From: guoren@kernel.org
To: guoren@kernel.org, palmer@dabbelt.com, arnd@arndb.de,
gregkh@linuxfoundation.org, hch@lst.de, nathan@kernel.org,
naresh.kamboju@linaro.org
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
heiko@sntech.de, Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V12 09/20] riscv: compat: Add basic compat data type implementation
Date: Tue, 5 Apr 2022 15:13:03 +0800 [thread overview]
Message-ID: <20220405071314.3225832-10-guoren@kernel.org> (raw)
In-Reply-To: <20220405071314.3225832-1-guoren@kernel.org>
From: Guo Ren <guoren@linux.alibaba.com>
Implement riscv asm/compat.h for struct compat_xxx,
is_compat_task, compat_user_regset, regset convert.
The rv64 compat.h has inherited most of the structs
from the generic one.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
---
arch/riscv/include/asm/compat.h | 129 +++++++++++++++++++++++++++
arch/riscv/include/asm/thread_info.h | 1 +
2 files changed, 130 insertions(+)
create mode 100644 arch/riscv/include/asm/compat.h
diff --git a/arch/riscv/include/asm/compat.h b/arch/riscv/include/asm/compat.h
new file mode 100644
index 000000000000..2ac955b51148
--- /dev/null
+++ b/arch/riscv/include/asm/compat.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_COMPAT_H
+#define __ASM_COMPAT_H
+
+#define COMPAT_UTS_MACHINE "riscv\0\0"
+
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <asm-generic/compat.h>
+
+static inline int is_compat_task(void)
+{
+ return test_thread_flag(TIF_32BIT);
+}
+
+struct compat_user_regs_struct {
+ compat_ulong_t pc;
+ compat_ulong_t ra;
+ compat_ulong_t sp;
+ compat_ulong_t gp;
+ compat_ulong_t tp;
+ compat_ulong_t t0;
+ compat_ulong_t t1;
+ compat_ulong_t t2;
+ compat_ulong_t s0;
+ compat_ulong_t s1;
+ compat_ulong_t a0;
+ compat_ulong_t a1;
+ compat_ulong_t a2;
+ compat_ulong_t a3;
+ compat_ulong_t a4;
+ compat_ulong_t a5;
+ compat_ulong_t a6;
+ compat_ulong_t a7;
+ compat_ulong_t s2;
+ compat_ulong_t s3;
+ compat_ulong_t s4;
+ compat_ulong_t s5;
+ compat_ulong_t s6;
+ compat_ulong_t s7;
+ compat_ulong_t s8;
+ compat_ulong_t s9;
+ compat_ulong_t s10;
+ compat_ulong_t s11;
+ compat_ulong_t t3;
+ compat_ulong_t t4;
+ compat_ulong_t t5;
+ compat_ulong_t t6;
+};
+
+static inline void regs_to_cregs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ cregs->pc = (compat_ulong_t) regs->epc;
+ cregs->ra = (compat_ulong_t) regs->ra;
+ cregs->sp = (compat_ulong_t) regs->sp;
+ cregs->gp = (compat_ulong_t) regs->gp;
+ cregs->tp = (compat_ulong_t) regs->tp;
+ cregs->t0 = (compat_ulong_t) regs->t0;
+ cregs->t1 = (compat_ulong_t) regs->t1;
+ cregs->t2 = (compat_ulong_t) regs->t2;
+ cregs->s0 = (compat_ulong_t) regs->s0;
+ cregs->s1 = (compat_ulong_t) regs->s1;
+ cregs->a0 = (compat_ulong_t) regs->a0;
+ cregs->a1 = (compat_ulong_t) regs->a1;
+ cregs->a2 = (compat_ulong_t) regs->a2;
+ cregs->a3 = (compat_ulong_t) regs->a3;
+ cregs->a4 = (compat_ulong_t) regs->a4;
+ cregs->a5 = (compat_ulong_t) regs->a5;
+ cregs->a6 = (compat_ulong_t) regs->a6;
+ cregs->a7 = (compat_ulong_t) regs->a7;
+ cregs->s2 = (compat_ulong_t) regs->s2;
