r600_pipe.h revision 669d8766ff3403938794eb80d7769347b6e52174
1/*
2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 *      Jerome Glisse
25 */
26#ifndef R600_PIPE_H
27#define R600_PIPE_H
28
29#include "util/u_slab.h"
30#include "r600.h"
31#include "r600_shader.h"
32#include "r600_resource.h"
33
34#define R600_MAX_CONST_BUFFERS 2
35#define R600_MAX_CONST_BUFFER_SIZE 4096
36
37#ifdef PIPE_ARCH_BIG_ENDIAN
38#define R600_BIG_ENDIAN 1
39#else
40#define R600_BIG_ENDIAN 0
41#endif
42
43enum r600_atom_flags {
44	/* When set, atoms are added at the beginning of the dirty list
45	 * instead of the end. */
46	EMIT_EARLY = (1 << 0)
47};
48
49/* This encapsulates a state or an operation which can emitted into the GPU
50 * command stream. It's not limited to states only, it can be used for anything
51 * that wants to write commands into the CS (e.g. cache flushes). */
52struct r600_atom {
53	void (*emit)(struct r600_context *ctx, struct r600_atom *state);
54
55	unsigned		num_dw;
56	enum r600_atom_flags	flags;
57	bool			dirty;
58
59	struct list_head	head;
60};
61
62/* This is an atom containing GPU commands that never change.
63 * This is supposed to be copied directly into the CS. */
64struct r600_command_buffer {
65	struct r600_atom atom;
66	uint32_t *buf;
67	unsigned max_num_dw;
68};
69
70struct r600_surface_sync_cmd {
71	struct r600_atom atom;
72	unsigned flush_flags; /* CP_COHER_CNTL */
73};
74
75struct r600_db_misc_state {
76	struct r600_atom atom;
77	bool occlusion_query_enabled;
78	bool flush_depthstencil_enabled;
79};
80
81enum r600_pipe_state_id {
82	R600_PIPE_STATE_BLEND = 0,
83	R600_PIPE_STATE_BLEND_COLOR,
84	R600_PIPE_STATE_CONFIG,
85	R600_PIPE_STATE_SEAMLESS_CUBEMAP,
86	R600_PIPE_STATE_CLIP,
87	R600_PIPE_STATE_SCISSOR,
88	R600_PIPE_STATE_VIEWPORT,
89	R600_PIPE_STATE_RASTERIZER,
90	R600_PIPE_STATE_VGT,
91	R600_PIPE_STATE_FRAMEBUFFER,
92	R600_PIPE_STATE_DSA,
93	R600_PIPE_STATE_STENCIL_REF,
94	R600_PIPE_STATE_PS_SHADER,
95	R600_PIPE_STATE_VS_SHADER,
96	R600_PIPE_STATE_CONSTANT,
97	R600_PIPE_STATE_SAMPLER,
98	R600_PIPE_STATE_RESOURCE,
99	R600_PIPE_STATE_POLYGON_OFFSET,
100	R600_PIPE_STATE_FETCH_SHADER,
101	R600_PIPE_NSTATES
102};
103
104struct r600_pipe_fences {
105	struct r600_resource		*bo;
106	unsigned			*data;
107	unsigned			next_index;
108	/* linked list of preallocated blocks */
109	struct list_head		blocks;
110	/* linked list of freed fences */
111	struct list_head		pool;
112	pipe_mutex			mutex;
113};
114
115struct r600_screen {
116	struct pipe_screen		screen;
117	struct radeon_winsys		*ws;
118	unsigned			family;
119	enum chip_class			chip_class;
120	struct radeon_info		info;
121	struct r600_tiling_info		tiling_info;
122	struct util_slab_mempool	pool_buffers;
123	struct r600_pipe_fences		fences;
124
125	unsigned			num_contexts;
126	bool				use_surface_alloc;
127
128	/* for thread-safe write accessing to num_contexts */
129	pipe_mutex			mutex_num_contexts;
130};
131
132struct r600_pipe_sampler_view {
133	struct pipe_sampler_view	base;
134	struct r600_pipe_resource_state		state;
135};
136
137struct r600_pipe_rasterizer {
138	struct r600_pipe_state		rstate;
139	boolean				flatshade;
140	boolean				two_side;
141	unsigned			sprite_coord_enable;
