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1 /*
2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
3  * Copyright 2015 Advanced Micro Devices, Inc.
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * on the rights to use, copy, modify, merge, publish, distribute, sub
10  * license, and/or sell copies of the Software, and to permit persons to whom
11  * the Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the next
14  * paragraph) shall be included in all copies or substantial portions of the
15  * Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
21  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
23  * USE OR OTHER DEALINGS IN THE SOFTWARE.
24  */
25 
26 #include "si_pipe.h"
27 #include "sid.h"
28 
minify_as_blocks(unsigned width,unsigned level,unsigned blk_w)29 static unsigned minify_as_blocks(unsigned width, unsigned level, unsigned blk_w)
30 {
31    width = u_minify(width, level);
32    return DIV_ROUND_UP(width, blk_w);
33 }
34 
encode_tile_info(struct si_context * sctx,struct si_texture * tex,unsigned level,bool set_bpp)35 static unsigned encode_tile_info(struct si_context *sctx, struct si_texture *tex, unsigned level,
36                                  bool set_bpp)
37 {
38    struct radeon_info *info = &sctx->screen->info;
39    unsigned tile_index = tex->surface.u.legacy.tiling_index[level];
40    unsigned macro_tile_index = tex->surface.u.legacy.macro_tile_index;
41    unsigned tile_mode = info->si_tile_mode_array[tile_index];
42    unsigned macro_tile_mode = info->cik_macrotile_mode_array[macro_tile_index];
43 
44    return (set_bpp ? util_logbase2(tex->surface.bpe) : 0) | (G_009910_ARRAY_MODE(tile_mode) << 3) |
45           (G_009910_MICRO_TILE_MODE_NEW(tile_mode) << 8) |
46           /* Non-depth modes don't have TILE_SPLIT set. */
47           ((util_logbase2(tex->surface.u.legacy.tile_split >> 6)) << 11) |
48           (G_009990_BANK_WIDTH(macro_tile_mode) << 15) |
49           (G_009990_BANK_HEIGHT(macro_tile_mode) << 18) |
50           (G_009990_NUM_BANKS(macro_tile_mode) << 21) |
51           (G_009990_MACRO_TILE_ASPECT(macro_tile_mode) << 24) |
52           (G_009910_PIPE_CONFIG(tile_mode) << 26);
53 }
54 
si_sdma_v4_copy_texture(struct si_context * sctx,struct pipe_resource * dst,unsigned dst_level,unsigned dstx,unsigned dsty,unsigned dstz,struct pipe_resource * src,unsigned src_level,const struct pipe_box * src_box)55 static bool si_sdma_v4_copy_texture(struct si_context *sctx, struct pipe_resource *dst,
56                                     unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz,
57                                     struct pipe_resource *src, unsigned src_level,
58                                     const struct pipe_box *src_box)
59 {
60    struct si_texture *ssrc = (struct si_texture *)src;
61    struct si_texture *sdst = (struct si_texture *)dst;
62 
63    unsigned bpp = sdst->surface.bpe;
64    uint64_t dst_address = sdst->buffer.gpu_address + sdst->surface.u.gfx9.surf_offset;
65    uint64_t src_address = ssrc->buffer.gpu_address + ssrc->surface.u.gfx9.surf_offset;
66    unsigned dst_pitch = sdst->surface.u.gfx9.surf_pitch;
67    unsigned src_pitch = ssrc->surface.u.gfx9.surf_pitch;
68    uint64_t dst_slice_pitch = ((uint64_t)sdst->surface.u.gfx9.surf_slice_size) / bpp;
69    uint64_t src_slice_pitch = ((uint64_t)ssrc->surface.u.gfx9.surf_slice_size) / bpp;
70    unsigned srcx = src_box->x / ssrc->surface.blk_w;
71    unsigned srcy = src_box->y / ssrc->surface.blk_h;
72    unsigned srcz = src_box->z;
73    unsigned copy_width = DIV_ROUND_UP(src_box->width, ssrc->surface.blk_w);