+ cregs->s3 = (compat_ulong_t) regs->s3;
+ cregs->s4 = (compat_ulong_t) regs->s4;
+ cregs->s5 = (compat_ulong_t) regs->s5;
+ cregs->s6 = (compat_ulong_t) regs->s6;
+ cregs->s7 = (compat_ulong_t) regs->s7;
+ cregs->s8 = (compat_ulong_t) regs->s8;
+ cregs->s9 = (compat_ulong_t) regs->s9;
+ cregs->s10 = (compat_ulong_t) regs->s10;
+ cregs->s11 = (compat_ulong_t) regs->s11;
+ cregs->t3 = (compat_ulong_t) regs->t3;
+ cregs->t4 = (compat_ulong_t) regs->t4;
+ cregs->t5 = (compat_ulong_t) regs->t5;
+ cregs->t6 = (compat_ulong_t) regs->t6;
+};
+
+static inline void cregs_to_regs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ regs->epc = (unsigned long) cregs->pc;
+ regs->ra = (unsigned long) cregs->ra;
+ regs->sp = (unsigned long) cregs->sp;
+ regs->gp = (unsigned long) cregs->gp;
+ regs->tp = (unsigned long) cregs->tp;
+ regs->t0 = (unsigned long) cregs->t0;
+ regs->t1 = (unsigned long) cregs->t1;
+ regs->t2 = (unsigned long) cregs->t2;
+ regs->s0 = (unsigned long) cregs->s0;
+ regs->s1 = (unsigned long) cregs->s1;
+ regs->a0 = (unsigned long) cregs->a0;
+ regs->a1 = (unsigned long) cregs->a1;
+ regs->a2 = (unsigned long) cregs->a2;
+ regs->a3 = (unsigned long) cregs->a3;
+ regs->a4 = (unsigned long) cregs->a4;
+ regs->a5 = (unsigned long) cregs->a5;
+ regs->a6 = (unsigned long) cregs->a6;
+ regs->a7 = (unsigned long) cregs->a7;
+ regs->s2 = (unsigned long) cregs->s2;
+ regs->s3 = (unsigned long) cregs->s3;
+ regs->s4 = (unsigned long) cregs->s4;
+ regs->s5 = (unsigned long) cregs->s5;
+ regs->s6 = (unsigned long) cregs->s6;
+ regs->s7 = (unsigned long) cregs->s7;
+ regs->s8 = (unsigned long) cregs->s8;
+ regs->s9 = (unsigned long) cregs->s9;
+ regs->s10 = (unsigned long) cregs->s10;
+ regs->s11 = (unsigned long) cregs->s11;
+ regs->t3 = (unsigned long) cregs->t3;
+ regs->t4 = (unsigned long) cregs->t4;
+ regs->t5 = (unsigned long) cregs->t5;
+ regs->t6 = (unsigned long) cregs->t6;
+};
+
+#endif /* __ASM_COMPAT_H */
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 74d888c8d631..78933ac04995 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -97,6 +97,7 @@ struct thread_info {
#define TIF_SECCOMP 8 /* syscall secure computing */
#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
#define TIF_UPROBE 10 /* uprobe breakpoint or singlestep */
+#define TIF_32BIT 11 /* compat-mode 32bit process */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: guoren@kernel.org
To: guoren@kernel.org, palmer@dabbelt.com, arnd@arndb.de,
gregkh@linuxfoundation.org, hch@lst.de, nathan@kernel.org,
naresh.kamboju@linaro.org
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
heiko@sntech.de, Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V12 09/20] riscv: compat: Add basic compat data type implementation
Date: Tue, 5 Apr 2022 15:13:03 +0800 [thread overview]
Message-ID: <20220405071314.3225832-10-guoren@kernel.org> (raw)
In-Reply-To: <20220405071314.3225832-1-guoren@kernel.org>
From: Guo Ren <guoren@linux.alibaba.com>
Implement riscv asm/compat.h for struct compat_xxx,
is_compat_task, compat_user_regset, regset convert.
