Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 29f49a3..cf00ff0 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -44,6 +44,7 @@
 extern int machine_check_e200(struct pt_regs *regs);
 extern int machine_check_47x(struct pt_regs *regs);
 int machine_check_8xx(struct pt_regs *regs);
+int machine_check_83xx(struct pt_regs *regs);
 
 extern void cpu_down_flush_e500v2(void);
 extern void cpu_down_flush_e500mc(void);
@@ -144,12 +145,10 @@
 
 /* Definitions for features that only exist on 32-bit chips */
 #ifdef CONFIG_PPC32
-#define CPU_FTR_601			ASM_CONST(0x00001000)
 #define CPU_FTR_L2CR			ASM_CONST(0x00002000)
 #define CPU_FTR_SPEC7450		ASM_CONST(0x00004000)
 #define CPU_FTR_TAU			ASM_CONST(0x00008000)
 #define CPU_FTR_CAN_DOZE		ASM_CONST(0x00010000)
-#define CPU_FTR_USE_RTC			ASM_CONST(0x00020000)
 #define CPU_FTR_L3CR			ASM_CONST(0x00040000)
 #define CPU_FTR_L3_DISABLE_NAP		ASM_CONST(0x00080000)
 #define CPU_FTR_NAP_DISABLE_L2_PR	ASM_CONST(0x00100000)
@@ -159,14 +158,12 @@
 #define CPU_FTR_NEED_COHERENT		ASM_CONST(0x01000000)
 #define CPU_FTR_NO_BTIC			ASM_CONST(0x02000000)
 #define CPU_FTR_PPC_LE			ASM_CONST(0x04000000)
-#define CPU_FTR_UNIFIED_ID_CACHE	ASM_CONST(0x08000000)
 #define CPU_FTR_SPE			ASM_CONST(0x10000000)
 #define CPU_FTR_NEED_PAIRED_STWCX	ASM_CONST(0x20000000)
 #define CPU_FTR_INDEXED_DCR		ASM_CONST(0x40000000)
 
 #else	/* CONFIG_PPC32 */
 /* Define these to 0 for the sake of tests in common code */
-#define CPU_FTR_601			(0)
 #define CPU_FTR_PPC_LE			(0)
 #endif
 
@@ -212,8 +209,9 @@
 #define CPU_FTR_POWER9_DD2_1		LONG_ASM_CONST(0x0000080000000000)
 #define CPU_FTR_P9_TM_HV_ASSIST		LONG_ASM_CONST(0x0000100000000000)
 #define CPU_FTR_P9_TM_XER_SO_BUG	LONG_ASM_CONST(0x0000200000000000)
-#define CPU_FTR_P9_TLBIE_BUG		LONG_ASM_CONST(0x0000400000000000)
+#define CPU_FTR_P9_TLBIE_STQ_BUG	LONG_ASM_CONST(0x0000400000000000)
 #define CPU_FTR_P9_TIDR			LONG_ASM_CONST(0x0000800000000000)
+#define CPU_FTR_P9_TLBIE_ERAT_BUG	LONG_ASM_CONST(0x0001000000000000)
 
