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_buffer.h"
31 #include "amd/common/amd_family.h"
33 #define RADEON_FLUSH_ASYNC (1 << 0)
34 #define RADEON_FLUSH_END_OF_FRAME (1 << 1)
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,
48 RADEON_DOMAIN_VRAM_GTT
= RADEON_DOMAIN_VRAM
| RADEON_DOMAIN_GTT
51 enum radeon_bo_flag
{ /* bitfield */
52 RADEON_FLAG_GTT_WC
= (1 << 0),
53 RADEON_FLAG_CPU_ACCESS
= (1 << 1),
54 RADEON_FLAG_NO_CPU_ACCESS
= (1 << 2),
55 RADEON_FLAG_HANDLE
= (1 << 3), /* the buffer most not be suballocated */
58 enum radeon_bo_usage
{ /* bitfield */
59 RADEON_USAGE_READ
= 2,
60 RADEON_USAGE_WRITE
= 4,
61 RADEON_USAGE_READWRITE
= RADEON_USAGE_READ
| RADEON_USAGE_WRITE
,
63 /* The winsys ensures that the CS submission will be scheduled after
64 * previously flushed CSs referencing this BO in a conflicting way.
66 RADEON_USAGE_SYNCHRONIZED
= 8
78 enum radeon_value_id
{
79 RADEON_REQUESTED_VRAM_MEMORY
,
80 RADEON_REQUESTED_GTT_MEMORY
,
83 RADEON_BUFFER_WAIT_TIME_NS
,
84 RADEON_NUM_MAPPED_BUFFERS
,
88 RADEON_NUM_BYTES_MOVED
,
91 RADEON_VRAM_VIS_USAGE
,
93 RADEON_GPU_TEMPERATURE
, /* DRM 2.42.0 */
96 RADEON_GPU_RESET_COUNTER
, /* DRM 2.43.0 */
97 RADEON_CS_THREAD_TIME
,
100 /* Each group of four has the same priority. */
101 enum radeon_bo_priority
{
102 RADEON_PRIO_FENCE
= 0,
104 RADEON_PRIO_SO_FILLED_SIZE
,
107 RADEON_PRIO_IB1
= 4, /* main IB submitted to the kernel */
108 RADEON_PRIO_IB2
, /* IB executed with INDIRECT_BUFFER */
109 RADEON_PRIO_DRAW_INDIRECT
,
110 RADEON_PRIO_INDEX_BUFFER
,
114 RADEON_PRIO_SDMA_BUFFER
,
115 RADEON_PRIO_SDMA_TEXTURE
,
117 RADEON_PRIO_CP_DMA
= 12,
119 RADEON_PRIO_CONST_BUFFER
= 16,
120 RADEON_PRIO_DESCRIPTORS
,
121 RADEON_PRIO_BORDER_COLORS
,
123 RADEON_PRIO_SAMPLER_BUFFER
= 20,
124 RADEON_PRIO_VERTEX_BUFFER
,
126 RADEON_PRIO_SHADER_RW_BUFFER
= 24,
127 RADEON_PRIO_COMPUTE_GLOBAL
,
129 RADEON_PRIO_SAMPLER_TEXTURE
= 28,
130 RADEON_PRIO_SHADER_RW_IMAGE
,
132 RADEON_PRIO_SAMPLER_TEXTURE_MSAA
= 32,
134 RADEON_PRIO_COLOR_BUFFER
= 36,
136 RADEON_PRIO_DEPTH_BUFFER
= 40,
138 RADEON_PRIO_COLOR_BUFFER_MSAA
= 44,
140 RADEON_PRIO_DEPTH_BUFFER_MSAA
= 48,
142 RADEON_PRIO_CMASK
= 52,
145 RADEON_PRIO_SHADER_BINARY
, /* the hw can't hide instruction cache misses */
147 RADEON_PRIO_SHADER_RINGS
= 56,
149 RADEON_PRIO_SCRATCH_BUFFER
= 60,
150 /* 63 is the maximum value */
153 struct winsys_handle
;
154 struct radeon_winsys_ctx
;
156 struct radeon_winsys_cs_chunk
{
157 unsigned cdw
; /* Number of used dwords. */
158 unsigned max_dw
; /* Maximum number of dwords. */
159 uint32_t *buf
; /* The base pointer of the chunk. */
162 struct radeon_winsys_cs
{
163 struct radeon_winsys_cs_chunk current
;
164 struct radeon_winsys_cs_chunk
*prev
;
165 unsigned num_prev
; /* Number of previous chunks. */
166 unsigned max_prev
; /* Space in array pointed to by prev. */
167 unsigned prev_dw
; /* Total number of dwords in previous chunks. */
169 /* Memory usage of the buffer list. These are always 0 for CE and preamble
176 /* PCI info: domain:bus:dev:func */
184 enum radeon_family family
;
185 enum chip_class chip_class
;
186 uint32_t gart_page_size
;
189 uint64_t vram_vis_size
;
190 uint64_t max_alloc_size
;
191 uint32_t min_alloc_size
