Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 534 insertions, 0 deletions

diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
new file mode 100644
index 000000000..de8dbb0b4
--- /dev/null
+++ b/drivers/edac/amd64_edac.h
@@ -0,0 +1,534 @@
+/*
+ * AMD64 class Memory Controller kernel module
+ *
+ * Copyright (c) 2009 SoftwareBitMaker.
+ * Copyright (c) 2009-15 Advanced Micro Devices, Inc.
+ *
+ * This file may be distributed under the terms of the
+ * GNU General Public License.
+ */
+
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/slab.h>
+#include <linux/mmzone.h>
+#include <linux/edac.h>
+#include <asm/cpu_device_id.h>
+#include <asm/msr.h>
+#include "edac_module.h"
+#include "mce_amd.h"
+
+#define amd64_info(fmt, arg...) \
+	edac_printk(KERN_INFO, "amd64", fmt, ##arg)
+
+#define amd64_warn(fmt, arg...) \
+	edac_printk(KERN_WARNING, "amd64", "Warning: " fmt, ##arg)
+
+#define amd64_err(fmt, arg...) \
+	edac_printk(KERN_ERR, "amd64", "Error: " fmt, ##arg)
+
+#define amd64_mc_warn(mci, fmt, arg...) \
+	edac_mc_chipset_printk(mci, KERN_WARNING, "amd64", fmt, ##arg)
+
+#define amd64_mc_err(mci, fmt, arg...) \
+	edac_mc_chipset_printk(mci, KERN_ERR, "amd64", fmt, ##arg)
+
+/*
+ * Throughout the comments in this code, the following terms are used:
+ *
+ *	SysAddr, DramAddr, and InputAddr
+ *
+ *  These terms come directly from the amd64 documentation
+ * (AMD publication #26094).  They are defined as follows:
+ *
+ *     SysAddr:
+ *         This is a physical address generated by a CPU core or a device
+ *         doing DMA.  If generated by a CPU core, a SysAddr is the result of
+ *         a virtual to physical address translation by the CPU core's address
+ *         translation mechanism (MMU).
+ *
+ *     DramAddr:
+ *         A DramAddr is derived from a SysAddr by subtracting an offset that
+ *         depends on which node the SysAddr maps to and whether the SysAddr
+ *         is within a range affected by memory hoisting.  The DRAM Base
+ *         (section 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers
+ *         determine which node a SysAddr maps to.
+ *
+ *         If the DRAM Hole Address Register (DHAR) is enabled and the SysAddr
+ *         is within the range of addresses specified by this register, then
+ *         a value x from the DHAR is subtracted from the SysAddr to produce a
+ *         DramAddr.  Here, x represents the base address for the node that
+ *         the SysAddr maps to plus an offset due to memory hoisting.  See
+ *         section 3.4.8 and the comments in amd64_get_dram_hole_info() and
+ *         sys_addr_to_dram_addr() below for more information.
+ *
+ *         If the SysAddr is not affected by the DHAR then a value y is
+ *         subtracted from the SysAddr to produce a DramAddr.  Here, y is the
+ *         base address for the node that the SysAddr maps to.  See section
+ *         3.4.4 and the comments in sys_addr_to_dram_addr() below for more
+ *         information.
+ *
+ *     InputAddr:
+ *         A DramAddr is translated to an InputAddr before being passed to the
+ *         memory controller for the node that the DramAddr is associated
+ *         with.  The memory controller then maps the InputAddr to a csrow.
+ *         If node interleaving is not in use, then the InputAddr has the same
+ *         value as the DramAddr.  Otherwise, the InputAddr is produced by
+ *         discarding the bits used for node interleaving from the DramAddr.
+ *         See section 3.4.4 for more information.
+ *
+ *         The memory controller for a given node uses its DRAM CS Base and
+ *         DRAM CS Mask registers to map an InputAddr to a csrow.  See
+ *         sections 3.5.4 and 3.5.5 for more information.
