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lib: utils: Allow PLIC functions to be used for multiple PLICs

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We extend all PLIC functions to have a "struct plic_data *"
parameter pointing to PLIC details. This allows platforms to
use these functions for multiple PLIC instances.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel 2020-05-12 12:57:52 +05:30 • committed by Anup Patel
parent 73d6ef3b29
commit 446a9c6d1e
12 changed files with 127 additions and 82 deletions
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16
platform/fpga/ariane/platform.c
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@ -26,6 +26,11 @@
#define ARIANE_HART_COUNT 1
#define ARIANE_CLINT_ADDR 0x2000000
static struct plic_data plic = {
.addr = ARIANE_PLIC_ADDR,
.num_src = ARIANE_PLIC_NUM_SOURCES,
};
/*
* Ariane platform early initialization.
*/
@ -70,19 +75,19 @@ static int plic_ariane_warm_irqchip_init(int m_cntx_id, int s_cntx_id)
/* By default, enable all IRQs for M-mode of target HART */
if (m_cntx_id > -1) {
for (i = 0; i < ie_words; i++)
plic_set_ie(m_cntx_id, i, 1);
plic_set_ie(&plic, m_cntx_id, i, 1);
}
/* Enable all IRQs for S-mode of target HART */
if (s_cntx_id > -1) {
for (i = 0; i < ie_words; i++)
plic_set_ie(s_cntx_id, i, 1);
plic_set_ie(&plic, s_cntx_id, i, 1);
}
/* By default, enable M-mode threshold */
if (m_cntx_id > -1)
plic_set_thresh(m_cntx_id, 1);
plic_set_thresh(&plic, m_cntx_id, 1);
/* By default, disable S-mode threshold */
if (s_cntx_id > -1)
plic_set_thresh(s_cntx_id, 0);
plic_set_thresh(&plic, s_cntx_id, 0);
return 0;
}
@ -96,8 +101,7 @@ static int ariane_irqchip_init(bool cold_boot)
int ret;
if (cold_boot) {
ret = plic_cold_irqchip_init(ARIANE_PLIC_NUM_SOURCES,
ARIANE_HART_COUNT);
ret = plic_cold_irqchip_init(&plic);
if (ret)
return ret;
}