From: Pu Wen <puwen@hygon.cn>
To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, thomas.lendacky@amd.com, bp@alien8.de,
pbonzini@redhat.com, mchehab@kernel.org, mikhail.jin@gmail.com
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-edac@vger.kernel.org, Pu Wen <puwen@hygon.cn>
Subject: [PATCH v4 15/16] driver/edac: enable Hygon support to AMD64 EDAC driver
Date: Mon, 20 Aug 2018 00:14:58 +0800 [thread overview]
Message-ID: <6275a5a0a0cfbd2c1abc09a5bb41caabecd02e27.1534599097.git.puwen@hygon.cn> (raw)
In-Reply-To: <cover.1534599097.git.puwen@hygon.cn>
To make AMD64 EDAC and MCE drivers working on Hygon platforms, add
vendor checking for Hygon by using the code path of AMD 0x17. Add a
vendor field to struct amd64_pvt and initialize it in per_family_init
for vendor checking.
Also Hygon PCI Device ID DF_F0/DF_F6(0x1460/0x1466) of Host bridges
is needed for edac driver.
Signed-off-by: Pu Wen <puwen@hygon.cn>
---
drivers/edac/amd64_edac.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++-
drivers/edac/amd64_edac.h | 5 +++++
drivers/edac/mce_amd.c | 15 +++++++++++++-
3 files changed, 70 insertions(+), 2 deletions(-)
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 18aeabb..3cefb25 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -211,7 +211,8 @@ static int __set_scrub_rate(struct amd64_pvt *pvt, u32 new_bw, u32 min_rate)
scrubval = scrubrates[i].scrubval;
- if (pvt->fam == 0x17) {
+ if (pvt->fam == 0x17 ||
+ (pvt->vendor == X86_VENDOR_HYGON && pvt->fam == 0x18)) {
__f17h_set_scrubval(pvt, scrubval);
} else if (pvt->fam == 0x15 && pvt->model == 0x60) {
f15h_select_dct(pvt, 0);
@@ -274,6 +275,21 @@ static int get_scrub_rate(struct mem_ctl_info *mci)
}
break;
+ case 0x18:
+ if (pvt->vendor == X86_VENDOR_HYGON) {
+ amd64_read_pci_cfg(pvt->F6, F17H_SCR_BASE_ADDR, &scrubval);
+ if (scrubval & BIT(0)) {
+ amd64_read_pci_cfg(pvt->F6, F17H_SCR_LIMIT_ADDR, &scrubval);
+ scrubval &= 0xF;
+ scrubval += 0x5;
+ } else {
+ scrubval = 0;
+ }
+ break;
+ }
+
+ /* fall through */
+
default:
amd64_read_pci_cfg(pvt->F3, SCRCTRL, &scrubval);
break;
@@ -1052,6 +1068,19 @@ static void determine_memory_type(struct amd64_pvt *pvt)
pvt->dram_type = MEM_DDR4;
return;
+ case 0x18:
+ if (pvt->vendor == X86_VENDOR_HYGON) {
+ if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(5))
+ pvt->dram_type = MEM_LRDDR4;
+ else if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(4))
+ pvt->dram_type = MEM_RDDR4;
+ else
+ pvt->dram_type = MEM_DDR4;
+ return;
+ }
+
+ /* fall through */
+
default:
WARN(1, KERN_ERR "%s: Family??? 0x%x\n", __func__, pvt->fam);
pvt->dram_type = MEM_EMPTY;
@@ -2200,6 +2229,16 @@ static struct amd64_family_type family_types[] = {
.dbam_to_cs = f17_base_addr_to_cs_size,
}
},
+ [HYGON_F18_CPUS] = {
+ /* Hygon F18h uses the same AMD F17h support */
+ .ctl_name = "Hygon_F18h",
+ .f0_id = PCI_DEVICE_ID_HYGON_18H_DF_F0,
+ .f6_id = PCI_DEVICE_ID_HYGON_18H_DF_F6,
+ .ops = {
+ .early_channel_count = f17_early_channel_count,
+ .dbam_to_cs = f17_base_addr_to_cs_size,
+ }
+ },
};
/*
@@ -3149,6 +3188,7 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
pvt->ext_model = boot_cpu_data.x86_model >> 4;
pvt->stepping = boot_cpu_data.x86_stepping;
pvt->model = boot_cpu_data.x86_model;
+ pvt->vendor = boot_cpu_data.x86_vendor;
pvt->fam = boot_cpu_data.x86;
switch (pvt->fam) {
@@ -3192,6 +3232,15 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
pvt->ops = &family_types[F17_CPUS].ops;
break;
+ case 0x18:
+ if (pvt->vendor == X86_VENDOR_HYGON) {
+ fam_type = &family_types[HYGON_F18_CPUS];
+ pvt->ops = &family_types[HYGON_F18_CPUS].ops;
+ break;
+ }
+
+ /* fall through */
+
default:
amd64_err("Unsupported family!\n");
return NULL;
@@ -3428,6 +3477,7 @@ static const struct x86_cpu_id amd64_cpuids[] = {
{ X86_VENDOR_AMD, 0x15, X86_MODEL_ANY, X86_FEATURE_ANY, 0 },
{ X86_VENDOR_AMD, 0x16, X86_MODEL_ANY, X86_FEATURE_ANY, 0 },
