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authorYazen Ghannam <Yazen.Ghannam@amd.com>2016-11-17 17:57:35 -0500
committerBorislav Petkov <bp@suse.de>2016-11-24 21:24:09 +0100
commitf1cbbec9fce958d3d71ed815a01c815b35533f1f (patch)
treeb275c3b7e4d95099d6f77dbea2a01b7072769b6f /drivers/edac
parent196b79fcc8ed4e3c565a746b06125596bee06b62 (diff)
downloadlinux-f1cbbec9fce958d3d71ed815a01c815b35533f1f.tar.bz2
EDAC, amd64: Add AMD Fam17h family type and ops
Add a family type and associated ops for Fam17h. Define a struct to hold all the UMC registers that we need. Make this a part of struct amd64_pvt in order to maximize code reuse in the rest of the driver. Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com> Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com> Cc: linux-edac <linux-edac@vger.kernel.org> Cc: x86-ml <x86@kernel.org> Link: http://lkml.kernel.org/r/1479423463-8536-10-git-send-email-Yazen.Ghannam@amd.com Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/amd64_edac.c44
-rw-r--r--drivers/edac/amd64_edac.h11
2 files changed, 54 insertions, 1 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 870f56713c22..bb70392bb115 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1210,6 +1210,19 @@ static int f1x_early_channel_count(struct amd64_pvt *pvt)
return channels;
}
+static int f17_early_channel_count(struct amd64_pvt *pvt)
+{
+ int i, channels = 0;
+
+ /* SDP Control bit 31 (SdpInit) is clear for unused UMC channels */
+ for (i = 0; i < NUM_UMCS; i++)
+ channels += !!(pvt->umc[i].sdp_ctrl & UMC_SDP_INIT);
+
+ amd64_info("MCT channel count: %d\n", channels);
+
+ return channels;
+}
+
static int ddr3_cs_size(unsigned i, bool dct_width)
{
unsigned shift = 0;
@@ -1337,6 +1350,23 @@ static int f16_dbam_to_chip_select(struct amd64_pvt *pvt, u8 dct,
return ddr3_cs_size(cs_mode, false);
}
+static int f17_base_addr_to_cs_size(struct amd64_pvt *pvt, u8 umc,
+ unsigned int cs_mode, int csrow_nr)
+{
+ u32 base_addr = pvt->csels[umc].csbases[csrow_nr];
+
+ /* Each mask is used for every two base addresses. */
+ u32 addr_mask = pvt->csels[umc].csmasks[csrow_nr >> 1];
+
+ /* Register [31:1] = Address [39:9]. Size is in kBs here. */
+ u32 size = ((addr_mask >> 1) - (base_addr >> 1) + 1) >> 1;
+
+ edac_dbg(1, "BaseAddr: 0x%x, AddrMask: 0x%x\n", base_addr, addr_mask);
+
+ /* Return size in MBs. */
+ return size >> 10;
+}
+
static void read_dram_ctl_register(struct amd64_pvt *pvt)
{
@@ -1989,6 +2019,15 @@ static struct amd64_family_type family_types[] = {
.dbam_to_cs = f16_dbam_to_chip_select,
}
},
+ [F17_CPUS] = {
+ .ctl_name = "F17h",
+ .f0_id = PCI_DEVICE_ID_AMD_17H_DF_F0,
+ .f6_id = PCI_DEVICE_ID_AMD_17H_DF_F6,
+ .ops = {
+ .early_channel_count = f17_early_channel_count,
+ .dbam_to_cs = f17_base_addr_to_cs_size,
+ }
+ },
};
/*
@@ -2790,6 +2829,11 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
pvt->ops = &family_types[F16_CPUS].ops;
break;
+ case 0x17:
+ fam_type = &family_types[F17_CPUS];
+ pvt->ops = &family_types[F17_CPUS].ops;
+ break;
+
default:
amd64_err("Unsupported family!\n");
return NULL;
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 96c1f5d6d130..ada39f165a9b 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -118,6 +118,8 @@
#define PCI_DEVICE_ID_AMD_16H_NB_F2 0x1532
#define PCI_DEVICE_ID_AMD_16H_M30H_NB_F1 0x1581
#define PCI_DEVICE_ID_AMD_16H_M30H_NB_F2 0x1582
+#define PCI_DEVICE_ID_AMD_17H_DF_F0 0x1460
+#define PCI_DEVICE_ID_AMD_17H_DF_F6 0x1466
/*
* Function 1 - Address Map
@@ -266,6 +268,7 @@ enum amd_families {
F15_M60H_CPUS,
F16_CPUS,
F16_M30H_CPUS,
+ F17_CPUS,
NUM_FAMILIES,
};
@@ -298,6 +301,10 @@ struct chip_select {
u8 m_cnt;
};
+struct amd64_umc {
+ u32 sdp_ctrl; /* SDP Control reg */
+};
+
struct amd64_pvt {
struct low_ops *ops;
@@ -345,6 +352,8 @@ struct amd64_pvt {
/* cache the dram_type */
enum mem_type dram_type;
+
+ struct amd64_umc *umc; /* UMC registers */
};
enum err_codes {
@@ -438,7 +447,7 @@ struct low_ops {
struct amd64_family_type {
const char *ctl_name;
- u16 f1_id, f2_id;
+ u16 f0_id, f1_id, f2_id, f6_id;
struct low_ops ops;
};