The rv64 compat.h has inherited most of the structs
from the generic one.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
---
arch/riscv/include/asm/compat.h | 129 +++++++++++++++++++++++++++
arch/riscv/include/asm/thread_info.h | 1 +
2 files changed, 130 insertions(+)
create mode 100644 arch/riscv/include/asm/compat.h
diff --git a/arch/riscv/include/asm/compat.h b/arch/riscv/include/asm/compat.h
new file mode 100644
index 000000000000..2ac955b51148
--- /dev/null
+++ b/arch/riscv/include/asm/compat.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_COMPAT_H
+#define __ASM_COMPAT_H
+
+#define COMPAT_UTS_MACHINE "riscv\0\0"
+
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <asm-generic/compat.h>
+
+static inline int is_compat_task(void)
+{
+ return test_thread_flag(TIF_32BIT);
+}
+
+struct compat_user_regs_struct {
+ compat_ulong_t pc;
+ compat_ulong_t ra;
+ compat_ulong_t sp;
+ compat_ulong_t gp;
+ compat_ulong_t tp;
+ compat_ulong_t t0;
+ compat_ulong_t t1;
+ compat_ulong_t t2;
+ compat_ulong_t s0;
+ compat_ulong_t s1;
+ compat_ulong_t a0;
+ compat_ulong_t a1;
+ compat_ulong_t a2;
+ compat_ulong_t a3;
+ compat_ulong_t a4;
+ compat_ulong_t a5;
+ compat_ulong_t a6;
+ compat_ulong_t a7;
+ compat_ulong_t s2;
+ compat_ulong_t s3;
+ compat_ulong_t s4;
+ compat_ulong_t s5;
+ compat_ulong_t s6;
+ compat_ulong_t s7;
+ compat_ulong_t s8;
+ compat_ulong_t s9;
+ compat_ulong_t s10;
+ compat_ulong_t s11;
+ compat_ulong_t t3;
+ compat_ulong_t t4;
+ compat_ulong_t t5;
+ compat_ulong_t t6;
+};
+
+static inline void regs_to_cregs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ cregs->pc = (compat_ulong_t) regs->epc;
+ cregs->ra = (compat_ulong_t) regs->ra;
+ cregs->sp = (compat_ulong_t) regs->sp;
+ cregs->gp = (compat_ulong_t) regs->gp;
+ cregs->tp = (compat_ulong_t) regs->tp;
+ cregs->t0 = (compat_ulong_t) regs->t0;
+ cregs->t1 = (compat_ulong_t) regs->t1;
+ cregs->t2 = (compat_ulong_t) regs->t2;
+ cregs->s0 = (compat_ulong_t) regs->s0;
+ cregs->s1 = (compat_ulong_t) regs->s1;
+ cregs->a0 = (compat_ulong_t) regs->a0;
+ cregs->a1 = (compat_ulong_t) regs->a1;
+ cregs->a2 = (compat_ulong_t) regs->a2;
+ cregs->a3 = (compat_ulong_t) regs->a3;
+ cregs->a4 = (compat_ulong_t) regs->a4;
+ cregs->a5 = (compat_ulong_t) regs->a5;
+ cregs->a6 = (compat_ulong_t) regs->a6;
+ cregs->a7 = (compat_ulong_t) regs->a7;
+ cregs->s2 = (compat_ulong_t) regs->s2;
+ cregs->s3 = (compat_ulong_t) regs->s3;
+ cregs->s4 = (compat_ulong_t) regs->s4;
+ cregs->s5 = (compat_ulong_t) regs->s5;
+ cregs->s6 = (compat_ulong_t) regs->s6;
+ cregs->s7 = (compat_ulong_t) regs->s7;
+ cregs->s8 = (compat_ulong_t) regs->s8;
+ cregs->s9 = (compat_ulong_t) regs->s9;
+ cregs->s10 = (compat_ulong_t) regs->s10;
+ cregs->s11 = (compat_ulong_t) regs->s11;
+ cregs->t3 = (compat_ulong_t) regs->t3;