142	unsigned                        clip_plane_enable;
143	unsigned			pa_sc_line_stipple;
144	unsigned			pa_cl_clip_cntl;
145	float				offset_units;
146	float				offset_scale;
147	bool				scissor_enable;
148};
149
150struct r600_pipe_blend {
151	struct r600_pipe_state		rstate;
152	unsigned			cb_target_mask;
153	unsigned			cb_color_control;
154};
155
156struct r600_pipe_dsa {
157	struct r600_pipe_state		rstate;
158	unsigned			alpha_ref;
159	ubyte				valuemask[2];
160	ubyte				writemask[2];
161	bool				is_flush;
162};
163
164struct r600_vertex_element
165{
166	unsigned			count;
167	struct pipe_vertex_element	elements[PIPE_MAX_ATTRIBS];
168	struct u_vbuf_elements		*vmgr_elements;
169	struct r600_resource		*fetch_shader;
170	unsigned			fs_size;
171	struct r600_pipe_state		rstate;
172	/* if offset is to big for fetch instructio we need to alterate
173	 * offset of vertex buffer, record here the offset need to add
174	 */
175	unsigned			vbuffer_need_offset;
176	unsigned			vbuffer_offset[PIPE_MAX_ATTRIBS];
177};
178
179struct r600_pipe_shader {
180	struct r600_shader		shader;
181	struct r600_pipe_state		rstate;
182	struct r600_resource		*bo;
183	struct r600_resource		*bo_fetch;
184	struct r600_vertex_element	vertex_elements;
185	struct tgsi_token		*tokens;
186	unsigned	sprite_coord_enable;
187	unsigned	flatshade;
188	unsigned	pa_cl_vs_out_cntl;
189	struct pipe_stream_output_info	so;
190};
191
192struct r600_pipe_sampler_state {
193	struct r600_pipe_state		rstate;
194	boolean seamless_cube_map;
195};
196
197/* needed for blitter save */
198#define NUM_TEX_UNITS 16
199
200struct r600_textures_info {
201	struct r600_pipe_sampler_view	*views[NUM_TEX_UNITS];
202	struct r600_pipe_sampler_state	*samplers[NUM_TEX_UNITS];
203	unsigned			n_views;
204	unsigned			n_samplers;
205	bool				samplers_dirty;
206	bool				is_array_sampler[NUM_TEX_UNITS];
207};
208
209struct r600_fence {
210	struct pipe_reference		reference;
211	unsigned			index; /* in the shared bo */
212	struct r600_resource            *sleep_bo;
213	struct list_head		head;
214};
215
216#define FENCE_BLOCK_SIZE 16
217
218struct r600_fence_block {
219	struct r600_fence		fences[FENCE_BLOCK_SIZE];
220	struct list_head		head;
221};
222
223#define R600_CONSTANT_ARRAY_SIZE 256
224#define R600_RESOURCE_ARRAY_SIZE 160
225
226struct r600_stencil_ref
227{
228	ubyte ref_value[2];
229	ubyte valuemask[2];
230	ubyte writemask[2];
231};
232
233struct r600_context {
234	struct pipe_context		context;
235	struct blitter_context		*blitter;
236	enum radeon_family		family;
237	enum chip_class			chip_class;
238	unsigned			r6xx_num_clause_temp_gprs;
239	void				*custom_dsa_flush;
240	struct r600_screen		*screen;
241	struct radeon_winsys		*ws;
242	struct r600_pipe_state		*states[R600_PIPE_NSTATES];
243	struct r600_vertex_element	*vertex_elements;
244	struct r600_pipe_resource_state	fs_resource[PIPE_MAX_ATTRIBS];
245	struct pipe_framebuffer_state	framebuffer;
246	unsigned			cb_target_mask;
247	unsigned			cb_color_control;
248	unsigned			pa_sc_line_stipple;
249	unsigned			pa_cl_clip_cntl;
250	/* for saving when using blitter */
251	struct pipe_stencil_ref		stencil_ref;
252	struct pipe_viewport_state	viewport;
253	struct pipe_clip_state		clip;
254	struct r600_pipe_shader 	*ps_shader;
255	struct r600_pipe_shader 	*vs_shader;
256	struct r600_pipe_state		vs_const_buffer;
257	struct r600_pipe_resource_state		vs_const_buffer_resource[R600_MAX_CONST_BUFFERS];
258	struct r600_pipe_state		ps_const_buffer;
259	struct r600_pipe_resource_state		ps_const_buffer_resource[R600_MAX_CONST_BUFFERS];
260	struct r600_pipe_rasterizer	*rasterizer;
261	struct r600_pipe_state          vgt;
262	struct r600_pipe_state          spi;
263	struct pipe_query		*current_render_cond;
264	unsigned			current_render_cond_mode;
265	struct pipe_query		*saved_render_cond;
266	unsigned			saved_render_cond_mode;
267	/* shader information */
268	boolean				two_side;
269	unsigned			sprite_coord_enable;
270	boolean				export_16bpc;
271	unsigned			alpha_ref;
272	boolean				alpha_ref_dirty;
273	unsigned			nr_cbufs;
274	struct r600_textures_info	vs_samplers;
275	struct r600_textures_info	ps_samplers;
276
277	struct u_vbuf			*vbuf_mgr;
278	struct util_slab_mempool	pool_transfers;
279	boolean				have_depth_texture, have_depth_fb;
280
281	unsigned default_ps_gprs, default_vs_gprs;
282
283	/* States based on r600_atom. */
284	struct list_head		dirty_states;
285	struct r600_command_buffer	start_cs_cmd; /* invariant state mostly */
286	struct r600_surface_sync_cmd	surface_sync_cmd;
287	struct r600_atom		r6xx_flush_and_inv_cmd;
288	struct r600_db_misc_state	db_misc_state;
289
290	/* Below are variables from the old r600_context.
291	 */
292	struct radeon_winsys_cs	*cs;
293
294	struct r600_range	*range;
295	unsigned		nblocks;
296	struct r600_block	**blocks;
297	struct list_head	dirty;
298	struct list_head	resource_dirty;
299	struct list_head	enable_list;
300	unsigned		pm4_dirty_cdwords;
301	unsigned		ctx_pm4_ndwords;
302
303	/* The list of active queries. Only one query of each type can be active. */
304	int			num_occlusion_queries;
305
306	/* Manage queries in two separate groups:
307	 * The timer ones and the others (streamout, occlusion).
308	 *
309	 * We do this because we should only suspend non-timer queries for u_blitter,
310	 * and later if the non-timer queries are suspended, the context flush should
311	 * only suspend and resume the timer queries. */
312	struct list_head	active_timer_queries;
313	unsigned		num_cs_dw_timer_queries_suspend;
314	struct list_head	active_nontimer_queries;
315	unsigned		num_cs_dw_nontimer_queries_suspend;
316
317	unsigned		num_cs_dw_streamout_end;
318
319	unsigned		backend_mask;
320	unsigned                max_db; /* for OQ */
321	unsigned		flags;
322	boolean                 predicate_drawing;
323	struct r600_range	ps_resources;
324	struct r600_range	vs_resources;
325	struct r600_range	fs_resources;
326	int			num_ps_resources, num_vs_resources, num_fs_resources;
327
328	unsigned		num_so_targets;
329	struct r600_so_target	*so_targets[PIPE_MAX_SO_BUFFERS];
330	boolean			streamout_start;
331	unsigned		streamout_append_bitmask;
332
333	/* There is no scissor enable bit on r6xx, so we must use a workaround.
334	 * These track the current scissor state. */
335	bool			scissor_enable;
336	struct pipe_scissor_state scissor_state;
337
338	/* With rasterizer discard, there doesn't have to be a pixel shader.
