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17865713 ZW |
1 | /* |
2 | * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. | |
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 FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eddie Dong <eddie.dong@intel.com> | |
25 | * Kevin Tian <kevin.tian@intel.com> | |
26 | * | |
27 | * Contributors: | |
28 | * Zhi Wang <zhi.a.wang@intel.com> | |
29 | * Changbin Du <changbin.du@intel.com> | |
30 | * Zhenyu Wang <zhenyuw@linux.intel.com> | |
31 | * Tina Zhang <tina.zhang@intel.com> | |
32 | * Bing Niu <bing.niu@intel.com> | |
33 | * | |
34 | */ | |
35 | ||
36 | #include "i915_drv.h" | |
feddf6e8 | 37 | #include "gvt.h" |
17865713 ZW |
38 | |
39 | struct render_mmio { | |
40 | int ring_id; | |
41 | i915_reg_t reg; | |
42 | u32 mask; | |
43 | bool in_context; | |
44 | u32 value; | |
45 | }; | |
46 | ||
47 | static struct render_mmio gen8_render_mmio_list[] = { | |
48 | {RCS, _MMIO(0x229c), 0xffff, false}, | |
49 | {RCS, _MMIO(0x2248), 0x0, false}, | |
50 | {RCS, _MMIO(0x2098), 0x0, false}, | |
51 | {RCS, _MMIO(0x20c0), 0xffff, true}, | |
52 | {RCS, _MMIO(0x24d0), 0, false}, | |
53 | {RCS, _MMIO(0x24d4), 0, false}, | |
54 | {RCS, _MMIO(0x24d8), 0, false}, | |
55 | {RCS, _MMIO(0x24dc), 0, false}, | |
4c4b22ab ZY |
56 | {RCS, _MMIO(0x24e0), 0, false}, |
57 | {RCS, _MMIO(0x24e4), 0, false}, | |
58 | {RCS, _MMIO(0x24e8), 0, false}, | |
59 | {RCS, _MMIO(0x24ec), 0, false}, | |
60 | {RCS, _MMIO(0x24f0), 0, false}, | |
61 | {RCS, _MMIO(0x24f4), 0, false}, | |
62 | {RCS, _MMIO(0x24f8), 0, false}, | |
63 | {RCS, _MMIO(0x24fc), 0, false}, | |
17865713 ZW |
64 | {RCS, _MMIO(0x7004), 0xffff, true}, |
65 | {RCS, _MMIO(0x7008), 0xffff, true}, | |
66 | {RCS, _MMIO(0x7000), 0xffff, true}, | |
67 | {RCS, _MMIO(0x7010), 0xffff, true}, | |
68 | {RCS, _MMIO(0x7300), 0xffff, true}, | |
69 | {RCS, _MMIO(0x83a4), 0xffff, true}, | |
70 | ||
71 | {BCS, _MMIO(0x2229c), 0xffff, false}, | |
72 | {BCS, _MMIO(0x2209c), 0xffff, false}, | |
73 | {BCS, _MMIO(0x220c0), 0xffff, false}, | |
74 | {BCS, _MMIO(0x22098), 0x0, false}, | |
75 | {BCS, _MMIO(0x22028), 0x0, false}, | |
76 | }; | |
77 | ||
78 | static struct render_mmio gen9_render_mmio_list[] = { | |
79 | {RCS, _MMIO(0x229c), 0xffff, false}, | |
80 | {RCS, _MMIO(0x2248), 0x0, false}, | |
81 | {RCS, _MMIO(0x2098), 0x0, false}, | |
82 | {RCS, _MMIO(0x20c0), 0xffff, true}, | |
83 | {RCS, _MMIO(0x24d0), 0, false}, | |
84 | {RCS, _MMIO(0x24d4), 0, false}, | |
85 | {RCS, _MMIO(0x24d8), 0, false}, | |
86 | {RCS, _MMIO(0x24dc), 0, false}, | |
4c4b22ab ZY |
87 | {RCS, _MMIO(0x24e0), 0, false}, |
88 | {RCS, _MMIO(0x24e4), 0, false}, | |
89 | {RCS, _MMIO(0x24e8), 0, false}, | |
90 | {RCS, _MMIO(0x24ec), 0, false}, | |
91 | {RCS, _MMIO(0x24f0), 0, false}, | |
92 | {RCS, _MMIO(0x24f4), 0, false}, | |
93 | {RCS, _MMIO(0x24f8), 0, false}, | |
