File: | dev/pci/drm/i915/display/intel_bw.c |
Warning: | line 726, column 16 Array access (via field 'data_rate') results in a null pointer dereference |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
1 | // SPDX-License-Identifier: MIT | |||
2 | /* | |||
3 | * Copyright © 2019 Intel Corporation | |||
4 | */ | |||
5 | ||||
6 | #include <drm/drm_atomic_state_helper.h> | |||
7 | ||||
8 | #include "i915_drv.h" | |||
9 | #include "i915_reg.h" | |||
10 | #include "i915_utils.h" | |||
11 | #include "intel_atomic.h" | |||
12 | #include "intel_bw.h" | |||
13 | #include "intel_cdclk.h" | |||
14 | #include "intel_display_core.h" | |||
15 | #include "intel_display_types.h" | |||
16 | #include "skl_watermark.h" | |||
17 | #include "intel_mchbar_regs.h" | |||
18 | #include "intel_pcode.h" | |||
19 | ||||
20 | /* Parameters for Qclk Geyserville (QGV) */ | |||
21 | struct intel_qgv_point { | |||
22 | u16 dclk, t_rp, t_rdpre, t_rc, t_ras, t_rcd; | |||
23 | }; | |||
24 | ||||
25 | struct intel_psf_gv_point { | |||
26 | u8 clk; /* clock in multiples of 16.6666 MHz */ | |||
27 | }; | |||
28 | ||||
29 | struct intel_qgv_info { | |||
30 | struct intel_qgv_point points[I915_NUM_QGV_POINTS8]; | |||
31 | struct intel_psf_gv_point psf_points[I915_NUM_PSF_GV_POINTS3]; | |||
32 | u8 num_points; | |||
33 | u8 num_psf_points; | |||
34 | u8 t_bl; | |||
35 | u8 max_numchannels; | |||
36 | u8 channel_width; | |||
37 | u8 deinterleave; | |||
38 | }; | |||
39 | ||||
40 | static int dg1_mchbar_read_qgv_point_info(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
41 | struct intel_qgv_point *sp, | |||
42 | int point) | |||
43 | { | |||
44 | u32 dclk_ratio, dclk_reference; | |||
45 | u32 val; | |||
46 | ||||
47 | val = intel_uncore_read(&dev_priv->uncore, SA_PERF_STATUS_0_0_0_MCHBAR_PC((const i915_reg_t){ .reg = (0x140000 + 0x5918) })); | |||
48 | dclk_ratio = REG_FIELD_GET(DG1_QCLK_RATIO_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (9) - 1)) & ((~0UL) << (2))) + 0))))(((val) & (((u32)((((~0UL) >> (64 - (9) - 1)) & ((~0UL) << (2))) + 0))) ) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - (9 ) - 1)) & ((~0UL) << (2))) + 0))) - 1)))); | |||
49 | if (val & DG1_QCLK_REFERENCE((u32)((1UL << (10)) + 0))) | |||
50 | dclk_reference = 6; /* 6 * 16.666 MHz = 100 MHz */ | |||
51 | else | |||
52 | dclk_reference = 8; /* 8 * 16.666 MHz = 133 MHz */ | |||
53 | sp->dclk = DIV_ROUND_UP((16667 * dclk_ratio * dclk_reference) + 500, 1000)((((16667 * dclk_ratio * dclk_reference) + 500) + ((1000) - 1 )) / (1000)); | |||
54 | ||||
55 | val = intel_uncore_read(&dev_priv->uncore, SKL_MC_BIOS_DATA_0_0_0_MCHBAR_PCU((const i915_reg_t){ .reg = (0x140000 + 0x5e04) })); | |||
56 | if (val & DG1_GEAR_TYPE((u32)((1UL << (16)) + 0))) | |||
57 | sp->dclk *= 2; | |||
58 | ||||
59 | if (sp->dclk == 0) | |||
60 | return -EINVAL22; | |||
61 | ||||
62 | val = intel_uncore_read(&dev_priv->uncore, MCHBAR_CH0_CR_TC_PRE_0_0_0_MCHBAR((const i915_reg_t){ .reg = (0x140000 + 0x4000) })); | |||
63 | sp->t_rp = REG_FIELD_GET(DG1_DRAM_T_RP_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (6) - 1)) & ((~0UL) << (0))) + 0))))(((val) & (((u32)((((~0UL) >> (64 - (6) - 1)) & ((~0UL) << (0))) + 0))) ) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - (6 ) - 1)) & ((~0UL) << (0))) + 0))) - 1)))); | |||
64 | sp->t_rdpre = REG_FIELD_GET(DG1_DRAM_T_RDPRE_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (16) - 1)) & ((~0UL) << (11))) + 0))))(((val) & (((u32)((((~0UL ) >> (64 - (16) - 1)) & ((~0UL) << (11))) + 0 )))) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - (16) - 1)) & ((~0UL) << (11))) + 0))) - 1)))); | |||
65 | ||||
66 | val = intel_uncore_read(&dev_priv->uncore, MCHBAR_CH0_CR_TC_PRE_0_0_0_MCHBAR_HIGH((const i915_reg_t){ .reg = (0x140000 + 0x4004) })); | |||
67 | sp->t_rcd = REG_FIELD_GET(DG1_DRAM_T_RCD_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (15) - 1)) & ((~0UL) << (9))) + 0))))(((val) & (((u32)((((~0UL) >> (64 - (15) - 1)) & ((~0UL) << (9))) + 0)) )) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - ( 15) - 1)) & ((~0UL) << (9))) + 0))) - 1)))); | |||
68 | sp->t_ras = REG_FIELD_GET(DG1_DRAM_T_RAS_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (8) - 1)) & ((~0UL) << (1))) + 0))))(((val) & (((u32)((((~0UL) >> (64 - (8) - 1)) & ((~0UL) << (1))) + 0))) ) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - (8 ) - 1)) & ((~0UL) << (1))) + 0))) - 1)))); | |||
69 | ||||
70 | sp->t_rc = sp->t_rp + sp->t_ras; | |||
71 | ||||
72 | return 0; | |||
73 | } | |||
74 | ||||
75 | static int icl_pcode_read_qgv_point_info(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
76 | struct intel_qgv_point *sp, | |||
77 | int point) | |||
78 | { | |||
79 | u32 val = 0, val2 = 0; | |||
80 | u16 dclk; | |||
81 | int ret; | |||
82 | ||||
83 | ret = snb_pcode_read(&dev_priv->uncore, ICL_PCODE_MEM_SUBSYSYSTEM_INFO0xd | | |||
84 | ICL_PCODE_MEM_SS_READ_QGV_POINT_INFO(point)(((point) << 16) | (0x1 << 8)), | |||
85 | &val, &val2); | |||
86 | if (ret) | |||
87 | return ret; | |||
88 | ||||
89 | dclk = val & 0xffff; | |||
90 | sp->dclk = DIV_ROUND_UP((16667 * dclk) + (DISPLAY_VER(dev_priv) > 11 ? 500 : 0), 1000)((((16667 * dclk) + (((&(dev_priv)->__runtime)->display .ip.ver) > 11 ? 500 : 0)) + ((1000) - 1)) / (1000)); | |||
91 | sp->t_rp = (val & 0xff0000) >> 16; | |||
92 | sp->t_rcd = (val & 0xff000000) >> 24; | |||
93 | ||||
94 | sp->t_rdpre = val2 & 0xff; | |||
95 | sp->t_ras = (val2 & 0xff00) >> 8; | |||
96 | ||||
97 | sp->t_rc = sp->t_rp + sp->t_ras; | |||
98 | ||||
99 | return 0; | |||
100 | } | |||
101 | ||||
102 | static int adls_pcode_read_psf_gv_point_info(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
103 | struct intel_psf_gv_point *points) | |||
104 | { | |||
105 | u32 val = 0; | |||
106 | int ret; | |||
107 | int i; | |||
108 | ||||
109 | ret = snb_pcode_read(&dev_priv->uncore, ICL_PCODE_MEM_SUBSYSYSTEM_INFO0xd | | |||
110 | ADL_PCODE_MEM_SS_READ_PSF_GV_INFO((0) | (0x2 << 8)), &val, NULL((void *)0)); | |||
111 | if (ret) | |||
112 | return ret; | |||
113 | ||||
114 | for (i = 0; i < I915_NUM_PSF_GV_POINTS3; i++) { | |||
115 | points[i].clk = val & 0xff; | |||
116 | val >>= 8; | |||
117 | } | |||
118 | ||||
119 | return 0; | |||
120 | } | |||
121 | ||||
122 | int icl_pcode_restrict_qgv_points(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
123 | u32 points_mask) | |||
124 | { | |||
125 | int ret; | |||
126 | ||||
127 | /* bspec says to keep retrying for at least 1 ms */ | |||
128 | ret = skl_pcode_request(&dev_priv->uncore, ICL_PCODE_SAGV_DE_MEM_SS_CONFIG0xe, | |||
129 | points_mask, | |||
130 | ICL_PCODE_REP_QGV_MASK((u32)((((~0UL) >> (64 - (1) - 1)) & ((~0UL) << (0))) + 0)) | ADLS_PCODE_REP_PSF_MASK((u32)((((~0UL) >> (64 - (3) - 1)) & ((~0UL) << (2))) + 0)), | |||
131 | ICL_PCODE_REP_QGV_SAFE((u32)((((typeof(((u32)((((~0UL) >> (64 - (1) - 1)) & ((~0UL) << (0))) + 0))))(0) << (__builtin_ffsll( ((u32)((((~0UL) >> (64 - (1) - 1)) & ((~0UL) << (0))) + 0))) - 1)) & (((u32)((((~0UL) >> (64 - (1) - 1)) & ((~0UL) << (0))) + 0)))) + 0 + 0 + 0 + 0)) | ADLS_PCODE_REP_PSF_SAFE((u32)((((typeof(((u32)((((~0UL) >> (64 - (3) - 1)) & ((~0UL) << (2))) + 0))))(0) << (__builtin_ffsll( ((u32)((((~0UL) >> (64 - (3) - 1)) & ((~0UL) << (2))) + 0))) - 1)) & (((u32)((((~0UL) >> (64 - (3) - 1)) & ((~0UL) << (2))) + 0)))) + 0 + 0 + 0 + 0)), | |||
132 | 1); | |||
133 | ||||
134 | if (ret < 0) { | |||
135 | drm_err(&dev_priv->drm, "Failed to disable qgv points (%d) points: 0x%x\n", ret, points_mask)printf("drm:pid%d:%s *ERROR* " "[drm] " "*ERROR* " "Failed to disable qgv points (%d) points: 0x%x\n" , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__ , ret, points_mask ); | |||
136 | return ret; | |||
137 | } | |||
138 | ||||
139 | return 0; | |||
140 | } | |||
141 | ||||
142 | static int mtl_read_qgv_point_info(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
143 | struct intel_qgv_point *sp, int point) | |||
144 | { | |||
145 | u32 val, val2; | |||
146 | u16 dclk; | |||
147 | ||||
148 | val = intel_uncore_read(&dev_priv->uncore, | |||
149 | MTL_MEM_SS_INFO_QGV_POINT_LOW(point)((const i915_reg_t){ .reg = (0x45710 + (point) * 2) })); | |||
150 | val2 = intel_uncore_read(&dev_priv->uncore, | |||
151 | MTL_MEM_SS_INFO_QGV_POINT_HIGH(point)((const i915_reg_t){ .reg = (0x45714 + (point) * 2) })); | |||
