2 * Copyright 2012 Advanced Micro Devices, Inc.
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:
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
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
28 #include "ac_shader_util.h"
32 ac_get_spi_shader_z_format(bool writes_z
, bool writes_stencil
,
33 bool writes_samplemask
)
36 /* Z needs 32 bits. */
37 if (writes_samplemask
)
38 return V_028710_SPI_SHADER_32_ABGR
;
39 else if (writes_stencil
)
40 return V_028710_SPI_SHADER_32_GR
;
42 return V_028710_SPI_SHADER_32_R
;
43 } else if (writes_stencil
|| writes_samplemask
) {
44 /* Both stencil and sample mask need only 16 bits. */
45 return V_028710_SPI_SHADER_UINT16_ABGR
;
47 return V_028710_SPI_SHADER_ZERO
;
52 ac_get_cb_shader_mask(unsigned spi_shader_col_format
)
54 unsigned i
, cb_shader_mask
= 0;
56 for (i
= 0; i
< 8; i
++) {
57 switch ((spi_shader_col_format
>> (i
* 4)) & 0xf) {
58 case V_028714_SPI_SHADER_ZERO
:
60 case V_028714_SPI_SHADER_32_R
:
61 cb_shader_mask
|= 0x1 << (i
* 4);
63 case V_028714_SPI_SHADER_32_GR
:
64 cb_shader_mask
|= 0x3 << (i
* 4);
66 case V_028714_SPI_SHADER_32_AR
:
67 cb_shader_mask
|= 0x9 << (i
* 4);
69 case V_028714_SPI_SHADER_FP16_ABGR
:
70 case V_028714_SPI_SHADER_UNORM16_ABGR
:
71 case V_028714_SPI_SHADER_SNORM16_ABGR
:
72 case V_028714_SPI_SHADER_UINT16_ABGR
:
73 case V_028714_SPI_SHADER_SINT16_ABGR
:
74 case V_028714_SPI_SHADER_32_ABGR
:
75 cb_shader_mask
|= 0xf << (i
* 4);
81 return cb_shader_mask
;
85 * Calculate the appropriate setting of VGT_GS_MODE when \p shader is a
89 ac_vgt_gs_mode(unsigned gs_max_vert_out
, enum chip_class chip_class
)
93 if (gs_max_vert_out
<= 128) {
94 cut_mode
= V_028A40_GS_CUT_128
;
95 } else if (gs_max_vert_out
<= 256) {
96 cut_mode
= V_028A40_GS_CUT_256
;
97 } else if (gs_max_vert_out
<= 512) {
98 cut_mode
= V_028A40_GS_CUT_512
;
100 assert(gs_max_vert_out
<= 1024);
101 cut_mode
= V_028A40_GS_CUT_1024
;
104 return S_028A40_MODE(V_028A40_GS_SCENARIO_G
) |
105 S_028A40_CUT_MODE(cut_mode
)|
106 S_028A40_ES_WRITE_OPTIMIZE(chip_class
<= GFX8
) |
107 S_028A40_GS_WRITE_OPTIMIZE(1) |
108 S_028A40_ONCHIP(chip_class
>= GFX9
? 1 : 0);
111 /// Translate a (dfmt, nfmt) pair into a chip-appropriate combined format
112 /// value for LLVM8+ tbuffer intrinsics.
114 ac_get_tbuffer_format(enum chip_class chip_class
,
115 unsigned dfmt
, unsigned nfmt
)
117 // Some games try to access vertex buffers without a valid format.
118 // This is a game bug, but we should still handle it gracefully.
