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e73b92d862
The sbi_hsm_hart_started_mask() API should take one more parameter to allow caller specify domain under which started_mask is being generated. Further, the sbi_hsm_hart_started_mask() depends on sbi_hsm_hart_get_state() which also should return HART state under specified domain. This patch updates both sbi_hsm_hart_started_mask() and sbi_hsm_hart_get_state() as-per above. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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* Nick Kossifidis <mick@ics.forth.gr>
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*/
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#include <sbi/riscv_asm.h>
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#include <sbi/sbi_bitops.h>
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#include <sbi/sbi_domain.h>
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#include <sbi/sbi_hart.h>
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#include <sbi/sbi_hsm.h>
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#include <sbi/sbi_platform.h>
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#include <sbi/sbi_system.h>
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#include <sbi/sbi_ipi.h>
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#include <sbi/sbi_init.h>
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void __noreturn sbi_system_reset(u32 platform_reset_type)
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{
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ulong hbase = 0, hmask;
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u32 cur_hartid = current_hartid();
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struct sbi_domain *dom = sbi_domain_thishart_ptr();
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struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
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/* Send HALT IPI to every hart other than the current hart */
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while (!sbi_hsm_hart_started_mask(dom, hbase, &hmask)) {
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if (hbase <= cur_hartid)
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hmask &= ~(1UL << (cur_hartid - hbase));
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if (hmask)
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sbi_ipi_send_halt(hmask, hbase);
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hbase += BITS_PER_LONG;
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}
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/* Stop current HART */
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sbi_hsm_hart_stop(scratch, FALSE);
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/* Platform specific reset */
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sbi_platform_system_reset(sbi_platform_ptr(scratch),
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platform_reset_type);
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/* If platform specific reset did not work then do sbi_exit() */
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sbi_exit(scratch);
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}
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