Merge tag 'mips_6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

torvalds · torvalds · commit 805ba04cb7cc · 2025-01-27T09:00:25.000-08:00
Pull MIPS updates from Thomas Bogendoerfer:
 "Cleanups and fixes"

* tag 'mips_6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: pci-legacy: Override pci_address_to_pio
  MIPS: Loongson64: env: Use str_on_off() helper in prom_lefi_init_env()
  MIPS: migrate to generic rule for built-in DTBs
  mips: fix shmctl/semctl/msgctl syscall for o32
  mips/math-emu: fix emulation of the prefx instruction
  MIPS: Loongson: Add comments for interface_info
  MIPS: Loongson64: remove ROM Size unit in boardinfo
  MIPS: traps: Use str_enabled_disabled() in parity_protection_init()
  MIPS: ftrace: Declare ftrace_get_parent_ra_addr() as static
  Revert "MIPS: csrc-r4k: Select HAVE_UNSTABLE_SCHED_CLOCK if SMP &amp;&amp; 64BIT"
  MIPS: Fix the wrong format specifier
  MIPS: Add a blank line after __HEAD
  MIPS: kernel: Rename read/write_c0_ecc to read/writec0_errctl
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
@@ -29,10 +29,12 @@ config MIPS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_WANT_LD_ORPHAN_WARN
 	select BUILDTIME_TABLE_SORT
+	select BUILTIN_DTB_ALL if BUILTIN_DTB
 	select CLONE_BACKWARDS
 	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
 	select CPU_PM if CPU_IDLE || SUSPEND
 	select GENERIC_ATOMIC64 if !64BIT
+	select GENERIC_BUILTIN_DTB if BUILTIN_DTB
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CPU_AUTOPROBE
 	select GENERIC_GETTIMEOFDAY
@@ -1084,7 +1086,6 @@ config CSRC_IOASIC
 
 config CSRC_R4K
 	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
-	select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT
 	bool
 
 config CSRC_SB1250
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
@@ -423,9 +423,6 @@ endif
 
 CLEAN_FILES += vmlinux.32 vmlinux.64
 
-# device-trees
-core-y += arch/mips/boot/dts/
-
 archprepare:
 ifdef CONFIG_MIPS32_N32
 	@$(kecho) '  Checking missing-syscalls for N32'
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
@@ -16,5 +16,3 @@ subdir-$(CONFIG_ATH79)			+= qca
 subdir-$(CONFIG_RALINK)			+= ralink
 subdir-$(CONFIG_MACH_REALTEK_RTL)	+= realtek
 subdir-$(CONFIG_FIT_IMAGE_FDT_XILFPGA)	+= xilfpga
-
-obj-$(CONFIG_BUILTIN_DTB)	:= $(addsuffix /, $(subdir-y))
diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
@@ -33,5 +33,3 @@ dtb-$(CONFIG_DT_NONE) += \
 	bcm97420c.dtb \
 	bcm97425svmb.dtb \
 	bcm97435svmb.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/cavium-octeon/Makefile b/arch/mips/boot/dts/cavium-octeon/Makefile
@@ -1,4 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_CAVIUM_OCTEON_SOC)	+= octeon_3xxx.dtb octeon_68xx.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile
@@ -5,5 +5,3 @@ dtb-$(CONFIG_JZ4770_GCW0)	+= gcw0.dtb
 dtb-$(CONFIG_JZ4780_CI20)	+= ci20.dtb
 dtb-$(CONFIG_X1000_CU1000_NEO)	+= cu1000-neo.dtb
 dtb-$(CONFIG_X1830_CU1830_NEO)	+= cu1830-neo.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/lantiq/Makefile b/arch/mips/boot/dts/lantiq/Makefile
@@ -1,4 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DT_EASY50712)	+= danube_easy50712.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile
@@ -5,5 +5,3 @@ dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_4core_rs780e.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_8core_rs780e.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64g_4core_ls7a.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64v_4core_virtio.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/mscc/Makefile b/arch/mips/boot/dts/mscc/Makefile
@@ -8,6 +8,3 @@ dtb-$(CONFIG_SOC_VCOREIII)	+= \
 	ocelot_pcb123.dtb \
 	serval_pcb105.dtb \
 	serval_pcb106.dtb
-
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/mti/Makefile b/arch/mips/boot/dts/mti/Makefile
@@ -1,5 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_MIPS_MALTA)	+= malta.dtb
 dtb-$(CONFIG_LEGACY_BOARD_SEAD3)	+= sead3.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/pic32/Makefile b/arch/mips/boot/dts/pic32/Makefile
@@ -3,5 +3,3 @@ dtb-$(CONFIG_DTB_PIC32_MZDA_SK)		+= pic32mzda_sk.dtb
 
