Merge tag 'mips_6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - add support for Realtek RTL9302C

 - add support for Mobileye EyeQ6H

 - add support for Mobileye EyeQ OLB system controller

 - improve r4k clocksource

 - add mode for emulating ieee754 NAN2008

 - rework for BMIPS CBR address handling

 - fixes for Loongson 2K1000

 - defconfig updates

 - cleanups and fixes

* tag 'mips_6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (58 commits)
  MIPS: config: Add ip30_defconfig
  MIPS: config: lemote2f: Regenerate defconfig
  MIPS: config: generic: Add board-litex
  MIPS: config: Enable MSA and virtualization for MIPS64R6
  MIPS: Fix fallback march for SB1
  mips: dts: realtek: Add RTL9302C board
  mips: generic: add fdt fixup for Realtek reference board
  mips: select REALTEK_OTTO_TIMER for Realtek platforms
  dt-bindings: interrupt-controller: realtek,rtl-intc: Add rtl9300-intc
  dt-bindings: mips: realtek: Add rtl930x-soc compatible
  dt-bindings: vendor-prefixes: Add Cameo Communications
  mips: dts: realtek: add device_type property to cpu node
  mips: dts: realtek: use "serial" instead of "uart" in node name
  MIPS: Implement ieee754 NAN2008 emulation mode
  MIPS: lantiq: improve USB initialization
  MIPS: GIC: Generate redirect block accessors
  MIPS: CPS: Add a couple of multi-cluster utility functions
  MIPS: Octeron: remove source file executable bit
  MAINTAINERS: Mobileye: add OLB drivers and dt-bindings
  MIPS: mobileye: eyeq5: add OLB system-controller node
  ...

8 files changed, 105 insertions, 32 deletions

diff --git a/arch/mips/include/asm/bmips.h b/arch/mips/include/asm/bmips.h
index 581a6a3c66e4..3a1cdfddb987 100644
--- a/arch/mips/include/asm/bmips.h
+++ b/arch/mips/include/asm/bmips.h
@@ -81,6 +81,7 @@ extern char bmips_smp_movevec[];
 extern char bmips_smp_int_vec[];
 extern char bmips_smp_int_vec_end[];
 
+extern void __iomem *bmips_cbr_addr;
 extern int bmips_smp_enabled;
 extern int bmips_cpu_offset;
 extern cpumask_t bmips_booted_mask;
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 86310d6e1035..bc5ac9887d09 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -129,6 +129,18 @@ static inline int __own_fpu(void)
 	if (ret)
 		return ret;
 
+	if (current->thread.fpu.fcr31 & FPU_CSR_NAN2008) {
+		if (!cpu_has_nan_2008) {
+			ret = SIGFPE;
+			goto failed;
+		}
+	} else {
+		if (!cpu_has_nan_legacy) {
+			ret = SIGFPE;
+			goto failed;
+		}
+	}
+
 	KSTK_STATUS(current) |= ST0_CU1;
 	if (mode == FPU_64BIT || mode == FPU_HYBRID)
 		KSTK_STATUS(current) |= ST0_FR;
@@ -137,6 +149,9 @@ static inline int __own_fpu(void)
 
 	set_thread_flag(TIF_USEDFPU);
 	return 0;
+failed:
+	__disable_fpu();
+	return ret;
 }
 
 static inline int own_fpu_inatomic(int restore)
diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h
index e007edd6b60a..9218b3ae3383 100644
--- a/arch/mips/include/asm/mach-loongson64/boot_param.h
+++ b/arch/mips/include/asm/mach-loongson64/boot_param.h
@@ -42,12 +42,14 @@ enum loongson_cpu_type {
 	Legacy_1B = 0x5,
 	Legacy_2G = 0x6,
 	Legacy_2H = 0x7,
+	Legacy_2K = 0x8,
 	Loongson_1A = 0x100,
 	Loongson_1B = 0x101,
 	Loongson_2E = 0x200,
 	Loongson_2F = 0x201,
 	Loongson_2G = 0x202,
 	Loongson_2H = 0x203,
+	Loongson_2K = 0x204,
 	Loongson_3A = 0x300,
 	Loongson_3B = 0x301
 };
diff --git a/arch/mips/include/asm/mips-cps.h b/arch/mips/include/asm/mips-cps.h
index c077e8d100f5..917009b80e69 100644
--- a/arch/mips/include/asm/mips-cps.h
+++ b/arch/mips/include/asm/mips-cps.h
@@ -8,6 +8,7 @@
 #define __MIPS_ASM_MIPS_CPS_H__
 
 #include <linux/bitfield.h>
+#include <linux/cpumask.h>
 #include <linux/io.h>
 #include <linux/types.h>
 
@@ -228,4 +229,42 @@ static inline unsigned int mips_cps_numvps(unsigned int cluster, unsigned int co
 	return FIELD_GET(CM_GCR_Cx_CONFIG_PVPE, cfg + 1);
 }
 
