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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-04-16 15:24:33 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:24:33 -0700
commitdfbacdc1a0b568dfa69fb2c1b39b608074001083 (patch)
treef63fdb5db967253e46472ff776d1e22c38cee16e /arch/ppc64/kernel/pSeries_setup.c
parent7bbd827750e630003896c96d0212962276ee5d91 (diff)
[PATCH] ppc64: Fix semantics of __ioremap
This patch fixes ppc64 __ioremap() so that it stops adding implicitely _PAGE_GUARDED when the cache is not writeback, and instead, let the callers provide the flag they want here. This allows things like framebuffers to explicitely request a non-cacheable and non-guarded mapping which is more efficient for that type of memory without side effects. The patch also fixes all current callers to add _PAGE_GUARDED except btext, which is fine without it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64/kernel/pSeries_setup.c')
-rw-r--r--arch/ppc64/kernel/pSeries_setup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
index 06536de5125..6c0d1d58a55 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/ppc64/kernel/pSeries_setup.c
@@ -363,7 +363,7 @@ static void __init pSeries_init_early(void)
find_udbg_vterm();
else if (physport) {
/* Map the uart for udbg. */
- comport = (void *)__ioremap(physport, 16, _PAGE_NO_CACHE);
+ comport = (void *)ioremap(physport, 16);
udbg_init_uart(comport, default_speed);
ppc_md.udbg_putc = udbg_putc;