diff options
Diffstat (limited to 'linux-core/drm_ioctl.c')
| -rw-r--r-- | linux-core/drm_ioctl.c | 75 |
1 files changed, 74 insertions, 1 deletions
diff --git a/linux-core/drm_ioctl.c b/linux-core/drm_ioctl.c index 8d98000f..ac54cae9 100644 --- a/linux-core/drm_ioctl.c +++ b/linux-core/drm_ioctl.c @@ -36,6 +36,7 @@ #define __NO_VERSION__ #include "drmP.h" +#include "linux/pci.h" /** * Get interrupt from bus id. @@ -140,7 +141,9 @@ int DRM(getunique)(struct inode *inode, struct file *filp, * \return zero on success or a negative number on failure. * * Copies the bus id from userspace into drm_device::unique, and searches for - * the respective PCI device, updating drm_device::pdev. + * the respective PCI device, updating drm_device::pdev. Deprecated in + * interface version 1.1 and will return EBUSY when setversion has requested + * version 1.1 or greater. */ int DRM(setunique)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) @@ -218,6 +221,36 @@ int DRM(setunique)(struct inode *inode, struct file *filp, return 0; } +static int +DRM(set_busid)(drm_device_t *dev) +{ + if (dev->unique != NULL) + return EBUSY; + + dev->unique_len = 20; + dev->unique = DRM(alloc)(dev->unique_len + 1, DRM_MEM_DRIVER); + if (dev->unique == NULL) + return ENOMEM; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74) + snprintf(dev->unique, dev->unique_len, "pci:%s", pci_name(dev->pdev)); +#else + { + int domain = 0; +#ifdef __alpha__ + struct pci_controller *hose = pci_dev->sysdata; + + domain = hose->bus->number; +#endif + snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d", + domain, dev->pdev->bus->number, + PCI_SLOT(dev->pdev->devfn), PCI_FUNC(dev->pdev->devfn)); + } +#endif + + return 0; +} + /** * Get a mapping information. @@ -364,3 +397,43 @@ int DRM(getstats)( struct inode *inode, struct file *filp, return -EFAULT; return 0; } + +int DRM(setversion)(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_set_version_t sv; + drm_set_version_t retv; + + DRM_COPY_FROM_USER_IOCTL(sv, (drm_set_version_t *)data, sizeof(sv)); + + retv.drm_di_major = 1; + retv.drm_di_minor = 1; + retv.drm_dd_major = DRIVER_MAJOR; + retv.drm_dd_minor = DRIVER_MINOR; + + DRM_COPY_TO_USER_IOCTL((drm_set_version_t *)data, retv, sizeof(sv)); + + if (sv.drm_di_major != -1) { + if (sv.drm_di_major != 1 || sv.drm_di_minor < 0) + return EINVAL; + if (sv.drm_di_minor > 1) + return EINVAL; + if (sv.drm_di_minor >= 1) { + /* + * Version 1.1 includes tying of DRM to specific device + */ + DRM(set_busid)(dev); + } + } + + if (sv.drm_dd_major != -1) { + if (sv.drm_dd_major != DRIVER_MAJOR || sv.drm_dd_minor < 0) + return EINVAL; + if (sv.drm_dd_minor > DRIVER_MINOR) + return EINVAL; +#ifdef DRIVER_SETVERSION + DRIVER_SETVERSION(dev, sv); +#endif + } + return 0; +} |