+/**
+ * mips_cps_multicluster_cpus() - Detect whether CPUs are in multiple clusters
+ *
+ * Determine whether the system includes CPUs in multiple clusters - ie.
+ * whether we can treat the system as single or multi-cluster as far as CPUs
+ * are concerned. Note that this is slightly different to simply checking
+ * whether multiple clusters are present - it is possible for there to be
+ * clusters which contain no CPUs, which this function will effectively ignore.
+ *
+ * Returns true if CPUs are spread across multiple clusters, else false.
+ */
+static inline bool mips_cps_multicluster_cpus(void)
+{
+	unsigned int first_cl, last_cl;
+
+	/*
+	 * CPUs are numbered sequentially by cluster - ie. CPUs 0..X will be in
+	 * cluster 0, CPUs X+1..Y in cluster 1, CPUs Y+1..Z in cluster 2 etc.
+	 *
+	 * Thus we can detect multiple clusters trivially by checking whether
+	 * the first & last CPUs belong to the same cluster.
+	 */
+	first_cl = cpu_cluster(&boot_cpu_data);
+	last_cl = cpu_cluster(&cpu_data[nr_cpu_ids - 1]);
+	return first_cl != last_cl;
+}
+
+/**
+ * mips_cps_first_online_in_cluster() - Detect if CPU is first online in cluster
+ *
+ * Determine whether the local CPU is the first to be brought online in its
+ * cluster - that is, whether there are any other online CPUs in the local
+ * cluster.
+ *
+ * Returns true if this CPU is first online, else false.
+ */
+extern unsigned int mips_cps_first_online_in_cluster(void);
+
 #endif /* __MIPS_ASM_MIPS_CPS_H__ */
diff --git a/arch/mips/include/asm/mips-gic.h b/arch/mips/include/asm/mips-gic.h
index 084cac1c5ea2..fd9da5e3beaa 100644
--- a/arch/mips/include/asm/mips-gic.h
+++ b/arch/mips/include/asm/mips-gic.h
@@ -28,11 +28,13 @@ extern void __iomem *mips_gic_base;
 
 /* For read-only shared registers */
 #define GIC_ACCESSOR_RO(sz, off, name)					\
-	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_SHARED_OFS + off, name)	\
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_REDIR_OFS + off, redir_##name)
 
 /* For read-write shared registers */
 #define GIC_ACCESSOR_RW(sz, off, name)					\
-	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_SHARED_OFS + off, name)	\
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_REDIR_OFS + off, redir_##name)
 
 /* For read-only local registers */
 #define GIC_VX_ACCESSOR_RO(sz, off, name)				\
@@ -45,7 +47,7 @@ extern void __iomem *mips_gic_base;
 	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_REDIR_OFS + off, vo_##name)
 
 /* For read-only shared per-interrupt registers */
-#define GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+#define _GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
 static inline void __iomem *addr_gic_##name(unsigned int intr)		\
 {									\
 	return mips_gic_base + (off) + (intr * (stride));		\
@@ -58,8 +60,8 @@ static inline unsigned int read_gic_##name(unsigned int intr)		\
 }
 
 /* For read-write shared per-interrupt registers */
-#define GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)			\
-	GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+#define _GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
 									\
 static inline void write_gic_##name(unsigned int intr,			\
 				    unsigned int val)			\
@@ -68,22 +70,30 @@ static inline void write_gic_##name(unsigned int intr,			\
 	__raw_writel(val, addr_gic_##name(intr));			\
 }
 
+#define GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off, stride, redir_##name)
+
+#define GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)			\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off, stride, redir_##name)
+
 /* For read-only local per-interrupt registers */
 #define GIC_VX_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
-	GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
 				 stride, vl_##name)			\
-	GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
 				 stride, vo_##name)
 
 /* For read-write local per-interrupt registers */
 #define GIC_VX_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
-	GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
 				 stride, vl_##name)			\
-	GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
 				 stride, vo_##name)
 
 /* For read-only shared bit-per-interrupt registers */
-#define GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+#define _GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
 static inline void __iomem *addr_gic_##name(void)			\
 {									\
 	return mips_gic_base + (off);					\
@@ -106,8 +116,8 @@ static inline unsigned int read_gic_##name(unsigned int intr)		\
 }
 
 /* For read-write shared bit-per-interrupt registers */
-#define GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
-	GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+#define _GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
 									\
 static inline void write_gic_##name(unsigned int intr)			\
 {									\
@@ -146,6 +156,14 @@ static inline void change_gic_##name(unsigned int intr,			\
 	}								\
 }
 
+#define GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RO_INTR_BIT(MIPS_GIC_REDIR_OFS + off, redir_##name)
+
+#define GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RW_INTR_BIT(MIPS_GIC_REDIR_OFS + off, redir_##name)
+
 /* For read-only local bit-per-interrupt registers */
 #define GIC_VX_ACCESSOR_RO_INTR_BIT(sz, off, name)			\
 	GIC_ACCESSOR_RO_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
@@ -155,10 +173,10 @@ static inline void change_gic_##name(unsigned int intr,			\
 
