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LoongArch changes for v6.13

Browse Source 
1, Fix build failure with GCC 15 (-std=gnu23);
 2, Add PREEMPT_RT/PREEMPT_LAZY support;
 3, Add I2S in DTS for Loongson-2K1000/Loongson-2K2000;
 4, Some bug fixes and other small changes.
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Merge tag 'loongarch-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Fix build failure with GCC 15 due to default -std=gnu23

 - Add PREEMPT_RT/PREEMPT_LAZY support

 - Add I2S in DTS for Loongson-2K1000/Loongson-2K2000

 - Some bug fixes and other small changes

* tag 'loongarch-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Update Loongson-3 default config file
  LoongArch: dts: Add I2S support to Loongson-2K2000
  LoongArch: dts: Add I2S support to Loongson-2K1000
  LoongArch: Allow to enable PREEMPT_LAZY
  LoongArch: Allow to enable PREEMPT_RT
  LoongArch: Select HAVE_POSIX_CPU_TIMERS_TASK_WORK
  LoongArch: Fix sleeping in atomic context for PREEMPT_RT
  LoongArch: Reduce min_delta for the arch clockevent device
  LoongArch: BPF: Sign-extend return values
  LoongArch: Fix build failure with GCC 15 (-std=gnu23)
  LoongArch: Explicitly specify code model in Makefile
This commit is contained in:
Linus Torvalds 2024-11-27 11:15:27 -08:00
commit c946969775
10 changed files with 134 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/loongarch/Kconfig
View File

@ -23,6 +23,7 @@ config LOONGARCH
select ARCH_HAS_KERNEL_FPU_SUPPORT if CPU_HAS_FPU
select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PREEMPT_LAZY
select ARCH_HAS_PTE_DEVMAP
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SET_MEMORY
@ -66,6 +67,7 @@ config LOONGARCH
select ARCH_SUPPORTS_LTO_CLANG
select ARCH_SUPPORTS_LTO_CLANG_THIN
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_SUPPORTS_RT
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_USE_QUEUED_RWLOCKS
@ -155,6 +157,7 @@ config LOONGARCH
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select HAVE_POSIX_CPU_TIMERS_TASK_WORK
select HAVE_PREEMPT_DYNAMIC_KEY
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE if UNWINDER_ORC

4
arch/loongarch/Makefile
View File

@ -59,7 +59,7 @@ endif
ifdef CONFIG_64BIT
ld-emul = $(64bit-emul)
cflags-y += -mabi=lp64s
cflags-y += -mabi=lp64s -mcmodel=normal
endif
cflags-y += -pipe $(CC_FLAGS_NO_FPU)
@ -104,7 +104,7 @@ ifdef CONFIG_OBJTOOL
KBUILD_CFLAGS += -fno-jump-tables
endif
KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat
KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat -Ccode-model=small
KBUILD_RUSTFLAGS_KERNEL += -Zdirect-access-external-data=yes
KBUILD_RUSTFLAGS_MODULE += -Zdirect-access-external-data=no

17
arch/loongarch/boot/dts/loongson-2k1000.dtsi
View File

@ -266,7 +266,7 @@ dma-controller@1fe00c10 {
status = "disabled";
};
dma-controller@1fe00c20 {
apbdma2: dma-controller@1fe00c20 {
compatible = "loongson,ls2k1000-apbdma";
reg = <0x0 0x1fe00c20 0x0 0x8>;
interrupt-parent = <&liointc1>;
@ -276,7 +276,7 @@ dma-controller@1fe00c20 {
status = "disabled";
};
dma-controller@1fe00c30 {
apbdma3: dma-controller@1fe00c30 {
compatible = "loongson,ls2k1000-apbdma";
reg = <0x0 0x1fe00c30 0x0 0x8>;
interrupt-parent = <&liointc1>;
@ -352,6 +352,19 @@ rtc0: rtc@1fe27800 {
status = "disabled";
};
i2s: i2s@1fe2d000 {
compatible = "loongson,ls2k1000-i2s";
reg = <0 0x1fe2d000 0 0x14>,
<0 0x1fe00438 0 0x8>;
interrupt-parent = <&liointc0>;
interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk LOONGSON2_APB_CLK>;
dmas = <&apbdma2 0>, <&apbdma3 0>;
dma-names = "tx", "rx";
#sound-dai-cells = <0>;
status = "disabled";
};
spi0: spi@1fff0220 {
compatible = "loongson,ls2k1000-spi";
reg = <0x0 0x1fff0220 0x0 0x10>;

