Commit a21344df authored by Gary Guo's avatar Gary Guo Committed by Palmer Dabbelt

riscv: fix sbi_remote_sfence_vma{,_asid}.

Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments
to SBI at all, which is semantically incorrect.

Neither BBL nor OpenSBI is using these arguments at the moment, and
they just do a global flush instead. However we still need to provide
correct arguments.
Signed-off-by: default avatarGary Guo <gary@garyguo.net>
Reviewed-by: default avatarAnup Patel <anup@brainfault.org>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarPalmer Dabbelt <palmer@sifive.com>
parent f6635f87
......@@ -26,22 +26,27 @@
#define SBI_REMOTE_SFENCE_VMA_ASID 7
#define SBI_SHUTDOWN 8
#define SBI_CALL(which, arg0, arg1, arg2) ({ \
#define SBI_CALL(which, arg0, arg1, arg2, arg3) ({ \
register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0); \
register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1); \
register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2); \
register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3); \
register uintptr_t a7 asm ("a7") = (uintptr_t)(which); \
asm volatile ("ecall" \
: "+r" (a0) \
: "r" (a1), "r" (a2), "r" (a7) \
: "r" (a1), "r" (a2), "r" (a3), "r" (a7) \
: "memory"); \
a0; \
})
/* Lazy implementations until SBI is finalized */
#define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0)
#define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0)
#define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0)
#define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0, 0)
#define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0, 0)
#define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0, 0)
#define SBI_CALL_3(which, arg0, arg1, arg2) \
SBI_CALL(which, arg0, arg1, arg2, 0)
#define SBI_CALL_4(which, arg0, arg1, arg2, arg3) \
SBI_CALL(which, arg0, arg1, arg2, arg3)
static inline void sbi_console_putchar(int ch)
{
......@@ -86,7 +91,7 @@ static inline void sbi_remote_sfence_vma(const unsigned long *hart_mask,
unsigned long start,
unsigned long size)
{
SBI_CALL_1(SBI_REMOTE_SFENCE_VMA, hart_mask);
SBI_CALL_3(SBI_REMOTE_SFENCE_VMA, hart_mask, start, size);
}
static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
......@@ -94,7 +99,7 @@ static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
unsigned long size,
unsigned long asid)
{
SBI_CALL_1(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask);
SBI_CALL_4(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask, start, size, asid);
}
#endif
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment