mirror of
https://github.com/Fishwaldo/opensbi.git
synced 2025-03-15 19:31:32 +00:00
lib: utils/ipi: Use scratch space to save per-HART MSWI pointer
Instead of using a global array indexed by hartid, we should use scratch space to save per-HART MSWI pointer. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
This commit is contained in:
parent
3c1c972cb6
commit
acbd8fce9e
1 changed files with 33 additions and 10 deletions
|
@ -12,21 +12,30 @@
|
|||
#include <sbi/riscv_io.h>
|
||||
#include <sbi/sbi_domain.h>
|
||||
#include <sbi/sbi_error.h>
|
||||
#include <sbi/sbi_hartmask.h>
|
||||
#include <sbi/sbi_ipi.h>
|
||||
#include <sbi/sbi_scratch.h>
|
||||
#include <sbi/sbi_timer.h>
|
||||
#include <sbi_utils/ipi/aclint_mswi.h>
|
||||
|
||||
static struct aclint_mswi_data *mswi_hartid2data[SBI_HARTMASK_MAX_BITS];
|
||||
static unsigned long mswi_ptr_offset;
|
||||
|
||||
#define mswi_get_hart_data_ptr(__scratch) \
|
||||
sbi_scratch_read_type((__scratch), void *, mswi_ptr_offset)
|
||||
|
||||
#define mswi_set_hart_data_ptr(__scratch, __mswi) \
|
||||
sbi_scratch_write_type((__scratch), void *, mswi_ptr_offset, (__mswi))
|
||||
|
||||
static void mswi_ipi_send(u32 target_hart)
|
||||
{
|
||||
u32 *msip;
|
||||
struct sbi_scratch *scratch;
|
||||
struct aclint_mswi_data *mswi;
|
||||
|
||||
if (SBI_HARTMASK_MAX_BITS <= target_hart)
|
||||
scratch = sbi_hartid_to_scratch(target_hart);
|
||||
if (!scratch)
|
||||
return;
|
||||
mswi = mswi_hartid2data[target_hart];
|
||||
|
||||
mswi = mswi_get_hart_data_ptr(scratch);
|
||||
if (!mswi)
|
||||
return;
|
||||
|
||||
|
@ -38,11 +47,14 @@ static void mswi_ipi_send(u32 target_hart)
|
|||
static void mswi_ipi_clear(u32 target_hart)
|
||||
{
|
||||
u32 *msip;
|
||||
struct sbi_scratch *scratch;
|
||||
struct aclint_mswi_data *mswi;
|
||||
|
||||
if (SBI_HARTMASK_MAX_BITS <= target_hart)
|
||||
scratch = sbi_hartid_to_scratch(target_hart);
|
||||
if (!scratch)
|
||||
return;
|
||||
mswi = mswi_hartid2data[target_hart];
|
||||
|
||||
mswi = mswi_get_hart_data_ptr(scratch);
|
||||
if (!mswi)
|
||||
return;
|
||||
|
||||
|
@ -69,19 +81,30 @@ int aclint_mswi_cold_init(struct aclint_mswi_data *mswi)
|
|||
{
|
||||
u32 i;
|
||||
int rc;
|
||||
struct sbi_scratch *scratch;
|
||||
unsigned long pos, region_size;
|
||||
struct sbi_domain_memregion reg;
|
||||
|
||||
/* Sanity checks */
|
||||
if (!mswi || (mswi->addr & (ACLINT_MSWI_ALIGN - 1)) ||
|
||||
(mswi->size < (mswi->hart_count * sizeof(u32))) ||
|
||||
(mswi->first_hartid + mswi->hart_count > SBI_HARTMASK_MAX_BITS) ||
|
||||
(!mswi->hart_count || mswi->hart_count > ACLINT_MSWI_MAX_HARTS))
|
||||
return SBI_EINVAL;
|
||||
|
||||
/* Update MSWI hartid table */
|
||||
for (i = 0; i < mswi->hart_count; i++)
|
||||
mswi_hartid2data[mswi->first_hartid + i] = mswi;
|
||||
/* Allocate scratch space pointer */
|
||||
if (!mswi_ptr_offset) {
|
||||
mswi_ptr_offset = sbi_scratch_alloc_type_offset(void *);
|
||||
if (!mswi_ptr_offset)
|
||||
return SBI_ENOMEM;
|
||||
}
|
||||
|
||||
/* Update MSWI pointer in scratch space */
|
||||
for (i = 0; i < mswi->hart_count; i++) {
|
||||
scratch = sbi_hartid_to_scratch(mswi->first_hartid + i);
|
||||
if (!scratch)
|
||||
return SBI_ENOENT;
|
||||
mswi_set_hart_data_ptr(scratch, mswi);
|
||||
}
|
||||
|
||||
/* Add MSWI regions to the root domain */
|
||||
for (pos = 0; pos < mswi->size; pos += ACLINT_MSWI_ALIGN) {
|
||||
|
|
Loading…
Add table
Reference in a new issue