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1 /*
2  * Copyright 2011-2013 Maarten Lankhorst
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #include <nouveau.h>
24 
25 #include "pipe/p_defines.h"
26 #include "vl/vl_video_buffer.h"
27 #include "util/u_video.h"
28 
29 struct nouveau_vp3_video_buffer {
30    struct pipe_video_buffer base;
31    unsigned num_planes, valid_ref;
32    struct pipe_resource *resources[VL_NUM_COMPONENTS];
33    struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
34    struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
35    struct pipe_surface *surfaces[VL_NUM_COMPONENTS * 2];
36 };
37 
38 #define SLICE_SIZE 0x200
39 #define VP_OFFSET 0x200
40 #define COMM_OFFSET 0x500
41 
42 #define NOUVEAU_VP3_BSP_RESERVED_SIZE 0x700
43 
44 #define NOUVEAU_VP3_DEBUG_FENCE 0
45 
46 #if NOUVEAU_VP3_DEBUG_FENCE
47 # define NOUVEAU_VP3_VIDEO_QDEPTH 1
48 #else
49 # define NOUVEAU_VP3_VIDEO_QDEPTH 2
50 #endif
51 
52 #define SUBC_BSP(m) dec->bsp_idx, (m)
53 #define SUBC_VP(m) dec->vp_idx, (m)
54 #define SUBC_PPP(m) dec->ppp_idx, (m)
55 
56 union pipe_desc {
57    struct pipe_picture_desc *base;
58    struct pipe_mpeg12_picture_desc *mpeg12;
59    struct pipe_mpeg4_picture_desc *mpeg4;
60    struct pipe_vc1_picture_desc *vc1;
61    struct pipe_h264_picture_desc *h264;
62 };
63 
64 struct nouveau_vp3_decoder {
65    struct pipe_video_codec base;
66    struct nouveau_client *client;
67    struct nouveau_object *channel[3], *bsp, *vp, *ppp;
68    struct nouveau_pushbuf *pushbuf[3];
69 
70 #if NOUVEAU_VP3_DEBUG_FENCE
71    /* dump fence and comm, as needed.. */
72    unsigned *fence_map;
73    struct comm *comm;
74 
75    struct nouveau_bo *fence_bo;
76 #endif
77 
78    struct nouveau_bo *fw_bo, *bitplane_bo;
79 
80    // array size max_references + 2, contains unpostprocessed images
81    // added at the end of ref_bo is a tmp array
82    // tmp is an array for h264, with each member being used for a ref frame or current
83    // target.. size = (((mb(w)*((mb(h)+1)&~1))+3)>>2)<<8 * (max_references+1)
84    // for other codecs, it simply seems that size = w*h is enough
85    // unsure what it's supposed to contain..
86    struct nouveau_bo *ref_bo;
87 
88    struct nouveau_bo *inter_bo[2];
89 
90    struct nouveau_bo *bsp_bo[NOUVEAU_VP3_VIDEO_QDEPTH];
91 
92    // bo's used by each cycle:
93 
94    // bsp_bo: contains raw bitstream data and parameters for BSP and VP.
95    // inter_bo: contains data shared between BSP and VP
96    // ref_bo: reference image data, used by PPP and VP
97    // bitplane_bo: contain bitplane data (similar to ref_bo), used by BSP only
98    // fw_bo: used by VP only.
99 
100    // Needed amount of copies in optimal case:
101    // 2 copies of inter_bo, VP would process the last inter_bo, while BSP is
102    // writing out a new set.
103    // NOUVEAU_VP3_VIDEO_QDEPTH copies of bsp_bo. We don't want to block the
104    // pipeline ever, and give shaders a chance to run as well.
105 
106    struct {
107       struct nouveau_vp3_video_buffer *vidbuf;
108       unsigned last_used;
109       unsigned field_pic_flag : 1;
110       unsigned decoded_top : 1;
111       unsigned decoded_bottom : 1;
112       unsigned decoded_first : 1;
113    } refs[17];
114    unsigned fence_seq, fw_sizes, last_frame_num, tmp_stride, ref_stride;
115 
116    unsigned bsp_idx, vp_idx, ppp_idx;
117 
118    /* End of the bsp bo where new data should be appended between one begin/end
119     * frame.
