From 7a9d12568e34e37a72d9e00ce01b62dec527e663 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Sun, 28 Nov 2010 18:26:36 +0000 Subject: [PATCH] powerpc: Record vma->phys_addr in ioremap() The vmalloc code can track the physical address of a vma, when the vma is used for ioremap, if set it is displayed in /proc/vmallocinfo. Because get_vm_area_caller() doesn't know it's being called for ioremap() it's up to the arch code to set the phys_addr. A bunch of other arch's do this, I'm not sure why powerpc doesn't? Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/pgtable_32.c | 1 + arch/powerpc/mm/pgtable_64.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index a87ead0138b..71932d000a7 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -230,6 +230,7 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, unsigned long flags, area = get_vm_area_caller(size, VM_IOREMAP, caller); if (area == 0) return NULL; + area->phys_addr = p; v = (unsigned long) area->addr; } else { v = (ioremap_bot -= size); diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 21d6dfab794..88927a05cdc 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -223,6 +223,8 @@ void __iomem * __ioremap_caller(phys_addr_t addr, unsigned long size, caller); if (area == NULL) return NULL; + + area->phys_addr = paligned; ret = __ioremap_at(paligned, area->addr, size, flags); if (!ret) vunmap(area->addr); -- 2.41.0