VME: Handle multiple macroblocks in a single thread
[profile/ivi/vaapi-intel-driver.git] / src / gen6_vme.c
1 /*
2  * Copyright © 2010-2011 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the
6  * "Software"), to deal in the Software without restriction, including
7  * without limitation the rights to use, copy, modify, merge, publish,
8  * distribute, sub license, and/or sell copies of the Software, and to
9  * permit persons to whom the Software is furnished to do so, subject to
10  * the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial portions
14  * of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
20  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors:
25  *    Zhou Chang <chang.zhou@intel.com>
26  *
27  */
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <assert.h>
33
34 #include "intel_batchbuffer.h"
35 #include "intel_driver.h"
36
37 #include "i965_defines.h"
38 #include "i965_drv_video.h"
39 #include "i965_encoder.h"
40 #include "gen6_vme.h"
41
42 #define SURFACE_STATE_PADDED_SIZE_0_GEN7        ALIGN(sizeof(struct gen7_surface_state), 32)
43 #define SURFACE_STATE_PADDED_SIZE_1_GEN7        ALIGN(sizeof(struct gen7_surface_state2), 32)
44 #define SURFACE_STATE_PADDED_SIZE_GEN7          MAX(SURFACE_STATE_PADDED_SIZE_0_GEN7, SURFACE_STATE_PADDED_SIZE_1_GEN7)
45
46 #define SURFACE_STATE_PADDED_SIZE_0_GEN6        ALIGN(sizeof(struct i965_surface_state), 32)
47 #define SURFACE_STATE_PADDED_SIZE_1_GEN6        ALIGN(sizeof(struct i965_surface_state2), 32)
48 #define SURFACE_STATE_PADDED_SIZE_GEN6          MAX(SURFACE_STATE_PADDED_SIZE_0_GEN6, SURFACE_STATE_PADDED_SIZE_1_GEN6)
49
50 #define SURFACE_STATE_PADDED_SIZE               MAX(SURFACE_STATE_PADDED_SIZE_GEN6, SURFACE_STATE_PADDED_SIZE_GEN7)
51 #define SURFACE_STATE_OFFSET(index)             (SURFACE_STATE_PADDED_SIZE * index)
52 #define BINDING_TABLE_OFFSET(index)             (SURFACE_STATE_OFFSET(MAX_MEDIA_SURFACES_GEN6) + sizeof(unsigned int) * index)
53
54 #define VME_INTRA_SHADER        0       
55 #define VME_INTER_SHADER        1
56 #define VME_BATCHBUFFER         2
57
58 #define CURBE_ALLOCATION_SIZE   37              /* in 256-bit */
59 #define CURBE_TOTAL_DATA_LENGTH (4 * 32)        /* in byte, it should be less than or equal to CURBE_ALLOCATION_SIZE * 32 */
60 #define CURBE_URB_ENTRY_LENGTH  4               /* in 256-bit, it should be less than or equal to CURBE_TOTAL_DATA_LENGTH / 32 */
61   
62 static const uint32_t gen6_vme_intra_frame[][4] = {
63 #include "shaders/vme/intra_frame.g6b"
64 };
65
66 static const uint32_t gen6_vme_inter_frame[][4] = {
67 #include "shaders/vme/inter_frame.g6b"
68 };
69
70 static const uint32_t gen6_vme_batchbuffer[][4] = {
71 #include "shaders/vme/batchbuffer.g6b"
72 };
73
74 static struct i965_kernel gen6_vme_kernels[] = {
75     {
76         "VME Intra Frame",
77         VME_INTRA_SHADER,                                                                               /*index*/
78         gen6_vme_intra_frame,                   
79         sizeof(gen6_vme_intra_frame),           
80         NULL
81     },
82     {
83         "VME inter Frame",
84         VME_INTER_SHADER,
85         gen6_vme_inter_frame,
86         sizeof(gen6_vme_inter_frame),
87         NULL
88     },
89     {
90         "VME BATCHBUFFER",
91         VME_BATCHBUFFER,
92         gen6_vme_batchbuffer,
93         sizeof(gen6_vme_batchbuffer),
94         NULL
95     },
96 };
97
98 static const uint32_t gen7_vme_intra_frame[][4] = {
99 #include "shaders/vme/intra_frame.g7b"
100 };
101
102 static const uint32_t gen7_vme_inter_frame[][4] = {
103 #include "shaders/vme/inter_frame.g7b"
