[32 * 6];
+
+    /* don't issue SLICE_STATE for intra-prediction decoding */
+    if (slice_param->slice_type == SLICE_TYPE_I)
+        return;
+
+    cmd_len = 2;
+
+    if (slice_param->slice_type == SLICE_TYPE_P) {
+        present_flag = PRESENT_REF_LIST0;
+        cmd_len += 8;
+    } else { 
+        present_flag = PRESENT_REF_LIST0 | PRESENT_REF_LIST1;
+        cmd_len += 16;
+    }
+
+    if (slice_param->luma_weight_l0_flag | slice_param->chroma_weight_l0_flag) {
+        present_flag |= PRESENT_WEIGHT_OFFSET_L0;
+        cmd_len += 48;
+        assert((pic_param->pic_fields.bits.weighted_pred_flag == 1) || /* P slice */
+               (pic_param->pic_fields.bits.weighted_bipred_idc == 1)); /* B slice */
+    }
+
+    if (slice_param->luma_weight_l1_flag | slice_param->chroma_weight_l1_flag) {
+        present_flag |= PRESENT_WEIGHT_OFFSET_L1;
+        cmd_len += 48;
+        assert(slice_param->slice_type == SLICE_TYPE_B);
+        assert(pic_param->pic_fields.bits.weighted_bipred_idc == 1);
+    }
+
+    BEGIN_BCS_BATCH(ctx, cmd_len);
+    OUT_BCS_BATCH(ctx, CMD_AVC_BSD_SLICE_STATE | (cmd_len - 2));
+    OUT_BCS_BATCH(ctx, present_flag);
+
+    for (list = 0; list < 2; list++) {
+        int flag;
+        VAPictureH264 *va_pic;
+
+        if (list == 0) {
+            flag = PRESENT_REF_LIST0;
+            va_pic = slice_param->RefPicList0;
+        } else {
+            flag = PRESENT_REF_LIST1;
+            va_pic = slice_param->RefPicList1;
+        }
+
+        if (!(present_flag & flag))
+            continue;
+
+        for (j = 0; j < 32; j++) {
+            if (va_pic->flags & VA_PICTURE_H264_INVALID) {
+                refs[j].non_exist = 1;
+                refs[j].long_term = 1;
+                refs[j].field_picture = 1;
+                refs[j].frame_store_index = 0xf;
+                refs[j].bottom_idc = 1;
+            } else {
+                int frame_idx;
+                
+                for (frame_idx = 0; frame_idx < 16; frame_idx++) {
+                    VAPictureH264 *ref_pic = &pic_param->ReferenceFrames[frame_idx];
+                    
+                    if (!(ref_pic->flags & VA_PICTURE_H264_INVALID)) {
+                        if (ref_pic->picture_id == va_pic->picture_id)
+                            break;
+                    }       
+                }
+                
+                assert(frame_idx < 16);
+                
+                refs[j].non_exist = 0;
+                refs[j].long_term = !!(va_pic->flags & VA_PICTURE_H264_LONG_TERM_REFERENCE);
+                refs[j].field_picture = !!(va_pic->flags & 
+                                           (VA_PICTURE_H264_TOP_FIELD | 
+                                            VA_PICTURE_H264_BOTTOM_FIELD));
+                refs[j].frame_store_index = frame_idx;
+                refs[j].bottom_idc = !!(va_pic->flags & VA_PICTURE_H264_BOTTOM_FIELD);
+            }
+
+            va_pic++;
+        }
+        
+        intel_batchbuffer_data_bcs(ctx, refs, sizeof(refs));
+    }
+
+    i965_h264_context->weight128_luma_l0 = 0;
+    i965_h264_context->weight128_luma_l1 = 0;
+    i965_h264_context->weight128_chroma_l0 = 0;
+    i965_h264_context->weight128_chroma_l1 = 0;
+
+    i965_h264_context->weight128_offset0_flag = 0;
+    i965_h264_context->weight128_offset0 = 0;
+
+    if (present_flag & PRESENT_WEIGHT_OFFSET_L0) {
+        for (j = 0; j < 32; j++) {
+            weightoffsets[j * 6 + 0] = slice_param->luma_offset_l0[j];
+            weightoffsets[j * 6 + 1] = slice_param->luma_weight_l0[j];
+            weightoffsets[j * 6 + 2] = slice_param->chroma_offset_l0[j][0];
