src: Move shared amd64 and IA32 MSRs to <cpu/x86/msr.h>

Change-Id: Ic9022a98878a2fcc85868a64aa9c2ca3eb2e2c4e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/29177
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 171 insertions, 0 deletions

diff --git a/src/include/cpu/x86/msr.h b/src/include/cpu/x86/msr.h
index 032ce4ecb6..5238b3ef7c 100644
--- a/src/include/cpu/x86/msr.h
+++ b/src/include/cpu/x86/msr.h
@@ -3,7 +3,10 @@
 
 /* Intel SDM: Table 2-1
  * IA-32 architectural MSR: Extended Feature Enable Register
+ *
+ * AMD64 Programmers Manual vol2 Revision 3.30 and/or the device's BKDG
  */
+
 #define IA32_EFER	0xC0000080
 #define  EFER_NXE	(1 << 11)
 #define  EFER_LMA	(1 << 10)
@@ -40,6 +43,27 @@
 #define IA32_PAT			0x277
 #define IA32_MC0_CTL			0x400
 #define IA32_MC0_STATUS			0x401
+#define  MCA_STATUS_HI_VAL		(1UL << (63 - 32))
+#define  MCA_STATUS_HI_OVERFLOW		(1UL << (62 - 32))
+#define  MCA_STATUS_HI_UC		(1UL << (61 - 32))
+#define  MCA_STATUS_HI_EN		(1UL << (60 - 32))
+#define  MCA_STATUS_HI_MISCV		(1UL << (59 - 32))
+#define  MCA_STATUS_HI_ADDRV		(1UL << (58 - 32))
+#define  MCA_STATUS_HI_PCC		(1UL << (57 - 32))
+#define  MCA_STATUS_HI_COREID_VAL	(1UL << (56 - 32))
+#define  MCA_STATUS_HI_CECC		(1UL << (46 - 32))
+#define  MCA_STATUS_HI_UECC		(1UL << (45 - 32))
+#define  MCA_STATUS_HI_DEFERRED		(1UL << (44 - 32))
+#define  MCA_STATUS_HI_POISON		(1UL << (43 - 32))
+#define  MCA_STATUS_HI_SUBLINK		(1UL << (41 - 32))
+#define  MCA_STATUS_HI_ERRCOREID_MASK	(0xf << 0)
+#define  MCA_STATUS_LO_ERRCODE_EXT_SH	16
+#define  MCA_STATUS_LO_ERRCODE_EXT_MASK	(0x3f << MCA_STATUS_LO_ERRCODE_EXT_SH)
+#define  MCA_STATUS_LO_ERRCODE_MASK	(0xffff << 0)
+#define MC0_ADDR			0x402
+#define MC0_MISC			0x403
+#define MC0_CTL_MASK			0xC0010044
+
 #define IA32_PM_ENABLE			0x770
 #define IA32_HWP_CAPABILITIES		0x771
 #define IA32_HWP_REQUEST		0x774
@@ -51,6 +75,7 @@
 #define IA32_L3_MASK_2			0xc92
 
 #ifndef __ASSEMBLER__
+#include <types.h>
 #if defined(__ROMCC__)
 
 typedef __builtin_msr_t msr_t;
@@ -125,5 +150,151 @@ static __always_inline void wrmsr(unsigned int index, msr_t msr)
 