104 };
105
106 static const uint32_t gen7_vme_batchbuffer[][4] = {
107 #include "shaders/vme/batchbuffer.g7b"
108 };
109
110 static struct i965_kernel gen7_vme_kernels[] = {
111     {
112         "VME Intra Frame",
113         VME_INTRA_SHADER,                                                                               /*index*/
114         gen7_vme_intra_frame,                   
115         sizeof(gen7_vme_intra_frame),           
116         NULL
117     },
118     {
119         "VME inter Frame",
120         VME_INTER_SHADER,
121         gen7_vme_inter_frame,
122         sizeof(gen7_vme_inter_frame),
123         NULL
124     },
125     {
126         "VME BATCHBUFFER",
127         VME_BATCHBUFFER,
128         gen7_vme_batchbuffer,
129         sizeof(gen7_vme_batchbuffer),
130         NULL
131     },
132 };
133
134 /* only used for VME source surface state */
135 static void 
136 gen6_vme_source_surface_state(VADriverContextP ctx,
137                               int index,
138                               struct object_surface *obj_surface,
139                               struct intel_encoder_context *encoder_context)
140 {
141     struct gen6_vme_context *vme_context = encoder_context->vme_context;
142
143     vme_context->vme_surface2_setup(ctx,
144                                     &vme_context->gpe_context,
145                                     obj_surface,
146                                     BINDING_TABLE_OFFSET(index),
147                                     SURFACE_STATE_OFFSET(index));
148 }
149
150 static void
151 gen6_vme_media_source_surface_state(VADriverContextP ctx,
152                                     int index,
153                                     struct object_surface *obj_surface,
154                                     struct intel_encoder_context *encoder_context)
155 {
156     struct gen6_vme_context *vme_context = encoder_context->vme_context;
157
158     vme_context->vme_media_rw_surface_setup(ctx,
159                                             &vme_context->gpe_context,
160                                             obj_surface,
161                                             BINDING_TABLE_OFFSET(index),
162                                             SURFACE_STATE_OFFSET(index));
163 }
164
165 static void
166 gen6_vme_output_buffer_setup(VADriverContextP ctx,
167                              struct encode_state *encode_state,
168                              int index,
169                              struct intel_encoder_context *encoder_context)
170
171 {
172     struct i965_driver_data *i965 = i965_driver_data(ctx);
173     struct gen6_vme_context *vme_context = encoder_context->vme_context;
174     VAEncSequenceParameterBufferH264 *pSequenceParameter = (VAEncSequenceParameterBufferH264 *)encode_state->seq_param_ext->buffer;
175     VAEncSliceParameterBufferH264 *pSliceParameter = (VAEncSliceParameterBufferH264 *)encode_state->slice_params_ext[0]->buffer;
176     int is_intra = pSliceParameter->slice_type == SLICE_TYPE_I;
177     int width_in_mbs = pSequenceParameter->picture_width_in_mbs;
178     int height_in_mbs = pSequenceParameter->picture_height_in_mbs;
179
180     vme_context->vme_output.num_blocks = width_in_mbs * height_in_mbs;
181     vme_context->vme_output.pitch = 16; /* in bytes, always 16 */
182
183     if (is_intra)
184         vme_context->vme_output.size_block = 16; /* in bytes */
185     else
186         vme_context->vme_output.size_block = 64; /* in bytes */
187
188     vme_context->vme_output.bo = dri_bo_alloc(i965->intel.bufmgr, 
189                                               "VME output buffer",
