1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2020-2023 Intel Corporation
4 */
5
6 #include "ivpu_drv.h"
7 #include "ivpu_fw.h"
8 #include "ivpu_hw_37xx_reg.h"
9 #include "ivpu_hw_reg_io.h"
10 #include "ivpu_hw.h"
11 #include "ivpu_ipc.h"
12 #include "ivpu_mmu.h"
13 #include "ivpu_pm.h"
14
15 #define TILE_FUSE_ENABLE_BOTH 0x0
16 #define TILE_SKU_BOTH_MTL 0x3630
17
18 /* Work point configuration values */
19 #define CONFIG_1_TILE 0x01
20 #define CONFIG_2_TILE 0x02
21 #define PLL_RATIO_5_3 0x01
22 #define PLL_RATIO_4_3 0x02
23 #define WP_CONFIG(tile, ratio) (((tile) << 8) | (ratio))
24 #define WP_CONFIG_1_TILE_5_3_RATIO WP_CONFIG(CONFIG_1_TILE, PLL_RATIO_5_3)
25 #define WP_CONFIG_1_TILE_4_3_RATIO WP_CONFIG(CONFIG_1_TILE, PLL_RATIO_4_3)
26 #define WP_CONFIG_2_TILE_5_3_RATIO WP_CONFIG(CONFIG_2_TILE, PLL_RATIO_5_3)
27 #define WP_CONFIG_2_TILE_4_3_RATIO WP_CONFIG(CONFIG_2_TILE, PLL_RATIO_4_3)
28 #define WP_CONFIG_0_TILE_PLL_OFF WP_CONFIG(0, 0)
29
30 #define PLL_REF_CLK_FREQ (50 * 1000000)
31 #define PLL_SIMULATION_FREQ (10 * 1000000)
32 #define PLL_DEFAULT_EPP_VALUE 0x80
33
34 #define TIM_SAFE_ENABLE 0xf1d0dead
35 #define TIM_WATCHDOG_RESET_VALUE 0xffffffff
36
37 #define TIMEOUT_US (150 * USEC_PER_MSEC)
38 #define PWR_ISLAND_STATUS_TIMEOUT_US (5 * USEC_PER_MSEC)
39 #define PLL_TIMEOUT_US (1500 * USEC_PER_MSEC)
40 #define IDLE_TIMEOUT_US (500 * USEC_PER_MSEC)
41
42 #define ICB_0_IRQ_MASK ((REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, HOST_IPC_FIFO_INT)) | \
43 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_0_INT)) | \
44 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_1_INT)) | \
45 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_2_INT)) | \
46 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT)) | \
47 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT)) | \
48 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT)))
49
50 #define ICB_1_IRQ_MASK ((REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_2_INT)) | \
51 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_3_INT)) | \
52 (REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_4_INT)))
53
54 #define ICB_0_1_IRQ_MASK ((((u64)ICB_1_IRQ_MASK) << 32) | ICB_0_IRQ_MASK)
55
56 #define BUTTRESS_IRQ_MASK ((REG_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE)) | \
57 (REG_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, ATS_ERR)) | \
58 (REG_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, UFI_ERR)))
59
60 #define BUTTRESS_IRQ_ENABLE_MASK ((u32)~BUTTRESS_IRQ_MASK)
61 #define BUTTRESS_IRQ_DISABLE_MASK ((u32)-1)
62
63 #define ITF_FIREWALL_VIOLATION_MASK ((REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, CSS_ROM_CMX)) | \
64 (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, CSS_DBG)) | \
65 (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, CSS_CTRL)) | \
66 (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, DEC400)) | \
67 (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, MSS_NCE)) | \
68 (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, MSS_MBI)) | \
69 (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, MSS_MBI_CMX)))
70
ivpu_platform_to_str(u32 platform)71 static char *ivpu_platform_to_str(u32 platform)
72 {
73 switch (platform) {
74 case IVPU_PLATFORM_SILICON:
75 return "IVPU_PLATFORM_SILICON";
76 case IVPU_PLATFORM_SIMICS:
77 return "IVPU_PLATFORM_SIMICS";
78 case IVPU_PLATFORM_FPGA:
79 return "IVPU_PLATFORM_FPGA";
80 default:
81 return "Invalid platform";
82 }
83 }
84
ivpu_hw_read_platform(struct ivpu_device * vdev)85 static void ivpu_hw_read_platform(struct ivpu_device *vdev)
86 {
87 u32 gen_ctrl = REGV_RD32(VPU_37XX_HOST_SS_GEN_CTRL);
88 u32 platform = REG_GET_FLD(VPU_37XX_HOST_SS_GEN_CTRL, PS, gen_ctrl);
89
90 if (platform == IVPU_PLATFORM_SIMICS || platform == IVPU_PLATFORM_FPGA)
91 vdev->platform = platform;
92 else
93 vdev->platform = IVPU_PLATFORM_SILICON;
94
95 ivpu_dbg(vdev, MISC, "Platform type: %s (%d)\n",
96 ivpu_platform_to_str(vdev->platform), vdev->platform);
97 }
98
ivpu_hw_wa_init(struct ivpu_device * vdev)99 static void ivpu_hw_wa_init(struct ivpu_device *vdev)
100 {
101 vdev->wa.punit_disabled = ivpu_is_fpga(vdev);
102 vdev->wa.clear_runtime_mem = false;
103 vdev->wa.d3hot_after_power_off = true;
104
105 if (ivpu_device_id(vdev) == PCI_DEVICE_ID_MTL && ivpu_revision(vdev) < 4)
106 vdev->wa.interrupt_clear_with_0 = true;
107 }
108
ivpu_hw_timeouts_init(struct ivpu_device * vdev)109 static void ivpu_hw_timeouts_init(struct ivpu_device *vdev)
110 {
111 if (ivpu_is_simics(vdev) || ivpu_is_fpga(vdev)) {
112 vdev->timeout.boot = 100000;
113 vdev->timeout.jsm = 50000;
114 vdev->timeout.tdr = 2000000;
115 vdev->timeout.reschedule_suspend = 1000;
116 } else {
117 vdev->timeout.boot = 1000;
118 vdev->timeout.jsm = 500;
119 vdev->timeout.tdr = 2000;
120 vdev->timeout.reschedule_suspend = 10;
121 }
122 }
123
ivpu_pll_wait_for_cmd_send(struct ivpu_device * vdev)124 static int ivpu_pll_wait_for_cmd_send(struct ivpu_device *vdev)
125 {
126 return REGB_POLL_FLD(VPU_37XX_BUTTRESS_WP_REQ_CMD, SEND, 0, PLL_TIMEOUT_US);
127 }
128
129 /* Send KMD initiated workpoint change */
ivpu_pll_cmd_send(struct ivpu_device * vdev,u16 min_ratio,u16 max_ratio,u16 target_ratio,u16 config)130 static int ivpu_pll_cmd_send(struct ivpu_device *vdev, u16 min_ratio, u16 max_ratio,