;
192 bool has_dedicated_vram
;
193 bool has_virtual_memory
;
194 bool gfx_ib_pad_with_type2
;
197 uint32_t uvd_fw_version
;
198 uint32_t vce_fw_version
;
199 uint32_t me_fw_version
;
200 uint32_t pfp_fw_version
;
201 uint32_t ce_fw_version
;
202 uint32_t vce_harvest_config
;
203 uint32_t clock_crystal_freq
;
204 uint32_t tcc_cache_line_size
;
207 uint32_t drm_major
; /* version */
209 uint32_t drm_patchlevel
;
213 uint32_t r600_max_quad_pipes
; /* wave size / 16 */
214 uint32_t max_shader_clock
;
215 uint32_t num_good_compute_units
;
216 uint32_t max_se
; /* shader engines */
217 uint32_t max_sh_per_se
; /* shader arrays per shader engine */
219 /* Render backends (color + depth blocks). */
220 uint32_t r300_num_gb_pipes
;
221 uint32_t r300_num_z_pipes
;
222 uint32_t r600_gb_backend_map
; /* R600 harvest config */
223 bool r600_gb_backend_map_valid
;
224 uint32_t r600_num_banks
;
225 uint32_t num_render_backends
;
226 uint32_t num_tile_pipes
; /* pipe count from PIPE_CONFIG */
227 uint32_t pipe_interleave_bytes
;
228 uint32_t enabled_rb_mask
; /* GCN harvest config */
231 uint32_t si_tile_mode_array
[32];
232 uint32_t cik_macrotile_mode_array
[16];
235 /* Tiling info for display code, DRI sharing, and other data. */
236 struct radeon_bo_metadata
{
237 /* Tiling flags describing the texture layout for display code
242 enum radeon_bo_layout microtile
;
243 enum radeon_bo_layout macrotile
;
244 unsigned pipe_config
;
256 unsigned swizzle_mode
:5;
260 /* Additional metadata associated with the buffer, in bytes.
261 * The maximum size is 64 * 4. This is opaque for the winsys & kernel.
262 * Supported by amdgpu only.
264 uint32_t size_metadata
;
265 uint32_t metadata
[64];
268 enum radeon_feature_id
{
269 RADEON_FID_R300_HYPERZ_ACCESS
, /* ZMask + HiZ */
270 RADEON_FID_R300_CMASK_ACCESS
,
273 #define RADEON_SURF_MAX_LEVELS 15
275 enum radeon_surf_mode
{
276 RADEON_SURF_MODE_LINEAR_ALIGNED
= 1,
277 RADEON_SURF_MODE_1D
= 2,
278 RADEON_SURF_MODE_2D
= 3,
281 /* These are defined exactly like GB_TILE_MODEn.MICRO_TILE_MODE_NEW. */
282 enum radeon_micro_mode
{
283 RADEON_MICRO_MODE_DISPLAY
= 0,
284 RADEON_MICRO_MODE_THIN
= 1,
285 RADEON_MICRO_MODE_DEPTH
= 2,
286 RADEON_MICRO_MODE_ROTATED
= 3,
289 /* the first 16 bits are reserved for libdrm_radeon, don't use them */
290 #define RADEON_SURF_SCANOUT (1 << 16)
291 #define RADEON_SURF_ZBUFFER (1 << 17)
292 #define RADEON_SURF_SBUFFER (1 << 18)
293 #define RADEON_SURF_Z_OR_SBUFFER (RADEON_SURF_ZBUFFER | RADEON_SURF_SBUFFER)
294 /* bits 19 and 20 are reserved for libdrm_radeon, don't use them */
295 #define RADEON_SURF_FMASK (1 << 21)
296 #define RADEON_SURF_DISABLE_DCC (1 << 22)
297 #define RADEON_SURF_TC_COMPATIBLE_HTILE (1 << 23)
298 #define RADEON_SURF_IMPORTED (1 << 24)
299 #define RADEON_SURF_OPTIMIZE_FOR_SPACE (1 << 25)
301 struct legacy_surf_level
{
305 uint64_t dcc_fast_clear_size
;
308 enum radeon_surf_mode mode
;
311 struct legacy_surf_layout
{
312 unsigned bankw
:4; /* max 8 */
313 unsigned bankh
:4; /* max 8 */
314 unsigned mtilea
:4; /* max 8 */
315 unsigned tile_split
:13; /* max 4K */
316 unsigned stencil_tile_split
:13; /* max 4K */
317 unsigned pipe_config
:5; /* max 17 */
