Unverified Commit 506ed3ba authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!1786 LoongArch: export lsx/lasx related struct to user space 

Merge Pull Request from: @Hongchen_Zhang 
 
    To keep consistent with upstream uapi headers,we expoort lsx/lasx
    related struct to user space.
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1786

 

Reviewed-by: default avatarLi Xuefeng <lixuefeng@loongson.cn>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents bc5da35b 8610af34

arch/loongarch/include/uapi/asm/ptrace.h

+10 −0
Original line number Diff line number Diff line
@@ -46,6 +46,16 @@ struct user_fp_state { 
	uint32_t    fcsr;

};



struct user_lsx_state {

	/* 32 registers, 128 bits width per register. */

	uint64_t vregs[32*2];

};



struct user_lasx_state {

	/* 32 registers, 256 bits width per register. */

	uint64_t vregs[32*4];

};



#define PTRACE_SYSEMU			0x1f

#define PTRACE_SYSEMU_SINGLESTEP	0x20

arch/loongarch/include/uapi/asm/sigcontext.h

+18 −0
Original line number Diff line number Diff line
@@ -41,4 +41,22 @@ struct fpu_context { 
	__u32	fcsr;

};



/* LSX context */

#define LSX_CTX_MAGIC		0x53580001

#define LSX_CTX_ALIGN		16

struct lsx_context {

	__u64	regs[2*32];

	__u64	fcc;

	__u32	fcsr;

};



/* LASX context */

#define LASX_CTX_MAGIC		0x41535801

#define LASX_CTX_ALIGN		32

struct lasx_context {

	__u64	regs[4*32];

	__u64	fcc;

	__u32	fcsr;

};



#endif /* _UAPI_ASM_SIGCONTEXT_H */

arch/loongarch/kernel/signal.c

+0 −18
Original line number Diff line number Diff line
@@ -80,24 +80,6 @@ struct extctx_layout { 
	struct _ctx_layout end;

};



/* LSX context */

#define LSX_CTX_MAGIC		0x53580001

#define LSX_CTX_ALIGN		16

struct lsx_context {

	__u64	regs[2*32];

	__u64	fcc;

	__u32	fcsr;

};



/* LASX context */

#define LASX_CTX_MAGIC		0x41535801

#define LASX_CTX_ALIGN		32

struct lasx_context {

	__u64	regs[4*32];

	__u64	fcc;

	__u32	fcsr;

};



static void __user *get_ctx_through_ctxinfo(struct sctx_info *info)

{

	return (void __user *)((char *)info + sizeof(struct sctx_info));