lib: utils/ipi: Fix size check in aclint_mswi_cold_init()

Currently, the ACLINT MSWI size check is forcing size to be at least
0x4000. This is inappropriate check because most systems will never
utilize full 16KB for a single ACLINT MSWI device so instead we should
check that ACLINT MSWI size is enough for on the associated HARTs.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Dong Du <Dd_nirvana@sjtu.edu.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/lib/utils/ipi/aclint_mswi.c b/lib/utils/ipi/aclint_mswi.c
index a3de2f5..832e223 100644 (file)
--- a/lib/utils/ipi/aclint_mswi.c
+++ b/lib/utils/ipi/aclint_mswi.c
@@ -74,7 +74,7 @@ int aclint_mswi_cold_init(struct aclint_mswi_data *mswi)
 
        /* Sanity checks */
        if (!mswi || (mswi->addr & (ACLINT_MSWI_ALIGN - 1)) ||
-           (mswi->size < ACLINT_MSWI_SIZE) ||
+           (mswi->size < (mswi->hart_count * sizeof(u32))) ||
            (mswi->first_hartid >= SBI_HARTMASK_MAX_BITS) ||
            (mswi->hart_count > ACLINT_MSWI_MAX_HARTS))
                return SBI_EINVAL;