Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'arc-4.4-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- Fix for perf callgraph unwinding causing RCU stalls
- Fix to enable Linux to run on non-default Interrupt priority 0
- Removal of pointless SYNC from __switch_to()
* tag 'arc-4.4-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: dw2 unwind: Remove falllback linear search thru FDE entries
ARC: remove SYNC from __switch_to()
ARCv2: Use the default irq priority for idle sleep
ARC: Abstract out ISA specific SLEEP args
ARC: comments update
ARC: switch to arc-linux- CROSS_COMPILE prefix across all configs
+24
-54
+1
-1
arch/arc/configs/axs101_defconfig
+1
-1
arch/arc/configs/axs101_defconfig
+1
-1
arch/arc/configs/axs103_defconfig
+1
-1
arch/arc/configs/axs103_defconfig
+1
-1
arch/arc/configs/axs103_smp_defconfig
+1
-1
arch/arc/configs/axs103_smp_defconfig
+1
-1
arch/arc/configs/nsim_hs_defconfig
+1
-1
arch/arc/configs/nsim_hs_defconfig
+1
-1
arch/arc/configs/nsim_hs_smp_defconfig
+1
-1
arch/arc/configs/nsim_hs_smp_defconfig
+1
-1
arch/arc/configs/nsimosci_hs_defconfig
+1
-1
arch/arc/configs/nsimosci_hs_defconfig
+1
-1
arch/arc/configs/nsimosci_hs_smp_defconfig
+1
-1
arch/arc/configs/nsimosci_hs_smp_defconfig
+1
-1
arch/arc/configs/vdk_hs38_defconfig
+1
-1
arch/arc/configs/vdk_hs38_defconfig
+1
-1
arch/arc/configs/vdk_hs38_smp_defconfig
+1
-1
arch/arc/configs/vdk_hs38_smp_defconfig
+3
arch/arc/include/asm/irqflags-arcv2.h
+3
arch/arc/include/asm/irqflags-arcv2.h
+2
arch/arc/include/asm/irqflags-compact.h
+2
arch/arc/include/asm/irqflags-compact.h
-2
arch/arc/kernel/ctx_sw.c
-2
arch/arc/kernel/ctx_sw.c
-3
arch/arc/kernel/ctx_sw_asm.S
-3
arch/arc/kernel/ctx_sw_asm.S
+4
-5
arch/arc/kernel/process.c
+4
-5
arch/arc/kernel/process.c
···
44
44
void arch_cpu_idle(void)
45
45
{
46
46
/* sleep, but enable all interrupts before committing */
47
-
if (is_isa_arcompact()) {
48
-
__asm__("sleep 0x3");
49
-
} else {
50
-
__asm__("sleep 0x10");
51
-
}
47
+
__asm__ __volatile__(
48
+
"sleep %0 \n"
49
+
:
50
+
:"I"(ISA_SLEEP_ARG)); /* can't be "r" has to be embedded const */
52
51
}
53
52
54
53
asmlinkage void ret_from_fork(void);
+4
-33
arch/arc/kernel/unwind.c
+4
-33
arch/arc/kernel/unwind.c
···
986
986
(const u8 *)(fde +
987
987
1) +
988
988
*fde, ptrType);
989
-
if (pc >= endLoc)
989
+
if (pc >= endLoc) {
990
990
fde = NULL;
991
-
} else
992
-
fde = NULL;
993
-
}
994
-
if (fde == NULL) {
995
-
for (fde = table->address, tableSize = table->size;
996
-
cie = NULL, tableSize > sizeof(*fde)
997
-
&& tableSize - sizeof(*fde) >= *fde;
998
-
tableSize -= sizeof(*fde) + *fde,
999
-
fde += 1 + *fde / sizeof(*fde)) {
1000
-
cie = cie_for_fde(fde, table);
1001
-
if (cie == &bad_cie) {
1002
991
cie = NULL;
1003
-
break;
1004
992
}
1005
-
if (cie == NULL
1006
-
|| cie == ¬_fde
1007
-
|| (ptrType = fde_pointer_type(cie)) < 0)
1008
-
continue;
1009
-
ptr = (const u8 *)(fde + 2);
1010
-
startLoc = read_pointer(&ptr,
1011
-
(const u8 *)(fde + 1) +
1012
-
*fde, ptrType);
1013
-
if (!startLoc)
1014
-
continue;
1015
-
if (!(ptrType & DW_EH_PE_indirect))
1016
-
ptrType &=
1017
-
DW_EH_PE_FORM | DW_EH_PE_signed;
1018
-
endLoc =
1019
-
startLoc + read_pointer(&ptr,
1020
-
(const u8 *)(fde +
1021
-
1) +
1022
-
*fde, ptrType);
1023
-
if (pc >= startLoc && pc < endLoc)
1024
-
break;
993
+
} else {
994
+
fde = NULL;
995
+
cie = NULL;
1025
996
}
1026
997
}
1027
998
}
+2
-2
arch/arc/mm/tlb.c
+2
-2
arch/arc/mm/tlb.c
···
619
619
620
620
int dirty = !test_and_set_bit(PG_dc_clean, &page->flags);
621
621
if (dirty) {
622
-
/* wback + inv dcache lines */
622
+
/* wback + inv dcache lines (K-mapping) */
623
623
__flush_dcache_page(paddr, paddr);
624
624
625
-
/* invalidate any existing icache lines */
625
+
/* invalidate any existing icache lines (U-mapping) */
626
626
if (vma->vm_flags & VM_EXEC)
627
627
__inv_icache_page(paddr, vaddr);
628
628
}