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arm64: Use __pa_symbol for kernel symbols

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__pa_symbol is technically the marcro that should be used for kernel
symbols. Switch to this as a pre-requisite for DEBUG_VIRTUAL which
will do bounds checking.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Laura Abbott
2017-01-10 13:35:49 -08:00
committed by Will Deacon
parent 869dcfd10d
commit 2077be6783
16 changed files with 76 additions and 57 deletions
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12
arch/arm64/mm/init.c
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@@ -36,6 +36,7 @@
#include <linux/efi.h>
#include <linux/swiotlb.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <asm/boot.h>
#include <asm/fixmap.h>
@@ -209,8 +210,8 @@ void __init arm64_memblock_init(void)
* linear mapping. Take care not to clip the kernel which may be
* high in memory.
*/
memblock_remove(max_t(u64, memstart_addr + linear_region_size, __pa(_end)),
ULLONG_MAX);
memblock_remove(max_t(u64, memstart_addr + linear_region_size,
__pa_symbol(_end)), ULLONG_MAX);
if (memstart_addr + linear_region_size < memblock_end_of_DRAM()) {
/* ensure that memstart_addr remains sufficiently aligned */
memstart_addr = round_up(memblock_end_of_DRAM() - linear_region_size,
@@ -225,7 +226,7 @@ void __init arm64_memblock_init(void)
*/
if (memory_limit != (phys_addr_t)ULLONG_MAX) {
memblock_mem_limit_remove_map(memory_limit);
memblock_add(__pa(_text), (u64)(_end - _text));
memblock_add(__pa_symbol(_text), (u64)(_end - _text));
}
if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
@@ -278,7 +279,7 @@ void __init arm64_memblock_init(void)
* Register the kernel text, kernel data, initrd, and initial
* pagetables with memblock.
*/
memblock_reserve(__pa(_text), _end - _text);
memblock_reserve(__pa_symbol(_text), _end - _text);
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start) {
memblock_reserve(initrd_start, initrd_end - initrd_start);
@@ -484,7 +485,8 @@ void __init mem_init(void)
void free_initmem(void)
{
free_reserved_area(__va(__pa(__init_begin)), __va(__pa(__init_end)),
free_reserved_area(lm_alias(__init_begin),
lm_alias(__init_end),
0, "unused kernel");
/*
* Unmap the __init region but leave the VM area in place. This