 #ifndef __ASSEMBLY__
 
@@ -293,10 +291,10 @@
 #define CPU_FTR_MAYBE_CAN_NAP	0
 #endif
 
-#define CPU_FTRS_PPC601	(CPU_FTR_COMMON | CPU_FTR_601 | \
-	CPU_FTR_COHERENT_ICACHE | CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_USE_RTC)
+#define CPU_FTRS_PPC601	(CPU_FTR_COMMON | \
+	CPU_FTR_COHERENT_ICACHE)
 #define CPU_FTRS_603	(CPU_FTR_COMMON | CPU_FTR_MAYBE_CAN_DOZE | \
-	    CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_PPC_LE)
+	    CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_PPC_LE | CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_604	(CPU_FTR_COMMON | CPU_FTR_PPC_LE)
 #define CPU_FTRS_740_NOTAU	(CPU_FTR_COMMON | \
 	    CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_L2CR | \
@@ -367,15 +365,15 @@
 	    CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
 	    CPU_FTR_SPEC7450 | CPU_FTR_NAP_DISABLE_L2_PR | \
 	    CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
-#define CPU_FTRS_82XX	(CPU_FTR_COMMON | CPU_FTR_MAYBE_CAN_DOZE)
+#define CPU_FTRS_82XX	(CPU_FTR_COMMON | CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_G2_LE	(CPU_FTR_COMMON | CPU_FTR_MAYBE_CAN_DOZE | \
 	    CPU_FTR_MAYBE_CAN_NAP)
 #define CPU_FTRS_E300	(CPU_FTR_MAYBE_CAN_DOZE | \
 	    CPU_FTR_MAYBE_CAN_NAP | \
-	    CPU_FTR_COMMON)
+	    CPU_FTR_COMMON  | CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_E300C2	(CPU_FTR_MAYBE_CAN_DOZE | \
 	    CPU_FTR_MAYBE_CAN_NAP | \
-	    CPU_FTR_COMMON | CPU_FTR_FPU_UNAVAILABLE)
+	    CPU_FTR_COMMON | CPU_FTR_FPU_UNAVAILABLE  | CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_CLASSIC32	(CPU_FTR_COMMON)
 #define CPU_FTRS_8XX	(CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_40X	(CPU_FTR_NODSISRALIGN | CPU_FTR_NOEXECUTE)
@@ -385,7 +383,7 @@
 #define CPU_FTRS_47X	(CPU_FTRS_440x6)
 #define CPU_FTRS_E200	(CPU_FTR_SPE_COMP | \
 	    CPU_FTR_NODSISRALIGN | CPU_FTR_COHERENT_ICACHE | \
-	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE | \
+	    CPU_FTR_NOEXECUTE | \
 	    CPU_FTR_DEBUG_LVL_EXC)
 #define CPU_FTRS_E500	(CPU_FTR_MAYBE_CAN_DOZE | \
 	    CPU_FTR_SPE_COMP | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_NODSISRALIGN | \
@@ -460,7 +458,7 @@
 	    CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
 	    CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
 	    CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \
-	    CPU_FTR_P9_TLBIE_BUG | CPU_FTR_P9_TIDR)
+	    CPU_FTR_P9_TLBIE_STQ_BUG | CPU_FTR_P9_TLBIE_ERAT_BUG | CPU_FTR_P9_TIDR)
 #define CPU_FTRS_POWER9_DD2_0 CPU_FTRS_POWER9
 #define CPU_FTRS_POWER9_DD2_1 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1)
 #define CPU_FTRS_POWER9_DD2_2 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1 | \
@@ -497,7 +495,9 @@
 #else
 enum {
 	CPU_FTRS_POSSIBLE =
-#ifdef CONFIG_PPC_BOOK3S_32
+#ifdef CONFIG_PPC_BOOK3S_601
+	    CPU_FTRS_PPC601 |
+#elif defined(CONFIG_PPC_BOOK3S_32)
 	    CPU_FTRS_PPC601 | CPU_FTRS_603 | CPU_FTRS_604 | CPU_FTRS_740_NOTAU |
 	    CPU_FTRS_740 | CPU_FTRS_750 | CPU_FTRS_750FX1 |
 	    CPU_FTRS_750FX2 | CPU_FTRS_750FX | CPU_FTRS_750GX |
@@ -573,8 +573,10 @@
 #else
 enum {
 	CPU_FTRS_ALWAYS =
-#ifdef CONFIG_PPC_BOOK3S_32
-	    CPU_FTRS_PPC601 & CPU_FTRS_603 & CPU_FTRS_604 & CPU_FTRS_740_NOTAU &
+#ifdef CONFIG_PPC_BOOK3S_601
+	    CPU_FTRS_PPC601 &
+#elif defined(CONFIG_PPC_BOOK3S_32)
+	    CPU_FTRS_603 & CPU_FTRS_604 & CPU_FTRS_740_NOTAU &
 	    CPU_FTRS_740 & CPU_FTRS_750 & CPU_FTRS_750FX1 &
 	    CPU_FTRS_750FX2 & CPU_FTRS_750FX & CPU_FTRS_750GX &
 	    CPU_FTRS_7400_NOTAU & CPU_FTRS_7400 & CPU_FTRS_7450_20 &