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drm: fix drm_cache.c for arch with no support. 

This produces a warn on for architectures where this gets called
but we don't have a cache flushing implementation suitable.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2009-09-02 09:41:13 +10:00
parent fa8a123855
commit ed017d9fb1
1 changed files with 3 additions and 6 deletions
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9
drivers/gpu/drm/drm_cache.c
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@ -62,11 +62,8 @@ drm_clflush_ipi_handler(void *null)
{ {
wbinvd(); wbinvd();
} }
#elif !defined(__powerpc__)
static void drm_cache_ipi_handler(void *dummy)
{
}
#endif #endif
void void
drm_clflush_pages(struct page *pages[], unsigned long num_pages) drm_clflush_pages(struct page *pages[], unsigned long num_pages)
{ {
@ -95,8 +92,8 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
kunmap_atomic(page_virtual, KM_USER0); kunmap_atomic(page_virtual, KM_USER0);
} }
#else #else
if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0) printk(KERN_ERR "Architecture has no drm_cache.c support\n");
printk(KERN_ERR "Timed out waiting for drm cache flush\n"); WARN_ON_ONCE(1);
#endif #endif
} }
EXPORT_SYMBOL(drm_clflush_pages); EXPORT_SYMBOL(drm_clflush_pages);