refactor(gicv3): use helper functions to get SPI/ESPI INTID limit
Use helper functions to get SPI and ESPI INTID limit, to remove
several pieces of similar code in gicv3 driver.
Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Change-Id: Iaf441fe5e333c4260e7f6d98df6fdd931591976d
diff --git a/drivers/arm/gic/v3/gicv3_main.c b/drivers/arm/gic/v3/gicv3_main.c
index 5a49b4f..668416c 100644
--- a/drivers/arm/gic/v3/gicv3_main.c
+++ b/drivers/arm/gic/v3/gicv3_main.c
@@ -728,40 +728,17 @@
*****************************************************************************/
void gicv3_distif_save(gicv3_dist_ctx_t * const dist_ctx)
{
- unsigned int typer_reg, num_ints;
-#if GIC_EXT_INTID
- unsigned int num_eints;
-#endif
-
assert(gicv3_driver_data != NULL);
assert(gicv3_driver_data->gicd_base != 0U);
assert(IS_IN_EL3());
assert(dist_ctx != NULL);
uintptr_t gicd_base = gicv3_driver_data->gicd_base;
-
- typer_reg = gicd_read_typer(gicd_base);
-
- /* Maximum SPI INTID is 32 * (GICD_TYPER.ITLinesNumber + 1) - 1 */
- num_ints = ((typer_reg & TYPER_IT_LINES_NO_MASK) + 1U) << 5;
-
- /* Filter out special INTIDs 1020-1023 */
- if (num_ints > (MAX_SPI_ID + 1U)) {
- num_ints = MAX_SPI_ID + 1U;
- }
-
+ unsigned int num_ints = gicv3_get_spi_limit(gicd_base);
#if GIC_EXT_INTID
- /* Check if extended SPI range is implemented */
- if ((typer_reg & TYPER_ESPI) != 0U) {
- /*
- * Maximum ESPI INTID is 32 * (GICD_TYPER.ESPI_range + 1) + 4095
- */
- num_eints = ((((typer_reg >> TYPER_ESPI_RANGE_SHIFT) &
- TYPER_ESPI_RANGE_MASK) + 1U) << 5) + MIN_ESPI_ID;
- } else {
- num_eints = 0U;
- }
+ unsigned int num_eints = gicv3_get_espi_limit(gicd_base);
#endif
+
/* Wait for pending write to complete */
gicd_wait_for_pending_write(gicd_base);
@@ -838,11 +815,6 @@
*****************************************************************************/
void gicv3_distif_init_restore(const gicv3_dist_ctx_t * const dist_ctx)
{
- unsigned int typer_reg, num_ints;
-#if GIC_EXT_INTID
- unsigned int num_eints;
-#endif
-
assert(gicv3_driver_data != NULL);
assert(gicv3_driver_data->gicd_base != 0U);
assert(IS_IN_EL3());
@@ -864,27 +836,9 @@
/* Set the ARE_S and ARE_NS bit now that interrupts have been disabled */
gicd_set_ctlr(gicd_base, CTLR_ARE_S_BIT | CTLR_ARE_NS_BIT, RWP_TRUE);
- typer_reg = gicd_read_typer(gicd_base);
-
- /* Maximum SPI INTID is 32 * (GICD_TYPER.ITLinesNumber + 1) - 1 */
- num_ints = ((typer_reg & TYPER_IT_LINES_NO_MASK) + 1U) << 5;
-
- /* Filter out special INTIDs 1020-1023 */
- if (num_ints > (MAX_SPI_ID + 1U)) {
- num_ints = MAX_SPI_ID + 1U;
- }
-
+ unsigned int num_ints = gicv3_get_spi_limit(gicd_base);
#if GIC_EXT_INTID
- /* Check if extended SPI range is implemented */
- if ((typer_reg & TYPER_ESPI) != 0U) {
- /*
- * Maximum ESPI INTID is 32 * (GICD_TYPER.ESPI_range + 1) + 4095
- */
- num_eints = ((((typer_reg >> TYPER_ESPI_RANGE_SHIFT) &
- TYPER_ESPI_RANGE_MASK) + 1U) << 5) + MIN_ESPI_ID;
- } else {
- num_eints = 0U;
- }
+ unsigned int num_eints = gicv3_get_espi_limit(gicd_base);
#endif
/* Restore GICD_IGROUPR for INTIDs 32 - 1019 */
RESTORE_GICD_REGS(gicd_base, dist_ctx, num_ints, igroupr, IGROUP);