 /* For read-write local bit-per-interrupt registers */
 #define GIC_VX_ACCESSOR_RW_INTR_BIT(sz, off, name)			\
-	GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
-				 vl_##name)				\
-	GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off,		\
-				 vo_##name)
+	_GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
+				  vl_##name)				\
+	_GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off,		\
+				  vo_##name)
 
 /* GIC_SH_CONFIG - Information about the GIC configuration */
 GIC_ACCESSOR_RW(32, 0x000, config)
diff --git a/arch/mips/include/asm/pm.h b/arch/mips/include/asm/pm.h
index 10bb7b640738..7ecd4dfe3846 100644
--- a/arch/mips/include/asm/pm.h
+++ b/arch/mips/include/asm/pm.h
@@ -17,7 +17,7 @@
 
 /* Save CPU state to stack for suspend to RAM */
 .macro SUSPEND_SAVE_REGS
-	subu	sp, PT_SIZE
+	PTR_SUBU	sp, PT_SIZE
 	/* Call preserved GPRs */
 	LONG_S	$16, PT_R16(sp)
 	LONG_S	$17, PT_R17(sp)
@@ -56,13 +56,13 @@
 	LONG_L	$31, PT_R31(sp)
 	/* Pop and return */
 	jr	ra
-	 addiu	sp, PT_SIZE
+	 PTR_ADDIU	sp, PT_SIZE
 	.set	pop
 .endm
 
 /* Get address of static suspend state into t1 */
 .macro LA_STATIC_SUSPEND
-	la	t1, mips_static_suspend_state
+	PTR_LA	t1, mips_static_suspend_state
 .endm
 
 /* Save important CPU state for early restoration to global data */
@@ -72,11 +72,11 @@
 	 * Segment configuration is saved in global data where it can be easily
 	 * reloaded without depending on the segment configuration.
 	 */
-	mfc0	k0, CP0_PAGEMASK, 2	/* SegCtl0 */
+	mfc0	k0, CP0_SEGCTL0
 	LONG_S	k0, SSS_SEGCTL0(t1)
-	mfc0	k0, CP0_PAGEMASK, 3	/* SegCtl1 */
+	mfc0	k0, CP0_SEGCTL1
 	LONG_S	k0, SSS_SEGCTL1(t1)
-	mfc0	k0, CP0_PAGEMASK, 4	/* SegCtl2 */
+	mfc0	k0, CP0_SEGCTL2
 	LONG_S	k0, SSS_SEGCTL2(t1)
 #endif
 	/* save stack pointer (pointing to GPRs) */
@@ -92,11 +92,11 @@
 	 * segments.
 	 */
 	LONG_L	k0, SSS_SEGCTL0(t1)
-	mtc0	k0, CP0_PAGEMASK, 2	/* SegCtl0 */
+	mtc0	k0, CP0_SEGCTL0
 	LONG_L	k0, SSS_SEGCTL1(t1)
-	mtc0	k0, CP0_PAGEMASK, 3	/* SegCtl1 */
+	mtc0	k0, CP0_SEGCTL1
 	LONG_L	k0, SSS_SEGCTL2(t1)
-	mtc0	k0, CP0_PAGEMASK, 4	/* SegCtl2 */
+	mtc0	k0, CP0_SEGCTL2
 	tlbw_use_hazard
 #endif
 	/* restore stack pointer (pointing to GPRs) */
@@ -105,10 +105,10 @@
 
 /* flush caches to make sure context has reached memory */
 .macro SUSPEND_CACHE_FLUSH
-	.extern	__wback_cache_all
+	.extern	__flush_cache_all
 	.set	push
 	.set	noreorder
-	la	t1, __wback_cache_all
+	PTR_LA	t1, __flush_cache_all
 	LONG_L	t0, 0(t1)
 	jalr	t0
 	 nop
diff --git a/arch/mips/include/asm/r4k-timer.h b/arch/mips/include/asm/r4k-timer.h
index 6e7361629348..432e61dd5204 100644
--- a/arch/mips/include/asm/r4k-timer.h
+++ b/arch/mips/include/asm/r4k-timer.h
@@ -12,15 +12,10 @@
 
 #ifdef CONFIG_SYNC_R4K
 
-extern void synchronise_count_master(int cpu);
 extern void synchronise_count_slave(int cpu);
 
 #else
 
-static inline void synchronise_count_master(int cpu)
-{
-}
-
 static inline void synchronise_count_slave(int cpu)
 {
 }
diff --git a/arch/mips/include/asm/sgi/ip22.h b/arch/mips/include/asm/sgi/ip22.h
index 87ec9eaa04e3..57942afb5c86 100644
--- a/arch/mips/include/asm/sgi/ip22.h
+++ b/arch/mips/include/asm/sgi/ip22.h
@@ -76,5 +76,8 @@
 
 extern unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg);
 extern unsigned short ip22_nvram_read(int reg);
+extern void ip22_be_interrupt(int irq);
+extern void ip22_be_init(void) __init;
+extern void indy_8254timer_irq(void);
 
 #endif