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1 /*
2  * Copyright © 2015 Intel Corporation
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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  */
23 
24 #include <assert.h>
25 #include <stdbool.h>
26 #include <string.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 
30 #include "anv_private.h"
31 
32 #include "common/gen_sample_positions.h"
33 #include "genxml/gen_macros.h"
34 #include "genxml/genX_pack.h"
35 
36 #include "vk_util.h"
37 
38 #if GEN_GEN == 10
39 /**
40  * From Gen10 Workarounds page in h/w specs:
41  * WaSampleOffsetIZ:
42  *    "Prior to the 3DSTATE_SAMPLE_PATTERN driver must ensure there are no
43  *     markers in the pipeline by programming a PIPE_CONTROL with stall."
44  */
45 static void
gen10_emit_wa_cs_stall_flush(struct anv_batch * batch)46 gen10_emit_wa_cs_stall_flush(struct anv_batch *batch)
47 {
48 
49    anv_batch_emit(batch, GENX(PIPE_CONTROL), pc) {
50       pc.CommandStreamerStallEnable = true;
51       pc.StallAtPixelScoreboard = true;
52    }
53 }
54 
55 /**
56  * From Gen10 Workarounds page in h/w specs:
57  * WaSampleOffsetIZ:_cs_stall_flush
58  *    "When 3DSTATE_SAMPLE_PATTERN is programmed, driver must then issue an
59  *     MI_LOAD_REGISTER_IMM command to an offset between 0x7000 and 0x7FFF(SVL)
60  *     after the command to ensure the state has been delivered prior to any
61  *     command causing a marker in the pipeline."
62  */
63 static void
gen10_emit_wa_lri_to_cache_mode_zero(struct anv_batch * batch)64 gen10_emit_wa_lri_to_cache_mode_zero(struct anv_batch *batch)
65 {
66    /* Before changing the value of CACHE_MODE_0 register, GFX pipeline must
67     * be idle; i.e., full flush is required.
68     */
69    anv_batch_emit(batch, GENX(PIPE_CONTROL), pc) {
70       pc.DepthCacheFlushEnable = true;
71       pc.DCFlushEnable = true;
72       pc.RenderTargetCacheFlushEnable = true;
73       pc.InstructionCacheInvalidateEnable = true;
74       pc.StateCacheInvalidationEnable = true;
75       pc.TextureCacheInvalidationEnable = true;
76       pc.VFCacheInvalidationEnable = true;
77       pc.ConstantCacheInvalidationEnable =true;
78    }
79 
80    /* Write to CACHE_MODE_0 (0x7000) */
81    uint32_t cache_mode_0 = 0;
82    anv_pack_struct(&cache_mode_0, GENX(CACHE_MODE_0));
83 
84    anv_batch_emit(batch, GENX(MI_LOAD_REGISTER_IMM), lri) {
85       lri.RegisterOffset = GENX(CACHE_MODE_0_num);
86       lri.DataDWord      = cache_mode_0;
87    }
88 }
89 #endif
90 
91 VkResult
genX(init_device_state)92 genX(init_device_state)(struct anv_device *device)
93 {
94    GENX(MEMORY_OBJECT_CONTROL_STATE_pack)(NULL, &device->default_mocs,
95                                           &GENX(MOCS));
96 
97    struct anv_batch batch;
98 
99    uint32_t cmds[64];
100    batch.start = batch.next = cmds;
101    batch.end = (void *) cmds + sizeof(cmds);
102 
103    anv_batch_emit(&batch, GENX(PIPELINE_SELECT), ps) {
104 #if GEN_GEN >= 9
105       ps.MaskBits = 3;
106 #endif
107       ps.PipelineSelection = _3D;
108    }
109 
110 #if GEN_GEN == 9
111    uint32_t cache_mode_1;
112    anv_pack_struct(&cache_mode_1, GENX(CACHE_MODE_1),
113                    .FloatBlendOptimizationEnable = true,
114                    .FloatBlendOptimizationEnableMask = true,
115                    .PartialResolveDisableInVC = true,
116                    .PartialResolveDisableInVCMask = true);
117 
