1 /*
2  * Copyright © 2016 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  *
23  */
24 
25 #include <linux/string_helpers.h>
26 
27 #include <drm/drm_print.h>
28 #include <drm/i915_pciids.h>
29 
30 #include "display/intel_display_device.h"
31 #include "gt/intel_gt_regs.h"
32 #include "i915_drv.h"
33 #include "i915_reg.h"
34 #include "i915_utils.h"
35 #include "intel_device_info.h"
36 
37 #define PLATFORM_NAME(x) [INTEL_##x] = #x
38 static const char * const platform_names[] = {
39 	PLATFORM_NAME(I830),
40 	PLATFORM_NAME(I845G),
41 	PLATFORM_NAME(I85X),
42 	PLATFORM_NAME(I865G),
43 	PLATFORM_NAME(I915G),
44 	PLATFORM_NAME(I915GM),
45 	PLATFORM_NAME(I945G),
46 	PLATFORM_NAME(I945GM),
47 	PLATFORM_NAME(G33),
48 	PLATFORM_NAME(PINEVIEW),
49 	PLATFORM_NAME(I965G),
50 	PLATFORM_NAME(I965GM),
51 	PLATFORM_NAME(G45),
52 	PLATFORM_NAME(GM45),
53 	PLATFORM_NAME(IRONLAKE),
54 	PLATFORM_NAME(SANDYBRIDGE),
55 	PLATFORM_NAME(IVYBRIDGE),
56 	PLATFORM_NAME(VALLEYVIEW),
57 	PLATFORM_NAME(HASWELL),
58 	PLATFORM_NAME(BROADWELL),
59 	PLATFORM_NAME(CHERRYVIEW),
60 	PLATFORM_NAME(SKYLAKE),
61 	PLATFORM_NAME(BROXTON),
62 	PLATFORM_NAME(KABYLAKE),
63 	PLATFORM_NAME(GEMINILAKE),
64 	PLATFORM_NAME(COFFEELAKE),
65 	PLATFORM_NAME(COMETLAKE),
66 	PLATFORM_NAME(ICELAKE),
67 	PLATFORM_NAME(ELKHARTLAKE),
68 	PLATFORM_NAME(JASPERLAKE),
69 	PLATFORM_NAME(TIGERLAKE),
70 	PLATFORM_NAME(ROCKETLAKE),
71 	PLATFORM_NAME(DG1),
72 	PLATFORM_NAME(ALDERLAKE_S),
73 	PLATFORM_NAME(ALDERLAKE_P),
74 	PLATFORM_NAME(XEHPSDV),
75 	PLATFORM_NAME(DG2),
76 	PLATFORM_NAME(PONTEVECCHIO),
77 	PLATFORM_NAME(METEORLAKE),
78 };
79 #undef PLATFORM_NAME
80 
intel_platform_name(enum intel_platform platform)81 const char *intel_platform_name(enum intel_platform platform)
82 {
83 	BUILD_BUG_ON(ARRAY_SIZE(platform_names) != INTEL_MAX_PLATFORMS);
84 
85 	if (WARN_ON_ONCE(platform >= ARRAY_SIZE(platform_names) ||
86 			 platform_names[platform] == NULL))
87 		return "<unknown>";
88 
89 	return platform_names[platform];
90 }
91 
intel_device_info_print(const struct intel_device_info * info,const struct intel_runtime_info * runtime,struct drm_printer * p)92 void intel_device_info_print(const struct intel_device_info *info,
93 			     const struct intel_runtime_info *runtime,
94 			     struct drm_printer *p)
95 {
96 	if (runtime->graphics.ip.rel)
97 		drm_printf(p, "graphics version: %u.%02u\n",
98 			   runtime->graphics.ip.ver,
99 			   runtime->graphics.ip.rel);
100 	else
101 		drm_printf(p, "graphics version: %u\n",
102 			   runtime->graphics.ip.ver);
103 
104 	if (runtime->media.ip.rel)
105 		drm_printf(p, "media version: %u.%02u\n",
106 			   runtime->media.ip.ver,
107 			   runtime->media.ip.rel);
108 	else
109 		drm_printf(p, "media version: %u\n",
110 			   runtime->media.ip.ver);
111 
112 	drm_printf(p, "graphics stepping: %s\n", intel_step_name(runtime->step.graphics_step));
113 	drm_printf(p, "media stepping: %s\n", intel_step_name(runtime->step.media_step));
114 	drm_printf(p, "display stepping: %s\n", intel_step_name(runtime->step.display_step));
115 	drm_printf(p, "base die stepping: %s\n", intel_step_name(runtime->step.basedie_step));