152 | dclk = REG_FIELD_GET(MTL_DCLK_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (15) - 1)) & ((~0UL) << (0))) + 0))))(((val) & (((u32)((((~0UL) >> (64 - (15) - 1)) & ((~0UL) << (0))) + 0)) )) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - ( 15) - 1)) & ((~0UL) << (0))) + 0))) - 1)))); | |||
153 | sp->dclk = DIV_ROUND_UP((16667 * dclk), 1000)((((16667 * dclk)) + ((1000) - 1)) / (1000)); | |||
154 | sp->t_rp = REG_FIELD_GET(MTL_TRP_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (23) - 1)) & ((~0UL) << (16))) + 0))))(((val) & (((u32)((((~0UL ) >> (64 - (23) - 1)) & ((~0UL) << (16))) + 0 )))) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - (23) - 1)) & ((~0UL) << (16))) + 0))) - 1)))); | |||
155 | sp->t_rcd = REG_FIELD_GET(MTL_TRCD_MASK, val)((u32)((typeof(((u32)((((~0UL) >> (64 - (31) - 1)) & ((~0UL) << (24))) + 0))))(((val) & (((u32)((((~0UL ) >> (64 - (31) - 1)) & ((~0UL) << (24))) + 0 )))) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - (31) - 1)) & ((~0UL) << (24))) + 0))) - 1)))); | |||
156 | ||||
157 | sp->t_rdpre = REG_FIELD_GET(MTL_TRDPRE_MASK, val2)((u32)((typeof(((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0))))(((val2) & (((u32)((((~0UL ) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0)) )) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - ( 7) - 1)) & ((~0UL) << (0))) + 0))) - 1)))); | |||
158 | sp->t_ras = REG_FIELD_GET(MTL_TRAS_MASK, val2)((u32)((typeof(((u32)((((~0UL) >> (64 - (16) - 1)) & ((~0UL) << (8))) + 0))))(((val2) & (((u32)((((~0UL ) >> (64 - (16) - 1)) & ((~0UL) << (8))) + 0) ))) >> (__builtin_ffsll(((u32)((((~0UL) >> (64 - ( 16) - 1)) & ((~0UL) << (8))) + 0))) - 1)))); | |||
159 | ||||
160 | sp->t_rc = sp->t_rp + sp->t_ras; | |||
161 | ||||
162 | return 0; | |||
163 | } | |||
164 | ||||
165 | static int | |||
166 | intel_read_qgv_point_info(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
167 | struct intel_qgv_point *sp, | |||
168 | int point) | |||
169 | { | |||
170 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) >= 14) | |||
171 | return mtl_read_qgv_point_info(dev_priv, sp, point); | |||
172 | else if (IS_DG1(dev_priv)IS_PLATFORM(dev_priv, INTEL_DG1)) | |||
173 | return dg1_mchbar_read_qgv_point_info(dev_priv, sp, point); | |||
174 | else | |||
175 | return icl_pcode_read_qgv_point_info(dev_priv, sp, point); | |||
176 | } | |||
177 | ||||
178 | static int icl_get_qgv_points(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
179 | struct intel_qgv_info *qi, | |||
180 | bool_Bool is_y_tile) | |||
181 | { | |||
182 | const struct dram_info *dram_info = &dev_priv->dram_info; | |||
183 | int i, ret; | |||
184 | ||||
185 | qi->num_points = dram_info->num_qgv_points; | |||
186 | qi->num_psf_points = dram_info->num_psf_gv_points; | |||
187 | ||||
188 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) >= 14) { | |||
189 | switch (dram_info->type) { | |||
190 | case INTEL_DRAM_DDR4: | |||
191 | qi->t_bl = 4; | |||
192 | qi->max_numchannels = 2; | |||
193 | qi->channel_width = 64; | |||
194 | qi->deinterleave = 2; | |||
195 | break; | |||
196 | case INTEL_DRAM_DDR5: | |||
197 | qi->t_bl = 8; | |||
198 | qi->max_numchannels = 4; | |||
199 | qi->channel_width = 32; | |||
200 | qi->deinterleave = 2; | |||
201 | break; | |||
202 | case INTEL_DRAM_LPDDR4: | |||
203 | case INTEL_DRAM_LPDDR5: | |||
204 | qi->t_bl = 16; | |||
205 | qi->max_numchannels = 8; | |||
206 | qi->channel_width = 16; | |||
207 | qi->deinterleave = 4; | |||
208 | break; | |||
209 | default: | |||
210 | MISSING_CASE(dram_info->type)({ int __ret = !!(1); if (__ret) printf("Missing case (%s == %ld)\n" , "dram_info->type", (long)(dram_info->type)); __builtin_expect (!!(__ret), 0); }); | |||
211 | return -EINVAL22; | |||
212 | } | |||
213 | } else if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) >= 12) { | |||
214 | switch (dram_info->type) { | |||
215 | case INTEL_DRAM_DDR4: | |||
216 | qi->t_bl = is_y_tile ? 8 : 4; | |||
217 | qi->max_numchannels = 2; | |||
218 | qi->channel_width = 64; | |||
219 | qi->deinterleave = is_y_tile ? 1 : 2; | |||
220 | break; | |||
221 | case INTEL_DRAM_DDR5: | |||
222 | qi->t_bl = is_y_tile ? 16 : 8; | |||
223 | qi->max_numchannels = 4; | |||
224 | qi->channel_width = 32; | |||
225 | qi->deinterleave = is_y_tile ? 1 : 2; | |||
226 | break; | |||
227 | case INTEL_DRAM_LPDDR4: | |||
228 | if (IS_ROCKETLAKE(dev_priv)IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)) { | |||
229 | qi->t_bl = 8; | |||
230 | qi->max_numchannels = 4; | |||
231 | qi->channel_width = 32; | |||
232 | qi->deinterleave = 2; | |||
233 | break; | |||
234 | } | |||
235 | fallthroughdo {} while (0); | |||
236 | case INTEL_DRAM_LPDDR5: | |||
237 | qi->t_bl = 16; | |||
238 | qi->max_numchannels = 8; | |||
239 | qi->channel_width = 16; | |||
240 | qi->deinterleave = is_y_tile ? 2 : 4; | |||
241 | break; | |||
242 | default: | |||
243 | qi->t_bl = 16; | |||
244 | qi->max_numchannels = 1; | |||
245 | break; | |||
246 | } | |||
247 | } else if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) == 11) { | |||
248 | qi->t_bl = dev_priv->dram_info.type == INTEL_DRAM_DDR4 ? 4 : 8; | |||
249 | qi->max_numchannels = 1; | |||
250 | } | |||
251 | ||||
252 | if (drm_WARN_ON(&dev_priv->drm,({ int __ret = !!((qi->num_points > (sizeof((qi->points )) / sizeof((qi->points)[0])))); if (__ret) printf("%s %s: " "%s", dev_driver_string(((&dev_priv->drm))->dev), "" , "drm_WARN_ON(" "qi->num_points > (sizeof((qi->points)) / sizeof((qi->points)[0]))" ")"); __builtin_expect(!!(__ret), 0); }) | |||
253 | qi->num_points > ARRAY_SIZE(qi->points))({ int __ret = !!((qi->num_points > (sizeof((qi->points )) / sizeof((qi->points)[0])))); if (__ret) printf("%s %s: " "%s", dev_driver_string(((&dev_priv->drm))->dev), "" , "drm_WARN_ON(" "qi->num_points > (sizeof((qi->points)) / sizeof((qi->points)[0]))" ")"); __builtin_expect(!!(__ret), 0); })) | |||
254 | qi->num_points = ARRAY_SIZE(qi->points)(sizeof((qi->points)) / sizeof((qi->points)[0])); | |||
255 | ||||
256 | for (i = 0; i < qi->num_points; i++) { | |||
257 | struct intel_qgv_point *sp = &qi->points[i]; | |||
258 | ||||
259 | ret = intel_read_qgv_point_info(dev_priv, sp, i); | |||
260 | if (ret) | |||
261 | return ret; | |||
262 | ||||
263 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "QGV %d: DCLK=%d tRP=%d tRDPRE=%d tRAS=%d tRCD=%d tRC=%d\n" , i, sp->dclk, sp->t_rp, sp->t_rdpre, sp->t_ras, sp ->t_rcd, sp->t_rc) | |||
264 | "QGV %d: DCLK=%d tRP=%d tRDPRE=%d tRAS=%d tRCD=%d tRC=%d\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "QGV %d: DCLK=%d tRP=%d tRDPRE=%d tRAS=%d tRCD=%d tRC=%d\n" , i, sp->dclk, sp->t_rp, sp->t_rdpre, sp->t_ras, sp ->t_rcd, sp->t_rc) | |||
265 | i, sp->dclk, sp->t_rp, sp->t_rdpre, sp->t_ras,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "QGV %d: DCLK=%d tRP=%d tRDPRE=%d tRAS=%d tRCD=%d tRC=%d\n" , i, sp->dclk, sp->t_rp, sp->t_rdpre, sp->t_ras, sp ->t_rcd, sp->t_rc) | |||
266 | sp->t_rcd, sp->t_rc)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "QGV %d: DCLK=%d tRP=%d tRDPRE=%d tRAS=%d tRCD=%d tRC=%d\n" , i, sp->dclk, sp->t_rp, sp->t_rdpre, sp->t_ras, sp ->t_rcd, sp->t_rc); | |||
267 | } | |||
268 | ||||
269 | if (qi->num_psf_points > 0) { | |||
270 | ret = adls_pcode_read_psf_gv_point_info(dev_priv, qi->psf_points); | |||
271 | if (ret) { | |||
272 | drm_err(&dev_priv->drm, "Failed to read PSF point data; PSF points will not be considered in bandwidth calculations.\n")printf("drm:pid%d:%s *ERROR* " "[drm] " "*ERROR* " "Failed to read PSF point data; PSF points will not be considered in bandwidth calculations.\n" , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__); | |||
273 | qi->num_psf_points = 0; | |||
274 | } | |||
275 | ||||
276 | for (i = 0; i < qi->num_psf_points; i++) | |||
277 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "PSF GV %d: CLK=%d \n" , i, qi->psf_points[i].clk) | |||
278 | "PSF GV %d: CLK=%d \n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "PSF GV %d: CLK=%d \n" , i, qi->psf_points[i].clk) | |||
279 | i, qi->psf_points[i].clk)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "PSF GV %d: CLK=%d \n" , i, qi->psf_points[i].clk); | |||
280 | } | |||
281 | ||||
282 | return 0; | |||
283 | } | |||
284 | ||||
285 | static int adl_calc_psf_bw(int clk) | |||
286 | { | |||
287 | /* | |||
288 | * clk is multiples of 16.666MHz (100/6) | |||
289 | * According to BSpec PSF GV bandwidth is | |||
290 | * calculated as BW = 64 * clk * 16.666Mhz | |||
291 | */ | |||
292 | return DIV_ROUND_CLOSEST(64 * clk * 100, 6)(((64 * clk * 100) + ((6) / 2)) / (6)); | |||
293 | } | |||
294 | ||||
