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| author | Muralidhara M K <muralidhara.mk@amd.com> | 2023-01-27 17:04:12 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-03-24 13:03:20 +0100 |
| commit | 32ecdf8688d7b6ae183cce88c9307850ff6918f0 (patch) | |
| tree | 797d50af7bd90d2bd87818a44d01b69f839c3393 /drivers/edac | |
| parent | 78ec161a91dda15ecdfa153196bf0a739f0cb9a9 (diff) | |
| download | lwn-32ecdf8688d7b6ae183cce88c9307850ff6918f0.tar.gz lwn-32ecdf8688d7b6ae183cce88c9307850ff6918f0.zip | |
EDAC/amd64: Split read_mc_regs() into dct/umc functions
Call them from their respective hw_info_get() paths.
ECC symbol size is not needed on UMC systems, so determine_ecc_sym_sz()
is left out of the UMC path. Do not save TOP_MEM* values on modern
controllers because they're not needed there (read: they were used only
for debugging, if anything).
[ Yazen: rebased/reworked patch and reworded commit message. ]
Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com>
Co-developed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Co-developed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230127170419.1824692-16-yazen.ghannam@amd.com
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 375bc0275e8e..df95f3be6580 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -3089,7 +3089,7 @@ static void determine_ecc_sym_sz(struct amd64_pvt *pvt) /* * Retrieve the hardware registers of the memory controller. */ -static void __read_mc_regs_df(struct amd64_pvt *pvt) +static void umc_read_mc_regs(struct amd64_pvt *pvt) { u8 nid = pvt->mc_node_id; struct amd64_umc *umc; @@ -3113,7 +3113,7 @@ static void __read_mc_regs_df(struct amd64_pvt *pvt) * Retrieve the hardware registers of the memory controller (this includes the * 'Address Map' and 'Misc' device regs) */ -static void read_mc_regs(struct amd64_pvt *pvt) +static void dct_read_mc_regs(struct amd64_pvt *pvt) { unsigned int range; u64 msr_val; @@ -3134,12 +3134,6 @@ static void read_mc_regs(struct amd64_pvt *pvt) edac_dbg(0, " TOP_MEM2 disabled\n"); } - if (pvt->umc) { - __read_mc_regs_df(pvt); - - goto skip; - } - amd64_read_pci_cfg(pvt->F3, NBCAP, &pvt->nbcap); read_dram_ctl_register(pvt); @@ -3180,9 +3174,6 @@ static void read_mc_regs(struct amd64_pvt *pvt) amd64_read_dct_pci_cfg(pvt, 1, DCHR0, &pvt->dchr1); } -skip: - - determine_ecc_sym_sz(pvt); } @@ -3658,7 +3649,7 @@ static int dct_hw_info_get(struct amd64_pvt *pvt) dct_prep_chip_selects(pvt); dct_read_base_mask(pvt); - read_mc_regs(pvt); + dct_read_mc_regs(pvt); dct_determine_memory_type(pvt); return 0; @@ -3672,7 +3663,7 @@ static int umc_hw_info_get(struct amd64_pvt *pvt) umc_prep_chip_selects(pvt); umc_read_base_mask(pvt); - read_mc_regs(pvt); + umc_read_mc_regs(pvt); umc_determine_memory_type(pvt); return 0; |