+            weightoffsets[j * 6 + 3] = slice_param->chroma_weight_l0[j][0];
+            weightoffsets[j * 6 + 4] = slice_param->chroma_offset_l0[j][1];
+            weightoffsets[j * 6 + 5] = slice_param->chroma_weight_l0[j][1];
+
+            if (pic_param->pic_fields.bits.weighted_bipred_idc == 1) {
+                if (i965_h264_context->use_hw_w128) {
+                    if (slice_param->luma_weight_l0[j] == 128)
+                        i965_h264_context->weight128_luma_l0 |= (1 << j);
+
+                    if (slice_param->chroma_weight_l0[j][0] == 128 ||
+                        slice_param->chroma_weight_l0[j][1] == 128)
+                        i965_h264_context->weight128_chroma_l0 |= (1 << j);
+                } else {
+                    /* FIXME: workaround for weight 128 */
+                    if (slice_param->luma_weight_l0[j] == 128 ||
+                        slice_param->chroma_weight_l0[j][0] == 128 ||
+                        slice_param->chroma_weight_l0[j][1] == 128)
+                        i965_h264_context->weight128_offset0_flag = 1;
+                }
+            }
+        }
+
+        intel_batchbuffer_data_bcs(ctx, weightoffsets, sizeof(weightoffsets));
+    }
+
+    if (present_flag & PRESENT_WEIGHT_OFFSET_L1) {
+        for (j = 0; j < 32; j++) {
+            weightoffsets[j * 6 + 0] = slice_param->luma_offset_l1[j];
+            weightoffsets[j * 6 + 1] = slice_param->luma_weight_l1[j];
+            weightoffsets[j * 6 + 2] = slice_param->chroma_offset_l1[j][0];
+            weightoffsets[j * 6 + 3] = slice_param->chroma_weight_l1[j][0];
+            weightoffsets[j * 6 + 4] = slice_param->chroma_offset_l1[j][1];
+            weightoffsets[j * 6 + 5] = slice_param->chroma_weight_l1[j][1];
+
+            if (pic_param->pic_fields.bits.weighted_bipred_idc == 1) {
+                if (i965_h264_context->use_hw_w128) {
+                    if (slice_param->luma_weight_l1[j] == 128)
+                        i965_h264_context->weight128_luma_l1 |= (1 << j);
+
+                    if (slice_param->chroma_weight_l1[j][0] == 128 ||
+                        slice_param->chroma_weight_l1[j][1] == 128)
+                        i965_h264_context->weight128_chroma_l1 |= (1 << j);
+                } else {
+                    if (slice_param->luma_weight_l0[j] == 128 ||
+                        slice_param->chroma_weight_l0[j][0] == 128 ||
+                        slice_param->chroma_weight_l0[j][1] == 128)
+                        i965_h264_context->weight128_offset0_flag = 1;
+                }
+            }
+        }
+
+        intel_batchbuffer_data_bcs(ctx, weightoffsets, sizeof(weightoffsets));
+    }
+
+    ADVANCE_BCS_BATCH(ctx);
+}
+
+static void
+i965_avc_bsd_buf_base_state(VADriverContextP ctx, struct decode_state *decode_state)
+{
+    struct i965_driver_data *i965 = i965_driver_data(ctx);
+    struct i965_media_state *media_state = &i965->media_state;
+    struct i965_h264_context *i965_h264_context;
+    struct i965_avc_bsd_context *i965_avc_bsd_context;
+    int i;
+    VAPictureParameterBufferH264 *pic_param;
+    VAPictureH264 *va_pic;
+    struct object_surface *obj_surface;
+
+    assert(decode_state->pic_param && decode_state->pic_param->buffer);
+    pic_param = (VAPictureParameterBufferH264 *)decode_state->pic_param->buffer;
+
+    assert(media_state->private_context);
+    i965_h264_context = (struct i965_h264_context *)media_state->private_context;
+    i965_avc_bsd_context = &i965_h264_context->i965_avc_bsd_context;
+
+    BEGIN_BCS_BATCH(ctx, 74);
+    OUT_BCS_BATCH(ctx, CMD_AVC_BSD_BUF_BASE_STATE | (74 - 2));
