RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

spcache01: Instruction cache invalidate workaround

Browse Source 
On some systems, the instruction cache invalidation is not allowed by
the MMU.
This commit is contained in:
Sebastian Huber
2017-04-05 09:55:45 +02:00
parent 1bf8b25dd7
commit 75e71b2df9
1 changed files with 41 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
testsuites/sptests/spcache01/init.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
* Copyright (c) 2014, 2017 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
@@ -16,9 +16,10 @@
#include "config.h"
#endif
#include <inttypes.h>
#include <setjmp.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <rtems.h>
#include <rtems/counter.h>
@@ -43,6 +44,10 @@ const char rtems_test_name[] = "SPCACHE 1";
CPU_STRUCTURE_ALIGNMENT static int data[1024];
static bool do_longjmp;
static jmp_buf instruction_invalidate_return_context;
static void test_data_flush_and_invalidate(void)
{
if (rtems_cache_get_data_line_size() > 0) {
@@ -179,6 +184,7 @@ static void test_timing(void)
uint64_t d[3];
uint32_t cache_level;
size_t cache_size;
bool exception;
rtems_interrupt_lock_initialize(&lock, "test");
@@ -363,7 +369,18 @@ static void test_timing(void)
d[0] = do_some_work();
d[1] = do_some_work();
rtems_cache_invalidate_multiple_instruction_lines(do_some_work, 4096);
do_longjmp = true;
if (setjmp(instruction_invalidate_return_context) == 0) {
rtems_cache_invalidate_multiple_instruction_lines(do_some_work, 4096);
exception = false;
} else {
exception = true;
}
do_longjmp = false;
d[2] = do_some_work();
rtems_interrupt_lock_release(&lock, &lock_context);
@@ -378,6 +395,12 @@ static void test_timing(void)
d[2]
);
if (exception) {
printf(
"rtems_cache_invalidate_multiple_data_lines() generated an exception\n"
);
}
rtems_interrupt_lock_destroy(&lock);
}
@@ -469,12 +492,26 @@ static void Init(rtems_task_argument arg)
rtems_test_exit(0);
}
static void fatal_extension(
rtems_fatal_source source,
bool always_set_to_false,
rtems_fatal_code error
)
{
if (source == RTEMS_FATAL_SOURCE_EXCEPTION && do_longjmp) {
_ISR_Set_level(0);
longjmp(instruction_invalidate_return_context, 1);
}
}
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_INITIAL_EXTENSIONS \
{ .fatal = fatal_extension }, \
RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE