/**
* \file drm_os_linux.h
* OS abstraction macros.
*/
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
#ifndef readq
static inline u64 readq(void __iomem *reg)
{
return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32);
}
static inline void writeq(u64 val, void __iomem *reg)
{
writel(val & 0xffffffff, reg);
writel(val >> 32, reg + 0x4UL);
}
#endif
/** 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)
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>xen</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/xenbus_dev.h?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>xenbus_dev.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='69973b830859bc6529a7a0468ba0d80ee5117826'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds <torvalds@linux-foundation.org></td><td class='right'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds <torvalds@linux-foundation.org></td><td class='right'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/xenbus_dev.h?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>69973b830859bc6529a7a0468ba0d80ee5117826</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/xen/xenbus_dev.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>5f11fe15ed9d9a3ab9c92242030e54b73ecdce45</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/xen/xenbus_dev.h?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>include/xen/xenbus_dev.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/xenbus_dev.h?h=nds-private-remove&id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>2e4333c14de06a333783d6812cf3c4998f78b0c8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/xen/xenbus_dev.h?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826&id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Linux 4.9</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&id=69973b830859bc6529a7a0468ba0d80ee5117826'>Diffstat</a> (limited to 'include/xen/xenbus_dev.h')</div><table summary='diffstat' class='diffstat'>