summaryrefslogtreecommitdiffstats
path: root/src/gallium/winsys/radeon/drm/radeon_winsys.h
blob: 90583e3ab8cbcf7754103dadbbfe627508c20cda (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
/*
 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
 *
 * 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
 * on 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
 * THE AUTHOR(S) AND/OR THEIR 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. */

#ifndef RADEON_WINSYS_H
#define RADEON_WINSYS_H

/* The public winsys interface header for the radeon driver. */

/* R300 features in DRM.
 *
 * 2.6.0:
 * - Hyper-Z
 * - GB_Z_PEQ_CONFIG on rv350->r4xx
 * - R500 FG_ALPHA_VALUE
 *
 * 2.8.0:
 * - R500 US_FORMAT regs
 * - R500 ARGB2101010 colorbuffer
 * - CMask and AA regs
 * - R16F/RG16F
 */

#include "pipebuffer/pb_bufmgr.h"
#include "pipe/p_defines.h"
#include "pipe/p_state.h"

#define RADEON_MAX_CMDBUF_DWORDS (16 * 1024)
#define RADEON_FLUSH_ASYNC       (1 << 0)

/* Tiling flags. */
enum radeon_bo_layout {
    RADEON_LAYOUT_LINEAR = 0,
    RADEON_LAYOUT_TILED,
    RADEON_LAYOUT_SQUARETILED,

    RADEON_LAYOUT_UNKNOWN
};

enum radeon_bo_domain { /* bitfield */
    RADEON_DOMAIN_GTT  = 2,
    RADEON_DOMAIN_VRAM = 4
};

enum radeon_bo_usage { /* bitfield */
    RADEON_USAGE_READ = 2,
    RADEON_USAGE_WRITE = 4,
    RADEON_USAGE_READWRITE = RADEON_USAGE_READ | RADEON_USAGE_WRITE
};

struct winsys_handle;
struct radeon_winsys_cs_handle;   /* for write_reloc etc. */

struct radeon_winsys_cs {
    unsigned cdw;  /* Number of used dwords. */
    uint32_t *buf; /* The command buffer. */
};

struct radeon_info {
    uint32_t pci_id;
    uint32_t gart_size;
    uint32_t vram_size;

    uint32_t drm_major; /* version */
    uint32_t drm_minor;
    uint32_t drm_patchlevel;

    uint32_t r300_num_gb_pipes;
    uint32_t r300_num_z_pipes;

    uint32_t r600_num_backends;
    uint32_t r600_clock_crystal_freq;
    uint32_t r600_tiling_config;
    uint32_t r600_num_tile_pipes;
    uint32_t r600_backend_map;
    boolean r600_backend_map_valid;
};

enum radeon_feature_id {
    RADEON_FID_R300_HYPERZ_ACCESS,     /* ZMask + HiZ */
    RADEON_FID_R300_CMASK_ACCESS,
};

struct radeon_winsys {
    /**
     * Destroy this winsys.
     *
     * \param ws        The winsys this function is called from.
     */
    void (*destroy)(struct radeon_winsys *ws);

    /**
     * Query an info structure from winsys.
     *
     * \param ws        The winsys this function is called from.
     * \param info      Return structure
     */
    void (*query_info)(struct radeon_winsys *ws,
                       struct radeon_info *info);

    /**************************************************************************
     * Buffer management. Buffer attributes are mostly fixed over its lifetime.
     *
     * Remember that gallium gets to choose the interface it needs, and the
     * window systems must then implement that interface (rather than the
     * other way around...).
     *************************************************************************/

    /**
     * Create a buffer object.
     *
     * \param ws        The winsys this function is called from.
     * \param size      The size to allocate.
     * \param alignment An alignment of the buffer in memory.
     * \param bind      A bitmask of the PIPE_BIND_* flags.
     * \param domain    A bitmask of the RADEON_DOMAIN_* flags.
     * \return          The created buffer object.
     */
    struct pb_buffer *(*buffer_create)(struct radeon_winsys *ws,
                                       unsigned size,
                                       unsigned alignment,
                                       unsigned bind,
                                       enum radeon_bo_domain domain);

    struct radeon_winsys_cs_handle *(*buffer_get_cs_handle)(
            struct pb_buffer *buf);

    /**
     * Map the entire data store of a buffer object into the client's address
     * space.
     *
     * \param buf       A winsys buffer object to map.
     * \param cs        A command stream to flush if the buffer is referenced by it.
     * \param usage     A bitmask of the PIPE_TRANSFER_* flags.
     * \return          The pointer at the beginning of the buffer.
     */
    void *(*buffer_map)(struct pb_buffer *buf,
                        struct radeon_winsys_cs *cs,
                        enum pipe_transfer_usage usage);

    /**
     * Unmap a buffer object from the client's address space.
     *
     * \param buf       A winsys buffer object to unmap.
     */
    void (*buffer_unmap)(struct pb_buffer *buf);

    /**
     * Return TRUE if a buffer object is being used by the GPU.
     *
     * \param buf       A winsys buffer object.
     * \param usage     Only check whether the buffer is busy for the given usage.
     */
    boolean (*buffer_is_busy)(struct pb_buffer *buf,
                              enum radeon_bo_usage usage);

    /**
     * Wait for a buffer object until it is not used by a GPU. This is
     * equivalent to a fence placed after the last command using the buffer,
     * and synchronizing to the fence.
     *
     * \param buf       A winsys buffer object to wait for.
     * \param usage     Only wait until the buffer is idle for the given usage,
     *                  but may still be busy for some other usage.
     */
    void (*buffer_wait)(struct pb_buffer *buf, enum radeon_bo_usage usage);

