1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2013 Red Hat
4  * Author: Rob Clark <robdclark@gmail.com>
5  *
6  * Copyright (c) 2014,2017, 2019 The Linux Foundation. All rights reserved.
7  */
8 
9 #ifndef __ADRENO_GPU_H__
10 #define __ADRENO_GPU_H__
11 
12 #include <linux/firmware.h>
13 #include <linux/iopoll.h>
14 
15 #include "msm_gpu.h"
16 
17 #include "adreno_common.xml.h"
18 #include "adreno_pm4.xml.h"
19 
20 extern bool snapshot_debugbus;
21 extern bool allow_vram_carveout;
22 
23 enum {
24 	ADRENO_FW_PM4 = 0,
25 	ADRENO_FW_SQE = 0, /* a6xx */
26 	ADRENO_FW_PFP = 1,
27 	ADRENO_FW_GMU = 1, /* a6xx */
28 	ADRENO_FW_GPMU = 2,
29 	ADRENO_FW_MAX,
30 };
31 
32 enum adreno_quirks {
33 	ADRENO_QUIRK_TWO_PASS_USE_WFI = 1,
34 	ADRENO_QUIRK_FAULT_DETECT_MASK = 2,
35 	ADRENO_QUIRK_LMLOADKILL_DISABLE = 3,
36 };
37 
38 struct adreno_rev {
39 	uint8_t  core;
40 	uint8_t  major;
41 	uint8_t  minor;
42 	uint8_t  patchid;
43 };
44 
45 #define ANY_ID 0xff
46 
47 #define ADRENO_REV(core, major, minor, patchid) \
48 	((struct adreno_rev){ core, major, minor, patchid })
49 
50 struct adreno_gpu_funcs {
51 	struct msm_gpu_funcs base;
52 	int (*get_timestamp)(struct msm_gpu *gpu, uint64_t *value);
53 };
54 
55 struct adreno_reglist {
56 	u32 offset;
57 	u32 value;
58 };
59 
60 extern const struct adreno_reglist a630_hwcg[], a640_hwcg[], a650_hwcg[], a660_hwcg[];
61 
62 struct adreno_info {
63 	struct adreno_rev rev;
64 	uint32_t revn;
65 	const char *name;
66 	const char *fw[ADRENO_FW_MAX];
67 	uint32_t gmem;
68 	enum adreno_quirks quirks;
69 	struct msm_gpu *(*init)(struct drm_device *dev);
70 	const char *zapfw;
71 	u32 inactive_period;
72 	const struct adreno_reglist *hwcg;
73 };
74 
75 const struct adreno_info *adreno_info(struct adreno_rev rev);
76 
77 struct adreno_gpu {
78 	struct msm_gpu base;
79 	struct adreno_rev rev;
80 	const struct adreno_info *info;
81 	uint32_t gmem;  /* actual gmem size */
82 	uint32_t revn;  /* numeric revision name */
83 	uint16_t speedbin;
84 	const struct adreno_gpu_funcs *funcs;
85 
86 	/* interesting register offsets to dump: */
87 	const unsigned int *registers;
88 
89 	/*
90 	 * Are we loading fw from legacy path?  Prior to addition
91 	 * of gpu firmware to linux-firmware, the fw files were
92 	 * placed in toplevel firmware directory, following qcom's
93 	 * android kernel.  But linux-firmware preferred they be
94 	 * placed in a 'qcom' subdirectory.
95 	 *
96 	 * For backwards compatibility, we try first to load from
97 	 * the new path, using request_firmware_direct() to avoid
98 	 * any potential timeout waiting for usermode helper, then
99 	 * fall back to the old path (with direct load).  And
100 	 * finally fall back to request_firmware() with the new
101 	 * path to allow the usermode helper.
102 	 */
103 	enum {
104 		FW_LOCATION_UNKNOWN = 0,
105 		FW_LOCATION_NEW,       /* /lib/firmware/qcom/$fwfile */
106 		FW_LOCATION_LEGACY,    /* /lib/firmware/$fwfile */
107 		FW_LOCATION_HELPER,
108 	} fwloc;
109 
110 	/* firmware: */
111 	const struct firmware *fw[ADRENO_FW_MAX];
112 
113 	/*
114 	 * Register offsets are different between some GPUs.