 #endif /* CONFIG_SOC_SETS_MSRS */
 #endif /* __ROMCC__ */
+
+/* Helpers for interpreting MC[i]_STATUS */
+
+static inline int mca_valid(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_VAL);
+}
+
+static inline int mca_over(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_OVERFLOW);
+}
+
+static inline int mca_uc(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_UC);
+}
+
+static inline int mca_en(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_EN);
+}
+
+static inline int mca_miscv(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_MISCV);
+}
+
+static inline int mca_addrv(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_ADDRV);
+}
+
+static inline int mca_pcc(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_PCC);
+}
+
+static inline int mca_idv(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_COREID_VAL);
+}
+
+static inline int mca_cecc(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_CECC);
+}
+
+static inline int mca_uecc(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_UECC);
+}
+
+static inline int mca_defd(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_DEFERRED);
+}
+
+static inline int mca_poison(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_POISON);
+}
+
+static inline int mca_sublink(msr_t msr)
+{
+	return !!(msr.hi & MCA_STATUS_HI_SUBLINK);
+}
+
+static inline uint16_t mca_err_code(msr_t reg)
+{
+	return reg.lo & MCA_STATUS_LO_ERRCODE_MASK;
+}
+
+static inline uint16_t mca_err_extcode(msr_t reg)
+{
+	return reg.lo & MCA_STATUS_LO_ERRCODE_EXT_MASK;
+}
+
+/* Machine Check errors may be categorized by type, as determined by the
+ * Error Code field of MC[i]_STATUS.  The definitions below can typically
+ * be found by searching the BKDG for a table called "Error Code Types".
+ */
+/* TLB Errors 0000 0000 0001 TTLL */
+#define MCA_ERRCODE_TLB_DETECT		0xfff0
+#define MCA_ERRCODE_TLB_TT_SH		2 /* Transaction Type */
+#define MCA_ERRCODE_TLB_TT_MASK		(0x3 << MCA_ERRCODE_TLB_TT_SH)
+#define MCA_ERRCODE_TLB_LL_SH		0 /* Cache Level */
+#define MCA_ERRCODE_TLB_LL_MASK		(0x3 << MCA_ERRCODE_TLB_LL_SH)
+
+/* Memory Errors 0000 0001 RRRR TTLL */
+#define MCA_ERRCODE_MEM_DETECT		0xff00
+#define MCA_ERRCODE_MEM_RRRR_SH		4 /* Memory Transaction Type */
+#define MCA_ERRCODE_MEM_RRRR_MASK	(0xf << MCA_ERRCODE_MEM_RRRR_MASK)
+#define MCA_ERRCODE_MEM_TT_SH		2 /* Transaction Type */
+#define MCA_ERRCODE_MEM_TT_MASK		(0x3 << MCA_ERRCODE_MEM_TT_SH)
+#define MCA_ERRCODE_MEM_LL_SH		0 /* Cache Level */
+#define MCA_ERRCODE_MEM_LL_MASK		(0x3 << MCA_ERRCODE_MEM_LL_SH)
+
+/* Bus Errors 0000 1PPT RRRR IILL */
+#define MCA_ERRCODE_BUS_DETECT		0xf800
+#define MCA_ERRCODE_BUS_PP_SH		9 /* Participation Processor */
+#define MCA_ERRCODE_BUS_PP_MASK		(0x3 << MCA_ERRCODE_BUS_PP_SH)
+#define MCA_ERRCODE_BUS_T_SH		8 /* Timeout */
+#define MCA_ERRCODE_BUS_T_MASK		(0x1 << MCA_ERRCODE_BUS_T_SH)
+#define MCA_ERRCODE_BUS_RRRR_SH		4 /* Memory Transaction Type */
+#define MCA_ERRCODE_BUS_RRRR_MASK	(0xf << MCA_ERRCODE_BUS_RRRR_SH)
+#define MCA_ERRCODE_BUS_II_SH		2 /* Memory or IO */
+#define MCA_ERRCODE_BUS_II_MASK		(0x3 << MCA_ERRCODE_BUS_II_SH)
+#define MCA_ERRCODE_BUS_LL_SH		0 /* Cache Level */
+#define MCA_ERRCODE_BUS_LL_MASK		(0x3 << MCA_ERRCODE_BUS_LL_SH)
+
+/* Int. Unclassified Errors 0000 01UU 0000 0000 */
+#define MCA_ERRCODE_INT_DETECT		0xfc00
+#define MCA_ERRCODE_INT_UU_SH		8 /* Internal Error Type */
+#define MCA_ERRCODE_INT_UU_MASK		(0x3 << MCA_ERRCODE_INT_UU_SH)
+
+#define MCA_BANK_LS 0 /* Load-store, including DC */
+#define MCA_BANK_IF 1 /* Instruction Fetch, including IC */
+#define MCA_BANK_CU 2 /* Combined Unit, including L2 */
+/* bank 3 reserved */
+#define MCA_BANK_NB 4 /* Northbridge, including IO link */
+#define MCA_BANK_EX 5 /* Execution Unit */
+#define MCA_BANK_FP 6 /* Floating Point */
+
+enum mca_err_code_types {
+	MCA_ERRTYPE_UNKNOWN,
+	MCA_ERRTYPE_TLB,
+	MCA_ERRTYPE_MEM,
+	MCA_ERRTYPE_BUS,
+	MCA_ERRTYPE_INT
+};
+
+static inline enum mca_err_code_types mca_err_type(msr_t reg)
+{
+	uint16_t error = mca_err_code(reg);
+	if (error & MCA_ERRCODE_BUS_DETECT) /* this order must be maintained */
+		return MCA_ERRTYPE_BUS;
+	if (error & MCA_ERRCODE_INT_DETECT)
+		return MCA_ERRTYPE_INT;
+	if (error & MCA_ERRCODE_MEM_DETECT)
+		return MCA_ERRTYPE_MEM;
+	if (error & MCA_ERRCODE_TLB_DETECT)
+		return MCA_ERRTYPE_TLB;
+	return MCA_ERRTYPE_UNKNOWN;
+}
+
 #endif /* __ASSEMBLER__ */
 #endif /* CPU_X86_MSR_H */