+    OUT_BCS_RELOC(ctx, i965_avc_bsd_context->bsd_raw_store.bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  0);
+    OUT_BCS_RELOC(ctx, i965_avc_bsd_context->mpr_row_store.bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  0);
+    OUT_BCS_RELOC(ctx, i965_h264_context->avc_it_command_mb_info.bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  i965_h264_context->avc_it_command_mb_info.mbs * i965_h264_context->use_avc_hw_scoreboard * MB_CMD_IN_BYTES);
+    OUT_BCS_RELOC(ctx, i965_h264_context->avc_it_data.bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  (i965_h264_context->avc_it_data.write_offset << 6));
+    OUT_BCS_RELOC(ctx, i965_avc_bsd_context->ildb_data.bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  0);
+
+    for (i = 0; i < 16; i++) {
+        va_pic = &pic_param->ReferenceFrames[i];
+
+        if (!(va_pic->flags & VA_PICTURE_H264_INVALID)) {
+            obj_surface = SURFACE(va_pic->picture_id);
+            assert(obj_surface);
+            OUT_BCS_RELOC(ctx, obj_surface->direct_mv_wr_top_bo,
+                          I915_GEM_DOMAIN_INSTRUCTION, 0,
+                          0);
+
+            if (pic_param->pic_fields.bits.field_pic_flag && 
+                !pic_param->seq_fields.bits.direct_8x8_inference_flag)
+                OUT_BCS_RELOC(ctx, obj_surface->direct_mv_wr_bottom_bo,
+                              I915_GEM_DOMAIN_INSTRUCTION, 0,
+                              0);
+            else 
+                OUT_BCS_RELOC(ctx, obj_surface->direct_mv_wr_top_bo,
+                              I915_GEM_DOMAIN_INSTRUCTION, 0,
+                              0);
+        } else {
+            OUT_BCS_BATCH(ctx, 0);
+            OUT_BCS_BATCH(ctx, 0);
+        }
+    }
+
+    va_pic = &pic_param->CurrPic;
+    assert(!(va_pic->flags & VA_PICTURE_H264_INVALID));
+    obj_surface = SURFACE(va_pic->picture_id);
+    assert(obj_surface);
+    OUT_BCS_RELOC(ctx, obj_surface->direct_mv_wr_top_bo,
+                  I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  0);
+
+    if (pic_param->pic_fields.bits.field_pic_flag && 
+        !pic_param->seq_fields.bits.direct_8x8_inference_flag)
+        OUT_BCS_RELOC(ctx, obj_surface->direct_mv_wr_bottom_bo,
+                      I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                      0);
+    else
+        OUT_BCS_RELOC(ctx, obj_surface->direct_mv_wr_top_bo,
+                      I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                      0);
+
+    /* POC List */
+    for (i = 0; i < 16; i++) {
+        va_pic = &pic_param->ReferenceFrames[i];
+        if (!(va_pic->flags & VA_PICTURE_H264_INVALID)) {
+            OUT_BCS_BATCH(ctx, va_pic->TopFieldOrderCnt);
+            OUT_BCS_BATCH(ctx, va_pic->BottomFieldOrderCnt);
+        } else {
+            OUT_BCS_BATCH(ctx, 0);
+            OUT_BCS_BATCH(ctx, 0);
+        }
+    }
+
+    OUT_BCS_BATCH(ctx, va_pic->TopFieldOrderCnt);
+    OUT_BCS_BATCH(ctx, va_pic->BottomFieldOrderCnt);
+
+    ADVANCE_BCS_BATCH(ctx);
+}
+
+static void
+g4x_avc_bsd_object(VADriverContextP ctx, 
+                   struct decode_state *decode_state,
+                   VAPictureParameterBufferH264 *pic_param,
+                   VASliceParameterBufferH264 *slice_param)
+{
+    int width_in_mbs = pic_param->picture_width_in_mbs_minus1 + 1;
+    int height_in_mbs = pic_param->picture_height_in_mbs_minus1 + 1; /* frame height */
+
+    if (slice_param) {
+        int encrypted, counter_value, cmd_len;
+        int slice_hor_pos, slice_ver_pos;
+        int num_ref_idx_l0, num_ref_idx_l1;
