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riscv: Move all SMP related SBI calls to SBI_v01

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SMP support for S-mode U-Boot is enabled only if SBI_V01 is enabled.
There is no point in supporting SMP related (IPI and fences) SBI calls
when SBI_V02 is enabled.

Modify all the SMP related SBI calls to be defined only for SBI_V01.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Atish Patra 2020-04-21 14:51:57 -07:00 • committed by Andes
parent 8c48bb21bd
commit 7e249bc13a
2 changed files with 20 additions and 22 deletions
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5
arch/riscv/include/asm/sbi.h
View file

@ -106,8 +106,6 @@ void sbi_console_putchar(int ch);
int sbi_console_getchar(void); int sbi_console_getchar(void);
void sbi_clear_ipi(void); void sbi_clear_ipi(void);
void sbi_shutdown(void); void sbi_shutdown(void);
#endif
void sbi_set_timer(uint64_t stime_value);
void sbi_send_ipi(const unsigned long *hart_mask); void sbi_send_ipi(const unsigned long *hart_mask);
void sbi_remote_fence_i(const unsigned long *hart_mask); void sbi_remote_fence_i(const unsigned long *hart_mask);
void sbi_remote_sfence_vma(const unsigned long *hart_mask, void sbi_remote_sfence_vma(const unsigned long *hart_mask,
@ -117,7 +115,8 @@ void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
unsigned long start, unsigned long start,
unsigned long size, unsigned long size,
unsigned long asid); unsigned long asid);
#endif
void sbi_set_timer(uint64_t stime_value);
int sbi_probe_extension(int ext); int sbi_probe_extension(int ext);
#endif #endif

37
arch/riscv/lib/sbi.c
View file

@ -39,6 +39,23 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
return ret; return ret;
} }
/**
* sbi_set_timer() - Program the timer for next timer event.
* @stime_value: The value after which next timer event should fire.
*
* Return: None
*/
void sbi_set_timer(uint64_t stime_value)
{
#if __riscv_xlen == 32
sbi_ecall(SBI_EXT_SET_TIMER, SBI_FID_SET_TIMER, stime_value,
stime_value >> 32, 0, 0, 0, 0);
#else
sbi_ecall(SBI_EXT_SET_TIMER, SBI_FID_SET_TIMER, stime_value,
0, 0, 0, 0, 0);
#endif
}
#ifdef CONFIG_SBI_V01 #ifdef CONFIG_SBI_V01
/** /**
@ -86,25 +103,6 @@ void sbi_shutdown(void)
sbi_ecall(SBI_EXT_0_1_SHUTDOWN, 0, 0, 0, 0, 0, 0, 0); sbi_ecall(SBI_EXT_0_1_SHUTDOWN, 0, 0, 0, 0, 0, 0, 0);
} }
#endif /* CONFIG_SBI_V01 */
/**
* sbi_set_timer() - Program the timer for next timer event.
* @stime_value: The value after which next timer event should fire.
*
* Return: None
*/
void sbi_set_timer(uint64_t stime_value)
{
#if __riscv_xlen == 32
sbi_ecall(SBI_EXT_SET_TIMER, SBI_FID_SET_TIMER, stime_value,
stime_value >> 32, 0, 0, 0, 0);
#else
sbi_ecall(SBI_EXT_SET_TIMER, SBI_FID_SET_TIMER, stime_value,
0, 0, 0, 0, 0);
#endif
}
/** /**
* sbi_send_ipi() - Send an IPI to any hart. * sbi_send_ipi() - Send an IPI to any hart.
* @hart_mask: A cpu mask containing all the target harts. * @hart_mask: A cpu mask containing all the target harts.
@ -185,3 +183,4 @@ int sbi_probe_extension(int extid)
return -ENOTSUPP; return -ENOTSUPP;
} }
#endif /* CONFIG_SBI_V01 */