From 56f3c1413f5cce0c8f4d6f1ab79d790da5aa61af Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 9 Oct 2018 13:51:43 +0000 Subject: powerpc/mm: properly set PAGE_KERNEL flags in ioremap() Set PAGE_KERNEL directly in the caller and do not rely on a hack adding PAGE_KERNEL flags when _PAGE_PRESENT is not set. As already done for PPC64, use pgprot_cache() helpers instead of _PAGE_XXX flags in PPC32 ioremap() derived functions. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/4xx/ocm.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'arch/powerpc/platforms/4xx') diff --git a/arch/powerpc/platforms/4xx/ocm.c b/arch/powerpc/platforms/4xx/ocm.c index 69d9f60d9fe5..f5bbd4563342 100644 --- a/arch/powerpc/platforms/4xx/ocm.c +++ b/arch/powerpc/platforms/4xx/ocm.c @@ -113,7 +113,6 @@ static void __init ocm_init_node(int count, struct device_node *node) int len; struct resource rsrc; - int ioflags; ocm = ocm_get_node(count); @@ -179,9 +178,8 @@ static void __init ocm_init_node(int count, struct device_node *node) /* ioremap the non-cached region */ if (ocm->nc.memtotal) { - ioflags = _PAGE_NO_CACHE | _PAGE_GUARDED | _PAGE_EXEC; ocm->nc.virt = __ioremap(ocm->nc.phys, ocm->nc.memtotal, - ioflags); + _PAGE_EXEC | PAGE_KERNEL_NCG); if (!ocm->nc.virt) { printk(KERN_ERR @@ -195,9 +193,8 @@ static void __init ocm_init_node(int count, struct device_node *node) /* ioremap the cached region */ if (ocm->c.memtotal) { - ioflags = _PAGE_EXEC; ocm->c.virt = __ioremap(ocm->c.phys, ocm->c.memtotal, - ioflags); + _PAGE_EXEC | PAGE_KERNEL); if (!ocm->c.virt) { printk(KERN_ERR -- cgit v1.2.3