131 u16 target_ratio, u16 config)
132 {
133 int ret;
134 u32 val;
135
136 ret = ivpu_pll_wait_for_cmd_send(vdev);
137 if (ret) {
138 ivpu_err(vdev, "Failed to sync before WP request: %d\n", ret);
139 return ret;
140 }
141
142 val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0);
143 val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0, MIN_RATIO, min_ratio, val);
144 val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0, MAX_RATIO, max_ratio, val);
145 REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0, val);
146
147 val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1);
148 val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1, TARGET_RATIO, target_ratio, val);
149 val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1, EPP, PLL_DEFAULT_EPP_VALUE, val);
150 REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1, val);
151
152 val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD2);
153 val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD2, CONFIG, config, val);
154 REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD2, val);
155
156 val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_CMD);
157 val = REG_SET_FLD(VPU_37XX_BUTTRESS_WP_REQ_CMD, SEND, val);
158 REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_CMD, val);
159
160 ret = ivpu_pll_wait_for_cmd_send(vdev);
161 if (ret)
162 ivpu_err(vdev, "Failed to sync after WP request: %d\n", ret);
163
164 return ret;
165 }
166
ivpu_pll_wait_for_lock(struct ivpu_device * vdev,bool enable)167 static int ivpu_pll_wait_for_lock(struct ivpu_device *vdev, bool enable)
168 {
169 u32 exp_val = enable ? 0x1 : 0x0;
170
171 if (IVPU_WA(punit_disabled))
172 return 0;
173
174 return REGB_POLL_FLD(VPU_37XX_BUTTRESS_PLL_STATUS, LOCK, exp_val, PLL_TIMEOUT_US);
175 }
176
ivpu_pll_wait_for_status_ready(struct ivpu_device * vdev)177 static int ivpu_pll_wait_for_status_ready(struct ivpu_device *vdev)
178 {
179 if (IVPU_WA(punit_disabled))
180 return 0;
181
182 return REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, READY, 1, PLL_TIMEOUT_US);
183 }
184
ivpu_pll_init_frequency_ratios(struct ivpu_device * vdev)185 static void ivpu_pll_init_frequency_ratios(struct ivpu_device *vdev)
186 {
187 struct ivpu_hw_info *hw = vdev->hw;
188 u8 fuse_min_ratio, fuse_max_ratio, fuse_pn_ratio;
189 u32 fmin_fuse, fmax_fuse;
190
191 fmin_fuse = REGB_RD32(VPU_37XX_BUTTRESS_FMIN_FUSE);
192 fuse_min_ratio = REG_GET_FLD(VPU_37XX_BUTTRESS_FMIN_FUSE, MIN_RATIO, fmin_fuse);
193 fuse_pn_ratio = REG_GET_FLD(VPU_37XX_BUTTRESS_FMIN_FUSE, PN_RATIO, fmin_fuse);
194
195 fmax_fuse = REGB_RD32(VPU_37XX_BUTTRESS_FMAX_FUSE);
196 fuse_max_ratio = REG_GET_FLD(VPU_37XX_BUTTRESS_FMAX_FUSE, MAX_RATIO, fmax_fuse);
197
198 hw->pll.min_ratio = clamp_t(u8, ivpu_pll_min_ratio, fuse_min_ratio, fuse_max_ratio);
199 hw->pll.max_ratio = clamp_t(u8, ivpu_pll_max_ratio, hw->pll.min_ratio, fuse_max_ratio);
200 hw->pll.pn_ratio = clamp_t(u8, fuse_pn_ratio, hw->pll.min_ratio, hw->pll.max_ratio);
201 }
202
ivpu_hw_37xx_wait_for_vpuip_bar(struct ivpu_device * vdev)203 static int ivpu_hw_37xx_wait_for_vpuip_bar(struct ivpu_device *vdev)
204 {
205 return REGV_POLL_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, AON, 0, 100);
206 }
207
ivpu_pll_drive(struct ivpu_device * vdev,bool enable)208 static int ivpu_pll_drive(struct ivpu_device *vdev, bool enable)
209 {
210 struct ivpu_hw_info *hw = vdev->hw;
211 u16 target_ratio;
212 u16 config;
213 int ret;
214
215 if (IVPU_WA(punit_disabled)) {
216 ivpu_dbg(vdev, PM, "Skipping PLL request on %s\n",
217 ivpu_platform_to_str(vdev->platform));
218 return 0;
219 }
220
221 if (enable) {
222 target_ratio = hw->pll.pn_ratio;
223 config = hw->config;
224 } else {
225 target_ratio = 0;
226 config = 0;
227 }
228
229 ivpu_dbg(vdev, PM, "PLL workpoint request: config 0x%04x pll ratio 0x%x\n",
230 config, target_ratio);
231
232 ret = ivpu_pll_cmd_send(vdev, hw->pll.min_ratio, hw->pll.max_ratio, target_ratio, config);
233 if (ret) {
234 ivpu_err(vdev, "Failed to send PLL workpoint request: %d\n", ret);
235 return ret;
236 }
237
238 ret = ivpu_pll_wait_for_lock(vdev, enable);
239 if (ret) {
240 ivpu_err(vdev, "Timed out waiting for PLL lock\n");
241 return ret;
242 }
243
244 if (enable) {
245 ret = ivpu_pll_wait_for_status_ready(vdev);
246 if (ret) {
247 ivpu_err(vdev, "Timed out waiting for PLL ready status\n");
248 return ret;
249 }
250
251 ret = ivpu_hw_37xx_wait_for_vpuip_bar(vdev);
252 if (ret) {
253 ivpu_err(vdev, "Timed out waiting for VPUIP bar\n");
254 return ret;
255 }
256 }
257
258 return 0;
259 }
260
ivpu_pll_enable(struct ivpu_device * vdev)261 static int ivpu_pll_enable(struct ivpu_device *vdev)
262 {
263 return ivpu_pll_drive(vdev, true);
264 }
265
ivpu_pll_disable(struct ivpu_device * vdev)266 static int ivpu_pll_disable(struct ivpu_device *vdev)
267 {
268 return ivpu_pll_drive(vdev, false);
269 }
270
ivpu_boot_host_ss_rst_clr_assert(struct ivpu_device * vdev)271 static void ivpu_boot_host_ss_rst_clr_assert(struct ivpu_device *vdev)
272 {
273 u32 val = 0;
274
275 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, TOP_NOC, val);
276 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, DSS_MAS, val);
