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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-03-16 13:16:25 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-03-19 16:38:16 +1100
commita93272969c6b1d59883fcbb04845420bd72c9a20 (patch)
tree16b980ded87e94ac4eee7375eaf38605fb69a211 /arch
parent09156a7a409cf93d1ca2706bf05d714879a5b7ea (diff)
downloadlinux-a93272969c6b1d59883fcbb04845420bd72c9a20.tar.bz2
powerpc: Fix swiotlb to respect the boot option
powerpc initializes swiotlb before parsing the kernel boot options so swiotlb options (e.g. specifying the swiotlb buffer size) are ignored. Any time before freeing bootmem works for swiotlb so this patch moves powerpc's swiotlb initialization after parsing the kernel boot options, mem_init (as x86 does). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Becky Bruce <beckyb@kernel.crashing.org> Tested-by: Albert Herranz <albert_herranz@yahoo.es> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/setup_32.c6
-rw-r--r--arch/powerpc/kernel/setup_64.c6
-rw-r--r--arch/powerpc/mm/mem.c6
3 files changed, 6 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index b152de3e64d4..8f58986c2ad9 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -39,7 +39,6 @@
#include <asm/serial.h>
#include <asm/udbg.h>
#include <asm/mmu_context.h>
-#include <asm/swiotlb.h>
#include "setup.h"
@@ -343,11 +342,6 @@ void __init setup_arch(char **cmdline_p)
ppc_md.setup_arch();
if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab);
-#ifdef CONFIG_SWIOTLB
- if (ppc_swiotlb_enable)
- swiotlb_init(1);
-#endif
-
paging_init();
/* Initialize the MMU context management stuff */
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 63547394048c..914389158a9b 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -61,7 +61,6 @@
#include <asm/xmon.h>
#include <asm/udbg.h>
#include <asm/kexec.h>
-#include <asm/swiotlb.h>
#include <asm/mmu_context.h>
#include "setup.h"
@@ -541,11 +540,6 @@ void __init setup_arch(char **cmdline_p)
if (ppc_md.setup_arch)
ppc_md.setup_arch();
-#ifdef CONFIG_SWIOTLB
- if (ppc_swiotlb_enable)
- swiotlb_init(1);
-#endif
-
paging_init();
/* Initialize the MMU context management stuff */
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 311224cdb7ad..448f972b22f5 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -48,6 +48,7 @@
#include <asm/sparsemem.h>
#include <asm/vdso.h>
#include <asm/fixmap.h>
+#include <asm/swiotlb.h>
#include "mmu_decl.h"
@@ -320,6 +321,11 @@ void __init mem_init(void)
struct page *page;
unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize;
+#ifdef CONFIG_SWIOTLB
+ if (ppc_swiotlb_enable)
+ swiotlb_init(1);
+#endif
+
num_physpages = lmb.memory.size >> PAGE_SHIFT;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);