Firebee/FireBee_SVN
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

renamed mmutr_miss() to mmu_map_page() (that's what its doing)

Browse Source
This commit is contained in:
Markus Fröschle
2014-01-13 21:26:42 +00:00
parent 84a63c1554
commit 71ae318675
2 changed files with 9 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
BaS_gcc/include/mmu.h
View File

@@ -35,6 +35,6 @@ extern long video_tlb;
extern long video_sbt;
extern void mmu_init(void);
extern void mmutr_miss(uint32_t address);
extern void mmu_map_page(uint32_t virt, uint32_t phys);
#endif /* _MMU_H_ */

14
BaS_gcc/sys/mmu.c
View File

@@ -447,7 +447,7 @@ bool access_exception(uint32_t pc, uint32_t format_status)
}
else /* map this page */
{
mmutr_miss(fault_address);
mmu_map_page(fault_address, fault_address);
return true;
}
}
@@ -456,16 +456,18 @@ bool access_exception(uint32_t pc, uint32_t format_status)
}
void mmutr_miss(uint32_t address)
void mmu_map_page(uint32_t virt, uint32_t phys)
{
dbg("MMU TLB MISS accessing 0x%08x\r\n", address);
dbg("%s: map virt=%p to phys=%p\r\n", virt, phys);
/* add missed page to TLB */
MCF_MMU_MMUTR = (address & 0xfff00000) | /* virtual aligned to 1M */
/*
* add page to TLB
*/
MCF_MMU_MMUTR = (virt & 0xfff00000) | /* virtual aligned to 1M */
MCF_MMU_MMUTR_SG | /* shared global */
MCF_MMU_MMUTR_V; /* valid */
MCF_MMU_MMUDR = (address & 0xfff00000) | /* physical aligned to 1M */
MCF_MMU_MMUDR = (phys & 0xfff00000) | /* physical aligned to 1M */
MCF_MMU_MMUDR_SZ(0) | /* 1 MB page size */
MCF_MMU_MMUDR_CM(0x1) | /* cacheable copyback */
MCF_MMU_MMUDR_R | /* read access enable */