277 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, MSS_MAS, val);
278
279 REGV_WR32(VPU_37XX_HOST_SS_CPR_RST_CLR, val);
280 }
281
ivpu_boot_host_ss_rst_drive(struct ivpu_device * vdev,bool enable)282 static void ivpu_boot_host_ss_rst_drive(struct ivpu_device *vdev, bool enable)
283 {
284 u32 val = REGV_RD32(VPU_37XX_HOST_SS_CPR_RST_SET);
285
286 if (enable) {
287 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, TOP_NOC, val);
288 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, DSS_MAS, val);
289 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, MSS_MAS, val);
290 } else {
291 val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, TOP_NOC, val);
292 val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, DSS_MAS, val);
293 val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, MSS_MAS, val);
294 }
295
296 REGV_WR32(VPU_37XX_HOST_SS_CPR_RST_SET, val);
297 }
298
ivpu_boot_host_ss_clk_drive(struct ivpu_device * vdev,bool enable)299 static void ivpu_boot_host_ss_clk_drive(struct ivpu_device *vdev, bool enable)
300 {
301 u32 val = REGV_RD32(VPU_37XX_HOST_SS_CPR_CLK_SET);
302
303 if (enable) {
304 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, TOP_NOC, val);
305 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, DSS_MAS, val);
306 val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, MSS_MAS, val);
307 } else {
308 val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, TOP_NOC, val);
309 val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, DSS_MAS, val);
310 val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, MSS_MAS, val);
311 }
312
313 REGV_WR32(VPU_37XX_HOST_SS_CPR_CLK_SET, val);
314 }
315
ivpu_boot_noc_qreqn_check(struct ivpu_device * vdev,u32 exp_val)316 static int ivpu_boot_noc_qreqn_check(struct ivpu_device *vdev, u32 exp_val)
317 {
318 u32 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QREQN);
319
320 if (!REG_TEST_FLD_NUM(VPU_37XX_HOST_SS_NOC_QREQN, TOP_SOCMMIO, exp_val, val))
321 return -EIO;
322
323 return 0;
324 }
325
ivpu_boot_noc_qacceptn_check(struct ivpu_device * vdev,u32 exp_val)326 static int ivpu_boot_noc_qacceptn_check(struct ivpu_device *vdev, u32 exp_val)
327 {
328 u32 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QACCEPTN);
329
330 if (!REG_TEST_FLD_NUM(VPU_37XX_HOST_SS_NOC_QACCEPTN, TOP_SOCMMIO, exp_val, val))
331 return -EIO;
332
333 return 0;
334 }
335
ivpu_boot_noc_qdeny_check(struct ivpu_device * vdev,u32 exp_val)336 static int ivpu_boot_noc_qdeny_check(struct ivpu_device *vdev, u32 exp_val)
337 {
338 u32 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QDENY);
339
340 if (!REG_TEST_FLD_NUM(VPU_37XX_HOST_SS_NOC_QDENY, TOP_SOCMMIO, exp_val, val))
341 return -EIO;
342
343 return 0;
344 }
345
ivpu_boot_top_noc_qrenqn_check(struct ivpu_device * vdev,u32 exp_val)346 static int ivpu_boot_top_noc_qrenqn_check(struct ivpu_device *vdev, u32 exp_val)
347 {
348 u32 val = REGV_RD32(MTL_VPU_TOP_NOC_QREQN);
349
350 if (!REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QREQN, CPU_CTRL, exp_val, val) ||
351 !REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QREQN, HOSTIF_L2CACHE, exp_val, val))
352 return -EIO;
353
354 return 0;
355 }
356
ivpu_boot_top_noc_qacceptn_check(struct ivpu_device * vdev,u32 exp_val)357 static int ivpu_boot_top_noc_qacceptn_check(struct ivpu_device *vdev, u32 exp_val)
358 {
359 u32 val = REGV_RD32(MTL_VPU_TOP_NOC_QACCEPTN);
360
361 if (!REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QACCEPTN, CPU_CTRL, exp_val, val) ||
362 !REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QACCEPTN, HOSTIF_L2CACHE, exp_val, val))
363 return -EIO;
364
365 return 0;
366 }
367
ivpu_boot_top_noc_qdeny_check(struct ivpu_device * vdev,u32 exp_val)368 static int ivpu_boot_top_noc_qdeny_check(struct ivpu_device *vdev, u32 exp_val)
369 {
370 u32 val = REGV_RD32(MTL_VPU_TOP_NOC_QDENY);
371
372 if (!REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QDENY, CPU_CTRL, exp_val, val) ||
373 !REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QDENY, HOSTIF_L2CACHE, exp_val, val))
374 return -EIO;
375
376 return 0;
377 }
378
ivpu_boot_host_ss_configure(struct ivpu_device * vdev)379 static int ivpu_boot_host_ss_configure(struct ivpu_device *vdev)
380 {
381 ivpu_boot_host_ss_rst_clr_assert(vdev);
382
383 return ivpu_boot_noc_qreqn_check(vdev, 0x0);
384 }
385
ivpu_boot_vpu_idle_gen_disable(struct ivpu_device * vdev)386 static void ivpu_boot_vpu_idle_gen_disable(struct ivpu_device *vdev)
387 {
388 REGV_WR32(VPU_37XX_HOST_SS_AON_VPU_IDLE_GEN, 0x0);
389 }
390
ivpu_boot_host_ss_axi_drive(struct ivpu_device * vdev,bool enable)391 static int ivpu_boot_host_ss_axi_drive(struct ivpu_device *vdev, bool enable)
392 {
393 int ret;
394 u32 val;
395
396 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QREQN);
397 if (enable)
398 val = REG_SET_FLD(VPU_37XX_HOST_SS_NOC_QREQN, TOP_SOCMMIO, val);
399 else
400 val = REG_CLR_FLD(VPU_37XX_HOST_SS_NOC_QREQN, TOP_SOCMMIO, val);
401 REGV_WR32(VPU_37XX_HOST_SS_NOC_QREQN, val);
402
403 ret = ivpu_boot_noc_qacceptn_check(vdev, enable ? 0x1 : 0x0);
404 if (ret) {
405 ivpu_err(vdev, "Failed qacceptn check: %d\n", ret);
406 return ret;
407 }
408
409 ret = ivpu_boot_noc_qdeny_check(vdev, 0x0);
410 if (ret)