295 | static int icl_sagv_max_dclk(const struct intel_qgv_info *qi) | |||
296 | { | |||
297 | u16 dclk = 0; | |||
298 | int i; | |||
299 | ||||
300 | for (i = 0; i < qi->num_points; i++) | |||
301 | dclk = max(dclk, qi->points[i].dclk)(((dclk)>(qi->points[i].dclk))?(dclk):(qi->points[i] .dclk)); | |||
302 | ||||
303 | return dclk; | |||
304 | } | |||
305 | ||||
306 | struct intel_sa_info { | |||
307 | u16 displayrtids; | |||
308 | u8 deburst, deprogbwlimit, derating; | |||
309 | }; | |||
310 | ||||
311 | static const struct intel_sa_info icl_sa_info = { | |||
312 | .deburst = 8, | |||
313 | .deprogbwlimit = 25, /* GB/s */ | |||
314 | .displayrtids = 128, | |||
315 | .derating = 10, | |||
316 | }; | |||
317 | ||||
318 | static const struct intel_sa_info tgl_sa_info = { | |||
319 | .deburst = 16, | |||
320 | .deprogbwlimit = 34, /* GB/s */ | |||
321 | .displayrtids = 256, | |||
322 | .derating = 10, | |||
323 | }; | |||
324 | ||||
325 | static const struct intel_sa_info rkl_sa_info = { | |||
326 | .deburst = 8, | |||
327 | .deprogbwlimit = 20, /* GB/s */ | |||
328 | .displayrtids = 128, | |||
329 | .derating = 10, | |||
330 | }; | |||
331 | ||||
332 | static const struct intel_sa_info adls_sa_info = { | |||
333 | .deburst = 16, | |||
334 | .deprogbwlimit = 38, /* GB/s */ | |||
335 | .displayrtids = 256, | |||
336 | .derating = 10, | |||
337 | }; | |||
338 | ||||
339 | static const struct intel_sa_info adlp_sa_info = { | |||
340 | .deburst = 16, | |||
341 | .deprogbwlimit = 38, /* GB/s */ | |||
342 | .displayrtids = 256, | |||
343 | .derating = 20, | |||
344 | }; | |||
345 | ||||
346 | static const struct intel_sa_info mtl_sa_info = { | |||
347 | .deburst = 32, | |||
348 | .deprogbwlimit = 38, /* GB/s */ | |||
349 | .displayrtids = 256, | |||
350 | .derating = 20, | |||
351 | }; | |||
352 | ||||
353 | static int icl_get_bw_info(struct drm_i915_privateinteldrm_softc *dev_priv, const struct intel_sa_info *sa) | |||
354 | { | |||
355 | struct intel_qgv_info qi = {}; | |||
356 | bool_Bool is_y_tile = true1; /* assume y tile may be used */ | |||
357 | int num_channels = max_t(u8, 1, dev_priv->dram_info.num_channels)({ u8 __max_a = (1); u8 __max_b = (dev_priv->dram_info.num_channels ); __max_a > __max_b ? __max_a : __max_b; }); | |||
358 | int ipqdepth, ipqdepthpch = 16; | |||
359 | int dclk_max; | |||
360 | int maxdebw; | |||
361 | int num_groups = ARRAY_SIZE(dev_priv->display.bw.max)(sizeof((dev_priv->display.bw.max)) / sizeof((dev_priv-> display.bw.max)[0])); | |||
362 | int i, ret; | |||
363 | ||||
364 | ret = icl_get_qgv_points(dev_priv, &qi, is_y_tile); | |||
365 | if (ret) { | |||
366 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "Failed to get memory subsystem information, ignoring bandwidth limits" ) | |||
367 | "Failed to get memory subsystem information, ignoring bandwidth limits")__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "Failed to get memory subsystem information, ignoring bandwidth limits" ); | |||
368 | return ret; | |||
369 | } | |||
370 | ||||
371 | dclk_max = icl_sagv_max_dclk(&qi); | |||
372 | maxdebw = min(sa->deprogbwlimit * 1000, dclk_max * 16 * 6 / 10)(((sa->deprogbwlimit * 1000)<(dclk_max * 16 * 6 / 10))? (sa->deprogbwlimit * 1000):(dclk_max * 16 * 6 / 10)); | |||
373 | ipqdepth = min(ipqdepthpch, sa->displayrtids / num_channels)(((ipqdepthpch)<(sa->displayrtids / num_channels))?(ipqdepthpch ):(sa->displayrtids / num_channels)); | |||
374 | qi.deinterleave = DIV_ROUND_UP(num_channels, is_y_tile ? 4 : 2)(((num_channels) + ((is_y_tile ? 4 : 2) - 1)) / (is_y_tile ? 4 : 2)); | |||
375 | ||||
376 | for (i = 0; i < num_groups; i++) { | |||
377 | struct intel_bw_info *bi = &dev_priv->display.bw.max[i]; | |||
378 | int clpchgroup; | |||
379 | int j; | |||
380 | ||||
381 | clpchgroup = (sa->deburst * qi.deinterleave / num_channels) << i; | |||
382 | bi->num_planes = (ipqdepth - clpchgroup) / clpchgroup + 1; | |||
383 | ||||
384 | bi->num_qgv_points = qi.num_points; | |||
385 | bi->num_psf_gv_points = qi.num_psf_points; | |||
386 | ||||
387 | for (j = 0; j < qi.num_points; j++) { | |||
388 | const struct intel_qgv_point *sp = &qi.points[j]; | |||
389 | int ct, bw; | |||
390 | ||||
391 | /* | |||
392 | * Max row cycle time | |||
393 | * | |||
394 | * FIXME what is the logic behind the | |||
395 | * assumed burst length? | |||
396 | */ | |||
397 | ct = max_t(int, sp->t_rc, sp->t_rp + sp->t_rcd +({ int __max_a = (sp->t_rc); int __max_b = (sp->t_rp + sp ->t_rcd + (clpchgroup - 1) * qi.t_bl + sp->t_rdpre); __max_a > __max_b ? __max_a : __max_b; }) | |||
398 | (clpchgroup - 1) * qi.t_bl + sp->t_rdpre)({ int __max_a = (sp->t_rc); int __max_b = (sp->t_rp + sp ->t_rcd + (clpchgroup - 1) * qi.t_bl + sp->t_rdpre); __max_a > __max_b ? __max_a : __max_b; }); | |||
399 | bw = DIV_ROUND_UP(sp->dclk * clpchgroup * 32 * num_channels, ct)(((sp->dclk * clpchgroup * 32 * num_channels) + ((ct) - 1) ) / (ct)); | |||
400 | ||||
401 | bi->deratedbw[j] = min(maxdebw,(((maxdebw)<(bw * (100 - sa->derating) / 100))?(maxdebw ):(bw * (100 - sa->derating) / 100)) | |||
402 | bw * (100 - sa->derating) / 100)(((maxdebw)<(bw * (100 - sa->derating) / 100))?(maxdebw ):(bw * (100 - sa->derating) / 100)); | |||
403 | ||||
404 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / QGV %d: num_planes=%d deratedbw=%u\n" , i, j, bi->num_planes, bi->deratedbw[j]) | |||
405 | "BW%d / QGV %d: num_planes=%d deratedbw=%u\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / QGV %d: num_planes=%d deratedbw=%u\n" , i, j, bi->num_planes, bi->deratedbw[j]) | |||
406 | i, j, bi->num_planes, bi->deratedbw[j])__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / QGV %d: num_planes=%d deratedbw=%u\n" , i, j, bi->num_planes, bi->deratedbw[j]); | |||
407 | } | |||
408 | } | |||
409 | /* | |||
410 | * In case if SAGV is disabled in BIOS, we always get 1 | |||
411 | * SAGV point, but we can't send PCode commands to restrict it | |||
412 | * as it will fail and pointless anyway. | |||
413 | */ | |||
414 | if (qi.num_points == 1) | |||
415 | dev_priv->display.sagv.status = I915_SAGV_NOT_CONTROLLED; | |||
416 | else | |||
417 | dev_priv->display.sagv.status = I915_SAGV_ENABLED; | |||
418 | ||||
419 | return 0; | |||
420 | } | |||
421 | ||||
422 | static int tgl_get_bw_info(struct drm_i915_privateinteldrm_softc *dev_priv, const struct intel_sa_info *sa) | |||
423 | { | |||
424 | struct intel_qgv_info qi = {}; | |||
425 | const struct dram_info *dram_info = &dev_priv->dram_info; | |||
426 | bool_Bool is_y_tile = true1; /* assume y tile may be used */ | |||
427 | int num_channels = max_t(u8, 1, dev_priv->dram_info.num_channels)({ u8 __max_a = (1); u8 __max_b = (dev_priv->dram_info.num_channels ); __max_a > __max_b ? __max_a : __max_b; }); | |||
428 | int ipqdepth, ipqdepthpch = 16; | |||
429 | int dclk_max; | |||
430 | int maxdebw, peakbw; | |||
431 | int clperchgroup; | |||
432 | int num_groups = ARRAY_SIZE(dev_priv->display.bw.max)(sizeof((dev_priv->display.bw.max)) / sizeof((dev_priv-> display.bw.max)[0])); | |||
433 | int i, ret; | |||
434 | ||||
435 | ret = icl_get_qgv_points(dev_priv, &qi, is_y_tile); | |||
436 | if (ret) { | |||
437 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "Failed to get memory subsystem information, ignoring bandwidth limits" ) | |||
438 | "Failed to get memory subsystem information, ignoring bandwidth limits")__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "Failed to get memory subsystem information, ignoring bandwidth limits" ); | |||
439 | return ret; | |||
440 | } | |||
441 | ||||
442 | if (dram_info->type == INTEL_DRAM_LPDDR4 || dram_info->type == INTEL_DRAM_LPDDR5) | |||
443 | num_channels *= 2; | |||
444 | ||||
445 | qi.deinterleave = qi.deinterleave ? : DIV_ROUND_UP(num_channels, is_y_tile ? 4 : 2)(((num_channels) + ((is_y_tile ? 4 : 2) - 1)) / (is_y_tile ? 4 : 2)); | |||
446 | ||||
447 | if (num_channels < qi.max_numchannels && DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) >= 12) | |||
448 | qi.deinterleave = max(DIV_ROUND_UP(qi.deinterleave, 2), 1)((((((qi.deinterleave) + ((2) - 1)) / (2)))>(1))?((((qi.deinterleave ) + ((2) - 1)) / (2))):(1)); | |||
449 | ||||
450 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) > 11 && num_channels > qi.max_numchannels) | |||
451 | drm_warn(&dev_priv->drm, "Number of channels exceeds max number of channels.")printf("drm:pid%d:%s *WARNING* " "[drm] " "Number of channels exceeds max number of channels." , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__); | |||
