diff mbox series

[v3,06/12] lib: sbi: Add SiFive proprietary xsfcflushdlone

Message ID 20250708074940.10904-7-nick.hu@sifive.com
State Changes Requested
Headers show
Series Add SiFive TMC0 and SMC0 driver | expand

Commit Message

Nick Hu July 8, 2025, 7:49 a.m. UTC 
Using ISA string "xsfcflushdlone" to detect the support of the
SiFive L1D cache flush custom instruction.

Signed-off-by: Nick Hu <nick.hu@sifive.com>
Reviewed-by: Cyan Yang <cyan.yang@sifive.com>
---
 include/sbi/sbi_hart.h | 2 ++
 lib/sbi/sbi_hart.c     | 1 +
 2 files changed, 3 insertions(+)

Comments

Anup Patel Aug. 4, 2025, 8:38 a.m. UTC | #1 
On Tue, Jul 8, 2025 at 1:20 PM Nick Hu <nick.hu@sifive.com> wrote:
>
> Using ISA string "xsfcflushdlone" to detect the support of the
> SiFive L1D cache flush custom instruction.
>
> Signed-off-by: Nick Hu <nick.hu@sifive.com>
> Reviewed-by: Cyan Yang <cyan.yang@sifive.com>
> ---
>  include/sbi/sbi_hart.h | 2 ++
>  lib/sbi/sbi_hart.c     | 1 +
>  2 files changed, 3 insertions(+)
>
> diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h
> index dfbe8e4c..567e0130 100644
> --- a/include/sbi/sbi_hart.h
> +++ b/include/sbi/sbi_hart.h
> @@ -81,6 +81,8 @@ enum sbi_hart_extensions {
>         SBI_HART_EXT_SSCTR,
>         /** HART has Ssstateen extension **/
>         SBI_HART_EXT_SSSTATEEN,
> +       /** Hart has Xsfcflushdlone extension */
> +       SBI_HART_EXT_XSF_CFLUSH_D_L1,

s/SBI_HART_EXT_XSF_CFLUSH_D_L1/SBI_HART_EXT_XSIFIVE_CFLUSH_D_L1/

>
>         /** Maximum index of Hart extension */
>         SBI_HART_EXT_MAX,
> diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
> index 054a405c..e91e1123 100644
> --- a/lib/sbi/sbi_hart.c
> +++ b/lib/sbi/sbi_hart.c
> @@ -715,6 +715,7 @@ const struct sbi_hart_ext_data sbi_hart_ext[] = {
>         __SBI_HART_EXT_DATA(smctr, SBI_HART_EXT_SMCTR),
>         __SBI_HART_EXT_DATA(ssctr, SBI_HART_EXT_SSCTR),
>         __SBI_HART_EXT_DATA(ssstateen, SBI_HART_EXT_SSSTATEEN),
> +       __SBI_HART_EXT_DATA(xsfcflushdlone, SBI_HART_EXT_XSF_CFLUSH_D_L1),
>  };
>
>  _Static_assert(SBI_HART_EXT_MAX == array_size(sbi_hart_ext),
> --
> 2.17.1
>

Regards,
Anup
diff mbox series

Patch

diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h
index dfbe8e4c..567e0130 100644
--- a/include/sbi/sbi_hart.h
+++ b/include/sbi/sbi_hart.h
@@ -81,6 +81,8 @@  enum sbi_hart_extensions {
 	SBI_HART_EXT_SSCTR,
 	/** HART has Ssstateen extension **/
 	SBI_HART_EXT_SSSTATEEN,
+	/** Hart has Xsfcflushdlone extension */
+	SBI_HART_EXT_XSF_CFLUSH_D_L1,
 
 	/** Maximum index of Hart extension */
 	SBI_HART_EXT_MAX,
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index 054a405c..e91e1123 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -715,6 +715,7 @@  const struct sbi_hart_ext_data sbi_hart_ext[] = {
 	__SBI_HART_EXT_DATA(smctr, SBI_HART_EXT_SMCTR),
 	__SBI_HART_EXT_DATA(ssctr, SBI_HART_EXT_SSCTR),
 	__SBI_HART_EXT_DATA(ssstateen, SBI_HART_EXT_SSSTATEEN),
+	__SBI_HART_EXT_DATA(xsfcflushdlone, SBI_HART_EXT_XSF_CFLUSH_D_L1),
 };
 
 _Static_assert(SBI_HART_EXT_MAX == array_size(sbi_hart_ext),