190                                               vme_context->vme_output.num_blocks * vme_context->vme_output.size_block,
191                                               0x1000);
192     assert(vme_context->vme_output.bo);
193     vme_context->vme_buffer_suface_setup(ctx,
194                                          &vme_context->gpe_context,
195                                          &vme_context->vme_output,
196                                          BINDING_TABLE_OFFSET(index),
197                                          SURFACE_STATE_OFFSET(index));
198 }
199
200 static void
201 gen6_vme_output_vme_batchbuffer_setup(VADriverContextP ctx,
202                                       struct encode_state *encode_state,
203                                       int index,
204                                       struct intel_encoder_context *encoder_context)
205
206 {
207     struct i965_driver_data *i965 = i965_driver_data(ctx);
208     struct gen6_vme_context *vme_context = encoder_context->vme_context;
209     VAEncSequenceParameterBufferH264 *pSequenceParameter = (VAEncSequenceParameterBufferH264 *)encode_state->seq_param_ext->buffer;
210     int width_in_mbs = pSequenceParameter->picture_width_in_mbs;
211     int height_in_mbs = pSequenceParameter->picture_height_in_mbs;
212
213     vme_context->vme_batchbuffer.num_blocks = width_in_mbs * height_in_mbs + 1;
214     vme_context->vme_batchbuffer.size_block = 32; /* 2 OWORDs */
215     vme_context->vme_batchbuffer.pitch = 16;
216     vme_context->vme_batchbuffer.bo = dri_bo_alloc(i965->intel.bufmgr, 
217                                                    "VME batchbuffer",
218                                                    vme_context->vme_batchbuffer.num_blocks * vme_context->vme_batchbuffer.size_block,
219                                                    0x1000);
220     vme_context->vme_buffer_suface_setup(ctx,
221                                          &vme_context->gpe_context,
222                                          &vme_context->vme_batchbuffer,
223                                          BINDING_TABLE_OFFSET(index),
224                                          SURFACE_STATE_OFFSET(index));
225 }
226
227 static VAStatus
228 gen6_vme_surface_setup(VADriverContextP ctx, 
229                        struct encode_state *encode_state,
230                        int is_intra,
231                        struct intel_encoder_context *encoder_context)
232 {
233     struct i965_driver_data *i965 = i965_driver_data(ctx);
234     struct object_surface *obj_surface;
235     VAEncPictureParameterBufferH264 *pPicParameter = (VAEncPictureParameterBufferH264 *)encode_state->pic_param_ext->buffer;
236
237     /*Setup surfaces state*/
238     /* current picture for encoding */
239     obj_surface = SURFACE(encoder_context->input_yuv_surface);
240     assert(obj_surface);
241     gen6_vme_source_surface_state(ctx, 0, obj_surface, encoder_context);
242     gen6_vme_media_source_surface_state(ctx, 4, obj_surface, encoder_context);
243
244     if (!is_intra) {
245         /* reference 0 */
246         obj_surface = SURFACE(pPicParameter->ReferenceFrames[0].picture_id);
247         assert(obj_surface);
248         if ( obj_surface->bo != NULL)
249             gen6_vme_source_surface_state(ctx, 1, obj_surface, encoder_context);
250
251         /* reference 1 */
252         obj_surface = SURFACE(pPicParameter->ReferenceFrames[1].picture_id);
253         assert(obj_surface);
254         if ( obj_surface->bo != NULL ) 
255             gen6_vme_source_surface_state(ctx, 2, obj_surface, encoder_context);