119 if (dfmt
== V_008F0C_IMG_FORMAT_INVALID
)
120 return V_008F0C_IMG_FORMAT_INVALID
;
122 if (chip_class
>= GFX10
) {
125 default: unreachable("bad dfmt");
126 case V_008F0C_BUF_DATA_FORMAT_INVALID
: format
= V_008F0C_IMG_FORMAT_INVALID
; break;
127 case V_008F0C_BUF_DATA_FORMAT_8
: format
= V_008F0C_IMG_FORMAT_8_UINT
; break;
128 case V_008F0C_BUF_DATA_FORMAT_8_8
: format
= V_008F0C_IMG_FORMAT_8_8_UINT
; break;
129 case V_008F0C_BUF_DATA_FORMAT_8_8_8_8
: format
= V_008F0C_IMG_FORMAT_8_8_8_8_UINT
; break;
130 case V_008F0C_BUF_DATA_FORMAT_16
: format
= V_008F0C_IMG_FORMAT_16_UINT
; break;
131 case V_008F0C_BUF_DATA_FORMAT_16_16
: format
= V_008F0C_IMG_FORMAT_16_16_UINT
; break;
132 case V_008F0C_BUF_DATA_FORMAT_16_16_16_16
: format
= V_008F0C_IMG_FORMAT_16_16_16_16_UINT
; break;
133 case V_008F0C_BUF_DATA_FORMAT_32
: format
= V_008F0C_IMG_FORMAT_32_UINT
; break;
134 case V_008F0C_BUF_DATA_FORMAT_32_32
: format
= V_008F0C_IMG_FORMAT_32_32_UINT
; break;
135 case V_008F0C_BUF_DATA_FORMAT_32_32_32
: format
= V_008F0C_IMG_FORMAT_32_32_32_UINT
; break;
136 case V_008F0C_BUF_DATA_FORMAT_32_32_32_32
: format
= V_008F0C_IMG_FORMAT_32_32_32_32_UINT
; break;
137 case V_008F0C_BUF_DATA_FORMAT_2_10_10_10
: format
= V_008F0C_IMG_FORMAT_2_10_10_10_UINT
; break;
140 // Use the regularity properties of the combined format enum.
142 // Note: float is incompatible with 8-bit data formats,
143 // [us]{norm,scaled} are incomparible with 32-bit data formats.
144 // [us]scaled are not writable.
146 case V_008F0C_BUF_NUM_FORMAT_UNORM
: format
-= 4; break;
147 case V_008F0C_BUF_NUM_FORMAT_SNORM
: format
-= 3; break;
148 case V_008F0C_BUF_NUM_FORMAT_USCALED
: format
-= 2; break;
149 case V_008F0C_BUF_NUM_FORMAT_SSCALED
: format
-= 1; break;
150 default: unreachable("bad nfmt");
151 case V_008F0C_BUF_NUM_FORMAT_UINT
: break;
152 case V_008F0C_BUF_NUM_FORMAT_SINT
: format
+= 1; break;
153 case V_008F0C_BUF_NUM_FORMAT_FLOAT
: format
+= 2; break;
158 return dfmt
| (nfmt
<< 4);
163 ac_get_sampler_dim(enum chip_class chip_class
, enum glsl_sampler_dim dim
,
167 case GLSL_SAMPLER_DIM_1D
:
168 if (chip_class
== GFX9
)
169 return is_array
? ac_image_2darray
: ac_image_2d
;
170 return is_array
? ac_image_1darray
: ac_image_1d
;
171 case GLSL_SAMPLER_DIM_2D
:
172 case GLSL_SAMPLER_DIM_RECT
:
173 case GLSL_SAMPLER_DIM_EXTERNAL
:
174 return is_array
? ac_image_2darray
: ac_image_2d
;
175 case GLSL_SAMPLER_DIM_3D
:
177 case GLSL_SAMPLER_DIM_CUBE
:
178 return ac_image_cube
;
179 case GLSL_SAMPLER_DIM_MS
:
180 return is_array
? ac_image_2darraymsaa
: ac_image_2dmsaa
;
181 case GLSL_SAMPLER_DIM_SUBPASS
:
182 return ac_image_2darray
;
183 case GLSL_SAMPLER_DIM_SUBPASS_MS
:
184 return ac_image_2darraymsaa
;
186 unreachable("bad sampler dim");
191 ac_get_image_dim(enum chip_class chip_class
, enum glsl_sampler_dim sdim
,
194 enum ac_image_dim dim
= ac_get_sampler_dim(chip_class
, sdim
, is_array
);
196 /* Match the resource type set in the descriptor. */
197 if (dim
== ac_image_cube
||
198 (chip_class
<= GFX8
&& dim
== ac_image_3d
))
199 dim
= ac_image_2darray
;
200 else if (sdim
== GLSL_SAMPLER_DIM_2D
&& !is_array
&& chip_class
== GFX9
) {
201 /* When a single layer of a 3D texture is bound, the shader
202 * will refer to a 2D target, but the descriptor has a 3D type.
