diff options
Diffstat (limited to 'include/drm/drm_os_linux.h')
| -rw-r--r-- | include/drm/drm_os_linux.h | 55 | 
1 files changed, 0 insertions, 55 deletions
diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h deleted file mode 100644 index ee8d61b64f29..000000000000 --- a/include/drm/drm_os_linux.h +++ /dev/null @@ -1,55 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/** - * \file drm_os_linux.h - * OS abstraction macros. - */ - -#include <linux/interrupt.h>	/* For task queue support */ -#include <linux/sched/signal.h> -#include <linux/delay.h> -#include <linux/io-64-nonatomic-lo-hi.h> - -/** Current process ID */ -#define DRM_CURRENTPID			task_pid_nr(current) -#define DRM_UDELAY(d)			udelay(d) -/** Read a byte from a MMIO region */ -#define DRM_READ8(map, offset)		readb(((void __iomem *)(map)->handle) + (offset)) -/** Read a word from a MMIO region */ -#define DRM_READ16(map, offset)         readw(((void __iomem *)(map)->handle) + (offset)) -/** Read a dword from a MMIO region */ -#define DRM_READ32(map, offset)		readl(((void __iomem *)(map)->handle) + (offset)) -/** Write a byte into a MMIO region */ -#define DRM_WRITE8(map, offset, val)	writeb(val, ((void __iomem *)(map)->handle) + (offset)) -/** Write a word into a MMIO region */ -#define DRM_WRITE16(map, offset, val)   writew(val, ((void __iomem *)(map)->handle) + (offset)) -/** Write a dword into a MMIO region */ -#define DRM_WRITE32(map, offset, val)	writel(val, ((void __iomem *)(map)->handle) + (offset)) - -/** Read a qword from a MMIO region - be careful using these unless you really understand them */ -#define DRM_READ64(map, offset)		readq(((void __iomem *)(map)->handle) + (offset)) -/** Write a qword into a MMIO region */ -#define DRM_WRITE64(map, offset, val)	writeq(val, ((void __iomem *)(map)->handle) + (offset)) - -#define DRM_WAIT_ON( ret, queue, timeout, condition )		\ -do {								\ -	DECLARE_WAITQUEUE(entry, current);			\ -	unsigned long end = jiffies + (timeout);		\ -	add_wait_queue(&(queue), &entry);			\ -								\ -	for (;;) {						\ -		__set_current_state(TASK_INTERRUPTIBLE);	\ -		if (condition)					\ -			break;					\ -		if (time_after_eq(jiffies, end)) {		\ -			ret = -EBUSY;				\ -			break;					\ -		}						\ -		schedule_timeout((HZ/100 > 1) ? HZ/100 : 1);	\ -		if (signal_pending(current)) {			\ -			ret = -EINTR;				\ -			break;					\ -		}						\ -	}							\ -	__set_current_state(TASK_RUNNING);			\ -	remove_wait_queue(&(queue), &entry);			\ -} while (0)  |