256     }
257
258     /* VME output */
259     gen6_vme_output_buffer_setup(ctx, encode_state, 3, encoder_context);
260     gen6_vme_output_vme_batchbuffer_setup(ctx, encode_state, 5, encoder_context);
261
262     return VA_STATUS_SUCCESS;
263 }
264
265 static VAStatus gen6_vme_interface_setup(VADriverContextP ctx, 
266                                          struct encode_state *encode_state,
267                                          struct intel_encoder_context *encoder_context)
268 {
269     struct gen6_vme_context *vme_context = encoder_context->vme_context;
270     struct gen6_interface_descriptor_data *desc;   
271     int i;
272     dri_bo *bo;
273
274     bo = vme_context->gpe_context.idrt.bo;
275     dri_bo_map(bo, 1);
276     assert(bo->virtual);
277     desc = bo->virtual;
278
279     for (i = 0; i < GEN6_VME_KERNEL_NUMBER; i++) {
280         struct i965_kernel *kernel;
281         kernel = &vme_context->gpe_context.kernels[i];
282         assert(sizeof(*desc) == 32);
283         /*Setup the descritor table*/
284         memset(desc, 0, sizeof(*desc));
285         desc->desc0.kernel_start_pointer = (kernel->bo->offset >> 6);
286         desc->desc2.sampler_count = 1; /* FIXME: */
287         desc->desc2.sampler_state_pointer = (vme_context->vme_state.bo->offset >> 5);
288         desc->desc3.binding_table_entry_count = 1; /* FIXME: */
289         desc->desc3.binding_table_pointer = (BINDING_TABLE_OFFSET(0) >> 5);
290         desc->desc4.constant_urb_entry_read_offset = 0;
291         desc->desc4.constant_urb_entry_read_length = CURBE_URB_ENTRY_LENGTH;
292                 
293         /*kernel start*/
294         dri_bo_emit_reloc(bo,   
295                           I915_GEM_DOMAIN_INSTRUCTION, 0,
296                           0,
297                           i * sizeof(*desc) + offsetof(struct gen6_interface_descriptor_data, desc0),
298                           kernel->bo);
299         /*Sampler State(VME state pointer)*/
300         dri_bo_emit_reloc(bo,
301                           I915_GEM_DOMAIN_INSTRUCTION, 0,
302                           (1 << 2),                                                                     //
303                           i * sizeof(*desc) + offsetof(struct gen6_interface_descriptor_data, desc2),
304                           vme_context->vme_state.bo);
305         desc++;
306     }
307     dri_bo_unmap(bo);
308
309     return VA_STATUS_SUCCESS;
310 }
311
312 static VAStatus gen6_vme_constant_setup(VADriverContextP ctx, 
313                                         struct encode_state *encode_state,
314                                         struct intel_encoder_context *encoder_context)
315 {
316     struct gen6_vme_context *vme_context = encoder_context->vme_context;
317     // unsigned char *constant_buffer;
318
319     dri_bo_map(vme_context->gpe_context.curbe.bo, 1);
320     assert(vme_context->gpe_context.curbe.bo->virtual);
321     // constant_buffer = vme_context->curbe.bo->virtual;
322         
323     /*TODO copy buffer into CURB*/
324
325     dri_bo_unmap( vme_context->gpe_context.curbe.bo);
326
327     return VA_STATUS_SUCCESS;
328 }
329
330 static VAStatus gen6_vme_vme_state_setup(VADriverContextP ctx,
331                                          struct encode_state *encode_state,
332                                          int is_intra,
333                                          struct intel_encoder_context *encoder_context)
334 {
335     struct gen6_vme_context *vme_context = encoder_context->vme_context;
336     unsigned int *vme_state_message;
337     int i;
338         