411 ivpu_err(vdev, "Failed qdeny check: %d\n", ret);
412
413 return ret;
414 }
415
ivpu_boot_host_ss_axi_enable(struct ivpu_device * vdev)416 static int ivpu_boot_host_ss_axi_enable(struct ivpu_device *vdev)
417 {
418 return ivpu_boot_host_ss_axi_drive(vdev, true);
419 }
420
ivpu_boot_host_ss_top_noc_drive(struct ivpu_device * vdev,bool enable)421 static int ivpu_boot_host_ss_top_noc_drive(struct ivpu_device *vdev, bool enable)
422 {
423 int ret;
424 u32 val;
425
426 val = REGV_RD32(MTL_VPU_TOP_NOC_QREQN);
427 if (enable) {
428 val = REG_SET_FLD(MTL_VPU_TOP_NOC_QREQN, CPU_CTRL, val);
429 val = REG_SET_FLD(MTL_VPU_TOP_NOC_QREQN, HOSTIF_L2CACHE, val);
430 } else {
431 val = REG_CLR_FLD(MTL_VPU_TOP_NOC_QREQN, CPU_CTRL, val);
432 val = REG_CLR_FLD(MTL_VPU_TOP_NOC_QREQN, HOSTIF_L2CACHE, val);
433 }
434 REGV_WR32(MTL_VPU_TOP_NOC_QREQN, val);
435
436 ret = ivpu_boot_top_noc_qacceptn_check(vdev, enable ? 0x1 : 0x0);
437 if (ret) {
438 ivpu_err(vdev, "Failed qacceptn check: %d\n", ret);
439 return ret;
440 }
441
442 ret = ivpu_boot_top_noc_qdeny_check(vdev, 0x0);
443 if (ret)
444 ivpu_err(vdev, "Failed qdeny check: %d\n", ret);
445
446 return ret;
447 }
448
ivpu_boot_host_ss_top_noc_enable(struct ivpu_device * vdev)449 static int ivpu_boot_host_ss_top_noc_enable(struct ivpu_device *vdev)
450 {
451 return ivpu_boot_host_ss_top_noc_drive(vdev, true);
452 }
453
ivpu_boot_pwr_island_trickle_drive(struct ivpu_device * vdev,bool enable)454 static void ivpu_boot_pwr_island_trickle_drive(struct ivpu_device *vdev, bool enable)
455 {
456 u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0);
457
458 if (enable)
459 val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, MSS_CPU, val);
460 else
461 val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, MSS_CPU, val);
462
463 REGV_WR32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, val);
464 }
465
ivpu_boot_pwr_island_drive(struct ivpu_device * vdev,bool enable)466 static void ivpu_boot_pwr_island_drive(struct ivpu_device *vdev, bool enable)
467 {
468 u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0);
469
470 if (enable)
471 val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0, MSS_CPU, val);
472 else
473 val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0, MSS_CPU, val);
474
475 REGV_WR32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0, val);
476 }
477
ivpu_boot_wait_for_pwr_island_status(struct ivpu_device * vdev,u32 exp_val)478 static int ivpu_boot_wait_for_pwr_island_status(struct ivpu_device *vdev, u32 exp_val)
479 {
480 /* FPGA model (UPF) is not power aware, skipped Power Island polling */
481 if (ivpu_is_fpga(vdev))
482 return 0;
483
484 return REGV_POLL_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_STATUS0, MSS_CPU,
485 exp_val, PWR_ISLAND_STATUS_TIMEOUT_US);
486 }
487
ivpu_boot_pwr_island_isolation_drive(struct ivpu_device * vdev,bool enable)488 static void ivpu_boot_pwr_island_isolation_drive(struct ivpu_device *vdev, bool enable)
489 {
490 u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0);
491
492 if (enable)
493 val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0, MSS_CPU, val);
494 else
495 val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0, MSS_CPU, val);
496
497 REGV_WR32(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0, val);
498 }
499
ivpu_boot_dpu_active_drive(struct ivpu_device * vdev,bool enable)500 static void ivpu_boot_dpu_active_drive(struct ivpu_device *vdev, bool enable)
501 {
502 u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_DPU_ACTIVE);
503
504 if (enable)
505 val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_DPU_ACTIVE, DPU_ACTIVE, val);
506 else
507 val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_DPU_ACTIVE, DPU_ACTIVE, val);
508
509 REGV_WR32(VPU_37XX_HOST_SS_AON_DPU_ACTIVE, val);
510 }
511
ivpu_boot_pwr_domain_enable(struct ivpu_device * vdev)512 static int ivpu_boot_pwr_domain_enable(struct ivpu_device *vdev)
513 {
514 int ret;
515
516 ivpu_boot_pwr_island_trickle_drive(vdev, true);
517 ivpu_boot_pwr_island_drive(vdev, true);
518
519 ret = ivpu_boot_wait_for_pwr_island_status(vdev, 0x1);
520 if (ret) {
521 ivpu_err(vdev, "Timed out waiting for power island status\n");
522 return ret;
523 }
524
525 ret = ivpu_boot_top_noc_qrenqn_check(vdev, 0x0);
526 if (ret) {
527 ivpu_err(vdev, "Failed qrenqn check %d\n", ret);
528 return ret;
529 }
530
531 ivpu_boot_host_ss_clk_drive(vdev, true);
532 ivpu_boot_pwr_island_isolation_drive(vdev, false);
533 ivpu_boot_host_ss_rst_drive(vdev, true);
534 ivpu_boot_dpu_active_drive(vdev, true);
535
536 return ret;
537 }
538
ivpu_boot_no_snoop_enable(struct ivpu_device * vdev)539 static void ivpu_boot_no_snoop_enable(struct ivpu_device *vdev)
540 {
541 u32 val = REGV_RD32(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES);
542
543 val = REG_SET_FLD(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, NOSNOOP_OVERRIDE_EN, val);
544 val = REG_SET_FLD(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, AW_NOSNOOP_OVERRIDE, val);
545 val = REG_SET_FLD(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, AR_NOSNOOP_OVERRIDE, val);
546
547 REGV_WR32(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, val);
548 }
549