339	 * In that case, we bind this one: */
340	void			*dummy_pixel_shader;
341};
342
343static INLINE void r600_emit_atom(struct r600_context *rctx, struct r600_atom *atom)
344{
345	atom->emit(rctx, atom);
346	atom->dirty = false;
347	if (atom->head.next && atom->head.prev)
348		LIST_DELINIT(&atom->head);
349}
350
351static INLINE void r600_atom_dirty(struct r600_context *rctx, struct r600_atom *state)
352{
353	if (!state->dirty) {
354		if (state->flags & EMIT_EARLY) {
355			LIST_ADD(&state->head, &rctx->dirty_states);
356		} else {
357			LIST_ADDTAIL(&state->head, &rctx->dirty_states);
358		}
359		state->dirty = true;
360	}
361}
362
363/* evergreen_state.c */
364void evergreen_init_state_functions(struct r600_context *rctx);
365void evergreen_init_atom_start_cs(struct r600_context *rctx);
366void evergreen_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shader);
367void evergreen_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader *shader);
368void evergreen_fetch_shader(struct pipe_context *ctx, struct r600_vertex_element *ve);
369void *evergreen_create_db_flush_dsa(struct r600_context *rctx);
370void evergreen_polygon_offset_update(struct r600_context *rctx);
371void evergreen_pipe_init_buffer_resource(struct r600_context *rctx,
372					 struct r600_pipe_resource_state *rstate);
373void evergreen_pipe_mod_buffer_resource(struct pipe_context *ctx,
374					struct r600_pipe_resource_state *rstate,
375					struct r600_resource *rbuffer,
376					unsigned offset, unsigned stride,
377					enum radeon_bo_usage usage);
378boolean evergreen_is_format_supported(struct pipe_screen *screen,
379				      enum pipe_format format,
380				      enum pipe_texture_target target,
381				      unsigned sample_count,
382				      unsigned usage);
383
384/* r600_blit.c */
385void r600_init_blit_functions(struct r600_context *rctx);
386void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture);
387void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture);
388void r600_flush_depth_textures(struct r600_context *rctx);
389
390/* r600_buffer.c */
391bool r600_init_resource(struct r600_screen *rscreen,
392			struct r600_resource *res,
393			unsigned size, unsigned alignment,
394			unsigned bind, unsigned usage);
395struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
396					 const struct pipe_resource *templ);
397struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
398					      void *ptr, unsigned bytes,
399					      unsigned bind);
400void r600_upload_index_buffer(struct r600_context *rctx,
401			      struct pipe_index_buffer *ib, unsigned count);
402
403
404/* r600_pipe.c */
405void r600_flush(struct pipe_context *ctx, struct pipe_fence_handle **fence,
406		unsigned flags);
407
408/* r600_query.c */
409void r600_init_query_functions(struct r600_context *rctx);
410void r600_suspend_nontimer_queries(struct r600_context *ctx);
411void r600_resume_nontimer_queries(struct r600_context *ctx);
412void r600_suspend_timer_queries(struct r600_context *ctx);
413void r600_resume_timer_queries(struct r600_context *ctx);
414
415/* r600_resource.c */
416void r600_init_context_resource_functions(struct r600_context *r600);
417
418/* r600_shader.c */
419int r600_pipe_shader_create(struct pipe_context *ctx, struct r600_pipe_shader *shader);
420void r600_pipe_shader_destroy(struct pipe_context *ctx, struct r600_pipe_shader *shader);
421int r600_find_vs_semantic_index(struct r600_shader *vs,
422				struct r600_shader *ps, int id);
423
424/* r600_state.c */
425void r600_set_scissor_state(struct r600_context *rctx,
426			    const struct pipe_scissor_state *state);
427void r600_update_sampler_states(struct r600_context *rctx);
428void r600_init_state_functions(struct r600_context *rctx);
429void r600_init_atom_start_cs(struct r600_context *rctx);
430void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shader);
431void r600_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader *shader);
432void r600_fetch_shader(struct pipe_context *ctx, struct r600_vertex_element *ve);
433void *r600_create_db_flush_dsa(struct r600_context *rctx);
