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_PROF_CLK_FREQ	     (38400 * 1000)
33 #define PLL_DEFAULT_EPP_VALUE	     0x80
34 
35 #define TIM_SAFE_ENABLE		     0xf1d0dead
36 #define TIM_WATCHDOG_RESET_VALUE     0xffffffff
37 
38 #define TIMEOUT_US		     (150 * USEC_PER_MSEC)
39 #define PWR_ISLAND_STATUS_TIMEOUT_US (5 * USEC_PER_MSEC)
40 #define PLL_TIMEOUT_US		     (1500 * USEC_PER_MSEC)
41 #define IDLE_TIMEOUT_US		     (5 * USEC_PER_MSEC)
42 
43 #define ICB_0_IRQ_MASK ((REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, HOST_IPC_FIFO_INT)) | \
44 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_0_INT)) | \
45 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_1_INT)) | \
46 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_2_INT)) | \
47 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT)) | \
48 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT)) | \
49 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT)))
50 
51 #define ICB_1_IRQ_MASK ((REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_2_INT)) | \
52 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_3_INT)) | \
53 			(REG_FLD(VPU_37XX_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_4_INT)))
54 
55 #define ICB_0_1_IRQ_MASK ((((u64)ICB_1_IRQ_MASK) << 32) | ICB_0_IRQ_MASK)
56 
57 #define BUTTRESS_IRQ_MASK ((REG_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, ATS_ERR)) | \
58 			   (REG_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, UFI_ERR)))
59 
60 #define BUTTRESS_ALL_IRQ_MASK (BUTTRESS_IRQ_MASK | \
61 			       (REG_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE)))
62 
63 #define BUTTRESS_IRQ_ENABLE_MASK ((u32)~BUTTRESS_IRQ_MASK)
64 #define BUTTRESS_IRQ_DISABLE_MASK ((u32)-1)
65 
66 #define ITF_FIREWALL_VIOLATION_MASK ((REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, CSS_ROM_CMX)) | \
67 				     (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, CSS_DBG)) | \
68 				     (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, CSS_CTRL)) | \
69 				     (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, DEC400)) | \
70 				     (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, MSS_NCE)) | \
71 				     (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, MSS_MBI)) | \
72 				     (REG_FLD(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, MSS_MBI_CMX)))
73 
ivpu_hw_wa_init(struct ivpu_device * vdev)74 static void ivpu_hw_wa_init(struct ivpu_device *vdev)
75 {
76 	vdev->wa.punit_disabled = false;
77 	vdev->wa.clear_runtime_mem = false;
78 	vdev->wa.d3hot_after_power_off = true;
79 
80 	REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, BUTTRESS_ALL_IRQ_MASK);
81 	if (REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) == BUTTRESS_ALL_IRQ_MASK) {
82 		/* Writing 1s does not clear the interrupt status register */
83 		vdev->wa.interrupt_clear_with_0 = true;
84 		REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, 0x0);
85 	}
86 
87 	IVPU_PRINT_WA(punit_disabled);
88 	IVPU_PRINT_WA(clear_runtime_mem);
89 	IVPU_PRINT_WA(d3hot_after_power_off);
90 	IVPU_PRINT_WA(interrupt_clear_with_0);
91 }
92 
ivpu_hw_timeouts_init(struct ivpu_device * vdev)93 static void ivpu_hw_timeouts_init(struct ivpu_device *vdev)
94 {
95 	vdev->timeout.boot = 1000;
96 	vdev->timeout.jsm = 500;
97 	vdev->timeout.tdr = 2000;
98 	vdev->timeout.reschedule_suspend = 10;
99 	vdev->timeout.autosuspend = 10;
100 	vdev->timeout.d0i3_entry_msg = 5;
101 }
102 
ivpu_pll_wait_for_cmd_send(struct ivpu_device * vdev)103 static int ivpu_pll_wait_for_cmd_send(struct ivpu_device *vdev)
104 {
105 	return REGB_POLL_FLD(VPU_37XX_BUTTRESS_WP_REQ_CMD, SEND, 0, PLL_TIMEOUT_US);
106 }
107 
108 /* Send KMD initiated workpoint change */
ivpu_pll_cmd_send(struct ivpu_device * vdev,u16 min_ratio,u16 max_ratio,u16 target_ratio,u16 config)109 static int ivpu_pll_cmd_send(struct ivpu_device *vdev, u16 min_ratio, u16 max_ratio,
110 			     u16 target_ratio, u16 config)
111 {
112 	int ret;
113 	u32 val;
114 
115 	ret = ivpu_pll_wait_for_cmd_send(vdev);
116 	if (ret) {
117 		ivpu_err(vdev, "Failed to sync before WP request: %d\n", ret);
118 		return ret;
119 	}
120 
121 	val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0);
122 	val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0, MIN_RATIO, min_ratio, val);
123 	val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0, MAX_RATIO, max_ratio, val);
124 	REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD0, val);
125 
126 	val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1);
127 	val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1, TARGET_RATIO, target_ratio, val);
128 	val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1, EPP, PLL_DEFAULT_EPP_VALUE, val);
129 	REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD1, val);
130 
131 	val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD2);
132 	val = REG_SET_FLD_NUM(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD2, CONFIG, config, val);
133 	REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_PAYLOAD2, val);
134 
135 	val = REGB_RD32(VPU_37XX_BUTTRESS_WP_REQ_CMD);
136 	val = REG_SET_FLD(VPU_37XX_BUTTRESS_WP_REQ_CMD, SEND, val);