115 	 * GPU specific offsets will be exported by GPU specific
116 	 * code (a3xx_gpu.c) and stored in this common location.
117 	 */
118 	const unsigned int *reg_offsets;
119 };
120 #define to_adreno_gpu(x) container_of(x, struct adreno_gpu, base)
121 
122 struct adreno_ocmem {
123 	struct ocmem *ocmem;
124 	unsigned long base;
125 	void *hdl;
126 };
127 
128 /* platform config data (ie. from DT, or pdata) */
129 struct adreno_platform_config {
130 	struct adreno_rev rev;
131 };
132 
133 #define ADRENO_IDLE_TIMEOUT msecs_to_jiffies(1000)
134 
135 #define spin_until(X) ({                                   \
136 	int __ret = -ETIMEDOUT;                            \
137 	unsigned long __t = jiffies + ADRENO_IDLE_TIMEOUT; \
138 	do {                                               \
139 		if (X) {                                   \
140 			__ret = 0;                         \
141 			break;                             \
142 		}                                          \
143 	} while (time_before(jiffies, __t));               \
144 	__ret;                                             \
145 })
146 
147 bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2);
148 
149 static inline bool adreno_is_a2xx(struct adreno_gpu *gpu)
150 {
151 	return (gpu->revn < 300);
152 }
153 
154 static inline bool adreno_is_a20x(struct adreno_gpu *gpu)
155 {
156 	return (gpu->revn < 210);
157 }
158 
159 static inline bool adreno_is_a225(struct adreno_gpu *gpu)
160 {
161 	return gpu->revn == 225;
162 }
163 
164 static inline bool adreno_is_a305(struct adreno_gpu *gpu)
165 {
166 	return gpu->revn == 305;
167 }
168 
169 static inline bool adreno_is_a306(struct adreno_gpu *gpu)
170 {
171 	/* yes, 307, because a305c is 306 */
172 	return gpu->revn == 307;
173 }
174 
175 static inline bool adreno_is_a320(struct adreno_gpu *gpu)
176 {
177 	return gpu->revn == 320;
178 }
179 
180 static inline bool adreno_is_a330(struct adreno_gpu *gpu)
181 {
182 	return gpu->revn == 330;
183 }
184 
185 static inline bool adreno_is_a330v2(struct adreno_gpu *gpu)
186 {
187 	return adreno_is_a330(gpu) && (gpu->rev.patchid > 0);
188 }
189 
190 static inline int adreno_is_a405(struct adreno_gpu *gpu)
191 {
192 	return gpu->revn == 405;
193 }
194 
195 static inline int adreno_is_a420(struct adreno_gpu *gpu)
196 {
197 	return gpu->revn == 420;
198 }
199 
200 static inline int adreno_is_a430(struct adreno_gpu *gpu)
201 {
202        return gpu->revn == 430;
203 }
204 
205 static inline int adreno_is_a506(struct adreno_gpu *gpu)
206 {
207 	return gpu->revn == 506;
208 }
209 
210 static inline int adreno_is_a508(struct adreno_gpu *gpu)
211 {
212 	return gpu->revn == 508;
213 }
214 
215 static inline int adreno_is_a509(struct adreno_gpu *gpu)
216 {
217 	return gpu->revn == 509;
218 }
219 
220 static inline int adreno_is_a510(struct adreno_gpu *gpu)
221 {
222 	return gpu->revn == 510;
223 }
224 
225 static inline int adreno_is_a512(struct adreno_gpu *gpu)
226 {
227 	return gpu->revn == 512;
228 }
229 
230 static inline int adreno_is_a530(struct adreno_gpu *gpu)
231 {
232 	return gpu->revn == 530;
233 }
234 
235 static inline int adreno_is_a540(struct adreno_gpu *gpu)
236 {
237 	return gpu->revn == 540;
238 }
239 
240 static inline int adreno_is_a618(struct adreno_gpu *gpu)
241 {
242        return gpu->revn == 618;
243 }
244 
245 static inline int adreno_is_a630(struct adreno_gpu *gpu)
246 {
247        return gpu->revn == 630;