118    anv_batch_emit(&batch, GENX(MI_LOAD_REGISTER_IMM), lri) {
119       lri.RegisterOffset = GENX(CACHE_MODE_1_num);
120       lri.DataDWord      = cache_mode_1;
121    }
122 #endif
123 
124 #if GEN_GEN == 10
125    uint32_t cache_mode_ss;
126    anv_pack_struct(&cache_mode_ss, GENX(CACHE_MODE_SS),
127                    .FloatBlendOptimizationEnable = true,
128                    .FloatBlendOptimizationEnableMask = true);
129 
130    anv_batch_emit(&batch, GENX(MI_LOAD_REGISTER_IMM), lri) {
131       lri.RegisterOffset = GENX(CACHE_MODE_SS_num);
132       lri.DataDWord      = cache_mode_ss;
133    }
134 #endif
135 
136    anv_batch_emit(&batch, GENX(3DSTATE_AA_LINE_PARAMETERS), aa);
137 
138    anv_batch_emit(&batch, GENX(3DSTATE_DRAWING_RECTANGLE), rect) {
139       rect.ClippedDrawingRectangleYMin = 0;
140       rect.ClippedDrawingRectangleXMin = 0;
141       rect.ClippedDrawingRectangleYMax = UINT16_MAX;
142       rect.ClippedDrawingRectangleXMax = UINT16_MAX;
143       rect.DrawingRectangleOriginY = 0;
144       rect.DrawingRectangleOriginX = 0;
145    }
146 
147 #if GEN_GEN >= 8
148    anv_batch_emit(&batch, GENX(3DSTATE_WM_CHROMAKEY), ck);
149 
150 #if GEN_GEN == 10
151    gen10_emit_wa_cs_stall_flush(&batch);
152 #endif
153 
154    /* See the Vulkan 1.0 spec Table 24.1 "Standard sample locations" and
155     * VkPhysicalDeviceFeatures::standardSampleLocations.
156     */
157    anv_batch_emit(&batch, GENX(3DSTATE_SAMPLE_PATTERN), sp) {
158       GEN_SAMPLE_POS_1X(sp._1xSample);
159       GEN_SAMPLE_POS_2X(sp._2xSample);
160       GEN_SAMPLE_POS_4X(sp._4xSample);
161       GEN_SAMPLE_POS_8X(sp._8xSample);
162 #if GEN_GEN >= 9
163       GEN_SAMPLE_POS_16X(sp._16xSample);
164 #endif
165    }
166 #endif
167 
168 #if GEN_GEN == 10
169    gen10_emit_wa_lri_to_cache_mode_zero(&batch);
170 #endif
171 
172    anv_batch_emit(&batch, GENX(MI_BATCH_BUFFER_END), bbe);
173 
174    assert(batch.next <= batch.end);
175 
176    return anv_device_submit_simple_batch(device, &batch);
177 }
178 
179 static uint32_t
vk_to_gen_tex_filter(VkFilter filter,bool anisotropyEnable)180 vk_to_gen_tex_filter(VkFilter filter, bool anisotropyEnable)
181 {
182    switch (filter) {
183    default:
184       assert(!"Invalid filter");
185    case VK_FILTER_NEAREST:
186       return anisotropyEnable ? MAPFILTER_ANISOTROPIC : MAPFILTER_NEAREST;
187    case VK_FILTER_LINEAR:
188       return anisotropyEnable ? MAPFILTER_ANISOTROPIC : MAPFILTER_LINEAR;
189    }
190 }
191 
192 static uint32_t
vk_to_gen_max_anisotropy(float ratio)193 vk_to_gen_max_anisotropy(float ratio)
194 {
195    return (anv_clamp_f(ratio, 2, 16) - 2) / 2;
196 }
197 
198 static const uint32_t vk_to_gen_mipmap_mode[] = {
199    [VK_SAMPLER_MIPMAP_MODE_NEAREST]          = MIPFILTER_NEAREST,
200    [VK_SAMPLER_MIPMAP_MODE_LINEAR]           = MIPFILTER_LINEAR
201 };
202 
203 static const uint32_t vk_to_gen_tex_address[] = {
204    [VK_SAMPLER_ADDRESS_MODE_REPEAT]          = TCM_WRAP,
205    [VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT] = TCM_MIRROR,
206    [VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE]   = TCM_CLAMP,
207    [VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE] = TCM_MIRROR_ONCE,
208    [VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER] = TCM_CLAMP_BORDER,
209 };
210 
211 /* Vulkan specifies the result of shadow comparisons as:
212  *     1     if   ref <op> texel,
213  *     0     otherwise.