    /**
     * Return tiling flags describing a memory layout of a buffer object.
     *
     * \param buf       A winsys buffer object to get the flags from.
     * \param macrotile A pointer to the return value of the microtile flag.
     * \param microtile A pointer to the return value of the macrotile flag.
     *
     * \note microtile and macrotile are not bitmasks!
     */
    void (*buffer_get_tiling)(struct pb_buffer *buf,
                              enum radeon_bo_layout *microtile,
                              enum radeon_bo_layout *macrotile);

    /**
     * Set tiling flags describing a memory layout of a buffer object.
     *
     * \param buf       A winsys buffer object to set the flags for.
     * \param cs        A command stream to flush if the buffer is referenced by it.
     * \param macrotile A macrotile flag.
     * \param microtile A microtile flag.
     * \param stride    A stride of the buffer in bytes, for texturing.
     *
     * \note microtile and macrotile are not bitmasks!
     */
    void (*buffer_set_tiling)(struct pb_buffer *buf,
                              struct radeon_winsys_cs *cs,
                              enum radeon_bo_layout microtile,
                              enum radeon_bo_layout macrotile,
                              unsigned stride);

    /**
     * Get a winsys buffer from a winsys handle. The internal structure
     * of the handle is platform-specific and only a winsys should access it.
     *
     * \param ws        The winsys this function is called from.
     * \param whandle   A winsys handle pointer as was received from a state
     *                  tracker.
     * \param stride    The returned buffer stride in bytes.
     * \param size      The returned buffer size.
     */
    struct pb_buffer *(*buffer_from_handle)(struct radeon_winsys *ws,
                                            struct winsys_handle *whandle,
                                            unsigned *stride,
                                            unsigned *size);

    /**
     * Get a winsys handle from a winsys buffer. The internal structure
     * of the handle is platform-specific and only a winsys should access it.
     *
     * \param buf       A winsys buffer object to get the handle from.
     * \param whandle   A winsys handle pointer.
     * \param stride    A stride of the buffer in bytes, for texturing.
     * \return          TRUE on success.
     */
    boolean (*buffer_get_handle)(struct pb_buffer *buf,
                                 unsigned stride,
                                 struct winsys_handle *whandle);

    /**************************************************************************
     * Command submission.
     *
     * Each pipe context should create its own command stream and submit
     * commands independently of other contexts.
     *************************************************************************/

    /**
     * Create a command stream.
     *
     * \param ws        The winsys this function is called from.
     */
    struct radeon_winsys_cs *(*cs_create)(struct radeon_winsys *ws);

    /**
     * Destroy a command stream.
     *
     * \param cs        A command stream to destroy.
     */
    void (*cs_destroy)(struct radeon_winsys_cs *cs);

    /**
     * Add a new buffer relocation. Every relocation must first be added
     * before it can be written.
     *
     * \param cs  A command stream to add buffer for validation against.
     * \param buf A winsys buffer to validate.
     * \param rd  A read domain containing a bitmask of the RADEON_DOMAIN_* flags.
     * \param wd  A write domain containing a bitmask of the RADEON_DOMAIN_* flags.
     * \return Relocation index.
     */
    unsigned (*cs_add_reloc)(struct radeon_winsys_cs *cs,
                             struct radeon_winsys_cs_handle *buf,
                             enum radeon_bo_domain rd,
                             enum radeon_bo_domain wd);

    /**
     * Return TRUE if there is enough memory in VRAM and GTT for the relocs
     * added so far. If the validation fails, all the relocations which have
     * been added since the last call of cs_validate will be removed and
     * the CS will be flushed (provided there are still any relocations).
     *
     * \param cs        A command stream to validate.
     */
    boolean (*cs_validate)(struct radeon_winsys_cs *cs);

    /**
     * Write a relocated dword to a command buffer.
     *
     * \param cs        A command stream the relocation is written to.
     * \param buf       A winsys buffer to write the relocation for.
     * \param rd        A read domain containing a bitmask of the RADEON_DOMAIN_* flags.
     * \param wd        A write domain containing a bitmask of the RADEON_DOMAIN_* flags.
     */
    void (*cs_write_reloc)(struct radeon_winsys_cs *cs,
                           struct radeon_winsys_cs_handle *buf);

    /**
     * Flush a command stream.
     *
     * \param cs        A command stream to flush.
     * \param flags,    RADEON_FLUSH_ASYNC or 0.
     */
    void (*cs_flush)(struct radeon_winsys_cs *cs, unsigned flags);

    /**
     * Set a flush callback which is called from winsys when flush is
     * required.
     *
     * \param cs        A command stream to set the callback for.
     * \param flush     A flush callback function associated with the command stream.
     * \param user      A user pointer that will be passed to the flush callback.
     */
    void (*cs_set_flush_callback)(struct radeon_winsys_cs *cs,
                                  void (*flush)(void *ctx, unsigned flags),
                                  void *ctx);

    /**
     * Return TRUE if a buffer is referenced by a command stream.
     *
     * \param cs        A command stream.
     * \param buf       A winsys buffer.
     */
    boolean (*cs_is_buffer_referenced)(struct radeon_winsys_cs *cs,
                                       struct radeon_winsys_cs_handle *buf);

    /**
     * Request access to a feature for a command stream.
     *
     * \param cs        A command stream.
     * \param fid       Feature ID, one of RADEON_FID_*
     * \param enable	Whether to enable or disable the feature.
     */
    boolean (*cs_request_feature)(struct radeon_winsys_cs *cs,
                                  enum radeon_feature_id fid,
                                  boolean enable);
};

#endif