+ cregs->t4 = (compat_ulong_t) regs->t4;
+ cregs->t5 = (compat_ulong_t) regs->t5;
+ cregs->t6 = (compat_ulong_t) regs->t6;
+};
+
+static inline void cregs_to_regs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ regs->epc = (unsigned long) cregs->pc;
+ regs->ra = (unsigned long) cregs->ra;
+ regs->sp = (unsigned long) cregs->sp;
+ regs->gp = (unsigned long) cregs->gp;
+ regs->tp = (unsigned long) cregs->tp;
+ regs->t0 = (unsigned long) cregs->t0;
+ regs->t1 = (unsigned long) cregs->t1;
+ regs->t2 = (unsigned long) cregs->t2;
+ regs->s0 = (unsigned long) cregs->s0;
+ regs->s1 = (unsigned long) cregs->s1;
+ regs->a0 = (unsigned long) cregs->a0;
+ regs->a1 = (unsigned long) cregs->a1;
+ regs->a2 = (unsigned long) cregs->a2;
+ regs->a3 = (unsigned long) cregs->a3;
+ regs->a4 = (unsigned long) cregs->a4;
+ regs->a5 = (unsigned long) cregs->a5;
+ regs->a6 = (unsigned long) cregs->a6;
+ regs->a7 = (unsigned long) cregs->a7;
+ regs->s2 = (unsigned long) cregs->s2;
+ regs->s3 = (unsigned long) cregs->s3;
+ regs->s4 = (unsigned long) cregs->s4;
+ regs->s5 = (unsigned long) cregs->s5;
+ regs->s6 = (unsigned long) cregs->s6;
+ regs->s7 = (unsigned long) cregs->s7;
+ regs->s8 = (unsigned long) cregs->s8;
+ regs->s9 = (unsigned long) cregs->s9;
+ regs->s10 = (unsigned long) cregs->s10;
+ regs->s11 = (unsigned long) cregs->s11;
+ regs->t3 = (unsigned long) cregs->t3;
+ regs->t4 = (unsigned long) cregs->t4;
+ regs->t5 = (unsigned long) cregs->t5;
+ regs->t6 = (unsigned long) cregs->t6;
+};
+
+#endif /* __ASM_COMPAT_H */
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 74d888c8d631..78933ac04995 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -97,6 +97,7 @@ struct thread_info {
#define TIF_SECCOMP 8 /* syscall secure computing */
#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
#define TIF_UPROBE 10 /* uprobe breakpoint or singlestep */
+#define TIF_32BIT 11 /* compat-mode 32bit process */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
--
2.25.1
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: guoren@kernel.org
To: guoren@kernel.org, palmer@dabbelt.com, arnd@arndb.de,
gregkh@linuxfoundation.org, hch@lst.de, nathan@kernel.org,
naresh.kamboju@linaro.org
Cc: linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
Guo Ren <guoren@linux.alibaba.com>,
heiko@sntech.de, linux-parisc@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org,
sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH V12 09/20] riscv: compat: Add basic compat data type implementation
Date: Tue, 5 Apr 2022 15:13:03 +0800 [thread overview]
Message-ID: <20220405071314.3225832-10-guoren@kernel.org> (raw)
In-Reply-To: <20220405071314.3225832-1-guoren@kernel.org>
From: Guo Ren <guoren@linux.alibaba.com>
Implement riscv asm/compat.h for struct compat_xxx,
is_compat_task, compat_user_regset, regset convert.