120     */
121    char *bsp_ptr;
122 };
123 
124 struct comm {
125    uint32_t bsp_cur_index; // 000
126    uint32_t byte_ofs; // 004
127    uint32_t status[0x10]; // 008
128    uint32_t pos[0x10]; // 048
129    uint8_t pad[0x100 - 0x88]; // 0a0 bool comm_encrypted
130 
131    uint32_t pvp_cur_index; // 100
132    uint32_t acked_byte_ofs; // 104
133    uint32_t status_vp[0x10]; // 108
134    uint16_t mb_y[0x10]; //148
135    uint32_t pvp_stage; // 168 0xeeXX
136    uint16_t parse_endpos_index; // 16c
137    uint16_t irq_index; // 16e
138    uint8_t  irq_470[0x10]; // 170
139    uint32_t irq_pos[0x10]; // 180
140    uint32_t parse_endpos[0x10]; // 1c0
141 };
142 
nouveau_vp3_video_align(uint32_t h)143 static inline uint32_t nouveau_vp3_video_align(uint32_t h)
144 {
145    return ((h+0x3f)&~0x3f);
146 };
147 
mb(uint32_t coord)148 static inline uint32_t mb(uint32_t coord)
149 {
150    return (coord + 0xf)>>4;
151 }
152 
mb_half(uint32_t coord)153 static inline uint32_t mb_half(uint32_t coord)
154 {
155    return (coord + 0x1f)>>5;
156 }
157 
158 static inline uint64_t
nouveau_vp3_video_addr(struct nouveau_vp3_decoder * dec,struct nouveau_vp3_video_buffer * target)159 nouveau_vp3_video_addr(struct nouveau_vp3_decoder *dec, struct nouveau_vp3_video_buffer *target)
160 {
161    uint64_t ret;
162    if (target)
163       ret = dec->ref_stride * target->valid_ref;
164    else
165       ret = dec->ref_stride * (dec->base.max_references+1);
166    return dec->ref_bo->offset + ret;
167 }
168 
169 static inline void
nouveau_vp3_ycbcr_offsets(struct nouveau_vp3_decoder * dec,uint32_t * y2,uint32_t * cbcr,uint32_t * cbcr2)170 nouveau_vp3_ycbcr_offsets(struct nouveau_vp3_decoder *dec, uint32_t *y2,
171                           uint32_t *cbcr, uint32_t *cbcr2)
172 {
173    uint32_t w = mb(dec->base.width), size;
174    *y2 = mb_half(dec->base.height)*w;
175    *cbcr = *y2 * 2;
176    *cbcr2 = *cbcr + w * (nouveau_vp3_video_align(dec->base.height)>>6);
177 
178    /* The check here should never fail because it means a bug
179     * in the code rather than a bug in hardware..
180     */
181    size = (2 * (*cbcr2 - *cbcr) + *cbcr) << 8;
182    if (size > dec->ref_stride) {
183       debug_printf("Overshot ref_stride (%u) with size %u and ofs (%u,%u,%u)\n",
184                    dec->ref_stride, size, *y2<<8, *cbcr<<8, *cbcr2<<8);
185       *y2 = *cbcr = *cbcr2 = 0;
186       assert(size <= dec->ref_stride);
187    }
188 }
189 
190 static inline void
nouveau_vp3_inter_sizes(struct nouveau_vp3_decoder * dec,uint32_t slice_count,uint32_t * slice_size,uint32_t * bucket_size,uint32_t * ring_size)191 nouveau_vp3_inter_sizes(struct nouveau_vp3_decoder *dec, uint32_t slice_count,
192                         uint32_t *slice_size, uint32_t *bucket_size,
193                         uint32_t *ring_size)
194 {
195    *slice_size = (SLICE_SIZE * slice_count)>>8;
196    if (u_reduce_video_profile(dec->base.profile) == PIPE_VIDEO_FORMAT_MPEG12)
197       *bucket_size = 0;
198    else
199       *bucket_size = mb(dec->base.width) * 3;
200    *ring_size = (dec->inter_bo[0]->size >> 8) - *bucket_size - *slice_size;
201 }
202 
203 struct pipe_video_buffer *
204 nouveau_vp3_video_buffer_create(struct pipe_context *pipe,
205                                 const struct pipe_video_buffer *templat,
206                                 int flags);
207 
208 void
209 nouveau_vp3_decoder_init_common(struct pipe_video_codec *decoder);
210 
211 int
212 nouveau_vp3_load_firmware(struct nouveau_vp3_decoder *dec,
213                           enum pipe_video_profile profile,
214                           unsigned chipset);
215 
216 void
217 nouveau_vp3_bsp_begin(struct nouveau_vp3_decoder *dec);
218 
219 void
220 nouveau_vp3_bsp_next(struct nouveau_vp3_decoder *dec, unsigned num_buffers,
221                      const void *const *data, const unsigned *num_bytes);
222 
223 uint32_t
224 nouveau_vp3_bsp_end(struct nouveau_vp3_decoder *dec, union pipe_desc desc);
225 
226 void
227 nouveau_vp3_vp_caps(struct nouveau_vp3_decoder *dec, union pipe_desc desc,
228                     struct nouveau_vp3_video_buffer *target, unsigned comm_seq,
229                     unsigned *caps, unsigned *is_ref,
230                     struct nouveau_vp3_video_buffer *refs[16]);
231 
232 int
233 nouveau_vp3_screen_get_video_param(struct pipe_screen *pscreen,
234                                    enum pipe_video_profile profile,
235                                    enum pipe_video_entrypoint entrypoint,
236                                    enum pipe_video_cap param);
237 
238 boolean
239 nouveau_vp3_screen_video_supported(struct pipe_screen *screen,
240                                    enum pipe_format format,
241                                    enum pipe_video_profile profile,
242                                    enum pipe_video_entrypoint entrypoint);
243