mirror of
https://gitlab.freedesktop.org/mesa/drm.git
synced 2025-12-20 15:10:10 +01:00
49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
#define __NO_VERSION__
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#include <linux/interrupt.h> /* For task queue support */
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#include <linux/delay.h>
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#define DRM_OS_IOCTL struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data
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#define DRM_OS_RETURN(d) return -(d)
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#define DRM_OS_ERR(d) -(d)
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#define DRM_OS_CURRENTPID current->pid
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#define DRM_OS_DELAY(d) udelay(d)
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#define DRM_OS_READ8(addr) readb(addr)
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#define DRM_OS_READ32(addr) readl(addr)
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#define DRM_OS_WRITE8(addr, val) writeb(val, addr)
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#define DRM_OS_WRITE32(addr, val) writel(val, addr)
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#define DRM_OS_READMEMORYBARRIER mb()
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#define DRM_OS_WRITEMEMORYBARRIER wmb()
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/* For data going from/to the kernel through the ioctl argument */
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#define DRM_OS_KRNFROMUSR(arg1, arg2, arg3) \
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if ( copy_from_user(&arg1, arg2, arg3) ) \
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return -EFAULT
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#define DRM_OS_KRNTOUSR(arg1, arg2, arg3) \
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if ( copy_to_user(arg1, &arg2, arg3) ) \
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return -EFAULT
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/* Other copying of data from/to kernel space */
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#define DRM_OS_COPYFROMUSR(arg1, arg2, arg3) \
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copy_from_user(arg1, arg2, arg3)
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#define DRM_OS_COPYTOUSR(arg1, arg2, arg3) \
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copy_to_user(arg1, arg2, arg3)
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/* malloc/free without the overhead of DRM(alloc) */
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#define DRM_OS_MALLOC(x) kmalloc(x, GFP_KERNEL)
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#define DRM_OS_FREE(x) kfree(x)
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#define DRM_OS_GETSAREA() \
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do { \
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struct list_head *list; \
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list_for_each( list, &dev->maplist->head ) { \
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drm_map_list_t *entry = (drm_map_list_t *)list; \
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if ( entry->map && \
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entry->map->type == _DRM_SHM && \
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(entry->map->flags & _DRM_CONTAINS_LOCK) ) { \
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dev_priv->sarea = entry->map; \
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break; \
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} \
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} \
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} while (0)
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