Fix #281, cleanup memory range table

A number of cleanup items related to the PSP memory range API - Make the table itself an internal object - should only be accessed via the PSP API. - Update to use size_t instead of uint32 - Update the Linux/RTEMS implementation to use full range (SIZE_MAX).
nasa · Mar 29, 2021 · 4db4fbe · 4db4fbe
1 parent 73366d4
commit 4db4fbe
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Showing 15 changed files with 91 additions and 234 deletions.
diff --git a/fsw/inc/cfe_psp.h b/fsw/inc/cfe_psp.h
@@ -157,18 +157,6 @@
 ** Type Definitions
 */
 
-/*
-** Memory table type
-*/
-typedef struct
-{
-    uint32  MemoryType;
-    uint32  WordSize;
-    cpuaddr StartAddr;
-    uint32  Size;
-    uint32  Attributes;
-} CFE_PSP_MemTable_t;
-
 /*
 ** Function prototypes
 */
@@ -394,11 +382,11 @@ int32 CFE_PSP_MemWrite32(cpuaddr MemoryAddress, uint32 uint32Value);
 int32 CFE_PSP_MemCpy(void *dest, const void *src, uint32 n);
 int32 CFE_PSP_MemSet(void *dest, uint8 value, uint32 n);
 
-int32  CFE_PSP_MemValidateRange(cpuaddr Address, uint32 Size, uint32 MemoryType);
+int32  CFE_PSP_MemValidateRange(cpuaddr Address, size_t Size, uint32 MemoryType);
 uint32 CFE_PSP_MemRanges(void);
-int32  CFE_PSP_MemRangeSet(uint32 RangeNum, uint32 MemoryType, cpuaddr StartAddr, uint32 Size, uint32 WordSize,
+int32  CFE_PSP_MemRangeSet(uint32 RangeNum, uint32 MemoryType, cpuaddr StartAddr, size_t Size, size_t WordSize,
                            uint32 Attributes);
-int32  CFE_PSP_MemRangeGet(uint32 RangeNum, uint32 *MemoryType, cpuaddr *StartAddr, uint32 *Size, uint32 *WordSize,
+int32  CFE_PSP_MemRangeGet(uint32 RangeNum, uint32 *MemoryType, cpuaddr *StartAddr, size_t *Size, size_t *WordSize,
                            uint32 *Attributes);
 
 int32 CFE_PSP_EepromWrite8(cpuaddr MemoryAddress, uint8 ByteValue);

diff --git a/fsw/inc/cfe_psp_configdata.h b/fsw/inc/cfe_psp_configdata.h
@@ -56,11 +56,9 @@ typedef const struct
  */
 typedef const struct
 {
-    uint32              PSP_WatchdogMin;      /**< PSP Minimum watchdog in milliseconds */
-    uint32              PSP_WatchdogMax;      /**< PSP Maximum watchdog in milliseconds */
-    uint32              PSP_MemTableSize;     /**< Size of PSP memory table */
-    uint32              PSP_ExceptionLogSize; /**< Size of PSP exception log */
-    CFE_PSP_MemTable_t *PSP_MemoryTable;      /**< Pointer to PSP memory table (forward reference) */
+    uint32 PSP_WatchdogMin;      /**< PSP Minimum watchdog in milliseconds */
+    uint32 PSP_WatchdogMax;      /**< PSP Maximum watchdog in milliseconds */
+    uint32 PSP_ExceptionLogSize; /**< Size of PSP exception log */
 
     /**
      * Number of EEPROM banks on this platform
@@ -77,10 +75,4 @@ typedef const struct
  */
 extern Target_PspConfigData GLOBAL_PSP_CONFIGDATA;
 
-/**
- * Extern reference to the psp memory table
- * Allows the actual instantiation to be done outside this module
- */
-extern CFE_PSP_MemTable_t CFE_PSP_MemoryTable[];
-
 #endif /* CFE_PSP_CONFIG_H_ */
diff --git a/fsw/mcp750-vxworks/CMakeLists.txt b/fsw/mcp750-vxworks/CMakeLists.txt
@@ -4,14 +4,13 @@
 #
 ######################################################################
 
-# This contains the fully platform-specific code to 
+# This contains the fully platform-specific code to
 # run CFE on this target.
 