74    unsigned copy_height = DIV_ROUND_UP(src_box->height, ssrc->surface.blk_h);
75    unsigned copy_depth = src_box->depth;
76    unsigned xalign = MAX2(1, 4 / bpp);
77 
78    assert(src_level <= src->last_level);
79    assert(dst_level <= dst->last_level);
80    assert(sdst->surface.u.gfx9.surf_offset + dst_slice_pitch * bpp * (dstz + src_box->depth) <=
81           sdst->buffer.buf->size);
82    assert(ssrc->surface.u.gfx9.surf_offset + src_slice_pitch * bpp * (srcz + src_box->depth) <=
83           ssrc->buffer.buf->size);
84 
85    if (!si_prepare_for_dma_blit(sctx, sdst, dst_level, dstx, dsty, dstz, ssrc, src_level, src_box))
86       return false;
87 
88    dstx /= sdst->surface.blk_w;
89    dsty /= sdst->surface.blk_h;
90 
91    if (srcx >= (1 << 14) || srcy >= (1 << 14) || srcz >= (1 << 11) || dstx >= (1 << 14) ||
92        dsty >= (1 << 14) || dstz >= (1 << 11))
93       return false;
94 
95    /* Linear -> linear sub-window copy. */
96    if (ssrc->surface.is_linear && sdst->surface.is_linear) {
97       struct radeon_cmdbuf *cs = sctx->sdma_cs;
98 
99       /* Check if everything fits into the bitfields */
100       if (!(src_pitch <= (1 << 19) && dst_pitch <= (1 << 19) && src_slice_pitch <= (1 << 28) &&
101             dst_slice_pitch <= (1 << 28) && copy_width <= (1 << 14) && copy_height <= (1 << 14) &&
102             copy_depth <= (1 << 11)))
103          return false;
104 
105       si_need_dma_space(sctx, 13, &sdst->buffer, &ssrc->buffer);
106 
107       src_address += ssrc->surface.u.gfx9.offset[src_level];
108       dst_address += sdst->surface.u.gfx9.offset[dst_level];
109 
110       /* Check alignments */
111       if ((src_address % 4) != 0 || (dst_address % 4) != 0 || (src_pitch % xalign) != 0)
112          return false;
113 
114       radeon_emit(
115          cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY, CIK_SDMA_COPY_SUB_OPCODE_LINEAR_SUB_WINDOW,
116                              sctx->ws->cs_is_secure(cs) ? (1u << 2) : 0) |
117                              (util_logbase2(bpp) << 29));
118       radeon_emit(cs, src_address);
119       radeon_emit(cs, src_address >> 32);
120       radeon_emit(cs, srcx | (srcy << 16));
121       radeon_emit(cs, srcz | ((src_pitch - 1) << 13));
122       radeon_emit(cs, src_slice_pitch - 1);
123       radeon_emit(cs, dst_address);
124       radeon_emit(cs, dst_address >> 32);
125       radeon_emit(cs, dstx | (dsty << 16));
126       radeon_emit(cs, dstz | ((dst_pitch - 1) << 13));
127       radeon_emit(cs, dst_slice_pitch - 1);
128       radeon_emit(cs, (copy_width - 1) | ((copy_height - 1) << 16));
129       radeon_emit(cs, (copy_depth - 1));
130       return true;
131    }
132 
133    /* Linear <-> Tiled sub-window copy */
134    if (ssrc->surface.is_linear != sdst->surface.is_linear) {
135       struct si_texture *tiled = ssrc->surface.is_linear ? sdst : ssrc;
136       struct si_texture *linear = tiled == ssrc ? sdst : ssrc;
137       unsigned tiled_level = tiled == ssrc ? src_level : dst_level;
138       unsigned linear_level = linear == ssrc ? src_level : dst_level;
139       unsigned tiled_x = tiled == ssrc ? srcx : dstx;
140       unsigned linear_x = linear == ssrc ? srcx : dstx;
141       unsigned tiled_y = tiled == ssrc ? srcy : dsty;
142       unsigned linear_y = linear == ssrc ? srcy : dsty;
143       unsigned tiled_z = tiled == ssrc ? srcz : dstz;
144       unsigned linear_z = linear == ssrc ? srcz : dstz;
145       unsigned tiled_width = tiled == ssrc
146                                 ? DIV_ROUND_UP(ssrc->buffer.b.b.width0, ssrc->surface.blk_w)
147                                 : DIV_ROUND_UP(sdst->buffer.b.b.width0, sdst->surface.blk_w);