214  *
215  * The hardware does:
216  *     0     if texel <op> ref,
217  *     1     otherwise.
218  *
219  * So, these look a bit strange because there's both a negation
220  * and swapping of the arguments involved.
221  */
222 static const uint32_t vk_to_gen_shadow_compare_op[] = {
223    [VK_COMPARE_OP_NEVER]                        = PREFILTEROPALWAYS,
224    [VK_COMPARE_OP_LESS]                         = PREFILTEROPLEQUAL,
225    [VK_COMPARE_OP_EQUAL]                        = PREFILTEROPNOTEQUAL,
226    [VK_COMPARE_OP_LESS_OR_EQUAL]                = PREFILTEROPLESS,
227    [VK_COMPARE_OP_GREATER]                      = PREFILTEROPGEQUAL,
228    [VK_COMPARE_OP_NOT_EQUAL]                    = PREFILTEROPEQUAL,
229    [VK_COMPARE_OP_GREATER_OR_EQUAL]             = PREFILTEROPGREATER,
230    [VK_COMPARE_OP_ALWAYS]                       = PREFILTEROPNEVER,
231 };
232 
genX(CreateSampler)233 VkResult genX(CreateSampler)(
234     VkDevice                                    _device,
235     const VkSamplerCreateInfo*                  pCreateInfo,
236     const VkAllocationCallbacks*                pAllocator,
237     VkSampler*                                  pSampler)
238 {
239    ANV_FROM_HANDLE(anv_device, device, _device);
240    struct anv_sampler *sampler;
241 
242    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO);
243 
244    sampler = vk_zalloc2(&device->alloc, pAllocator, sizeof(*sampler), 8,
245                         VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
246    if (!sampler)
247       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
248 
249    sampler->n_planes = 1;
250 
251    uint32_t border_color_offset = device->border_colors.offset +
252                                   pCreateInfo->borderColor * 64;
253 
254    vk_foreach_struct(ext, pCreateInfo->pNext) {
255       switch (ext->sType) {
256       case VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO_KHR: {
257          VkSamplerYcbcrConversionInfoKHR *pSamplerConversion =
258             (VkSamplerYcbcrConversionInfoKHR *) ext;
259          ANV_FROM_HANDLE(anv_ycbcr_conversion, conversion,
260                          pSamplerConversion->conversion);
261 
262          if (conversion == NULL)
263             break;
264 
265          sampler->n_planes = conversion->format->n_planes;
266          sampler->conversion = conversion;
267          break;
268       }
269       default:
270          anv_debug_ignored_stype(ext->sType);
271          break;
272       }
273    }
274 
275    for (unsigned p = 0; p < sampler->n_planes; p++) {
276       const bool plane_has_chroma =
277          sampler->conversion && sampler->conversion->format->planes[p].has_chroma;
278       const VkFilter min_filter =
279          plane_has_chroma ? sampler->conversion->chroma_filter : pCreateInfo->minFilter;
280       const VkFilter mag_filter =
281          plane_has_chroma ? sampler->conversion->chroma_filter : pCreateInfo->magFilter;
282       const bool enable_min_filter_addr_rounding = min_filter != VK_FILTER_NEAREST;
283       const bool enable_mag_filter_addr_rounding = mag_filter != VK_FILTER_NEAREST;
284       /* From Broadwell PRM, SAMPLER_STATE:
285        *   "Mip Mode Filter must be set to MIPFILTER_NONE for Planar YUV surfaces."
