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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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29
platform/fpga/openpiton/platform.c
View file

@ -27,14 +27,14 @@
#define OPENPITON_DEFAULT_CLINT_ADDR 0xfff1020000
static struct platform_uart_data uart = {
OPENPITON_DEFAULT_UART_ADDR,
OPENPITON_DEFAULT_UART_FREQ,
OPENPITON_DEFAULT_UART_BAUDRATE,
};
static struct platform_plic_data plic = {
OPENPITON_DEFAULT_PLIC_ADDR,
OPENPITON_DEFAULT_PLIC_NUM_SOURCES,
};
OPENPITON_DEFAULT_UART_ADDR,
OPENPITON_DEFAULT_UART_FREQ,
OPENPITON_DEFAULT_UART_BAUDRATE,
};
static struct plic_data plic = {
.addr = OPENPITON_DEFAULT_PLIC_ADDR,
.num_src = OPENPITON_DEFAULT_PLIC_NUM_SOURCES,
};
static unsigned long clint_addr = OPENPITON_DEFAULT_CLINT_ADDR;
/*
@ -44,7 +44,7 @@ static int openpiton_early_init(bool cold_boot)
{
void *fdt;
struct platform_uart_data uart_data;
struct platform_plic_data plic_data;
struct plic_data plic_data;
unsigned long clint_data;
int rc;
@ -102,19 +102,19 @@ static int plic_openpiton_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;
}
@ -128,8 +128,7 @@ static int openpiton_irqchip_init(bool cold_boot)
int ret;
if (cold_boot) {
ret = plic_cold_irqchip_init(plic.addr,
plic.num_src);
ret = plic_cold_irqchip_init(&plic);
if (ret)
return ret;
}