148       unsigned tiled_height = tiled == ssrc
149                                  ? DIV_ROUND_UP(ssrc->buffer.b.b.height0, ssrc->surface.blk_h)
150                                  : DIV_ROUND_UP(sdst->buffer.b.b.height0, sdst->surface.blk_h);
151       unsigned tiled_depth = tiled == ssrc ? ssrc->buffer.b.b.depth0 : sdst->buffer.b.b.depth0;
152       unsigned linear_pitch = linear == ssrc ? src_pitch : dst_pitch;
153       unsigned linear_slice_pitch = linear == ssrc ? src_slice_pitch : dst_slice_pitch;
154       uint64_t tiled_address = tiled == ssrc ? src_address : dst_address;
155       uint64_t linear_address = linear == ssrc ? src_address : dst_address;
156       struct radeon_cmdbuf *cs = sctx->sdma_cs;
157 
158       linear_address += linear->surface.u.gfx9.offset[linear_level];
159 
160       /* Check if everything fits into the bitfields */
161       if (!(tiled_x <= (1 << 14) && tiled_y <= (1 << 14) && tiled_z <= (1 << 11) &&
162             tiled_width <= (1 << 14) && tiled_height <= (1 << 14) && tiled_depth <= (1 << 11) &&
163             linear_x <= (1 << 14) && linear_y <= (1 << 14) && linear_z <= (1 << 11) &&
164             linear_pitch <= (1 << 14) && linear_slice_pitch <= (1 << 28) &&
165             copy_width <= (1 << 14) && copy_height <= (1 << 14) && copy_depth <= (1 << 11)))
166          return false;
167 
168       /* Check alignments */
169       if ((tiled_address % 256 != 0) || (linear_address % 4 != 0) || (linear_pitch % xalign != 0) ||
170           (linear_slice_pitch % xalign != 0))
171          return false;
172 
173       si_need_dma_space(sctx, 14, &sdst->buffer, &ssrc->buffer);
174 
175       radeon_emit(
176          cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY, CIK_SDMA_COPY_SUB_OPCODE_TILED_SUB_WINDOW,
177                              sctx->ws->cs_is_secure(cs) ? (1u << 2) : 0) |
178              tiled->buffer.b.b.last_level << 20 | tiled_level << 24 |
179              (linear == sdst ? 1u : 0) << 31);
180       radeon_emit(cs, (uint32_t)tiled_address);
181       radeon_emit(cs, (uint32_t)(tiled_address >> 32));
182       radeon_emit(cs, tiled_x | (tiled_y << 16));
183       radeon_emit(cs, tiled_z | ((tiled_width - 1) << 16));
184       radeon_emit(cs, (tiled_height - 1) | (tiled_depth - 1) << 16);
185       radeon_emit(cs, util_logbase2(bpp) | tiled->surface.u.gfx9.surf.swizzle_mode << 3 |
186                          tiled->surface.u.gfx9.resource_type << 9 |
187                          tiled->surface.u.gfx9.surf.epitch << 16);
188       radeon_emit(cs, (uint32_t)linear_address);
189       radeon_emit(cs, (uint32_t)(linear_address >> 32));
190       radeon_emit(cs, linear_x | (linear_y << 16));
191       radeon_emit(cs, linear_z | ((linear_pitch - 1) << 16));
192       radeon_emit(cs, linear_slice_pitch - 1);
193       radeon_emit(cs, (copy_width - 1) | ((copy_height - 1) << 16));
194       radeon_emit(cs, (copy_depth - 1));
195       return true;
196    }
197 
198    return false;
199 }
200 
cik_sdma_copy_texture(struct si_context * sctx,struct pipe_resource * dst,unsigned dst_level,unsigned dstx,unsigned dsty,unsigned dstz,struct pipe_resource * src,unsigned src_level,const struct pipe_box * src_box)201 static bool cik_sdma_copy_texture(struct si_context *sctx, struct pipe_resource *dst,
202                                   unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz,
203                                   struct pipe_resource *src, unsigned src_level,
204                                   const struct pipe_box *src_box)
205 {
