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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /* Hisilicon Hibmc SoC drm driver
23  *
34  * Based on the bochs drm driver.
....@@ -8,36 +9,24 @@
89  *	Rongrong Zou <zourongrong@huawei.com>
910  *	Rongrong Zou <zourongrong@gmail.com>
1011  *	Jianhua Li <lijianhua@huawei.com>
11
- *
12
- * This program is free software; you can redistribute it and/or modify
13
- * it under the terms of the GNU General Public License as published by
14
- * the Free Software Foundation; either version 2 of the License, or
15
- * (at your option) any later version.
16
- *
1712  */
1813 
19
-#include <linux/console.h>
2014 #include <linux/module.h>
15
+#include <linux/pci.h>
2116 
2217 #include <drm/drm_atomic_helper.h>
23
-#include <drm/drm_crtc_helper.h>
18
+#include <drm/drm_drv.h>
19
+#include <drm/drm_gem_vram_helper.h>
20
+#include <drm/drm_irq.h>
21
+#include <drm/drm_managed.h>
22
+#include <drm/drm_vblank.h>
2423 
2524 #include "hibmc_drm_drv.h"
2625 #include "hibmc_drm_regs.h"
2726 
28
-static const struct file_operations hibmc_fops = {
29
-	.owner		= THIS_MODULE,
30
-	.open		= drm_open,
31
-	.release	= drm_release,
32
-	.unlocked_ioctl	= drm_ioctl,
33
-	.compat_ioctl	= drm_compat_ioctl,
34
-	.mmap		= hibmc_mmap,
35
-	.poll		= drm_poll,
36
-	.read		= drm_read,
37
-	.llseek		= no_llseek,
38
-};
27
+DEFINE_DRM_GEM_FOPS(hibmc_fops);
3928 
40
-irqreturn_t hibmc_drm_interrupt(int irq, void *arg)
29
+static irqreturn_t hibmc_drm_interrupt(int irq, void *arg)
4130 {
4231 	struct drm_device *dev = (struct drm_device *)arg;
4332 	struct hibmc_drm_private *priv =
....@@ -56,48 +45,32 @@
5645 }
5746 
5847 static struct drm_driver hibmc_driver = {
59
-	.driver_features	= DRIVER_GEM | DRIVER_MODESET |
60
-				  DRIVER_ATOMIC | DRIVER_HAVE_IRQ,
48
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
6149 	.fops			= &hibmc_fops,
6250 	.name			= "hibmc",
6351 	.date			= "20160828",
6452 	.desc			= "hibmc drm driver",
6553 	.major			= 1,
6654 	.minor			= 0,
67
-	.gem_free_object_unlocked = hibmc_gem_free_object,
55
+	.debugfs_init		= drm_vram_mm_debugfs_init,
6856 	.dumb_create            = hibmc_dumb_create,
69
-	.dumb_map_offset        = hibmc_dumb_mmap_offset,
57
+	.dumb_map_offset        = drm_gem_vram_driver_dumb_mmap_offset,
58
+	.gem_prime_mmap		= drm_gem_prime_mmap,
7059 	.irq_handler		= hibmc_drm_interrupt,
7160 };
7261 
7362 static int __maybe_unused hibmc_pm_suspend(struct device *dev)
7463 {
75
-	struct pci_dev *pdev = to_pci_dev(dev);
76
-	struct drm_device *drm_dev = pci_get_drvdata(pdev);
77
-	struct hibmc_drm_private *priv = drm_dev->dev_private;
64
+	struct drm_device *drm_dev = dev_get_drvdata(dev);
7865 
79
-	drm_kms_helper_poll_disable(drm_dev);
80
-	priv->suspend_state = drm_atomic_helper_suspend(drm_dev);
81
-	if (IS_ERR(priv->suspend_state)) {
82
-		DRM_ERROR("drm_atomic_helper_suspend failed: %ld\n",
83
-			  PTR_ERR(priv->suspend_state));
84
-		drm_kms_helper_poll_enable(drm_dev);
85
-		return PTR_ERR(priv->suspend_state);
86
-	}
87
-
88
-	return 0;
66
+	return drm_mode_config_helper_suspend(drm_dev);
8967 }
9068 
9169 static int  __maybe_unused hibmc_pm_resume(struct device *dev)
9270 {
93
-	struct pci_dev *pdev = to_pci_dev(dev);