The rv64 compat.h has inherited most of the structs
from the generic one.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
---
arch/riscv/include/asm/compat.h | 129 +++++++++++++++++++++++++++
arch/riscv/include/asm/thread_info.h | 1 +
2 files changed, 130 insertions(+)
create mode 100644 arch/riscv/include/asm/compat.h
diff --git a/arch/riscv/include/asm/compat.h b/arch/riscv/include/asm/compat.h
new file mode 100644
index 000000000000..2ac955b51148
--- /dev/null
+++ b/arch/riscv/include/asm/compat.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_COMPAT_H
+#define __ASM_COMPAT_H
+
+#define COMPAT_UTS_MACHINE "riscv\0\0"
+
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <asm-generic/compat.h>
+
+static inline int is_compat_task(void)
+{
+ return test_thread_flag(TIF_32BIT);
+}
+
+struct compat_user_regs_struct {
+ compat_ulong_t pc;
+ compat_ulong_t ra;
+ compat_ulong_t sp;
+ compat_ulong_t gp;
+ compat_ulong_t tp;
+ compat_ulong_t t0;
+ compat_ulong_t t1;
+ compat_ulong_t t2;
+ compat_ulong_t s0;
+ compat_ulong_t s1;
+ compat_ulong_t a0;
+ compat_ulong_t a1;
+ compat_ulong_t a2;
+ compat_ulong_t a3;
+ compat_ulong_t a4;
+ compat_ulong_t a5;
+ compat_ulong_t a6;
+ compat_ulong_t a7;
+ compat_ulong_t s2;
+ compat_ulong_t s3;
+ compat_ulong_t s4;
+ compat_ulong_t s5;
+ compat_ulong_t s6;
+ compat_ulong_t s7;
+ compat_ulong_t s8;
+ compat_ulong_t s9;
+ compat_ulong_t s10;
+ compat_ulong_t s11;
+ compat_ulong_t t3;
+ compat_ulong_t t4;
+ compat_ulong_t t5;
+ compat_ulong_t t6;
+};
+
+static inline void regs_to_cregs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ cregs->pc = (compat_ulong_t) regs->epc;
+ cregs->ra = (compat_ulong_t) regs->ra;
+ cregs->sp = (compat_ulong_t) regs->sp;
+ cregs->gp = (compat_ulong_t) regs->gp;
+ cregs->tp = (compat_ulong_t) regs->tp;
+ cregs->t0 = (compat_ulong_t) regs->t0;
+ cregs->t1 = (compat_ulong_t) regs->t1;
+ cregs->t2 = (compat_ulong_t) regs->t2;
+ cregs->s0 = (compat_ulong_t) regs->s0;
+ cregs->s1 = (compat_ulong_t) regs->s1;
+ cregs->a0 = (compat_ulong_t) regs->a0;
+ cregs->a1 = (compat_ulong_t) regs->a1;
+ cregs->a2 = (compat_ulong_t) regs->a2;
+ cregs->a3 = (compat_ulong_t) regs->a3;
+ cregs->a4 = (compat_ulong_t) regs->a4;
+ cregs->a5 = (compat_ulong_t) regs->a5;
+ cregs->a6 = (compat_ulong_t) regs->a6;
+ cregs->a7 = (compat_ulong_t) regs->a7;
+ cregs->s2 = (compat_ulong_t) regs->s2;
+ cregs->s3 = (compat_ulong_t) regs->s3;
+ cregs->s4 = (compat_ulong_t) regs->s4;
+ cregs->s5 = (compat_ulong_t) regs->s5;
+ cregs->s6 = (compat_ulong_t) regs->s6;
+ cregs->s7 = (compat_ulong_t) regs->s7;
+ cregs->s8 = (compat_ulong_t) regs->s8;
+ cregs->s9 = (compat_ulong_t) regs->s9;
+ cregs->s10 = (compat_ulong_t) regs->s10;
+ cregs->s11 = (compat_ulong_t) regs->s11;
+ cregs->t3 = (compat_ulong_t) regs->t3;
+ cregs->t4 = (compat_ulong_t) regs->t4;
+ cregs->t5 = (compat_ulong_t) regs->t5;
+ cregs->t6 = (compat_ulong_t) regs->t6;
+};
+
+static inline void cregs_to_regs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ regs->epc = (unsigned long) cregs->pc;
+ regs->ra = (unsigned long) cregs->ra;
+ regs->sp = (unsigned long) cregs->sp;
+ regs->gp = (unsigned long) cregs->gp;
+ regs->tp = (unsigned long) cregs->tp;
+ regs->t0 = (unsigned long) cregs->t0;
+ regs->t1 = (unsigned long) cregs->t1;
+ regs->t2 = (unsigned long) cregs->t2;
+ regs->s0 = (unsigned long) cregs->s0;
+ regs->s1 = (unsigned long) cregs->s1;
+ regs->a0 = (unsigned long) cregs->a0;
+ regs->a1 = (unsigned long) cregs->a1;
+ regs->a2 = (unsigned long) cregs->a2;