137 	REGB_WR32(VPU_37XX_BUTTRESS_WP_REQ_CMD, val);
138 
139 	ret = ivpu_pll_wait_for_cmd_send(vdev);
140 	if (ret)
141 		ivpu_err(vdev, "Failed to sync after WP request: %d\n", ret);
142 
143 	return ret;
144 }
145 
ivpu_pll_wait_for_lock(struct ivpu_device * vdev,bool enable)146 static int ivpu_pll_wait_for_lock(struct ivpu_device *vdev, bool enable)
147 {
148 	u32 exp_val = enable ? 0x1 : 0x0;
149 
150 	if (IVPU_WA(punit_disabled))
151 		return 0;
152 
153 	return REGB_POLL_FLD(VPU_37XX_BUTTRESS_PLL_STATUS, LOCK, exp_val, PLL_TIMEOUT_US);
154 }
155 
ivpu_pll_wait_for_status_ready(struct ivpu_device * vdev)156 static int ivpu_pll_wait_for_status_ready(struct ivpu_device *vdev)
157 {
158 	if (IVPU_WA(punit_disabled))
159 		return 0;
160 
161 	return REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, READY, 1, PLL_TIMEOUT_US);
162 }
163 
ivpu_pll_init_frequency_ratios(struct ivpu_device * vdev)164 static void ivpu_pll_init_frequency_ratios(struct ivpu_device *vdev)
165 {
166 	struct ivpu_hw_info *hw = vdev->hw;
167 	u8 fuse_min_ratio, fuse_max_ratio, fuse_pn_ratio;
168 	u32 fmin_fuse, fmax_fuse;
169 
170 	fmin_fuse = REGB_RD32(VPU_37XX_BUTTRESS_FMIN_FUSE);
171 	fuse_min_ratio = REG_GET_FLD(VPU_37XX_BUTTRESS_FMIN_FUSE, MIN_RATIO, fmin_fuse);
172 	fuse_pn_ratio = REG_GET_FLD(VPU_37XX_BUTTRESS_FMIN_FUSE, PN_RATIO, fmin_fuse);
173 
174 	fmax_fuse = REGB_RD32(VPU_37XX_BUTTRESS_FMAX_FUSE);
175 	fuse_max_ratio = REG_GET_FLD(VPU_37XX_BUTTRESS_FMAX_FUSE, MAX_RATIO, fmax_fuse);
176 
177 	hw->pll.min_ratio = clamp_t(u8, ivpu_pll_min_ratio, fuse_min_ratio, fuse_max_ratio);
178 	hw->pll.max_ratio = clamp_t(u8, ivpu_pll_max_ratio, hw->pll.min_ratio, fuse_max_ratio);
179 	hw->pll.pn_ratio = clamp_t(u8, fuse_pn_ratio, hw->pll.min_ratio, hw->pll.max_ratio);
180 }
181 
ivpu_hw_37xx_wait_for_vpuip_bar(struct ivpu_device * vdev)182 static int ivpu_hw_37xx_wait_for_vpuip_bar(struct ivpu_device *vdev)
183 {
184 	return REGV_POLL_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, AON, 0, 100);
185 }
186 
ivpu_pll_drive(struct ivpu_device * vdev,bool enable)187 static int ivpu_pll_drive(struct ivpu_device *vdev, bool enable)
188 {
189 	struct ivpu_hw_info *hw = vdev->hw;
190 	u16 target_ratio;
191 	u16 config;
192 	int ret;
193 
194 	if (IVPU_WA(punit_disabled)) {
195 		ivpu_dbg(vdev, PM, "Skipping PLL request\n");
196 		return 0;
197 	}
198 
199 	if (enable) {
200 		target_ratio = hw->pll.pn_ratio;
201 		config = hw->config;
202 	} else {
203 		target_ratio = 0;
204 		config = 0;
205 	}
206 
207 	ivpu_dbg(vdev, PM, "PLL workpoint request: config 0x%04x pll ratio 0x%x\n",
208 		 config, target_ratio);
209 
210 	ret = ivpu_pll_cmd_send(vdev, hw->pll.min_ratio, hw->pll.max_ratio, target_ratio, config);
211 	if (ret) {
212 		ivpu_err(vdev, "Failed to send PLL workpoint request: %d\n", ret);
213 		return ret;
214 	}
215 
216 	ret = ivpu_pll_wait_for_lock(vdev, enable);
217 	if (ret) {
218 		ivpu_err(vdev, "Timed out waiting for PLL lock\n");
219 		return ret;
220 	}
221 
222 	if (enable) {
223 		ret = ivpu_pll_wait_for_status_ready(vdev);
224 		if (ret) {
225 			ivpu_err(vdev, "Timed out waiting for PLL ready status\n");
226 			return ret;
227 		}
228 
229 		ret = ivpu_hw_37xx_wait_for_vpuip_bar(vdev);
230 		if (ret) {
231 			ivpu_err(vdev, "Timed out waiting for VPUIP bar\n");
232 			return ret;
233 		}
234 	}
235 
236 	return 0;
237 }
238 
ivpu_pll_enable(struct ivpu_device * vdev)239 static int ivpu_pll_enable(struct ivpu_device *vdev)
240 {
241 	return ivpu_pll_drive(vdev, true);
242 }
243 
ivpu_pll_disable(struct ivpu_device * vdev)244 static int ivpu_pll_disable(struct ivpu_device *vdev)
245 {
246 	return ivpu_pll_drive(vdev, false);
247 }
248 
ivpu_boot_host_ss_rst_clr_assert(struct ivpu_device * vdev)249 static void ivpu_boot_host_ss_rst_clr_assert(struct ivpu_device *vdev)
250 {
251 	u32 val = 0;
252 
253 	val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, TOP_NOC, val);
254 	val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, DSS_MAS, val);
255 	val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_CLR, MSS_MAS, val);
256 
257 	REGV_WR32(VPU_37XX_HOST_SS_CPR_RST_CLR, val);
258 }
259 
ivpu_boot_host_ss_rst_drive(struct ivpu_device * vdev,bool enable)260 static void ivpu_boot_host_ss_rst_drive(struct ivpu_device *vdev, bool enable)
261 {
262 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_CPR_RST_SET);
263 
264 	if (enable) {
265 		val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, TOP_NOC, val);
266 		val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, DSS_MAS, val);
267 		val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, MSS_MAS, val);
268 	} else {
269 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, TOP_NOC, val);
270 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, DSS_MAS, val);
271 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_RST_SET, MSS_MAS, val);
272 	}
273 
274 	REGV_WR32(VPU_37XX_HOST_SS_CPR_RST_SET, val);
275 }
276 
ivpu_boot_host_ss_clk_drive(struct ivpu_device * vdev,bool enable)277 static void ivpu_boot_host_ss_clk_drive(struct ivpu_device *vdev, bool enable)