 dtb-$(CONFIG_DTB_PIC32_NONE)		+= \
 					pic32mzda_sk.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile
@@ -10,5 +10,3 @@ dtb-$(CONFIG_SOC_MT7621) += \
 	mt7621-gnubee-gb-pc1.dtb \
 	mt7621-gnubee-gb-pc2.dtb \
 	mt7621-tplink-hc220-g5-v1.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h
@@ -128,10 +128,10 @@ struct irq_source_routing_table {
 } __packed;
 
 struct interface_info {
-	u16 vers; /* version of the specificition */
-	u16 size;
-	u8  flag;
-	char description[64];
+	u16 vers; /* version of the specification */
+	u16 size; /* size of this interface */
+	u8  flag; /* used or unused */
+	char description[64]; /* description for each change */
 } __packed;
 
 #define MAX_RESOURCE_NUMBER 128
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
@@ -2039,8 +2039,8 @@ do {									\
 #define read_c0_perfcntr3_64()	__read_64bit_c0_register($25, 7)
 #define write_c0_perfcntr3_64(val) __write_64bit_c0_register($25, 7, val)
 
-#define read_c0_ecc()		__read_32bit_c0_register($26, 0)
-#define write_c0_ecc(val)	__write_32bit_c0_register($26, 0, val)
+#define read_c0_errctl()	__read_32bit_c0_register($26, 0)
+#define write_c0_errctl(val)	__write_32bit_c0_register($26, 0, val)
 
 #define read_c0_derraddr0()	__read_ulong_c0_register($26, 1)
 #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c
@@ -103,7 +103,7 @@ void sb1480_clockevent_init(void)
 
 	BUG_ON(cpu > 3);	/* Only have 4 general purpose timers */
 
-	sprintf(name, "bcm1480-counter-%d", cpu);
+	sprintf(name, "bcm1480-counter-%u", cpu);
 	cd->name		= name;
 	cd->features		= CLOCK_EVT_FEAT_PERIODIC |
 				  CLOCK_EVT_FEAT_ONESHOT;
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
@@ -248,7 +248,7 @@ int ftrace_disable_ftrace_graph_caller(void)
 #define S_R_SP	(0xafb0 << 16)	/* s{d,w} R, offset(sp) */
 #define OFFSET_MASK	0xffff	/* stack offset range: 0 ~ PT_SIZE */
 
-unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
+static unsigned long ftrace_get_parent_ra_addr(unsigned long self_ra, unsigned long
 		old_parent_ra, unsigned long parent_ra_addr, unsigned long fp)
 {
 	unsigned long sp, ip, tmp;
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
@@ -60,6 +60,7 @@
 	.endm
 
 	__HEAD
+
 #ifndef CONFIG_NO_EXCEPT_FILL
 	/*
 	 * Reserved space for exception handlers.
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
@@ -122,9 +122,8 @@ void mips_mt_set_cpuoptions(void)
 		unsigned long ectlval;
 		unsigned long itcblkgrn;
 
-		/* ErrCtl register is known as "ecc" to Linux */
-		ectlval = read_c0_ecc();
-		write_c0_ecc(ectlval | (0x1 << 26));
+		ectlval = read_c0_errctl();
+		write_c0_errctl(ectlval | (0x1 << 26));
 		ehb();
 #define INDEX_0 (0x80000000)
 #define INDEX_8 (0x80000008)
@@ -145,7 +144,7 @@ void mips_mt_set_cpuoptions(void)
 		ehb();
 		/* Write out to ITU with CACHE op */
 		cache_op(Index_Store_Tag_D, INDEX_0);
-		write_c0_ecc(ectlval);
+		write_c0_errctl(ectlval);
 		ehb();
 		printk("Mapped %ld ITC cells starting at 0x%08x\n",
 			((itcblkgrn & 0x7fe00000) >> 20), itc_base);
diff --git a/arch/mips/kernel/spram.c b/arch/mips/kernel/spram.c
@@ -26,10 +26,6 @@
 
 #define ERRCTL_SPRAM		(1 << 28)
 
