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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 17:18:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 17:18:09 +0300
commita4fdb2a46f617b8b2cd47acec026ec16532edbc6 (patch)
tree8d993287c9337349034ce6bbe050f7ce016a5268 /drivers/of
parent807249d3ada1ff28a47c4054ca4edd479421b671 (diff)
parent674c242c9323d3c293fc4f9a3a3a619fe3063290 (diff)
downloadlinux-a4fdb2a46f617b8b2cd47acec026ec16532edbc6.tar.xz
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon: - Support for new architectural features introduced in ARMv8.1: * Privileged Access Never (PAN) to catch user pointer dereferences in the kernel * Large System Extension (LSE) for building scalable atomics and locks (depends on locking/arch-atomic from tip, which is included here) * Hardware Dirty Bit Management (DBM) for updating clean PTEs automatically - Move our PSCI implementation out into drivers/firmware/, where it can be shared with arch/arm/. RMK has also pulled this component branch and has additional patches moving arch/arm/ over. MAINTAINERS is updated accordingly. - Better BUG implementation based on the BRK instruction for trapping - Leaf TLB invalidation for unmapping user pages - Support for PROBE_ONLY PCI configurations - Various cleanups and non-critical fixes, including: * Always flush FP/SIMD state over exec() * Restrict memblock additions based on range of linear mapping * Ensure *(LIST_POISON) generates a fatal fault * Context-tracking syscall return no longer corrupts return value when not forced on. * Alternatives patching synchronisation/stability improvements * Signed sub-word cmpxchg compare fix (tickled by HAVE_CMPXCHG_LOCAL) * Force SMP=y * Hide direct DCC access from userspace * Fix EFI stub memory allocation when DRAM starts at 0x0 * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits) arm64: flush FP/SIMD state correctly after execve() arm64: makefile: fix perf_callchain.o kconfig dependency arm64: set MAX_MEMBLOCK_ADDR according to linear region size of/fdt: make memblock maximum physical address arch configurable arm64: Fix source code file path in comments arm64: entry: always restore x0 from the stack on syscall return arm64: mdscr_el1: avoid exposing DCC to userspace arm64: kconfig: Move LIST_POISON to a safe value arm64: Add __exception_irq_entry definition for function graph arm64: mm: ensure patched kernel text is fetched from PoU arm64: alternatives: ensure secondary CPUs execute ISB after patching arm64: make ll/sc __cmpxchg_case_##name asm consistent arm64: dma-mapping: Simplify pgprot handling arm64: restore cpu suspend/resume functionality ARM64: PCI: do not enable resources on PROBE_ONLY systems arm64: cmpxchg: truncate sub-word signed types before comparison arm64: alternative: put secondary CPUs into polling loop during patch arm64/Documentation: clarify wording regarding memory below the Image arm64: lse: fix lse cmpxchg code indentation arm64: remove redundant object file list ...
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/fdt.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 07496560e5b9..6e82bc42373b 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -967,7 +967,9 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
}
#ifdef CONFIG_HAVE_MEMBLOCK
-#define MAX_PHYS_ADDR ((phys_addr_t)~0)
+#ifndef MAX_MEMBLOCK_ADDR
+#define MAX_MEMBLOCK_ADDR ((phys_addr_t)~0)
+#endif
void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
{
@@ -984,16 +986,16 @@ void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
}
size &= PAGE_MASK;
- if (base > MAX_PHYS_ADDR) {
+ if (base > MAX_MEMBLOCK_ADDR) {
pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",
base, base + size);
return;
}
- if (base + size - 1 > MAX_PHYS_ADDR) {
+ if (base + size - 1 > MAX_MEMBLOCK_ADDR) {
pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",
- ((u64)MAX_PHYS_ADDR) + 1, base + size);
- size = MAX_PHYS_ADDR - base + 1;
+ ((u64)MAX_MEMBLOCK_ADDR) + 1, base + size);
+ size = MAX_MEMBLOCK_ADDR - base + 1;
}
if (base + size < phys_offset) {