Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "A fair number of build fixes for various configurations.

  Fixes to BPF, and the BCM47xx platform code, a preemption fix for the
  Loongson core, a syscall auditing fix, wire up the new getrandom and
  memfd_create.  Several patches for EVA"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (30 commits)
  MIPS: SmartMIPS: Disable assembler warnings
  MIPS: Move CPU topology macros to topology.h
  MIPS: Wire up new syscalls getrandom and memfd_create.
  MIPS: Fix a warning for virt_to_page
  arch/mips/net/bpf_jit.c: fix failure check
  MIPS: COP2: CPP macro safety fixes.
  MIPS: Kconfig: Select SMP symbols for CMP
  MIPS: ZBOOT: add missing <linux/string.h> include
  MIPS: IP28: Fix/clean spaces.h
  MIPS: IP28: Select correct L1_CACHE_SHIFT
  MIPS: BCM63xx: delete double assignment
  MIPS: Spelling s/confugrations/configurations/
  MIPS: OCTEON: make get_system_type() thread-safe
  MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores
  MIPS: Malta: EVA: Rename 'eva_entry' to 'platform_eva_init'
  MIPS: EVA: Add new EVA header
  MIPS: scall64-o32: Fix indirect syscall detection
  MIPS: syscall: Fix AUDIT value for O32 processes on MIPS64
  MIPS: Loongson: Fix COP2 usage for preemptible kernel
  MIPS: NL: Fix nlm_xlp_defconfig build error
  ...

arch/mips/Kconfig

@@ -546,6 +546,7 @@ config SGI_IP28
 	# select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
+	select MIPS_L1_CACHE_SHIFT_7
       help
         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
         kernel that runs on these, say Y here.
@@ -2029,7 +2030,9 @@ config MIPS_CMP
 	bool "MIPS CMP framework support (DEPRECATED)"
 	depends on SYS_SUPPORTS_MIPS_CMP
 	select MIPS_GIC_IPI
+	select SMP
 	select SYNC_R4K
+	select SYS_SUPPORTS_SMP
 	select WEAK_ORDERING
 	default n
 	help

arch/mips/Makefile

@@ -113,7 +113,16 @@ predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
 cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
 
-cflags-$(CONFIG_CPU_HAS_SMARTMIPS)	+= $(call cc-option,-msmartmips)
+# For smartmips configurations, there are hundreds of warnings due to ISA overrides
+# in assembly and header files. smartmips is only supported for MIPS32r1 onwards
+# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
+# similar directives in the kernel will spam the build logs with the following warnings:
+# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
+# or
+# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
+# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
+# been fixed properly.
+cflags-$(CONFIG_CPU_HAS_SMARTMIPS)	+= $(call cc-option,-msmartmips) -Wa,--no-warn
 cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips)
 
 cflags-$(CONFIG_SB1XXX_CORELIS)	+= $(call cc-option,-mno-sched-prolog) \

arch/mips/bcm63xx/irq.c

@@ -434,7 +434,7 @@ static void bcm63xx_init_irq(void)
 		irq_stat_addr[0] += PERF_IRQSTAT_3368_REG;
 		irq_mask_addr[0] += PERF_IRQMASK_3368_REG;
 		irq_stat_addr[1] = 0;
-		irq_stat_addr[1] = 0;
+		irq_mask_addr[1] = 0;
 		irq_bits = 32;
 		ext_irq_count = 4;
 		ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_3368;
@@ -443,7 +443,7 @@ static void bcm63xx_init_irq(void)
 		irq_stat_addr[0] += PERF_IRQSTAT_6328_REG(0);
 		irq_mask_addr[0] += PERF_IRQMASK_6328_REG(0);
 		irq_stat_addr[1] += PERF_IRQSTAT_6328_REG(1);
-		irq_stat_addr[1] += PERF_IRQMASK_6328_REG(1);
+		irq_mask_addr[1] += PERF_IRQMASK_6328_REG(1);
 		irq_bits = 64;
 		ext_irq_count = 4;
 		is_ext_irq_cascaded = 1;

arch/mips/boot/compressed/decompress.c

@@ -13,6 +13,7 @@
 
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/string.h>
 
 #include <asm/addrspace.h>
 

arch/mips/include/asm/cop2.h

@@ -16,8 +16,8 @@
 extern void octeon_cop2_save(struct octeon_cop2_state *);
 extern void octeon_cop2_restore(struct octeon_cop2_state *);
 
-#define cop2_save(r)		octeon_cop2_save(r)
-#define cop2_restore(r)		octeon_cop2_restore(r)
+#define cop2_save(r)		octeon_cop2_save(&(r)->thread.cp2)
+#define cop2_restore(r)		octeon_cop2_restore(&(r)->thread.cp2)
 
 #define cop2_present		1
 #define cop2_lazy_restore	1
@@ -26,26 +26,26 @@ extern void octeon_cop2_restore(struct octeon_cop2_state *);
 
 extern void nlm_cop2_save(struct nlm_cop2_state *);
 extern void nlm_cop2_restore(struct nlm_cop2_state *);
-#define cop2_save(r)		nlm_cop2_save(r)
-#define cop2_restore(r)		nlm_cop2_restore(r)
+
+#define cop2_save(r)		nlm_cop2_save(&(r)->thread.cp2)
+#define cop2_restore(r)		nlm_cop2_restore(&(r)->thread.cp2)
 
 #define cop2_present		1
 #define cop2_lazy_restore	0
 
 #elif defined(CONFIG_CPU_LOONGSON3)
 
-#define cop2_save(r)
-#define cop2_restore(r)
-
 #define cop2_present		1
 #define cop2_lazy_restore	1
+#define cop2_save(r)		do { (r); } while (0)
+#define cop2_restore(r)		do { (r); } while (0)
 
 #else
 
 #define cop2_present		0
 #define cop2_lazy_restore	0
-#define cop2_save(r)
-#define cop2_restore(r)
+#define cop2_save(r)		do { (r); } while (0)
+#define cop2_restore(r)		do { (r); } while (0)
 #endif
 
 enum cu2_ops {

arch/mips/include/asm/mach-ip28/spaces.h

@@ -11,15 +11,8 @@
 #ifndef _ASM_MACH_IP28_SPACES_H
 #define _ASM_MACH_IP28_SPACES_H
 
-#define CAC_BASE	_AC(0xa800000000000000, UL)
-
-#define HIGHMEM_START	(~0UL)
-
 #define PHYS_OFFSET	_AC(0x20000000, UL)
 
-#define UNCAC_BASE	_AC(0xc0000000, UL)     /* 0xa0000000 + PHYS_OFFSET */
-#define IO_BASE		UNCAC_BASE
-
 #include <asm/mach-generic/spaces.h>
 
 #endif /* _ASM_MACH_IP28_SPACES_H */

arch/mips/include/asm/page.h

@@ -37,7 +37,7 @@
 
 /*
  * This is used for calculating the real page sizes
- * for FTLB or VTLB + FTLB confugrations.
+ * for FTLB or VTLB + FTLB configurations.
  */
 static inline unsigned int page_size_ftlb(unsigned int mmuextdef)
 {
@@ -223,7 +223,8 @@ static inline int pfn_valid(unsigned long pfn)
 
 #endif
 
-#define virt_to_page(kaddr)	pfn_to_page(PFN_DOWN(virt_to_phys(kaddr)))
+#define virt_to_page(kaddr)	pfn_to_page(PFN_DOWN(virt_to_phys((void *)     \
+								  (kaddr))))
 
 extern int __virt_addr_valid(const volatile void *kaddr);
 #define virt_addr_valid(kaddr)						\

arch/mips/include/asm/smp.h

@@ -37,11 +37,6 @@ extern int __cpu_logical_map[NR_CPUS];
 
 #define NO_PROC_ID	(-1)
 
-#define topology_physical_package_id(cpu)	(cpu_data[cpu].package)
-#define topology_core_id(cpu)			(cpu_data[cpu].core)
-#define topology_core_cpumask(cpu)		(&cpu_core_map[cpu])
-#define topology_thread_cpumask(cpu)		(&cpu_sibling_map[cpu])
-
 #define SMP_RESCHEDULE_YOURSELF 0x1	/* XXX braindead */
 #define SMP_CALL_FUNCTION	0x2
 /* Octeon - Tell another core to flush its icache */

arch/mips/include/asm/switch_to.h

@@ -92,7 +92,7 @@ do {									\
 			KSTK_STATUS(prev) &= ~ST0_CU2;			\
 		__c0_stat = read_c0_status();				\
 		write_c0_status(__c0_stat | ST0_CU2);			\
-		cop2_save(&prev->thread.cp2);				\
+		cop2_save(prev);					\
 		write_c0_status(__c0_stat & ~ST0_CU2);			\
 	}								\
 	__clear_software_ll_bit();					\
@@ -111,7 +111,7 @@ do {									\
 			(KSTK_STATUS(current) & ST0_CU2)) {		\
 		__c0_stat = read_c0_status();				\
 		write_c0_status(__c0_stat | ST0_CU2);			\
-		cop2_restore(&current->thread.cp2);			\
+		cop2_restore(current);					\
 		write_c0_status(__c0_stat & ~ST0_CU2);			\
 	}								\
 	if (cpu_has_dsp)						\

arch/mips/include/asm/topology.h

@@ -9,5 +9,13 @@
 #define __ASM_TOPOLOGY_H
 
 #include <topology.h>
+#include <linux/smp.h>
+
+#ifdef CONFIG_SMP
+#define topology_physical_package_id(cpu)	(cpu_data[cpu].package)
+#define topology_core_id(cpu)			(cpu_data[cpu].core)
+#define topology_core_cpumask(cpu)		(&cpu_core_map[cpu])
+#define topology_thread_cpumask(cpu)		(&cpu_sibling_map[cpu])
+#endif
 
