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-rw-r--r--arch/riscv/Makefile1
-rw-r--r--arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi51
-rw-r--r--arch/riscv/errata/andes/Makefile4
-rw-r--r--arch/riscv/include/asm/ftrace.h21
-rw-r--r--arch/riscv/include/asm/hugetlb.h3
-rw-r--r--arch/riscv/include/asm/kprobes.h11
-rw-r--r--arch/riscv/include/asm/uprobes.h13
-rw-r--r--arch/riscv/kernel/irq.c4
-rw-r--r--arch/riscv/kernel/setup.c13
-rw-r--r--arch/riscv/kernel/signal.c7
-rw-r--r--arch/riscv/kernel/traps.c28
-rw-r--r--arch/riscv/kvm/vcpu_onereg.c7
-rw-r--r--arch/riscv/mm/hugetlbpage.c3
-rw-r--r--arch/riscv/net/bpf_jit_comp64.c18
14 files changed, 114 insertions, 70 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 1329e060c548..b43a6bb7e4dc 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -6,7 +6,6 @@
# for more details.
#
-OBJCOPYFLAGS := -O binary
LDFLAGS_vmlinux := -z norelro
ifeq ($(CONFIG_RELOCATABLE),y)
LDFLAGS_vmlinux += -shared -Bsymbolic -z notext --emit-relocs
diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index d79f94432b27..12ebe9792356 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -262,7 +262,7 @@
reg = <0x100000 0x400000>;
};
reserved-data@600000 {
- reg = <0x600000 0x1000000>;
+ reg = <0x600000 0xa00000>;
};
};
};
@@ -440,30 +440,6 @@
};
};
- uart0_pins: uart0-0 {
- tx-pins {
- pinmux = <GPIOMUX(5, GPOUT_SYS_UART0_TX,
- GPOEN_ENABLE,
- GPI_NONE)>;
- bias-disable;
- drive-strength = <12>;
- input-disable;
- input-schmitt-disable;
- slew-rate = <0>;
- };
-
- rx-pins {
- pinmux = <GPIOMUX(6, GPOUT_LOW,
- GPOEN_DISABLE,
- GPI_SYS_UART0_RX)>;
- bias-disable; /* external pull-up */
- drive-strength = <2>;
- input-enable;
- input-schmitt-enable;
- slew-rate = <0>;
- };
- };
-
tdm_pins: tdm-0 {
tx-pins {
pinmux = <GPIOMUX(44, GPOUT_SYS_TDM_TXD,
@@ -497,6 +473,30 @@
input-enable;
};
};
+
+ uart0_pins: uart0-0 {
+ tx-pins {
+ pinmux = <GPIOMUX(5, GPOUT_SYS_UART0_TX,
+ GPOEN_ENABLE,
+ GPI_NONE)>;
+ bias-disable;
+ drive-strength = <12>;
+ input-disable;
+ input-schmitt-disable;
+ slew-rate = <0>;
+ };
+
+ rx-pins {
+ pinmux = <GPIOMUX(6, GPOUT_LOW,
+ GPOEN_DISABLE,
+ GPI_SYS_UART0_RX)>;
+ bias-disable; /* external pull-up */
+ drive-strength = <2>;
+ input-enable;
+ input-schmitt-enable;
+ slew-rate = <0>;
+ };
+ };
};
&tdm {
@@ -513,6 +513,7 @@
&usb0 {
dr_mode = "peripheral";
+ status = "okay";
};
&U74_1 {
diff --git a/arch/riscv/errata/andes/Makefile b/arch/riscv/errata/andes/Makefile
index 2d644e19caef..6278c389b801 100644
--- a/arch/riscv/errata/andes/Makefile
+++ b/arch/riscv/errata/andes/Makefile
@@ -1 +1,5 @@
+ifdef CONFIG_RISCV_ALTERNATIVE_EARLY
+CFLAGS_errata.o := -mcmodel=medany
+endif
+
obj-y += errata.o
diff --git a/arch/riscv/include/asm/ftrace.h b/arch/riscv/include/asm/ftrace.h
index 740a979171e5..2b2f5df7ef2c 100644
--- a/arch/riscv/include/asm/ftrace.h
+++ b/arch/riscv/include/asm/ftrace.h
@@ -31,6 +31,27 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr)
return addr;
}
+/*
+ * Let's do like x86/arm64 and ignore the compat syscalls.
+ */
+#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS
+static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
+{
+ return is_compat_task();
+}
+
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+static inline bool arch_syscall_match_sym_name(const char *sym,
+ const char *name)
+{
+ /*
+ * Since all syscall functions have __riscv_ prefix, we must skip it.
+ * However, as we described above, we decided to ignore compat
+ * syscalls, so we don't care about __riscv_compat_ prefix here.