22
arch/loongarch/boot/dts/loongson-2k2000.dtsi
View File

@ -173,6 +173,22 @@ rtc0: rtc@100d0100 {
status = "disabled";
};
i2c@1fe00120 {
compatible = "loongson,ls2k-i2c";
reg = <0x0 0x1fe00120 0x0 0x8>;
interrupt-parent = <&liointc>;
interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
i2c@1fe00130 {
compatible = "loongson,ls2k-i2c";
reg = <0x0 0x1fe00130 0x0 0x8>;
interrupt-parent = <&liointc>;
interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
uart0: serial@1fe001e0 {
compatible = "ns16550a";
reg = <0x0 0x1fe001e0 0x0 0x10>;
@ -243,9 +259,11 @@ display@6,1 {
status = "disabled";
};
hda@7,0 {
i2s@7,0 {
reg = <0x3800 0x0 0x0 0x0 0x0>;
interrupts = <58 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <78 IRQ_TYPE_LEVEL_HIGH>,
<79 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "tx", "rx";
interrupt-parent = <&pic>;
status = "disabled";
};

91
arch/loongarch/configs/loongson3_defconfig
View File

@ -1,4 +1,5 @@
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_KERNEL_ZSTD=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_NO_HZ=y
@ -70,6 +71,14 @@ CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_ACPI_BGRT=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
CONFIG_LOONGSON3_CPUFREQ=m
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_JUMP_LABEL=y
@ -78,6 +87,9 @@ CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_COMPRESS=y
CONFIG_MODULE_COMPRESS_ZSTD=y
CONFIG_MODULE_DECOMPRESS=y
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BLK_WBT=y
@ -85,6 +97,8 @@ CONFIG_BLK_CGROUP_IOLATENCY=y
CONFIG_BLK_CGROUP_FC_APPID=y
CONFIG_BLK_CGROUP_IOCOST=y
CONFIG_BLK_CGROUP_IOPRIO=y
CONFIG_BLK_INLINE_ENCRYPTION=y
CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_BSD_DISKLABEL=y
CONFIG_UNIXWARE_DISKLABEL=y
@ -413,7 +427,16 @@ CONFIG_PARPORT_PC=y
CONFIG_PARPORT_SERIAL=y
CONFIG_PARPORT_PC_FIFO=y
CONFIG_ZRAM=m
CONFIG_ZRAM_BACKEND_LZ4=y
CONFIG_ZRAM_BACKEND_LZ4HC=y
CONFIG_ZRAM_BACKEND_ZSTD=y
CONFIG_ZRAM_BACKEND_DEFLATE=y
CONFIG_ZRAM_BACKEND_842=y
CONFIG_ZRAM_BACKEND_LZO=y
CONFIG_ZRAM_DEF_COMP_ZSTD=y
CONFIG_ZRAM_WRITEBACK=y
CONFIG_ZRAM_MEMORY_TRACKING=y
CONFIG_ZRAM_MULTI_COMP=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_DRBD=m
CONFIG_BLK_DEV_NBD=m
@ -433,6 +456,9 @@ CONFIG_NVME_TARGET_RDMA=m
CONFIG_NVME_TARGET_FC=m
CONFIG_NVME_TARGET_TCP=m
CONFIG_EEPROM_AT24=m
CONFIG_PVPANIC=y
CONFIG_PVPANIC_MMIO=m
CONFIG_PVPANIC_PCI=m
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
@ -470,12 +496,10 @@ CONFIG_PATA_ATIIXP=y
CONFIG_PATA_PCMCIA=m
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_MULTIPATH=m
CONFIG_BCACHE=m
CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=m
@ -489,6 +513,16 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
CONFIG_DM_MULTIPATH_HST=m
CONFIG_DM_MULTIPATH_IOA=m
CONFIG_DM_INIT=y
CONFIG_DM_UEVENT=y
CONFIG_DM_VERITY=m
CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG=y
CONFIG_DM_VERITY_FEC=y
CONFIG_DM_INTEGRITY=m
CONFIG_DM_ZONED=m
CONFIG_DM_VDO=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@ -500,6 +534,13 @@ CONFIG_NETDEVICES=y
CONFIG_BONDING=m
CONFIG_DUMMY=y
CONFIG_WIREGUARD=m
CONFIG_IFB=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
CONFIG_NET_TEAM_MODE_ROUNDROBIN=m
CONFIG_NET_TEAM_MODE_RANDOM=m
CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=m
CONFIG_NET_TEAM_MODE_LOADBALANCE=m