+ */
+
+#define EDAC_AMD64_VERSION		"3.5.0"
+#define EDAC_MOD_STR			"amd64_edac"
+
+/* Extended Model from CPUID, for CPU Revision numbers */
+#define K8_REV_D			1
+#define K8_REV_E			2
+#define K8_REV_F			4
+
+/* Hardware limit on ChipSelect rows per MC and processors per system */
+#define NUM_CHIPSELECTS			8
+#define DRAM_RANGES			8
+
+#define ON true
+#define OFF false
+
+/*
+ * PCI-defined configuration space registers
+ */
+#define PCI_DEVICE_ID_AMD_15H_NB_F1	0x1601
+#define PCI_DEVICE_ID_AMD_15H_NB_F2	0x1602
+#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F1 0x141b
+#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F2 0x141c
+#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F1 0x1571
+#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F2 0x1572
+#define PCI_DEVICE_ID_AMD_16H_NB_F1	0x1531
+#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
+#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F0 0x15e8
+#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F6 0x15ee
+#define PCI_DEVICE_ID_AMD_17H_M30H_DF_F0 0x1490
+#define PCI_DEVICE_ID_AMD_17H_M30H_DF_F6 0x1496
+
+/*
+ * Function 1 - Address Map
+ */
+#define DRAM_BASE_LO			0x40
+#define DRAM_LIMIT_LO			0x44
+
+/*
+ * F15 M30h D18F1x2[1C:00]
+ */
+#define DRAM_CONT_BASE			0x200
+#define DRAM_CONT_LIMIT			0x204
+
+/*
+ * F15 M30h D18F1x2[4C:40]
+ */
+#define DRAM_CONT_HIGH_OFF		0x240
+
+#define dram_rw(pvt, i)			((u8)(pvt->ranges[i].base.lo & 0x3))
+#define dram_intlv_sel(pvt, i)		((u8)((pvt->ranges[i].lim.lo >> 8) & 0x7))
+#define dram_dst_node(pvt, i)		((u8)(pvt->ranges[i].lim.lo & 0x7))
+
+#define DHAR				0xf0
+#define dhar_mem_hoist_valid(pvt)	((pvt)->dhar & BIT(1))
+#define dhar_base(pvt)			((pvt)->dhar & 0xff000000)
+#define k8_dhar_offset(pvt)		(((pvt)->dhar & 0x0000ff00) << 16)
+
+					/* NOTE: Extra mask bit vs K8 */
+#define f10_dhar_offset(pvt)		(((pvt)->dhar & 0x0000ff80) << 16)
+
+#define DCT_CFG_SEL			0x10C
+
+#define DRAM_LOCAL_NODE_BASE		0x120
+#define DRAM_LOCAL_NODE_LIM		0x124
+
+#define DRAM_BASE_HI			0x140
+#define DRAM_LIMIT_HI			0x144
+
+
+/*
+ * Function 2 - DRAM controller
+ */
+#define DCSB0				0x40
+#define DCSB1				0x140
+#define DCSB_CS_ENABLE			BIT(0)
+
+#define DCSM0				0x60
+#define DCSM1				0x160
+
+#define csrow_enabled(i, dct, pvt)	((pvt)->csels[(dct)].csbases[(i)] & DCSB_CS_ENABLE)
+
+#define DRAM_CONTROL			0x78
+
+#define DBAM0				0x80
+#define DBAM1				0x180
+
+/* Extract the DIMM 'type' on the i'th DIMM from the DBAM reg value passed */
+#define DBAM_DIMM(i, reg)		((((reg) >> (4*(i)))) & 0xF)
+
+#define DBAM_MAX_VALUE			11
+
+#define DCLR0				0x90
+#define DCLR1				0x190
+#define REVE_WIDTH_128			BIT(16)
+#define WIDTH_128			BIT(11)
+
+#define DCHR0				0x94
+#define DCHR1				0x194
+#define DDR3_MODE			BIT(8)
+
+#define DCT_SEL_LO			0x110
+#define dct_high_range_enabled(pvt)	((pvt)->dct_sel_lo & BIT(0))
+#define dct_interleave_enabled(pvt)	((pvt)->dct_sel_lo & BIT(2))
+
+#define dct_ganging_enabled(pvt)	((boot_cpu_data.x86 == 0x10) && ((pvt)->dct_sel_lo & BIT(4)))
+
+#define dct_data_intlv_enabled(pvt)	((pvt)->dct_sel_lo & BIT(5))
+#define dct_memory_cleared(pvt)		((pvt)->dct_sel_lo & BIT(10))
+
+#define SWAP_INTLV_REG			0x10c
+
+#define DCT_SEL_HI			0x114
+
+#define F15H_M60H_SCRCTRL		0x1C8
+#define F17H_SCR_BASE_ADDR		0x48
+#define F17H_SCR_LIMIT_ADDR		0x4C
+
+/*
+ * Function 3 - Misc Control
+ */
+#define NBCTL				0x40
+
+#define NBCFG				0x44
+#define NBCFG_CHIPKILL			BIT(23)
+#define NBCFG_ECC_ENABLE		BIT(22)
+
+/* F3x48: NBSL */
+#define F10_NBSL_EXT_ERR_ECC		0x8
+#define NBSL_PP_OBS			0x2
+
+#define SCRCTRL				0x58
+
+#define F10_ONLINE_SPARE		0xB0
+#define online_spare_swap_done(pvt, c)	(((pvt)->online_spare >> (1 + 2 * (c))) & 0x1)
+#define online_spare_bad_dramcs(pvt, c)	(((pvt)->online_spare >> (4 + 4 * (c))) & 0x7)
+
+#define F10_NB_ARRAY_ADDR		0xB8
+#define F10_NB_ARRAY_DRAM		BIT(31)
+
+/* Bits [2:1] are used to select 16-byte section within a 64-byte cacheline  */
+#define SET_NB_ARRAY_ADDR(section)	(((section) & 0x3) << 1)
+
+#define F10_NB_ARRAY_DATA		0xBC
+#define F10_NB_ARR_ECC_WR_REQ		BIT(17)
+#define SET_NB_DRAM_INJECTION_WRITE(inj)  \
+					(BIT(((inj.word) & 0xF) + 20) | \
+					F10_NB_ARR_ECC_WR_REQ | inj.bit_map)
+#define SET_NB_DRAM_INJECTION_READ(inj)  \
+					(BIT(((inj.word) & 0xF) + 20) | \
+					BIT(16) |  inj.bit_map)
+
+
+#define NBCAP				0xE8
+#define NBCAP_CHIPKILL			BIT(4)
+#define NBCAP_SECDED			BIT(3)
+#define NBCAP_DCT_DUAL			BIT(0)
+
+#define EXT_NB_MCA_CFG			0x180
+
+/* MSRs */
+#define MSR_MCGCTL_NBE			BIT(4)
+
+/* F17h */
+
+/* F0: */
+#define DF_DHAR				0x104
+
+/* UMC CH register offsets */
+#define UMCCH_BASE_ADDR			0x0
+#define UMCCH_ADDR_MASK			0x20
+#define UMCCH_ADDR_CFG			0x30
+#define UMCCH_DIMM_CFG			0x80
+#define UMCCH_UMC_CFG			0x100
+#define UMCCH_SDP_CTRL			0x104
+#define UMCCH_ECC_CTRL			0x14C
+#define UMCCH_ECC_BAD_SYMBOL		0xD90
+#define UMCCH_UMC_CAP			0xDF0
+#define UMCCH_UMC_CAP_HI		0xDF4
+
+/* UMC CH bitfields */
+#define UMC_ECC_CHIPKILL_CAP		BIT(31)
+#define UMC_ECC_ENABLED			BIT(30)
+
+#define UMC_SDP_INIT			BIT(31)
+
+#define NUM_UMCS			2
+
+enum amd_families {
+	K8_CPUS = 0,
+	F10_CPUS,
+	F15_CPUS,
+	F15_M30H_CPUS,
+	F15_M60H_CPUS,
+	F16_CPUS,
+	F16_M30H_CPUS,
+	F17_CPUS,
+	F17_M10H_CPUS,
+	F17_M30H_CPUS,
+	NUM_FAMILIES,
+};
+
+/* Error injection control structure */
+struct error_injection {
+	u32	 section;
+	u32	 word;
+	u32	 bit_map;
+};
+
+/* low and high part of PCI config space regs */
+struct reg_pair {
+	u32 lo, hi;
+};
+
+/*
+ * See F1x[1, 0][7C:40] DRAM Base/Limit Registers
+ */
+struct dram_range {
+	struct reg_pair base;
+	struct reg_pair lim;
+};
+
+/* A DCT chip selects collection */
+struct chip_select {
+	u32 csbases[NUM_CHIPSELECTS];