452 | if (qi.max_numchannels != 0) | |||
453 | num_channels = min_t(u8, num_channels, qi.max_numchannels)({ u8 __min_a = (num_channels); u8 __min_b = (qi.max_numchannels ); __min_a < __min_b ? __min_a : __min_b; }); | |||
454 | ||||
455 | dclk_max = icl_sagv_max_dclk(&qi); | |||
456 | ||||
457 | peakbw = num_channels * DIV_ROUND_UP(qi.channel_width, 8)(((qi.channel_width) + ((8) - 1)) / (8)) * dclk_max; | |||
458 | maxdebw = min(sa->deprogbwlimit * 1000, peakbw * 6 / 10)(((sa->deprogbwlimit * 1000)<(peakbw * 6 / 10))?(sa-> deprogbwlimit * 1000):(peakbw * 6 / 10)); /* 60% */ | |||
459 | ||||
460 | ipqdepth = min(ipqdepthpch, sa->displayrtids / num_channels)(((ipqdepthpch)<(sa->displayrtids / num_channels))?(ipqdepthpch ):(sa->displayrtids / num_channels)); | |||
461 | /* | |||
462 | * clperchgroup = 4kpagespermempage * clperchperblock, | |||
463 | * clperchperblock = 8 / num_channels * interleave | |||
464 | */ | |||
465 | clperchgroup = 4 * DIV_ROUND_UP(8, num_channels)(((8) + ((num_channels) - 1)) / (num_channels)) * qi.deinterleave; | |||
466 | ||||
467 | for (i = 0; i < num_groups; i++) { | |||
468 | struct intel_bw_info *bi = &dev_priv->display.bw.max[i]; | |||
469 | struct intel_bw_info *bi_next; | |||
470 | int clpchgroup; | |||
471 | int j; | |||
472 | ||||
473 | clpchgroup = (sa->deburst * qi.deinterleave / num_channels) << i; | |||
474 | ||||
475 | if (i < num_groups - 1) { | |||
476 | bi_next = &dev_priv->display.bw.max[i + 1]; | |||
477 | ||||
478 | if (clpchgroup < clperchgroup) | |||
479 | bi_next->num_planes = (ipqdepth - clpchgroup) / | |||
480 | clpchgroup + 1; | |||
481 | else | |||
482 | bi_next->num_planes = 0; | |||
483 | } | |||
484 | ||||
485 | bi->num_qgv_points = qi.num_points; | |||
486 | bi->num_psf_gv_points = qi.num_psf_points; | |||
487 | ||||
488 | for (j = 0; j < qi.num_points; j++) { | |||
489 | const struct intel_qgv_point *sp = &qi.points[j]; | |||
490 | int ct, bw; | |||
491 | ||||
492 | /* | |||
493 | * Max row cycle time | |||
494 | * | |||
495 | * FIXME what is the logic behind the | |||
496 | * assumed burst length? | |||
497 | */ | |||
498 | ct = max_t(int, sp->t_rc, sp->t_rp + sp->t_rcd +({ int __max_a = (sp->t_rc); int __max_b = (sp->t_rp + sp ->t_rcd + (clpchgroup - 1) * qi.t_bl + sp->t_rdpre); __max_a > __max_b ? __max_a : __max_b; }) | |||
499 | (clpchgroup - 1) * qi.t_bl + sp->t_rdpre)({ int __max_a = (sp->t_rc); int __max_b = (sp->t_rp + sp ->t_rcd + (clpchgroup - 1) * qi.t_bl + sp->t_rdpre); __max_a > __max_b ? __max_a : __max_b; }); | |||
500 | bw = DIV_ROUND_UP(sp->dclk * clpchgroup * 32 * num_channels, ct)(((sp->dclk * clpchgroup * 32 * num_channels) + ((ct) - 1) ) / (ct)); | |||
501 | ||||
502 | bi->deratedbw[j] = min(maxdebw,(((maxdebw)<(bw * (100 - sa->derating) / 100))?(maxdebw ):(bw * (100 - sa->derating) / 100)) | |||
503 | bw * (100 - sa->derating) / 100)(((maxdebw)<(bw * (100 - sa->derating) / 100))?(maxdebw ):(bw * (100 - sa->derating) / 100)); | |||
504 | ||||
505 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / QGV %d: num_planes=%d deratedbw=%u\n" , i, j, bi->num_planes, bi->deratedbw[j]) | |||
506 | "BW%d / QGV %d: num_planes=%d deratedbw=%u\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / QGV %d: num_planes=%d deratedbw=%u\n" , i, j, bi->num_planes, bi->deratedbw[j]) | |||
507 | i, j, bi->num_planes, bi->deratedbw[j])__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / QGV %d: num_planes=%d deratedbw=%u\n" , i, j, bi->num_planes, bi->deratedbw[j]); | |||
508 | } | |||
509 | ||||
510 | for (j = 0; j < qi.num_psf_points; j++) { | |||
511 | const struct intel_psf_gv_point *sp = &qi.psf_points[j]; | |||
512 | ||||
513 | bi->psf_bw[j] = adl_calc_psf_bw(sp->clk); | |||
514 | ||||
515 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / PSF GV %d: num_planes=%d bw=%u\n" , i, j, bi->num_planes, bi->psf_bw[j]) | |||
516 | "BW%d / PSF GV %d: num_planes=%d bw=%u\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / PSF GV %d: num_planes=%d bw=%u\n" , i, j, bi->num_planes, bi->psf_bw[j]) | |||
517 | i, j, bi->num_planes, bi->psf_bw[j])__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BW%d / PSF GV %d: num_planes=%d bw=%u\n" , i, j, bi->num_planes, bi->psf_bw[j]); | |||
518 | } | |||
519 | } | |||
520 | ||||
521 | /* | |||
522 | * In case if SAGV is disabled in BIOS, we always get 1 | |||
523 | * SAGV point, but we can't send PCode commands to restrict it | |||
524 | * as it will fail and pointless anyway. | |||
525 | */ | |||
526 | if (qi.num_points == 1) | |||
527 | dev_priv->display.sagv.status = I915_SAGV_NOT_CONTROLLED; | |||
528 | else | |||
529 | dev_priv->display.sagv.status = I915_SAGV_ENABLED; | |||
530 | ||||
531 | return 0; | |||
532 | } | |||
533 | ||||
534 | static void dg2_get_bw_info(struct drm_i915_privateinteldrm_softc *i915) | |||
535 | { | |||
536 | unsigned int deratedbw = IS_DG2_G11(i915)IS_SUBPLATFORM(i915, INTEL_DG2, 1) ? 38000 : 50000; | |||
537 | int num_groups = ARRAY_SIZE(i915->display.bw.max)(sizeof((i915->display.bw.max)) / sizeof((i915->display .bw.max)[0])); | |||
538 | int i; | |||
539 | ||||
540 | /* | |||
541 | * DG2 doesn't have SAGV or QGV points, just a constant max bandwidth | |||
542 | * that doesn't depend on the number of planes enabled. So fill all the | |||
543 | * plane group with constant bw information for uniformity with other | |||
544 | * platforms. DG2-G10 platforms have a constant 50 GB/s bandwidth, | |||
545 | * whereas DG2-G11 platforms have 38 GB/s. | |||
546 | */ | |||
547 | for (i = 0; i < num_groups; i++) { | |||
548 | struct intel_bw_info *bi = &i915->display.bw.max[i]; | |||
549 | ||||
550 | bi->num_planes = 1; | |||
551 | /* Need only one dummy QGV point per group */ | |||
552 | bi->num_qgv_points = 1; | |||
553 | bi->deratedbw[0] = deratedbw; | |||
554 | } | |||
555 | ||||
556 | i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED; | |||
557 | } | |||
558 | ||||
559 | static unsigned int icl_max_bw(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
560 | int num_planes, int qgv_point) | |||
561 | { | |||
562 | int i; | |||
563 | ||||
564 | /* | |||
565 | * Let's return max bw for 0 planes | |||
566 | */ | |||
567 | num_planes = max(1, num_planes)(((1)>(num_planes))?(1):(num_planes)); | |||
568 | ||||
569 | for (i = 0; i < ARRAY_SIZE(dev_priv->display.bw.max)(sizeof((dev_priv->display.bw.max)) / sizeof((dev_priv-> display.bw.max)[0])); i++) { | |||
570 | const struct intel_bw_info *bi = | |||
571 | &dev_priv->display.bw.max[i]; | |||
572 | ||||
573 | /* | |||
574 | * Pcode will not expose all QGV points when | |||
575 | * SAGV is forced to off/min/med/max. | |||
576 | */ | |||
577 | if (qgv_point >= bi->num_qgv_points) | |||
578 | return UINT_MAX0xffffffffU; | |||
579 | ||||
580 | if (num_planes >= bi->num_planes) | |||
581 | return bi->deratedbw[qgv_point]; | |||
582 | } | |||
583 | ||||
584 | return 0; | |||
585 | } | |||
586 | ||||
587 | static unsigned int tgl_max_bw(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
588 | int num_planes, int qgv_point) | |||
589 | { | |||
590 | int i; | |||
591 | ||||
592 | /* | |||
593 | * Let's return max bw for 0 planes | |||
594 | */ | |||
595 | num_planes = max(1, num_planes)(((1)>(num_planes))?(1):(num_planes)); | |||
596 | ||||
597 | for (i = ARRAY_SIZE(dev_priv->display.bw.max)(sizeof((dev_priv->display.bw.max)) / sizeof((dev_priv-> display.bw.max)[0])) - 1; i >= 0; i--) { | |||
598 | const struct intel_bw_info *bi = | |||
599 | &dev_priv->display.bw.max[i]; | |||
600 | ||||
601 | /* | |||
602 | * Pcode will not expose all QGV points when | |||
603 | * SAGV is forced to off/min/med/max. | |||
604 | */ | |||
605 | if (qgv_point >= bi->num_qgv_points) | |||
606 | return UINT_MAX0xffffffffU; | |||
607 | ||||
608 | if (num_planes <= bi->num_planes) | |||
609 | return bi->deratedbw[qgv_point]; | |||
610 | } | |||
611 | ||||
612 | return dev_priv->display.bw.max[0].deratedbw[qgv_point]; | |||
613 | } | |||
614 | ||||
615 | static unsigned int adl_psf_bw(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
616 | int psf_gv_point) | |||
617 | { | |||
618 | const struct intel_bw_info *bi = | |||
619 | &dev_priv->display.bw.max[0]; | |||
620 | ||||
621 | return bi->psf_bw[psf_gv_point]; | |||
622 | } | |||
623 | ||||
624 | void intel_bw_init_hw(struct drm_i915_privateinteldrm_softc *dev_priv) | |||
625 | { | |||
626 | if (!HAS_DISPLAY(dev_priv)((&(dev_priv)->__runtime)->pipe_mask != 0)) | |||
627 | return; | |||