 #endif /* __ASM_TOPOLOGY_H */

arch/mips/include/uapi/asm/unistd.h

@@ -373,16 +373,18 @@
 #define __NR_sched_getattr		(__NR_Linux + 350)
 #define __NR_renameat2			(__NR_Linux + 351)
 #define __NR_seccomp			(__NR_Linux + 352)
+#define __NR_getrandom			(__NR_Linux + 353)
+#define __NR_memfd_create		(__NR_Linux + 354)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		352
+#define __NR_Linux_syscalls		354
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		352
+#define __NR_O32_Linux_syscalls		354
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -703,16 +705,18 @@
 #define __NR_sched_getattr		(__NR_Linux + 310)
 #define __NR_renameat2			(__NR_Linux + 311)
 #define __NR_seccomp			(__NR_Linux + 312)
+#define __NR_getrandom			(__NR_Linux + 313)
+#define __NR_memfd_create		(__NR_Linux + 314)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		312
+#define __NR_Linux_syscalls		314
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		312
+#define __NR_64_Linux_syscalls		314
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1037,15 +1041,17 @@
 #define __NR_sched_getattr		(__NR_Linux + 314)
 #define __NR_renameat2			(__NR_Linux + 315)
 #define __NR_seccomp			(__NR_Linux + 316)
+#define __NR_getrandom			(__NR_Linux + 317)
+#define __NR_memfd_create		(__NR_Linux + 318)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		316
+#define __NR_Linux_syscalls		318
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		316
+#define __NR_N32_Linux_syscalls		318
 
 #endif /* _UAPI_ASM_UNISTD_H */

arch/mips/kernel/machine_kexec.c

@@ -71,8 +71,12 @@ machine_kexec(struct kimage *image)
 	kexec_start_address =
 		(unsigned long) phys_to_virt(image->start);
 
-	kexec_indirection_page =
-		(unsigned long) phys_to_virt(image->head & PAGE_MASK);
+	if (image->type == KEXEC_TYPE_DEFAULT) {
+		kexec_indirection_page =
+			(unsigned long) phys_to_virt(image->head & PAGE_MASK);
+	} else {
+		kexec_indirection_page = (unsigned long)&image->head;
+	}
 
 	memcpy((void*)reboot_code_buffer, relocate_new_kernel,
 	       relocate_new_kernel_size);

arch/mips/kernel/scall32-o32.S

@@ -577,3 +577,5 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_getattr		/* 4350 */
 	PTR	sys_renameat2
 	PTR	sys_seccomp
+	PTR	sys_getrandom
+	PTR	sys_memfd_create

arch/mips/kernel/scall64-64.S

@@ -432,4 +432,6 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_getattr		/* 5310 */
 	PTR	sys_renameat2
 	PTR	sys_seccomp
+	PTR	sys_getrandom
+	PTR	sys_memfd_create
 	.size	sys_call_table,.-sys_call_table

arch/mips/kernel/scall64-n32.S

@@ -425,4 +425,6 @@ EXPORT(sysn32_call_table)
 	PTR	sys_sched_getattr
 	PTR	sys_renameat2			/* 6315 */
 	PTR	sys_seccomp
+	PTR	sys_getrandom
+	PTR	sys_memfd_create
 	.size	sysn32_call_table,.-sysn32_call_table

arch/mips/kernel/scall64-o32.S

@@ -562,4 +562,6 @@ EXPORT(sys32_call_table)
 	PTR	sys_sched_getattr		/* 4350 */
 	PTR	sys_renameat2
 	PTR	sys_seccomp
+	PTR	sys_getrandom
+	PTR	sys_memfd_create
 	.size	sys32_call_table,.-sys32_call_table

arch/mips/net/bpf_jit.c

@@ -793,6 +793,7 @@ static int build_body(struct jit_ctx *ctx)
 	const struct sock_filter *inst;
 	unsigned int i, off, load_order, condt;
 	u32 k, b_off __maybe_unused;
+	int tmp;
 
 	for (i = 0; i < prog->len; i++) {
 		u16 code;
@@ -1332,9 +1333,9 @@ static int build_body(struct jit_ctx *ctx)
 		case BPF_ANC | SKF_AD_PKTTYPE:
 			ctx->flags |= SEEN_SKB;
 
-			off = pkt_type_offset();
+			tmp = off = pkt_type_offset();
 
-			if (off < 0)
+			if (tmp < 0)
 				return -1;
 			emit_load_byte(r_tmp, r_skb, off, ctx);
 			/* Keep only the last 3 bits */