| Message ID | 20240810175744.166503-3-jamestiotio@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | riscv: sbi: Add support to test HSM extension | expand |
On Sun, Aug 11, 2024 at 01:57:43AM GMT, James Raphael Tiovalen wrote: > Add helper functions to perform hart-related operations to prepare for > the HSM tests. Also add the HSM state IDs and default suspend type > constants. > > Signed-off-by: James Raphael Tiovalen <jamestiotio@gmail.com> > --- > lib/riscv/asm/sbi.h | 18 ++++++++++++++++++ > lib/riscv/sbi.c | 15 +++++++++++++++ > 2 files changed, 33 insertions(+) > > diff --git a/lib/riscv/asm/sbi.h b/lib/riscv/asm/sbi.h > index 6b485dd3..5cebc4d9 100644 > --- a/lib/riscv/asm/sbi.h > +++ b/lib/riscv/asm/sbi.h > @@ -47,6 +47,21 @@ enum sbi_ext_ipi_fid { > SBI_EXT_IPI_SEND_IPI = 0, > }; > > +enum sbi_ext_hsm_sid { > + SBI_EXT_HSM_STARTED = 0, > + SBI_EXT_HSM_STOPPED, > + SBI_EXT_HSM_START_PENDING, > + SBI_EXT_HSM_STOP_PENDING, > + SBI_EXT_HSM_SUSPENDED, > + SBI_EXT_HSM_SUSPEND_PENDING, > + SBI_EXT_HSM_RESUME_PENDING, > +}; > + > +enum sbi_ext_hsm_hart_suspend_type { > + SBI_EXT_HSM_HART_SUSPEND_RETENTIVE = 0, > + SBI_EXT_HSM_HART_SUSPEND_NON_RETENTIVE = 0x80000000, > +}; > + > struct sbiret { > long error; > long value; > @@ -59,6 +74,9 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, > > void sbi_shutdown(void); > struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned long sp); > +struct sbiret sbi_hart_stop(void); > +struct sbiret sbi_hart_get_status(unsigned long hartid); > +struct sbiret sbi_hart_suspend(uint32_t suspend_type, unsigned long resume_addr, unsigned long opaque); > long sbi_probe(int ext); > > #endif /* !__ASSEMBLY__ */ > diff --git a/lib/riscv/sbi.c b/lib/riscv/sbi.c > index 3d4236e5..a5c18450 100644 > --- a/lib/riscv/sbi.c > +++ b/lib/riscv/sbi.c > @@ -39,6 +39,21 @@ struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned > return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_START, hartid, entry, sp, 0, 0, 0); > } > > +struct sbiret sbi_hart_stop(void) > +{ > + return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_STOP, 0, 0, 0, 0, 0, 0); > +} > + > +struct sbiret sbi_hart_get_status(unsigned long hartid) > +{ > + return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_STATUS, hartid, 0, 0, 0, 0, 0); > +} > + > +struct sbiret sbi_hart_suspend(uint32_t suspend_type, unsigned long resume_addr, unsigned long opaque) > +{ > + return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_SUSPEND, suspend_type, resume_addr, opaque, 0, 0, 0); > +} Let's put sbi_hart_suspend in riscv/sbi.c for now. I can't think of why that would useful outside of the HSM tests. stop and get-status are good to have in the library though. Thanks, drew > + > long sbi_probe(int ext) > { > struct sbiret ret; > -- > 2.43.0 > > > -- > kvm-riscv mailing list > kvm-riscv@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kvm-riscv
diff --git a/lib/riscv/asm/sbi.h b/lib/riscv/asm/sbi.h index 6b485dd3..5cebc4d9 100644 --- a/lib/riscv/asm/sbi.h +++ b/lib/riscv/asm/sbi.h @@ -47,6 +47,21 @@ enum sbi_ext_ipi_fid { SBI_EXT_IPI_SEND_IPI = 0, }; +enum sbi_ext_hsm_sid { + SBI_EXT_HSM_STARTED = 0, + SBI_EXT_HSM_STOPPED, + SBI_EXT_HSM_START_PENDING, + SBI_EXT_HSM_STOP_PENDING, + SBI_EXT_HSM_SUSPENDED, + SBI_EXT_HSM_SUSPEND_PENDING, + SBI_EXT_HSM_RESUME_PENDING, +}; + +enum sbi_ext_hsm_hart_suspend_type { + SBI_EXT_HSM_HART_SUSPEND_RETENTIVE = 0, + SBI_EXT_HSM_HART_SUSPEND_NON_RETENTIVE = 0x80000000, +}; + struct sbiret { long error; long value; @@ -59,6 +74,9 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, void sbi_shutdown(void); struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned long sp); +struct sbiret sbi_hart_stop(void); +struct sbiret sbi_hart_get_status(unsigned long hartid); +struct sbiret sbi_hart_suspend(uint32_t suspend_type, unsigned long resume_addr, unsigned long opaque); long sbi_probe(int ext); #endif /* !__ASSEMBLY__ */ diff --git a/lib/riscv/sbi.c b/lib/riscv/sbi.c index 3d4236e5..a5c18450 100644 --- a/lib/riscv/sbi.c +++ b/lib/riscv/sbi.c @@ -39,6 +39,21 @@ struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_START, hartid, entry, sp, 0, 0, 0); } +struct sbiret sbi_hart_stop(void) +{ + return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_STOP, 0, 0, 0, 0, 0, 0); +} + +struct sbiret sbi_hart_get_status(unsigned long hartid) +{ + return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_STATUS, hartid, 0, 0, 0, 0, 0); +} + +struct sbiret sbi_hart_suspend(uint32_t suspend_type, unsigned long resume_addr, unsigned long opaque) +{ + return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_SUSPEND, suspend_type, resume_addr, opaque, 0, 0, 0); +} + long sbi_probe(int ext) { struct sbiret ret;
Add helper functions to perform hart-related operations to prepare for the HSM tests. Also add the HSM state IDs and default suspend type constants. Signed-off-by: James Raphael Tiovalen <jamestiotio@gmail.com> --- lib/riscv/asm/sbi.h | 18 ++++++++++++++++++ lib/riscv/sbi.c | 15 +++++++++++++++ 2 files changed, 33 insertions(+)