318 unsigned num_banks
:5; /* max 16 */
319 unsigned macro_tile_index
:4; /* max 15 */
321 /* Whether the depth miptree or stencil miptree as used by the DB are
322 * adjusted from their TC compatible form to ensure depth/stencil
323 * compatibility. If either is true, the corresponding plane cannot be
326 unsigned depth_adjusted
:1;
327 unsigned stencil_adjusted
:1;
329 struct legacy_surf_level level
[RADEON_SURF_MAX_LEVELS
];
330 struct legacy_surf_level stencil_level
[RADEON_SURF_MAX_LEVELS
];
331 uint8_t tiling_index
[RADEON_SURF_MAX_LEVELS
];
332 uint8_t stencil_tiling_index
[RADEON_SURF_MAX_LEVELS
];
335 /* Same as addrlib - AddrResourceType. */
336 enum gfx9_resource_type
{
337 RADEON_RESOURCE_1D
= 0,
342 struct gfx9_surf_flags
{
343 uint16_t swizzle_mode
; /* tile mode */
344 uint16_t epitch
; /* (pitch - 1) or (height - 1) */
347 struct gfx9_surf_meta_flags
{
348 unsigned rb_aligned
:1; /* optimal for RBs */
349 unsigned pipe_aligned
:1; /* optimal for TC */
352 struct gfx9_surf_layout
{
353 struct gfx9_surf_flags surf
; /* color or depth surface */
354 struct gfx9_surf_flags fmask
; /* not added to surf_size */
355 struct gfx9_surf_flags stencil
; /* added to surf_size, use stencil_offset */
357 struct gfx9_surf_meta_flags dcc
; /* metadata of color */
358 struct gfx9_surf_meta_flags htile
; /* metadata of depth and stencil */
359 struct gfx9_surf_meta_flags cmask
; /* metadata of fmask */
361 enum gfx9_resource_type resource_type
; /* 1D, 2D or 3D */
362 uint64_t surf_offset
; /* 0 unless imported with an offset */
363 /* The size of the 2D plane containing all mipmap levels. */
364 uint64_t surf_slice_size
;
365 uint16_t surf_pitch
; /* in blocks */
366 uint16_t surf_height
;
367 /* Y mipmap level offset in blocks. Only valid for LINEAR. */
368 uint16_t surf_ymip_offset
[RADEON_SURF_MAX_LEVELS
];
370 uint16_t dcc_pitch_max
; /* (mip chain pitch - 1) */
372 uint64_t stencil_offset
; /* separate stencil */
376 uint32_t fmask_alignment
;
377 uint32_t cmask_alignment
;
381 /* Format properties. */
385 /* Number of mipmap levels where DCC is enabled starting from level 0.
386 * Non-zero levels may be disabled due to alignment constraints, but not
389 unsigned num_dcc_levels
:4;
390 unsigned is_linear
:1;
391 /* Displayable, thin, depth, rotated. AKA D,S,Z,R swizzle modes. */
392 unsigned micro_tile_mode
:3;
395 /* These are return values. Some of them can be set by the caller, but
396 * they will be treated as hints (e.g. bankw, bankh) and might be
397 * changed by the calculator.
403 uint32_t surf_alignment
;
404 uint32_t dcc_alignment
;
405 uint32_t htile_alignment
;
408 /* R600-VI return values.
410 * Some of them can be set by the caller if certain parameters are
411 * desirable. The allocator will try to obey them.
413 struct legacy_surf_layout legacy
;
415 /* GFX9+ return values. */
416 struct gfx9_surf_layout gfx9
;
420 struct radeon_bo_list_item
{
423 uint64_t priority_usage
; /* mask of (1 << RADEON_PRIO_*) */
426 struct radeon_winsys
{
428 * The screen object this winsys was created for
430 struct pipe_screen
*screen
;
433 * Decrement the winsys reference count.
435 * \param ws The winsys this function is called for.