206    struct radeon_info *info = &sctx->screen->info;
207    struct si_texture *ssrc = (struct si_texture *)src;
208    struct si_texture *sdst = (struct si_texture *)dst;
209    unsigned bpp = sdst->surface.bpe;
210    uint64_t dst_address = sdst->buffer.gpu_address + sdst->surface.u.legacy.level[dst_level].offset;
211    uint64_t src_address = ssrc->buffer.gpu_address + ssrc->surface.u.legacy.level[src_level].offset;
212    unsigned dst_mode = sdst->surface.u.legacy.level[dst_level].mode;
213    unsigned src_mode = ssrc->surface.u.legacy.level[src_level].mode;
214    unsigned dst_tile_index = sdst->surface.u.legacy.tiling_index[dst_level];
215    unsigned src_tile_index = ssrc->surface.u.legacy.tiling_index[src_level];
216    unsigned dst_tile_mode = info->si_tile_mode_array[dst_tile_index];
217    unsigned src_tile_mode = info->si_tile_mode_array[src_tile_index];
218    unsigned dst_micro_mode = G_009910_MICRO_TILE_MODE_NEW(dst_tile_mode);
219    unsigned src_micro_mode = G_009910_MICRO_TILE_MODE_NEW(src_tile_mode);
220    unsigned dst_tile_swizzle = dst_mode == RADEON_SURF_MODE_2D ? sdst->surface.tile_swizzle : 0;
221    unsigned src_tile_swizzle = src_mode == RADEON_SURF_MODE_2D ? ssrc->surface.tile_swizzle : 0;
222    unsigned dst_pitch = sdst->surface.u.legacy.level[dst_level].nblk_x;
223    unsigned src_pitch = ssrc->surface.u.legacy.level[src_level].nblk_x;
224    uint64_t dst_slice_pitch =
225       ((uint64_t)sdst->surface.u.legacy.level[dst_level].slice_size_dw * 4) / bpp;
226    uint64_t src_slice_pitch =
227       ((uint64_t)ssrc->surface.u.legacy.level[src_level].slice_size_dw * 4) / bpp;
228    unsigned dst_width = minify_as_blocks(sdst->buffer.b.b.width0, dst_level, sdst->surface.blk_w);
229    unsigned src_width = minify_as_blocks(ssrc->buffer.b.b.width0, src_level, ssrc->surface.blk_w);
230    unsigned dst_height = minify_as_blocks(sdst->buffer.b.b.height0, dst_level, sdst->surface.blk_h);
231    unsigned src_height = minify_as_blocks(ssrc->buffer.b.b.height0, src_level, ssrc->surface.blk_h);
232    unsigned srcx = src_box->x / ssrc->surface.blk_w;
233    unsigned srcy = src_box->y / ssrc->surface.blk_h;
234    unsigned srcz = src_box->z;
235    unsigned copy_width = DIV_ROUND_UP(src_box->width, ssrc->surface.blk_w);
236    unsigned copy_height = DIV_ROUND_UP(src_box->height, ssrc->surface.blk_h);
237    unsigned copy_depth = src_box->depth;
238 
239    assert(src_level <= src->last_level);
240    assert(dst_level <= dst->last_level);
241    assert(sdst->surface.u.legacy.level[dst_level].offset +
242              dst_slice_pitch * bpp * (dstz + src_box->depth) <=
243           sdst->buffer.buf->size);
244    assert(ssrc->surface.u.legacy.level[src_level].offset +
245              src_slice_pitch * bpp * (srcz + src_box->depth) <=
246           ssrc->buffer.buf->size);
247 
248    if (!si_prepare_for_dma_blit(sctx, sdst, dst_level, dstx, dsty, dstz, ssrc, src_level, src_box))
249       return false;
250 
251    dstx /= sdst->surface.blk_w;
252    dsty /= sdst->surface.blk_h;
253 
254    if (srcx >= (1 << 14) || srcy >= (1 << 14) || srcz >= (1 << 11) || dstx >= (1 << 14) ||
255        dsty >= (1 << 14) || dstz >= (1 << 11))
256       return false;
257 
258    dst_address |= dst_tile_swizzle << 8;
259    src_address |= src_tile_swizzle << 8;
260 
261    /* Linear -> linear sub-window copy. */
262    if (dst_mode == RADEON_SURF_MODE_LINEAR_ALIGNED && src_mode == RADEON_SURF_MODE_LINEAR_ALIGNED &&
263        /* check if everything fits into the bitfields */
264        src_pitch <= (1 << 14) && dst_pitch <= (1 << 14) && src_slice_pitch <= (1 << 28) &&