-/* errctl access */
-#define read_c0_errctl(x) read_c0_ecc(x)
-#define write_c0_errctl(x) write_c0_ecc(x)
-
 /*
  * Different semantics to the set_c0_* function built by __BUILD_SET_C0
  */
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -382,15 +382,15 @@
 368	o32	io_pgetevents			sys_io_pgetevents_time32	compat_sys_io_pgetevents
 # room for arch specific calls
 393	o32	semget				sys_semget
-394	o32	semctl				sys_semctl			compat_sys_semctl
+394	o32	semctl				sys_old_semctl		compat_sys_old_semctl
 395	o32	shmget				sys_shmget
-396	o32	shmctl				sys_shmctl			compat_sys_shmctl
+396	o32	shmctl				sys_old_shmctl		compat_sys_old_shmctl
 397	o32	shmat				sys_shmat			compat_sys_shmat
 398	o32	shmdt				sys_shmdt
 399	o32	msgget				sys_msgget
 400	o32	msgsnd				sys_msgsnd			compat_sys_msgsnd
 401	o32	msgrcv				sys_msgrcv			compat_sys_msgrcv
-402	o32	msgctl				sys_msgctl			compat_sys_msgctl
+402	o32	msgctl				sys_old_msgctl		compat_sys_old_msgctl
 403	o32	clock_gettime64			sys_clock_gettime		sys_clock_gettime
 404	o32	clock_settime64			sys_clock_settime		sys_clock_settime
 405	o32	clock_adjtime64			sys_clock_adjtime		sys_clock_adjtime
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
@@ -38,6 +38,7 @@
 #include <linux/kdb.h>
 #include <linux/irq.h>
 #include <linux/perf_event.h>
+#include <linux/string_choices.h>
 
 #include <asm/addrspace.h>
 #include <asm/bootinfo.h>
@@ -1705,10 +1706,10 @@ static inline __init void parity_protection_init(void)
 		l2parity &= l1parity;
 
 		/* Probe L1 ECC support */
-		cp0_ectl = read_c0_ecc();
-		write_c0_ecc(cp0_ectl | ERRCTL_PE);
+		cp0_ectl = read_c0_errctl();
+		write_c0_errctl(cp0_ectl | ERRCTL_PE);
 		back_to_back_c0_hazard();
-		cp0_ectl = read_c0_ecc();
+		cp0_ectl = read_c0_errctl();
 
 		/* Probe L2 ECC support */
 		gcr_ectl = read_gcr_err_control();
@@ -1727,9 +1728,9 @@ static inline __init void parity_protection_init(void)
 			cp0_ectl |= ERRCTL_PE;
 		else
 			cp0_ectl &= ~ERRCTL_PE;
-		write_c0_ecc(cp0_ectl);
+		write_c0_errctl(cp0_ectl);
 		back_to_back_c0_hazard();
-		WARN_ON(!!(read_c0_ecc() & ERRCTL_PE) != l1parity);
+		WARN_ON(!!(read_c0_errctl() & ERRCTL_PE) != l1parity);
 
 		/* Configure L2 ECC checking */
 		if (l2parity)
@@ -1741,8 +1742,8 @@ static inline __init void parity_protection_init(void)
 		gcr_ectl &= CM_GCR_ERR_CONTROL_L2_ECC_EN;
 		WARN_ON(!!gcr_ectl != l2parity);
 
-		pr_info("Cache parity protection %sabled\n",
-			l1parity ? "en" : "dis");
+		pr_info("Cache parity protection %s\n",
+			str_enabled_disabled(l1parity));
 		return;
 	}
 
@@ -1761,18 +1762,18 @@ static inline __init void parity_protection_init(void)
 			unsigned long errctl;
 			unsigned int l1parity_present, l2parity_present;
 
-			errctl = read_c0_ecc();
+			errctl = read_c0_errctl();
 			errctl &= ~(ERRCTL_PE|ERRCTL_L2P);
 
 			/* probe L1 parity support */
-			write_c0_ecc(errctl | ERRCTL_PE);
+			write_c0_errctl(errctl | ERRCTL_PE);
 			back_to_back_c0_hazard();
-			l1parity_present = (read_c0_ecc() & ERRCTL_PE);
+			l1parity_present = (read_c0_errctl() & ERRCTL_PE);
 
 			/* probe L2 parity support */
-			write_c0_ecc(errctl|ERRCTL_L2P);
+			write_c0_errctl(errctl|ERRCTL_L2P);
 			back_to_back_c0_hazard();
-			l2parity_present = (read_c0_ecc() & ERRCTL_L2P);
+			l2parity_present = (read_c0_errctl() & ERRCTL_L2P);
 
 			if (l1parity_present && l2parity_present) {
 				if (l1parity)
@@ -1791,32 +1792,32 @@ static inline __init void parity_protection_init(void)
 
 			printk(KERN_INFO "Writing ErrCtl register=%08lx\n", errctl);
 
