* [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid}
@ 2020-03-06 8:44 Bin Meng
2020-03-06 8:44 ` [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi() Bin Meng
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Bin Meng @ 2020-03-06 8:44 UTC (permalink / raw)
To: u-boot
Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments
to SBI at all, which is semantically incorrect.
This keeps in sync with Linux kernel commit:
a21344dfc6ad: fix sbi_remote_sfence_vma{,_asid}
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
---
arch/riscv/include/asm/sbi.h | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index ced57de..d5081f9 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -20,22 +20,27 @@
#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)
{
@@ -80,7 +85,7 @@ 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,
@@ -88,7 +93,7 @@ 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
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi()
2020-03-06 8:44 [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
@ 2020-03-06 8:44 ` Bin Meng
2020-03-11 21:54 ` Lukas Auer
2020-03-10 1:53 ` [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
2020-03-11 21:54 ` Lukas Auer
2 siblings, 1 reply; 6+ messages in thread
From: Bin Meng @ 2020-03-06 8:44 UTC (permalink / raw)
To: u-boot
There is no need for S-mode U-Boot to call sbi_clear_ipi() as it
can be cleared directly from S-mode. This saves some cycles.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
---
arch/riscv/lib/sbi_ipi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/lib/sbi_ipi.c b/arch/riscv/lib/sbi_ipi.c
index 9a698ce..abafca9 100644
--- a/arch/riscv/lib/sbi_ipi.c
+++ b/arch/riscv/lib/sbi_ipi.c
@@ -5,6 +5,7 @@
*/
#include <common.h>
+#include <asm/encoding.h>
#include <asm/sbi.h>
int riscv_send_ipi(int hart)
@@ -19,7 +20,7 @@ int riscv_send_ipi(int hart)
int riscv_clear_ipi(int hart)
{
- sbi_clear_ipi();
+ csr_clear(CSR_SIP, SIP_SSIP);
return 0;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid}
2020-03-06 8:44 [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
2020-03-06 8:44 ` [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi() Bin Meng
@ 2020-03-10 1:53 ` Bin Meng
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46E25F8@ATCPCS16.andestech.com>
2020-03-11 21:54 ` Lukas Auer
2 siblings, 1 reply; 6+ messages in thread
From: Bin Meng @ 2020-03-10 1:53 UTC (permalink / raw)
To: u-boot
Hi Rick,
On Fri, Mar 6, 2020 at 4:44 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments
> to SBI at all, which is semantically incorrect.
>
> This keeps in sync with Linux kernel commit:
> a21344dfc6ad: fix sbi_remote_sfence_vma{,_asid}
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> arch/riscv/include/asm/sbi.h | 19 ++++++++++++-------
> 1 file changed, 12 insertions(+), 7 deletions(-)
>
Ping?
I think these 2 patches in this series should be in v2020.04
Regards,
Bin
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid}
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46E25F8@ATCPCS16.andestech.com>
@ 2020-03-10 6:41 ` Rick Chen
0 siblings, 0 replies; 6+ messages in thread
From: Rick Chen @ 2020-03-10 6:41 UTC (permalink / raw)
To: u-boot
Hi Bin
> From: Bin Meng [mailto:bmeng.cn at gmail.com]
> Sent: Tuesday, March 10, 2020 9:54 AM
> To: Lukas Auer; Rick Jian-Zhi Chen(???); U-Boot Mailing List
> Subject: Re: [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid}
>
> Hi Rick,
>
> On Fri, Mar 6, 2020 at 4:44 PM Bin Meng <bmeng.cn@gmail.com> wrote:
> >
> > Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments
> > to SBI at all, which is semantically incorrect.
> >
> > This keeps in sync with Linux kernel commit:
> > a21344dfc6ad: fix sbi_remote_sfence_vma{,_asid}
> >
> > Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> > ---
> >
> > arch/riscv/include/asm/sbi.h | 19 ++++++++++++-------
> > 1 file changed, 12 insertions(+), 7 deletions(-)
> >
>
> Ping?
>
> I think these 2 patches in this series should be in v2020.04
OK, no problem.
I will review and pull it later.
Thanks,
Rick
>
> Regards,
> Bin
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid}
2020-03-06 8:44 [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
2020-03-06 8:44 ` [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi() Bin Meng
2020-03-10 1:53 ` [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
@ 2020-03-11 21:54 ` Lukas Auer
2 siblings, 0 replies; 6+ messages in thread
From: Lukas Auer @ 2020-03-11 21:54 UTC (permalink / raw)
To: u-boot
On Fri, 2020-03-06 at 00:44 -0800, Bin Meng wrote:
> Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments
> to SBI at all, which is semantically incorrect.
>
> This keeps in sync with Linux kernel commit:
> a21344dfc6ad: fix sbi_remote_sfence_vma{,_asid}
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> arch/riscv/include/asm/sbi.h | 19 ++++++++++++-------
> 1 file changed, 12 insertions(+), 7 deletions(-)
>
Reviewed-by: Lukas Auer <lukas@auer.io>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi()
2020-03-06 8:44 ` [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi() Bin Meng
@ 2020-03-11 21:54 ` Lukas Auer
0 siblings, 0 replies; 6+ messages in thread
From: Lukas Auer @ 2020-03-11 21:54 UTC (permalink / raw)
To: u-boot
On Fri, 2020-03-06 at 00:44 -0800, Bin Meng wrote:
> There is no need for S-mode U-Boot to call sbi_clear_ipi() as it
> can be cleared directly from S-mode. This saves some cycles.
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> arch/riscv/lib/sbi_ipi.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
Reviewed-by: Lukas Auer <lukas@auer.io>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-03-11 21:54 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-03-06 8:44 [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
2020-03-06 8:44 ` [PATCH 2/2] riscv: Avoid calling sbi_clear_ipi() Bin Meng
2020-03-11 21:54 ` Lukas Auer
2020-03-10 1:53 ` [PATCH 1/2] riscv: Fix sbi_remote_sfence_vma{,_asid} Bin Meng
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46E25F8@ATCPCS16.andestech.com>
2020-03-10 6:41 ` Rick Chen
2020-03-11 21:54 ` Lukas Auer
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