diff options
| author | Borislav Petkov <borislav.petkov@amd.com> | 2010-12-21 17:53:27 +0300 |
|---|---|---|
| committer | Borislav Petkov <borislav.petkov@amd.com> | 2011-03-17 16:46:14 +0300 |
| commit | 525a1b20a6830317db17b62df322b45d92ecd550 (patch) | |
| tree | 02b9f603b4545e11726b40c96f39f30c6eeed199 /drivers/edac | |
| parent | f678b8ccce69dcf9c597e3029ee35421ba62a215 (diff) | |
| download | linux-525a1b20a6830317db17b62df322b45d92ecd550.tar.xz | |
amd64_edac: Cleanup DBAM handling
Do not read DBAM regs twice and simplify code around them.
There should be no functional change resulting from this patch.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index aed7f7bbc5d2..9fd3c2d9c2a7 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -875,12 +875,6 @@ static void dump_misc_regs(struct amd64_pvt *pvt) amd64_dump_dramcfg_low(pvt->dclr1, 1); } -static void amd64_read_dbam_reg(struct amd64_pvt *pvt) -{ - amd64_read_dct_pci_cfg(pvt, DBAM0, &pvt->dbam0); - amd64_read_dct_pci_cfg(pvt, DBAM1, &pvt->dbam1); -} - /* * see BKDG, F2x[1,0][5C:40], F2[1,0][6C:60] */ @@ -1098,9 +1092,7 @@ static int k8_dbam_to_chip_select(struct amd64_pvt *pvt, int cs_mode) */ static int f10_early_channel_count(struct amd64_pvt *pvt) { - int dbams[] = { DBAM0, DBAM1 }; int i, j, channels = 0; - u32 dbam; /* If we are in 128 bit mode, then we are using 2 channels */ if (pvt->dclr0 & F10_WIDTH_128) { @@ -1123,9 +1115,8 @@ static int f10_early_channel_count(struct amd64_pvt *pvt) * is more than just one DIMM present in unganged mode. Need to check * both controllers since DIMMs can be placed in either one. */ - for (i = 0; i < ARRAY_SIZE(dbams); i++) { - if (amd64_read_dct_pci_cfg(pvt, dbams[i], &dbam)) - goto err_reg; + for (i = 0; i < 2; i++) { + u32 dbam = (i ? pvt->dbam1 : pvt->dbam0); for (j = 0; j < 4; j++) { if (DBAM_DIMM(j, dbam) > 0) { @@ -1141,10 +1132,6 @@ static int f10_early_channel_count(struct amd64_pvt *pvt) amd64_info("MCT channel count: %d\n", channels); return channels; - -err_reg: - return -1; - } static int f10_dbam_to_chip_select(struct amd64_pvt *pvt, int cs_mode) @@ -1504,8 +1491,8 @@ static void f10_map_sysaddr_to_csrow(struct mem_ctl_info *mci, static void amd64_debug_display_dimm_sizes(int ctrl, struct amd64_pvt *pvt) { int dimm, size0, size1, factor = 0; - u32 dbam; - u32 *dcsb; + u32 *dcsb = ctrl ? pvt->csels[1].csbases : pvt->csels[0].csbases; + u32 dbam = ctrl ? pvt->dbam1 : pvt->dbam0; if (boot_cpu_data.x86 == 0xf) { if (pvt->dclr0 & F10_WIDTH_128) @@ -1969,7 +1956,7 @@ static void read_mc_regs(struct amd64_pvt *pvt) read_dct_base_mask(pvt); amd64_read_pci_cfg(pvt->F1, DHAR, &pvt->dhar); - amd64_read_dbam_reg(pvt); + amd64_read_dct_pci_cfg(pvt, DBAM0, &pvt->dbam0); amd64_read_pci_cfg(pvt->F3, F10_ONLINE_SPARE, &pvt->online_spare); @@ -1981,8 +1968,10 @@ static void read_mc_regs(struct amd64_pvt *pvt) amd64_read_dct_pci_cfg(pvt, F10_DCHR_1, &pvt->dchr1); } - if (boot_cpu_data.x86 >= 0x10) + if (boot_cpu_data.x86 >= 0x10) { amd64_read_pci_cfg(pvt->F3, EXT_NB_MCA_CFG, &tmp); + amd64_read_dct_pci_cfg(pvt, DBAM1, &pvt->dbam1); + } if (boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model > 7 && |