+ regs->a3 = (unsigned long) cregs->a3;
+ regs->a4 = (unsigned long) cregs->a4;
+ regs->a5 = (unsigned long) cregs->a5;
+ regs->a6 = (unsigned long) cregs->a6;
+ regs->a7 = (unsigned long) cregs->a7;
+ regs->s2 = (unsigned long) cregs->s2;
+ regs->s3 = (unsigned long) cregs->s3;
+ regs->s4 = (unsigned long) cregs->s4;
+ regs->s5 = (unsigned long) cregs->s5;
+ regs->s6 = (unsigned long) cregs->s6;
+ regs->s7 = (unsigned long) cregs->s7;
+ regs->s8 = (unsigned long) cregs->s8;
+ regs->s9 = (unsigned long) cregs->s9;
+ regs->s10 = (unsigned long) cregs->s10;
+ regs->s11 = (unsigned long) cregs->s11;
+ regs->t3 = (unsigned long) cregs->t3;
+ regs->t4 = (unsigned long) cregs->t4;
+ regs->t5 = (unsigned long) cregs->t5;
+ regs->t6 = (unsigned long) cregs->t6;
+};
+
+#endif /* __ASM_COMPAT_H */
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 74d888c8d631..78933ac04995 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -97,6 +97,7 @@ struct thread_info {
#define TIF_SECCOMP 8 /* syscall secure computing */
#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
#define TIF_UPROBE 10 /* uprobe breakpoint or singlestep */
+#define TIF_32BIT 11 /* compat-mode 32bit process */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: guoren@kernel.org
To: guoren@kernel.org, palmer@dabbelt.com, arnd@arndb.de,
gregkh@linuxfoundation.org, hch@lst.de, nathan@kernel.org,
naresh.kamboju@linaro.org
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
heiko@sntech.de, Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V12 09/20] riscv: compat: Add basic compat data type implementation
Date: Tue, 5 Apr 2022 15:13:03 +0800 [thread overview]
Message-ID: <20220405071314.3225832-10-guoren@kernel.org> (raw)
In-Reply-To: <20220405071314.3225832-1-guoren@kernel.org>
From: Guo Ren <guoren@linux.alibaba.com>
Implement riscv asm/compat.h for struct compat_xxx,
is_compat_task, compat_user_regset, regset convert.
The rv64 compat.h has inherited most of the structs
from the generic one.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
---
arch/riscv/include/asm/compat.h | 129 +++++++++++++++++++++++++++
arch/riscv/include/asm/thread_info.h | 1 +
2 files changed, 130 insertions(+)
create mode 100644 arch/riscv/include/asm/compat.h
diff --git a/arch/riscv/include/asm/compat.h b/arch/riscv/include/asm/compat.h
new file mode 100644
index 000000000000..2ac955b51148
--- /dev/null
+++ b/arch/riscv/include/asm/compat.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_COMPAT_H
+#define __ASM_COMPAT_H
+
+#define COMPAT_UTS_MACHINE "riscv\0\0"
+
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <asm-generic/compat.h>
+
+static inline int is_compat_task(void)
+{
+ return test_thread_flag(TIF_32BIT);
+}
+
+struct compat_user_regs_struct {
+ compat_ulong_t pc;
+ compat_ulong_t ra;
+ compat_ulong_t sp;
+ compat_ulong_t gp;
+ compat_ulong_t tp;
+ compat_ulong_t t0;
+ compat_ulong_t t1;
+ compat_ulong_t t2;
+ compat_ulong_t s0;
+ compat_ulong_t s1;
+ compat_ulong_t a0;
+ compat_ulong_t a1;
+ compat_ulong_t a2;
+ compat_ulong_t a3;
+ compat_ulong_t a4;
+ compat_ulong_t a5;
+ compat_ulong_t a6;
+ compat_ulong_t a7;
+ compat_ulong_t s2;
+ compat_ulong_t s3;
+ compat_ulong_t s4;
+ compat_ulong_t s5;
+ compat_ulong_t s6;
+ compat_ulong_t s7;
+ compat_ulong_t s8;
+ compat_ulong_t s9;
+ compat_ulong_t s10;
+ compat_ulong_t s11;
+ compat_ulong_t t3;
+ compat_ulong_t t4;
+ compat_ulong_t t5;
+ compat_ulong_t t6;
+};
+
+static inline void regs_to_cregs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ cregs->pc = (compat_ulong_t) regs->epc;