+ */
+ return !strcmp(sym + 8, name);
+}
+
struct dyn_arch_ftrace {
};
#endif
diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h
index 34e24f078cc1..4c5b0e929890 100644
--- a/arch/riscv/include/asm/hugetlb.h
+++ b/arch/riscv/include/asm/hugetlb.h
@@ -18,7 +18,8 @@ void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
void set_huge_pte_at(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep, pte_t pte);
+ unsigned long addr, pte_t *ptep, pte_t pte,
+ unsigned long sz);
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
diff --git a/arch/riscv/include/asm/kprobes.h b/arch/riscv/include/asm/kprobes.h
index e7882ccb0fd4..78ea44f76718 100644
--- a/arch/riscv/include/asm/kprobes.h
+++ b/arch/riscv/include/asm/kprobes.h
@@ -40,6 +40,15 @@ void arch_remove_kprobe(struct kprobe *p);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int trapnr);
bool kprobe_breakpoint_handler(struct pt_regs *regs);
bool kprobe_single_step_handler(struct pt_regs *regs);
-
+#else
+static inline bool kprobe_breakpoint_handler(struct pt_regs *regs)
+{
+ return false;
+}
+
+static inline bool kprobe_single_step_handler(struct pt_regs *regs)
+{
+ return false;
+}
#endif /* CONFIG_KPROBES */
#endif /* _ASM_RISCV_KPROBES_H */
diff --git a/arch/riscv/include/asm/uprobes.h b/arch/riscv/include/asm/uprobes.h
index f2183e00fdd2..3fc7deda9190 100644
--- a/arch/riscv/include/asm/uprobes.h
+++ b/arch/riscv/include/asm/uprobes.h
@@ -34,7 +34,18 @@ struct arch_uprobe {
bool simulate;
};
+#ifdef CONFIG_UPROBES
bool uprobe_breakpoint_handler(struct pt_regs *regs);
bool uprobe_single_step_handler(struct pt_regs *regs);
-
+#else
+static inline bool uprobe_breakpoint_handler(struct pt_regs *regs)
+{
+ return false;
+}
+
+static inline bool uprobe_single_step_handler(struct pt_regs *regs)
+{
+ return false;
+}
+#endif /* CONFIG_UPROBES */
#endif /* _ASM_RISCV_UPROBES_H */
diff --git a/arch/riscv/kernel/irq.c b/arch/riscv/kernel/irq.c
index a8efa053c4a5..9cc0a7669271 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -60,7 +60,7 @@ static void init_irq_stacks(void)
}
#endif /* CONFIG_VMAP_STACK */
-#ifdef CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
+#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK
void do_softirq_own_stack(void)
{
#ifdef CONFIG_IRQ_STACKS
@@ -92,7 +92,7 @@ void do_softirq_own_stack(void)
#endif
__do_softirq();
}
-#endif /* CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK */
+#endif /* CONFIG_SOFTIRQ_ON_OWN_STACK */
#else
static void init_irq_stacks(void) {}
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index e600aab116a4..aac853ae4eb7 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -173,19 +173,6 @@ static void __init init_resources(void)
if (ret < 0)
goto error;
-#ifdef CONFIG_KEXEC_CORE
- if (crashk_res.start != crashk_res.end) {
- ret = add_resource(&iomem_resource, &crashk_res);
- if (ret < 0)
- goto error;
- }
- if (crashk_low_res.start != crashk_low_res.end) {
- ret = add_resource(&iomem_resource, &crashk_low_res);
- if (ret < 0)
- goto error;
- }
-#endif
-
#ifdef CONFIG_CRASH_DUMP
if (elfcorehdr_size > 0) {
elfcorehdr_res.start = elfcorehdr_addr;
diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c
index 180d951d3624..21a4d0e111bc 100644
--- a/arch/riscv/kernel/signal.c
+++ b/arch/riscv/kernel/signal.c
@@ -311,13 +311,6 @@ static inline void __user *get_sigframe(struct ksignal *ksig,
/* Align the stack frame. */
sp &= ~0xfUL;
- /*
- * Fail if the size of the altstack is not large enough for the
- * sigframe construction.