+        int field_or_mbaff_picture = (pic_param->pic_fields.bits.field_pic_flag ||
+                                      pic_param->seq_fields.bits.mb_adaptive_frame_field_flag);
+        int slice_data_bit_offset;
+        int weighted_pred_idc = 0;
+
+        encrypted = 0; /* FIXME: which flag in VAAPI is used for encryption? */
+
+        if (encrypted) {
+            cmd_len = 9;
+            counter_value = 0; /* FIXME: ??? */
+        } else 
+            cmd_len = 8;
+
+        slice_data_bit_offset = slice_param->slice_data_bit_offset;    
+
+        if (pic_param->pic_fields.bits.entropy_coding_mode_flag == ENTROPY_CABAC)
+            slice_data_bit_offset = ALIGN(slice_data_bit_offset, 0x8);
+
+        if (slice_param->slice_type == SLICE_TYPE_I) {
+            assert(slice_param->num_ref_idx_l0_active_minus1 == 0);
+            assert(slice_param->num_ref_idx_l1_active_minus1 == 0);
+            num_ref_idx_l0 = 0;
+            num_ref_idx_l1 = 0;
+        } else if (slice_param->slice_type == SLICE_TYPE_P) {
+            assert(slice_param->num_ref_idx_l1_active_minus1 == 0);
+            num_ref_idx_l0 = slice_param->num_ref_idx_l0_active_minus1 + 1;
+            num_ref_idx_l1 = 0;
+        } else {
+            num_ref_idx_l0 = slice_param->num_ref_idx_l0_active_minus1 + 1;
+            num_ref_idx_l1 = slice_param->num_ref_idx_l1_active_minus1 + 1;
+        }
+
+        if (slice_param->slice_type == SLICE_TYPE_P)
+            weighted_pred_idc = pic_param->pic_fields.bits.weighted_pred_flag;
+        else if (slice_param->slice_type == SLICE_TYPE_B)
+            weighted_pred_idc = pic_param->pic_fields.bits.weighted_bipred_idc;
+
+        slice_hor_pos = slice_param->first_mb_in_slice % width_in_mbs; 
+        slice_ver_pos = slice_param->first_mb_in_slice / width_in_mbs;
+        slice_ver_pos <<= (1 + field_or_mbaff_picture); /* FIXME: right ??? */
+
+        BEGIN_BCS_BATCH(ctx, cmd_len);
+        OUT_BCS_BATCH(ctx, CMD_AVC_BSD_OBJECT | (cmd_len - 2));
+        OUT_BCS_BATCH(ctx, 
+                      (encrypted << 31) |
+                      ((slice_param->slice_data_size - (slice_data_bit_offset >> 3)) << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (slice_param->slice_data_offset +
+                       (slice_data_bit_offset >> 3)));
+        OUT_BCS_BATCH(ctx, 
+                      (0 << 31) | /* concealment mode: 0->intra 16x16 prediction, 1->inter P Copy */
+                      (0 << 14) | /* ignore BSDPrematureComplete Error handling */
+                      (0 << 13) | /* FIXME: ??? */
+                      (0 << 12) | /* ignore MPR Error handling */
+                      (0 << 10) | /* ignore Entropy Error handling */
+                      (0 << 8)  | /* ignore MB Header Error handling */
+                      (slice_param->slice_type << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (num_ref_idx_l1 << 24) |
+                      (num_ref_idx_l0 << 16) |
+                      (slice_param->chroma_log2_weight_denom << 8) |
+                      (slice_param->luma_log2_weight_denom << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (weighted_pred_idc << 30) |
+                      (slice_param->direct_spatial_mv_pred_flag << 29) |
+                      (slice_param->disable_deblocking_filter_idc << 27) |
+                      (slice_param->cabac_init_idc << 24) |
+                      ((pic_param->pic_init_qp_minus26 + 26 + slice_param->slice_qp_delta) << 16) |
+                      ((slice_param->slice_beta_offset_div2 & 0xf) << 8) |
+                      ((slice_param->slice_alpha_c0_offset_div2 & 0xf) << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (slice_ver_pos << 24) |
