Commit 6c01bbd2 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman

powerpc/mm: Fix page table dump build on PPC32

On PPC32 (eg. mpc885_ads_defconfig), page table dump compilation fails as
follows. This is because the memory layout is slightly different on PPC32. This
patch adapts it.

  arch/powerpc/mm/dump_linuxpagetables.c: In function 'walk_pagetables':
  arch/powerpc/mm/dump_linuxpagetables.c:369:10: error: 'KERN_VIRT_START' undeclared (first use in this function)
  ...

Fixes: 8eb07b18 ("powerpc/mm: Dump linux pagetables")
Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent a5998fcb
...@@ -26,6 +26,10 @@ ...@@ -26,6 +26,10 @@
#include <asm/page.h> #include <asm/page.h>
#include <asm/pgalloc.h> #include <asm/pgalloc.h>
#ifdef CONFIG_PPC32
#define KERN_VIRT_START 0
#endif
/* /*
* To visualise what is happening, * To visualise what is happening,
* *
...@@ -71,6 +75,7 @@ static struct addr_marker address_markers[] = { ...@@ -71,6 +75,7 @@ static struct addr_marker address_markers[] = {
{ 0, "Start of kernel VM" }, { 0, "Start of kernel VM" },
{ 0, "vmalloc() Area" }, { 0, "vmalloc() Area" },
{ 0, "vmalloc() End" }, { 0, "vmalloc() End" },
#ifdef CONFIG_PPC64
{ 0, "isa I/O start" }, { 0, "isa I/O start" },
{ 0, "isa I/O end" }, { 0, "isa I/O end" },
{ 0, "phb I/O start" }, { 0, "phb I/O start" },
...@@ -78,6 +83,20 @@ static struct addr_marker address_markers[] = { ...@@ -78,6 +83,20 @@ static struct addr_marker address_markers[] = {
{ 0, "I/O remap start" }, { 0, "I/O remap start" },
{ 0, "I/O remap end" }, { 0, "I/O remap end" },
{ 0, "vmemmap start" }, { 0, "vmemmap start" },
#else
{ 0, "Early I/O remap start" },
{ 0, "Early I/O remap end" },
#ifdef CONFIG_NOT_COHERENT_CACHE
{ 0, "Consistent mem start" },
{ 0, "Consistent mem end" },
#endif
#ifdef CONFIG_HIGHMEM
{ 0, "Highmem PTEs start" },
{ 0, "Highmem PTEs end" },
#endif
{ 0, "Fixmap start" },
{ 0, "Fixmap end" },
#endif
{ -1, NULL }, { -1, NULL },
}; };
...@@ -404,20 +423,38 @@ static void walk_pagetables(struct pg_state *st) ...@@ -404,20 +423,38 @@ static void walk_pagetables(struct pg_state *st)
static void populate_markers(void) static void populate_markers(void)
{ {
address_markers[0].start_address = PAGE_OFFSET; int i = 0;
address_markers[1].start_address = VMALLOC_START;
address_markers[2].start_address = VMALLOC_END; address_markers[i++].start_address = PAGE_OFFSET;
address_markers[3].start_address = ISA_IO_BASE; address_markers[i++].start_address = VMALLOC_START;
address_markers[4].start_address = ISA_IO_END; address_markers[i++].start_address = VMALLOC_END;
address_markers[5].start_address = PHB_IO_BASE; #ifdef CONFIG_PPC64
address_markers[6].start_address = PHB_IO_END; address_markers[i++].start_address = ISA_IO_BASE;
address_markers[7].start_address = IOREMAP_BASE; address_markers[i++].start_address = ISA_IO_END;
address_markers[8].start_address = IOREMAP_END; address_markers[i++].start_address = PHB_IO_BASE;
address_markers[i++].start_address = PHB_IO_END;
address_markers[i++].start_address = IOREMAP_BASE;
address_markers[i++].start_address = IOREMAP_END;
#ifdef CONFIG_PPC_STD_MMU_64 #ifdef CONFIG_PPC_STD_MMU_64
address_markers[9].start_address = H_VMEMMAP_BASE; address_markers[i++].start_address = H_VMEMMAP_BASE;
#else #else
address_markers[9].start_address = VMEMMAP_BASE; address_markers[i++].start_address = VMEMMAP_BASE;
#endif
#else /* !CONFIG_PPC64 */
address_markers[i++].start_address = ioremap_bot;
address_markers[i++].start_address = IOREMAP_TOP;
#ifdef CONFIG_NOT_COHERENT_CACHE
address_markers[i++].start_address = IOREMAP_TOP;
address_markers[i++].start_address = IOREMAP_TOP +
CONFIG_CONSISTENT_SIZE;
#endif
#ifdef CONFIG_HIGHMEM
address_markers[i++].start_address = PKMAP_BASE;
address_markers[i++].start_address = PKMAP_ADDR(LAST_PKMAP);
#endif #endif
address_markers[i++].start_address = FIXADDR_START;
address_markers[i++].start_address = FIXADDR_TOP;
#endif /* CONFIG_PPC64 */
} }
static int ptdump_show(struct seq_file *m, void *v) static int ptdump_show(struct seq_file *m, void *v)
......
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