Commit fe52acd2 authored by Babu Moger's avatar Babu Moger Committed by Eduardo Habkost
Browse files

i386: Initialize cache information for EPYC family processors 



Initialize pre-determined cache information for EPYC processors.

Signed-off-by: default avatarBabu Moger <babu.moger@amd.com>
Tested-by: default avatarGeoffrey McRae <geoff@hostfission.com>
Message-Id: <20180510204148.11687-5-babu.moger@amd.com>
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent 6aaeb054

target/i386/cpu.c

+52 −0
Original line number Diff line number Diff line
@@ -1109,6 +1109,56 @@ struct X86CPUDefinition { 
    CPUCaches *cache_info;

};



static CPUCaches epyc_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,

    },

    .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,

    },

    .l2_cache = {

        .type = UNIFIED_CACHE,

        .level = 2,

        .size = 512 * KiB,

        .line_size = 64,

        .associativity = 8,

        .partitions = 1,

        .sets = 1024,

        .lines_per_tag = 1,

    },

    .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,

    },

};



static X86CPUDefinition builtin_x86_defs[] = {

    {

        .name = "qemu64",
@@ -2345,6 +2395,7 @@ static X86CPUDefinition builtin_x86_defs[] = { 
            CPUID_6_EAX_ARAT,

        .xlevel = 0x8000000A,

        .model_id = "AMD EPYC Processor",

        .cache_info = &epyc_cache_info,

    },

    {

        .name = "EPYC-IBPB",
@@ -2391,6 +2442,7 @@ static X86CPUDefinition builtin_x86_defs[] = { 
            CPUID_6_EAX_ARAT,

        .xlevel = 0x8000000A,

        .model_id = "AMD EPYC Processor (with IBPB)",

        .cache_info = &epyc_cache_info,

    },

};