diff options
Diffstat (limited to 'src/soc/intel/common/block/cpu/car/cache_as_ram.S')
| -rw-r--r-- | src/soc/intel/common/block/cpu/car/cache_as_ram.S | 25 |
1 files changed, 21 insertions, 4 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 b60e797b2f..aaf6af7d5a 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 @@ -412,8 +412,27 @@ find_llc_subleaf: subl $0x01, %eax set_eviction_mask: - mov %ebx, %ecx /* back up the number of ways */ - mov %eax, %ebx /* back up the non-eviction mask */ + mov %ebx, %ecx /* back up number of ways */ + mov %eax, %ebx /* back up the non-eviction mask*/ +#if CONFIG(CAR_HAS_SF_MASKS) + mov %ecx, %edi /* use number of ways to prepare SF mask */ + /* + * SF mask is programmed with the double number of bits than + * the number of ways + */ + mov $0x01, %eax + shl %cl, %eax + shl %cl, %eax + subl $0x01, %eax /* contains SF mask */ + /* + * Program MSR 0x1891 IA32_CR_SF_QOS_MASK_1 with + * total number of LLC ways + */ + movl $IA32_CR_SF_QOS_MASK_1, %ecx + xorl %edx, %edx + wrmsr + mov %edi, %ecx /* restore number of ways */ +#endif /* * Program MSR 0xC91 IA32_L3_MASK_1 * This MSR contain one bit per each way of LLC @@ -431,7 +450,6 @@ set_eviction_mask: movl $IA32_L3_MASK_1, %ecx xorl %edx, %edx wrmsr - /* * Program MSR 0xC92 IA32_L3_MASK_2 * This MSR contain one bit per each way of LLC @@ -460,7 +478,6 @@ set_eviction_mask: movl $0x02, %eax #endif wrmsr - movl $CONFIG_DCACHE_RAM_BASE, %edi movl $CONFIG_DCACHE_RAM_SIZE, %ecx shr $0x02, %ecx |