- */
- if (current->sas_ss_size && sp < current->sas_ss_sp)
- return (void __user __force *)-1UL;
-
return (void __user *)sp;
}
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 19807c4d3805..fae8f610d867 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -13,6 +13,8 @@
#include <linux/kdebug.h>
#include <linux/uaccess.h>
#include <linux/kprobes.h>
+#include <linux/uprobes.h>
+#include <asm/uprobes.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/irq.h>
@@ -247,22 +249,28 @@ static inline unsigned long get_break_insn_length(unsigned long pc)
return GET_INSN_LENGTH(insn);
}
+static bool probe_single_step_handler(struct pt_regs *regs)
+{
+ bool user = user_mode(regs);
+
+ return user ? uprobe_single_step_handler(regs) : kprobe_single_step_handler(regs);
+}
+
+static bool probe_breakpoint_handler(struct pt_regs *regs)
+{
+ bool user = user_mode(regs);
+
+ return user ? uprobe_breakpoint_handler(regs) : kprobe_breakpoint_handler(regs);
+}
+
void handle_break(struct pt_regs *regs)
{
-#ifdef CONFIG_KPROBES
- if (kprobe_single_step_handler(regs))
+ if (probe_single_step_handler(regs))
return;
- if (kprobe_breakpoint_handler(regs))
- return;
-#endif
-#ifdef CONFIG_UPROBES
- if (uprobe_single_step_handler(regs))
+ if (probe_breakpoint_handler(regs))
return;
- if (uprobe_breakpoint_handler(regs))
- return;
-#endif
current->thread.bad_cause = regs->cause;
if (user_mode(regs))
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index 1b7e9fa265cb..b7e0e03c69b1 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -460,8 +460,11 @@ static int riscv_vcpu_get_isa_ext_single(struct kvm_vcpu *vcpu,
reg_num >= ARRAY_SIZE(kvm_isa_ext_arr))
return -ENOENT;
- *reg_val = 0;
host_isa_ext = kvm_isa_ext_arr[reg_num];
+ if (!__riscv_isa_extension_available(NULL, host_isa_ext))
+ return -ENOENT;
+
+ *reg_val = 0;
if (__riscv_isa_extension_available(vcpu->arch.isa, host_isa_ext))
*reg_val = 1; /* Mark the given extension as available */
@@ -842,7 +845,7 @@ static int copy_isa_ext_reg_indices(const struct kvm_vcpu *vcpu,
u64 reg = KVM_REG_RISCV | size | KVM_REG_RISCV_ISA_EXT | i;
isa_ext = kvm_isa_ext_arr[i];
- if (!__riscv_isa_extension_available(vcpu->arch.isa, isa_ext))
+ if (!__riscv_isa_extension_available(NULL, isa_ext))
continue;
if (uindices) {
diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c
index 96225a8533ad..e4a2ace92dbe 100644
--- a/arch/riscv/mm/hugetlbpage.c
+++ b/arch/riscv/mm/hugetlbpage.c
@@ -180,7 +180,8 @@ pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags)
void set_huge_pte_at(struct mm_struct *mm,
unsigned long addr,
pte_t *ptep,
- pte_t pte)
+ pte_t pte,
+ unsigned long sz)
{
int i, pte_num;
diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c
index ecd3ae6f4116..8581693e62d3 100644
--- a/arch/riscv/net/bpf_jit_comp64.c
+++ b/arch/riscv/net/bpf_jit_comp64.c
@@ -245,7 +245,7 @@ static void __build_epilogue(bool is_tail_call, struct rv_jit_context *ctx)
emit_addi(RV_REG_SP, RV_REG_SP, stack_adjust, ctx);
/* Set return value. */
if (!is_tail_call)
- emit_mv(RV_REG_A0, RV_REG_A5, ctx);
+ emit_addiw(RV_REG_A0, RV_REG_A5, 0, ctx);
emit_jalr(RV_REG_ZERO, is_tail_call ? RV_REG_T3 : RV_REG_RA,
is_tail_call ? (RV_FENTRY_NINSNS + 1) * 4 : 0, /* skip reserved nops and TCC init */
ctx);
@@ -759,8 +759,10 @@ static int invoke_bpf_prog(struct bpf_tramp_link *l, int args_off, int retval_of
if (ret)
return ret;
- if (save_ret)
- emit_sd(RV_REG_FP, -retval_off, regmap[BPF_REG_0], ctx);
+ if (save_ret) {
+ emit_sd(RV_REG_FP, -retval_off, RV_REG_A0, ctx);
+ emit_sd(RV_REG_FP, -(retval_off - 8), regmap[BPF_REG_0], ctx);
+ }
/* update branch with beqz */
if (ctx->insns) {
@@ -853,7 +855,7 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
save_ret = flags & (BPF_TRAMP_F_CALL_ORIG | BPF_TRAMP_F_RET_FENTRY_RET);
if (save_ret) {
- stack_size += 8;
+ stack_size += 16; /* Save both A5 (BPF R0) and A0 */
retval_off = stack_size;
}
@@ -957,6 +959,7 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
if (ret)
goto out;
emit_sd(RV_REG_FP, -retval_off, RV_REG_A0, ctx);
+ emit_sd(RV_REG_FP, -(retval_off - 8), regmap[BPF_REG_0], ctx);
im->ip_after_call = ctx->insns + ctx->ninsns;
/* 2 nops reserved for auipc+jalr pair */
emit(rv_nop(), ctx);
@@ -988,8 +991,10 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
if (flags & BPF_TRAMP_F_RESTORE_REGS)
restore_args(nregs, args_off, ctx);
- if (save_ret)
+ if (save_ret) {
emit_ld(RV_REG_A0, -retval_off, RV_REG_FP, ctx);
+ emit_ld(regmap[BPF_REG_0], -(retval_off - 8), RV_REG_FP, ctx);
+ }
emit_ld(RV_REG_S1, -sreg_off, RV_REG_FP, ctx);
@@ -1515,7 +1520,8 @@ out_be:
if (ret)
return ret;
- emit_mv(bpf_to_rv_reg(BPF_REG_0, ctx), RV_REG_A0, ctx);
+ if (insn->src_reg != BPF_PSEUDO_CALL)
+ emit_mv(bpf_to_rv_reg(BPF_REG_0, ctx), RV_REG_A0, ctx);
break;
}
/* tail call */
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-13 18:55:08 +0300