628 | ||||
629 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) >= 14) | |||
630 | tgl_get_bw_info(dev_priv, &mtl_sa_info); | |||
631 | else if (IS_DG2(dev_priv)IS_PLATFORM(dev_priv, INTEL_DG2)) | |||
632 | dg2_get_bw_info(dev_priv); | |||
633 | else if (IS_ALDERLAKE_P(dev_priv)IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P)) | |||
634 | tgl_get_bw_info(dev_priv, &adlp_sa_info); | |||
635 | else if (IS_ALDERLAKE_S(dev_priv)IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)) | |||
636 | tgl_get_bw_info(dev_priv, &adls_sa_info); | |||
637 | else if (IS_ROCKETLAKE(dev_priv)IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)) | |||
638 | tgl_get_bw_info(dev_priv, &rkl_sa_info); | |||
639 | else if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) == 12) | |||
640 | tgl_get_bw_info(dev_priv, &tgl_sa_info); | |||
641 | else if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) == 11) | |||
642 | icl_get_bw_info(dev_priv, &icl_sa_info); | |||
643 | } | |||
644 | ||||
645 | static unsigned int intel_bw_crtc_num_active_planes(const struct intel_crtc_state *crtc_state) | |||
646 | { | |||
647 | /* | |||
648 | * We assume cursors are small enough | |||
649 | * to not not cause bandwidth problems. | |||
650 | */ | |||
651 | return hweight8(crtc_state->active_planes & ~BIT(PLANE_CURSOR)(1UL << (PLANE_CURSOR))); | |||
652 | } | |||
653 | ||||
654 | static unsigned int intel_bw_crtc_data_rate(const struct intel_crtc_state *crtc_state) | |||
655 | { | |||
656 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc)({ const __typeof( ((struct intel_crtc *)0)->base ) *__mptr = (crtc_state->uapi.crtc); (struct intel_crtc *)( (char * )__mptr - __builtin_offsetof(struct intel_crtc, base) );}); | |||
657 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(crtc->base.dev); | |||
658 | unsigned int data_rate = 0; | |||
659 | enum plane_id plane_id; | |||
660 | ||||
661 | for_each_plane_id_on_crtc(crtc, plane_id)for ((plane_id) = PLANE_PRIMARY; (plane_id) < I915_MAX_PLANES ; (plane_id)++) if (!((crtc)->plane_ids_mask & (1UL << (plane_id)))) {} else { | |||
662 | /* | |||
663 | * We assume cursors are small enough | |||
664 | * to not not cause bandwidth problems. | |||
665 | */ | |||
666 | if (plane_id == PLANE_CURSOR) | |||
667 | continue; | |||
668 | ||||
669 | data_rate += crtc_state->data_rate[plane_id]; | |||
670 | ||||
671 | if (DISPLAY_VER(i915)((&(i915)->__runtime)->display.ip.ver) < 11) | |||
672 | data_rate += crtc_state->data_rate_y[plane_id]; | |||
673 | } | |||
674 | ||||
675 | return data_rate; | |||
676 | } | |||
677 | ||||
678 | /* "Maximum Pipe Read Bandwidth" */ | |||
679 | static int intel_bw_crtc_min_cdclk(const struct intel_crtc_state *crtc_state) | |||
680 | { | |||
681 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc)({ const __typeof( ((struct intel_crtc *)0)->base ) *__mptr = (crtc_state->uapi.crtc); (struct intel_crtc *)( (char * )__mptr - __builtin_offsetof(struct intel_crtc, base) );}); | |||
682 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(crtc->base.dev); | |||
683 | ||||
684 | if (DISPLAY_VER(i915)((&(i915)->__runtime)->display.ip.ver) < 12) | |||
685 | return 0; | |||
686 | ||||
687 | return DIV_ROUND_UP_ULL(mul_u32_u32(intel_bw_crtc_data_rate(crtc_state), 10), 512)(((mul_u32_u32(intel_bw_crtc_data_rate(crtc_state), 10)) + (( 512) - 1)) / (512)); | |||
688 | } | |||
689 | ||||
690 | void intel_bw_crtc_update(struct intel_bw_state *bw_state, | |||
691 | const struct intel_crtc_state *crtc_state) | |||
692 | { | |||
693 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc)({ const __typeof( ((struct intel_crtc *)0)->base ) *__mptr = (crtc_state->uapi.crtc); (struct intel_crtc *)( (char * )__mptr - __builtin_offsetof(struct intel_crtc, base) );}); | |||
694 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(crtc->base.dev); | |||
695 | ||||
696 | bw_state->data_rate[crtc->pipe] = | |||
697 | intel_bw_crtc_data_rate(crtc_state); | |||
698 | bw_state->num_active_planes[crtc->pipe] = | |||
699 | intel_bw_crtc_num_active_planes(crtc_state); | |||
700 | ||||
701 | drm_dbg_kms(&i915->drm, "pipe %c data rate %u num active planes %u\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "pipe %c data rate %u num active planes %u\n" , ((crtc->pipe) + 'A'), bw_state->data_rate[crtc->pipe ], bw_state->num_active_planes[crtc->pipe]) | |||
702 | pipe_name(crtc->pipe),__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "pipe %c data rate %u num active planes %u\n" , ((crtc->pipe) + 'A'), bw_state->data_rate[crtc->pipe ], bw_state->num_active_planes[crtc->pipe]) | |||
703 | bw_state->data_rate[crtc->pipe],__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "pipe %c data rate %u num active planes %u\n" , ((crtc->pipe) + 'A'), bw_state->data_rate[crtc->pipe ], bw_state->num_active_planes[crtc->pipe]) | |||
704 | bw_state->num_active_planes[crtc->pipe])__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "pipe %c data rate %u num active planes %u\n" , ((crtc->pipe) + 'A'), bw_state->data_rate[crtc->pipe ], bw_state->num_active_planes[crtc->pipe]); | |||
705 | } | |||
706 | ||||
707 | static unsigned int intel_bw_num_active_planes(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
708 | const struct intel_bw_state *bw_state) | |||
709 | { | |||
710 | unsigned int num_active_planes = 0; | |||
711 | enum pipe pipe; | |||
712 | ||||
713 | for_each_pipe(dev_priv, pipe)for ((pipe) = 0; (pipe) < I915_MAX_PIPES; (pipe)++) if (!( (&(dev_priv)->__runtime)->pipe_mask & (1UL << (pipe)))) {} else | |||
714 | num_active_planes += bw_state->num_active_planes[pipe]; | |||
715 | ||||
716 | return num_active_planes; | |||
717 | } | |||
718 | ||||
719 | static unsigned int intel_bw_data_rate(struct drm_i915_privateinteldrm_softc *dev_priv, | |||
720 | const struct intel_bw_state *bw_state) | |||
721 | { | |||
722 | unsigned int data_rate = 0; | |||
723 | enum pipe pipe; | |||
724 | ||||
725 | for_each_pipe(dev_priv, pipe)for ((pipe) = 0; (pipe) < I915_MAX_PIPES; (pipe)++) if (!( (&(dev_priv)->__runtime)->pipe_mask & (1UL << (pipe)))) {} else | |||
726 | data_rate += bw_state->data_rate[pipe]; | |||
| ||||
727 | ||||
728 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) >= 13 && i915_vtd_active(dev_priv)) | |||
729 | data_rate = DIV_ROUND_UP(data_rate * 105, 100)(((data_rate * 105) + ((100) - 1)) / (100)); | |||
730 | ||||
731 | return data_rate; | |||
732 | } | |||
733 | ||||
734 | struct intel_bw_state * | |||
735 | intel_atomic_get_old_bw_state(struct intel_atomic_state *state) | |||
736 | { | |||
737 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(state->base.dev); | |||
738 | struct intel_global_state *bw_state; | |||
739 | ||||
740 | bw_state = intel_atomic_get_old_global_obj_state(state, &dev_priv->display.bw.obj); | |||
741 | ||||
742 | return to_intel_bw_state(bw_state)({ const __typeof( ((struct intel_bw_state *)0)->base ) *__mptr = ((bw_state)); (struct intel_bw_state *)( (char *)__mptr - __builtin_offsetof (struct intel_bw_state, base) );}); | |||
743 | } | |||
744 | ||||
745 | struct intel_bw_state * | |||
746 | intel_atomic_get_new_bw_state(struct intel_atomic_state *state) | |||
747 | { | |||
748 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(state->base.dev); | |||
749 | struct intel_global_state *bw_state; | |||
750 | ||||
751 | bw_state = intel_atomic_get_new_global_obj_state(state, &dev_priv->display.bw.obj); | |||
752 | ||||
753 | return to_intel_bw_state(bw_state)({ const __typeof( ((struct intel_bw_state *)0)->base ) *__mptr = ((bw_state)); (struct intel_bw_state *)( (char *)__mptr - __builtin_offsetof (struct intel_bw_state, base) );}); | |||
754 | } | |||
755 | ||||
756 | struct intel_bw_state * | |||
757 | intel_atomic_get_bw_state(struct intel_atomic_state *state) | |||
758 | { | |||
759 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(state->base.dev); | |||
760 | struct intel_global_state *bw_state; | |||
761 | ||||
762 | bw_state = intel_atomic_get_global_obj_state(state, &dev_priv->display.bw.obj); | |||
763 | if (IS_ERR(bw_state)) | |||
764 | return ERR_CAST(bw_state); | |||
765 | ||||
766 | return to_intel_bw_state(bw_state)({ const __typeof( ((struct intel_bw_state *)0)->base ) *__mptr = ((bw_state)); (struct intel_bw_state *)( (char *)__mptr - __builtin_offsetof (struct intel_bw_state, base) );}); | |||
767 | } | |||
768 | ||||
769 | static bool_Bool intel_bw_state_changed(struct drm_i915_privateinteldrm_softc *i915, | |||