436 * \return True if the winsys and screen should be destroyed.
438 bool (*unref
)(struct radeon_winsys
*ws
);
441 * Destroy this winsys.
443 * \param ws The winsys this function is called from.
445 void (*destroy
)(struct radeon_winsys
*ws
);
448 * Query an info structure from winsys.
450 * \param ws The winsys this function is called from.
451 * \param info Return structure
453 void (*query_info
)(struct radeon_winsys
*ws
,
454 struct radeon_info
*info
);
456 /**************************************************************************
457 * Buffer management. Buffer attributes are mostly fixed over its lifetime.
459 * Remember that gallium gets to choose the interface it needs, and the
460 * window systems must then implement that interface (rather than the
461 * other way around...).
462 *************************************************************************/
465 * Create a buffer object.
467 * \param ws The winsys this function is called from.
468 * \param size The size to allocate.
469 * \param alignment An alignment of the buffer in memory.
470 * \param use_reusable_pool Whether the cache buffer manager should be used.
471 * \param domain A bitmask of the RADEON_DOMAIN_* flags.
472 * \return The created buffer object.
474 struct pb_buffer
*(*buffer_create
)(struct radeon_winsys
*ws
,
477 enum radeon_bo_domain domain
,
478 enum radeon_bo_flag flags
);
481 * Map the entire data store of a buffer object into the client's address
484 * \param buf A winsys buffer object to map.
485 * \param cs A command stream to flush if the buffer is referenced by it.
486 * \param usage A bitmask of the PIPE_TRANSFER_* flags.
487 * \return The pointer at the beginning of the buffer.
489 void *(*buffer_map
)(struct pb_buffer
*buf
,
490 struct radeon_winsys_cs
*cs
,
491 enum pipe_transfer_usage usage
);
494 * Unmap a buffer object from the client's address space.
496 * \param buf A winsys buffer object to unmap.
498 void (*buffer_unmap
)(struct pb_buffer
*buf
);
501 * Wait for the buffer and return true if the buffer is not used
504 * The timeout of 0 will only return the status.
505 * The timeout of PIPE_TIMEOUT_INFINITE will always wait until the buffer
508 bool (*buffer_wait
)(struct pb_buffer
*buf
, uint64_t timeout
,
509 enum radeon_bo_usage usage
);
512 * Return buffer metadata.
513 * (tiling info for display code, DRI sharing, and other data)
515 * \param buf A winsys buffer object to get the flags from.
518 void (*buffer_get_metadata
)(struct pb_buffer
*buf
,
519 struct radeon_bo_metadata
*md
);
522 * Set buffer metadata.
523 * (tiling info for display code, DRI sharing, and other data)
525 * \param buf A winsys buffer object to set the flags for.
528 void (*buffer_set_metadata
)(struct pb_buffer
*buf
,
529 struct radeon_bo_metadata
*md
);
532 * Get a winsys buffer from a winsys handle. The internal structure
533 * of the handle is platform-specific and only a winsys should access it.
535 * \param ws The winsys this function is called from.
536 * \param whandle A winsys handle pointer as was received from a state
538 * \param stride The returned buffer stride in bytes.
540 struct pb_buffer
*(*buffer_from_handle
)(struct radeon_winsys
*ws
,
541 struct winsys_handle
*whandle
,
542 unsigned *stride
, unsigned *offset
);
545 * Get a winsys buffer from a user pointer. The resulting buffer can't
546 * be exported. Both pointer and size must be page aligned.
548 * \param ws The winsys this function is called from.
549 * \param pointer User pointer to turn into a buffer object.
550 * \param Size Size in bytes for the new buffer.
552 struct pb_buffer
*(*buffer_from_ptr
)(struct radeon_winsys
*ws
,
553 void *pointer
, uint64_t size
);
556 * Whether the buffer was created from a user pointer.
558 * \param buf A winsys buffer object
559 * \return whether \p buf was created via buffer_from_ptr
561 bool (*buffer_is_user_ptr
)(struct pb_buffer
*buf
);
564 * Get a winsys handle from a winsys buffer. The internal structure
565 * of the handle is platform-specific and only a winsys should access it.
567 * \param buf A winsys buffer object to get the handle from.
568 * \param whandle A winsys handle pointer.
569 * \param stride A stride of the buffer in bytes, for texturing.
570 * \return true on success.
572 bool (*buffer_get_handle
)(struct pb_buffer
*buf
,
573 unsigned stride
, unsigned offset
,
575 struct winsys_handle
*whandle
);
578 * Return the virtual address of a buffer.
