dev/drm/drm_agpsupport.c

32 __FBSDID("$FreeBSD: releng/11.0/sys/dev/drm/drm_agpsupport.c 283999 2015-06-04 20:36:16Z jhb $");
39 #include "dev/drm/drmP.h"
41 #include <dev/agp/agpreg.h>
42 #include <dev/pci/pcireg.h>
46 drm_device_find_capability(struct drm_device *dev, int cap)
49 	return (pci_find_cap(dev->device, cap, NULL) == 0);
52 int drm_device_is_agp(struct drm_device *dev)
54 	if (dev->driver->device_is_agp != NULL) {
60 		ret = (*dev->driver->device_is_agp)(dev);
65 	return (drm_device_find_capability(dev, PCIY_AGP));
68 int drm_device_is_pcie(struct drm_device *dev)
70 	return (drm_device_find_capability(dev, PCIY_EXPRESS));
73 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info)
77 	if (!dev->agp || !dev->agp->acquired)
80 	kern                   = &dev->agp->info;
81 	agp_get_info(dev->agp->agpdev, kern);
95 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
101 	err = drm_agp_info(dev, &info);
109 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
113 	return drm_agp_acquire(dev);
116 int drm_agp_acquire(struct drm_device *dev)
120 	if (!dev->agp || dev->agp->acquired)
123 	retcode = agp_acquire(dev->agp->agpdev);
127 	dev->agp->acquired = 1;
131 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
135 	return drm_agp_release(dev);
138 int drm_agp_release(struct drm_device * dev)
140 	if (!dev->agp || !dev->agp->acquired)
142 	agp_release(dev->agp->agpdev);
143 	dev->agp->acquired = 0;
147 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode)
150 	if (!dev->agp || !dev->agp->acquired)
153 	dev->agp->mode    = mode.mode;
154 	agp_enable(dev->agp->agpdev, mode.mode);
155 	dev->agp->enabled = 1;
159 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
166 	return drm_agp_enable(dev, mode);
169 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
177 	if (!dev->agp || !dev->agp->acquired)
199 	entry->next      = dev->agp->memory;
200 	if (dev->agp->memory)
201 		dev->agp->memory->prev = entry;
202 	dev->agp->memory = entry;
204 	agp_memory_info(dev->agp->agpdev, entry->handle, &info);
212 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
221 	retcode = drm_agp_alloc(dev, &request);
229 static drm_agp_mem_t * drm_agp_lookup_entry(struct drm_device *dev,
234 	for (entry = dev->agp->memory; entry; entry = entry->next) {
240 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
245 	if (!dev->agp || !dev->agp->acquired)
248 	entry = drm_agp_lookup_entry(dev, (void *)request->handle);
262 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
271 	retcode = drm_agp_unbind(dev, &request);
277 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
283 	if (!dev->agp || !dev->agp->acquired)
288 	entry = drm_agp_lookup_entry(dev, (void *)request->handle);
298 		entry->bound = dev->agp->base + (page << PAGE_SHIFT);
303 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
312 	retcode = drm_agp_bind(dev, &request);
318 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
322 	if (!dev->agp || !dev->agp->acquired)
325 	entry = drm_agp_lookup_entry(dev, (void*)request->handle);
332 		dev->agp->memory  = entry->next;
348 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
357 	retcode = drm_agp_free(dev, &request);