94 | {RCS, _MMIO(0x24fc), 0, false}, | |
17865713 ZW |
95 | {RCS, _MMIO(0x7004), 0xffff, true}, |
96 | {RCS, _MMIO(0x7008), 0xffff, true}, | |
97 | {RCS, _MMIO(0x7000), 0xffff, true}, | |
98 | {RCS, _MMIO(0x7010), 0xffff, true}, | |
99 | {RCS, _MMIO(0x7300), 0xffff, true}, | |
100 | {RCS, _MMIO(0x83a4), 0xffff, true}, | |
101 | ||
102 | {RCS, _MMIO(0x40e0), 0, false}, | |
103 | {RCS, _MMIO(0x40e4), 0, false}, | |
104 | {RCS, _MMIO(0x2580), 0xffff, true}, | |
105 | {RCS, _MMIO(0x7014), 0xffff, true}, | |
106 | {RCS, _MMIO(0x20ec), 0xffff, false}, | |
107 | {RCS, _MMIO(0xb118), 0, false}, | |
108 | {RCS, _MMIO(0xe100), 0xffff, true}, | |
109 | {RCS, _MMIO(0xe180), 0xffff, true}, | |
110 | {RCS, _MMIO(0xe184), 0xffff, true}, | |
111 | {RCS, _MMIO(0xe188), 0xffff, true}, | |
112 | {RCS, _MMIO(0xe194), 0xffff, true}, | |
113 | {RCS, _MMIO(0x4de0), 0, false}, | |
114 | {RCS, _MMIO(0x4de4), 0, false}, | |
115 | {RCS, _MMIO(0x4de8), 0, false}, | |
116 | {RCS, _MMIO(0x4dec), 0, false}, | |
117 | {RCS, _MMIO(0x4df0), 0, false}, | |
118 | {RCS, _MMIO(0x4df4), 0, false}, | |
119 | ||
120 | {BCS, _MMIO(0x2229c), 0xffff, false}, | |
121 | {BCS, _MMIO(0x2209c), 0xffff, false}, | |
122 | {BCS, _MMIO(0x220c0), 0xffff, false}, | |
123 | {BCS, _MMIO(0x22098), 0x0, false}, | |
124 | {BCS, _MMIO(0x22028), 0x0, false}, | |
125 | ||
126 | {VCS2, _MMIO(0x1c028), 0xffff, false}, | |
127 | ||
128 | {VECS, _MMIO(0x1a028), 0xffff, false}, | |
129 | }; | |
130 | ||
131 | static u32 gen9_render_mocs[I915_NUM_ENGINES][64]; | |
132 | static u32 gen9_render_mocs_L3[32]; | |
133 | ||
134 | static void handle_tlb_pending_event(struct intel_vgpu *vgpu, int ring_id) | |
135 | { | |
136 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
1c860a30 | 137 | enum forcewake_domains fw; |
17865713 ZW |
138 | i915_reg_t reg; |
139 | u32 regs[] = { | |
140 | [RCS] = 0x4260, | |
141 | [VCS] = 0x4264, | |
142 | [VCS2] = 0x4268, | |
143 | [BCS] = 0x426c, | |
144 | [VECS] = 0x4270, | |
145 | }; | |
146 | ||
147 | if (WARN_ON(ring_id >= ARRAY_SIZE(regs))) | |
148 | return; | |
149 | ||
150 | if (!test_and_clear_bit(ring_id, (void *)vgpu->tlb_handle_pending)) | |
151 | return; | |
152 | ||
153 | reg = _MMIO(regs[ring_id]); | |
154 | ||
1c860a30 AH |
155 | /* WaForceWakeRenderDuringMmioTLBInvalidate:skl |
156 | * we need to put a forcewake when invalidating RCS TLB caches, | |
157 | * otherwise device can go to RC6 state and interrupt invalidation | |
158 | * process | |
159 | */ | |
160 | fw = intel_uncore_forcewake_for_reg(dev_priv, reg, | |
161 | FW_REG_READ | FW_REG_WRITE); | |
162 | if (ring_id == RCS && IS_SKYLAKE(dev_priv)) | |
163 | fw |= FORCEWAKE_RENDER; | |
17865713 | 164 | |
1c860a30 AH |
165 | intel_uncore_forcewake_get(dev_priv, fw); |
166 | ||
167 | I915_WRITE_FW(reg, 0x1); | |
168 | ||
169 | if (wait_for_atomic((I915_READ_FW(reg) == 0), 50)) | |