265        dst_slice_pitch <= (1 << 28) && copy_width <= (1 << 14) && copy_height <= (1 << 14) &&
266        copy_depth <= (1 << 11) &&
267        /* HW limitation - GFX7: */
268        (sctx->chip_class != GFX7 ||
269         (copy_width < (1 << 14) && copy_height < (1 << 14) && copy_depth < (1 << 11))) &&
270        /* HW limitation - some GFX7 parts: */
271        ((sctx->family != CHIP_BONAIRE && sctx->family != CHIP_KAVERI) ||
272         (srcx + copy_width != (1 << 14) && srcy + copy_height != (1 << 14)))) {
273       struct radeon_cmdbuf *cs = sctx->sdma_cs;
274 
275       si_need_dma_space(sctx, 13, &sdst->buffer, &ssrc->buffer);
276 
277       radeon_emit(
278          cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY, CIK_SDMA_COPY_SUB_OPCODE_LINEAR_SUB_WINDOW, 0) |
279                 (util_logbase2(bpp) << 29));
280       radeon_emit(cs, src_address);
281       radeon_emit(cs, src_address >> 32);
282       radeon_emit(cs, srcx | (srcy << 16));
283       radeon_emit(cs, srcz | ((src_pitch - 1) << 16));
284       radeon_emit(cs, src_slice_pitch - 1);
285       radeon_emit(cs, dst_address);
286       radeon_emit(cs, dst_address >> 32);
287       radeon_emit(cs, dstx | (dsty << 16));
288       radeon_emit(cs, dstz | ((dst_pitch - 1) << 16));
289       radeon_emit(cs, dst_slice_pitch - 1);
290       if (sctx->chip_class == GFX7) {
291          radeon_emit(cs, copy_width | (copy_height << 16));
292          radeon_emit(cs, copy_depth);
293       } else {
294          radeon_emit(cs, (copy_width - 1) | ((copy_height - 1) << 16));
295          radeon_emit(cs, (copy_depth - 1));
296       }
297       return true;
298    }
299 
300    /* Tiled <-> linear sub-window copy. */
301    if ((src_mode >= RADEON_SURF_MODE_1D) != (dst_mode >= RADEON_SURF_MODE_1D)) {
302       struct si_texture *tiled = src_mode >= RADEON_SURF_MODE_1D ? ssrc : sdst;
303       struct si_texture *linear = tiled == ssrc ? sdst : ssrc;
304       unsigned tiled_level = tiled == ssrc ? src_level : dst_level;
305       unsigned linear_level = linear == ssrc ? src_level : dst_level;
306       unsigned tiled_x = tiled == ssrc ? srcx : dstx;
307       unsigned linear_x = linear == ssrc ? srcx : dstx;
308       unsigned tiled_y = tiled == ssrc ? srcy : dsty;
309       unsigned linear_y = linear == ssrc ? srcy : dsty;
310       unsigned tiled_z = tiled == ssrc ? srcz : dstz;
311       unsigned linear_z = linear == ssrc ? srcz : dstz;
312       unsigned tiled_width = tiled == ssrc ? src_width : dst_width;
313       unsigned linear_width = linear == ssrc ? src_width : dst_width;
314       unsigned tiled_pitch = tiled == ssrc ? src_pitch : dst_pitch;
315       unsigned linear_pitch = linear == ssrc ? src_pitch : dst_pitch;
316       unsigned tiled_slice_pitch = tiled == ssrc ? src_slice_pitch : dst_slice_pitch;
317       unsigned linear_slice_pitch = linear == ssrc ? src_slice_pitch : dst_slice_pitch;
318       uint64_t tiled_address = tiled == ssrc ? src_address : dst_address;
319       uint64_t linear_address = linear == ssrc ? src_address : dst_address;
320       unsigned tiled_micro_mode = tiled == ssrc ? src_micro_mode : dst_micro_mode;
321 
322       assert(tiled_pitch % 8 == 0);
323       assert(tiled_slice_pitch % 64 == 0);
324       unsigned pitch_tile_max = tiled_pitch / 8 - 1;
325       unsigned slice_tile_max = tiled_slice_pitch / 64 - 1;
326       unsigned xalign = MAX2(1, 4 / bpp);
327       unsigned copy_width_aligned = copy_width;
328 
329       /* If the region ends at the last pixel and is unaligned, we
330        * can copy the remainder of the line that is not visible to
331        * make it aligned.