434void r600_polygon_offset_update(struct r600_context *rctx);
435void r600_pipe_init_buffer_resource(struct r600_context *rctx,
436				    struct r600_pipe_resource_state *rstate);
437void r600_pipe_mod_buffer_resource(struct r600_pipe_resource_state *rstate,
438				   struct r600_resource *rbuffer,
439				   unsigned offset, unsigned stride,
440				   enum radeon_bo_usage usage);
441void r600_adjust_gprs(struct r600_context *rctx);
442boolean r600_is_format_supported(struct pipe_screen *screen,
443				 enum pipe_format format,
444				 enum pipe_texture_target target,
445				 unsigned sample_count,
446				 unsigned usage);
447
448/* r600_texture.c */
449void r600_init_screen_texture_functions(struct pipe_screen *screen);
450void r600_init_surface_functions(struct r600_context *r600);
451uint32_t r600_translate_texformat(struct pipe_screen *screen, enum pipe_format format,
452				  const unsigned char *swizzle_view,
453				  uint32_t *word4_p, uint32_t *yuv_format_p);
454unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
455					unsigned level, unsigned layer);
456
457/* r600_translate.c */
458void r600_translate_index_buffer(struct r600_context *r600,
459				 struct pipe_index_buffer *ib,
460				 unsigned count);
461
462/* r600_state_common.c */
463void r600_init_atom(struct r600_atom *atom,
464		    void (*emit)(struct r600_context *ctx, struct r600_atom *state),
465		    unsigned num_dw, enum r600_atom_flags flags);
466void r600_init_common_atoms(struct r600_context *rctx);
467unsigned r600_get_cb_flush_flags(struct r600_context *rctx);
468void r600_texture_barrier(struct pipe_context *ctx);
469void r600_set_index_buffer(struct pipe_context *ctx,
470			   const struct pipe_index_buffer *ib);
471void r600_set_vertex_buffers(struct pipe_context *ctx, unsigned count,
472			     const struct pipe_vertex_buffer *buffers);
473void *r600_create_vertex_elements(struct pipe_context *ctx,
474				  unsigned count,
475				  const struct pipe_vertex_element *elements);
476void r600_delete_vertex_element(struct pipe_context *ctx, void *state);
477void r600_bind_blend_state(struct pipe_context *ctx, void *state);
478void r600_set_blend_color(struct pipe_context *ctx,
479			  const struct pipe_blend_color *state);
480void r600_bind_dsa_state(struct pipe_context *ctx, void *state);
481void r600_set_max_scissor(struct r600_context *rctx);
482void r600_bind_rs_state(struct pipe_context *ctx, void *state);
483void r600_delete_rs_state(struct pipe_context *ctx, void *state);
484void r600_sampler_view_destroy(struct pipe_context *ctx,
485			       struct pipe_sampler_view *state);
486void r600_delete_state(struct pipe_context *ctx, void *state);
487void r600_bind_vertex_elements(struct pipe_context *ctx, void *state);
488void *r600_create_shader_state(struct pipe_context *ctx,
489			       const struct pipe_shader_state *state);
490void r600_bind_ps_shader(struct pipe_context *ctx, void *state);
491void r600_bind_vs_shader(struct pipe_context *ctx, void *state);
492void r600_delete_ps_shader(struct pipe_context *ctx, void *state);
493void r600_delete_vs_shader(struct pipe_context *ctx, void *state);
494void r600_set_constant_buffer(struct pipe_context *ctx, uint shader, uint index,
495			      struct pipe_resource *buffer);
496struct pipe_stream_output_target *
497r600_create_so_target(struct pipe_context *ctx,
498		      struct pipe_resource *buffer,
499		      unsigned buffer_offset,
500		      unsigned buffer_size);
501void r600_so_target_destroy(struct pipe_context *ctx,
502			    struct pipe_stream_output_target *target);
503void r600_set_so_targets(struct pipe_context *ctx,
504			 unsigned num_targets,
505			 struct pipe_stream_output_target **targets,
506			 unsigned append_bitmask);
507void r600_set_pipe_stencil_ref(struct pipe_context *ctx,
508			       const struct pipe_stencil_ref *state);
509void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info);
510uint32_t r600_translate_stencil_op(int s_op);
511uint32_t r600_translate_fill(uint32_t func);
512unsigned r600_tex_wrap(unsigned wrap);
513unsigned r600_tex_filter(unsigned filter);
514unsigned r600_tex_mipfilter(unsigned filter);