ivpu_boot_tbu_mmu_enable(struct ivpu_device * vdev)550 static void ivpu_boot_tbu_mmu_enable(struct ivpu_device *vdev)
551 {
552 u32 val = REGV_RD32(VPU_37XX_HOST_IF_TBU_MMUSSIDV);
553
554 val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU0_AWMMUSSIDV, val);
555 val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU0_ARMMUSSIDV, val);
556 val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU2_AWMMUSSIDV, val);
557 val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU2_ARMMUSSIDV, val);
558
559 REGV_WR32(VPU_37XX_HOST_IF_TBU_MMUSSIDV, val);
560 }
561
ivpu_boot_soc_cpu_boot(struct ivpu_device * vdev)562 static void ivpu_boot_soc_cpu_boot(struct ivpu_device *vdev)
563 {
564 u32 val;
565
566 val = REGV_RD32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC);
567 val = REG_SET_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RSTRUN0, val);
568
569 val = REG_CLR_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RSTVEC, val);
570 REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
571
572 val = REG_SET_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
573 REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
574
575 val = REG_CLR_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
576 REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
577
578 val = vdev->fw->entry_point >> 9;
579 REGV_WR32(VPU_37XX_HOST_SS_LOADING_ADDRESS_LO, val);
580
581 val = REG_SET_FLD(VPU_37XX_HOST_SS_LOADING_ADDRESS_LO, DONE, val);
582 REGV_WR32(VPU_37XX_HOST_SS_LOADING_ADDRESS_LO, val);
583
584 ivpu_dbg(vdev, PM, "Booting firmware, mode: %s\n",
585 vdev->fw->entry_point == vdev->fw->cold_boot_entry_point ? "cold boot" : "resume");
586 }
587
ivpu_boot_d0i3_drive(struct ivpu_device * vdev,bool enable)588 static int ivpu_boot_d0i3_drive(struct ivpu_device *vdev, bool enable)
589 {
590 int ret;
591 u32 val;
592
593 ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
594 if (ret) {
595 ivpu_err(vdev, "Failed to sync before D0i3 transition: %d\n", ret);
596 return ret;
597 }
598
599 val = REGB_RD32(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL);
600 if (enable)
601 val = REG_SET_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, I3, val);
602 else
603 val = REG_CLR_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, I3, val);
604 REGB_WR32(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, val);
605
606 ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
607 if (ret)
608 ivpu_err(vdev, "Failed to sync after D0i3 transition: %d\n", ret);
609
610 return ret;
611 }
612
ivpu_hw_37xx_info_init(struct ivpu_device * vdev)613 static int ivpu_hw_37xx_info_init(struct ivpu_device *vdev)
614 {
615 struct ivpu_hw_info *hw = vdev->hw;
616
617 hw->tile_fuse = TILE_FUSE_ENABLE_BOTH;
618 hw->sku = TILE_SKU_BOTH_MTL;
619 hw->config = WP_CONFIG_2_TILE_4_3_RATIO;
620
621 ivpu_pll_init_frequency_ratios(vdev);
622
623 ivpu_hw_init_range(&hw->ranges.global, 0x80000000, SZ_512M);
624 ivpu_hw_init_range(&hw->ranges.user, 0xc0000000, 255 * SZ_1M);
625 ivpu_hw_init_range(&hw->ranges.shave, 0x180000000, SZ_2G);
626 ivpu_hw_init_range(&hw->ranges.dma, 0x200000000, SZ_8G);
627
628 return 0;
629 }
630
ivpu_hw_37xx_reset(struct ivpu_device * vdev)631 static int ivpu_hw_37xx_reset(struct ivpu_device *vdev)
632 {
633 int ret;
634 u32 val;
635
636 if (IVPU_WA(punit_disabled))
637 return 0;
638
639 ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
640 if (ret) {
641 ivpu_err(vdev, "Timed out waiting for TRIGGER bit\n");
642 return ret;
643 }
644
645 val = REGB_RD32(VPU_37XX_BUTTRESS_VPU_IP_RESET);
646 val = REG_SET_FLD(VPU_37XX_BUTTRESS_VPU_IP_RESET, TRIGGER, val);
647 REGB_WR32(VPU_37XX_BUTTRESS_VPU_IP_RESET, val);
648
649 ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
650 if (ret)
651 ivpu_err(vdev, "Timed out waiting for RESET completion\n");
652
653 return ret;
654 }
655
ivpu_hw_37xx_d0i3_enable(struct ivpu_device * vdev)656 static int ivpu_hw_37xx_d0i3_enable(struct ivpu_device *vdev)
657 {
658 int ret;
659
660 ret = ivpu_boot_d0i3_drive(vdev, true);
661 if (ret)
662 ivpu_err(vdev, "Failed to enable D0i3: %d\n", ret);
663
664 udelay(5); /* VPU requires 5 us to complete the transition */
665
666 return ret;
667 }
668
ivpu_hw_37xx_d0i3_disable(struct ivpu_device * vdev)669 static int ivpu_hw_37xx_d0i3_disable(struct ivpu_device *vdev)
670 {
671 int ret;
672
673 ret = ivpu_boot_d0i3_drive(vdev, false);
674 if (ret)
675 ivpu_err(vdev, "Failed to disable D0i3: %d\n", ret);
676
677 return ret;
678 }
679
ivpu_hw_37xx_power_up(struct ivpu_device * vdev)680 static int ivpu_hw_37xx_power_up(struct ivpu_device *vdev)
681 {
682 int ret;
683
684 ivpu_hw_read_platform(vdev);
685 ivpu_hw_wa_init(vdev);
686 ivpu_hw_timeouts_init(vdev);
687
688 ret = ivpu_hw_37xx_reset(vdev);
689 if (ret)
690 ivpu_warn(vdev, "Failed to reset HW: %d\n", ret);
691
692 ret = ivpu_hw_37xx_d0i3_disable(vdev);
693 if (ret)
694 ivpu_warn(vdev, "Failed to disable D0I3: %d\n", ret);
695
696 ret = ivpu_pll_enable(vdev);
697 if (ret) {
698 ivpu_err(vdev, "Failed to enable PLL: %d\n", ret);
699 return ret;
700 }
701
702 ret = ivpu_boot_host_ss_configure(vdev);
703 if (ret) {
704 ivpu_err(vdev, "Failed to configure host SS: %d\n", ret);
705 return ret;
706 }
707
708 /*
709 * The control circuitry for vpu_idle indication logic powers up active.
