From 2ca49b2fcf5813571663c3c4c894b78148c43690 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Mon, 4 Jan 2010 09:47:35 -0500 Subject: [PATCH] x86: Macroise x86 cache descriptors Use a macro to define the cache sizes when cachesize > 1 MB. This is less typing, and less prone to introducing bugs like we saw in e02e0e1a130b9ca37c5186d38ad4b3aaf58bb149, and means we don't have to do maths when adding new non-power-of-2 updates like those seen recently. Signed-off-by: Dave Jones LKML-Reference: <20100104144735.GA18390@redhat.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_cacheinfo.c | 84 ++++++++++++++------------- 1 file changed, 43 insertions(+), 41 deletions(-) diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index fc6c8ef92dcc..c2b722d5a722 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -31,6 +31,8 @@ struct _cache_table { short size; }; +#define MB(x) ((x) * 1024) + /* All the cache descriptor types we care about (no TLB or trace cache entries) */ @@ -44,9 +46,9 @@ static const struct _cache_table __cpuinitconst cache_table[] = { 0x0d, LVL_1_DATA, 16 }, /* 4-way set assoc, 64 byte line size */ { 0x21, LVL_2, 256 }, /* 8-way set assoc, 64 byte line size */ { 0x22, LVL_3, 512 }, /* 4-way set assoc, sectored cache, 64 byte line size */ - { 0x23, LVL_3, 1024 }, /* 8-way set assoc, sectored cache, 64 byte line size */ - { 0x25, LVL_3, 2048 }, /* 8-way set assoc, sectored cache, 64 byte line size */ - { 0x29, LVL_3, 4096 }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x23, LVL_3, MB(1) }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x25, LVL_3, MB(2) }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x29, LVL_3, MB(4) }, /* 8-way set assoc, sectored cache, 64 byte line size */ { 0x2c, LVL_1_DATA, 32 }, /* 8-way set assoc, 64 byte line size */ { 0x30, LVL_1_INST, 32 }, /* 8-way set assoc, 64 byte line size */ { 0x39, LVL_2, 128 }, /* 4-way set assoc, sectored cache, 64 byte line size */ @@ -59,16 +61,16 @@ static const struct _cache_table __cpuinitconst cache_table[] = { 0x41, LVL_2, 128 }, /* 4-way set assoc, 32 byte line size */ { 0x42, LVL_2, 256 }, /* 4-way set assoc, 32 byte line size */ { 0x43, LVL_2, 512 }, /* 4-way set assoc, 32 byte line size */ - { 0x44, LVL_2, 1024 }, /* 4-way set assoc, 32 byte line size */ - { 0x45, LVL_2, 2048 }, /* 4-way set assoc, 32 byte line size */ - { 0x46, LVL_3, 4096 }, /* 4-way set assoc, 64 byte line size */ - { 0x47, LVL_3, 8192 }, /* 8-way set assoc, 64 byte line size */ - { 0x49, LVL_3, 4096 }, /* 16-way set assoc, 64 byte line size */ - { 0x4a, LVL_3, 6144 }, /* 12-way set assoc, 64 byte line size */ - { 0x4b, LVL_3, 8192 }, /* 16-way set assoc, 64 byte line size */ - { 0x4c, LVL_3, 12288 }, /* 12-way set assoc, 64 byte line size */ - { 0x4d, LVL_3, 16384 }, /* 16-way set assoc, 64 byte line size */ - { 0x4e, LVL_2, 6144 }, /* 24-way set assoc, 64 byte line size */ + { 0x44, LVL_2, MB(1) }, /* 4-way set assoc, 32 byte line size */ + { 0x45, LVL_2, MB(2) }, /* 4-way set assoc, 32 byte line size */ + { 0x46, LVL_3, MB(4) }, /* 4-way set assoc, 64 byte line size */ + { 0x47, LVL_3, MB(8) }, /* 8-way set assoc, 64 byte line size */ + { 0x49, LVL_3, MB(4) }, /* 16-way set assoc, 64 byte line size */ + { 0x4a, LVL_3, MB(6) }, /* 12-way set assoc, 64 byte line size */ + { 0x4b, LVL_3, MB(8) }, /* 16-way set assoc, 64 byte line size */ + { 0x4c, LVL_3, MB(12) }, /* 12-way set assoc, 64 byte line size */ + { 0x4d, LVL_3, MB(16) }, /* 16-way set assoc, 64 byte line size */ + { 0x4e, LVL_2, MB(6) }, /* 24-way set assoc, 64 byte line size */ { 0x60, LVL_1_DATA, 16 }, /* 8-way set assoc, sectored cache, 64 byte line size */ { 0x66, LVL_1_DATA, 8 }, /* 4-way set assoc, sectored cache, 64 byte line size */ { 0x67, LVL_1_DATA, 16 }, /* 4-way set assoc, sectored cache, 64 byte line size */ @@ -77,34 +79,34 @@ static const struct _cache_table __cpuinitconst cache_table[] = { 0x71, LVL_TRACE, 16 }, /* 8-way set assoc */ { 0x72, LVL_TRACE, 32 }, /* 8-way set assoc */ { 0x73, LVL_TRACE, 64 }, /* 8-way set assoc */ - { 0x78, LVL_2, 1024 }, /* 4-way set assoc, 64 byte line size */ - { 0x79, LVL_2, 128 }, /* 8-way set assoc, sectored cache, 64 byte line size */ - { 0x7a, LVL_2, 256 }, /* 8-way set assoc, sectored cache, 64 byte line size */ - { 0x7b, LVL_2, 512 }, /* 8-way set assoc, sectored cache, 64 byte line size */ - { 0x7c, LVL_2, 1024 }, /* 8-way set assoc, sectored cache, 64 byte line size */ - { 0x7d, LVL_2, 2048 }, /* 8-way set assoc, 64 byte line size */ - { 0x7f, LVL_2, 512 }, /* 2-way set assoc, 64 byte line size */ - { 0x82, LVL_2, 256 }, /* 8-way set assoc, 32 byte line size */ - { 0x83, LVL_2, 512 }, /* 8-way set assoc, 32 byte line size */ - { 0x84, LVL_2, 1024 }, /* 8-way set assoc, 32 byte line size */ - { 0x85, LVL_2, 2048 }, /* 8-way set assoc, 32 byte line size */ - { 0x86, LVL_2, 512 }, /* 4-way set assoc, 64 byte line size */ - { 0x87, LVL_2, 1024 }, /* 8-way set assoc, 64 byte line size */ - { 0xd0, LVL_3, 512 }, /* 4-way set assoc, 64 byte line size */ - { 0xd1, LVL_3, 1024 }, /* 4-way set assoc, 64 byte line size */ - { 0xd2, LVL_3, 2048 }, /* 4-way set assoc, 64 byte line size */ - { 0xd6, LVL_3, 1024 }, /* 8-way set assoc, 64 byte line size */ - { 0xd7, LVL_3, 2048 }, /* 8-way set assoc, 64 byte line size */ - { 0xd8, LVL_3, 4096 }, /* 12-way set assoc, 64 byte line size */ - { 0xdc, LVL_3, 2048 }, /* 12-way set assoc, 64 byte line size */ - { 0xdd, LVL_3, 4096 }, /* 12-way set assoc, 64 byte line size */ - { 0xde, LVL_3, 8192 }, /* 12-way set assoc, 64 byte line size */ - { 0xe2, LVL_3, 2048 }, /* 16-way set assoc, 64 byte line size */ - { 0xe3, LVL_3, 4096 }, /* 16-way set assoc, 64 byte line size */ - { 0xe4, LVL_3, 8192 }, /* 16-way set assoc, 64 byte line size */ - { 0xea, LVL_3, 12288 }, /* 24-way set assoc, 64 byte line size */ - { 0xeb, LVL_3, 18432 }, /* 24-way set assoc, 64 byte line size */ - { 0xec, LVL_3, 24576 }, /* 24-way set assoc, 64 byte line size */ + { 0x78, LVL_2, MB(1) }, /* 4-way set assoc, 64 byte line size */ + { 0x79, LVL_2, 128 }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x7a, LVL_2, 256 }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x7b, LVL_2, 512 }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x7c, LVL_2, MB(1) }, /* 8-way set assoc, sectored cache, 64 byte line size */ + { 0x7d, LVL_2, MB(2) }, /* 8-way set assoc, 64 byte line size */ + { 0x7f, LVL_2, 512 }, /* 2-way set assoc, 64 byte line size */ + { 0x82, LVL_2, 256 }, /* 8-way set assoc, 32 byte line size */ + { 0x83, LVL_2, 512 }, /* 8-way set assoc, 32 byte line size */ + { 0x84, LVL_2, MB(1) }, /* 8-way set assoc, 32 byte line size */ + { 0x85, LVL_2, MB(2) }, /* 8-way set assoc, 32 byte line size */ + { 0x86, LVL_2, 512 }, /* 4-way set assoc, 64 byte line size */ + { 0x87, LVL_2, MB(1) }, /* 8-way set assoc, 64 byte line size */ + { 0xd0, LVL_3, 512 }, /* 4-way set assoc, 64 byte line size */ + { 0xd1, LVL_3, MB(1) }, /* 4-way set assoc, 64 byte line size */ + { 0xd2, LVL_3, MB(2) }, /* 4-way set assoc, 64 byte line size */ + { 0xd6, LVL_3, MB(1) }, /* 8-way set assoc, 64 byte line size */ + { 0xd7, LVL_3, MB(2) }, /* 8-way set assoc, 64 byte line size */ + { 0xd8, LVL_3, MB(4) }, /* 12-way set assoc, 64 byte line size */ + { 0xdc, LVL_3, MB(2) }, /* 12-way set assoc, 64 byte line size */ + { 0xdd, LVL_3, MB(4) }, /* 12-way set assoc, 64 byte line size */ + { 0xde, LVL_3, MB(8) }, /* 12-way set assoc, 64 byte line size */ + { 0xe2, LVL_3, MB(2) }, /* 16-way set assoc, 64 byte line size */ + { 0xe3, LVL_3, MB(4) }, /* 16-way set assoc, 64 byte line size */ + { 0xe4, LVL_3, MB(8) }, /* 16-way set assoc, 64 byte line size */ + { 0xea, LVL_3, MB(12) }, /* 24-way set assoc, 64 byte line size */ + { 0xeb, LVL_3, MB(18) }, /* 24-way set assoc, 64 byte line size */ + { 0xec, LVL_3, MB(24) }, /* 24-way set assoc, 64 byte line size */ { 0x00, 0, 0} }; -- 2.34.1