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- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- "Moger, Babu"
- Jon Masters
Patch in this message | | | From | "Moger, Babu" <> | Subject | [PATCH v2 03/11] arch/x86: Re-arrange RDT init code | Date | Fri, 5 Oct 2018 20:55:45 +0000 |
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Separate the call sequence for rdt_quirks and MBA feature. This is in preparation to handle vendor differences in these call sequences.
Signed-off-by: Babu Moger <babu.moger@amd.com> --- arch/x86/kernel/cpu/rdt.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kernel/cpu/rdt.c b/arch/x86/kernel/cpu/rdt.c index b361c63170d7..c3ac7f9a3a0f 100644 --- a/arch/x86/kernel/cpu/rdt.c +++ b/arch/x86/kernel/cpu/rdt.c @@ -789,6 +789,16 @@ static bool __init rdt_cpu_has(int flag) return ret; } +static __init bool rdt_mba_config(void) +{ + if (rdt_cpu_has(X86_FEATURE_MBA)) { + if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA])) + return true; + } + + return false; +} + static __init bool get_rdt_alloc_resources(void) { bool ret = false; @@ -813,10 +823,9 @@ static __init bool get_rdt_alloc_resources(void) ret = true; } - if (rdt_cpu_has(X86_FEATURE_MBA)) { - if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA])) - ret = true; - } + if (rdt_mba_config()) + ret = true; + return ret; } @@ -835,7 +844,7 @@ static __init bool get_rdt_mon_resources(void) return !rdt_get_mon_l3_config(&rdt_resources_all[RDT_RESOURCE_L3]); } -static __init void rdt_quirks(void) +static __init void rdt_quirks_intel(void) { switch (boot_cpu_data.x86_model) { case INTEL_FAM6_HASWELL_X: @@ -850,9 +859,14 @@ static __init void rdt_quirks(void) } } +static __init void rdt_quirks(void) +{ + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) + rdt_quirks_intel(); +} + static __init bool get_rdt_resources(void) { - rdt_quirks(); rdt_alloc_capable = get_rdt_alloc_resources(); rdt_mon_capable = get_rdt_mon_resources(); @@ -866,6 +880,9 @@ static int __init rdt_late_init(void) struct rdt_resource *r; int state, ret; + /* Run quirks first */ + rdt_quirks(); + if (!get_rdt_resources()) return -ENODEV; -- 2.17.1
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