248 }
249 
250 static inline int adreno_is_a640_family(struct adreno_gpu *gpu)
251 {
252 	return (gpu->revn == 640) || (gpu->revn == 680);
253 }
254 
255 static inline int adreno_is_a650(struct adreno_gpu *gpu)
256 {
257        return gpu->revn == 650;
258 }
259 
260 static inline int adreno_is_7c3(struct adreno_gpu *gpu)
261 {
262 	/* The order of args is important here to handle ANY_ID correctly */
263        return adreno_cmp_rev(ADRENO_REV(6, 3, 5, ANY_ID), gpu->rev);
264 }
265 
266 static inline int adreno_is_a660(struct adreno_gpu *gpu)
267 {
268        return gpu->revn == 660;
269 }
270 
271 static inline int adreno_is_a660_family(struct adreno_gpu *gpu)
272 {
273        return adreno_is_a660(gpu) || adreno_is_7c3(gpu);
274 }
275 
276 /* check for a650, a660, or any derivatives */
277 static inline int adreno_is_a650_family(struct adreno_gpu *gpu)
278 {
279        return gpu->revn == 650 || gpu->revn == 620 ||
280 	       adreno_is_a660_family(gpu);
281 }
282 
283 int adreno_get_param(struct msm_gpu *gpu, struct msm_file_private *ctx,
284 		     uint32_t param, uint64_t *value, uint32_t *len);
285 int adreno_set_param(struct msm_gpu *gpu, struct msm_file_private *ctx,
286 		     uint32_t param, uint64_t value, uint32_t len);
287 const struct firmware *adreno_request_fw(struct adreno_gpu *adreno_gpu,
288 		const char *fwname);
289 struct drm_gem_object *adreno_fw_create_bo(struct msm_gpu *gpu,
290 		const struct firmware *fw, u64 *iova);
291 int adreno_hw_init(struct msm_gpu *gpu);
292 void adreno_recover(struct msm_gpu *gpu);
293 void adreno_flush(struct msm_gpu *gpu, struct msm_ringbuffer *ring, u32 reg);
294 bool adreno_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring);
295 #if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP)
296 void adreno_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
297 		struct drm_printer *p);
298 #endif
299 void adreno_dump_info(struct msm_gpu *gpu);
300 void adreno_dump(struct msm_gpu *gpu);
301 void adreno_wait_ring(struct msm_ringbuffer *ring, uint32_t ndwords);
302 struct msm_ringbuffer *adreno_active_ring(struct msm_gpu *gpu);
303 
304 int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
305 			  struct adreno_ocmem *ocmem);
306 void adreno_gpu_ocmem_cleanup(struct adreno_ocmem *ocmem);
307 
308 int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
309 		struct adreno_gpu *gpu, const struct adreno_gpu_funcs *funcs,
310 		int nr_rings);
311 void adreno_gpu_cleanup(struct adreno_gpu *gpu);
312 int adreno_load_fw(struct adreno_gpu *adreno_gpu);
313 
314 void adreno_gpu_state_destroy(struct msm_gpu_state *state);
315 
316 int adreno_gpu_state_get(struct msm_gpu *gpu, struct msm_gpu_state *state);
317 int adreno_gpu_state_put(struct msm_gpu_state *state);
318 void adreno_show_object(struct drm_printer *p, void **ptr, int len,
319 		bool *encoded);
320 
321 /*
322  * Common helper function to initialize the default address space for arm-smmu
323  * attached targets
324  */
325 struct msm_gem_address_space *
326 adreno_iommu_create_address_space(struct msm_gpu *gpu,
327 		struct platform_device *pdev);
328 
329 void adreno_set_llc_attributes(struct iommu_domain *iommu);
330 
331 int adreno_read_speedbin(struct device *dev, u32 *speedbin);
332 
333 /*
334  * For a5xx and a6xx targets load the zap shader that is used to pull the GPU
335  * out of secure mode
336  */
337 int adreno_zap_shader_load(struct msm_gpu *gpu, u32 pasid);
