mirror of
https://github.com/riscv-software-src/opensbi.git
synced 2025-08-24 15:31:22 +01:00
678f5909a3
Now that driver lifecycle is managed from within the SBI irqchip core, platforms need only to initialize the driver once during cold init. Remove the remaining platform hooks that are no longer used. Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org>
70 lines
1.2 KiB
C
70 lines
1.2 KiB
C
/*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2022 Ventana Micro Systems Inc.
|
|
*
|
|
* Authors:
|
|
* Anup Patel <apatel@ventanamicro.com>
|
|
*/
|
|
|
|
#include <sbi/sbi_irqchip.h>
|
|
#include <sbi/sbi_list.h>
|
|
#include <sbi/sbi_platform.h>
|
|
|
|
static SBI_LIST_HEAD(irqchip_list);
|
|
|
|
static int default_irqfn(void)
|
|
{
|
|
return SBI_ENODEV;
|
|
}
|
|
|
|
static int (*ext_irqfn)(void) = default_irqfn;
|
|
|
|
void sbi_irqchip_set_irqfn(int (*fn)(void))
|
|
{
|
|
if (fn)
|
|
ext_irqfn = fn;
|
|
}
|
|
|
|
int sbi_irqchip_process(void)
|
|
{
|
|
return ext_irqfn();
|
|
}
|
|
|
|
void sbi_irqchip_add_device(struct sbi_irqchip_device *dev)
|
|
{
|
|
sbi_list_add_tail(&dev->node, &irqchip_list);
|
|
}
|
|
|
|
int sbi_irqchip_init(struct sbi_scratch *scratch, bool cold_boot)
|
|
{
|
|
int rc;
|
|
const struct sbi_platform *plat = sbi_platform_ptr(scratch);
|
|
struct sbi_irqchip_device *dev;
|
|
|
|
if (cold_boot) {
|
|
rc = sbi_platform_irqchip_init(plat);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
sbi_list_for_each_entry(dev, &irqchip_list, node) {
|
|
if (!dev->warm_init)
|
|
continue;
|
|
rc = dev->warm_init(dev);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
if (ext_irqfn != default_irqfn)
|
|
csr_set(CSR_MIE, MIP_MEIP);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void sbi_irqchip_exit(struct sbi_scratch *scratch)
|
|
{
|
|
if (ext_irqfn != default_irqfn)
|
|
csr_clear(CSR_MIE, MIP_MEIP);
|
|
}
|