332        */
333       if (copy_width % xalign != 0 && linear_x + copy_width == linear_width &&
334           tiled_x + copy_width == tiled_width &&
335           linear_x + align(copy_width, xalign) <= linear_pitch &&
336           tiled_x + align(copy_width, xalign) <= tiled_pitch)
337          copy_width_aligned = align(copy_width, xalign);
338 
339       /* HW limitations. */
340       if ((sctx->family == CHIP_BONAIRE || sctx->family == CHIP_KAVERI) &&
341           linear_pitch - 1 == 0x3fff && bpp == 16)
342          return false;
343 
344       if (sctx->chip_class == GFX7 &&
345           (copy_width_aligned == (1 << 14) || copy_height == (1 << 14) || copy_depth == (1 << 11)))
346          return false;
347 
348       if ((sctx->family == CHIP_BONAIRE || sctx->family == CHIP_KAVERI ||
349            sctx->family == CHIP_KABINI) &&
350           (tiled_x + copy_width == (1 << 14) || tiled_y + copy_height == (1 << 14)))
351          return false;
352 
353       /* The hw can read outside of the given linear buffer bounds,
354        * or access those pages but not touch the memory in case
355        * of writes. (it still causes a VM fault)
356        *
357        * Out-of-bounds memory access or page directory access must
358        * be prevented.
359        */
360       int64_t start_linear_address, end_linear_address;
361       unsigned granularity;
362 
363       /* Deduce the size of reads from the linear surface. */
364       switch (tiled_micro_mode) {
365       case V_009910_ADDR_SURF_DISPLAY_MICRO_TILING:
366          granularity = bpp == 1 ? 64 / (8 * bpp) : 128 / (8 * bpp);
367          break;
368       case V_009910_ADDR_SURF_THIN_MICRO_TILING:
369       case V_009910_ADDR_SURF_DEPTH_MICRO_TILING:
370          if (0 /* TODO: THICK microtiling */)
371             granularity =
372                bpp == 1 ? 32 / (8 * bpp)
373                         : bpp == 2 ? 64 / (8 * bpp) : bpp <= 8 ? 128 / (8 * bpp) : 256 / (8 * bpp);
374          else
375             granularity = bpp <= 2 ? 64 / (8 * bpp) : bpp <= 8 ? 128 / (8 * bpp) : 256 / (8 * bpp);
376          break;
377       default:
378          return false;
379       }
380 
381       /* The linear reads start at tiled_x & ~(granularity - 1).
382        * If linear_x == 0 && tiled_x % granularity != 0, the hw
383        * starts reading from an address preceding linear_address!!!
384        */
385       start_linear_address =
386          linear->surface.u.legacy.level[linear_level].offset +
387          bpp * (linear_z * linear_slice_pitch + linear_y * linear_pitch + linear_x);
388       start_linear_address -= (int)(bpp * (tiled_x % granularity));
389 
390       end_linear_address =
391          linear->surface.u.legacy.level[linear_level].offset +
392          bpp * ((linear_z + copy_depth - 1) * linear_slice_pitch +
393                 (linear_y + copy_height - 1) * linear_pitch + (linear_x + copy_width));
394 
395       if ((tiled_x + copy_width) % granularity)
396          end_linear_address += granularity - (tiled_x + copy_width) % granularity;
397 
398       if (start_linear_address < 0 || end_linear_address > linear->surface.surf_size)
399          return false;
400 
401       /* Check requirements. */
402       if (tiled_address % 256 == 0 && linear_address % 4 == 0 && linear_pitch % xalign == 0 &&
