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include: Make sbi_current_hartid() as macro in riscv_asm.h

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The sbi_current_hartid() being a regular function is quite
expensive because for callers it is a function call instead
of a direct CSR read. This patch converts sbi_current_hartid()
into a macro in riscv_asm.h.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-03-12 10:21:25 +05:30
committed by Anup Patel
parent 16e7071f6d
commit 823345ecae
20 changed files with 49 additions and 52 deletions
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3
platform/template/platform.c
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@@ -4,6 +4,7 @@
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*/
#include <sbi/riscv_asm.h>
#include <sbi/riscv_encoding.h>
#include <sbi/sbi_const.h>
#include <sbi/sbi_platform.h>
@@ -82,7 +83,7 @@ static int platform_console_getc(void)
*/
static int platform_irqchip_init(bool cold_boot)
{
u32 hartid = sbi_current_hartid();
u32 hartid = current_hartid();
int ret;
/* Example if the generic PLIC driver is used */