278 {
279 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_CPR_CLK_SET);
280 
281 	if (enable) {
282 		val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, TOP_NOC, val);
283 		val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, DSS_MAS, val);
284 		val = REG_SET_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, MSS_MAS, val);
285 	} else {
286 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, TOP_NOC, val);
287 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, DSS_MAS, val);
288 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_CPR_CLK_SET, MSS_MAS, val);
289 	}
290 
291 	REGV_WR32(VPU_37XX_HOST_SS_CPR_CLK_SET, val);
292 }
293 
ivpu_boot_noc_qreqn_check(struct ivpu_device * vdev,u32 exp_val)294 static int ivpu_boot_noc_qreqn_check(struct ivpu_device *vdev, u32 exp_val)
295 {
296 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QREQN);
297 
298 	if (!REG_TEST_FLD_NUM(VPU_37XX_HOST_SS_NOC_QREQN, TOP_SOCMMIO, exp_val, val))
299 		return -EIO;
300 
301 	return 0;
302 }
303 
ivpu_boot_noc_qacceptn_check(struct ivpu_device * vdev,u32 exp_val)304 static int ivpu_boot_noc_qacceptn_check(struct ivpu_device *vdev, u32 exp_val)
305 {
306 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QACCEPTN);
307 
308 	if (!REG_TEST_FLD_NUM(VPU_37XX_HOST_SS_NOC_QACCEPTN, TOP_SOCMMIO, exp_val, val))
309 		return -EIO;
310 
311 	return 0;
312 }
313 
ivpu_boot_noc_qdeny_check(struct ivpu_device * vdev,u32 exp_val)314 static int ivpu_boot_noc_qdeny_check(struct ivpu_device *vdev, u32 exp_val)
315 {
316 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QDENY);
317 
318 	if (!REG_TEST_FLD_NUM(VPU_37XX_HOST_SS_NOC_QDENY, TOP_SOCMMIO, exp_val, val))
319 		return -EIO;
320 
321 	return 0;
322 }
323 
ivpu_boot_top_noc_qrenqn_check(struct ivpu_device * vdev,u32 exp_val)324 static int ivpu_boot_top_noc_qrenqn_check(struct ivpu_device *vdev, u32 exp_val)
325 {
326 	u32 val = REGV_RD32(VPU_37XX_TOP_NOC_QREQN);
327 
328 	if (!REG_TEST_FLD_NUM(VPU_37XX_TOP_NOC_QREQN, CPU_CTRL, exp_val, val) ||
329 	    !REG_TEST_FLD_NUM(VPU_37XX_TOP_NOC_QREQN, HOSTIF_L2CACHE, exp_val, val))
330 		return -EIO;
331 
332 	return 0;
333 }
334 
ivpu_boot_top_noc_qacceptn_check(struct ivpu_device * vdev,u32 exp_val)335 static int ivpu_boot_top_noc_qacceptn_check(struct ivpu_device *vdev, u32 exp_val)
336 {
337 	u32 val = REGV_RD32(VPU_37XX_TOP_NOC_QACCEPTN);
338 
339 	if (!REG_TEST_FLD_NUM(VPU_37XX_TOP_NOC_QACCEPTN, CPU_CTRL, exp_val, val) ||
340 	    !REG_TEST_FLD_NUM(VPU_37XX_TOP_NOC_QACCEPTN, HOSTIF_L2CACHE, exp_val, val))
341 		return -EIO;
342 
343 	return 0;
344 }
345 
ivpu_boot_top_noc_qdeny_check(struct ivpu_device * vdev,u32 exp_val)346 static int ivpu_boot_top_noc_qdeny_check(struct ivpu_device *vdev, u32 exp_val)
347 {
348 	u32 val = REGV_RD32(VPU_37XX_TOP_NOC_QDENY);
349 
350 	if (!REG_TEST_FLD_NUM(VPU_37XX_TOP_NOC_QDENY, CPU_CTRL, exp_val, val) ||
351 	    !REG_TEST_FLD_NUM(VPU_37XX_TOP_NOC_QDENY, HOSTIF_L2CACHE, exp_val, val))
352 		return -EIO;
353 
354 	return 0;
355 }
356 
ivpu_boot_host_ss_configure(struct ivpu_device * vdev)357 static int ivpu_boot_host_ss_configure(struct ivpu_device *vdev)
358 {
359 	ivpu_boot_host_ss_rst_clr_assert(vdev);
360 
361 	return ivpu_boot_noc_qreqn_check(vdev, 0x0);
362 }
363 
ivpu_boot_vpu_idle_gen_disable(struct ivpu_device * vdev)364 static void ivpu_boot_vpu_idle_gen_disable(struct ivpu_device *vdev)
365 {
366 	REGV_WR32(VPU_37XX_HOST_SS_AON_VPU_IDLE_GEN, 0x0);
367 }
368 
ivpu_boot_host_ss_axi_drive(struct ivpu_device * vdev,bool enable)369 static int ivpu_boot_host_ss_axi_drive(struct ivpu_device *vdev, bool enable)
370 {
371 	int ret;
372 	u32 val;
373 
374 	val = REGV_RD32(VPU_37XX_HOST_SS_NOC_QREQN);
375 	if (enable)
376 		val = REG_SET_FLD(VPU_37XX_HOST_SS_NOC_QREQN, TOP_SOCMMIO, val);
377 	else
378 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_NOC_QREQN, TOP_SOCMMIO, val);
379 	REGV_WR32(VPU_37XX_HOST_SS_NOC_QREQN, val);
380 
381 	ret = ivpu_boot_noc_qacceptn_check(vdev, enable ? 0x1 : 0x0);
382 	if (ret) {
383 		ivpu_err(vdev, "Failed qacceptn check: %d\n", ret);
384 		return ret;
385 	}
386 
387 	ret = ivpu_boot_noc_qdeny_check(vdev, 0x0);
388 	if (ret)
389 		ivpu_err(vdev, "Failed qdeny check: %d\n", ret);
390 
391 	return ret;
392 }
393 
ivpu_boot_host_ss_axi_enable(struct ivpu_device * vdev)394 static int ivpu_boot_host_ss_axi_enable(struct ivpu_device *vdev)
395 {
396 	return ivpu_boot_host_ss_axi_drive(vdev, true);
397 }
398 
ivpu_boot_host_ss_top_noc_drive(struct ivpu_device * vdev,bool enable)399 static int ivpu_boot_host_ss_top_noc_drive(struct ivpu_device *vdev, bool enable)
400 {
401 	int ret;
402 	u32 val;
403 
404 	val = REGV_RD32(VPU_37XX_TOP_NOC_QREQN);
405 	if (enable) {
406 		val = REG_SET_FLD(VPU_37XX_TOP_NOC_QREQN, CPU_CTRL, val);
407 		val = REG_SET_FLD(VPU_37XX_TOP_NOC_QREQN, HOSTIF_L2CACHE, val);
408 	} else {
409 		val = REG_CLR_FLD(VPU_37XX_TOP_NOC_QREQN, CPU_CTRL, val);
410 		val = REG_CLR_FLD(VPU_37XX_TOP_NOC_QREQN, HOSTIF_L2CACHE, val);
411 	}
412 	REGV_WR32(VPU_37XX_TOP_NOC_QREQN, val);
413 
414 	ret = ivpu_boot_top_noc_qacceptn_check(vdev, enable ? 0x1 : 0x0);
415 	if (ret) {
