2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
24 #ifndef RADEON_WINSYS_H
25 #define RADEON_WINSYS_H
27 /* The public winsys interface header for the radeon driver. */
29 #include "pipebuffer/pb_bufmgr.h"
30 #include "pipe/p_defines.h"
31 #include "pipe/p_state.h"
33 #define RADEON_MAX_CMDBUF_DWORDS (16 * 1024)
34 #define RADEON_FLUSH_ASYNC (1 << 0)
37 enum radeon_bo_layout {
38 RADEON_LAYOUT_LINEAR = 0,
40 RADEON_LAYOUT_SQUARETILED,
45 enum radeon_bo_domain { /* bitfield */
46 RADEON_DOMAIN_GTT = 2,
47 RADEON_DOMAIN_VRAM = 4
51 struct radeon_winsys_cs_handle; /* for write_reloc etc. */
53 struct radeon_winsys_cs {
54 unsigned cdw; /* Number of used dwords. */
55 uint32_t *buf; /* The command buffer. */
58 enum radeon_value_id {
60 RADEON_VID_R300_GB_PIPES,
61 RADEON_VID_R300_Z_PIPES,
66 RADEON_VID_DRM_PATCHLEVEL,
68 /* These should probably go away: */
72 * - GB_Z_PEQ_CONFIG on rv350->r4xx
73 * - R500 FG_ALPHA_VALUE
81 * - R500 US_FORMAT regs
82 * - R500 ARGB2101010 colorbuffer
92 enum radeon_feature_id {
93 RADEON_FID_HYPERZ_RAM_ACCESS, /* ZMask + HiZ */
94 RADEON_FID_CMASK_RAM_ACCESS,
97 struct radeon_winsys {
99 * Destroy this winsys.
101 * \param ws The winsys this function is called from.
103 void (*destroy)(struct radeon_winsys *ws);
106 * Query a system value from a winsys.
108 * \param ws The winsys this function is called from.
109 * \param vid One of the RADEON_VID_* enums.
111 uint32_t (*get_value)(struct radeon_winsys *ws,
112 enum radeon_value_id vid);
114 /**************************************************************************
115 * Buffer management. Buffer attributes are mostly fixed over its lifetime.
117 * Remember that gallium gets to choose the interface it needs, and the
118 * window systems must then implement that interface (rather than the
119 * other way around...).
120 *************************************************************************/
123 * Create a buffer object.
125 * \param ws The winsys this function is called from.
126 * \param size The size to allocate.
127 * \param alignment An alignment of the buffer in memory.
128 * \param bind A bitmask of the PIPE_BIND_* flags.
129 * \param usage A bitmask of the PIPE_USAGE_* flags.
130 * \param domain A bitmask of the RADEON_DOMAIN_* flags.
131 * \return The created buffer object.
133 struct pb_buffer *(*buffer_create)(struct radeon_winsys *ws,
138 enum radeon_bo_domain domain);
140 struct radeon_winsys_cs_handle *(*buffer_get_cs_handle)(
141 struct pb_buffer *buf);
144 * Map the entire data store of a buffer object into the client's address
147 * \param buf A winsys buffer object to map.
148 * \param cs A command stream to flush if the buffer is referenced by it.
149 * \param usage A bitmask of the PIPE_TRANSFER_* flags.
150 * \return The pointer at the beginning of the buffer.
152 void *(*buffer_map)(struct pb_buffer *buf,
153 struct radeon_winsys_cs *cs,
154 enum pipe_transfer_usage usage);
157 * Unmap a buffer object from the client's address space.
159 * \param buf A winsys buffer object to unmap.
161 void (*buffer_unmap)(struct pb_buffer *buf);
164 * Return TRUE if a buffer object is being used by the GPU.
166 * \param buf A winsys buffer object.
168 boolean (*buffer_is_busy)(struct pb_buffer *buf);
171 * Wait for a buffer object until it is not used by a GPU. This is
172 * equivalent to a fence placed after the last command using the buffer,
173 * and synchronizing to the fence.
175 * \param buf A winsys buffer object to wait for.
177 void (*buffer_wait)(struct pb_buffer *buf);
180 * Return tiling flags describing a memory layout of a buffer object.
182 * \param buf A winsys buffer object to get the flags from.
183 * \param macrotile A pointer to the return value of the microtile flag.
184 * \param microtile A pointer to the return value of the macrotile flag.
186 * \note microtile and macrotile are not bitmasks!
188 void (*buffer_get_tiling)(struct pb_buffer *buf,
189 enum radeon_bo_layout *microtile,
190 enum radeon_bo_layout *macrotile);
193 * Set tiling flags describing a memory layout of a buffer object.