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
CONFIG_IPVLAN=m
@ -580,12 +621,14 @@ CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=m
CONFIG_USB_USBNET=m
# CONFIG_USB_NET_AX8817X is not set
# CONFIG_USB_NET_AX88179_178A is not set
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_HUAWEI_CDC_NCM=m
CONFIG_USB_NET_CDC_MBIM=m
# CONFIG_USB_NET_NET1080 is not set
CONFIG_USB_NET_RNDIS_HOST=m
# CONFIG_USB_BELKIN is not set
# CONFIG_USB_ARMLINUX is not set
# CONFIG_USB_NET_ZAURUS is not set
@ -594,10 +637,11 @@ CONFIG_ATH9K_HTC=m
CONFIG_IWLWIFI=m
CONFIG_IWLDVM=m
CONFIG_IWLMVM=m
CONFIG_HOSTAP=m
CONFIG_MT7601U=m
CONFIG_RT2X00=m
CONFIG_RT2800USB=m
CONFIG_RTL8180=m
CONFIG_RTL8187=m
CONFIG_RTL8192CE=m
CONFIG_RTL8192SE=m
CONFIG_RTL8192DE=m
@ -607,18 +651,26 @@ CONFIG_RTL8188EE=m
CONFIG_RTL8192EE=m
CONFIG_RTL8821AE=m
CONFIG_RTL8192CU=m
CONFIG_RTL8192DU=m
# CONFIG_RTLWIFI_DEBUG is not set
CONFIG_RTL8XXXU=m
CONFIG_RTW88=m
CONFIG_RTW88_8822BE=m
CONFIG_RTW88_8822BU=m
CONFIG_RTW88_8822CE=m
CONFIG_RTW88_8822CU=m
CONFIG_RTW88_8723DE=m
CONFIG_RTW88_8723DU=m
CONFIG_RTW88_8821CE=m
CONFIG_RTW88_8821CU=m
CONFIG_RTW89=m
CONFIG_RTW89_8851BE=m
CONFIG_RTW89_8852AE=m
CONFIG_RTW89_8852BE=m
CONFIG_RTW89_8852BTE=m
CONFIG_RTW89_8852CE=m
CONFIG_RTW89_8922AE=m
CONFIG_ZD1211RW=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_USB4_NET=m
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
@ -651,6 +703,9 @@ CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_PIIX4=y
CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_SLAVE=y
CONFIG_I2C_DESIGNWARE_PCI=y
CONFIG_I2C_GPIO=y
CONFIG_I2C_LS2X=y
CONFIG_SPI=y
@ -727,11 +782,22 @@ CONFIG_SND_HDA_CODEC_CONEXANT=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_SOC=m
CONFIG_SND_SOC_LOONGSON_CARD=m
CONFIG_SND_SOC_ES7134=m
CONFIG_SND_SOC_ES7241=m
CONFIG_SND_SOC_ES8311=m
CONFIG_SND_SOC_ES8316=m
CONFIG_SND_SOC_ES8323=m
CONFIG_SND_SOC_ES8326=m
CONFIG_SND_SOC_ES8328_I2C=m
CONFIG_SND_SOC_ES8328_SPI=m
CONFIG_SND_SOC_UDA1334=m
CONFIG_SND_SOC_UDA1342=m
CONFIG_SND_VIRTIO=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_A4TECH=m
CONFIG_HID_CHERRY=m
CONFIG_HID_ELAN=m
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_LOGITECH_FF=y
@ -740,7 +806,11 @@ CONFIG_LOGIG940_FF=y
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MULTITOUCH=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_WACOM=m
CONFIG_USB_HIDDEV=y
CONFIG_I2C_HID_ACPI=m
CONFIG_I2C_HID_OF=m
CONFIG_I2C_HID_OF_ELAN=m
CONFIG_USB=y
CONFIG_USB_OTG=y
CONFIG_USB_MON=y
@ -852,6 +922,9 @@ CONFIG_F2FS_FS=m
CONFIG_F2FS_FS_SECURITY=y
CONFIG_F2FS_CHECK_FS=y
CONFIG_F2FS_FS_COMPRESSION=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
CONFIG_FS_VERITY=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
@ -904,16 +977,14 @@ CONFIG_SQUASHFS_ZSTD=y
CONFIG_MINIX_FS=m
CONFIG_ROMFS_FS=m
CONFIG_PSTORE=m
CONFIG_PSTORE_LZO_COMPRESS=m
CONFIG_PSTORE_LZ4_COMPRESS=m
CONFIG_PSTORE_LZ4HC_COMPRESS=m
CONFIG_PSTORE_842_COMPRESS=y
CONFIG_PSTORE_ZSTD_COMPRESS=y
CONFIG_PSTORE_ZSTD_COMPRESS_DEFAULT=y
CONFIG_PSTORE_COMPRESS=y
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
CONFIG_EROFS_FS=m
CONFIG_EROFS_FS_ZIP_LZMA=y
CONFIG_EROFS_FS_ZIP_DEFLATE=y
CONFIG_EROFS_FS_ZIP_ZSTD=y
CONFIG_EROFS_FS_ONDEMAND=y
CONFIG_EROFS_FS_PCPU_KTHREAD=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3_ACL=y