+ cregs->ra = (compat_ulong_t) regs->ra;
+ cregs->sp = (compat_ulong_t) regs->sp;
+ cregs->gp = (compat_ulong_t) regs->gp;
+ cregs->tp = (compat_ulong_t) regs->tp;
+ cregs->t0 = (compat_ulong_t) regs->t0;
+ cregs->t1 = (compat_ulong_t) regs->t1;
+ cregs->t2 = (compat_ulong_t) regs->t2;
+ cregs->s0 = (compat_ulong_t) regs->s0;
+ cregs->s1 = (compat_ulong_t) regs->s1;
+ cregs->a0 = (compat_ulong_t) regs->a0;
+ cregs->a1 = (compat_ulong_t) regs->a1;
+ cregs->a2 = (compat_ulong_t) regs->a2;
+ cregs->a3 = (compat_ulong_t) regs->a3;
+ cregs->a4 = (compat_ulong_t) regs->a4;
+ cregs->a5 = (compat_ulong_t) regs->a5;
+ cregs->a6 = (compat_ulong_t) regs->a6;
+ cregs->a7 = (compat_ulong_t) regs->a7;
+ cregs->s2 = (compat_ulong_t) regs->s2;
+ cregs->s3 = (compat_ulong_t) regs->s3;
+ cregs->s4 = (compat_ulong_t) regs->s4;
+ cregs->s5 = (compat_ulong_t) regs->s5;
+ cregs->s6 = (compat_ulong_t) regs->s6;
+ cregs->s7 = (compat_ulong_t) regs->s7;
+ cregs->s8 = (compat_ulong_t) regs->s8;
+ cregs->s9 = (compat_ulong_t) regs->s9;
+ cregs->s10 = (compat_ulong_t) regs->s10;
+ cregs->s11 = (compat_ulong_t) regs->s11;
+ cregs->t3 = (compat_ulong_t) regs->t3;
+ cregs->t4 = (compat_ulong_t) regs->t4;
+ cregs->t5 = (compat_ulong_t) regs->t5;
+ cregs->t6 = (compat_ulong_t) regs->t6;
+};
+
+static inline void cregs_to_regs(struct compat_user_regs_struct *cregs,
+ struct pt_regs *regs)
+{
+ regs->epc = (unsigned long) cregs->pc;
+ regs->ra = (unsigned long) cregs->ra;
+ regs->sp = (unsigned long) cregs->sp;
+ regs->gp = (unsigned long) cregs->gp;
+ regs->tp = (unsigned long) cregs->tp;
+ regs->t0 = (unsigned long) cregs->t0;
+ regs->t1 = (unsigned long) cregs->t1;
+ regs->t2 = (unsigned long) cregs->t2;
+ regs->s0 = (unsigned long) cregs->s0;
+ regs->s1 = (unsigned long) cregs->s1;
+ regs->a0 = (unsigned long) cregs->a0;
+ regs->a1 = (unsigned long) cregs->a1;
+ regs->a2 = (unsigned long) cregs->a2;
+ regs->a3 = (unsigned long) cregs->a3;
+ regs->a4 = (unsigned long) cregs->a4;
+ regs->a5 = (unsigned long) cregs->a5;
+ regs->a6 = (unsigned long) cregs->a6;
+ regs->a7 = (unsigned long) cregs->a7;
+ regs->s2 = (unsigned long) cregs->s2;
+ regs->s3 = (unsigned long) cregs->s3;
+ regs->s4 = (unsigned long) cregs->s4;
+ regs->s5 = (unsigned long) cregs->s5;
+ regs->s6 = (unsigned long) cregs->s6;
+ regs->s7 = (unsigned long) cregs->s7;
+ regs->s8 = (unsigned long) cregs->s8;
+ regs->s9 = (unsigned long) cregs->s9;
+ regs->s10 = (unsigned long) cregs->s10;
+ regs->s11 = (unsigned long) cregs->s11;
+ regs->t3 = (unsigned long) cregs->t3;
+ regs->t4 = (unsigned long) cregs->t4;
+ regs->t5 = (unsigned long) cregs->t5;
+ regs->t6 = (unsigned long) cregs->t6;
+};
+
+#endif /* __ASM_COMPAT_H */
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 74d888c8d631..78933ac04995 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -97,6 +97,7 @@ struct thread_info {
#define TIF_SECCOMP 8 /* syscall secure computing */
#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
#define TIF_UPROBE 10 /* uprobe breakpoint or singlestep */
+#define TIF_32BIT 11 /* compat-mode 32bit process */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
--
2.25.1
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next prev parent reply other threads:[~2022-04-05 7:15 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-05 7:12 [PATCH V12 00/20] riscv: Add COMPAT mode support for 64BIT guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` [PATCH V12 01/20] uapi: simplify __ARCH_FLOCK{,64}_PAD a little guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-07-15 3:13 ` Florian Fainelli
