renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-18 18:23:53 +08:00
Code

arm64: head: match all affinity levels in the pen of the secondaries

Browse Source 
The reg property of the cpu nodes in the DT now contains all the
affinity levels in (MPIDR[39:32] and MPIDR[23:0]) and that's what
boot_secondary() writes in the pen, so increase the mask in
secondary_holding_pen accordingly.

Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Javi Merino 2012-08-29 18:32:18 +01:00 committed by Catalin Marinas
parent 4c7aa00213
commit 0359b0e2d0
2 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm64/include/asm/cputype.h
View File

@ -42,6 +42,8 @@
#define ARM_CPU_PART_FOUNDATION 0xD000
#define ARM_CPU_PART_CORTEX_A57 0xD070
#ifndef __ASSEMBLY__
/*
* The CPU ID never changes at run time, so we might as well tell the
* compiler that it's constant. Use this function to read the CPU ID
@ -72,4 +74,6 @@ static inline u32 __attribute_const__ read_cpuid_cachetype(void)
return read_cpuid(ID_CTR_EL0);
}
#endif /* __ASSEMBLY__ */
#endif

4
arch/arm64/kernel/head.S
View File

@ -26,6 +26,7 @@
#include <asm/assembler.h>
#include <asm/ptrace.h>
#include <asm/asm-offsets.h>
#include <asm/cputype.h>
#include <asm/memory.h>
#include <asm/thread_info.h>
#include <asm/pgtable-hwdef.h>
@ -229,7 +230,8 @@ ENTRY(secondary_holding_pen)
bl __calc_phys_offset // x24=phys offset
bl el2_setup // Drop to EL1
mrs x0, mpidr_el1
and x0, x0, #15 // CPU number
ldr x1, =MPIDR_HWID_BITMASK
and x0, x0, x1
adr x1, 1b
ldp x2, x3, [x1]
sub x1, x1, x2