338 
339 /* ringbuffer helpers (the parts that are adreno specific) */
340 
341 static inline void
342 OUT_PKT0(struct msm_ringbuffer *ring, uint16_t regindx, uint16_t cnt)
343 {
344 	adreno_wait_ring(ring, cnt+1);
345 	OUT_RING(ring, CP_TYPE0_PKT | ((cnt-1) << 16) | (regindx & 0x7FFF));
346 }
347 
348 /* no-op packet: */
349 static inline void
350 OUT_PKT2(struct msm_ringbuffer *ring)
351 {
352 	adreno_wait_ring(ring, 1);
353 	OUT_RING(ring, CP_TYPE2_PKT);
354 }
355 
356 static inline void
357 OUT_PKT3(struct msm_ringbuffer *ring, uint8_t opcode, uint16_t cnt)
358 {
359 	adreno_wait_ring(ring, cnt+1);
360 	OUT_RING(ring, CP_TYPE3_PKT | ((cnt-1) << 16) | ((opcode & 0xFF) << 8));
361 }
362 
363 static inline u32 PM4_PARITY(u32 val)
364 {
365 	return (0x9669 >> (0xF & (val ^
366 		(val >> 4) ^ (val >> 8) ^ (val >> 12) ^
367 		(val >> 16) ^ ((val) >> 20) ^ (val >> 24) ^
368 		(val >> 28)))) & 1;
369 }
370 
371 /* Maximum number of values that can be executed for one opcode */
372 #define TYPE4_MAX_PAYLOAD 127
373 
374 #define PKT4(_reg, _cnt) \
375 	(CP_TYPE4_PKT | ((_cnt) << 0) | (PM4_PARITY((_cnt)) << 7) | \
376 	 (((_reg) & 0x3FFFF) << 8) | (PM4_PARITY((_reg)) << 27))
377 
378 static inline void
379 OUT_PKT4(struct msm_ringbuffer *ring, uint16_t regindx, uint16_t cnt)
380 {
381 	adreno_wait_ring(ring, cnt + 1);
382 	OUT_RING(ring, PKT4(regindx, cnt));
383 }
384 
385 static inline void
386 OUT_PKT7(struct msm_ringbuffer *ring, uint8_t opcode, uint16_t cnt)
387 {
388 	adreno_wait_ring(ring, cnt + 1);
389 	OUT_RING(ring, CP_TYPE7_PKT | (cnt << 0) | (PM4_PARITY(cnt) << 15) |
390 		((opcode & 0x7F) << 16) | (PM4_PARITY(opcode) << 23));
391 }
392 
393 struct msm_gpu *a2xx_gpu_init(struct drm_device *dev);
394 struct msm_gpu *a3xx_gpu_init(struct drm_device *dev);
395 struct msm_gpu *a4xx_gpu_init(struct drm_device *dev);
396 struct msm_gpu *a5xx_gpu_init(struct drm_device *dev);
397 struct msm_gpu *a6xx_gpu_init(struct drm_device *dev);
398 
399 static inline uint32_t get_wptr(struct msm_ringbuffer *ring)
400 {
401 	return (ring->cur - ring->start) % (MSM_GPU_RINGBUFFER_SZ >> 2);
402 }
403 
404 /*
405  * Given a register and a count, return a value to program into
406  * REG_CP_PROTECT_REG(n) - this will block both reads and writes for _len
407  * registers starting at _reg.
408  *
409  * The register base needs to be a multiple of the length. If it is not, the
410  * hardware will quietly mask off the bits for you and shift the size. For
411  * example, if you intend the protection to start at 0x07 for a length of 4
412  * (0x07-0x0A) the hardware will actually protect (0x04-0x07) which might
413  * expose registers you intended to protect!
414  */
415 #define ADRENO_PROTECT_RW(_reg, _len) \
416 	((1 << 30) | (1 << 29) | \
417 	((ilog2((_len)) & 0x1F) << 24) | (((_reg) << 2) & 0xFFFFF))
418 
419 /*
420  * Same as above, but allow reads over the range. For areas of mixed use (such
421  * as performance counters) this allows us to protect a much larger range with a
422  * single register
423  */
424 #define ADRENO_PROTECT_RDONLY(_reg, _len) \
425 	((1 << 29) \
426 	((ilog2((_len)) & 0x1F) << 24) | (((_reg) << 2) & 0xFFFFF))
427 
428 
429 #define gpu_poll_timeout(gpu, addr, val, cond, interval, timeout) \
430 	readl_poll_timeout((gpu)->mmio + ((addr) << 2), val, cond, \
431 		interval, timeout)
432 
433 #endif /* __ADRENO_GPU_H__ */
434