feat(tzc400): update filters by region
Add a new function that allows to enable or disabled filters on
configured regions dynamically. This will avoid the need to
reconfigure the entire attribute and just manage to
enable/disable filters.
Change-Id: If0937ca755bec6c45d3649718147108459682fff
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
diff --git a/drivers/arm/tzc/tzc_common_private.h b/drivers/arm/tzc/tzc_common_private.h
index 1d99077..2090944 100644
--- a/drivers/arm/tzc/tzc_common_private.h
+++ b/drivers/arm/tzc/tzc_common_private.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -90,6 +90,27 @@
}
/*
+ * It is used to modify the filters status for a defined region.
+ */
+#define DEFINE_TZC_COMMON_UPDATE_FILTERS(fn_name, macro_name) \
+ static inline void _tzc##fn_name##_update_filters( \
+ uintptr_t base, \
+ unsigned int region_no, \
+ unsigned int nbfilters, \
+ unsigned int filters) \
+ { \
+ uint32_t filters_mask = GENMASK(nbfilters - 1U, 0); \
+ \
+ mmio_clrsetbits_32(base + \
+ TZC_REGION_OFFSET( \
+ TZC_##macro_name##_REGION_SIZE, \
+ region_no) + \
+ TZC_##macro_name##_REGION_ATTR_0_OFFSET, \
+ filters_mask << TZC_REGION_ATTR_F_EN_SHIFT, \
+ filters << TZC_REGION_ATTR_F_EN_SHIFT); \
+ }
+
+/*
* It is used to program region 0 ATTRIBUTES and ACCESS register.
*/
#define DEFINE_TZC_COMMON_CONFIGURE_REGION0(fn_name) \