8
arch/loongarch/include/asm/thread_info.h
View File

@ -66,8 +66,9 @@ register unsigned long current_stack_pointer __asm__("$sp");
* - pending work-to-be-done flags are in LSW
* - other flags in MSW
*/
#define TIF_SIGPENDING 1 /* signal pending */
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
#define TIF_NEED_RESCHED 0 /* rescheduling necessary */
#define TIF_NEED_RESCHED_LAZY 1 /* lazy rescheduling necessary */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NOTIFY_RESUME 3 /* callback before returning to user */
#define TIF_NOTIFY_SIGNAL 4 /* signal notifications exist */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
@ -88,8 +89,9 @@ register unsigned long current_stack_pointer __asm__("$sp");
#define TIF_LBT_CTX_LIVE 20 /* LBT context must be preserved */
#define TIF_PATCH_PENDING 21 /* pending live patching update */
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_NEED_RESCHED_LAZY (1<<TIF_NEED_RESCHED_LAZY)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL)
#define _TIF_NOHZ (1<<TIF_NOHZ)

6
arch/loongarch/kernel/time.c
View File

@ -127,7 +127,11 @@ void sync_counter(void)
int constant_clockevent_init(void)
{
unsigned int cpu = smp_processor_id();
unsigned long min_delta = 0x600;
#ifdef CONFIG_PREEMPT_RT
unsigned long min_delta = 100;
#else
unsigned long min_delta = 1000;
#endif
unsigned long max_delta = (1UL << 48) - 1;
struct clock_event_device *cd;
static int irq = 0, timer_irq_installed = 0;

2
arch/loongarch/mm/tlb.c
View File

@ -289,7 +289,7 @@ static void setup_tlb_handler(int cpu)
/* Avoid lockdep warning */
rcutree_report_cpu_starting(cpu);
#ifdef CONFIG_NUMA
#if defined(CONFIG_NUMA) && !defined(CONFIG_PREEMPT_RT)
vec_sz = sizeof(exception_handlers);
if (pcpu_handlers[cpu])

2
arch/loongarch/net/bpf_jit.c
View File

@ -179,7 +179,7 @@ static void __build_epilogue(struct jit_ctx *ctx, bool is_tail_call)
if (!is_tail_call) {
/* Set return value */
move_reg(ctx, LOONGARCH_GPR_A0, regmap[BPF_REG_0]);
emit_insn(ctx, addiw, LOONGARCH_GPR_A0, regmap[BPF_REG_0], 0);
/* Return to the caller */
emit_insn(ctx, jirl, LOONGARCH_GPR_RA, LOONGARCH_GPR_ZERO, 0);
} else {

2
arch/loongarch/vdso/Makefile
View File

@ -19,7 +19,7 @@ ccflags-vdso := \
cflags-vdso := $(ccflags-vdso) \
-isystem $(shell $(CC) -print-file-name=include) \
$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
-O2 -g -fno-strict-aliasing -fno-common -fno-builtin \
-std=gnu11 -O2 -g -fno-strict-aliasing -fno-common -fno-builtin \
-fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \
$(call cc-option, -fno-asynchronous-unwind-tables) \
$(call cc-option, -fno-stack-protector)