 # Build the mcp750-vxworks implementation as a library
 add_library(psp-${CFE_PSP_TARGETNAME}-impl OBJECT
     src/cfe_psp_exception.c
     src/cfe_psp_memory.c
-    src/cfe_psp_memtab.c
     src/cfe_psp_ssr.c
     src/cfe_psp_start.c
     src/cfe_psp_support.c
@@ -22,7 +21,7 @@ target_compile_definitions(psp-${CFE_SYSTEM_PSPNAME}-impl PRIVATE
     $<TARGET_PROPERTY:psp_module_api,INTERFACE_COMPILE_DEFINITIONS>
 )
 
-target_include_directories(psp-${CFE_PSP_TARGETNAME}-impl PRIVATE 
+target_include_directories(psp-${CFE_PSP_TARGETNAME}-impl PRIVATE
     inc
     $<TARGET_PROPERTY:psp_module_api,INTERFACE_INCLUDE_DIRECTORIES>
 )

diff --git a/fsw/mcp750-vxworks/src/cfe_psp_memory.c b/fsw/mcp750-vxworks/src/cfe_psp_memory.c
@@ -408,6 +408,11 @@ void CFE_PSP_SetupReservedMemoryMap(void)
 
     OS_printf("CFE_PSP: MCP750 Reserved Memory Block at 0x%08lx, Total Size = 0x%lx\n",
               (unsigned long)MCP750_ReservedMemBlock.BlockPtr, (unsigned long)MCP750_ReservedMemBlock.BlockSize);
+
+    /*
+     * Set up the "RAM" entry in the memory table.
+     */
+    CFE_PSP_MemRangeSet(0, CFE_PSP_MEM_RAM, 0, 0x8000000, CFE_PSP_MEM_SIZE_DWORD, CFE_PSP_MEM_ATTR_READWRITE);
 }
 
 /******************************************************************************

diff --git a/fsw/mcp750-vxworks/src/cfe_psp_memtab.c b/fsw/mcp750-vxworks/src/cfe_psp_memtab.c
diff --git a/fsw/pc-linux/CMakeLists.txt b/fsw/pc-linux/CMakeLists.txt
@@ -4,14 +4,13 @@
 #
 ######################################################################
 
-# This contains the fully platform-specific code to 
+# This contains the fully platform-specific code to
 # run CFE on this target.
 
 # Build the pc-linux implementation as a library
 add_library(psp-${CFE_PSP_TARGETNAME}-impl OBJECT
     src/cfe_psp_exception.c
     src/cfe_psp_memory.c
-    src/cfe_psp_memtab.c
     src/cfe_psp_ssr.c
     src/cfe_psp_start.c
     src/cfe_psp_support.c
@@ -26,7 +25,7 @@ target_compile_definitions(psp-${CFE_SYSTEM_PSPNAME}-impl PRIVATE
     $<TARGET_PROPERTY:psp_module_api,INTERFACE_COMPILE_DEFINITIONS>
 )
 
-target_include_directories(psp-${CFE_PSP_TARGETNAME}-impl PRIVATE 
+target_include_directories(psp-${CFE_PSP_TARGETNAME}-impl PRIVATE
     inc
     $<TARGET_PROPERTY:psp_module_api,INTERFACE_INCLUDE_DIRECTORIES>
 )

diff --git a/fsw/pc-linux/src/cfe_psp_memory.c b/fsw/pc-linux/src/cfe_psp_memory.c
@@ -674,6 +674,13 @@ void CFE_PSP_SetupReservedMemoryMap(void)
     CFE_PSP_InitResetArea();
     CFE_PSP_InitVolatileDiskMem();
     CFE_PSP_InitUserReservedArea();
+
+    /*
+     * Set up the "RAM" entry in the memory table.
+     * On Linux this is just encompasses the entire memory space, but an entry needs
+     * to exist so that CFE_PSP_ValidateMemRange() works as intended.
+     */
+    CFE_PSP_MemRangeSet(0, CFE_PSP_MEM_RAM, 0, SIZE_MAX, CFE_PSP_MEM_SIZE_DWORD, CFE_PSP_MEM_ATTR_READWRITE);
 }
 
 int32 CFE_PSP_InitProcessorReservedMemory(uint32 RestartType)

diff --git a/fsw/pc-linux/src/cfe_psp_memtab.c b/fsw/pc-linux/src/cfe_psp_memtab.c
diff --git a/fsw/pc-rtems/CMakeLists.txt b/fsw/pc-rtems/CMakeLists.txt
@@ -4,14 +4,13 @@
 #
 ######################################################################
 
-# This contains the fully platform-specific code to 
+# This contains the fully platform-specific code to
 # run CFE on this target.
 
