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| author |   Borislav Petkov <borislav.petkov@amd.com> | 2009-09-22 16:48:37 +0200 |
|---|---|---|
| committer | Borislav Petkov <borislav.petkov@amd.com> | 2009-10-07 16:51:15 +0200 |
| commit | 66216a7a15e75d517dddd0ac6514924b15071e4c (patch) | |
| tree | 69247ab8326bbe69f4b6e875e2add0f884d386cc | |
| parent | amd64_edac: fix chip select handling (diff) | |
| download | linux-dev-66216a7a15e75d517dddd0ac6514924b15071e4c.tar.xz linux-dev-66216a7a15e75d517dddd0ac6514924b15071e4c.zip | |
amd64_edac: fix DRAM base and limit extraction
On Fam10h and above, F1x[1, 0][7C:40] are DRAM Base/Limit registers
which specify the destination node of a DRAM address. Those address
boundaries are being extracted into ->dram_base[] and ->dram_limit[].
Correct the extraction masks to match the respective address bits.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| -rw-r--r-- | drivers/edac/amd64_edac.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 85c308b1fed7..4f4ac82382f7 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -1368,8 +1368,8 @@ static void f10_read_dram_base_limit(struct amd64_pvt *pvt, int dram) pvt->dram_IntlvEn[dram] = (low_base >> 8) & 0x7; - pvt->dram_base[dram] = (((((u64) high_base & 0x000000FF) << 32) | - ((u64) low_base & 0xFFFF0000))) << 8; + pvt->dram_base[dram] = (((u64)high_base & 0x000000FF) << 40) | + (((u64)low_base & 0xFFFF0000) << 24); low_offset = K8_DRAM_LIMIT_LOW + (dram << 3); high_offset = F10_DRAM_LIMIT_HIGH + (dram << 3); @@ -1390,9 +1390,9 @@ static void f10_read_dram_base_limit(struct amd64_pvt *pvt, int dram) * Extract address values and form a LIMIT address. Limit is the HIGHEST * memory location of the region, so low 24 bits need to be all ones. */ - low_limit |= 0x0000FFFF; - pvt->dram_limit[dram] = - ((((u64) high_limit << 32) + (u64) low_limit) << 8) | (0xFF); + pvt->dram_limit[dram] = (((u64)high_limit & 0x000000FF) << 40) | + (((u64) low_limit & 0xFFFF0000) << 24) | + 0x00FFFFFF; } static void f10_read_dram_ctl_register(struct amd64_pvt *pvt) |