94
-	struct drm_device *drm_dev = pci_get_drvdata(pdev);
95
-	struct hibmc_drm_private *priv = drm_dev->dev_private;
71
+	struct drm_device *drm_dev = dev_get_drvdata(dev);
9672 
97
-	drm_atomic_helper_resume(drm_dev, priv->suspend_state);
98
-	drm_kms_helper_poll_enable(drm_dev);
99
-
100
-	return 0;
73
+	return drm_mode_config_helper_resume(drm_dev);
10174 }
10275 
10376 static const struct dev_pm_ops hibmc_pm_ops = {
....@@ -115,23 +88,23 @@
11588 	priv->dev->mode_config.min_width = 0;
11689 	priv->dev->mode_config.min_height = 0;
11790 	priv->dev->mode_config.max_width = 1920;
118
-	priv->dev->mode_config.max_height = 1440;
91
+	priv->dev->mode_config.max_height = 1200;
11992 
12093 	priv->dev->mode_config.fb_base = priv->fb_base;
121
-	priv->dev->mode_config.preferred_depth = 24;
122
-	priv->dev->mode_config.prefer_shadow = 0;
94
+	priv->dev->mode_config.preferred_depth = 32;
95
+	priv->dev->mode_config.prefer_shadow = 1;
12396 
12497 	priv->dev->mode_config.funcs = (void *)&hibmc_mode_funcs;
12598 
12699 	ret = hibmc_de_init(priv);
127100 	if (ret) {
128
-		DRM_ERROR("failed to init de: %d\n", ret);
101
+		drm_err(priv->dev, "failed to init de: %d\n", ret);
129102 		return ret;
130103 	}
131104 
132105 	ret = hibmc_vdac_init(priv);
133106 	if (ret) {
134
-		DRM_ERROR("failed to init vdac: %d\n", ret);
107
+		drm_err(priv->dev, "failed to init vdac: %d\n", ret);
135108 		return ret;
136109 	}
137110 
....@@ -237,9 +210,9 @@
237210 
238211 	ioaddr = pci_resource_start(pdev, 1);
239212 	iosize = pci_resource_len(pdev, 1);
240
-	priv->mmio = devm_ioremap_nocache(dev->dev, ioaddr, iosize);
213
+	priv->mmio = devm_ioremap(dev->dev, ioaddr, iosize);
241214 	if (!priv->mmio) {
242
-		DRM_ERROR("Cannot map mmio region\n");
215
+		drm_err(dev, "Cannot map mmio region\n");
243216 		return -ENOMEM;
244217 	}
245218 
....@@ -247,7 +220,7 @@
247220 	size = pci_resource_len(pdev, 0);
248221 	priv->fb_map = devm_ioremap(dev->dev, addr, size);
249222 	if (!priv->fb_map) {
250
-		DRM_ERROR("Cannot map framebuffer\n");
223
+		drm_err(dev, "Cannot map framebuffer\n");
251224 		return -ENOMEM;
252225 	}
253226 	priv->fb_base = addr;
....@@ -273,15 +246,12 @@
273246 {
274247 	struct hibmc_drm_private *priv = dev->dev_private;
275248 
276
-	hibmc_fbdev_fini(priv);
277
-
278249 	drm_atomic_helper_shutdown(dev);
279250 
280251 	if (dev->irq_enabled)
281252 		drm_irq_uninstall(dev);
282
-	if (priv->msi_enabled)
283
-		pci_disable_msi(dev->pdev);
284253 
254
+	pci_disable_msi(dev->pdev);
285255 	hibmc_kms_fini(priv);
286256 	hibmc_mm_fini(priv);
287257 	dev->dev_private = NULL;
....@@ -293,9 +263,9 @@
293263 	struct hibmc_drm_private *priv;
294264 	int ret;
295265 
296
-	priv = devm_kzalloc(dev->dev, sizeof(*priv), GFP_KERNEL);
266
+	priv = drmm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
297267 	if (!priv) {
298
-		DRM_ERROR("no memory to allocate for hibmc_drm_private\n");
268
+		drm_err(dev, "no memory to allocate for hibmc_drm_private\n");
299269 		return -ENOMEM;
300270 	}
301271 	dev->dev_private = priv;
....@@ -315,35 +285,27 @@
315285 
316286 	ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
317287 	if (ret) {
318
-		DRM_ERROR("failed to initialize vblank: %d\n", ret);