710 * To ensure unnecessary low power mode signal from LRT during bring up,
711 * KMD disables the circuitry prior to bringing up the Main Power island.
712 */
713 ivpu_boot_vpu_idle_gen_disable(vdev);
714
715 ret = ivpu_boot_pwr_domain_enable(vdev);
716 if (ret) {
717 ivpu_err(vdev, "Failed to enable power domain: %d\n", ret);
718 return ret;
719 }
720
721 ret = ivpu_boot_host_ss_axi_enable(vdev);
722 if (ret) {
723 ivpu_err(vdev, "Failed to enable AXI: %d\n", ret);
724 return ret;
725 }
726
727 ret = ivpu_boot_host_ss_top_noc_enable(vdev);
728 if (ret)
729 ivpu_err(vdev, "Failed to enable TOP NOC: %d\n", ret);
730
731 return ret;
732 }
733
ivpu_hw_37xx_boot_fw(struct ivpu_device * vdev)734 static int ivpu_hw_37xx_boot_fw(struct ivpu_device *vdev)
735 {
736 ivpu_boot_no_snoop_enable(vdev);
737 ivpu_boot_tbu_mmu_enable(vdev);
738 ivpu_boot_soc_cpu_boot(vdev);
739
740 return 0;
741 }
742
ivpu_hw_37xx_is_idle(struct ivpu_device * vdev)743 static bool ivpu_hw_37xx_is_idle(struct ivpu_device *vdev)
744 {
745 u32 val;
746
747 if (IVPU_WA(punit_disabled))
748 return true;
749
750 val = REGB_RD32(VPU_37XX_BUTTRESS_VPU_STATUS);
751 return REG_TEST_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, READY, val) &&
752 REG_TEST_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, IDLE, val);
753 }
754
ivpu_hw_37xx_power_down(struct ivpu_device * vdev)755 static int ivpu_hw_37xx_power_down(struct ivpu_device *vdev)
756 {
757 int ret = 0;
758
759 if (!ivpu_hw_37xx_is_idle(vdev) && ivpu_hw_37xx_reset(vdev))
760 ivpu_err(vdev, "Failed to reset the VPU\n");
761
762 if (ivpu_pll_disable(vdev)) {
763 ivpu_err(vdev, "Failed to disable PLL\n");
764 ret = -EIO;
765 }
766
767 if (ivpu_hw_37xx_d0i3_enable(vdev)) {
768 ivpu_err(vdev, "Failed to enter D0I3\n");
769 ret = -EIO;
770 }
771
772 return ret;
773 }
774
ivpu_hw_37xx_wdt_disable(struct ivpu_device * vdev)775 static void ivpu_hw_37xx_wdt_disable(struct ivpu_device *vdev)
776 {
777 u32 val;
778
779 /* Enable writing and set non-zero WDT value */
780 REGV_WR32(MTL_VPU_CPU_SS_TIM_SAFE, TIM_SAFE_ENABLE);
781 REGV_WR32(MTL_VPU_CPU_SS_TIM_WATCHDOG, TIM_WATCHDOG_RESET_VALUE);
782
783 /* Enable writing and disable watchdog timer */
784 REGV_WR32(MTL_VPU_CPU_SS_TIM_SAFE, TIM_SAFE_ENABLE);
785 REGV_WR32(MTL_VPU_CPU_SS_TIM_WDOG_EN, 0);
786
787 /* Now clear the timeout interrupt */
788 val = REGV_RD32(MTL_VPU_CPU_SS_TIM_GEN_CONFIG);
789 val = REG_CLR_FLD(MTL_VPU_CPU_SS_TIM_GEN_CONFIG, WDOG_TO_INT_CLR, val);
790 REGV_WR32(MTL_VPU_CPU_SS_TIM_GEN_CONFIG, val);
791 }
792
ivpu_hw_37xx_pll_to_freq(u32 ratio,u32 config)793 static u32 ivpu_hw_37xx_pll_to_freq(u32 ratio, u32 config)
794 {
795 u32 pll_clock = PLL_REF_CLK_FREQ * ratio;
796 u32 cpu_clock;
797
798 if ((config & 0xff) == PLL_RATIO_4_3)
799 cpu_clock = pll_clock * 2 / 4;
800 else
801 cpu_clock = pll_clock * 2 / 5;
802
803 return cpu_clock;
804 }
805
806 /* Register indirect accesses */
ivpu_hw_37xx_reg_pll_freq_get(struct ivpu_device * vdev)807 static u32 ivpu_hw_37xx_reg_pll_freq_get(struct ivpu_device *vdev)
808 {
809 u32 pll_curr_ratio;
810
811 pll_curr_ratio = REGB_RD32(VPU_37XX_BUTTRESS_CURRENT_PLL);
812 pll_curr_ratio &= VPU_37XX_BUTTRESS_CURRENT_PLL_RATIO_MASK;
813
814 if (!ivpu_is_silicon(vdev))
815 return PLL_SIMULATION_FREQ;
816
817 return ivpu_hw_37xx_pll_to_freq(pll_curr_ratio, vdev->hw->config);
818 }
819
ivpu_hw_37xx_reg_telemetry_offset_get(struct ivpu_device * vdev)820 static u32 ivpu_hw_37xx_reg_telemetry_offset_get(struct ivpu_device *vdev)
821 {
822 return REGB_RD32(VPU_37XX_BUTTRESS_VPU_TELEMETRY_OFFSET);
823 }
824
ivpu_hw_37xx_reg_telemetry_size_get(struct ivpu_device * vdev)825 static u32 ivpu_hw_37xx_reg_telemetry_size_get(struct ivpu_device *vdev)
826 {
827 return REGB_RD32(VPU_37XX_BUTTRESS_VPU_TELEMETRY_SIZE);
828 }
829
ivpu_hw_37xx_reg_telemetry_enable_get(struct ivpu_device * vdev)830 static u32 ivpu_hw_37xx_reg_telemetry_enable_get(struct ivpu_device *vdev)
831 {
832 return REGB_RD32(VPU_37XX_BUTTRESS_VPU_TELEMETRY_ENABLE);
833 }
834
ivpu_hw_37xx_reg_db_set(struct ivpu_device * vdev,u32 db_id)835 static void ivpu_hw_37xx_reg_db_set(struct ivpu_device *vdev, u32 db_id)
836 {
837 u32 reg_stride = MTL_VPU_CPU_SS_DOORBELL_1 - MTL_VPU_CPU_SS_DOORBELL_0;
838 u32 val = REG_FLD(MTL_VPU_CPU_SS_DOORBELL_0, SET);
839