695fbc08 | 170 | gvt_vgpu_err("timeout in invalidate ring (%d) tlb\n", ring_id); |
f24940e0 PG |
171 | else |
172 | vgpu_vreg(vgpu, regs[ring_id]) = 0; | |
17865713 | 173 | |
1c860a30 AH |
174 | intel_uncore_forcewake_put(dev_priv, fw); |
175 | ||
17865713 ZW |
176 | gvt_dbg_core("invalidate TLB for ring %d\n", ring_id); |
177 | } | |
178 | ||
179 | static void load_mocs(struct intel_vgpu *vgpu, int ring_id) | |
180 | { | |
181 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
182 | i915_reg_t offset, l3_offset; | |
183 | u32 regs[] = { | |
184 | [RCS] = 0xc800, | |
185 | [VCS] = 0xc900, | |
186 | [VCS2] = 0xca00, | |
187 | [BCS] = 0xcc00, | |
188 | [VECS] = 0xcb00, | |
189 | }; | |
190 | int i; | |
191 | ||
192 | if (WARN_ON(ring_id >= ARRAY_SIZE(regs))) | |
193 | return; | |
194 | ||
195 | if (!IS_SKYLAKE(dev_priv)) | |
196 | return; | |
197 | ||
946260e5 | 198 | offset.reg = regs[ring_id]; |
17865713 ZW |
199 | for (i = 0; i < 64; i++) { |
200 | gen9_render_mocs[ring_id][i] = I915_READ(offset); | |
201 | I915_WRITE(offset, vgpu_vreg(vgpu, offset)); | |
202 | POSTING_READ(offset); | |
203 | offset.reg += 4; | |
204 | } | |
205 | ||
206 | if (ring_id == RCS) { | |
207 | l3_offset.reg = 0xb020; | |
208 | for (i = 0; i < 32; i++) { | |
209 | gen9_render_mocs_L3[i] = I915_READ(l3_offset); | |
4a531488 | 210 | I915_WRITE(l3_offset, vgpu_vreg(vgpu, l3_offset)); |
17865713 ZW |
211 | POSTING_READ(l3_offset); |
212 | l3_offset.reg += 4; | |
213 | } | |
214 | } | |
215 | } | |
216 | ||
217 | static void restore_mocs(struct intel_vgpu *vgpu, int ring_id) | |
218 | { | |
219 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
220 | i915_reg_t offset, l3_offset; | |
221 | u32 regs[] = { | |
222 | [RCS] = 0xc800, | |
223 | [VCS] = 0xc900, | |
224 | [VCS2] = 0xca00, | |
225 | [BCS] = 0xcc00, | |
226 | [VECS] = 0xcb00, | |
227 | }; | |
228 | int i; | |
229 | ||
230 | if (WARN_ON(ring_id >= ARRAY_SIZE(regs))) | |
231 | return; | |
232 | ||
233 | if (!IS_SKYLAKE(dev_priv)) | |
234 | return; | |
235 | ||
946260e5 | 236 | offset.reg = regs[ring_id]; |
17865713 ZW |
237 | for (i = 0; i < 64; i++) { |
238 | vgpu_vreg(vgpu, offset) = I915_READ(offset); | |
239 | I915_WRITE(offset, gen9_render_mocs[ring_id][i]); | |
240 | POSTING_READ(offset); | |
241 | offset.reg += 4; | |
242 | } | |
243 | ||
244 | if (ring_id == RCS) { | |
245 | l3_offset.reg = 0xb020; | |
246 | for (i = 0; i < 32; i++) { | |
247 | vgpu_vreg(vgpu, l3_offset) = I915_READ(l3_offset); | |
248 | I915_WRITE(l3_offset, gen9_render_mocs_L3[i]); | |
249 | POSTING_READ(l3_offset); | |
250 | l3_offset.reg += 4; | |
251 | } | |
252 | } | |
253 | } | |
254 | ||
bc6a1c85 CD |
255 | #define CTX_CONTEXT_CONTROL_VAL 0x03 |
256 | ||
17865713 ZW |
257 | void intel_gvt_load_render_mmio(struct intel_vgpu *vgpu, int ring_id) |
258 | { | |
