plat-mediatek: add support to extend MAX_XLAT_TABLE

When using the reserved virtual memory space, it is necessary to increase MAX_XLAT_TABLE based on its size. Signed-off-by: Gavin Liu <gavin.liu@mediatek.com> Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
OP-TEE · Jun 20, 2024 · 1677a7f · 1677a7f
1 parent 7ae1573
commit 1677a7f
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/core/arch/arm/plat-mediatek/conf.mk b/core/arch/arm/plat-mediatek/conf.mk
@@ -14,6 +14,10 @@ CFG_DRAM_BASE ?= 0x40000000
 # default DRAM size 1 GiB
 CFG_DRAM_SIZE ?= 0x40000000
 
+# When need to create a virtual memory pool for mapping other
+# physical address, enable the config to increase MAX_XLAT_TABLES.
+CFG_MTK_RESERVED_VA ?= n
+
 ifeq ($(PLATFORM_FLAVOR),mt8173)
 # 2**1 = 2 cores per cluster
 $(call force,CFG_TEE_CORE_NB_CORE,4)

diff --git a/core/arch/arm/plat-mediatek/platform_config.h b/core/arch/arm/plat-mediatek/platform_config.h
@@ -123,8 +123,9 @@
 #error "Unknown platform flavor"
 #endif
 
-#ifdef CFG_WITH_LPAE
-#define MAX_XLAT_TABLES		5
+#ifdef CFG_MTK_RESERVED_VA
+#define MAX_XLAT_TABLES		(30 + (CFG_RESERVED_VASPACE_SIZE) / \
+				 (CORE_MMU_PGDIR_SIZE) + 1)
 #endif
 
 #endif /*PLATFORM_CONFIG_H*/