Skip to main content

Browse the archive

Revision 8f4fd86aa5d6aa122619623910065d236592e37c authored by David Woodhouse on 06 January 2021, 15:39:55 UTC, committed by Juergen Gross on 13 January 2021, 15:12:03 UTC 
xen: Set platform PCI device INTX affinity to CPU0
 
With INTX or GSI delivery, Xen uses the event channel structures of CPU0.

If the interrupt gets handled by Linux on a different CPU, then no events
are seen as pending. Rather than introducing locking to allow other CPUs
to process CPU0's events, just ensure that the PCI interrupts happens
only on CPU0.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210106153958.584169-3-dwmw2@infradead.org
Signed-off-by: Juergen Gross <jgross@suse.com>
1 parent 3499ba8
Raw File
wmt_ge_rops.h 
/* SPDX-License-Identifier: GPL-2.0 */
#ifdef CONFIG_FB_WMT_GE_ROPS

extern void wmt_ge_fillrect(struct fb_info *info,
			    const struct fb_fillrect *rect);
extern void wmt_ge_copyarea(struct fb_info *info,
			    const struct fb_copyarea *area);
extern int wmt_ge_sync(struct fb_info *info);

#else

static inline int wmt_ge_sync(struct fb_info *p)
{
	return 0;
}

static inline void wmt_ge_fillrect(struct fb_info *p,
				    const struct fb_fillrect *rect)
{
	sys_fillrect(p, rect);
}

static inline void wmt_ge_copyarea(struct fb_info *p,
				     const struct fb_copyarea *area)
{
	sys_copyarea(p, area);
}

#endif
back to top