+                      (slice_hor_pos << 16) | 
+                      (slice_param->first_mb_in_slice << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (0 << 7) | /* FIXME: ??? */
+                      ((0x7 - (slice_data_bit_offset & 0x7)) << 0));
+
+        if (encrypted) {
+            OUT_BCS_BATCH(ctx, counter_value);
+        }
+
+        ADVANCE_BCS_BATCH(ctx); 
+    } else {
+        BEGIN_BCS_BATCH(ctx, 8); 
+        OUT_BCS_BATCH(ctx, CMD_AVC_BSD_OBJECT | (8 - 2));
+        OUT_BCS_BATCH(ctx, 0); /* indirect data length for phantom slice is 0 */
+        OUT_BCS_BATCH(ctx, 0); /* indirect data start address for phantom slice is 0 */
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, width_in_mbs * height_in_mbs / (1 + !!pic_param->pic_fields.bits.field_pic_flag));
+        OUT_BCS_BATCH(ctx, 0);
+        ADVANCE_BCS_BATCH(ctx);
+    }
+}
+
+static void
+ironlake_avc_bsd_object(VADriverContextP ctx, 
+                        struct decode_state *decode_state,
+                        VAPictureParameterBufferH264 *pic_param,
+                        VASliceParameterBufferH264 *slice_param)
+{
+    int width_in_mbs = pic_param->picture_width_in_mbs_minus1 + 1;
+    int height_in_mbs = pic_param->picture_height_in_mbs_minus1 + 1; /* frame height */
+
+    if (slice_param) {
+        struct i965_driver_data *i965 = i965_driver_data(ctx);
+        struct i965_media_state *media_state = &i965->media_state;
+        struct i965_h264_context *i965_h264_context = (struct i965_h264_context *)media_state->private_context;
+        int encrypted, counter_value;
+        int slice_hor_pos, slice_ver_pos;
+        int num_ref_idx_l0, num_ref_idx_l1;
+        int field_or_mbaff_picture = (pic_param->pic_fields.bits.field_pic_flag ||
+                                      pic_param->seq_fields.bits.mb_adaptive_frame_field_flag);
+        int slice_data_bit_offset;
+        int weighted_pred_idc = 0;
+
+        encrypted = 0; /* FIXME: which flag in VAAPI is used for encryption? */
+
+        if (encrypted) {
+            counter_value = 0; /* FIXME: ??? */
+        } else 
+            counter_value = 0;
+
+        slice_data_bit_offset = slice_param->slice_data_bit_offset;    
+
+        if (pic_param->pic_fields.bits.entropy_coding_mode_flag == ENTROPY_CABAC)
+            slice_data_bit_offset = ALIGN(slice_data_bit_offset, 0x8);
+
+        if (slice_param->slice_type == SLICE_TYPE_I) {
+            assert(slice_param->num_ref_idx_l0_active_minus1 == 0);
+            assert(slice_param->num_ref_idx_l1_active_minus1 == 0);
+            num_ref_idx_l0 = 0;
+            num_ref_idx_l1 = 0;
+        } else if (slice_param->slice_type == SLICE_TYPE_P) {
+            assert(slice_param->num_ref_idx_l1_active_minus1 == 0);
+            num_ref_idx_l0 = slice_param->num_ref_idx_l0_active_minus1 + 1;
+            num_ref_idx_l1 = 0;
+        } else {
+            num_ref_idx_l0 = slice_param->num_ref_idx_l0_active_minus1 + 1;
+            num_ref_idx_l1 = slice_param->num_ref_idx_l1_active_minus1 + 1;
+        }
+
+        if (slice_param->slice_type == SLICE_TYPE_P)
+            weighted_pred_idc = pic_param->pic_fields.bits.weighted_pred_flag;
+        else if (slice_param->slice_type == SLICE_TYPE_B)
+            weighted_pred_idc = pic_param->pic_fields.bits.weighted_bipred_idc;
+
+        slice_hor_pos = slice_param->first_mb_in_slice % width_in_mbs; 
+        slice_ver_pos = slice_param->first_mb_in_slice / width_in_mbs;
+        slice_ver_pos <<= (1 + field_or_mbaff_picture); /* FIXME: right ??? */