339     //building VME state message
340     dri_bo_map(vme_context->vme_state.bo, 1);
341     assert(vme_context->vme_state.bo->virtual);
342     vme_state_message = (unsigned int *)vme_context->vme_state.bo->virtual;
343         
344         vme_state_message[0] = 0x01010101;
345         vme_state_message[1] = 0x01010110;
346         vme_state_message[2] = 0x0F0F0F0F;
347         vme_state_message[3] = 0x0F0F0F10;
348         vme_state_message[4] = 0x01010101;
349         vme_state_message[5] = 0x01010110;
350         vme_state_message[6] = 0x0F0F0F0F;
351         vme_state_message[7] = 0x0F0F0F10;
352         vme_state_message[8] = 0x01010101;
353         vme_state_message[9] = 0x01010110;
354     vme_state_message[10] = 0x0F0F0F0F;
355     vme_state_message[11] = 0x0F0F0F10;
356     vme_state_message[12] = 0x01010101;
357     vme_state_message[13] = 0x01010100;
358
359     for(i = 14; i < 32; i++) {
360         vme_state_message[i] = 0x00000000;
361     }
362
363     //vme_state_message[16] = 0x42424242;                       //cost function LUT set 0 for Intra
364
365     dri_bo_unmap( vme_context->vme_state.bo);
366     return VA_STATUS_SUCCESS;
367 }
368
369 static void
370 gen6_vme_fill_vme_batchbuffer(VADriverContextP ctx, 
371                               struct encode_state *encode_state,
372                               int mb_width, int mb_height,
373                               int kernel,
374                               int transform_8x8_mode_flag,
375                               struct intel_encoder_context *encoder_context)
376 {
377     struct gen6_vme_context *vme_context = encoder_context->vme_context;
378     int total_mbs = mb_width * mb_height;
379     int number_mb_cmds = 128;
380     int mb_x = 0, mb_y = 0;
381     int i, count = 0;
382     unsigned int *command_ptr;
383
384     dri_bo_map(vme_context->vme_batchbuffer.bo, 1);
385     command_ptr = vme_context->vme_batchbuffer.bo->virtual;
386
387     for (i = 0; i < total_mbs / number_mb_cmds; i++) {
388         mb_x = count % mb_width;
389         mb_y = count / mb_width;
390
391         *command_ptr++ = (CMD_MEDIA_OBJECT | (8 - 2));
392         *command_ptr++ = kernel;
393         *command_ptr++ = 0;
394         *command_ptr++ = 0;
395         *command_ptr++ = 0;
396         *command_ptr++ = 0;
397    
398         /*inline data */
399         *command_ptr++ = (mb_width << 16 | mb_y << 8 | mb_x);
400         *command_ptr++ = (number_mb_cmds << 16 | transform_8x8_mode_flag);
401
402         count += number_mb_cmds;
403     }
404
405     number_mb_cmds = total_mbs - count;
406     
407     if (number_mb_cmds) {
408         mb_x = count % mb_width;
409         mb_y = count / mb_width;
410
411         *command_ptr++ = (CMD_MEDIA_OBJECT | (8 - 2));
412         *command_ptr++ = kernel;
413         *command_ptr++ = 0;
414         *command_ptr++ = 0;
415         *command_ptr++ = 0;
416         *command_ptr++ = 0;
417    
418         /*inline data */
419         *command_ptr++ = (mb_width << 16 | mb_y << 8 | mb_x);
420         *command_ptr++ = (number_mb_cmds << 16 | transform_8x8_mode_flag);
421     }
422
423     *command_ptr++ = 0;
424     *command_ptr++ = MI_BATCH_BUFFER_END;
425
426     dri_bo_unmap(vme_context->vme_batchbuffer.bo);
427 }
428
429 static void gen6_vme_media_init(VADriverContextP ctx, struct intel_encoder_context *encoder_context)
430 {
431     struct i965_driver_data *i965 = i965_driver_data(ctx);
432     struct gen6_vme_context *vme_context = encoder_context->vme_context;
433     dri_bo *bo;
434
435     i965_gpe_context_init(ctx, &vme_context->gpe_context);
436
437     /* VME output buffer */
