[PATCH] arm: gic-v3-its: Fix LPI pending table size calculation

[Ye Li]

From: Lyrix liu <lyrix.liu at nxp.com>

The variable `pend_tab_total_sz` is calculated using the macro
`LPI_PENDBASE_SZ`, which depends on the global variable `lpi_id_bits`.

However, `lpi_id_bits` is initialized later in the function based on
the GICD_TYPER register. This results in `pend_tab_total_sz` being
calculated with an uninitialized `lpi_id_bits` value (0), This leads
to the LPI pending tables being mapped with an incorrect size.

Fixes: 60b9b47d295b ("Revert "arch: arm: use dt and UCLASS_SYSCON to get gic lpi details"")
Signed-off-by: Lyrix liu <lyrix.liu at nxp.com>
Signed-off-by: Ye Li <ye.li at nxp.com>
---
 arch/arm/lib/gic-v3-its.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/lib/gic-v3-its.c b/arch/arm/lib/gic-v3-its.c
index 34f05e94672..d11a1ea436e 100644
--- a/arch/arm/lib/gic-v3-its.c
+++ b/arch/arm/lib/gic-v3-its.c
@@ -81,7 +81,7 @@ int gic_lpi_tables_init(u64 base, u32 num_redist)
 	int i;
 	u64 redist_lpi_base;
 	u64 pend_base;
-	ulong pend_tab_total_sz = num_redist * LPI_PENDBASE_SZ;
+	ulong pend_tab_total_sz;
 	void *pend_tab_va;
 
 	if (gic_v3_its_get_gic_addr(&priv))
@@ -133,6 +133,7 @@ int gic_lpi_tables_init(u64 base, u32 num_redist)
 	}
 
 	redist_lpi_base = base + LPI_PROPBASE_SZ;
+	pend_tab_total_sz = num_redist * LPI_PENDBASE_SZ;
 	pend_tab_va = map_physmem(redist_lpi_base, pend_tab_total_sz,
 				  MAP_NOCACHE);
 	memset(pend_tab_va, 0, pend_tab_total_sz);
-- 
2.37.1