+
+        BEGIN_BCS_BATCH(ctx, 16);
+        OUT_BCS_BATCH(ctx, CMD_AVC_BSD_OBJECT | (16 - 2));
+        OUT_BCS_BATCH(ctx, 
+                      (encrypted << 31) |
+                      (0 << 30) | /* FIXME: packet based bit stream */
+                      (0 << 29) | /* FIXME: packet format */
+                      ((slice_param->slice_data_size - (slice_data_bit_offset >> 3)) << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (slice_param->slice_data_offset +
+                       (slice_data_bit_offset >> 3)));
+        OUT_BCS_BATCH(ctx, 
+                      (0 << 31) | /* concealment mode: 0->intra 16x16 prediction, 1->inter P Copy */
+                      (0 << 14) | /* ignore BSDPrematureComplete Error handling */
+                      (0 << 13) | /* FIXME: ??? */
+                      (0 << 12) | /* ignore MPR Error handling */
+                      (0 << 10) | /* ignore Entropy Error handling */
+                      (0 << 8)  | /* ignore MB Header Error handling */
+                      (slice_param->slice_type << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (num_ref_idx_l1 << 24) |
+                      (num_ref_idx_l0 << 16) |
+                      (slice_param->chroma_log2_weight_denom << 8) |
+                      (slice_param->luma_log2_weight_denom << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (weighted_pred_idc << 30) |
+                      (slice_param->direct_spatial_mv_pred_flag << 29) |
+                      (slice_param->disable_deblocking_filter_idc << 27) |
+                      (slice_param->cabac_init_idc << 24) |
+                      ((pic_param->pic_init_qp_minus26 + 26 + slice_param->slice_qp_delta) << 16) |
+                      ((slice_param->slice_beta_offset_div2 & 0xf) << 8) |
+                      ((slice_param->slice_alpha_c0_offset_div2 & 0xf) << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (slice_ver_pos << 24) |
+                      (slice_hor_pos << 16) | 
+                      (slice_param->first_mb_in_slice << 0));
+        OUT_BCS_BATCH(ctx, 
+                      (0 << 7) | /* FIXME: ??? */
+                      ((0x7 - (slice_data_bit_offset & 0x7)) << 0));
+        OUT_BCS_BATCH(ctx, counter_value);
+        
+        /* FIXME: dw9-dw11 */
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, i965_h264_context->weight128_luma_l0);
+        OUT_BCS_BATCH(ctx, i965_h264_context->weight128_luma_l1);
+        OUT_BCS_BATCH(ctx, i965_h264_context->weight128_chroma_l0);
+        OUT_BCS_BATCH(ctx, i965_h264_context->weight128_chroma_l1);
+
+        ADVANCE_BCS_BATCH(ctx); 
+    } else {
+        BEGIN_BCS_BATCH(ctx, 16);
+        OUT_BCS_BATCH(ctx, CMD_AVC_BSD_OBJECT | (16 - 2));
+        OUT_BCS_BATCH(ctx, 0); /* indirect data length for phantom slice is 0 */
+        OUT_BCS_BATCH(ctx, 0); /* indirect data start address for phantom slice is 0 */
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, width_in_mbs * height_in_mbs / (1 + !!pic_param->pic_fields.bits.field_pic_flag));
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        OUT_BCS_BATCH(ctx, 0);
+        ADVANCE_BCS_BATCH(ctx);
+    }
+}
+
+static void
+i965_avc_bsd_object(VADriverContextP ctx, 
+                    struct decode_state *decode_state,
+                    VAPictureParameterBufferH264 *pic_param,
+                    VASliceParameterBufferH264 *slice_param)
+{
+    struct i965_driver_data *i965 = i965_driver_data(ctx);
+
+    if (IS_IRONLAKE(i965->intel.device_id))
+        ironlake_avc_bsd_object(ctx, decode_state, pic_param, slice_param);
+    else