 # Build the pc-rtems implementation as a library
 add_library(psp-${CFE_PSP_TARGETNAME}-impl OBJECT
     src/cfe_psp_exception.c
     src/cfe_psp_memory.c
-    src/cfe_psp_memtab.c
     src/cfe_psp_ssr.c
     src/cfe_psp_start.c
     src/cfe_psp_support.c
@@ -23,7 +22,7 @@ target_compile_definitions(psp-${CFE_SYSTEM_PSPNAME}-impl PRIVATE
     $<TARGET_PROPERTY:psp_module_api,INTERFACE_COMPILE_DEFINITIONS>
 )
 
-target_include_directories(psp-${CFE_PSP_TARGETNAME}-impl PRIVATE 
+target_include_directories(psp-${CFE_PSP_TARGETNAME}-impl PRIVATE
     inc
     $<TARGET_PROPERTY:psp_module_api,INTERFACE_INCLUDE_DIRECTORIES>
 )

diff --git a/fsw/pc-rtems/src/cfe_psp_memory.c b/fsw/pc-rtems/src/cfe_psp_memory.c
@@ -418,6 +418,13 @@ void CFE_PSP_SetupReservedMemoryMap(void)
      * (prefer this over removing the increment, as it is safer if another block is added)
      */
     OS_printf("CFE_PSP: PSP reserved memory ends at: 0x%08lX\n", (unsigned long)ReservedMemoryAddr);
+
+    /*
+     * Set up the "RAM" entry in the memory table.
+     * On RTEMS this is just encompasses the entire memory space, but an entry needs
+     * to exist so that CFE_PSP_ValidateMemRange() works as intended.
+     */
+    CFE_PSP_MemRangeSet(0, CFE_PSP_MEM_RAM, 0, SIZE_MAX, CFE_PSP_MEM_SIZE_DWORD, CFE_PSP_MEM_ATTR_READWRITE);
 }
 
 /******************************************************************************

diff --git a/fsw/pc-rtems/src/cfe_psp_memtab.c b/fsw/pc-rtems/src/cfe_psp_memtab.c
diff --git a/fsw/shared/inc/cfe_psp_memory.h b/fsw/shared/inc/cfe_psp_memory.h
@@ -42,6 +42,18 @@
 #include "cfe_psp_config.h"
 #include "cfe_psp_exceptionstorage_types.h"
 
+/*
+** Memory table type
+*/
+typedef struct
+{
+    uint32  MemoryType;
+    size_t  WordSize;
+    cpuaddr StartAddr;
+    size_t  Size;
+    uint32  Attributes;
+} CFE_PSP_MemTable_t;
+
 typedef struct
 {
     void * BlockPtr;
@@ -58,6 +70,16 @@ typedef struct
     CFE_PSP_MemoryBlock_t VolatileDiskMemory;
     CFE_PSP_MemoryBlock_t CDSMemory;
     CFE_PSP_MemoryBlock_t UserReservedMemory;
+
+    /**
+     * \brief The system memory table
+     *
+     * This is the table used for CFE_PSP_MemRangeGet/Set and related ops
+     * that allow CFE applications to query the general system memory map.
+     */
+
+    CFE_PSP_MemTable_t SysMemoryTable[CFE_PSP_MEM_TABLE_SIZE];
+
 } CFE_PSP_ReservedMemoryMap_t;
 
 /**

diff --git a/fsw/shared/src/cfe_psp_configdata.c b/fsw/shared/src/cfe_psp_configdata.c
@@ -38,10 +38,8 @@
  * code such as CFE core or apps would not be able to \#include the
  * PSP cfe_psp_config.h or psp_version.h files
  */
-Target_PspConfigData GLOBAL_PSP_CONFIGDATA = {.PSP_WatchdogMin  = CFE_PSP_WATCHDOG_MIN,
-                                              .PSP_WatchdogMax  = CFE_PSP_WATCHDOG_MAX,
-                                              .PSP_MemTableSize = CFE_PSP_MEM_TABLE_SIZE,
-                                              .PSP_MemoryTable  = CFE_PSP_MemoryTable,
+Target_PspConfigData GLOBAL_PSP_CONFIGDATA = {.PSP_WatchdogMin = CFE_PSP_WATCHDOG_MIN,
+                                              .PSP_WatchdogMax = CFE_PSP_WATCHDOG_MAX,
 
                                               .HW_NumEepromBanks = CFE_PSP_NUM_EEPROM_BANKS,