840 REGV_WR32I(MTL_VPU_CPU_SS_DOORBELL_0, reg_stride, db_id, val);
841 }
842
ivpu_hw_37xx_reg_ipc_rx_addr_get(struct ivpu_device * vdev)843 static u32 ivpu_hw_37xx_reg_ipc_rx_addr_get(struct ivpu_device *vdev)
844 {
845 return REGV_RD32(VPU_37XX_HOST_SS_TIM_IPC_FIFO_ATM);
846 }
847
ivpu_hw_37xx_reg_ipc_rx_count_get(struct ivpu_device * vdev)848 static u32 ivpu_hw_37xx_reg_ipc_rx_count_get(struct ivpu_device *vdev)
849 {
850 u32 count = REGV_RD32_SILENT(VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT);
851
852 return REG_GET_FLD(VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT, FILL_LEVEL, count);
853 }
854
ivpu_hw_37xx_reg_ipc_tx_set(struct ivpu_device * vdev,u32 vpu_addr)855 static void ivpu_hw_37xx_reg_ipc_tx_set(struct ivpu_device *vdev, u32 vpu_addr)
856 {
857 REGV_WR32(MTL_VPU_CPU_SS_TIM_IPC_FIFO, vpu_addr);
858 }
859
ivpu_hw_37xx_irq_clear(struct ivpu_device * vdev)860 static void ivpu_hw_37xx_irq_clear(struct ivpu_device *vdev)
861 {
862 REGV_WR64(VPU_37XX_HOST_SS_ICB_CLEAR_0, ICB_0_1_IRQ_MASK);
863 }
864
ivpu_hw_37xx_irq_enable(struct ivpu_device * vdev)865 static void ivpu_hw_37xx_irq_enable(struct ivpu_device *vdev)
866 {
867 REGV_WR32(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, ITF_FIREWALL_VIOLATION_MASK);
868 REGV_WR64(VPU_37XX_HOST_SS_ICB_ENABLE_0, ICB_0_1_IRQ_MASK);
869 REGB_WR32(VPU_37XX_BUTTRESS_LOCAL_INT_MASK, BUTTRESS_IRQ_ENABLE_MASK);
870 REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x0);
871 }
872
ivpu_hw_37xx_irq_disable(struct ivpu_device * vdev)873 static void ivpu_hw_37xx_irq_disable(struct ivpu_device *vdev)
874 {
875 REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x1);
876 REGB_WR32(VPU_37XX_BUTTRESS_LOCAL_INT_MASK, BUTTRESS_IRQ_DISABLE_MASK);
877 REGV_WR64(VPU_37XX_HOST_SS_ICB_ENABLE_0, 0x0ull);
878 REGV_WR32(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, 0x0);
879 }
880
ivpu_hw_37xx_irq_wdt_nce_handler(struct ivpu_device * vdev)881 static void ivpu_hw_37xx_irq_wdt_nce_handler(struct ivpu_device *vdev)
882 {
883 ivpu_err_ratelimited(vdev, "WDT NCE irq\n");
884
885 ivpu_pm_schedule_recovery(vdev);
886 }
887
ivpu_hw_37xx_irq_wdt_mss_handler(struct ivpu_device * vdev)888 static void ivpu_hw_37xx_irq_wdt_mss_handler(struct ivpu_device *vdev)
889 {
890 ivpu_err_ratelimited(vdev, "WDT MSS irq\n");
891
892 ivpu_hw_wdt_disable(vdev);
893 ivpu_pm_schedule_recovery(vdev);
894 }
895
ivpu_hw_37xx_irq_noc_firewall_handler(struct ivpu_device * vdev)896 static void ivpu_hw_37xx_irq_noc_firewall_handler(struct ivpu_device *vdev)
897 {
898 ivpu_err_ratelimited(vdev, "NOC Firewall irq\n");
899
900 ivpu_pm_schedule_recovery(vdev);
901 }
902
903 /* Handler for IRQs from VPU core (irqV) */
ivpu_hw_37xx_irqv_handler(struct ivpu_device * vdev,int irq)904 static u32 ivpu_hw_37xx_irqv_handler(struct ivpu_device *vdev, int irq)
905 {
906 u32 status = REGV_RD32(VPU_37XX_HOST_SS_ICB_STATUS_0) & ICB_0_IRQ_MASK;
907
908 REGV_WR32(VPU_37XX_HOST_SS_ICB_CLEAR_0, status);
909
910 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_0_INT, status))
911 ivpu_mmu_irq_evtq_handler(vdev);
912
913 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, HOST_IPC_FIFO_INT, status))
914 ivpu_ipc_irq_handler(vdev);
915
916 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_1_INT, status))
917 ivpu_dbg(vdev, IRQ, "MMU sync complete\n");
918
919 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_2_INT, status))
920 ivpu_mmu_irq_gerr_handler(vdev);
921
922 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT, status))
923 ivpu_hw_37xx_irq_wdt_mss_handler(vdev);
924
925 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT, status))
926 ivpu_hw_37xx_irq_wdt_nce_handler(vdev);
927
928 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT, status))
929 ivpu_hw_37xx_irq_noc_firewall_handler(vdev);
930
931 return status;
932 }
933
934 /* Handler for IRQs from Buttress core (irqB) */
ivpu_hw_37xx_irqb_handler(struct ivpu_device * vdev,int irq)935 static u32 ivpu_hw_37xx_irqb_handler(struct ivpu_device *vdev, int irq)
936 {
937 u32 status = REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
938 bool schedule_recovery = false;
939
940 if (status == 0)
941 return 0;
942
943 if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE, status))
944 ivpu_dbg(vdev, IRQ, "FREQ_CHANGE irq: %08x",
945 REGB_RD32(VPU_37XX_BUTTRESS_CURRENT_PLL));