{ X86_VENDOR_AMD, 0x17, X86_MODEL_ANY, X86_FEATURE_ANY, 0 },
+ { X86_VENDOR_HYGON, 0x18, X86_MODEL_ANY, X86_FEATURE_ANY, 0 },
{ }
};
MODULE_DEVICE_TABLE(x86cpu, amd64_cpuids);
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 1d4b74e..5176b51 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -116,6 +116,9 @@
#define PCI_DEVICE_ID_AMD_17H_DF_F0 0x1460
#define PCI_DEVICE_ID_AMD_17H_DF_F6 0x1466
+#define PCI_DEVICE_ID_HYGON_18H_DF_F0 0x1460
+#define PCI_DEVICE_ID_HYGON_18H_DF_F6 0x1466
+
/*
* Function 1 - Address Map
*/
@@ -281,6 +284,7 @@ enum amd_families {
F16_CPUS,
F16_M30H_CPUS,
F17_CPUS,
+ HYGON_F18_CPUS,
NUM_FAMILIES,
};
@@ -328,6 +332,7 @@ struct amd64_pvt {
struct pci_dev *F0, *F1, *F2, *F3, *F6;
u16 mc_node_id; /* MC index of this MC node */
+ u8 vendor; /* CPU vendor */
u8 fam; /* CPU family */
u8 model; /* ... model */
u8 stepping; /* ... stepping */
diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index 2ab4d61..886e2bb 100644
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -1059,7 +1059,8 @@ static int __init mce_amd_init(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
- if (c->x86_vendor != X86_VENDOR_AMD)
+ if (c->x86_vendor != X86_VENDOR_AMD &&
+ c->x86_vendor != X86_VENDOR_HYGON)
return -ENODEV;
fam_ops = kzalloc(sizeof(struct amd_decoder_ops), GFP_KERNEL);
@@ -1120,6 +1121,18 @@ static int __init mce_amd_init(void)
}
break;
+ case 0x18:
+ if (c->x86_vendor == X86_VENDOR_HYGON) {
+ xec_mask = 0x3f;
+ if (!boot_cpu_has(X86_FEATURE_SMCA)) {
+ pr_warn("Decoding supported only on Scalable MCA processors.\n");
+ goto err_out;
+ }
+ break;
+ }
+
+ /* fall through */
+
default:
printk(KERN_WARNING "Huh? What family is it: 0x%x?!\n", c->x86);
goto err_out;
--
2.7.4
next prev parent reply other threads:[~2018-08-19 16:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-19 16:07 [PATCH v4 00/16] Add support for Hygon Dhyana Family 18h processor Pu Wen
2018-08-19 16:08 ` [PATCH v4 01/16] x86/cpu: create Dhyana init file and register new cpu_dev to system Pu Wen
2018-08-19 16:09 ` [PATCH v4 02/16] x86/cache: get cache size/leaves and setup cache cpumap for Dhyana Pu Wen
2018-08-19 16:09 ` [PATCH v4 03/16] x86/mtrr: get MTRR number and support TOP_MEM2 Pu Wen
2018-08-19 16:09 ` [PATCH v4 04/16] x86/smpboot: smp init nodelay and no flush caches before sleep Pu Wen
2018-08-19 16:10 ` [PATCH v4 05/16] x86/pmu: enable Hygon support to PMU infrastructure Pu Wen
2018-08-19 16:10 ` [PATCH v4 06/16] x86/nops: init ideal_nops for Hygon Pu Wen
2018-08-19 16:10 ` [PATCH v4 07/16] x86/pci: add Hygon PCI vendor and northbridge support Pu Wen
2018-08-19 16:11 ` [PATCH v4 08/16] x86/apic: add modern APIC support for Hygon Pu Wen
2018-08-19 16:12 ` [PATCH v4 09/16] x86/bugs: add lfence mitigation to spectre v2 and no meltdown " Pu Wen
2018-08-19 16:12 ` [PATCH v4 10/16] x86/mce: enable Hygon support to MCE infrastructure Pu Wen
2018-08-19 16:13 ` [PATCH v4 11/16] x86/kvm: enable Hygon support to KVM infrastructure Pu Wen
2018-08-19 16:13 ` [PATCH v4 12/16] x86/xen: enable Hygon support to Xen Pu Wen
2018-08-21 1:43 ` [Xen-devel] " Boris Ostrovsky
2018-08-19 16:14 ` [PATCH v4 13/16] driver/acpi: enable Hygon support to ACPI driver Pu Wen
2018-08-19 16:14 ` [PATCH v4 14/16] driver/cpufreq: enable Hygon support to cpufreq driver Pu Wen
2018-08-19 16:14 ` Pu Wen [this message]
2018-08-21 8:13 ` [PATCH v4 15/16] driver/edac: enable Hygon support to AMD64 EDAC driver Borislav Petkov
2018-08-21 11:04 ` Pu Wen
2018-08-21 11:20 ` Borislav Petkov
2018-08-21 11:26 ` Paolo Bonzini
2018-08-21 13:04 ` Borislav Petkov
2018-08-21 18:07 ` Pavel Machek
2018-08-22 13:18 ` Pu Wen
2018-08-22 13:07 ` Pu Wen
2018-08-23 8:27 ` Borislav Petkov
2018-08-19 16:15 ` [PATCH v4 16/16] tools/cpupower: enable Hygon support to cpupower tool Pu Wen
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