770 | const struct intel_bw_state *old_bw_state, | |||
771 | const struct intel_bw_state *new_bw_state) | |||
772 | { | |||
773 | enum pipe pipe; | |||
774 | ||||
775 | for_each_pipe(i915, pipe)for ((pipe) = 0; (pipe) < I915_MAX_PIPES; (pipe)++) if (!( (&(i915)->__runtime)->pipe_mask & (1UL << (pipe)))) {} else { | |||
776 | const struct intel_dbuf_bw *old_crtc_bw = | |||
777 | &old_bw_state->dbuf_bw[pipe]; | |||
778 | const struct intel_dbuf_bw *new_crtc_bw = | |||
779 | &new_bw_state->dbuf_bw[pipe]; | |||
780 | enum dbuf_slice slice; | |||
781 | ||||
782 | for_each_dbuf_slice(i915, slice)for ((slice) = DBUF_S1; (slice) < I915_MAX_DBUF_SLICES; (slice )++) if (!((&(i915)->__info)->display.dbuf.slice_mask & (1UL << (slice)))) {} else { | |||
783 | if (old_crtc_bw->max_bw[slice] != new_crtc_bw->max_bw[slice] || | |||
784 | old_crtc_bw->active_planes[slice] != new_crtc_bw->active_planes[slice]) | |||
785 | return true1; | |||
786 | } | |||
787 | ||||
788 | if (old_bw_state->min_cdclk[pipe] != new_bw_state->min_cdclk[pipe]) | |||
789 | return true1; | |||
790 | } | |||
791 | ||||
792 | return false0; | |||
793 | } | |||
794 | ||||
795 | static void skl_plane_calc_dbuf_bw(struct intel_bw_state *bw_state, | |||
796 | struct intel_crtc *crtc, | |||
797 | enum plane_id plane_id, | |||
798 | const struct skl_ddb_entry *ddb, | |||
799 | unsigned int data_rate) | |||
800 | { | |||
801 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(crtc->base.dev); | |||
802 | struct intel_dbuf_bw *crtc_bw = &bw_state->dbuf_bw[crtc->pipe]; | |||
803 | unsigned int dbuf_mask = skl_ddb_dbuf_slice_mask(i915, ddb); | |||
804 | enum dbuf_slice slice; | |||
805 | ||||
806 | /* | |||
807 | * The arbiter can only really guarantee an | |||
808 | * equal share of the total bw to each plane. | |||
809 | */ | |||
810 | for_each_dbuf_slice_in_mask(i915, slice, dbuf_mask)for (((slice)) = DBUF_S1; ((slice)) < I915_MAX_DBUF_SLICES ; ((slice))++) if (!((&((i915))->__info)->display.dbuf .slice_mask & (1UL << ((slice))))) {} else if (!((dbuf_mask ) & (1UL << (slice)))) {} else { | |||
811 | crtc_bw->max_bw[slice] = max(crtc_bw->max_bw[slice], data_rate)(((crtc_bw->max_bw[slice])>(data_rate))?(crtc_bw->max_bw [slice]):(data_rate)); | |||
812 | crtc_bw->active_planes[slice] |= BIT(plane_id)(1UL << (plane_id)); | |||
813 | } | |||
814 | } | |||
815 | ||||
816 | static void skl_crtc_calc_dbuf_bw(struct intel_bw_state *bw_state, | |||
817 | const struct intel_crtc_state *crtc_state) | |||
818 | { | |||
819 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc)({ const __typeof( ((struct intel_crtc *)0)->base ) *__mptr = (crtc_state->uapi.crtc); (struct intel_crtc *)( (char * )__mptr - __builtin_offsetof(struct intel_crtc, base) );}); | |||
820 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(crtc->base.dev); | |||
821 | struct intel_dbuf_bw *crtc_bw = &bw_state->dbuf_bw[crtc->pipe]; | |||
822 | enum plane_id plane_id; | |||
823 | ||||
824 | memset(crtc_bw, 0, sizeof(*crtc_bw))__builtin_memset((crtc_bw), (0), (sizeof(*crtc_bw))); | |||
825 | ||||
826 | if (!crtc_state->hw.active) | |||
827 | return; | |||
828 | ||||
829 | for_each_plane_id_on_crtc(crtc, plane_id)for ((plane_id) = PLANE_PRIMARY; (plane_id) < I915_MAX_PLANES ; (plane_id)++) if (!((crtc)->plane_ids_mask & (1UL << (plane_id)))) {} else { | |||
830 | /* | |||
831 | * We assume cursors are small enough | |||
832 | * to not cause bandwidth problems. | |||
833 | */ | |||
834 | if (plane_id == PLANE_CURSOR) | |||
835 | continue; | |||
836 | ||||
837 | skl_plane_calc_dbuf_bw(bw_state, crtc, plane_id, | |||
838 | &crtc_state->wm.skl.plane_ddb[plane_id], | |||
839 | crtc_state->data_rate[plane_id]); | |||
840 | ||||
841 | if (DISPLAY_VER(i915)((&(i915)->__runtime)->display.ip.ver) < 11) | |||
842 | skl_plane_calc_dbuf_bw(bw_state, crtc, plane_id, | |||
843 | &crtc_state->wm.skl.plane_ddb_y[plane_id], | |||
844 | crtc_state->data_rate[plane_id]); | |||
845 | } | |||
846 | } | |||
847 | ||||
848 | /* "Maximum Data Buffer Bandwidth" */ | |||
849 | static int | |||
850 | intel_bw_dbuf_min_cdclk(struct drm_i915_privateinteldrm_softc *i915, | |||
851 | const struct intel_bw_state *bw_state) | |||
852 | { | |||
853 | unsigned int total_max_bw = 0; | |||
854 | enum dbuf_slice slice; | |||
855 | ||||
856 | for_each_dbuf_slice(i915, slice)for ((slice) = DBUF_S1; (slice) < I915_MAX_DBUF_SLICES; (slice )++) if (!((&(i915)->__info)->display.dbuf.slice_mask & (1UL << (slice)))) {} else { | |||
857 | int num_active_planes = 0; | |||
858 | unsigned int max_bw = 0; | |||
859 | enum pipe pipe; | |||
860 | ||||
861 | /* | |||
862 | * The arbiter can only really guarantee an | |||
863 | * equal share of the total bw to each plane. | |||
864 | */ | |||
865 | for_each_pipe(i915, pipe)for ((pipe) = 0; (pipe) < I915_MAX_PIPES; (pipe)++) if (!( (&(i915)->__runtime)->pipe_mask & (1UL << (pipe)))) {} else { | |||
866 | const struct intel_dbuf_bw *crtc_bw = &bw_state->dbuf_bw[pipe]; | |||
867 | ||||
868 | max_bw = max(crtc_bw->max_bw[slice], max_bw)(((crtc_bw->max_bw[slice])>(max_bw))?(crtc_bw->max_bw [slice]):(max_bw)); | |||
869 | num_active_planes += hweight8(crtc_bw->active_planes[slice]); | |||
870 | } | |||
871 | max_bw *= num_active_planes; | |||
872 | ||||
873 | total_max_bw = max(total_max_bw, max_bw)(((total_max_bw)>(max_bw))?(total_max_bw):(max_bw)); | |||
874 | } | |||
875 | ||||
876 | return DIV_ROUND_UP(total_max_bw, 64)(((total_max_bw) + ((64) - 1)) / (64)); | |||
877 | } | |||
878 | ||||
879 | int intel_bw_min_cdclk(struct drm_i915_privateinteldrm_softc *i915, | |||
880 | const struct intel_bw_state *bw_state) | |||
881 | { | |||
882 | enum pipe pipe; | |||
883 | int min_cdclk; | |||
884 | ||||
885 | min_cdclk = intel_bw_dbuf_min_cdclk(i915, bw_state); | |||
886 | ||||
887 | for_each_pipe(i915, pipe)for ((pipe) = 0; (pipe) < I915_MAX_PIPES; (pipe)++) if (!( (&(i915)->__runtime)->pipe_mask & (1UL << (pipe)))) {} else | |||
888 | min_cdclk = max(bw_state->min_cdclk[pipe], min_cdclk)(((bw_state->min_cdclk[pipe])>(min_cdclk))?(bw_state-> min_cdclk[pipe]):(min_cdclk)); | |||
889 | ||||
890 | return min_cdclk; | |||
891 | } | |||
892 | ||||
893 | int intel_bw_calc_min_cdclk(struct intel_atomic_state *state, | |||
894 | bool_Bool *need_cdclk_calc) | |||
895 | { | |||
896 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(state->base.dev); | |||
897 | struct intel_bw_state *new_bw_state = NULL((void *)0); | |||
898 | const struct intel_bw_state *old_bw_state = NULL((void *)0); | |||
899 | const struct intel_cdclk_state *cdclk_state; | |||
900 | const struct intel_crtc_state *crtc_state; | |||
901 | int old_min_cdclk, new_min_cdclk; | |||
902 | struct intel_crtc *crtc; | |||
903 | int i; | |||
904 | ||||
905 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) < 9) | |||
906 | return 0; | |||
907 | ||||
908 | for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i)for ((i) = 0; (i) < (state)->base.dev->mode_config.num_crtc && ((crtc) = ({ const __typeof( ((struct intel_crtc * )0)->base ) *__mptr = ((state)->base.crtcs[i].ptr); (struct intel_crtc *)( (char *)__mptr - __builtin_offsetof(struct intel_crtc , base) );}), (crtc_state) = ({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) *__mptr = ((state)->base.crtcs[i].new_state ); (struct intel_crtc_state *)( (char *)__mptr - __builtin_offsetof (struct intel_crtc_state, uapi) );}), 1); (i)++) if (!(crtc)) {} else { | |||
909 | new_bw_state = intel_atomic_get_bw_state(state); | |||
910 | if (IS_ERR(new_bw_state)) | |||
911 | return PTR_ERR(new_bw_state); | |||
912 | ||||
913 | old_bw_state = intel_atomic_get_old_bw_state(state); | |||
914 | ||||
915 | skl_crtc_calc_dbuf_bw(new_bw_state, crtc_state); | |||
916 | ||||
917 | new_bw_state->min_cdclk[crtc->pipe] = | |||
918 | intel_bw_crtc_min_cdclk(crtc_state); | |||
919 | } | |||
920 | ||||
921 | if (!old_bw_state) | |||
922 | return 0; | |||
923 | ||||
924 | if (intel_bw_state_changed(dev_priv, old_bw_state, new_bw_state)) { | |||
925 | int ret = intel_atomic_lock_global_state(&new_bw_state->base); | |||
926 | if (ret) | |||
927 | return ret; | |||
928 | } | |||
929 | ||||
930 | old_min_cdclk = intel_bw_min_cdclk(dev_priv, old_bw_state); | |||
931 | new_min_cdclk = intel_bw_min_cdclk(dev_priv, new_bw_state); | |||
932 | ||||
933 | /* | |||
934 | * No need to check against the cdclk state if | |||
935 | * the min cdclk doesn't increase. | |||
936 | * | |||
937 | * Ie. we only ever increase the cdclk due to bandwidth | |||