416 		ivpu_err(vdev, "Failed qacceptn check: %d\n", ret);
417 		return ret;
418 	}
419 
420 	ret = ivpu_boot_top_noc_qdeny_check(vdev, 0x0);
421 	if (ret)
422 		ivpu_err(vdev, "Failed qdeny check: %d\n", ret);
423 
424 	return ret;
425 }
426 
ivpu_boot_host_ss_top_noc_enable(struct ivpu_device * vdev)427 static int ivpu_boot_host_ss_top_noc_enable(struct ivpu_device *vdev)
428 {
429 	return ivpu_boot_host_ss_top_noc_drive(vdev, true);
430 }
431 
ivpu_boot_pwr_island_trickle_drive(struct ivpu_device * vdev,bool enable)432 static void ivpu_boot_pwr_island_trickle_drive(struct ivpu_device *vdev, bool enable)
433 {
434 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0);
435 
436 	if (enable)
437 		val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, MSS_CPU, val);
438 	else
439 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, MSS_CPU, val);
440 
441 	REGV_WR32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, val);
442 }
443 
ivpu_boot_pwr_island_drive(struct ivpu_device * vdev,bool enable)444 static void ivpu_boot_pwr_island_drive(struct ivpu_device *vdev, bool enable)
445 {
446 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0);
447 
448 	if (enable)
449 		val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0, MSS_CPU, val);
450 	else
451 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0, MSS_CPU, val);
452 
453 	REGV_WR32(VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0, val);
454 }
455 
ivpu_boot_wait_for_pwr_island_status(struct ivpu_device * vdev,u32 exp_val)456 static int ivpu_boot_wait_for_pwr_island_status(struct ivpu_device *vdev, u32 exp_val)
457 {
458 	return REGV_POLL_FLD(VPU_37XX_HOST_SS_AON_PWR_ISLAND_STATUS0, MSS_CPU,
459 			     exp_val, PWR_ISLAND_STATUS_TIMEOUT_US);
460 }
461 
ivpu_boot_pwr_island_isolation_drive(struct ivpu_device * vdev,bool enable)462 static void ivpu_boot_pwr_island_isolation_drive(struct ivpu_device *vdev, bool enable)
463 {
464 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0);
465 
466 	if (enable)
467 		val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0, MSS_CPU, val);
468 	else
469 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0, MSS_CPU, val);
470 
471 	REGV_WR32(VPU_37XX_HOST_SS_AON_PWR_ISO_EN0, val);
472 }
473 
ivpu_boot_dpu_active_drive(struct ivpu_device * vdev,bool enable)474 static void ivpu_boot_dpu_active_drive(struct ivpu_device *vdev, bool enable)
475 {
476 	u32 val = REGV_RD32(VPU_37XX_HOST_SS_AON_DPU_ACTIVE);
477 
478 	if (enable)
479 		val = REG_SET_FLD(VPU_37XX_HOST_SS_AON_DPU_ACTIVE, DPU_ACTIVE, val);
480 	else
481 		val = REG_CLR_FLD(VPU_37XX_HOST_SS_AON_DPU_ACTIVE, DPU_ACTIVE, val);
482 
483 	REGV_WR32(VPU_37XX_HOST_SS_AON_DPU_ACTIVE, val);
484 }
485 
ivpu_boot_pwr_domain_enable(struct ivpu_device * vdev)486 static int ivpu_boot_pwr_domain_enable(struct ivpu_device *vdev)
487 {
488 	int ret;
489 
490 	ivpu_boot_pwr_island_trickle_drive(vdev, true);
491 	ivpu_boot_pwr_island_drive(vdev, true);
492 
493 	ret = ivpu_boot_wait_for_pwr_island_status(vdev, 0x1);
494 	if (ret) {
495 		ivpu_err(vdev, "Timed out waiting for power island status\n");
496 		return ret;
497 	}
498 
499 	ret = ivpu_boot_top_noc_qrenqn_check(vdev, 0x0);
500 	if (ret) {
501 		ivpu_err(vdev, "Failed qrenqn check %d\n", ret);
502 		return ret;
503 	}
504 
505 	ivpu_boot_host_ss_clk_drive(vdev, true);
506 	ivpu_boot_pwr_island_isolation_drive(vdev, false);
507 	ivpu_boot_host_ss_rst_drive(vdev, true);
508 	ivpu_boot_dpu_active_drive(vdev, true);
509 
510 	return ret;
511 }
512 
ivpu_boot_no_snoop_enable(struct ivpu_device * vdev)513 static void ivpu_boot_no_snoop_enable(struct ivpu_device *vdev)
514 {
515 	u32 val = REGV_RD32(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES);
516 
517 	val = REG_SET_FLD(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, NOSNOOP_OVERRIDE_EN, val);
518 	val = REG_CLR_FLD(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, AW_NOSNOOP_OVERRIDE, val);
519 	val = REG_SET_FLD(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, AR_NOSNOOP_OVERRIDE, val);
520 
521 	REGV_WR32(VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES, val);
522 }
523 
ivpu_boot_tbu_mmu_enable(struct ivpu_device * vdev)524 static void ivpu_boot_tbu_mmu_enable(struct ivpu_device *vdev)
525 {
526 	u32 val = REGV_RD32(VPU_37XX_HOST_IF_TBU_MMUSSIDV);
527 
528 	val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU0_AWMMUSSIDV, val);
529 	val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU0_ARMMUSSIDV, val);
530 	val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU2_AWMMUSSIDV, val);
531 	val = REG_SET_FLD(VPU_37XX_HOST_IF_TBU_MMUSSIDV, TBU2_ARMMUSSIDV, val);
532 
533 	REGV_WR32(VPU_37XX_HOST_IF_TBU_MMUSSIDV, val);
534 }
535 
ivpu_boot_soc_cpu_boot(struct ivpu_device * vdev)536 static void ivpu_boot_soc_cpu_boot(struct ivpu_device *vdev)
537 {
538 	u32 val;
539 
540 	val = REGV_RD32(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC);
541 	val = REG_SET_FLD(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RSTRUN0, val);
542 
543 	val = REG_CLR_FLD(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RSTVEC, val);
