diff options
| -rw-r--r-- | ArmPlatformPkg/ArmVExpressPkg/Include/Platform/RTSM/ArmPlatform.h | 11 | ||||
| -rw-r--r-- | ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMMem.c | 14 |
2 files changed, 18 insertions, 7 deletions
diff --git a/ArmPlatformPkg/ArmVExpressPkg/Include/Platform/RTSM/ArmPlatform.h b/ArmPlatformPkg/ArmVExpressPkg/Include/Platform/RTSM/ArmPlatform.h index 06414e6e72..d856b6daa1 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/Include/Platform/RTSM/ArmPlatform.h +++ b/ArmPlatformPkg/ArmVExpressPkg/Include/Platform/RTSM/ArmPlatform.h @@ -40,9 +40,11 @@ #define ARM_VE_SMB_SRAM_BASE 0x2E000000
#define ARM_VE_SMB_SRAM_SZ SIZE_64KB
// USB, Ethernet, VRAM
-#define ARM_VE_SMB_PERIPH_BASE 0x18000000
-#define PL111_CLCD_VRAM_MOTHERBOARD_BASE ARM_VE_SMB_PERIPH_BASE
-#define ARM_VE_SMB_PERIPH_SZ SIZE_64MB
+#define ARM_VE_SMB_PERIPH_BASE 0x18800000
+#define ARM_VE_SMB_PERIPH_SZ (SIZE_64MB - SIZE_8MB)
+
+#define PL111_CLCD_VRAM_MOTHERBOARD_BASE 0x18000000
+#define PL111_CLCD_VRAM_MOTHERBOARD_SIZE 0x800000
// DRAM
#define ARM_VE_DRAM_BASE PcdGet64 (PcdSystemMemoryBase)
@@ -74,7 +76,4 @@ #define PL111_CLCD_MOTHERBOARD_VIDEO_MODE_OSC_ID 1
#define PL111_CLCD_CORE_TILE_VIDEO_MODE_OSC_ID 1
-// VRAM offset for the PL111 Colour LCD Controller on the motherboard
-#define VRAM_MOTHERBOARD_BASE (ARM_VE_SMB_PERIPH_BASE + 0x00000)
-
#endif
diff --git a/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMMem.c b/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMMem.c index 14c7e8e1d6..6379e81751 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMMem.c +++ b/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMMem.c @@ -21,7 +21,7 @@ #include <ArmPlatform.h>
// Number of Virtual Memory Map Descriptors
-#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 8
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 9
// DDR attributes
#define DDR_ATTRIBUTES_CACHED ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
@@ -130,6 +130,18 @@ ArmPlatformGetVirtualMemoryMap ( VirtualMemoryTable[Index].Length = 2 * ARM_VE_SMB_PERIPH_SZ;
VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+ // VRAM
+ VirtualMemoryTable[++Index].PhysicalBase = PL111_CLCD_VRAM_MOTHERBOARD_BASE;
+ VirtualMemoryTable[Index].VirtualBase = PL111_CLCD_VRAM_MOTHERBOARD_BASE;
+ VirtualMemoryTable[Index].Length = PL111_CLCD_VRAM_MOTHERBOARD_SIZE;
+ //
+ // Map the VRAM region as Normal Non-Cacheable memory and not device memory,
+ // so that we can use the accelerated string routines that may use unaligned
+ // accesses or DC ZVA instructions. The enum identifier is slightly awkward
+ // here, but it maps to a memory type that allows buffering and reordering.
+ //
+ VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED;
+
// Map sparse memory region if present
if (HasSparseMemory) {
VirtualMemoryTable[++Index].PhysicalBase = SparseMemoryBase;
|