Rework memory information passing to BL3-x images
The issues addressed in this patch are:
1. Remove meminfo_t from the common interfaces in BL3-x,
expecting that platform code will find a suitable mechanism
to determine the memory extents in these images and provide
it to the BL3-x images.
2. Remove meminfo_t and bl31_plat_params_t from all FVP BL3-x
code as the images use link-time information to determine
memory extents.
meminfo_t is still used by common interface in BL1/BL2 for
loading images
Change-Id: I4e825ebf6f515b59d84dc2bdddf6edbf15e2d60f
diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c
index a667ffc..a7c7386 100644
--- a/bl32/tsp/tsp_main.c
+++ b/bl32/tsp/tsp_main.c
@@ -38,6 +38,13 @@
#include <tsp.h>
/*******************************************************************************
+ * Declarations of linker defined symbols which will help us find the layout
+ * of trusted SRAM
+ ******************************************************************************/
+extern unsigned long __RO_START__;
+extern unsigned long __COHERENT_RAM_END__;
+
+/*******************************************************************************
* Lock to control access to the console
******************************************************************************/
spinlock_t console_lock;
@@ -66,6 +73,15 @@
tsp_cpu_suspend_entry,
};
+
+/*******************************************************************************
+ * The BL32 memory footprint starts with an RO sections and ends
+ * with a section for coherent RAM. Use it to find the memory size
+ ******************************************************************************/
+#define BL32_TOTAL_BASE (unsigned long)(&__RO_START__)
+
+#define BL32_TOTAL_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
+
static tsp_args_t *set_smc_args(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
@@ -107,10 +123,6 @@
uint64_t mpidr = read_mpidr();
uint32_t linear_id = platform_get_core_pos(mpidr);
-#if DEBUG
- meminfo_t *mem_layout = bl32_plat_sec_mem_layout();
-#endif
-
/* Initialize the platform */
bl32_platform_setup();
@@ -123,10 +135,9 @@
spin_lock(&console_lock);
printf("TSP %s\n\r", build_message);
- INFO("Total memory base : 0x%x\n", mem_layout->total_base);
- INFO("Total memory size : 0x%x bytes\n", mem_layout->total_size);
- INFO("Free memory base : 0x%x\n", mem_layout->free_base);
- INFO("Free memory size : 0x%x bytes\n", mem_layout->free_size);
+ INFO("Total memory base : 0x%x\n", (unsigned long)BL32_TOTAL_BASE);
+ INFO("Total memory size : 0x%x bytes\n",
+ (unsigned long)(BL32_TOTAL_LIMIT - BL32_TOTAL_BASE));
INFO("cpu 0x%x: %d smcs, %d erets %d cpu on requests\n", mpidr,
tsp_stats[linear_id].smc_count,
tsp_stats[linear_id].eret_count,