259 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
260 | struct render_mmio *mmio; | |
261 | u32 v; | |
262 | int i, array_size; | |
bc6a1c85 CD |
263 | u32 *reg_state = vgpu->shadow_ctx->engine[ring_id].lrc_reg_state; |
264 | u32 ctx_ctrl = reg_state[CTX_CONTEXT_CONTROL_VAL]; | |
265 | u32 inhibit_mask = | |
266 | _MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT); | |
17865713 ZW |
267 | |
268 | if (IS_SKYLAKE(vgpu->gvt->dev_priv)) { | |
269 | mmio = gen9_render_mmio_list; | |
270 | array_size = ARRAY_SIZE(gen9_render_mmio_list); | |
271 | load_mocs(vgpu, ring_id); | |
272 | } else { | |
273 | mmio = gen8_render_mmio_list; | |
274 | array_size = ARRAY_SIZE(gen8_render_mmio_list); | |
275 | } | |
276 | ||
277 | for (i = 0; i < array_size; i++, mmio++) { | |
278 | if (mmio->ring_id != ring_id) | |
279 | continue; | |
280 | ||
281 | mmio->value = I915_READ(mmio->reg); | |
bc6a1c85 CD |
282 | |
283 | /* | |
284 | * if it is an inhibit context, load in_context mmio | |
285 | * into HW by mmio write. If it is not, skip this mmio | |
286 | * write. | |
287 | */ | |
288 | if (mmio->in_context && | |
289 | ((ctx_ctrl & inhibit_mask) != inhibit_mask) && | |
290 | i915.enable_execlists) | |
291 | continue; | |
292 | ||
17865713 ZW |
293 | if (mmio->mask) |
294 | v = vgpu_vreg(vgpu, mmio->reg) | (mmio->mask << 16); | |
295 | else | |
296 | v = vgpu_vreg(vgpu, mmio->reg); | |
297 | ||
298 | I915_WRITE(mmio->reg, v); | |
299 | POSTING_READ(mmio->reg); | |
300 | ||
301 | gvt_dbg_render("load reg %x old %x new %x\n", | |
302 | i915_mmio_reg_offset(mmio->reg), | |
303 | mmio->value, v); | |
304 | } | |
305 | handle_tlb_pending_event(vgpu, ring_id); | |
306 | } | |
307 | ||
308 | void intel_gvt_restore_render_mmio(struct intel_vgpu *vgpu, int ring_id) | |
309 | { | |
310 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
311 | struct render_mmio *mmio; | |
312 | u32 v; | |
313 | int i, array_size; | |
314 | ||
315 | if (IS_SKYLAKE(dev_priv)) { | |
316 | mmio = gen9_render_mmio_list; | |
317 | array_size = ARRAY_SIZE(gen9_render_mmio_list); | |
318 | restore_mocs(vgpu, ring_id); | |
319 | } else { | |
320 | mmio = gen8_render_mmio_list; | |
321 | array_size = ARRAY_SIZE(gen8_render_mmio_list); | |
322 | } | |
323 | ||
324 | for (i = 0; i < array_size; i++, mmio++) { | |
325 | if (mmio->ring_id != ring_id) | |
326 | continue; | |
327 | ||
328 | vgpu_vreg(vgpu, mmio->reg) = I915_READ(mmio->reg); | |
329 | ||
330 | if (mmio->mask) { | |
331 | vgpu_vreg(vgpu, mmio->reg) &= ~(mmio->mask << 16); | |
332 | v = mmio->value | (mmio->mask << 16); | |
333 | } else | |
334 | v = mmio->value; | |
335 | ||
336 | I915_WRITE(mmio->reg, v); | |
337 | POSTING_READ(mmio->reg); | |
338 | ||
339 | gvt_dbg_render("restore reg %x old %x new %x\n", | |
340 | i915_mmio_reg_offset(mmio->reg), | |
341 | mmio->value, v); | |
342 | } | |
343 | } |