286        */
287       const uint32_t mip_filter_mode =
288          (sampler->conversion &&
289           isl_format_is_yuv(sampler->conversion->format->planes[0].isl_format)) ?
290          MIPFILTER_NONE : vk_to_gen_mipmap_mode[pCreateInfo->mipmapMode];
291 
292       struct GENX(SAMPLER_STATE) sampler_state = {
293          .SamplerDisable = false,
294          .TextureBorderColorMode = DX10OGL,
295 
296 #if GEN_GEN >= 8
297          .LODPreClampMode = CLAMP_MODE_OGL,
298 #else
299          .LODPreClampEnable = CLAMP_ENABLE_OGL,
300 #endif
301 
302 #if GEN_GEN == 8
303          .BaseMipLevel = 0.0,
304 #endif
305          .MipModeFilter = mip_filter_mode,
306          .MagModeFilter = vk_to_gen_tex_filter(mag_filter, pCreateInfo->anisotropyEnable),
307          .MinModeFilter = vk_to_gen_tex_filter(min_filter, pCreateInfo->anisotropyEnable),
308          .TextureLODBias = anv_clamp_f(pCreateInfo->mipLodBias, -16, 15.996),
309          .AnisotropicAlgorithm = EWAApproximation,
310          .MinLOD = anv_clamp_f(pCreateInfo->minLod, 0, 14),
311          .MaxLOD = anv_clamp_f(pCreateInfo->maxLod, 0, 14),
312          .ChromaKeyEnable = 0,
313          .ChromaKeyIndex = 0,
314          .ChromaKeyMode = 0,
315          .ShadowFunction = vk_to_gen_shadow_compare_op[pCreateInfo->compareOp],
316          .CubeSurfaceControlMode = OVERRIDE,
317 
318          .BorderColorPointer = border_color_offset,
319 
320 #if GEN_GEN >= 8
321          .LODClampMagnificationMode = MIPNONE,
322 #endif
323 
324          .MaximumAnisotropy = vk_to_gen_max_anisotropy(pCreateInfo->maxAnisotropy),
325          .RAddressMinFilterRoundingEnable = enable_min_filter_addr_rounding,
326          .RAddressMagFilterRoundingEnable = enable_mag_filter_addr_rounding,
327          .VAddressMinFilterRoundingEnable = enable_min_filter_addr_rounding,
328          .VAddressMagFilterRoundingEnable = enable_mag_filter_addr_rounding,
329          .UAddressMinFilterRoundingEnable = enable_min_filter_addr_rounding,
330          .UAddressMagFilterRoundingEnable = enable_mag_filter_addr_rounding,
331          .TrilinearFilterQuality = 0,
332          .NonnormalizedCoordinateEnable = pCreateInfo->unnormalizedCoordinates,
333          .TCXAddressControlMode = vk_to_gen_tex_address[pCreateInfo->addressModeU],
334          .TCYAddressControlMode = vk_to_gen_tex_address[pCreateInfo->addressModeV],
335          .TCZAddressControlMode = vk_to_gen_tex_address[pCreateInfo->addressModeW],
336       };
337 
338       GENX(SAMPLER_STATE_pack)(NULL, sampler->state[p], &sampler_state);
339    }
340 
341    *pSampler = anv_sampler_to_handle(sampler);
342 
343    return VK_SUCCESS;
344 }
345