515unsigned r600_tex_compare(unsigned compare);
516
517/*
518 * Helpers for building command buffers
519 */
520
521#define PKT3_SET_CONFIG_REG	0x68
522#define PKT3_SET_CONTEXT_REG	0x69
523#define PKT3_SET_CTL_CONST      0x6F
524#define PKT3_SET_LOOP_CONST                    0x6C
525
526#define R600_CONFIG_REG_OFFSET	0x08000
527#define R600_CONTEXT_REG_OFFSET 0x28000
528#define R600_CTL_CONST_OFFSET   0x3CFF0
529#define R600_LOOP_CONST_OFFSET                 0X0003E200
530#define EG_LOOP_CONST_OFFSET               0x0003A200
531
532#define PKT_TYPE_S(x)                   (((x) & 0x3) << 30)
533#define PKT_COUNT_S(x)                  (((x) & 0x3FFF) << 16)
534#define PKT3_IT_OPCODE_S(x)             (((x) & 0xFF) << 8)
535#define PKT3_PREDICATE(x)               (((x) >> 0) & 0x1)
536#define PKT3(op, count, predicate) (PKT_TYPE_S(3) | PKT_COUNT_S(count) | PKT3_IT_OPCODE_S(op) | PKT3_PREDICATE(predicate))
537
538static INLINE void r600_store_value(struct r600_command_buffer *cb, unsigned value)
539{
540	cb->buf[cb->atom.num_dw++] = value;
541}
542
543static INLINE void r600_store_config_reg_seq(struct r600_command_buffer *cb, unsigned reg, unsigned num)
544{
545	assert(reg < R600_CONTEXT_REG_OFFSET);
546	assert(cb->atom.num_dw+2+num <= cb->max_num_dw);
547	cb->buf[cb->atom.num_dw++] = PKT3(PKT3_SET_CONFIG_REG, num, 0);
548	cb->buf[cb->atom.num_dw++] = (reg - R600_CONFIG_REG_OFFSET) >> 2;
549}
550
551static INLINE void r600_store_context_reg_seq(struct r600_command_buffer *cb, unsigned reg, unsigned num)
552{
553	assert(reg >= R600_CONTEXT_REG_OFFSET && reg < R600_CTL_CONST_OFFSET);
554	assert(cb->atom.num_dw+2+num <= cb->max_num_dw);
555	cb->buf[cb->atom.num_dw++] = PKT3(PKT3_SET_CONTEXT_REG, num, 0);
556	cb->buf[cb->atom.num_dw++] = (reg - R600_CONTEXT_REG_OFFSET) >> 2;
557}
558
559static INLINE void r600_store_ctl_const_seq(struct r600_command_buffer *cb, unsigned reg, unsigned num)
560{
561	assert(reg >= R600_CTL_CONST_OFFSET);
562	assert(cb->atom.num_dw+2+num <= cb->max_num_dw);
563	cb->buf[cb->atom.num_dw++] = PKT3(PKT3_SET_CTL_CONST, num, 0);
564	cb->buf[cb->atom.num_dw++] = (reg - R600_CTL_CONST_OFFSET) >> 2;
565}
566
567static INLINE void r600_store_loop_const_seq(struct r600_command_buffer *cb, unsigned reg, unsigned num)
568{
569	assert(reg >= R600_LOOP_CONST_OFFSET);
570	assert(cb->atom.num_dw+2+num <= cb->max_num_dw);
571	cb->buf[cb->atom.num_dw++] = PKT3(PKT3_SET_LOOP_CONST, num, 0);
572	cb->buf[cb->atom.num_dw++] = (reg - R600_LOOP_CONST_OFFSET) >> 2;
573}
574
575static INLINE void eg_store_loop_const_seq(struct r600_command_buffer *cb, unsigned reg, unsigned num)
576{
577	assert(reg >= EG_LOOP_CONST_OFFSET);
578	assert(cb->atom.num_dw+2+num <= cb->max_num_dw);
579	cb->buf[cb->atom.num_dw++] = PKT3(PKT3_SET_LOOP_CONST, num, 0);
580	cb->buf[cb->atom.num_dw++] = (reg - EG_LOOP_CONST_OFFSET) >> 2;
581}
582
583static INLINE void r600_store_config_reg(struct r600_command_buffer *cb, unsigned reg, unsigned value)
584{
585	r600_store_config_reg_seq(cb, reg, 1);
586	r600_store_value(cb, value);
587}
588
589static INLINE void r600_store_context_reg(struct r600_command_buffer *cb, unsigned reg, unsigned value)
590{
591	r600_store_context_reg_seq(cb, reg, 1);
592	r600_store_value(cb, value);
593}
594
595static INLINE void r600_store_ctl_const(struct r600_command_buffer *cb, unsigned reg, unsigned value)
596{
597	r600_store_ctl_const_seq(cb, reg, 1);
598	r600_store_value(cb, value);
599}
600
601static INLINE void r600_store_loop_const(struct r600_command_buffer *cb, unsigned reg, unsigned value)
602{
603	r600_store_loop_const_seq(cb, reg, 1);
604	r600_store_value(cb, value);
605}
606
607static INLINE void eg_store_loop_const(struct r600_command_buffer *cb, unsigned reg, unsigned value)
608{
609	eg_store_loop_const_seq(cb, reg, 1);
610	r600_store_value(cb, value);
611}
612
613void r600_init_command_buffer(struct r600_command_buffer *cb, unsigned num_dw, enum r600_atom_flags flags);
614void r600_release_command_buffer(struct r600_command_buffer *cb);
615
616/*
617 * Helpers for emitting state into a command stream directly.