195 * \param buf A winsys buffer object to set the flags for.
196 * \param cs A command stream to flush if the buffer is referenced by it.
197 * \param macrotile A macrotile flag.
198 * \param microtile A microtile flag.
199 * \param stride A stride of the buffer in bytes, for texturing.
201 * \note microtile and macrotile are not bitmasks!
203 void (*buffer_set_tiling)(struct pb_buffer *buf,
204 struct radeon_winsys_cs *cs,
205 enum radeon_bo_layout microtile,
206 enum radeon_bo_layout macrotile,
210 * Get a winsys buffer from a winsys handle. The internal structure
211 * of the handle is platform-specific and only a winsys should access it.
213 * \param ws The winsys this function is called from.
214 * \param whandle A winsys handle pointer as was received from a state
216 * \param stride The returned buffer stride in bytes.
217 * \param size The returned buffer size.
219 struct pb_buffer *(*buffer_from_handle)(struct radeon_winsys *ws,
220 struct winsys_handle *whandle,
225 * Get a winsys handle from a winsys buffer. The internal structure
226 * of the handle is platform-specific and only a winsys should access it.
228 * \param buf A winsys buffer object to get the handle from.
229 * \param whandle A winsys handle pointer.
230 * \param stride A stride of the buffer in bytes, for texturing.
231 * \return TRUE on success.
233 boolean (*buffer_get_handle)(struct pb_buffer *buf,
235 struct winsys_handle *whandle);
237 /**************************************************************************
238 * Command submission.
240 * Each pipe context should create its own command stream and submit
241 * commands independently of other contexts.
242 *************************************************************************/
245 * Create a command stream.
247 * \param ws The winsys this function is called from.
249 struct radeon_winsys_cs *(*cs_create)(struct radeon_winsys *ws);
252 * Destroy a command stream.
254 * \param cs A command stream to destroy.
256 void (*cs_destroy)(struct radeon_winsys_cs *cs);
259 * Add a new buffer relocation. Every relocation must first be added
260 * before it can be written.
262 * \param cs A command stream to add buffer for validation against.
263 * \param buf A winsys buffer to validate.
264 * \param rd A read domain containing a bitmask of the RADEON_DOMAIN_* flags.
265 * \param wd A write domain containing a bitmask of the RADEON_DOMAIN_* flags.
267 void (*cs_add_reloc)(struct radeon_winsys_cs *cs,
268 struct radeon_winsys_cs_handle *buf,
269 enum radeon_bo_domain rd,
270 enum radeon_bo_domain wd);
273 * Return TRUE if there is enough memory in VRAM and GTT for the relocs
274 * added so far. If the validation fails, all the relocations which have
275 * been added since the last call of cs_validate will be removed and
276 * the CS will be flushed (provided there are still any relocations).
278 * \param cs A command stream to validate.
280 boolean (*cs_validate)(struct radeon_winsys_cs *cs);
283 * Write a relocated dword to a command buffer.
285 * \param cs A command stream the relocation is written to.
286 * \param buf A winsys buffer to write the relocation for.
287 * \param rd A read domain containing a bitmask of the RADEON_DOMAIN_* flags.
288 * \param wd A write domain containing a bitmask of the RADEON_DOMAIN_* flags.
290 void (*cs_write_reloc)(struct radeon_winsys_cs *cs,
291 struct radeon_winsys_cs_handle *buf);
294 * Flush a command stream.
296 * \param cs A command stream to flush.
297 * \param flags, RADEON_FLUSH_ASYNC or 0.
299 void (*cs_flush)(struct radeon_winsys_cs *cs, unsigned flags);
302 * Set a flush callback which is called from winsys when flush is
305 * \param cs A command stream to set the callback for.
306 * \param flush A flush callback function associated with the command stream.
307 * \param user A user pointer that will be passed to the flush callback.
309 void (*cs_set_flush)(struct radeon_winsys_cs *cs,
310 void (*flush)(void *ctx, unsigned flags),
314 * Return TRUE if a buffer is referenced by a command stream.
316 * \param cs A command stream.
317 * \param buf A winsys buffer.
319 boolean (*cs_is_buffer_referenced)(struct radeon_winsys_cs *cs,
320 struct radeon_winsys_cs_handle *buf);
323 * Request access to a feature for a command stream.
325 * \param cs A command stream.
326 * \param fid A winsys buffer.
328 boolean (*cs_request_feature)(struct radeon_winsys_cs *cs,
329 enum radeon_feature_id fid,