544 	REGV_WR32(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
545 
546 	val = REG_SET_FLD(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
547 	REGV_WR32(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
548 
549 	val = REG_CLR_FLD(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
550 	REGV_WR32(VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
551 
552 	val = vdev->fw->entry_point >> 9;
553 	REGV_WR32(VPU_37XX_HOST_SS_LOADING_ADDRESS_LO, val);
554 
555 	val = REG_SET_FLD(VPU_37XX_HOST_SS_LOADING_ADDRESS_LO, DONE, val);
556 	REGV_WR32(VPU_37XX_HOST_SS_LOADING_ADDRESS_LO, val);
557 
558 	ivpu_dbg(vdev, PM, "Booting firmware, mode: %s\n",
559 		 vdev->fw->entry_point == vdev->fw->cold_boot_entry_point ? "cold boot" : "resume");
560 }
561 
ivpu_boot_d0i3_drive(struct ivpu_device * vdev,bool enable)562 static int ivpu_boot_d0i3_drive(struct ivpu_device *vdev, bool enable)
563 {
564 	int ret;
565 	u32 val;
566 
567 	ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
568 	if (ret) {
569 		ivpu_err(vdev, "Failed to sync before D0i3 transition: %d\n", ret);
570 		return ret;
571 	}
572 
573 	val = REGB_RD32(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL);
574 	if (enable)
575 		val = REG_SET_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, I3, val);
576 	else
577 		val = REG_CLR_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, I3, val);
578 	REGB_WR32(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, val);
579 
580 	ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
581 	if (ret)
582 		ivpu_err(vdev, "Failed to sync after D0i3 transition: %d\n", ret);
583 
584 	return ret;
585 }
586 
ivpu_hw_37xx_info_init(struct ivpu_device * vdev)587 static int ivpu_hw_37xx_info_init(struct ivpu_device *vdev)
588 {
589 	struct ivpu_hw_info *hw = vdev->hw;
590 
591 	hw->tile_fuse = TILE_FUSE_ENABLE_BOTH;
592 	hw->sku = TILE_SKU_BOTH_MTL;
593 	hw->config = WP_CONFIG_2_TILE_4_3_RATIO;
594 
595 	ivpu_pll_init_frequency_ratios(vdev);
596 
597 	ivpu_hw_init_range(&hw->ranges.global, 0x80000000, SZ_512M);
598 	ivpu_hw_init_range(&hw->ranges.user,   0xc0000000, 255 * SZ_1M);
599 	ivpu_hw_init_range(&hw->ranges.shave, 0x180000000, SZ_2G);
600 	ivpu_hw_init_range(&hw->ranges.dma,   0x200000000, SZ_8G);
601 
602 	vdev->platform = IVPU_PLATFORM_SILICON;
603 	ivpu_hw_wa_init(vdev);
604 	ivpu_hw_timeouts_init(vdev);
605 
606 	return 0;
607 }
608 
ivpu_hw_37xx_ip_reset(struct ivpu_device * vdev)609 static int ivpu_hw_37xx_ip_reset(struct ivpu_device *vdev)
610 {
611 	int ret;
612 	u32 val;
613 
614 	if (IVPU_WA(punit_disabled))
615 		return 0;
616 
617 	ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
618 	if (ret) {
619 		ivpu_err(vdev, "Timed out waiting for TRIGGER bit\n");
620 		return ret;
621 	}
622 
623 	val = REGB_RD32(VPU_37XX_BUTTRESS_VPU_IP_RESET);
624 	val = REG_SET_FLD(VPU_37XX_BUTTRESS_VPU_IP_RESET, TRIGGER, val);
625 	REGB_WR32(VPU_37XX_BUTTRESS_VPU_IP_RESET, val);
626 
627 	ret = REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
628 	if (ret)
629 		ivpu_err(vdev, "Timed out waiting for RESET completion\n");
630 
631 	return ret;
632 }
633 
ivpu_hw_37xx_reset(struct ivpu_device * vdev)634 static int ivpu_hw_37xx_reset(struct ivpu_device *vdev)
635 {
636 	int ret = 0;
637 
638 	if (ivpu_hw_37xx_ip_reset(vdev)) {
639 		ivpu_err(vdev, "Failed to reset NPU\n");
640 		ret = -EIO;
641 	}
642 
643 	if (ivpu_pll_disable(vdev)) {
644 		ivpu_err(vdev, "Failed to disable PLL\n");
645 		ret = -EIO;
646 	}
647 
648 	return ret;
649 }
650 
ivpu_hw_37xx_d0i3_enable(struct ivpu_device * vdev)651 static int ivpu_hw_37xx_d0i3_enable(struct ivpu_device *vdev)
652 {
653 	int ret;
654 
655 	ret = ivpu_boot_d0i3_drive(vdev, true);
656 	if (ret)
657 		ivpu_err(vdev, "Failed to enable D0i3: %d\n", ret);
658 
659 	udelay(5); /* VPU requires 5 us to complete the transition */
660 
661 	return ret;
662 }
663 
ivpu_hw_37xx_d0i3_disable(struct ivpu_device * vdev)664 static int ivpu_hw_37xx_d0i3_disable(struct ivpu_device *vdev)
665 {
666 	int ret;
667 
668 	ret = ivpu_boot_d0i3_drive(vdev, false);
669 	if (ret)
670 		ivpu_err(vdev, "Failed to disable D0i3: %d\n", ret);
671 
672 	return ret;
673 }
674 
ivpu_hw_37xx_power_up(struct ivpu_device * vdev)675 static int ivpu_hw_37xx_power_up(struct ivpu_device *vdev)
676 {
677 	int ret;
678 
679 	/* PLL requests may fail when powering down, so issue WP 0 here */
680 	ret = ivpu_pll_disable(vdev);
681 	if (ret)
682 		ivpu_warn(vdev, "Failed to disable PLL: %d\n", ret);
683 
684 	ret = ivpu_hw_37xx_d0i3_disable(vdev);
685 	if (ret)
686 		ivpu_warn(vdev, "Failed to disable D0I3: %d\n", ret);
687 
688 	ret = ivpu_pll_enable(vdev);
689 	if (ret) {
690 		ivpu_err(vdev, "Failed to enable PLL: %d\n", ret);
691 		return ret;
692 	}
693 
694 	ret = ivpu_boot_host_ss_configure(vdev);
695 	if (ret) {
696 		ivpu_err(vdev, "Failed to configure host SS: %d\n", ret);
697 		return ret;
698 	}
699 
700 	/*
701 	 * The control circuitry for vpu_idle indication logic powers up active.
702 	 * To ensure unnecessary low power mode signal from LRT during bring up,
703 	 * KMD disables the circuitry prior to bringing up the Main Power island.
