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Prepare some api for DM (#7894)

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Signed-off-by: GuEe-GUI <GuEe-GUI@github.com>
This commit is contained in:
GUI
2023-08-02 12:48:24 +08:00
committed by GitHub
parent f5fe1a5d7b
commit d3417aa0d7
10 changed files with 65 additions and 36 deletions
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libcpu/aarch64/common/cpuport.h
+11 -21
View File
@@ -23,30 +23,20 @@ typedef union {
} rt_hw_spinlock_t;
#endif
rt_inline void rt_hw_isb(void)
{
__asm__ volatile ("isb":::"memory");
}
#define rt_hw_barrier(cmd, ...) \
__asm__ volatile (RT_STRINGIFY(cmd) " "RT_STRINGIFY(__VA_ARGS__):::"memory")
rt_inline void rt_hw_dmb(void)
{
__asm__ volatile ("dmb ish":::"memory");
}
#define rt_hw_isb() rt_hw_barrier(isb)
#define rt_hw_dmb() rt_hw_barrier(dmb, ish)
#define rt_hw_wmb() rt_hw_barrier(dmb, ishst)
#define rt_hw_rmb() rt_hw_barrier(dmb, ishld)
#define rt_hw_dsb() rt_hw_barrier(dsb, ish)
rt_inline void rt_hw_wmb(void)
{
__asm__ volatile ("dmb ishst":::"memory");
}
#define rt_hw_wfi() rt_hw_barrier(wfi)
#define rt_hw_wfe() rt_hw_barrier(wfe)
#define rt_hw_sev() rt_hw_barrier(sev)
rt_inline void rt_hw_rmb(void)
{
__asm__ volatile ("dmb ishld":::"memory");
}
rt_inline void rt_hw_dsb(void)
{
__asm__ volatile ("dsb ish":::"memory");
}
#define rt_hw_cpu_relax() rt_hw_barrier(yield)
void _thread_start(void);
#endif /*CPUPORT_H__*/
libcpu/aarch64/common/mmu.c
+25
View File
@@ -590,6 +590,31 @@ static int _map_single_page_2M(unsigned long *lv0_tbl, unsigned long va,
return 0;
}
void *rt_ioremap_early(void *paddr, size_t size)
{
size_t count;
static void *tbl = RT_NULL;
if (!size)
{
return RT_NULL;
}
if (!tbl)
{
tbl = rt_hw_mmu_tbl_get();
}
count = (size + ARCH_SECTION_MASK) >> ARCH_SECTION_SHIFT;
while (count --> 0)
{
_map_single_page_2M(tbl, (unsigned long)paddr, (unsigned long)paddr, MMU_MAP_K_DEVICE);
}
return paddr;
}
static int _init_map_2M(unsigned long *lv0_tbl, unsigned long va,
unsigned long pa, unsigned long count,
unsigned long attr)