288
+		drm_err(dev, "failed to initialize vblank: %d\n", ret);
319289 		goto err;
320290 	}
321291 
322
-	priv->msi_enabled = 0;
323292 	ret = pci_enable_msi(dev->pdev);
324293 	if (ret) {
325
-		DRM_WARN("enabling MSI failed: %d\n", ret);
294
+		drm_warn(dev, "enabling MSI failed: %d\n", ret);
326295 	} else {
327
-		priv->msi_enabled = 1;
328296 		ret = drm_irq_install(dev, dev->pdev->irq);
329297 		if (ret)
330
-			DRM_WARN("install irq failed: %d\n", ret);
298
+			drm_warn(dev, "install irq failed: %d\n", ret);
331299 	}
332300 
333301 	/* reset all the states of crtc/plane/encoder/connector */
334302 	drm_mode_config_reset(dev);
335303 
336
-	ret = hibmc_fbdev_init(priv);
337
-	if (ret) {
338
-		DRM_ERROR("failed to initialize fbdev: %d\n", ret);
339
-		goto err;
340
-	}
341
-
342304 	return 0;
343305 
344306 err:
345307 	hibmc_unload(dev);
346
-	DRM_ERROR("failed to initialize drm driver: %d\n", ret);
308
+	drm_err(dev, "failed to initialize drm driver: %d\n", ret);
347309 	return ret;
348310 }
349311 
....@@ -352,6 +314,11 @@
352314 {
353315 	struct drm_device *dev;
354316 	int ret;
317
+
318
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
319
+								"hibmcdrmfb");
320
+	if (ret)
321
+		return ret;
355322 
356323 	dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
357324 	if (IS_ERR(dev)) {
....@@ -364,22 +331,25 @@
364331 
365332 	ret = pci_enable_device(pdev);
366333 	if (ret) {
367
-		DRM_ERROR("failed to enable pci device: %d\n", ret);
334
+		drm_err(dev, "failed to enable pci device: %d\n", ret);
368335 		goto err_free;
369336 	}
370337 
371338 	ret = hibmc_load(dev);
372339 	if (ret) {
373
-		DRM_ERROR("failed to load hibmc: %d\n", ret);
340
+		drm_err(dev, "failed to load hibmc: %d\n", ret);
374341 		goto err_disable;
375342 	}
376343 
377344 	ret = drm_dev_register(dev, 0);
378345 	if (ret) {
379
-		DRM_ERROR("failed to register drv for userspace access: %d\n",
346
+		drm_err(dev, "failed to register drv for userspace access: %d\n",
380347 			  ret);
381348 		goto err_unload;
382349 	}
350
+
351
+	drm_fbdev_generic_setup(dev, dev->mode_config.preferred_depth);
352
+
383353 	return 0;
384354 
385355 err_unload:
....@@ -387,7 +357,7 @@
387357 err_disable:
388358 	pci_disable_device(pdev);
389359 err_free:
390
-	drm_dev_unref(dev);
360
+	drm_dev_put(dev);
391361 
392362 	return ret;
393363 }
....@@ -398,11 +368,10 @@
398368 
399369 	drm_dev_unregister(dev);
400370 	hibmc_unload(dev);
401
-	drm_dev_unref(dev);
402371 }
403372 
404373 static struct pci_device_id hibmc_pci_table[] = {
405
-	{0x19e5, 0x1711, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
374
+	{ PCI_VDEVICE(HUAWEI, 0x1711) },
406375 	{0,}
407376 };
408377 
....@@ -414,18 +383,7 @@
414383 	.driver.pm =    &hibmc_pm_ops,
415384 };
416385 
417
-static int __init hibmc_init(void)
418
-{
419
-	return pci_register_driver(&hibmc_pci_driver);
420
-}
421
-
422
-static void __exit hibmc_exit(void)
423
-{
424
-	return pci_unregister_driver(&hibmc_pci_driver);
425
-}
426
-
427
-module_init(hibmc_init);
428
-module_exit(hibmc_exit);
386
+module_pci_driver(hibmc_pci_driver);
429387 
430388 MODULE_DEVICE_TABLE(pci, hibmc_pci_table);
431389 MODULE_AUTHOR("RongrongZou <zourongrong@huawei.com>");