704 	 */
705 	ivpu_boot_vpu_idle_gen_disable(vdev);
706 
707 	ret = ivpu_boot_pwr_domain_enable(vdev);
708 	if (ret) {
709 		ivpu_err(vdev, "Failed to enable power domain: %d\n", ret);
710 		return ret;
711 	}
712 
713 	ret = ivpu_boot_host_ss_axi_enable(vdev);
714 	if (ret) {
715 		ivpu_err(vdev, "Failed to enable AXI: %d\n", ret);
716 		return ret;
717 	}
718 
719 	ret = ivpu_boot_host_ss_top_noc_enable(vdev);
720 	if (ret)
721 		ivpu_err(vdev, "Failed to enable TOP NOC: %d\n", ret);
722 
723 	return ret;
724 }
725 
ivpu_hw_37xx_boot_fw(struct ivpu_device * vdev)726 static int ivpu_hw_37xx_boot_fw(struct ivpu_device *vdev)
727 {
728 	ivpu_boot_no_snoop_enable(vdev);
729 	ivpu_boot_tbu_mmu_enable(vdev);
730 	ivpu_boot_soc_cpu_boot(vdev);
731 
732 	return 0;
733 }
734 
ivpu_hw_37xx_is_idle(struct ivpu_device * vdev)735 static bool ivpu_hw_37xx_is_idle(struct ivpu_device *vdev)
736 {
737 	u32 val;
738 
739 	if (IVPU_WA(punit_disabled))
740 		return true;
741 
742 	val = REGB_RD32(VPU_37XX_BUTTRESS_VPU_STATUS);
743 	return REG_TEST_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, READY, val) &&
744 	       REG_TEST_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, IDLE, val);
745 }
746 
ivpu_hw_37xx_wait_for_idle(struct ivpu_device * vdev)747 static int ivpu_hw_37xx_wait_for_idle(struct ivpu_device *vdev)
748 {
749 	return REGB_POLL_FLD(VPU_37XX_BUTTRESS_VPU_STATUS, IDLE, 0x1, IDLE_TIMEOUT_US);
750 }
751 
ivpu_hw_37xx_save_d0i3_entry_timestamp(struct ivpu_device * vdev)752 static void ivpu_hw_37xx_save_d0i3_entry_timestamp(struct ivpu_device *vdev)
753 {
754 	vdev->hw->d0i3_entry_host_ts = ktime_get_boottime();
755 	vdev->hw->d0i3_entry_vpu_ts = REGV_RD64(VPU_37XX_CPU_SS_TIM_PERF_FREE_CNT);
756 }
757 
ivpu_hw_37xx_power_down(struct ivpu_device * vdev)758 static int ivpu_hw_37xx_power_down(struct ivpu_device *vdev)
759 {
760 	int ret = 0;
761 
762 	ivpu_hw_37xx_save_d0i3_entry_timestamp(vdev);
763 
764 	if (!ivpu_hw_37xx_is_idle(vdev))
765 		ivpu_warn(vdev, "VPU not idle during power down\n");
766 
767 	if (ivpu_hw_37xx_reset(vdev)) {
768 		ivpu_err(vdev, "Failed to reset VPU\n");
769 		ret = -EIO;
770 	}
771 
772 	if (ivpu_hw_37xx_d0i3_enable(vdev)) {
773 		ivpu_err(vdev, "Failed to enter D0I3\n");
774 		ret = -EIO;
775 	}
776 
777 	return ret;
778 }
779 
ivpu_hw_37xx_wdt_disable(struct ivpu_device * vdev)780 static void ivpu_hw_37xx_wdt_disable(struct ivpu_device *vdev)
781 {
782 	u32 val;
783 
784 	/* Enable writing and set non-zero WDT value */
785 	REGV_WR32(VPU_37XX_CPU_SS_TIM_SAFE, TIM_SAFE_ENABLE);
786 	REGV_WR32(VPU_37XX_CPU_SS_TIM_WATCHDOG, TIM_WATCHDOG_RESET_VALUE);
787 
788 	/* Enable writing and disable watchdog timer */
789 	REGV_WR32(VPU_37XX_CPU_SS_TIM_SAFE, TIM_SAFE_ENABLE);
790 	REGV_WR32(VPU_37XX_CPU_SS_TIM_WDOG_EN, 0);
791 
792 	/* Now clear the timeout interrupt */
793 	val = REGV_RD32(VPU_37XX_CPU_SS_TIM_GEN_CONFIG);
794 	val = REG_CLR_FLD(VPU_37XX_CPU_SS_TIM_GEN_CONFIG, WDOG_TO_INT_CLR, val);
795 	REGV_WR32(VPU_37XX_CPU_SS_TIM_GEN_CONFIG, val);
796 }
797 
ivpu_hw_37xx_profiling_freq_get(struct ivpu_device * vdev)798 static u32 ivpu_hw_37xx_profiling_freq_get(struct ivpu_device *vdev)
799 {
800 	return PLL_PROF_CLK_FREQ;
801 }
802 
ivpu_hw_37xx_profiling_freq_drive(struct ivpu_device * vdev,bool enable)803 static void ivpu_hw_37xx_profiling_freq_drive(struct ivpu_device *vdev, bool enable)
804 {
805 	/* Profiling freq - is a debug feature. Unavailable on VPU 37XX. */
806 }
807 
ivpu_hw_37xx_pll_to_freq(u32 ratio,u32 config)808 static u32 ivpu_hw_37xx_pll_to_freq(u32 ratio, u32 config)
809 {
810 	u32 pll_clock = PLL_REF_CLK_FREQ * ratio;
811 	u32 cpu_clock;
812 
813 	if ((config & 0xff) == PLL_RATIO_4_3)
814 		cpu_clock = pll_clock * 2 / 4;
815 	else
816 		cpu_clock = pll_clock * 2 / 5;
817 
818 	return cpu_clock;
819 }
820 
821 /* Register indirect accesses */
ivpu_hw_37xx_reg_pll_freq_get(struct ivpu_device * vdev)822 static u32 ivpu_hw_37xx_reg_pll_freq_get(struct ivpu_device *vdev)
823 {
824 	u32 pll_curr_ratio;
825 
826 	pll_curr_ratio = REGB_RD32(VPU_37XX_BUTTRESS_CURRENT_PLL);
827 	pll_curr_ratio &= VPU_37XX_BUTTRESS_CURRENT_PLL_RATIO_MASK;
828 
829 	if (!ivpu_is_silicon(vdev))
830 		return PLL_SIMULATION_FREQ;
831 
832 	return ivpu_hw_37xx_pll_to_freq(pll_curr_ratio, vdev->hw->config);
833 }
834 
ivpu_hw_37xx_reg_telemetry_offset_get(struct ivpu_device * vdev)835 static u32 ivpu_hw_37xx_reg_telemetry_offset_get(struct ivpu_device *vdev)
836 {
837 	return REGB_RD32(VPU_37XX_BUTTRESS_VPU_TELEMETRY_OFFSET);
838 }
839 
ivpu_hw_37xx_reg_telemetry_size_get(struct ivpu_device * vdev)840 static u32 ivpu_hw_37xx_reg_telemetry_size_get(struct ivpu_device *vdev)
841 {
842 	return REGB_RD32(VPU_37XX_BUTTRESS_VPU_TELEMETRY_SIZE);
843 }
844 
ivpu_hw_37xx_reg_telemetry_enable_get(struct ivpu_device * vdev)845 static u32 ivpu_hw_37xx_reg_telemetry_enable_get(struct ivpu_device *vdev)
846 {
847 	return REGB_RD32(VPU_37XX_BUTTRESS_VPU_TELEMETRY_ENABLE);
848 }
849 
ivpu_hw_37xx_reg_db_set(struct ivpu_device * vdev,u32 db_id)850 static void ivpu_hw_37xx_reg_db_set(struct ivpu_device *vdev, u32 db_id)
851 {
852 	u32 reg_stride = VPU_37XX_CPU_SS_DOORBELL_1 - VPU_37XX_CPU_SS_DOORBELL_0;
853 	u32 val = REG_FLD(VPU_37XX_CPU_SS_DOORBELL_0, SET);
854 
855 	REGV_WR32I(VPU_37XX_CPU_SS_DOORBELL_0, reg_stride, db_id, val);