-			write_c0_ecc(errctl);
+			write_c0_errctl(errctl);
 			back_to_back_c0_hazard();
-			errctl = read_c0_ecc();
+			errctl = read_c0_errctl();
 			printk(KERN_INFO "Readback ErrCtl register=%08lx\n", errctl);
 
 			if (l1parity_present)
-				printk(KERN_INFO "Cache parity protection %sabled\n",
-				       (errctl & ERRCTL_PE) ? "en" : "dis");
+				pr_info("Cache parity protection %s\n",
+					str_enabled_disabled(errctl & ERRCTL_PE));
 
 			if (l2parity_present) {
 				if (l1parity_present && l1parity)
 					errctl ^= ERRCTL_L2P;
-				printk(KERN_INFO "L2 cache parity protection %sabled\n",
-				       (errctl & ERRCTL_L2P) ? "en" : "dis");
+				pr_info("L2 cache parity protection %s\n",
+					str_enabled_disabled(errctl & ERRCTL_L2P));
 			}
 		}
 		break;
 
 	case CPU_5KC:
 	case CPU_5KE:
 	case CPU_LOONGSON32:
-		write_c0_ecc(0x80000000);
+		write_c0_errctl(0x80000000);
 		back_to_back_c0_hazard();
 		/* Set the PE bit (bit 31) in the c0_errctl register. */
-		printk(KERN_INFO "Cache parity protection %sabled\n",
-		       (read_c0_ecc() & 0x80000000) ? "en" : "dis");
+		pr_info("Cache parity protection %s\n",
+			str_enabled_disabled(read_c0_errctl() & 0x80000000));
 		break;
 	case CPU_20KC:
 	case CPU_25KF:
@@ -1887,8 +1888,8 @@ asmlinkage void do_ftlb(void)
 	if ((cpu_has_mips_r2_r6) &&
 	    (((current_cpu_data.processor_id & 0xff0000) == PRID_COMP_MIPS) ||
 	    ((current_cpu_data.processor_id & 0xff0000) == PRID_COMP_LOONGSON))) {
-		pr_err("FTLB error exception, cp0_ecc=0x%08x:\n",
-		       read_c0_ecc());
+		pr_err("FTLB error exception, cp0_errctl=0x%08x:\n",
+		       read_c0_errctl());
 		pr_err("cp0_errorepc == %0*lx\n", field, read_c0_errorepc());
 		reg_val = read_c0_cacheerr();
 		pr_err("c0_cacheerr == %08x\n", reg_val);
diff --git a/arch/mips/loongson64/boardinfo.c b/arch/mips/loongson64/boardinfo.c
@@ -21,13 +21,11 @@ static ssize_t boardinfo_show(struct kobject *kobj,
 		       "BIOS Info\n"
 		       "Vendor\t\t\t: %s\n"
 		       "Version\t\t\t: %s\n"
-		       "ROM Size\t\t: %d KB\n"
 		       "Release Date\t\t: %s\n",
 		       strsep(&tmp_board_manufacturer, "-"),
 		       eboard->name,
 		       strsep(&tmp_bios_vendor, "-"),
 		       einter->description,
-		       einter->size,
 		       especial->special_name);
 }
 static struct kobj_attribute boardinfo_attr = __ATTR(boardinfo, 0444,
diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c
@@ -17,6 +17,7 @@
 #include <linux/dma-map-ops.h>
 #include <linux/export.h>
 #include <linux/pci_ids.h>
+#include <linux/string_choices.h>
 #include <asm/bootinfo.h>
 #include <loongson.h>
 #include <boot_param.h>
@@ -162,7 +163,7 @@ void __init prom_lefi_init_env(void)
 		dma_default_coherent = !eirq_source->dma_noncoherent;
 	}
 
-	pr_info("Firmware: Coherent DMA: %s\n", dma_default_coherent ? "on" : "off");
+	pr_info("Firmware: Coherent DMA: %s\n", str_on_off(dma_default_coherent));
 
 	loongson_sysconf.restart_addr = boot_p->reset_system.ResetWarm;
 	loongson_sysconf.poweroff_addr = boot_p->reset_system.Shutdown;
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
@@ -1660,7 +1660,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 		break;
 	}
 
-	case 0x3:
+	case 0x7:
 		if (MIPSInst_FUNC(ir) != pfetch_op)
 			return SIGILL;
 
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c
@@ -29,6 +29,14 @@ static LIST_HEAD(controllers);
 
 static int pci_initialized;
 
+unsigned long pci_address_to_pio(phys_addr_t address)
+{
+	if (address > IO_SPACE_LIMIT)
+		return (unsigned long)-1;
+
+	return (unsigned long) address;
+}
+
 /*
  * We need to avoid collisions with `mirrored' VGA ports
  * and other strange ISA hardware, so we always want the