403           linear_x % xalign == 0 && tiled_x % xalign == 0 && copy_width_aligned % xalign == 0 &&
404           tiled_micro_mode != V_009910_ADDR_SURF_ROTATED_MICRO_TILING &&
405           /* check if everything fits into the bitfields */
406           tiled->surface.u.legacy.tile_split <= 4096 && pitch_tile_max < (1 << 11) &&
407           slice_tile_max < (1 << 22) && linear_pitch <= (1 << 14) &&
408           linear_slice_pitch <= (1 << 28) && copy_width_aligned <= (1 << 14) &&
409           copy_height <= (1 << 14) && copy_depth <= (1 << 11)) {
410          struct radeon_cmdbuf *cs = sctx->sdma_cs;
411          uint32_t direction = linear == sdst ? 1u << 31 : 0;
412 
413          si_need_dma_space(sctx, 14, &sdst->buffer, &ssrc->buffer);
414 
415          radeon_emit(cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY,
416                                          CIK_SDMA_COPY_SUB_OPCODE_TILED_SUB_WINDOW, 0) |
417                             direction);
418          radeon_emit(cs, tiled_address);
419          radeon_emit(cs, tiled_address >> 32);
420          radeon_emit(cs, tiled_x | (tiled_y << 16));
421          radeon_emit(cs, tiled_z | (pitch_tile_max << 16));
422          radeon_emit(cs, slice_tile_max);
423          radeon_emit(cs, encode_tile_info(sctx, tiled, tiled_level, true));
424          radeon_emit(cs, linear_address);
425          radeon_emit(cs, linear_address >> 32);
426          radeon_emit(cs, linear_x | (linear_y << 16));
427          radeon_emit(cs, linear_z | ((linear_pitch - 1) << 16));
428          radeon_emit(cs, linear_slice_pitch - 1);
429          if (sctx->chip_class == GFX7) {
430             radeon_emit(cs, copy_width_aligned | (copy_height << 16));
431             radeon_emit(cs, copy_depth);
432          } else {
433             radeon_emit(cs, (copy_width_aligned - 1) | ((copy_height - 1) << 16));
434             radeon_emit(cs, (copy_depth - 1));
435          }
436          return true;
437       }
438    }
439 
440    /* Tiled -> Tiled sub-window copy. */
441    if (dst_mode >= RADEON_SURF_MODE_1D && src_mode >= RADEON_SURF_MODE_1D &&
442        /* check if these fit into the bitfields */
443        src_address % 256 == 0 && dst_address % 256 == 0 &&
444        ssrc->surface.u.legacy.tile_split <= 4096 && sdst->surface.u.legacy.tile_split <= 4096 &&
445        dstx % 8 == 0 && dsty % 8 == 0 && srcx % 8 == 0 && srcy % 8 == 0 &&
446        /* this can either be equal, or display->rotated (GFX8+ only) */
447        (src_micro_mode == dst_micro_mode ||
448         (sctx->chip_class >= GFX8 && src_micro_mode == V_009910_ADDR_SURF_DISPLAY_MICRO_TILING &&
449          dst_micro_mode == V_009910_ADDR_SURF_ROTATED_MICRO_TILING))) {
450       assert(src_pitch % 8 == 0);
451       assert(dst_pitch % 8 == 0);
452       assert(src_slice_pitch % 64 == 0);
453       assert(dst_slice_pitch % 64 == 0);
454       unsigned src_pitch_tile_max = src_pitch / 8 - 1;
455       unsigned dst_pitch_tile_max = dst_pitch / 8 - 1;
456       unsigned src_slice_tile_max = src_slice_pitch / 64 - 1;
457       unsigned dst_slice_tile_max = dst_slice_pitch / 64 - 1;
458       unsigned copy_width_aligned = copy_width;
459       unsigned copy_height_aligned = copy_height;
460 
461       /* If the region ends at the last pixel and is unaligned, we
462        * can copy the remainder of the tile that is not visible to
463        * make it aligned.