438     dri_bo_unreference(vme_context->vme_output.bo);
439     vme_context->vme_output.bo = NULL;
440
441     dri_bo_unreference(vme_context->vme_batchbuffer.bo);
442     vme_context->vme_batchbuffer.bo = NULL;
443
444     /* VME state */
445     dri_bo_unreference(vme_context->vme_state.bo);
446     bo = dri_bo_alloc(i965->intel.bufmgr,
447                       "Buffer",
448                       1024*16, 64);
449     assert(bo);
450     vme_context->vme_state.bo = bo;
451 }
452
453 static void gen6_vme_pipeline_programing(VADriverContextP ctx, 
454                                          struct encode_state *encode_state,
455                                          struct intel_encoder_context *encoder_context)
456 {
457     struct gen6_vme_context *vme_context = encoder_context->vme_context;
458     struct intel_batchbuffer *batch = encoder_context->base.batch;
459     VAEncPictureParameterBufferH264 *pPicParameter = (VAEncPictureParameterBufferH264 *)encode_state->pic_param_ext->buffer;
460     VAEncSliceParameterBufferH264 *pSliceParameter = (VAEncSliceParameterBufferH264 *)encode_state->slice_params_ext[0]->buffer;
461     VAEncSequenceParameterBufferH264 *pSequenceParameter = (VAEncSequenceParameterBufferH264 *)encode_state->seq_param_ext->buffer;
462     int is_intra = pSliceParameter->slice_type == SLICE_TYPE_I;
463     int width_in_mbs = pSequenceParameter->picture_width_in_mbs;
464     int height_in_mbs = pSequenceParameter->picture_height_in_mbs;
465
466     gen6_vme_fill_vme_batchbuffer(ctx, 
467                                   encode_state,
468                                   width_in_mbs, height_in_mbs,
469                                   is_intra ? VME_INTRA_SHADER : VME_INTER_SHADER,
470                                   pPicParameter->pic_fields.bits.transform_8x8_mode_flag,
471                                   encoder_context);
472
473     intel_batchbuffer_start_atomic(batch, 0x1000);
474     gen6_gpe_pipeline_setup(ctx, &vme_context->gpe_context, batch);
475     BEGIN_BATCH(batch, 2);
476     OUT_BATCH(batch, MI_BATCH_BUFFER_START | (2 << 6));
477     OUT_RELOC(batch,
478               vme_context->vme_batchbuffer.bo,
479               I915_GEM_DOMAIN_COMMAND, 0, 
480               0);
481     ADVANCE_BATCH(batch);
482
483     intel_batchbuffer_end_atomic(batch);        
484 }
485
486 static VAStatus gen6_vme_prepare(VADriverContextP ctx, 
487                                  struct encode_state *encode_state,
488                                  struct intel_encoder_context *encoder_context)
489 {
490     VAStatus vaStatus = VA_STATUS_SUCCESS;
491     VAEncSliceParameterBufferH264 *pSliceParameter = (VAEncSliceParameterBufferH264 *)encode_state->slice_params_ext[0]->buffer;
492     int is_intra = pSliceParameter->slice_type == SLICE_TYPE_I;
493         
494     /*Setup all the memory object*/
495     gen6_vme_surface_setup(ctx, encode_state, is_intra, encoder_context);
496     gen6_vme_interface_setup(ctx, encode_state, encoder_context);
497     gen6_vme_constant_setup(ctx, encode_state, encoder_context);
498     gen6_vme_vme_state_setup(ctx, encode_state, is_intra, encoder_context);
499
500     /*Programing media pipeline*/
501     gen6_vme_pipeline_programing(ctx, encode_state, encoder_context);
502
503     return vaStatus;
504 }
505
506 static VAStatus gen6_vme_run(VADriverContextP ctx, 
507                              struct encode_state *encode_state,
508                              struct intel_encoder_context *encoder_context)
509 {
510     struct intel_batchbuffer *batch = encoder_context->base.batch;
511
