diff options
Diffstat (limited to 'arch/arm/mach-qcom')
| -rw-r--r-- | arch/arm/mach-qcom/scm.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/arm/mach-qcom/scm.c b/arch/arm/mach-qcom/scm.c index 820c72165e19..c08786ebf116 100644 --- a/arch/arm/mach-qcom/scm.c +++ b/arch/arm/mach-qcom/scm.c @@ -27,9 +27,6 @@ #include "scm.h" -/* Cache line size for msm8x60 */ -#define CACHELINESIZE 32 - #define SCM_ENOMEM -5 #define SCM_EOPNOTSUPP -4 #define SCM_EINVAL_ADDR -3 @@ -214,13 +211,18 @@ static int __scm_call(const struct scm_command *cmd) static void scm_inv_range(unsigned long start, unsigned long end) { - start = round_down(start, CACHELINESIZE); - end = round_up(end, CACHELINESIZE); + u32 cacheline_size, ctr; + + asm volatile("mrc p15, 0, %0, c0, c0, 1" : "=r" (ctr)); + cacheline_size = 4 << ((ctr >> 16) & 0xf); + + start = round_down(start, cacheline_size); + end = round_up(end, cacheline_size); outer_inv_range(start, end); while (start < end) { asm ("mcr p15, 0, %0, c7, c6, 1" : : "r" (start) : "memory"); - start += CACHELINESIZE; + start += cacheline_size; } dsb(); isb(); |