diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2018-11-05 14:54:29 -0800 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2018-11-26 15:50:31 -0600 |
| commit | c756c592e442ba101c91daed3524ba5b3a784ba6 (patch) | |
| tree | bcb00e0d80a5dd16f7a6933f93fe1e9126233d55 /arch/arm64/mm | |
| parent | fe7db7570379dafec67430bb843d2e78df89e7f1 (diff) | |
arm64: Utilize phys_initrd_start/phys_initrd_size
ARM64 is the only architecture that re-defines
__early_init_dt_declare_initrd() in order for that function to populate
initrd_start/initrd_end with physical addresses instead of virtual
addresses. Instead of having an override we can leverage
drivers/of/fdt.c populating phys_initrd_start/phys_initrd_size to
populate those variables for us.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/init.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 9d9582cac6c4..a66ffcde5f13 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -71,8 +71,8 @@ static int __init early_initrd(char *p) if (*endp == ',') { size = memparse(endp + 1, NULL); - initrd_start = start; - initrd_end = start + size; + phys_initrd_start = start; + phys_initrd_size = size; } return 0; } @@ -407,14 +407,14 @@ void __init arm64_memblock_init(void) memblock_add(__pa_symbol(_text), (u64)(_end - _text)); } - if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) { + if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && phys_initrd_size) { /* * Add back the memory we just removed if it results in the * initrd to become inaccessible via the linear mapping. * Otherwise, this is a no-op */ - u64 base = initrd_start & PAGE_MASK; - u64 size = PAGE_ALIGN(initrd_end) - base; + u64 base = phys_initrd_start & PAGE_MASK; + u64 size = PAGE_ALIGN(phys_initrd_size); /* * We can only add back the initrd memory if we don't end up @@ -458,15 +458,11 @@ void __init arm64_memblock_init(void) * pagetables with memblock. */ memblock_reserve(__pa_symbol(_text), _end - _text); -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) { - memblock_reserve(initrd_start, initrd_end - initrd_start); - + if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && phys_initrd_size) { /* the generic initrd code expects virtual addresses */ - initrd_start = __phys_to_virt(initrd_start); - initrd_end = __phys_to_virt(initrd_end); + initrd_start = __phys_to_virt(phys_initrd_start); + initrd_end = initrd_start + phys_initrd_size; } -#endif early_init_fdt_scan_reserved_mem(); |