2022-07-15 3:13 ` Florian Fainelli
2022-07-15 3:13 ` Florian Fainelli
2022-07-15 3:13 ` Florian Fainelli
2022-04-05 7:12 ` [PATCH V12 02/20] uapi: always define F_GETLK64/F_SETLK64/F_SETLKW64 in fcntl.h guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-06-08 9:41 ` Eugene Syromiatnikov
2022-06-08 9:41 ` Eugene Syromiatnikov
2022-06-08 9:41 ` Eugene Syromiatnikov
2022-06-08 9:41 ` Eugene Syromiatnikov
2022-06-13 1:15 ` Guo Ren
2022-06-13 1:15 ` Guo Ren
2022-06-13 1:15 ` Guo Ren
2022-06-13 1:15 ` Guo Ren
2022-04-05 7:12 ` [PATCH V12 03/20] compat: consolidate the compat_flock{, 64} definition guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` [PATCH V12 03/20] compat: consolidate the compat_flock{,64} definition guoren
2022-04-05 7:12 ` [PATCH V12 04/20] arch: Add SYSVIPC_COMPAT for all architectures guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` [PATCH V12 05/20] fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:12 ` guoren
2022-04-05 7:13 ` [PATCH V12 06/20] asm-generic: compat: Cleanup duplicate definitions guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 07/20] syscalls: compat: Fix the missing part for __SYSCALL_COMPAT guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 08/20] riscv: Fixup difference with defconfig guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren [this message]
2022-04-05 7:13 ` [PATCH V12 09/20] riscv: compat: Add basic compat data type implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 10/20] riscv: compat: Support TASK_SIZE for compat mode guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 11/20] riscv: compat: syscall: Add compat_sys_call_table implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 12/20] riscv: compat: syscall: Add entry.S implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 13/20] riscv: compat: process: Add UXL_32 support in start_thread guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 14/20] riscv: compat: Add elf.h implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 15/20] riscv: compat: Add hw capability check for elf guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 16/20] riscv: compat: vdso: Add COMPAT_VDSO base code implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 17/20] riscv: compat: vdso: Add setup additional pages implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 18/20] riscv: compat: signal: Add rt_frame implementation guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 19/20] riscv: compat: ptrace: Add compat_arch_ptrace implement guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` [PATCH V12 20/20] riscv: compat: Add COMPAT Kbuild skeletal support guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-05 7:13 ` guoren
2022-04-28 12:25 ` [PATCH V12 00/20] riscv: Add COMPAT mode support for 64BIT Guo Ren
2022-04-28 12:25 ` Guo Ren
2022-04-28 12:25 ` Guo Ren
2022-04-28 12:25 ` Guo Ren
2022-04-28 18:22 ` Palmer Dabbelt
2022-04-28 18:22 ` Palmer Dabbelt
2022-04-28 18:22 ` Palmer Dabbelt
2022-04-28 18:22 ` Palmer Dabbelt
2022-04-30 5:43 ` Guo Ren
2022-04-30 5:43 ` Guo Ren
2022-04-30 5:43 ` Guo Ren
2022-04-30 5:43 ` Guo Ren
2022-05-19 17:50 ` Palmer Dabbelt
2022-05-19 17:50 ` Palmer Dabbelt
2022-05-19 17:50 ` Palmer Dabbelt
2022-05-19 17:50 ` Palmer Dabbelt
2022-05-20 18:18 ` Guo Ren
2022-05-20 18:18 ` Guo Ren
2022-05-20 18:18 ` Guo Ren
2022-05-20 18:18 ` Guo Ren
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