938 | * requirements. This can reduce back and forth | |||
939 | * display blinking due to constant cdclk changes. | |||
940 | */ | |||
941 | if (new_min_cdclk <= old_min_cdclk) | |||
942 | return 0; | |||
943 | ||||
944 | cdclk_state = intel_atomic_get_cdclk_state(state); | |||
945 | if (IS_ERR(cdclk_state)) | |||
946 | return PTR_ERR(cdclk_state); | |||
947 | ||||
948 | /* | |||
949 | * No need to recalculate the cdclk state if | |||
950 | * the min cdclk doesn't increase. | |||
951 | * | |||
952 | * Ie. we only ever increase the cdclk due to bandwidth | |||
953 | * requirements. This can reduce back and forth | |||
954 | * display blinking due to constant cdclk changes. | |||
955 | */ | |||
956 | if (new_min_cdclk <= cdclk_state->bw_min_cdclk) | |||
957 | return 0; | |||
958 | ||||
959 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "new bandwidth min cdclk (%d kHz) > old min cdclk (%d kHz)\n" , new_min_cdclk, cdclk_state->bw_min_cdclk) | |||
960 | "new bandwidth min cdclk (%d kHz) > old min cdclk (%d kHz)\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "new bandwidth min cdclk (%d kHz) > old min cdclk (%d kHz)\n" , new_min_cdclk, cdclk_state->bw_min_cdclk) | |||
961 | new_min_cdclk, cdclk_state->bw_min_cdclk)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "new bandwidth min cdclk (%d kHz) > old min cdclk (%d kHz)\n" , new_min_cdclk, cdclk_state->bw_min_cdclk); | |||
962 | *need_cdclk_calc = true1; | |||
963 | ||||
964 | return 0; | |||
965 | } | |||
966 | ||||
967 | static u16 icl_qgv_points_mask(struct drm_i915_privateinteldrm_softc *i915) | |||
968 | { | |||
969 | unsigned int num_psf_gv_points = i915->display.bw.max[0].num_psf_gv_points; | |||
970 | unsigned int num_qgv_points = i915->display.bw.max[0].num_qgv_points; | |||
971 | u16 qgv_points = 0, psf_points = 0; | |||
972 | ||||
973 | /* | |||
974 | * We can _not_ use the whole ADLS_QGV_PT_MASK here, as PCode rejects | |||
975 | * it with failure if we try masking any unadvertised points. | |||
976 | * So need to operate only with those returned from PCode. | |||
977 | */ | |||
978 | if (num_qgv_points > 0) | |||
979 | qgv_points = GENMASK(num_qgv_points - 1, 0)(((~0UL) >> (64 - (num_qgv_points - 1) - 1)) & ((~0UL ) << (0))); | |||
980 | ||||
981 | if (num_psf_gv_points > 0) | |||
982 | psf_points = GENMASK(num_psf_gv_points - 1, 0)(((~0UL) >> (64 - (num_psf_gv_points - 1) - 1)) & ( (~0UL) << (0))); | |||
983 | ||||
984 | return ICL_PCODE_REQ_QGV_PT(qgv_points)((u32)((((typeof(((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0))))((qgv_points)) << (__builtin_ffsll (((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0))) - 1)) & (((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0)))) + 0 + 0 + 0 + 0)) | ADLS_PCODE_REQ_PSF_PT(psf_points)((u32)((((typeof(((u32)((((~0UL) >> (64 - (10) - 1)) & ((~0UL) << (8))) + 0))))((psf_points)) << (__builtin_ffsll (((u32)((((~0UL) >> (64 - (10) - 1)) & ((~0UL) << (8))) + 0))) - 1)) & (((u32)((((~0UL) >> (64 - (10 ) - 1)) & ((~0UL) << (8))) + 0)))) + 0 + 0 + 0 + 0) ); | |||
985 | } | |||
986 | ||||
987 | static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool_Bool *changed) | |||
988 | { | |||
989 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(state->base.dev); | |||
990 | const struct intel_crtc_state *new_crtc_state, *old_crtc_state; | |||
991 | struct intel_crtc *crtc; | |||
992 | int i; | |||
993 | ||||
994 | for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,for ((i) = 0; (i) < (state)->base.dev->mode_config.num_crtc && ((crtc) = ({ const __typeof( ((struct intel_crtc * )0)->base ) *__mptr = ((state)->base.crtcs[i].ptr); (struct intel_crtc *)( (char *)__mptr - __builtin_offsetof(struct intel_crtc , base) );}), (old_crtc_state) = ({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) *__mptr = ((state)->base.crtcs[i].old_state ); (struct intel_crtc_state *)( (char *)__mptr - __builtin_offsetof (struct intel_crtc_state, uapi) );}), (new_crtc_state) = ({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) *__mptr = ((state)->base.crtcs[i].new_state); (struct intel_crtc_state *)( (char *)__mptr - __builtin_offsetof(struct intel_crtc_state , uapi) );}), 1); (i)++) if (!(crtc)) {} else | |||
995 | new_crtc_state, i)for ((i) = 0; (i) < (state)->base.dev->mode_config.num_crtc && ((crtc) = ({ const __typeof( ((struct intel_crtc * )0)->base ) *__mptr = ((state)->base.crtcs[i].ptr); (struct intel_crtc *)( (char *)__mptr - __builtin_offsetof(struct intel_crtc , base) );}), (old_crtc_state) = ({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) *__mptr = ((state)->base.crtcs[i].old_state ); (struct intel_crtc_state *)( (char *)__mptr - __builtin_offsetof (struct intel_crtc_state, uapi) );}), (new_crtc_state) = ({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) *__mptr = ((state)->base.crtcs[i].new_state); (struct intel_crtc_state *)( (char *)__mptr - __builtin_offsetof(struct intel_crtc_state , uapi) );}), 1); (i)++) if (!(crtc)) {} else { | |||
996 | unsigned int old_data_rate = | |||
997 | intel_bw_crtc_data_rate(old_crtc_state); | |||
998 | unsigned int new_data_rate = | |||
999 | intel_bw_crtc_data_rate(new_crtc_state); | |||
1000 | unsigned int old_active_planes = | |||
1001 | intel_bw_crtc_num_active_planes(old_crtc_state); | |||
1002 | unsigned int new_active_planes = | |||
1003 | intel_bw_crtc_num_active_planes(new_crtc_state); | |||
1004 | struct intel_bw_state *new_bw_state; | |||
1005 | ||||
1006 | /* | |||
1007 | * Avoid locking the bw state when | |||
1008 | * nothing significant has changed. | |||
1009 | */ | |||
1010 | if (old_data_rate == new_data_rate && | |||
1011 | old_active_planes == new_active_planes) | |||
1012 | continue; | |||
1013 | ||||
1014 | new_bw_state = intel_atomic_get_bw_state(state); | |||
1015 | if (IS_ERR(new_bw_state)) | |||
1016 | return PTR_ERR(new_bw_state); | |||
1017 | ||||
1018 | new_bw_state->data_rate[crtc->pipe] = new_data_rate; | |||
1019 | new_bw_state->num_active_planes[crtc->pipe] = new_active_planes; | |||
1020 | ||||
1021 | *changed = true1; | |||
1022 | ||||
1023 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] data rate %u num active planes %u\n" , crtc->base.base.id, crtc->base.name, new_bw_state-> data_rate[crtc->pipe], new_bw_state->num_active_planes[ crtc->pipe]) | |||
1024 | "[CRTC:%d:%s] data rate %u num active planes %u\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] data rate %u num active planes %u\n" , crtc->base.base.id, crtc->base.name, new_bw_state-> data_rate[crtc->pipe], new_bw_state->num_active_planes[ crtc->pipe]) | |||
1025 | crtc->base.base.id, crtc->base.name,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] data rate %u num active planes %u\n" , crtc->base.base.id, crtc->base.name, new_bw_state-> data_rate[crtc->pipe], new_bw_state->num_active_planes[ crtc->pipe]) | |||
1026 | new_bw_state->data_rate[crtc->pipe],__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] data rate %u num active planes %u\n" , crtc->base.base.id, crtc->base.name, new_bw_state-> data_rate[crtc->pipe], new_bw_state->num_active_planes[ crtc->pipe]) | |||
1027 | new_bw_state->num_active_planes[crtc->pipe])__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] data rate %u num active planes %u\n" , crtc->base.base.id, crtc->base.name, new_bw_state-> data_rate[crtc->pipe], new_bw_state->num_active_planes[ crtc->pipe]); | |||
1028 | } | |||
1029 | ||||
1030 | return 0; | |||
1031 | } | |||
1032 | ||||
1033 | int intel_bw_atomic_check(struct intel_atomic_state *state) | |||
1034 | { | |||
1035 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(state->base.dev); | |||
1036 | const struct intel_bw_state *old_bw_state; | |||
1037 | struct intel_bw_state *new_bw_state; | |||
1038 | unsigned int data_rate; | |||
1039 | unsigned int num_active_planes; | |||
1040 | int i, ret; | |||
1041 | u16 qgv_points = 0, psf_points = 0; | |||
1042 | unsigned int max_bw_point = 0, max_bw = 0; | |||
1043 | unsigned int num_qgv_points = dev_priv->display.bw.max[0].num_qgv_points; | |||
1044 | unsigned int num_psf_gv_points = dev_priv->display.bw.max[0].num_psf_gv_points; | |||
1045 | bool_Bool changed = false0; | |||
1046 | ||||
1047 | /* FIXME earlier gens need some checks too */ | |||
1048 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) < 11) | |||
| ||||
1049 | return 0; | |||
1050 | ||||
1051 | ret = intel_bw_check_data_rate(state, &changed); | |||
1052 | if (ret) | |||
