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authorYinghai Lu <yhlu.kernel@gmail.com>2008-09-27 00:30:07 -0700
committerIngo Molnar <mingo@elte.hu>2008-09-27 18:09:33 +0200
commit7fc2368d1d0dce7a778beb2fba3acac8fa7a34b6 (patch)
tree142fa4095d39f7167a824bd01e043ebef97fb016 /arch
parent6ef190cc92e33565accff6a320f0e7d90480bfe7 (diff)
downloadop-kernel-dev-7fc2368d1d0dce7a778beb2fba3acac8fa7a34b6.zip
op-kernel-dev-7fc2368d1d0dce7a778beb2fba3acac8fa7a34b6.tar.gz
x86: don't need to go to chunksize to 4G
change back chunksize max to 2g otherwise will get strange layout in 2G ram system like 0 - 4g WB, 2040M - 2048M UC, 2048M - 4G NC instead of 0 - 2g WB, 2040M - 2048M UC Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/cpu/mtrr/main.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index b117d7f..cc13557 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -1155,10 +1155,10 @@ struct mtrr_cleanup_result {
/*
* gran_size: 1M, 2M, ..., 2G
- * chunk size: gran_size, ..., 4G
- * so we need (2+13)*6
+ * chunk size: gran_size, ..., 2G
+ * so we need (1+12)*6
*/
-#define NUM_RESULT 90
+#define NUM_RESULT 78
#define PSHIFT (PAGE_SHIFT - 10)
static struct mtrr_cleanup_result __initdata result[NUM_RESULT];
@@ -1276,7 +1276,7 @@ static int __init mtrr_cleanup(unsigned address_bits)
memset(min_loss_pfn, 0xff, sizeof(min_loss_pfn));
memset(result, 0, sizeof(result));
for (gran_size = (1ULL<<20); gran_size < (1ULL<<32); gran_size <<= 1) {
- for (chunk_size = gran_size; chunk_size < (1ULL<<33);
+ for (chunk_size = gran_size; chunk_size < (1ULL<<32);
chunk_size <<= 1) {
int num_reg;
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