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platform: Remove the ipi_sync method from all platforms.

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OpenSBI manages outstanding TLB flush requests by queueing
them in a fifo synchronously. An ipi sync which uses an
atomic operation on MMIO address is no longer required.

Remove the ipi sync method from platform header and all usage.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Atish Patra
2019-08-14 18:02:15 -07:00
committed by Anup Patel
parent 897a97a6af
commit 75229705a0
8 changed files with 0 additions and 53 deletions
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15
include/sbi/sbi_platform.h
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@@ -90,8 +90,6 @@ struct sbi_platform_operations {
/** Send IPI to a target HART */
void (*ipi_send)(u32 target_hart);
/** Wait for target HART to acknowledge IPI */
void (*ipi_sync)(u32 target_hart);
/** Clear IPI for a target HART */
void (*ipi_clear)(u32 target_hart);
/** Initialize IPI for current HART */
@@ -370,19 +368,6 @@ static inline void sbi_platform_ipi_send(const struct sbi_platform *plat,
sbi_platform_ops(plat)->ipi_send(target_hart);
}
/**
* Wait for target HART to acknowledge IPI
*
* @param plat pointer to struct sbi_platform
* @param target_hart HART ID of IPI target
*/
static inline void sbi_platform_ipi_sync(const struct sbi_platform *plat,
u32 target_hart)
{
if (plat && sbi_platform_ops(plat)->ipi_sync)
sbi_platform_ops(plat)->ipi_sync(target_hart);
}
/**
* Clear IPI for a target HART
*