1053 | return ret; | |||
1054 | ||||
1055 | old_bw_state = intel_atomic_get_old_bw_state(state); | |||
1056 | new_bw_state = intel_atomic_get_new_bw_state(state); | |||
1057 | ||||
1058 | if (new_bw_state && | |||
1059 | intel_can_enable_sagv(dev_priv, old_bw_state) != | |||
1060 | intel_can_enable_sagv(dev_priv, new_bw_state)) | |||
1061 | changed = true1; | |||
1062 | ||||
1063 | /* | |||
1064 | * If none of our inputs (data rates, number of active | |||
1065 | * planes, SAGV yes/no) changed then nothing to do here. | |||
1066 | */ | |||
1067 | if (!changed) | |||
1068 | return 0; | |||
1069 | ||||
1070 | ret = intel_atomic_lock_global_state(&new_bw_state->base); | |||
1071 | if (ret) | |||
1072 | return ret; | |||
1073 | ||||
1074 | data_rate = intel_bw_data_rate(dev_priv, new_bw_state); | |||
1075 | data_rate = DIV_ROUND_UP(data_rate, 1000)(((data_rate) + ((1000) - 1)) / (1000)); | |||
1076 | ||||
1077 | num_active_planes = intel_bw_num_active_planes(dev_priv, new_bw_state); | |||
1078 | ||||
1079 | for (i = 0; i < num_qgv_points; i++) { | |||
1080 | unsigned int max_data_rate; | |||
1081 | ||||
1082 | if (DISPLAY_VER(dev_priv)((&(dev_priv)->__runtime)->display.ip.ver) > 11) | |||
1083 | max_data_rate = tgl_max_bw(dev_priv, num_active_planes, i); | |||
1084 | else | |||
1085 | max_data_rate = icl_max_bw(dev_priv, num_active_planes, i); | |||
1086 | /* | |||
1087 | * We need to know which qgv point gives us | |||
1088 | * maximum bandwidth in order to disable SAGV | |||
1089 | * if we find that we exceed SAGV block time | |||
1090 | * with watermarks. By that moment we already | |||
1091 | * have those, as it is calculated earlier in | |||
1092 | * intel_atomic_check, | |||
1093 | */ | |||
1094 | if (max_data_rate > max_bw) { | |||
1095 | max_bw_point = i; | |||
1096 | max_bw = max_data_rate; | |||
1097 | } | |||
1098 | if (max_data_rate >= data_rate) | |||
1099 | qgv_points |= BIT(i)(1UL << (i)); | |||
1100 | ||||
1101 | drm_dbg_kms(&dev_priv->drm, "QGV point %d: max bw %d required %d\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "QGV point %d: max bw %d required %d\n" , i, max_data_rate, data_rate) | |||
1102 | i, max_data_rate, data_rate)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "QGV point %d: max bw %d required %d\n" , i, max_data_rate, data_rate); | |||
1103 | } | |||
1104 | ||||
1105 | for (i = 0; i < num_psf_gv_points; i++) { | |||
1106 | unsigned int max_data_rate = adl_psf_bw(dev_priv, i); | |||
1107 | ||||
1108 | if (max_data_rate >= data_rate) | |||
1109 | psf_points |= BIT(i)(1UL << (i)); | |||
1110 | ||||
1111 | drm_dbg_kms(&dev_priv->drm, "PSF GV point %d: max bw %d"__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "PSF GV point %d: max bw %d" " required %d\n", i, max_data_rate, data_rate) | |||
1112 | " required %d\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "PSF GV point %d: max bw %d" " required %d\n", i, max_data_rate, data_rate) | |||
1113 | i, max_data_rate, data_rate)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "PSF GV point %d: max bw %d" " required %d\n", i, max_data_rate, data_rate); | |||
1114 | } | |||
1115 | ||||
1116 | /* | |||
1117 | * BSpec states that we always should have at least one allowed point | |||
1118 | * left, so if we couldn't - simply reject the configuration for obvious | |||
1119 | * reasons. | |||
1120 | */ | |||
1121 | if (qgv_points == 0) { | |||
1122 | drm_dbg_kms(&dev_priv->drm, "No QGV points provide sufficient memory"__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No QGV points provide sufficient memory" " bandwidth %d for display configuration(%d active planes).\n" , data_rate, num_active_planes) | |||
1123 | " bandwidth %d for display configuration(%d active planes).\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No QGV points provide sufficient memory" " bandwidth %d for display configuration(%d active planes).\n" , data_rate, num_active_planes) | |||
1124 | data_rate, num_active_planes)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No QGV points provide sufficient memory" " bandwidth %d for display configuration(%d active planes).\n" , data_rate, num_active_planes); | |||
1125 | return -EINVAL22; | |||
1126 | } | |||
1127 | ||||
1128 | if (num_psf_gv_points > 0 && psf_points == 0) { | |||
1129 | drm_dbg_kms(&dev_priv->drm, "No PSF GV points provide sufficient memory"__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No PSF GV points provide sufficient memory" " bandwidth %d for display configuration(%d active planes).\n" , data_rate, num_active_planes) | |||
1130 | " bandwidth %d for display configuration(%d active planes).\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No PSF GV points provide sufficient memory" " bandwidth %d for display configuration(%d active planes).\n" , data_rate, num_active_planes) | |||
1131 | data_rate, num_active_planes)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No PSF GV points provide sufficient memory" " bandwidth %d for display configuration(%d active planes).\n" , data_rate, num_active_planes); | |||
1132 | return -EINVAL22; | |||
1133 | } | |||
1134 | ||||
1135 | /* | |||
1136 | * Leave only single point with highest bandwidth, if | |||
1137 | * we can't enable SAGV due to the increased memory latency it may | |||
1138 | * cause. | |||
1139 | */ | |||
1140 | if (!intel_can_enable_sagv(dev_priv, new_bw_state)) { | |||
1141 | qgv_points = BIT(max_bw_point)(1UL << (max_bw_point)); | |||
1142 | drm_dbg_kms(&dev_priv->drm, "No SAGV, using single QGV point %d\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No SAGV, using single QGV point %d\n" , max_bw_point) | |||
1143 | max_bw_point)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "No SAGV, using single QGV point %d\n" , max_bw_point); | |||
1144 | } | |||
1145 | ||||
1146 | /* | |||
1147 | * We store the ones which need to be masked as that is what PCode | |||
1148 | * actually accepts as a parameter. | |||
1149 | */ | |||
1150 | new_bw_state->qgv_points_mask = | |||
1151 | ~(ICL_PCODE_REQ_QGV_PT(qgv_points)((u32)((((typeof(((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0))))((qgv_points)) << (__builtin_ffsll (((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0))) - 1)) & (((u32)((((~0UL) >> (64 - (7) - 1)) & ((~0UL) << (0))) + 0)))) + 0 + 0 + 0 + 0)) | | |||
1152 | ADLS_PCODE_REQ_PSF_PT(psf_points)((u32)((((typeof(((u32)((((~0UL) >> (64 - (10) - 1)) & ((~0UL) << (8))) + 0))))((psf_points)) << (__builtin_ffsll (((u32)((((~0UL) >> (64 - (10) - 1)) & ((~0UL) << (8))) + 0))) - 1)) & (((u32)((((~0UL) >> (64 - (10 ) - 1)) & ((~0UL) << (8))) + 0)))) + 0 + 0 + 0 + 0) )) & | |||
1153 | icl_qgv_points_mask(dev_priv); | |||
1154 | ||||
1155 | /* | |||
1156 | * If the actual mask had changed we need to make sure that | |||
1157 | * the commits are serialized(in case this is a nomodeset, nonblocking) | |||
1158 | */ | |||
1159 | if (new_bw_state->qgv_points_mask != old_bw_state->qgv_points_mask) { | |||
1160 | ret = intel_atomic_serialize_global_state(&new_bw_state->base); | |||
1161 | if (ret) | |||
1162 | return ret; | |||
1163 | } | |||
1164 | ||||
1165 | return 0; | |||
1166 | } | |||
1167 | ||||
1168 | static struct intel_global_state * | |||
1169 | intel_bw_duplicate_state(struct intel_global_obj *obj) | |||
1170 | { | |||
1171 | struct intel_bw_state *state; | |||
1172 | ||||
1173 | state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL(0x0001 | 0x0004)); | |||
1174 | if (!state) | |||
1175 | return NULL((void *)0); | |||
1176 | ||||
1177 | return &state->base; | |||
1178 | } | |||
1179 | ||||
1180 | static void intel_bw_destroy_state(struct intel_global_obj *obj, | |||
1181 | struct intel_global_state *state) | |||
1182 | { | |||
1183 | kfree(state); | |||
1184 | } | |||
1185 | ||||
1186 | static const struct intel_global_state_funcs intel_bw_funcs = { | |||
1187 | .atomic_duplicate_state = intel_bw_duplicate_state, | |||
1188 | .atomic_destroy_state = intel_bw_destroy_state, | |||
1189 | }; | |||
1190 | ||||
1191 | int intel_bw_init(struct drm_i915_privateinteldrm_softc *dev_priv) | |||
1192 | { | |||
1193 | struct intel_bw_state *state; | |||
1194 | ||||
1195 | state = kzalloc(sizeof(*state), GFP_KERNEL(0x0001 | 0x0004)); | |||
1196 | if (!state) | |||
1197 | return -ENOMEM12; | |||
1198 | ||||
1199 | intel_atomic_global_obj_init(dev_priv, &dev_priv->display.bw.obj, | |||
1200 | &state->base, &intel_bw_funcs); | |||
1201 | ||||
1202 | return 0; | |||
1203 | } |