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Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

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Pull ARM fixes from Russell King:
 "A small set of ARM fixes for -rc3, most of them not far off
  one-liners, with the exception of fixing the V7 cache invalidation for
  incoming SMP processors which was causing problems for SoCFPGA
  devices"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: fix __virt_to_idmap build error on !MMU
  ARM: invalidate L1 before enabling coherency
  ARM: 8404/1: dma-mapping: fix off-by-one error in bitmap size check
  ARM: 8402/1: perf: Don't use of_node after putting it
  ARM: 8400/1: use virt_to_idmap to get phys_reset address
This commit is contained in:
Linus Torvalds 2015-07-18 11:03:48 -07:00
commit 9d37e6679d
5 changed files with 14 additions and 9 deletions
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2
arch/arm/include/asm/memory.h
View File

@ -286,7 +286,7 @@ extern phys_addr_t (*arch_virt_to_idmap)(unsigned long x);
*/
static inline phys_addr_t __virt_to_idmap(unsigned long x)
{
if (arch_virt_to_idmap)
if (IS_ENABLED(CONFIG_MMU) && arch_virt_to_idmap)
return arch_virt_to_idmap(x);
else
return __virt_to_phys(x);

3
arch/arm/kernel/perf_event.c
View File

@ -818,12 +818,13 @@ static int of_pmu_irq_cfg(struct arm_pmu *pmu)
if (arch_find_n_match_cpu_physical_id(dn, cpu, NULL))
break;
of_node_put(dn);
if (cpu >= nr_cpu_ids) {
pr_warn("Failed to find logical CPU for %s\n",
dn->name);
of_node_put(dn);
break;
}
of_node_put(dn);
irqs[i] = cpu;
cpumask_set_cpu(cpu, &pmu->supported_cpus);

2
arch/arm/kernel/reboot.c
View File

@ -50,7 +50,7 @@ static void __soft_restart(void *addr)
flush_cache_all();
/* Switch to the identity mapping. */
phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
phys_reset = (phys_reset_t)(unsigned long)virt_to_idmap(cpu_reset);
phys_reset((unsigned long)addr);
/* Should never get here. */

2
arch/arm/mm/dma-mapping.c
View File

@ -1971,7 +1971,7 @@ static int extend_iommu_mapping(struct dma_iommu_mapping *mapping)
{
int next_bitmap;
if (mapping->nr_bitmaps > mapping->extensions)
if (mapping->nr_bitmaps >= mapping->extensions)
return -EINVAL;
next_bitmap = mapping->nr_bitmaps;

14
arch/arm/mm/proc-v7.S
View File

@ -274,7 +274,10 @@ __v7_ca15mp_setup:
__v7_b15mp_setup:
__v7_ca17mp_setup:
mov r10, #0
1:
1: adr r12, __v7_setup_stack @ the local stack
stmia r12, {r0-r5, lr} @ v7_invalidate_l1 touches r0-r6
bl v7_invalidate_l1
ldmia r12, {r0-r5, lr}
#ifdef CONFIG_SMP
ALT_SMP(mrc p15, 0, r0, c1, c0, 1)
ALT_UP(mov r0, #(1 << 6)) @ fake it for UP
@ -283,7 +286,7 @@ __v7_ca17mp_setup:
orreq r0, r0, r10 @ Enable CPU-specific SMP bits
mcreq p15, 0, r0, c1, c0, 1
#endif
b __v7_setup
b __v7_setup_cont
/*
* Errata:
@ -413,10 +416,11 @@ __v7_pj4b_setup:
__v7_setup:
adr r12, __v7_setup_stack @ the local stack
stmia r12, {r0-r5, r7, r9, r11, lr}
stmia r12, {r0-r5, lr} @ v7_invalidate_l1 touches r0-r6
bl v7_invalidate_l1
ldmia r12, {r0-r5, r7, r9, r11, lr}
ldmia r12, {r0-r5, lr}
__v7_setup_cont:
and r0, r9, #0xff000000 @ ARM?
teq r0, #0x41000000
bne __errata_finish
@ -480,7 +484,7 @@ ENDPROC(__v7_setup)
.align 2
__v7_setup_stack:
.space 4 * 11 @ 11 registers
.space 4 * 7 @ 12 registers
__INITDATA