Firmware/opensbi
8
0
Fork 0
forked from Mirrors/opensbi
Code Pull Requests Activity

lib: utils/irqchip: Move per-hart data from fdt_plic to plic

Browse Source 
The per-hart PLIC pointer is not really specific to FDT platforms. Move
it into the main driver and drop the extra wrapper functions.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2024-11-04 20:10:06 -08:00
committed by Anup Patel
parent c6c22f00f4
commit 56fddce83f
10 changed files with 60 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
lib/utils/irqchip/plic.c
View File

@@ -27,6 +27,21 @@
#define THEAD_PLIC_CTRL_REG 0x1ffffc
static unsigned long plic_ptr_offset;
#define plic_get_hart_data_ptr(__scratch) \
sbi_scratch_read_type((__scratch), void *, plic_ptr_offset)
#define plic_set_hart_data_ptr(__scratch, __plic) \
sbi_scratch_write_type((__scratch), void *, plic_ptr_offset, (__plic))
struct plic_data *plic_get(void)
{
struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
return plic_get_hart_data_ptr(scratch);
}
static u32 plic_get_priority(const struct plic_data *plic, u32 source)
{
volatile void *plic_priority = (char *)plic->addr +
@@ -109,8 +124,10 @@ static int plic_context_init(const struct plic_data *plic, int context_id,
return 0;
}
void plic_suspend(const struct plic_data *plic)
void plic_suspend(void)
{
struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
const struct plic_data *plic = plic_get_hart_data_ptr(scratch);
u32 ie_words = PLIC_IE_WORDS(plic);
u32 *data_word = plic->pm_data;
u8 *data_byte;
@@ -138,8 +155,10 @@ void plic_suspend(const struct plic_data *plic)
*data_byte++ = plic_get_priority(plic, i);
}
void plic_resume(const struct plic_data *plic)
void plic_resume(void)
{
struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
const struct plic_data *plic = plic_get_hart_data_ptr(scratch);
u32 ie_words = PLIC_IE_WORDS(plic);
u32 *data_word = plic->pm_data;
u8 *data_byte;
@@ -170,8 +189,10 @@ void plic_resume(const struct plic_data *plic)
plic_delegate(plic);
}
int plic_warm_irqchip_init(const struct plic_data *plic)
int plic_warm_irqchip_init(void)
{
struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
const struct plic_data *plic = plic_get_hart_data_ptr(scratch);
u32 hartindex = current_hartindex();
s16 m_cntx_id = plic->context_map[hartindex][PLIC_M_CONTEXT];
s16 s_cntx_id = plic->context_map[hartindex][PLIC_S_CONTEXT];
@@ -201,11 +222,17 @@ int plic_warm_irqchip_init(const struct plic_data *plic)
int plic_cold_irqchip_init(struct plic_data *plic)
{
int i;
int i, ret;
if (!plic)
return SBI_EINVAL;
if (!plic_ptr_offset) {
plic_ptr_offset = sbi_scratch_alloc_type_offset(void *);
if (!plic_ptr_offset)
return SBI_ENOMEM;
}
if (plic->flags & PLIC_FLAG_ENABLE_PM) {
unsigned long data_size = 0;
@@ -237,7 +264,19 @@ int plic_cold_irqchip_init(struct plic_data *plic)
plic_delegate(plic);
return sbi_domain_root_add_memrange(plic->addr, plic->size, BIT(20),
ret = sbi_domain_root_add_memrange(plic->addr, plic->size, BIT(20),
(SBI_DOMAIN_MEMREGION_MMIO |
SBI_DOMAIN_MEMREGION_SHARED_SURW_MRW));
if (ret)
return ret;
for (u32 i = 0; i <= sbi_scratch_last_hartindex(); i++) {
if (plic->context_map[i][PLIC_M_CONTEXT] < 0 &&
plic->context_map[i][PLIC_S_CONTEXT] < 0)
continue;
plic_set_hart_data_ptr(sbi_hartindex_to_scratch(i), plic);
}
return 0;
}