Lukas Auer 90ae281437 riscv: add option to wait for ack from secondary harts in smp functions ... Add a wait option to smp_call_function() to wait for the secondary harts to acknowledge the call-function request. The request is considered to be acknowledged once each secondary hart has cleared the corresponding IPI. As part of the call-function request, the secondary harts invalidate the instruction cache after clearing the IPI. This adds a delay between acknowledgment (clear IPI) and fulfillment (call function) of the request. We want to use the acknowledgment to be able to judge when the request has been completed. Remove the delay by clearing the IPI after cache invalidation and just before calling the function from the request. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Rick Chen <rick@andestech.com> Tested-by: Rick Chen <rick@andestech.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>		2019-12-10 08:23:10 +08:00
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ax25	riscv: ax25: cache: Add SPL_RISCV_MMODE for SPL	2019-12-10 08:23:10 +08:00
generic	common: Move board_get_usable_ram_top() out of common.h	2019-12-02 18:25:04 -05:00
cpu.c	riscv: add run mode configuration for SPL	2019-08-26 16:07:42 +08:00
Makefile	riscv: Move trap handler codes to mtrap.S	2018-12-18 09:56:27 +08:00
mtrap.S	riscv: Return to previous privilege level after trap handling	2018-12-18 09:56:27 +08:00
start.S	riscv: add option to wait for ack from secondary harts in smp functions	2019-12-10 08:23:10 +08:00
u-boot-spl.lds	riscv: Fix clear bss loop in the start-up code	2019-12-10 08:23:10 +08:00
u-boot.lds	riscv: Fix clear bss loop in the start-up code	2019-12-10 08:23:10 +08:00