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-rw-r--r--src/soc/intel/common/block/cpu/car/cache_as_ram.S10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/cpu/car/cache_as_ram.S b/src/soc/intel/common/block/cpu/car/cache_as_ram.S
index 5408001d55..90da9e7232 100644
--- a/src/soc/intel/common/block/cpu/car/cache_as_ram.S
+++ b/src/soc/intel/common/block/cpu/car/cache_as_ram.S
@@ -506,12 +506,20 @@ find_llc_subleaf:
jnc set_eviction_mask
/*
- * RW data size / way size is equal to number of
+ * round(RW data size / way size) is equal to number of
* ways to be configured for non-eviction
*/
mov $CONFIG_DCACHE_RAM_SIZE, %eax
xor %edx, %edx /* Clear the upper 32-bit of dividend */
div %ecx
+ /*
+ * Increment data_ways by 1 if RW data size (CONFIG_DCACHE_RAM_SIZE) is
+ * not divisible by way_size (ECX)
+ */
+ movl $0x01, %ecx
+ cmp $0x00, %edx
+ cmovne %ecx, %edx
+ add %edx, %eax
mov %eax, %edx /* back up data_ways in edx */
mov %eax, %ecx
movl $0x01, %eax