116 
117 	drm_printf(p, "gt: %d\n", info->gt);
118 	drm_printf(p, "memory-regions: 0x%x\n", info->memory_regions);
119 	drm_printf(p, "page-sizes: 0x%x\n", runtime->page_sizes);
120 	drm_printf(p, "platform: %s\n", intel_platform_name(info->platform));
121 	drm_printf(p, "ppgtt-size: %d\n", runtime->ppgtt_size);
122 	drm_printf(p, "ppgtt-type: %d\n", runtime->ppgtt_type);
123 	drm_printf(p, "dma_mask_size: %u\n", info->dma_mask_size);
124 
125 #define PRINT_FLAG(name) drm_printf(p, "%s: %s\n", #name, str_yes_no(info->name))
126 	DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
127 #undef PRINT_FLAG
128 
129 	drm_printf(p, "has_pooled_eu: %s\n", str_yes_no(runtime->has_pooled_eu));
130 	drm_printf(p, "rawclk rate: %u kHz\n", runtime->rawclk_freq);
131 }
132 
133 #undef INTEL_VGA_DEVICE
134 #define INTEL_VGA_DEVICE(id, info) (id)
135 
136 static const u16 subplatform_ult_ids[] = {
137 	INTEL_HSW_ULT_GT1_IDS(0),
138 	INTEL_HSW_ULT_GT2_IDS(0),
139 	INTEL_HSW_ULT_GT3_IDS(0),
140 	INTEL_BDW_ULT_GT1_IDS(0),
141 	INTEL_BDW_ULT_GT2_IDS(0),
142 	INTEL_BDW_ULT_GT3_IDS(0),
143 	INTEL_BDW_ULT_RSVD_IDS(0),
144 	INTEL_SKL_ULT_GT1_IDS(0),
145 	INTEL_SKL_ULT_GT2_IDS(0),
146 	INTEL_SKL_ULT_GT3_IDS(0),
147 	INTEL_KBL_ULT_GT1_IDS(0),
148 	INTEL_KBL_ULT_GT2_IDS(0),
149 	INTEL_KBL_ULT_GT3_IDS(0),
150 	INTEL_CFL_U_GT2_IDS(0),
151 	INTEL_CFL_U_GT3_IDS(0),
152 	INTEL_WHL_U_GT1_IDS(0),
153 	INTEL_WHL_U_GT2_IDS(0),
154 	INTEL_WHL_U_GT3_IDS(0),
155 	INTEL_CML_U_GT1_IDS(0),
156 	INTEL_CML_U_GT2_IDS(0),
157 };
158 
159 static const u16 subplatform_ulx_ids[] = {
160 	INTEL_HSW_ULX_GT1_IDS(0),
161 	INTEL_HSW_ULX_GT2_IDS(0),
162 	INTEL_BDW_ULX_GT1_IDS(0),
163 	INTEL_BDW_ULX_GT2_IDS(0),
164 	INTEL_BDW_ULX_GT3_IDS(0),
165 	INTEL_BDW_ULX_RSVD_IDS(0),
166 	INTEL_SKL_ULX_GT1_IDS(0),
167 	INTEL_SKL_ULX_GT2_IDS(0),
168 	INTEL_KBL_ULX_GT1_IDS(0),
169 	INTEL_KBL_ULX_GT2_IDS(0),
170 	INTEL_AML_KBL_GT2_IDS(0),
171 	INTEL_AML_CFL_GT2_IDS(0),
172 };
173 
174 static const u16 subplatform_portf_ids[] = {
175 	INTEL_ICL_PORT_F_IDS(0),
176 };
177 
178 static const u16 subplatform_uy_ids[] = {
179 	INTEL_TGL_12_GT2_IDS(0),
180 };
181 
182 static const u16 subplatform_n_ids[] = {
183 	INTEL_ADLN_IDS(0),
184 };
185 
186 static const u16 subplatform_rpl_ids[] = {
187 	INTEL_RPLS_IDS(0),
188 	INTEL_RPLP_IDS(0),
189 };
190 
191 static const u16 subplatform_rplu_ids[] = {
192 	INTEL_RPLU_IDS(0),
193 };
194 
195 static const u16 subplatform_g10_ids[] = {
196 	INTEL_DG2_G10_IDS(0),
197 	INTEL_ATS_M150_IDS(0),
198 };
199 
200 static const u16 subplatform_g11_ids[] = {
201 	INTEL_DG2_G11_IDS(0),
202 	INTEL_ATS_M75_IDS(0),
203 };
204 
205 static const u16 subplatform_g12_ids[] = {
206 	INTEL_DG2_G12_IDS(0),
207 };
208 
209 static const u16 subplatform_m_ids[] = {
210 	INTEL_MTL_M_IDS(0),
211 };
212 
213 static const u16 subplatform_p_ids[] = {
214 	INTEL_MTL_P_IDS(0),
215 };
216 
find_devid(u16 id,const u16 * p,unsigned int num)217 static bool find_devid(u16 id, const u16 *p, unsigned int num)
218 {
219 	for (; num; num--, p++) {
220 		if (*p == id)
221 			return true;
222 	}
223 
224 	return false;
225 }