512     intel_batchbuffer_flush(batch);
513
514     return VA_STATUS_SUCCESS;
515 }
516
517 static VAStatus gen6_vme_stop(VADriverContextP ctx, 
518                               struct encode_state *encode_state,
519                               struct intel_encoder_context *encoder_context)
520 {
521     return VA_STATUS_SUCCESS;
522 }
523
524 static VAStatus
525 gen6_vme_pipeline(VADriverContextP ctx,
526                   VAProfile profile,
527                   struct encode_state *encode_state,
528                   struct intel_encoder_context *encoder_context)
529 {
530     gen6_vme_media_init(ctx, encoder_context);
531     gen6_vme_prepare(ctx, encode_state, encoder_context);
532     gen6_vme_run(ctx, encode_state, encoder_context);
533     gen6_vme_stop(ctx, encode_state, encoder_context);
534
535     return VA_STATUS_SUCCESS;
536 }
537
538 static void
539 gen6_vme_context_destroy(void *context)
540 {
541     struct gen6_vme_context *vme_context = context;
542
543     i965_gpe_context_destroy(&vme_context->gpe_context);
544
545     dri_bo_unreference(vme_context->vme_output.bo);
546     vme_context->vme_output.bo = NULL;
547
548     dri_bo_unreference(vme_context->vme_state.bo);
549     vme_context->vme_state.bo = NULL;
550
551     dri_bo_unreference(vme_context->vme_batchbuffer.bo);
552     vme_context->vme_batchbuffer.bo = NULL;
553
554     free(vme_context);
555 }
556
557 Bool gen6_vme_context_init(VADriverContextP ctx, struct intel_encoder_context *encoder_context)
558 {
559     struct i965_driver_data *i965 = i965_driver_data(ctx);
560     struct gen6_vme_context *vme_context = calloc(1, sizeof(struct gen6_vme_context));
561
562     vme_context->gpe_context.surface_state_binding_table.length = (SURFACE_STATE_PADDED_SIZE + sizeof(unsigned int)) * MAX_MEDIA_SURFACES_GEN6;
563
564     vme_context->gpe_context.idrt.max_entries = MAX_INTERFACE_DESC_GEN6;
565     vme_context->gpe_context.idrt.entry_size = sizeof(struct gen6_interface_descriptor_data);
566
567     vme_context->gpe_context.curbe.length = CURBE_TOTAL_DATA_LENGTH;
568
569     vme_context->gpe_context.vfe_state.max_num_threads = 60 - 1;
570     vme_context->gpe_context.vfe_state.num_urb_entries = 16;
571     vme_context->gpe_context.vfe_state.gpgpu_mode = 0;
572     vme_context->gpe_context.vfe_state.urb_entry_size = 59 - 1;
573     vme_context->gpe_context.vfe_state.curbe_allocation_size = CURBE_ALLOCATION_SIZE - 1;
574
575     if (IS_GEN7(i965->intel.device_id)) {
576         i965_gpe_load_kernels(ctx,
577                               &vme_context->gpe_context,
578                               gen7_vme_kernels,
579                               GEN6_VME_KERNEL_NUMBER);
580         vme_context->vme_surface2_setup = gen7_gpe_surface2_setup;
581         vme_context->vme_media_rw_surface_setup = gen7_gpe_media_rw_surface_setup;
582         vme_context->vme_buffer_suface_setup = gen7_gpe_buffer_suface_setup;
583     } else {
584         i965_gpe_load_kernels(ctx,
585                               &vme_context->gpe_context,
586                               gen6_vme_kernels,
587                               GEN6_VME_KERNEL_NUMBER);
588         vme_context->vme_surface2_setup = i965_gpe_surface2_setup;
589         vme_context->vme_media_rw_surface_setup = i965_gpe_media_rw_surface_setup;
590         vme_context->vme_buffer_suface_setup = i965_gpe_buffer_suface_setup;
591     }
592
593     encoder_context->vme_context = vme_context;
594     encoder_context->vme_context_destroy = gen6_vme_context_destroy;
595     encoder_context->vme_pipeline = gen6_vme_pipeline;
596
597     return True;
598 }