203 * Since the HW ignores BASE_ARRAY in this case, we need to
204 * send 3 coordinates. This doesn't hurt when the underlying
214 ac_get_fs_input_vgpr_cnt(const struct ac_shader_config
*config
,
215 signed char *face_vgpr_index_ptr
,
216 signed char *ancillary_vgpr_index_ptr
)
218 unsigned num_input_vgprs
= 0;
219 signed char face_vgpr_index
= -1;
220 signed char ancillary_vgpr_index
= -1;
222 if (G_0286CC_PERSP_SAMPLE_ENA(config
->spi_ps_input_addr
))
223 num_input_vgprs
+= 2;
224 if (G_0286CC_PERSP_CENTER_ENA(config
->spi_ps_input_addr
))
225 num_input_vgprs
+= 2;
226 if (G_0286CC_PERSP_CENTROID_ENA(config
->spi_ps_input_addr
))
227 num_input_vgprs
+= 2;
228 if (G_0286CC_PERSP_PULL_MODEL_ENA(config
->spi_ps_input_addr
))
229 num_input_vgprs
+= 3;
230 if (G_0286CC_LINEAR_SAMPLE_ENA(config
->spi_ps_input_addr
))
231 num_input_vgprs
+= 2;
232 if (G_0286CC_LINEAR_CENTER_ENA(config
->spi_ps_input_addr
))
233 num_input_vgprs
+= 2;
234 if (G_0286CC_LINEAR_CENTROID_ENA(config
->spi_ps_input_addr
))
235 num_input_vgprs
+= 2;
236 if (G_0286CC_LINE_STIPPLE_TEX_ENA(config
->spi_ps_input_addr
))
237 num_input_vgprs
+= 1;
238 if (G_0286CC_POS_X_FLOAT_ENA(config
->spi_ps_input_addr
))
239 num_input_vgprs
+= 1;
240 if (G_0286CC_POS_Y_FLOAT_ENA(config
->spi_ps_input_addr
))
241 num_input_vgprs
+= 1;
242 if (G_0286CC_POS_Z_FLOAT_ENA(config
->spi_ps_input_addr
))
243 num_input_vgprs
+= 1;
244 if (G_0286CC_POS_W_FLOAT_ENA(config
->spi_ps_input_addr
))
245 num_input_vgprs
+= 1;
246 if (G_0286CC_FRONT_FACE_ENA(config
->spi_ps_input_addr
)) {
247 face_vgpr_index
= num_input_vgprs
;
248 num_input_vgprs
+= 1;
250 if (G_0286CC_ANCILLARY_ENA(config
->spi_ps_input_addr
)) {
251 ancillary_vgpr_index
= num_input_vgprs
;
252 num_input_vgprs
+= 1;
254 if (G_0286CC_SAMPLE_COVERAGE_ENA(config
->spi_ps_input_addr
))
255 num_input_vgprs
+= 1;
256 if (G_0286CC_POS_FIXED_PT_ENA(config
->spi_ps_input_addr
))
257 num_input_vgprs
+= 1;
259 if (face_vgpr_index_ptr
)
260 *face_vgpr_index_ptr
= face_vgpr_index
;
261 if (ancillary_vgpr_index_ptr
)
262 *ancillary_vgpr_index_ptr
= ancillary_vgpr_index
;
264 return num_input_vgprs
;