diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-12-13 06:18:36 +0100 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-02-04 06:06:41 +0100 |
commit | eea21eaca117ecd98afea164e1808d6530ef487f (patch) | |
tree | ca4e15da28b71a5ecca5fc357798261a39b3f250 /bsps/powerpc/qoriq | |
parent | bsps: Remove uses of BSP_GET_WORK_AREA_DEBUG (diff) | |
download | rtems-eea21eaca117ecd98afea164e1808d6530ef487f.tar.bz2 |
bsps: Rework work area initialization
The work area initialization was done by the BSP through
bsp_work_area_initialize(). This approach predated the system
initialization through the system initialization linker set. The
workspace and C program heap were unconditionally initialized. The aim
is to support RTEMS application configurations which do not need the
workspace and C program heap. In these configurations, the workspace
and C prgram heap should not get initialized.
Change all bsp_work_area_initialize() to implement _Memory_Get()
instead. Move the dirty memory, sbrk(), per-CPU data, workspace, and
malloc() heap initialization into separate system initialization steps.
This makes it also easier to test the individual initialization steps.
This change adds a dependency to _Heap_Extend() to all BSPs. This
dependency will be removed in a follow up change.
Update #3838.
Diffstat (limited to 'bsps/powerpc/qoriq')
-rw-r--r-- | bsps/powerpc/qoriq/start/mmu-config.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/bsps/powerpc/qoriq/start/mmu-config.c b/bsps/powerpc/qoriq/start/mmu-config.c index d13325fbd2..296b071929 100644 --- a/bsps/powerpc/qoriq/start/mmu-config.c +++ b/bsps/powerpc/qoriq/start/mmu-config.c @@ -32,6 +32,7 @@ #include <libfdt.h> #include <rtems/config.h> +#include <rtems/sysinit.h> #define TEXT __attribute__((section(".bsp_start_text"))) #define DATA __attribute__((section(".bsp_start_data"))) @@ -338,11 +339,29 @@ void TEXT qoriq_mmu_config(bool boot_processor, int first_tlb, int scratch_tlb) qoriq_mmu_write_to_tlb1(&context, first_tlb); } -void TEXT bsp_work_area_initialize(void) +static Memory_Area _Memory_Areas[1]; + +static const Memory_Information _Memory_Information = + MEMORY_INFORMATION_INITIALIZER(_Memory_Areas); + +static void bsp_memory_initialize(void) { const entry *we = &config[WORKSPACE_ENTRY_INDEX]; - uintptr_t begin = we->begin; - uintptr_t end = begin + we->size; - bsp_work_area_initialize_default((void *) begin, end - begin); + _Memory_Initialize_by_size( + &_Memory_Areas[0], + (void *) we->begin, + we->size + ); +} + +RTEMS_SYSINIT_ITEM( + bsp_memory_initialize, + RTEMS_SYSINIT_MEMORY, + RTEMS_SYSINIT_ORDER_MIDDLE +); + +const Memory_Information *_Memory_Get(void) +{ + return &_Memory_Information; } |