580 * When virtual memory is not in use, this is the offset relative to the
581 * relocation base (non-zero for sub-allocated buffers).
583 * \param buf A winsys buffer object
584 * \return virtual address
586 uint64_t (*buffer_get_virtual_address
)(struct pb_buffer
*buf
);
589 * Return the offset of this buffer relative to the relocation base.
590 * This is only non-zero for sub-allocated buffers.
592 * This is only supported in the radeon winsys, since amdgpu uses virtual
593 * addresses in submissions even for the video engines.
595 * \param buf A winsys buffer object
596 * \return the offset for relocations
598 unsigned (*buffer_get_reloc_offset
)(struct pb_buffer
*buf
);
601 * Query the initial placement of the buffer from the kernel driver.
603 enum radeon_bo_domain (*buffer_get_initial_domain
)(struct pb_buffer
*buf
);
605 /**************************************************************************
606 * Command submission.
608 * Each pipe context should create its own command stream and submit
609 * commands independently of other contexts.
610 *************************************************************************/
613 * Create a command submission context.
614 * Various command streams can be submitted to the same context.
616 struct radeon_winsys_ctx
*(*ctx_create
)(struct radeon_winsys
*ws
);
621 void (*ctx_destroy
)(struct radeon_winsys_ctx
*ctx
);
624 * Query a GPU reset status.
626 enum pipe_reset_status (*ctx_query_reset_status
)(struct radeon_winsys_ctx
*ctx
);
629 * Create a command stream.
631 * \param ctx The submission context
632 * \param ring_type The ring type (GFX, DMA, UVD)
633 * \param flush Flush callback function associated with the command stream.
634 * \param user User pointer that will be passed to the flush callback.
636 struct radeon_winsys_cs
*(*cs_create
)(struct radeon_winsys_ctx
*ctx
,
637 enum ring_type ring_type
,
638 void (*flush
)(void *ctx
, unsigned flags
,
639 struct pipe_fence_handle
**fence
),
643 * Add a constant engine IB to a graphics CS. This makes the graphics CS
644 * from "cs_create" a group of two IBs that share a buffer list and are
647 * The returned constant CS is only a stream for writing packets to the new
648 * IB. Calling other winsys functions with it is not allowed, not even
651 * In order to add buffers and check memory usage, use the graphics CS.
652 * In order to flush it, use the graphics CS, which will flush both IBs.
653 * Destroying the graphics CS will destroy both of them.
655 * \param cs The graphics CS from "cs_create" that will hold the buffer
656 * list and will be used for flushing.
658 struct radeon_winsys_cs
*(*cs_add_const_ib
)(struct radeon_winsys_cs
*cs
);
661 * Add a constant engine preamble IB to a graphics CS. This add an extra IB
662 * in similar manner to cs_add_const_ib. This should always be called after
665 * The returned IB is a constant engine IB that only gets flushed if the
668 * \param cs The graphics CS from "cs_create" that will hold the buffer
669 * list and will be used for flushing.
671 struct radeon_winsys_cs
*(*cs_add_const_preamble_ib
)(struct radeon_winsys_cs
*cs
);
673 * Destroy a command stream.
675 * \param cs A command stream to destroy.
677 void (*cs_destroy
)(struct radeon_winsys_cs
*cs
);
680 * Add a buffer. Each buffer used by a CS must be added using this function.
682 * \param cs Command stream
684 * \param usage Whether the buffer is used for read and/or write.
685 * \param domain Bitmask of the RADEON_DOMAIN_* flags.
686 * \param priority A higher number means a greater chance of being
687 * placed in the requested domain. 15 is the maximum.
688 * \return Buffer index.
690 unsigned (*cs_add_buffer
)(struct radeon_winsys_cs
*cs
,
691 struct pb_buffer
*buf
,
692 enum radeon_bo_usage usage
,
693 enum radeon_bo_domain domain
,
694 enum radeon_bo_priority priority
);
697 * Return the index of an already-added buffer.
699 * Not supported on amdgpu. Drivers with GPUVM should not care about
702 * \param cs Command stream
704 * \return The buffer index, or -1 if the buffer has not been added.
706 int (*cs_lookup_buffer
)(struct radeon_winsys_cs
*cs
,
707 struct pb_buffer
*buf
);
710 * Return true if there is enough memory in VRAM and GTT for the buffers
711 * added so far. If the validation fails, all buffers which have
712 * been added since the last call of cs_validate will be removed and
713 * the CS will be flushed (provided there are still any buffers).