946
947 if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, ATS_ERR, status)) {
948 ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(VPU_37XX_BUTTRESS_ATS_ERR_LOG_0));
949 REGB_WR32(VPU_37XX_BUTTRESS_ATS_ERR_CLEAR, 0x1);
950 schedule_recovery = true;
951 }
952
953 if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, UFI_ERR, status)) {
954 u32 ufi_log = REGB_RD32(VPU_37XX_BUTTRESS_UFI_ERR_LOG);
955
956 ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
957 ufi_log, REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, OPCODE, ufi_log),
958 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
959 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
960 REGB_WR32(VPU_37XX_BUTTRESS_UFI_ERR_CLEAR, 0x1);
961 schedule_recovery = true;
962 }
963
964 /* This must be done after interrupts are cleared at the source. */
965 if (IVPU_WA(interrupt_clear_with_0))
966 /*
967 * Writing 1 triggers an interrupt, so we can't perform read update write.
968 * Clear local interrupt status by writing 0 to all bits.
969 */
970 REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, 0x0);
971 else
972 REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, status);
973
974 if (schedule_recovery)
975 ivpu_pm_schedule_recovery(vdev);
976
977 return status;
978 }
979
ivpu_hw_37xx_irq_handler(int irq,void * ptr)980 static irqreturn_t ivpu_hw_37xx_irq_handler(int irq, void *ptr)
981 {
982 struct ivpu_device *vdev = ptr;
983 u32 ret_irqv, ret_irqb;
984
985 REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x1);
986
987 ret_irqv = ivpu_hw_37xx_irqv_handler(vdev, irq);
988 ret_irqb = ivpu_hw_37xx_irqb_handler(vdev, irq);
989
990 /* Re-enable global interrupts to re-trigger MSI for pending interrupts */
991 REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x0);
992
993 return IRQ_RETVAL(ret_irqb | ret_irqv);
994 }
995
ivpu_hw_37xx_diagnose_failure(struct ivpu_device * vdev)996 static void ivpu_hw_37xx_diagnose_failure(struct ivpu_device *vdev)
997 {
998 u32 irqv = REGV_RD32(VPU_37XX_HOST_SS_ICB_STATUS_0) & ICB_0_IRQ_MASK;
999 u32 irqb = REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
1000
1001 if (ivpu_hw_37xx_reg_ipc_rx_count_get(vdev))
1002 ivpu_err(vdev, "IPC FIFO queue not empty, missed IPC IRQ");
1003
1004 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT, irqv))
1005 ivpu_err(vdev, "WDT MSS timeout detected\n");
1006
1007 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT, irqv))
1008 ivpu_err(vdev, "WDT NCE timeout detected\n");
1009
1010 if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT, irqv))
1011 ivpu_err(vdev, "NOC Firewall irq detected\n");
1012
1013 if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, ATS_ERR, irqb))
1014 ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(VPU_37XX_BUTTRESS_ATS_ERR_LOG_0));
1015
1016 if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, UFI_ERR, irqb)) {
1017 u32 ufi_log = REGB_RD32(VPU_37XX_BUTTRESS_UFI_ERR_LOG);
1018
1019 ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
1020 ufi_log, REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, OPCODE, ufi_log),
1021 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
1022 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
1023 }
1024 }
1025
1026 const struct ivpu_hw_ops ivpu_hw_37xx_ops = {
1027 .info_init = ivpu_hw_37xx_info_init,
1028 .power_up = ivpu_hw_37xx_power_up,
1029 .is_idle = ivpu_hw_37xx_is_idle,
1030 .power_down = ivpu_hw_37xx_power_down,
1031 .reset = ivpu_hw_37xx_reset,
1032 .boot_fw = ivpu_hw_37xx_boot_fw,
1033 .wdt_disable = ivpu_hw_37xx_wdt_disable,
1034 .diagnose_failure = ivpu_hw_37xx_diagnose_failure,
1035 .reg_pll_freq_get = ivpu_hw_37xx_reg_pll_freq_get,
1036 .reg_telemetry_offset_get = ivpu_hw_37xx_reg_telemetry_offset_get,
1037 .reg_telemetry_size_get = ivpu_hw_37xx_reg_telemetry_size_get,
1038 .reg_telemetry_enable_get = ivpu_hw_37xx_reg_telemetry_enable_get,
1039 .reg_db_set = ivpu_hw_37xx_reg_db_set,
1040 .reg_ipc_rx_addr_get = ivpu_hw_37xx_reg_ipc_rx_addr_get,
1041 .reg_ipc_rx_count_get = ivpu_hw_37xx_reg_ipc_rx_count_get,
1042 .reg_ipc_tx_set = ivpu_hw_37xx_reg_ipc_tx_set,
1043 .irq_clear = ivpu_hw_37xx_irq_clear,
1044 .irq_enable = ivpu_hw_37xx_irq_enable,
1045 .irq_disable = ivpu_hw_37xx_irq_disable,
1046 .irq_handler = ivpu_hw_37xx_irq_handler,
1047 };
1048