226 
intel_device_info_subplatform_init(struct drm_i915_private * i915)227 static void intel_device_info_subplatform_init(struct drm_i915_private *i915)
228 {
229 	const struct intel_device_info *info = INTEL_INFO(i915);
230 	const struct intel_runtime_info *rinfo = RUNTIME_INFO(i915);
231 	const unsigned int pi = __platform_mask_index(rinfo, info->platform);
232 	const unsigned int pb = __platform_mask_bit(rinfo, info->platform);
233 	u16 devid = INTEL_DEVID(i915);
234 	u32 mask = 0;
235 
236 	/* Make sure IS_<platform> checks are working. */
237 	RUNTIME_INFO(i915)->platform_mask[pi] = BIT(pb);
238 
239 	/* Find and mark subplatform bits based on the PCI device id. */
240 	if (find_devid(devid, subplatform_ult_ids,
241 		       ARRAY_SIZE(subplatform_ult_ids))) {
242 		mask = BIT(INTEL_SUBPLATFORM_ULT);
243 		if (IS_HASWELL(i915) || IS_BROADWELL(i915))
244 			DISPLAY_RUNTIME_INFO(i915)->port_mask &= ~BIT(PORT_D);
245 	} else if (find_devid(devid, subplatform_ulx_ids,
246 			      ARRAY_SIZE(subplatform_ulx_ids))) {
247 		mask = BIT(INTEL_SUBPLATFORM_ULX);
248 		if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
249 			/* ULX machines are also considered ULT. */
250 			mask |= BIT(INTEL_SUBPLATFORM_ULT);
251 			DISPLAY_RUNTIME_INFO(i915)->port_mask &= ~BIT(PORT_D);
252 		}
253 	} else if (find_devid(devid, subplatform_portf_ids,
254 			      ARRAY_SIZE(subplatform_portf_ids))) {
255 		DISPLAY_RUNTIME_INFO(i915)->port_mask |= BIT(PORT_F);
256 		mask = BIT(INTEL_SUBPLATFORM_PORTF);
257 	} else if (find_devid(devid, subplatform_uy_ids,
258 			   ARRAY_SIZE(subplatform_uy_ids))) {
259 		mask = BIT(INTEL_SUBPLATFORM_UY);
260 	} else if (find_devid(devid, subplatform_n_ids,
261 				ARRAY_SIZE(subplatform_n_ids))) {
262 		mask = BIT(INTEL_SUBPLATFORM_N);
263 	} else if (find_devid(devid, subplatform_rpl_ids,
264 			      ARRAY_SIZE(subplatform_rpl_ids))) {
265 		mask = BIT(INTEL_SUBPLATFORM_RPL);
266 		if (find_devid(devid, subplatform_rplu_ids,
267 			       ARRAY_SIZE(subplatform_rplu_ids)))
268 			mask |= BIT(INTEL_SUBPLATFORM_RPLU);
269 	} else if (find_devid(devid, subplatform_g10_ids,
270 			      ARRAY_SIZE(subplatform_g10_ids))) {
271 		mask = BIT(INTEL_SUBPLATFORM_G10);
272 	} else if (find_devid(devid, subplatform_g11_ids,
273 			      ARRAY_SIZE(subplatform_g11_ids))) {
274 		mask = BIT(INTEL_SUBPLATFORM_G11);
275 	} else if (find_devid(devid, subplatform_g12_ids,
276 			      ARRAY_SIZE(subplatform_g12_ids))) {
277 		mask = BIT(INTEL_SUBPLATFORM_G12);
278 	} else if (find_devid(devid, subplatform_m_ids,
279 			      ARRAY_SIZE(subplatform_m_ids))) {
280 		mask = BIT(INTEL_SUBPLATFORM_M);
281 	} else if (find_devid(devid, subplatform_p_ids,
282 			      ARRAY_SIZE(subplatform_p_ids))) {
283 		mask = BIT(INTEL_SUBPLATFORM_P);
284 	}
285 
286 	GEM_BUG_ON(mask & ~INTEL_SUBPLATFORM_MASK);
287 
288 	RUNTIME_INFO(i915)->platform_mask[pi] |= mask;
289 }
290 
ip_ver_read(struct drm_i915_private * i915,u32 offset,struct intel_ip_version * ip)291 static void ip_ver_read(struct drm_i915_private *i915, u32 offset, struct intel_ip_version *ip)
292 {
