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Subject[PATCH] EDAC, ie31200: Add Intel Coffee Lake CPU support
From
Coffee Lake seems to work like Skylake and Kaby Lake. This patch adds all
device IDs for Coffee Lake-S CPUs according to datasheet.

Cc: Jason Baron <jbaron@akamai.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
---

Tested with a Xeon E-2124G.
---
drivers/edac/ie31200_edac.c | 95 +++++++++++++++++++++++++------------
1 file changed, 64 insertions(+), 31 deletions(-)

diff --git a/drivers/edac/ie31200_edac.c b/drivers/edac/ie31200_edac.c
index adf60eb45bd4..e9ee3ff608b2 100644
--- a/drivers/edac/ie31200_edac.c
+++ b/drivers/edac/ie31200_edac.c
@@ -20,11 +20,13 @@
* 0c08: Xeon E3-1200 v3 Processor DRAM Controller
* 1918: Xeon E3-1200 v5 Skylake Host Bridge/DRAM Registers
* 5918: Xeon E3-1200 Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
+ * 3e..: 8th/9th Gen Core Processor Host Bridge/DRAM Registers
*
* Based on Intel specification:
* http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xeon-e3-1200v3-vol-2-datasheet.pdf
* http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200-family-vol-2-datasheet.html
* http://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-h-processor-lines-datasheet-vol-2.html
+ * https://www.intel.com/content/www/us/en/products/docs/processors/core/8th-gen-core-family-datasheet-vol-2.html
*
* According to the above datasheet (p.16):
* "
@@ -61,6 +63,26 @@
#define PCI_DEVICE_ID_INTEL_IE31200_HB_8 0x1918
#define PCI_DEVICE_ID_INTEL_IE31200_HB_9 0x5918

+/* Coffee Lake-S */
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK 0x3e00
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_1 0x3e0f
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_2 0x3e18
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_3 0x3e1f
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_4 0x3e30
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_5 0x3e31
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_6 0x3e32
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_7 0x3e33
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_8 0x3ec2
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_9 0x3ec6
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_10 0x3eca
+
+/* Helper macro to test if HB is for Skylake or later. */
+#define DEVICE_ID_SKYLAKE_OR_LATER(did) \
+ (((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_8) || \
+ ((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_9) || \
+ (((did)&PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK) == \
+ PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK))
+
#define IE31200_DIMMS 4
#define IE31200_RANKS 8
#define IE31200_RANKS_PER_CHANNEL 4
@@ -381,10 +403,10 @@ static int ie31200_probe1(struct pci_dev *pdev, int dev_idx)
u32 addr_decode, mad_offset;

/*
- * Kaby Lake seems to work like Skylake. Please re-visit this logic
- * when adding new CPU support.
+ * Kaby Lake, Coffee Lake seem to work like Skylake. Please re-visit
+ * this logic when adding new CPU support.
*/
- bool skl = (pdev->device >= PCI_DEVICE_ID_INTEL_IE31200_HB_8);
+ bool skl = DEVICE_ID_SKYLAKE_OR_LATER(pdev->device);

edac_dbg(0, "MC:\n");

@@ -542,36 +564,47 @@ static void ie31200_remove_one(struct pci_dev *pdev)
}

static const struct pci_device_id ie31200_pci_tbl[] = {
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
- {
- PCI_VEND_DEV(INTEL, IE31200_HB_9), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- IE31200},
+ { PCI_VEND_DEV(INTEL, IE31200_HB_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_9), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_9), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
+ { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_10), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ IE31200 },
{
0,
- } /* 0 terminated list. */
+ } /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, ie31200_pci_tbl);

--
2.22.0.rc2.383.gf4fbbf30c2-goog
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