On Thu, Apr 26, 2018 at 11:26:43AM -0500, Babu Moger wrote:
> Initialize pre-determined cache information for EPYC processors.
>
> Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
> Tested-by: Geoffrey McRae <geoff@xxxxxxxxxxxxxxx>
Assuming that the cache information below was validated by people
from AMD, patch looks good to me.
> ---
> target/i386/cpu.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 96 insertions(+)
>
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index a518a0f..5d88363 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -2302,6 +2302,54 @@ static X86CPUDefinition builtin_x86_defs[] = {
> CPUID_6_EAX_ARAT,
> .xlevel = 0x8000000A,
> .model_id = "AMD EPYC Processor",
> + .cache_info.valid = 1,
> + .cache_info.l1d_cache = {
> + .type = DCACHE,
> + .level = 1,
> + .size = 32 * KiB,
> + .line_size = 64,
> + .associativity = 8,
> + .partitions = 1,
> + .sets = 64,
> + .lines_per_tag = 1,
> + .self_init = 1,
> + .no_invd_sharing = true,
> + },
> + .cache_info.l1i_cache = {
> + .type = ICACHE,
> + .level = 1,
> + .size = 64 * KiB,
> + .line_size = 64,
> + .associativity = 4,
> + .partitions = 1,
> + .sets = 256,
> + .lines_per_tag = 1,
> + .self_init = 1,
> + .no_invd_sharing = true,
> + },
> + .cache_info.l2_cache = {
> + .type = UNIFIED_CACHE,
> + .level = 2,
> + .size = 512 * KiB,
> + .line_size = 64,
> + .associativity = 8,
> + .partitions = 1,
> + .sets = 1024,
> + .lines_per_tag = 1,
> + },
> + .cache_info.l3_cache = {
> + .type = UNIFIED_CACHE,
> + .level = 3,
> + .size = 8 * MiB,
> + .line_size = 64,
> + .associativity = 16,
> + .partitions = 1,
> + .sets = 8192,
> + .lines_per_tag = 1,
> + .self_init = true,
> + .inclusive = true,
> + .complex_indexing = true,
> + },
> },
> {
> .name = "EPYC-IBPB",
> @@ -2348,6 +2396,54 @@ static X86CPUDefinition builtin_x86_defs[] = {
> CPUID_6_EAX_ARAT,
> .xlevel = 0x8000000A,
> .model_id = "AMD EPYC Processor (with IBPB)",
> + .cache_info.valid = 1,
> + .cache_info.l1d_cache = {
> + .type = DCACHE,
> + .level = 1,
> + .size = 32 * KiB,
> + .line_size = 64,
> + .associativity = 8,
> + .partitions = 1,
> + .sets = 64,
> + .lines_per_tag = 1,
> + .self_init = 1,
> + .no_invd_sharing = true,
> + },
> + .cache_info.l1i_cache = {
> + .type = ICACHE,
> + .level = 1,
> + .size = 64 * KiB,
> + .line_size = 64,
> + .associativity = 4,
> + .partitions = 1,
> + .sets = 256,
> + .lines_per_tag = 1,
> + .self_init = 1,
> + .no_invd_sharing = true,
> + },
> + .cache_info.l2_cache = {
> + .type = UNIFIED_CACHE,
> + .level = 2,
> + .size = 512 * KiB,
> + .line_size = 64,
> + .associativity = 8,
> + .partitions = 1,
> + .sets = 1024,
> + .lines_per_tag = 1,
> + },
> + .cache_info.l3_cache = {
> + .type = UNIFIED_CACHE,
> + .level = 3,
> + .size = 8 * MiB,
> + .line_size = 64,
> + .associativity = 16,
> + .partitions = 1,
> + .sets = 8192,
> + .lines_per_tag = 1,
> + .self_init = true,
> + .inclusive = true,
> + .complex_indexing = true,
> + },
> },
> };
>
> --
> 2.7.4
>
>
--
Eduardo