293 	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
294 	void __iomem *addr;
295 	u32 val;
296 	u8 expected_ver = ip->ver;
297 	u8 expected_rel = ip->rel;
298 
299 	addr = pci_iomap_range(pdev, 0, offset, sizeof(u32));
300 	if (drm_WARN_ON(&i915->drm, !addr))
301 		return;
302 
303 	val = ioread32(addr);
304 	pci_iounmap(pdev, addr);
305 
306 	ip->ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, val);
307 	ip->rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, val);
308 	ip->step = REG_FIELD_GET(GMD_ID_STEP, val);
309 
310 	/* Sanity check against expected versions from device info */
311 	if (IP_VER(ip->ver, ip->rel) < IP_VER(expected_ver, expected_rel))
312 		drm_dbg(&i915->drm,
313 			"Hardware reports GMD IP version %u.%u (REG[0x%x] = 0x%08x) but minimum expected is %u.%u\n",
314 			ip->ver, ip->rel, offset, val, expected_ver, expected_rel);
315 }
316 
317 /*
318  * Setup the graphics version for the current device.  This must be done before
319  * any code that performs checks on GRAPHICS_VER or DISPLAY_VER, so this
320  * function should be called very early in the driver initialization sequence.
321  *
322  * Regular MMIO access is not yet setup at the point this function is called so
323  * we peek at the appropriate MMIO offset directly.  The GMD_ID register is
324  * part of an 'always on' power well by design, so we don't need to worry about
325  * forcewake while reading it.
326  */
intel_ipver_early_init(struct drm_i915_private * i915)327 static void intel_ipver_early_init(struct drm_i915_private *i915)
328 {
329 	struct intel_runtime_info *runtime = RUNTIME_INFO(i915);
330 
331 	if (!HAS_GMD_ID(i915)) {
332 		drm_WARN_ON(&i915->drm, RUNTIME_INFO(i915)->graphics.ip.ver > 12);
333 		/*
334 		 * On older platforms, graphics and media share the same ip
335 		 * version and release.
336 		 */
337 		RUNTIME_INFO(i915)->media.ip =
338 			RUNTIME_INFO(i915)->graphics.ip;
339 		return;
340 	}
341 
342 	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_GRAPHICS),
343 		    &runtime->graphics.ip);
344 	/* Wa_22012778468 */
345 	if (runtime->graphics.ip.ver == 0x0 &&
346 	    INTEL_INFO(i915)->platform == INTEL_METEORLAKE) {
347 		RUNTIME_INFO(i915)->graphics.ip.ver = 12;
348 		RUNTIME_INFO(i915)->graphics.ip.rel = 70;
349 	}
350 	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_MEDIA),
351 		    &runtime->media.ip);
352 }
353 
354 /**
355  * intel_device_info_runtime_init_early - initialize early runtime info
356  * @i915: the i915 device
357  *
358  * Determine early intel_device_info fields at runtime. This function needs
359  * to be called before the MMIO has been setup.
360  */
intel_device_info_runtime_init_early(struct drm_i915_private * i915)361 void intel_device_info_runtime_init_early(struct drm_i915_private *i915)
362 {
363 	intel_ipver_early_init(i915);
364 	intel_device_info_subplatform_init(i915);
365 }
366 
367 static const struct intel_display_device_info no_display = {};
368 
369 /**
370  * intel_device_info_runtime_init - initialize runtime info
371  * @dev_priv: the i915 device
372  *
373  * Determine various intel_device_info fields at runtime.