+	u8 b_cnt;
+
+	u32 csmasks[NUM_CHIPSELECTS];
+	u8 m_cnt;
+};
+
+struct amd64_umc {
+	u32 dimm_cfg;		/* DIMM Configuration reg */
+	u32 umc_cfg;		/* Configuration reg */
+	u32 sdp_ctrl;		/* SDP Control reg */
+	u32 ecc_ctrl;		/* DRAM ECC Control reg */
+	u32 umc_cap_hi;		/* Capabilities High reg */
+};
+
+struct amd64_pvt {
+	struct low_ops *ops;
+
+	/* pci_device handles which we utilize */
+	struct pci_dev *F0, *F1, *F2, *F3, *F6;
+
+	u16 mc_node_id;		/* MC index of this MC node */
+	u8 fam;			/* CPU family */
+	u8 model;		/* ... model */
+	u8 stepping;		/* ... stepping */
+
+	int ext_model;		/* extended model value of this node */
+	int channel_count;
+
+	/* Raw registers */
+	u32 dclr0;		/* DRAM Configuration Low DCT0 reg */
+	u32 dclr1;		/* DRAM Configuration Low DCT1 reg */
+	u32 dchr0;		/* DRAM Configuration High DCT0 reg */
+	u32 dchr1;		/* DRAM Configuration High DCT1 reg */
+	u32 nbcap;		/* North Bridge Capabilities */
+	u32 nbcfg;		/* F10 North Bridge Configuration */
+	u32 ext_nbcfg;		/* Extended F10 North Bridge Configuration */
+	u32 dhar;		/* DRAM Hoist reg */
+	u32 dbam0;		/* DRAM Base Address Mapping reg for DCT0 */
+	u32 dbam1;		/* DRAM Base Address Mapping reg for DCT1 */
+
+	/* one for each DCT */
+	struct chip_select csels[2];
+
+	/* DRAM base and limit pairs F1x[78,70,68,60,58,50,48,40] */
+	struct dram_range ranges[DRAM_RANGES];
+
+	u64 top_mem;		/* top of memory below 4GB */
+	u64 top_mem2;		/* top of memory above 4GB */
+
+	u32 dct_sel_lo;		/* DRAM Controller Select Low */
+	u32 dct_sel_hi;		/* DRAM Controller Select High */
+	u32 online_spare;	/* On-Line spare Reg */
+
+	/* x4 or x8 syndromes in use */
+	u8 ecc_sym_sz;
+
+	/* place to store error injection parameters prior to issue */
+	struct error_injection injection;
+
+	/* cache the dram_type */
+	enum mem_type dram_type;
+
+	struct amd64_umc *umc;	/* UMC registers */
+};
+
+enum err_codes {
+	DECODE_OK	=  0,
+	ERR_NODE	= -1,
+	ERR_CSROW	= -2,
+	ERR_CHANNEL	= -3,
+	ERR_SYND	= -4,
+	ERR_NORM_ADDR	= -5,
+};
+
+struct err_info {
+	int err_code;
+	struct mem_ctl_info *src_mci;
+	int csrow;
+	int channel;
+	u16 syndrome;
+	u32 page;
+	u32 offset;
+};
+
+static inline u32 get_umc_base(u8 channel)
+{
+	/* ch0: 0x50000, ch1: 0x150000 */
+	return 0x50000 + (!!channel << 20);
+}
+
+static inline u64 get_dram_base(struct amd64_pvt *pvt, u8 i)
+{
+	u64 addr = ((u64)pvt->ranges[i].base.lo & 0xffff0000) << 8;
+
+	if (boot_cpu_data.x86 == 0xf)
+		return addr;
+
+	return (((u64)pvt->ranges[i].base.hi & 0x000000ff) << 40) | addr;
+}
+
+static inline u64 get_dram_limit(struct amd64_pvt *pvt, u8 i)
+{
+	u64 lim = (((u64)pvt->ranges[i].lim.lo & 0xffff0000) << 8) | 0x00ffffff;
+
+	if (boot_cpu_data.x86 == 0xf)
+		return lim;
+
+	return (((u64)pvt->ranges[i].lim.hi & 0x000000ff) << 40) | lim;
+}
+
+static inline u16 extract_syndrome(u64 status)
+{
+	return ((status >> 47) & 0xff) | ((status >> 16) & 0xff00);
+}
+
+static inline u8 dct_sel_interleave_addr(struct amd64_pvt *pvt)
+{
+	if (pvt->fam == 0x15 && pvt->model >= 0x30)
+		return (((pvt->dct_sel_hi >> 9) & 0x1) << 2) |
+			((pvt->dct_sel_lo >> 6) & 0x3);
+
+	return	((pvt)->dct_sel_lo >> 6) & 0x3;
+}
+/*
+ * per-node ECC settings descriptor
+ */
+struct ecc_settings {
+	u32 old_nbctl;
+	bool nbctl_valid;
+
+	struct flags {
+		unsigned long nb_mce_enable:1;
+		unsigned long nb_ecc_prev:1;
+	} flags;
+};
+
+#ifdef CONFIG_EDAC_DEBUG
+extern const struct attribute_group amd64_edac_dbg_group;
+#endif
+
+#ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION
+extern const struct attribute_group amd64_edac_inj_group;
+#endif
+
+/*
+ * Each of the PCI Device IDs types have their own set of hardware accessor
+ * functions and per device encoding/decoding logic.
+ */
+struct low_ops {
+	int (*early_channel_count)	(struct amd64_pvt *pvt);
+	void (*map_sysaddr_to_csrow)	(struct mem_ctl_info *mci, u64 sys_addr,
+					 struct err_info *);
+	int (*dbam_to_cs)		(struct amd64_pvt *pvt, u8 dct,
+					 unsigned cs_mode, int cs_mask_nr);
+};
+
+struct amd64_family_type {
+	const char *ctl_name;
+	u16 f0_id, f1_id, f2_id, f6_id;
+	struct low_ops ops;
+};
+
+int __amd64_read_pci_cfg_dword(struct pci_dev *pdev, int offset,
+			       u32 *val, const char *func);
+int __amd64_write_pci_cfg_dword(struct pci_dev *pdev, int offset,
+				u32 val, const char *func);
+
+#define amd64_read_pci_cfg(pdev, offset, val)	\
+	__amd64_read_pci_cfg_dword(pdev, offset, val, __func__)
+
+#define amd64_write_pci_cfg(pdev, offset, val)	\
+	__amd64_write_pci_cfg_dword(pdev, offset, val, __func__)
+
+int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
+			     u64 *hole_offset, u64 *hole_size);
+
+#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
+
+/* Injection helpers */
+static inline void disable_caches(void *dummy)
+{
+	write_cr0(read_cr0() | X86_CR0_CD);
+	wbinvd();
+}
+
+static inline void enable_caches(void *dummy)
+{
+	write_cr0(read_cr0() & ~X86_CR0_CD);
+}
+
+static inline u8 dram_intlv_en(struct amd64_pvt *pvt, unsigned int i)
+{
+	if (pvt->fam == 0x15 && pvt->model >= 0x30) {
+		u32 tmp;
+		amd64_read_pci_cfg(pvt->F1, DRAM_CONT_LIMIT, &tmp);
+		return (u8) tmp & 0xF;
+	}
+	return (u8) (pvt->ranges[i].base.lo >> 8) & 0x7;
+}
+
+static inline u8 dhar_valid(struct amd64_pvt *pvt)
+{
+	if (pvt->fam == 0x15 && pvt->model >= 0x30) {
+		u32 tmp;
+		amd64_read_pci_cfg(pvt->F1, DRAM_CONT_BASE, &tmp);
+		return (tmp >> 1) & BIT(0);
+	}
+	return (pvt)->dhar & BIT(0);
+}
+
+static inline u32 dct_sel_baseaddr(struct amd64_pvt *pvt)
+{
+	if (pvt->fam == 0x15 && pvt->model >= 0x30) {
+		u32 tmp;
+		amd64_read_pci_cfg(pvt->F1, DRAM_CONT_BASE, &tmp);
+		return (tmp >> 11) & 0x1FFF;
+	}
+	return (pvt)->dct_sel_lo & 0xFFFFF800;
+}