856 }
857 
ivpu_hw_37xx_reg_ipc_rx_addr_get(struct ivpu_device * vdev)858 static u32 ivpu_hw_37xx_reg_ipc_rx_addr_get(struct ivpu_device *vdev)
859 {
860 	return REGV_RD32(VPU_37XX_HOST_SS_TIM_IPC_FIFO_ATM);
861 }
862 
ivpu_hw_37xx_reg_ipc_rx_count_get(struct ivpu_device * vdev)863 static u32 ivpu_hw_37xx_reg_ipc_rx_count_get(struct ivpu_device *vdev)
864 {
865 	u32 count = REGV_RD32_SILENT(VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT);
866 
867 	return REG_GET_FLD(VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT, FILL_LEVEL, count);
868 }
869 
ivpu_hw_37xx_reg_ipc_tx_set(struct ivpu_device * vdev,u32 vpu_addr)870 static void ivpu_hw_37xx_reg_ipc_tx_set(struct ivpu_device *vdev, u32 vpu_addr)
871 {
872 	REGV_WR32(VPU_37XX_CPU_SS_TIM_IPC_FIFO, vpu_addr);
873 }
874 
ivpu_hw_37xx_irq_clear(struct ivpu_device * vdev)875 static void ivpu_hw_37xx_irq_clear(struct ivpu_device *vdev)
876 {
877 	REGV_WR64(VPU_37XX_HOST_SS_ICB_CLEAR_0, ICB_0_1_IRQ_MASK);
878 }
879 
ivpu_hw_37xx_irq_enable(struct ivpu_device * vdev)880 static void ivpu_hw_37xx_irq_enable(struct ivpu_device *vdev)
881 {
882 	REGV_WR32(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, ITF_FIREWALL_VIOLATION_MASK);
883 	REGV_WR64(VPU_37XX_HOST_SS_ICB_ENABLE_0, ICB_0_1_IRQ_MASK);
884 	REGB_WR32(VPU_37XX_BUTTRESS_LOCAL_INT_MASK, BUTTRESS_IRQ_ENABLE_MASK);
885 	REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x0);
886 }
887 
ivpu_hw_37xx_irq_disable(struct ivpu_device * vdev)888 static void ivpu_hw_37xx_irq_disable(struct ivpu_device *vdev)
889 {
890 	REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x1);
891 	REGB_WR32(VPU_37XX_BUTTRESS_LOCAL_INT_MASK, BUTTRESS_IRQ_DISABLE_MASK);
892 	REGV_WR64(VPU_37XX_HOST_SS_ICB_ENABLE_0, 0x0ull);
893 	REGV_WR32(VPU_37XX_HOST_SS_FW_SOC_IRQ_EN, 0x0);
894 }
895 
ivpu_hw_37xx_irq_wdt_nce_handler(struct ivpu_device * vdev)896 static void ivpu_hw_37xx_irq_wdt_nce_handler(struct ivpu_device *vdev)
897 {
898 	ivpu_pm_trigger_recovery(vdev, "WDT NCE IRQ");
899 }
900 
ivpu_hw_37xx_irq_wdt_mss_handler(struct ivpu_device * vdev)901 static void ivpu_hw_37xx_irq_wdt_mss_handler(struct ivpu_device *vdev)
902 {
903 	ivpu_hw_wdt_disable(vdev);
904 	ivpu_pm_trigger_recovery(vdev, "WDT MSS IRQ");
905 }
906 
ivpu_hw_37xx_irq_noc_firewall_handler(struct ivpu_device * vdev)907 static void ivpu_hw_37xx_irq_noc_firewall_handler(struct ivpu_device *vdev)
908 {
909 	ivpu_pm_trigger_recovery(vdev, "NOC Firewall IRQ");
910 }
911 
912 /* Handler for IRQs from VPU core (irqV) */
ivpu_hw_37xx_irqv_handler(struct ivpu_device * vdev,int irq,bool * wake_thread)913 static bool ivpu_hw_37xx_irqv_handler(struct ivpu_device *vdev, int irq, bool *wake_thread)
914 {
915 	u32 status = REGV_RD32(VPU_37XX_HOST_SS_ICB_STATUS_0) & ICB_0_IRQ_MASK;
916 
917 	if (!status)
918 		return false;
919 
920 	REGV_WR32(VPU_37XX_HOST_SS_ICB_CLEAR_0, status);
921 
922 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_0_INT, status))
923 		ivpu_mmu_irq_evtq_handler(vdev);
924 
925 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, HOST_IPC_FIFO_INT, status))
926 		ivpu_ipc_irq_handler(vdev, wake_thread);
927 
928 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_1_INT, status))
929 		ivpu_dbg(vdev, IRQ, "MMU sync complete\n");
930 
931 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, MMU_IRQ_2_INT, status))
932 		ivpu_mmu_irq_gerr_handler(vdev);
933 
934 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT, status))
935 		ivpu_hw_37xx_irq_wdt_mss_handler(vdev);
936 
937 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT, status))
938 		ivpu_hw_37xx_irq_wdt_nce_handler(vdev);
939 
940 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT, status))
941 		ivpu_hw_37xx_irq_noc_firewall_handler(vdev);
942 
943 	return true;
944 }
945 
946 /* Handler for IRQs from Buttress core (irqB) */
ivpu_hw_37xx_irqb_handler(struct ivpu_device * vdev,int irq)947 static bool ivpu_hw_37xx_irqb_handler(struct ivpu_device *vdev, int irq)
948 {
949 	u32 status = REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
950 	bool schedule_recovery = false;
951 
952 	if (!status)
953 		return false;
954 
955 	if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE, status))
956 		ivpu_dbg(vdev, IRQ, "FREQ_CHANGE irq: %08x",
957 			 REGB_RD32(VPU_37XX_BUTTRESS_CURRENT_PLL));
958 
959 	if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, ATS_ERR, status)) {
960 		ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(VPU_37XX_BUTTRESS_ATS_ERR_LOG_0));
961 		REGB_WR32(VPU_37XX_BUTTRESS_ATS_ERR_CLEAR, 0x1);
962 		schedule_recovery = true;
963 	}
964 
965 	if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, UFI_ERR, status)) {
966 		u32 ufi_log = REGB_RD32(VPU_37XX_BUTTRESS_UFI_ERR_LOG);
967 
968 		ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
969 			 ufi_log, REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, OPCODE, ufi_log),
970 			 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
971 			 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
972 		REGB_WR32(VPU_37XX_BUTTRESS_UFI_ERR_CLEAR, 0x1);
973 		schedule_recovery = true;
974 	}
975 
976 	/* This must be done after interrupts are cleared at the source. */
977 	if (IVPU_WA(interrupt_clear_with_0))
978 		/*
979 		 * Writing 1 triggers an interrupt, so we can't perform read update write.
