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drm: add in-kernel entry points for rest of AGP ioctls

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Allow DRM modules to call AGP internally in the kernel.

From: Ian Romanick <idr@us.ibm.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie 2005-11-11 22:33:39 +11:00 committed by Dave Airlie
parent 732052ed3e
commit efa58395be
4 changed files with 95 additions and 52 deletions
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12
drivers/char/drm/drmP.h
View File

@ -925,13 +925,17 @@ extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int drm_agp_alloc(struct inode *inode, struct file *filp,
extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int drm_agp_free(struct inode *inode, struct file *filp,
extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int drm_agp_unbind(struct inode *inode, struct file *filp,
extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int drm_agp_bind(struct inode *inode, struct file *filp,
extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
size_t pages, u32 type);

123
drivers/char/drm/drm_agpsupport.c
View File

@ -208,30 +208,22 @@ int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
* Verifies the AGP device is present and has been acquired, allocates the
* memory via alloc_agp() and creates a drm_agp_mem entry for it.
*/
int drm_agp_alloc(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_buffer_t request;
drm_agp_mem_t *entry;
DRM_AGP_MEM *memory;
unsigned long pages;
u32 type;
drm_agp_buffer_t __user *argp = (void __user *)arg;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
if (copy_from_user(&request, argp, sizeof(request)))
return -EFAULT;
if (!(entry = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS)))
return -ENOMEM;
memset(entry, 0, sizeof(*entry));
pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
type = (u32) request.type;
pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
type = (u32) request->type;
if (!(memory = drm_alloc_agp(dev, pages, type))) {
drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
return -ENOMEM;
@ -247,16 +239,39 @@ int drm_agp_alloc(struct inode *inode, struct file *filp,
dev->agp->memory->prev = entry;
dev->agp->memory = entry;
request.handle = entry->handle;
request.physical = memory->physical;
request->handle = entry->handle;
request->physical = memory->physical;
return 0;
}
EXPORT_SYMBOL(drm_agp_alloc);
int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_buffer_t request;
drm_agp_buffer_t __user *argp = (void __user *)arg;
int err;
if (copy_from_user(&request, argp, sizeof(request)))
return -EFAULT;
err = drm_agp_alloc(dev, &request);
if (err)
return err;
if (copy_to_user(argp, &request, sizeof(request))) {
drm_agp_mem_t *entry = dev->agp->memory;
dev->agp->memory = entry->next;
dev->agp->memory->prev = NULL;
drm_free_agp(memory, pages);
drm_free_agp(entry->memory, entry->pages);
drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
return -EFAULT;
}
return 0;
}
@ -293,21 +308,14 @@ static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t * dev,
* Verifies the AGP device is present and acquired, looks-up the AGP memory
* entry and passes it to the unbind_agp() function.
*/
int drm_agp_unbind(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_binding_t request;
drm_agp_mem_t *entry;
int ret;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
if (copy_from_user
(&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
return -EFAULT;
if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
return -EINVAL;
if (!entry->bound)
return -EINVAL;
@ -316,6 +324,21 @@ int drm_agp_unbind(struct inode *inode, struct file *filp,
entry->bound = 0;
return ret;
}
EXPORT_SYMBOL(drm_agp_unbind);
int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_binding_t request;
if (copy_from_user
(&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
return -EFAULT;
return drm_agp_unbind(dev, &request);
}
/**
* Bind AGP memory into the GATT (ioctl)
@ -330,26 +353,19 @@ int drm_agp_unbind(struct inode *inode, struct file *filp,
* is currently bound into the GATT. Looks-up the AGP memory entry and passes
* it to bind_agp() function.
*/
int drm_agp_bind(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_binding_t request;
drm_agp_mem_t *entry;
int retcode;
int page;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
if (copy_from_user
(&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
return -EFAULT;
if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
return -EINVAL;
if (entry->bound)
return -EINVAL;
page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
if ((retcode = drm_bind_agp(entry->memory, page)))
return retcode;
entry->bound = dev->agp->base + (page << PAGE_SHIFT);
@ -357,6 +373,21 @@ int drm_agp_bind(struct inode *inode, struct file *filp,
dev->agp->base, entry->bound);
return 0;
}
EXPORT_SYMBOL(drm_agp_bind);
int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_binding_t request;
if (copy_from_user
(&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
return -EFAULT;
return drm_agp_bind(dev, &request);
}
/**
* Free AGP memory (ioctl).
@ -372,20 +403,13 @@ int drm_agp_bind(struct inode *inode, struct file *filp,
* unbind_agp(). Frees it via free_agp() as well as the entry itself
* and unlinks from the doubly linked list it's inserted in.
*/
int drm_agp_free(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_buffer_t request;
drm_agp_mem_t *entry;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
if (copy_from_user
(&request, (drm_agp_buffer_t __user *) arg, sizeof(request)))
return -EFAULT;
if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
return -EINVAL;
if (entry->bound)
drm_unbind_agp(entry->memory);
@ -402,6 +426,21 @@ int drm_agp_free(struct inode *inode, struct file *filp,
drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
return 0;
}
EXPORT_SYMBOL(drm_agp_free);
int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->head->dev;
drm_agp_buffer_t request;
if (copy_from_user
(&request, (drm_agp_buffer_t __user *) arg, sizeof(request)))
return -EFAULT;
return drm_agp_free(dev, &request);
}
/**
* Initialize the AGP resources.

4
drivers/char/drm/drm_core.h
View File

@ -24,11 +24,11 @@
#define CORE_NAME "drm"
#define CORE_DESC "DRM shared core routines"
#define CORE_DATE "20040925"
#define CORE_DATE "20051102"
#define DRM_IF_MAJOR 1
#define DRM_IF_MINOR 2
#define CORE_MAJOR 1
#define CORE_MINOR 0
#define CORE_PATCHLEVEL 0
#define CORE_PATCHLEVEL 1

8
drivers/char/drm/drm_drv.c
View File

@ -106,10 +106,10 @@ static drm_ioctl_desc_t drm_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = {drm_agp_release_ioctl, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = {drm_agp_enable_ioctl, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = {drm_agp_info_ioctl, 1, 0},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_bind, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_unbind, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc_ioctl, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free_ioctl, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_bind_ioctl, 1, 1},
[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_unbind_ioctl, 1, 1},
#endif
[DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = {drm_sg_alloc, 1, 1},