618 */
619
620static INLINE unsigned r600_context_bo_reloc(struct r600_context *ctx, struct r600_resource *rbo,
621					     enum radeon_bo_usage usage)
622{
623	assert(usage);
624	return ctx->ws->cs_add_reloc(ctx->cs, rbo->cs_buf, usage, rbo->domains) * 4;
625}
626
627static INLINE void r600_write_value(struct radeon_winsys_cs *cs, unsigned value)
628{
629	cs->buf[cs->cdw++] = value;
630}
631
632static INLINE void r600_write_config_reg_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
633{
634	assert(reg < R600_CONTEXT_REG_OFFSET);
635	assert(cs->cdw+2+num <= RADEON_MAX_CMDBUF_DWORDS);
636	cs->buf[cs->cdw++] = PKT3(PKT3_SET_CONFIG_REG, num, 0);
637	cs->buf[cs->cdw++] = (reg - R600_CONFIG_REG_OFFSET) >> 2;
638}
639
640static INLINE void r600_write_context_reg_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
641{
642	assert(reg >= R600_CONTEXT_REG_OFFSET && reg < R600_CTL_CONST_OFFSET);
643	assert(cs->cdw+2+num <= RADEON_MAX_CMDBUF_DWORDS);
644	cs->buf[cs->cdw++] = PKT3(PKT3_SET_CONTEXT_REG, num, 0);
645	cs->buf[cs->cdw++] = (reg - R600_CONTEXT_REG_OFFSET) >> 2;
646}
647
648static INLINE void r600_write_ctl_const_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
649{
650	assert(reg >= R600_CTL_CONST_OFFSET);
651	assert(cs->cdw+2+num <= RADEON_MAX_CMDBUF_DWORDS);
652	cs->buf[cs->cdw++] = PKT3(PKT3_SET_CTL_CONST, num, 0);
653	cs->buf[cs->cdw++] = (reg - R600_CTL_CONST_OFFSET) >> 2;
654}
655
656static INLINE void r600_write_config_reg(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
657{
658	r600_write_config_reg_seq(cs, reg, 1);
659	r600_write_value(cs, value);
660}
661
662static INLINE void r600_write_context_reg(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
663{
664	r600_write_context_reg_seq(cs, reg, 1);
665	r600_write_value(cs, value);
666}
667
668static INLINE void r600_write_ctl_const(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
669{
670	r600_write_ctl_const_seq(cs, reg, 1);
671	r600_write_value(cs, value);
672}
673
674/*
675 * common helpers
676 */
677static INLINE uint32_t S_FIXED(float value, uint32_t frac_bits)
678{
679	return value * (1 << frac_bits);
680}
681#define ALIGN_DIVUP(x, y) (((x) + (y) - 1) / (y))
682
683static inline unsigned r600_tex_aniso_filter(unsigned filter)
684{
685	if (filter <= 1)   return 0;
686	if (filter <= 2)   return 1;
687	if (filter <= 4)   return 2;
688	if (filter <= 8)   return 3;
689	 /* else */        return 4;
690}
691
692/* 12.4 fixed-point */
693static INLINE unsigned r600_pack_float_12p4(float x)
694{
695	return x <= 0    ? 0 :
696	       x >= 4096 ? 0xffff : x * 16;
697}
698
699static INLINE uint64_t r600_resource_va(struct pipe_screen *screen, struct pipe_resource *resource)
700{
701	struct r600_screen *rscreen = (struct r600_screen*)screen;
702	struct r600_resource *rresource = (struct r600_resource*)resource;
703
704	return rscreen->ws->buffer_get_virtual_address(rresource->cs_buf);
705}
706
707#endif
708