715 * \param cs A command stream to validate.
717 bool (*cs_validate
)(struct radeon_winsys_cs
*cs
);
720 * Check whether the given number of dwords is available in the IB.
721 * Optionally chain a new chunk of the IB if necessary and supported.
723 * \param cs A command stream.
724 * \param dw Number of CS dwords requested by the caller.
726 bool (*cs_check_space
)(struct radeon_winsys_cs
*cs
, unsigned dw
);
729 * Return the buffer list.
731 * This is the buffer list as passed to the kernel, i.e. it only contains
732 * the parent buffers of sub-allocated buffers.
734 * \param cs Command stream
735 * \param list Returned buffer list. Set to NULL to query the count only.
736 * \return The buffer count.
738 unsigned (*cs_get_buffer_list
)(struct radeon_winsys_cs
*cs
,
739 struct radeon_bo_list_item
*list
);
742 * Flush a command stream.
744 * \param cs A command stream to flush.
745 * \param flags, RADEON_FLUSH_ASYNC or 0.
746 * \param fence Pointer to a fence. If non-NULL, a fence is inserted
747 * after the CS and is returned through this parameter.
748 * \return Negative POSIX error code or 0 for success.
749 * Asynchronous submissions never return an error.
751 int (*cs_flush
)(struct radeon_winsys_cs
*cs
,
753 struct pipe_fence_handle
**fence
);
756 * Create a fence before the CS is flushed.
757 * The user must flush manually to complete the initializaton of the fence.
758 * The fence must not be used before the flush.
760 struct pipe_fence_handle
*(*cs_get_next_fence
)(struct radeon_winsys_cs
*cs
);
763 * Return true if a buffer is referenced by a command stream.
765 * \param cs A command stream.
766 * \param buf A winsys buffer.
768 bool (*cs_is_buffer_referenced
)(struct radeon_winsys_cs
*cs
,
769 struct pb_buffer
*buf
,
770 enum radeon_bo_usage usage
);
773 * Request access to a feature for a command stream.
775 * \param cs A command stream.
776 * \param fid Feature ID, one of RADEON_FID_*
777 * \param enable Whether to enable or disable the feature.
779 bool (*cs_request_feature
)(struct radeon_winsys_cs
*cs
,
780 enum radeon_feature_id fid
,
783 * Make sure all asynchronous flush of the cs have completed
785 * \param cs A command stream.
787 void (*cs_sync_flush
)(struct radeon_winsys_cs
*cs
);
790 * Wait for the fence and return true if the fence has been signalled.
791 * The timeout of 0 will only return the status.
792 * The timeout of PIPE_TIMEOUT_INFINITE will always wait until the fence
795 bool (*fence_wait
)(struct radeon_winsys
*ws
,
796 struct pipe_fence_handle
*fence
,
800 * Reference counting for fences.
802 void (*fence_reference
)(struct pipe_fence_handle
**dst
,
803 struct pipe_fence_handle
*src
);
808 * \param ws The winsys this function is called from.
809 * \param tex Input texture description
810 * \param flags Bitmask of RADEON_SURF_* flags
811 * \param bpe Bytes per pixel, it can be different for Z buffers.
812 * \param mode Preferred tile mode. (linear, 1D, or 2D)
813 * \param surf Output structure
815 int (*surface_init
)(struct radeon_winsys
*ws
,
816 const struct pipe_resource
*tex
,
817 unsigned flags
, unsigned bpe
,
818 enum radeon_surf_mode mode
,
819 struct radeon_surf
*surf
);
821 uint64_t (*query_value
)(struct radeon_winsys
*ws
,
822 enum radeon_value_id value
);
824 bool (*read_registers
)(struct radeon_winsys
*ws
, unsigned reg_offset
,
825 unsigned num_registers
, uint32_t *out
);
828 static inline bool radeon_emitted(struct radeon_winsys_cs
*cs
, unsigned num_dw
)
830 return cs
&& (cs
->prev_dw
+ cs
->current
.cdw
> num_dw
);
833 static inline void radeon_emit(struct radeon_winsys_cs
*cs
, uint32_t value
)
835 cs
->current
.buf
[cs
->current
.cdw
++] = value
;
838 static inline void radeon_emit_array(struct radeon_winsys_cs
*cs
,
839 const uint32_t *values
, unsigned count
)
841 memcpy(cs
->current
.buf
+ cs
->current
.cdw
, values
, count
* 4);
842 cs
->current
.cdw
+= count
;