980 		 * Clear local interrupt status by writing 0 to all bits.
981 		 */
982 		REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, 0x0);
983 	else
984 		REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, status);
985 
986 	if (schedule_recovery)
987 		ivpu_pm_trigger_recovery(vdev, "Buttress IRQ");
988 
989 	return true;
990 }
991 
ivpu_hw_37xx_irq_handler(int irq,void * ptr)992 static irqreturn_t ivpu_hw_37xx_irq_handler(int irq, void *ptr)
993 {
994 	struct ivpu_device *vdev = ptr;
995 	bool irqv_handled, irqb_handled, wake_thread = false;
996 
997 	REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x1);
998 
999 	irqv_handled = ivpu_hw_37xx_irqv_handler(vdev, irq, &wake_thread);
1000 	irqb_handled = ivpu_hw_37xx_irqb_handler(vdev, irq);
1001 
1002 	/* Re-enable global interrupts to re-trigger MSI for pending interrupts */
1003 	REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x0);
1004 
1005 	if (wake_thread)
1006 		return IRQ_WAKE_THREAD;
1007 	if (irqv_handled || irqb_handled)
1008 		return IRQ_HANDLED;
1009 	return IRQ_NONE;
1010 }
1011 
ivpu_hw_37xx_diagnose_failure(struct ivpu_device * vdev)1012 static void ivpu_hw_37xx_diagnose_failure(struct ivpu_device *vdev)
1013 {
1014 	u32 irqv = REGV_RD32(VPU_37XX_HOST_SS_ICB_STATUS_0) & ICB_0_IRQ_MASK;
1015 	u32 irqb = REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
1016 
1017 	if (ivpu_hw_37xx_reg_ipc_rx_count_get(vdev))
1018 		ivpu_err(vdev, "IPC FIFO queue not empty, missed IPC IRQ");
1019 
1020 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT, irqv))
1021 		ivpu_err(vdev, "WDT MSS timeout detected\n");
1022 
1023 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT, irqv))
1024 		ivpu_err(vdev, "WDT NCE timeout detected\n");
1025 
1026 	if (REG_TEST_FLD(VPU_37XX_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT, irqv))
1027 		ivpu_err(vdev, "NOC Firewall irq detected\n");
1028 
1029 	if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, ATS_ERR, irqb))
1030 		ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(VPU_37XX_BUTTRESS_ATS_ERR_LOG_0));
1031 
1032 	if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, UFI_ERR, irqb)) {
1033 		u32 ufi_log = REGB_RD32(VPU_37XX_BUTTRESS_UFI_ERR_LOG);
1034 
1035 		ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
1036 			 ufi_log, REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, OPCODE, ufi_log),
1037 			 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
1038 			 REG_GET_FLD(VPU_37XX_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
1039 	}
1040 }
1041 
1042 const struct ivpu_hw_ops ivpu_hw_37xx_ops = {
1043 	.info_init = ivpu_hw_37xx_info_init,
1044 	.power_up = ivpu_hw_37xx_power_up,
1045 	.is_idle = ivpu_hw_37xx_is_idle,
1046 	.wait_for_idle = ivpu_hw_37xx_wait_for_idle,
1047 	.power_down = ivpu_hw_37xx_power_down,
1048 	.reset = ivpu_hw_37xx_reset,
1049 	.boot_fw = ivpu_hw_37xx_boot_fw,
1050 	.wdt_disable = ivpu_hw_37xx_wdt_disable,
1051 	.diagnose_failure = ivpu_hw_37xx_diagnose_failure,
1052 	.profiling_freq_get = ivpu_hw_37xx_profiling_freq_get,
1053 	.profiling_freq_drive = ivpu_hw_37xx_profiling_freq_drive,
1054 	.reg_pll_freq_get = ivpu_hw_37xx_reg_pll_freq_get,
1055 	.reg_telemetry_offset_get = ivpu_hw_37xx_reg_telemetry_offset_get,
1056 	.reg_telemetry_size_get = ivpu_hw_37xx_reg_telemetry_size_get,
1057 	.reg_telemetry_enable_get = ivpu_hw_37xx_reg_telemetry_enable_get,
1058 	.reg_db_set = ivpu_hw_37xx_reg_db_set,
1059 	.reg_ipc_rx_addr_get = ivpu_hw_37xx_reg_ipc_rx_addr_get,
1060 	.reg_ipc_rx_count_get = ivpu_hw_37xx_reg_ipc_rx_count_get,
1061 	.reg_ipc_tx_set = ivpu_hw_37xx_reg_ipc_tx_set,
1062 	.irq_clear = ivpu_hw_37xx_irq_clear,
1063 	.irq_enable = ivpu_hw_37xx_irq_enable,
1064 	.irq_disable = ivpu_hw_37xx_irq_disable,
1065 	.irq_handler = ivpu_hw_37xx_irq_handler,
1066 };
1067