374  *
375  * Use it when either:
376  *   - it's judged too laborious to fill n static structures with the limit
377  *     when a simple if statement does the job,
378  *   - run-time checks (eg read fuse/strap registers) are needed.
379  *
380  * This function needs to be called:
381  *   - after the MMIO has been setup as we are reading registers,
382  *   - after the PCH has been detected,
383  *   - before the first usage of the fields it can tweak.
384  */
intel_device_info_runtime_init(struct drm_i915_private * dev_priv)385 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
386 {
387 	struct intel_runtime_info *runtime = RUNTIME_INFO(dev_priv);
388 
389 	if (HAS_DISPLAY(dev_priv))
390 		intel_display_device_info_runtime_init(dev_priv);
391 
392 	/* Display may have been disabled by runtime init */
393 	if (!HAS_DISPLAY(dev_priv)) {
394 		dev_priv->drm.driver_features &= ~(DRIVER_MODESET |
395 						   DRIVER_ATOMIC);
396 		dev_priv->display.info.__device_info = &no_display;
397 	}
398 
399 	/* Disable nuclear pageflip by default on pre-g4x */
400 	if (!dev_priv->params.nuclear_pageflip &&
401 	    DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv))
402 		dev_priv->drm.driver_features &= ~DRIVER_ATOMIC;
403 
404 	BUILD_BUG_ON(BITS_PER_TYPE(intel_engine_mask_t) < I915_NUM_ENGINES);
405 
406 	if (GRAPHICS_VER(dev_priv) == 6 && i915_vtd_active(dev_priv)) {
407 		drm_info(&dev_priv->drm,
408 			 "Disabling ppGTT for VT-d support\n");
409 		runtime->ppgtt_type = INTEL_PPGTT_NONE;
410 	}
411 
412 	runtime->rawclk_freq = intel_read_rawclk(dev_priv);
413 	drm_dbg(&dev_priv->drm, "rawclk rate: %d kHz\n", runtime->rawclk_freq);
414 
415 }
416 
417 /*
418  * Set up device info and initial runtime info at driver create.
419  *
420  * Note: i915 is only an allocated blob of memory at this point.
421  */
intel_device_info_driver_create(struct drm_i915_private * i915,u16 device_id,const struct intel_device_info * match_info)422 void intel_device_info_driver_create(struct drm_i915_private *i915,
423 				     u16 device_id,
424 				     const struct intel_device_info *match_info)
425 {
426 	struct intel_runtime_info *runtime;
427 	u16 ver, rel, step;
428 
429 	/* Setup INTEL_INFO() */
430 	i915->__info = match_info;
431 
432 	/* Initialize initial runtime info from static const data and pdev. */
433 	runtime = RUNTIME_INFO(i915);
434 	memcpy(runtime, &INTEL_INFO(i915)->__runtime, sizeof(*runtime));
435 
436 	/* Probe display support */
437 	i915->display.info.__device_info = intel_display_device_probe(i915, HAS_GMD_ID(i915),
438 								      &ver, &rel, &step);
439 	memcpy(DISPLAY_RUNTIME_INFO(i915),
440 	       &DISPLAY_INFO(i915)->__runtime_defaults,
441 	       sizeof(*DISPLAY_RUNTIME_INFO(i915)));
442 
443 	if (HAS_GMD_ID(i915)) {
444 		DISPLAY_RUNTIME_INFO(i915)->ip.ver = ver;
445 		DISPLAY_RUNTIME_INFO(i915)->ip.rel = rel;
446 		DISPLAY_RUNTIME_INFO(i915)->ip.step = step;
447 	}
448 
449 	runtime->device_id = device_id;
450 }
451 
intel_driver_caps_print(const struct intel_driver_caps * caps,struct drm_printer * p)452 void intel_driver_caps_print(const struct intel_driver_caps *caps,
453 			     struct drm_printer *p)
454 {
455 	drm_printf(p, "Has logical contexts? %s\n",
456 		   str_yes_no(caps->has_logical_contexts));
457 	drm_printf(p, "scheduler: 0x%x\n", caps->scheduler);
458 }
459