464        */
465       if (copy_width % 8 != 0 && srcx + copy_width == src_width && dstx + copy_width == dst_width)
466          copy_width_aligned = align(copy_width, 8);
467 
468       if (copy_height % 8 != 0 && srcy + copy_height == src_height &&
469           dsty + copy_height == dst_height)
470          copy_height_aligned = align(copy_height, 8);
471 
472       /* check if these fit into the bitfields */
473       if (src_pitch_tile_max < (1 << 11) && dst_pitch_tile_max < (1 << 11) &&
474           src_slice_tile_max < (1 << 22) && dst_slice_tile_max < (1 << 22) &&
475           copy_width_aligned <= (1 << 14) && copy_height_aligned <= (1 << 14) &&
476           copy_depth <= (1 << 11) && copy_width_aligned % 8 == 0 && copy_height_aligned % 8 == 0 &&
477           /* HW limitation - GFX7: */
478           (sctx->chip_class != GFX7 ||
479            (copy_width_aligned < (1 << 14) && copy_height_aligned < (1 << 14) &&
480             copy_depth < (1 << 11))) &&
481           /* HW limitation - some GFX7 parts: */
482           ((sctx->family != CHIP_BONAIRE && sctx->family != CHIP_KAVERI &&
483             sctx->family != CHIP_KABINI) ||
484            (srcx + copy_width_aligned != (1 << 14) && srcy + copy_height_aligned != (1 << 14) &&
485             dstx + copy_width != (1 << 14)))) {
486          struct radeon_cmdbuf *cs = sctx->sdma_cs;
487 
488          si_need_dma_space(sctx, 15, &sdst->buffer, &ssrc->buffer);
489 
490          radeon_emit(
491             cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY, CIK_SDMA_COPY_SUB_OPCODE_T2T_SUB_WINDOW, 0));
492          radeon_emit(cs, src_address);
493          radeon_emit(cs, src_address >> 32);
494          radeon_emit(cs, srcx | (srcy << 16));
495          radeon_emit(cs, srcz | (src_pitch_tile_max << 16));
496          radeon_emit(cs, src_slice_tile_max);
497          radeon_emit(cs, encode_tile_info(sctx, ssrc, src_level, true));
498          radeon_emit(cs, dst_address);
499          radeon_emit(cs, dst_address >> 32);
500          radeon_emit(cs, dstx | (dsty << 16));
501          radeon_emit(cs, dstz | (dst_pitch_tile_max << 16));
502          radeon_emit(cs, dst_slice_tile_max);
503          radeon_emit(cs, encode_tile_info(sctx, sdst, dst_level, false));
504          if (sctx->chip_class == GFX7) {
505             radeon_emit(cs, copy_width_aligned | (copy_height_aligned << 16));
506             radeon_emit(cs, copy_depth);
507          } else {
508             radeon_emit(cs, (copy_width_aligned - 8) | ((copy_height_aligned - 8) << 16));
509             radeon_emit(cs, (copy_depth - 1));
510          }
511          return true;
512       }
513    }
514 
515    return false;
516 }
517 
cik_sdma_copy(struct pipe_context * ctx,struct pipe_resource * dst,unsigned dst_level,unsigned dstx,unsigned dsty,unsigned dstz,struct pipe_resource * src,unsigned src_level,const struct pipe_box * src_box)518 static void cik_sdma_copy(struct pipe_context *ctx, struct pipe_resource *dst, unsigned dst_level,
519                           unsigned dstx, unsigned dsty, unsigned dstz, struct pipe_resource *src,
520                           unsigned src_level, const struct pipe_box *src_box)
521 {
522    struct si_context *sctx = (struct si_context *)ctx;
523 
524    assert(src->target != PIPE_BUFFER);
525 
526    if (!sctx->sdma_cs || src->flags & PIPE_RESOURCE_FLAG_SPARSE ||
527        dst->flags & PIPE_RESOURCE_FLAG_SPARSE)
528       goto fallback;
529 
530    /* SDMA causes corruption. See:
531     *   https://bugs.freedesktop.org/show_bug.cgi?id=110575
532     *   https://bugs.freedesktop.org/show_bug.cgi?id=110635
533     *
534     * Keep SDMA enabled on APUs.
535     */
536    if (sctx->screen->debug_flags & DBG(FORCE_SDMA) ||
537        (!sctx->screen->info.has_dedicated_vram &&
538         !(sctx->screen->debug_flags & DBG(NO_SDMA_COPY_IMAGE)))) {
539       if ((sctx->chip_class == GFX7 || sctx->chip_class == GFX8) &&
540           cik_sdma_copy_texture(sctx, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box))
541          return;
542       else if (sctx->chip_class == GFX9 && si_sdma_v4_copy_texture(sctx, dst, dst_level, dstx, dsty,
543                                                                    dstz, src, src_level, src_box))
544          return;
545    }
546 
547 fallback:
548    si_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box);
549 }
550 
cik_init_sdma_functions(struct si_context * sctx)551 void cik_init_sdma_functions(struct si_context *sctx)
552 {
553    sctx->dma_copy = cik_sdma_copy;
554 }
555