+        g4x_avc_bsd_object(ctx, decode_state, pic_param, slice_param);
+}
+
+static void
+i965_avc_bsd_phantom_slice(VADriverContextP ctx, 
+                           struct decode_state *decode_state,
+                           VAPictureParameterBufferH264 *pic_param)
+{
+    i965_avc_bsd_object(ctx, decode_state, pic_param, NULL);
+}
+
+void 
+i965_avc_bsd_pipeline(VADriverContextP ctx, struct decode_state *decode_state)
+{
+    int i;
+    VAPictureParameterBufferH264 *pic_param;
+    VASliceParameterBufferH264 *slice_param;
+
+    assert(decode_state->pic_param && decode_state->pic_param->buffer);
+    pic_param = (VAPictureParameterBufferH264 *)decode_state->pic_param->buffer;
+    assert(decode_state->slice_param && decode_state->slice_param->buffer);
+    slice_param = (VASliceParameterBufferH264 *)decode_state->slice_param->buffer;
+
+    intel_batchbuffer_start_atomic_bcs(ctx, 0x1000);
+    i965_bsd_ind_obj_base_address(ctx, decode_state);
+
+    assert(decode_state->num_slices == 1); /* FIXME: */
+    for (i = 0; i < decode_state->num_slices; i++) {
+        assert(slice_param->slice_data_flag == VA_SLICE_DATA_FLAG_ALL);
+        assert((slice_param->slice_type == SLICE_TYPE_I) ||
+               (slice_param->slice_type == SLICE_TYPE_P) ||
+               (slice_param->slice_type == SLICE_TYPE_B)); /* hardware requirement */
+
+        if (i == 0) {
+            i965_avc_bsd_img_state(ctx, decode_state);
+            i965_avc_bsd_qm_state(ctx, decode_state);
+        }
+
+        i965_avc_bsd_slice_state(ctx, pic_param, slice_param);
+        i965_avc_bsd_buf_base_state(ctx, decode_state);
+        i965_avc_bsd_object(ctx, decode_state, pic_param, slice_param);
+        slice_param++;
+    }
+
+    i965_avc_bsd_phantom_slice(ctx, decode_state, pic_param);
+    intel_batchbuffer_emit_mi_flush_bcs(ctx);
+    intel_batchbuffer_end_atomic_bcs(ctx);
+    intel_batchbuffer_flush_bcs(ctx);
+}
+
+void 
+i965_avc_bsd_decode_init(VADriverContextP ctx)
+{
+    struct i965_driver_data *i965 = i965_driver_data(ctx);
+    struct i965_media_state *media_state = &i965->media_state;
+    struct i965_h264_context *i965_h264_context = (struct i965_h264_context *)media_state->private_context;
+    struct i965_avc_bsd_context *i965_avc_bsd_context;
+    dri_bo *bo;
+
+    assert(i965_h264_context);
+    i965_avc_bsd_context = &i965_h264_context->i965_avc_bsd_context;
+
+    dri_bo_unreference(i965_avc_bsd_context->bsd_raw_store.bo);
+    bo = dri_bo_alloc(i965->intel.bufmgr,
+                      "bsd raw store",
+                      0x4000, /* at least 11520 bytes to support 120 MBs per row */
+                      64);
+    assert(bo);
+    i965_avc_bsd_context->bsd_raw_store.bo = bo;
+
+    dri_bo_unreference(i965_avc_bsd_context->mpr_row_store.bo);
+    bo = dri_bo_alloc(i965->intel.bufmgr,
+                      "mpr row store",
+                      0x2000, /* at least 7680 bytes to support 120 MBs per row */
+                      64);
+    assert(bo);
+    i965_avc_bsd_context->mpr_row_store.bo = bo;
+
+    dri_bo_unreference(i965_avc_bsd_context->ildb_data.bo);
+    bo = dri_bo_alloc(i965->intel.bufmgr,
+                      "ildb data",
+                      0x100000, /* at least 1044480 bytes */
+                      64);
+    assert(bo);
+    i965_avc_bsd_context->ildb_data.bo = bo;
+}
+
+Bool 
+i965_avc_bsd_ternimate(struct i965_avc_bsd_context *i965_avc_bsd_context)
+{
+    dri_bo_unreference(i965_avc_bsd_context->bsd_raw_store.bo);
+    dri_bo_unreference(i965_avc_bsd_context->mpr_row_store.bo);
+    dri_bo_unreference(i965_avc_bsd_context->ildb_data.bo);
+
+    return True;
+}