diff options
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/i10nm_base.c | 39 | ||||
| -rw-r--r-- | drivers/edac/skx_common.h | 3 |
2 files changed, 42 insertions, 0 deletions
diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c index 238a4ad1e526..91431d8922a0 100644 --- a/drivers/edac/i10nm_base.c +++ b/drivers/edac/i10nm_base.c @@ -24,6 +24,8 @@ pci_read_config_dword((d)->uracu, 0xd0, &(reg)) #define I10NM_GET_IMC_BAR(d, i, reg) \ pci_read_config_dword((d)->uracu, 0xd8 + (i) * 4, &(reg)) +#define I10NM_GET_SAD(d, offset, i, reg)\ + pci_read_config_dword((d)->sad_all, (offset) + (i) * 8, &(reg)) #define I10NM_GET_DIMMMTR(m, i, j) \ readl((m)->mbase + 0x2080c + (i) * (m)->chan_mmio_sz + (j) * 4) #define I10NM_GET_MCDDRTCFG(m, i, j) \ @@ -38,6 +40,10 @@ #define I10NM_GET_IMC_MMIO_SIZE(reg) ((GET_BITFIELD(reg, 13, 23) - \ GET_BITFIELD(reg, 0, 10) + 1) << 12) +#define I10NM_MAX_SAD 16 +#define I10NM_SAD_ENABLE(reg) GET_BITFIELD(reg, 0, 0) +#define I10NM_SAD_NM_CACHEABLE(reg) GET_BITFIELD(reg, 5, 5) + static struct list_head *i10nm_edac_list; static struct pci_dev *pci_get_dev_wrapper(int dom, unsigned int bus, @@ -63,6 +69,31 @@ static struct pci_dev *pci_get_dev_wrapper(int dom, unsigned int bus, return pdev; } +static bool i10nm_check_2lm(struct res_config *cfg) +{ + struct skx_dev *d; + u32 reg; + int i; + + list_for_each_entry(d, i10nm_edac_list, list) { + d->sad_all = pci_get_dev_wrapper(d->seg, d->bus[1], + PCI_SLOT(cfg->sad_all_devfn), + PCI_FUNC(cfg->sad_all_devfn)); + if (!d->sad_all) + continue; + + for (i = 0; i < I10NM_MAX_SAD; i++) { + I10NM_GET_SAD(d, cfg->sad_all_offset, i, reg); + if (I10NM_SAD_ENABLE(reg) && I10NM_SAD_NM_CACHEABLE(reg)) { + edac_dbg(2, "2-level memory configuration.\n"); + return true; + } + } + } + + return false; +} + static int i10nm_get_all_munits(void) { struct pci_dev *mdev; @@ -132,6 +163,8 @@ static struct res_config i10nm_cfg0 = { .decs_did = 0x3452, .busno_cfg_offset = 0xcc, .ddr_chan_mmio_sz = 0x4000, + .sad_all_devfn = PCI_DEVFN(29, 0), + .sad_all_offset = 0x108, }; static struct res_config i10nm_cfg1 = { @@ -139,6 +172,8 @@ static struct res_config i10nm_cfg1 = { .decs_did = 0x3452, .busno_cfg_offset = 0xd0, .ddr_chan_mmio_sz = 0x4000, + .sad_all_devfn = PCI_DEVFN(29, 0), + .sad_all_offset = 0x108, }; static struct res_config spr_cfg = { @@ -147,6 +182,8 @@ static struct res_config spr_cfg = { .busno_cfg_offset = 0xd0, .ddr_chan_mmio_sz = 0x8000, .support_ddr5 = true, + .sad_all_devfn = PCI_DEVFN(10, 0), + .sad_all_offset = 0x300, }; static const struct x86_cpu_id i10nm_cpuids[] = { @@ -296,6 +333,8 @@ static int __init i10nm_init(void) return -ENODEV; } + skx_set_mem_cfg(i10nm_check_2lm(cfg)); + rc = i10nm_get_all_munits(); if (rc < 0) goto fail; diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h index 8b5a49058ce4..34e89f7ddf93 100644 --- a/drivers/edac/skx_common.h +++ b/drivers/edac/skx_common.h @@ -133,6 +133,9 @@ struct res_config { /* Per DDR channel memory-mapped I/O size */ int ddr_chan_mmio_sz; bool support_ddr5; + /* SAD device number and function number */ + unsigned int sad_all_devfn; + int sad_all_offset; }; typedef int (*get_dimm_config_f)(struct mem_ctl_info *mci, |