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fixed: compare virtual address instead of physical in lookup_mapping()

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This commit is contained in:
Markus Fröschle
2014-01-21 12:43:32 +00:00
parent f990868112
commit b9944c1186
1 changed files with 17 additions and 17 deletions
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34
BaS_gcc/sys/mmu.c
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@@ -257,14 +257,14 @@ static struct mmu_mapping memory_map[] =
0,
0x800,
MMU_PAGE_SIZE_1K,
{CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
0x800,
0x800,
0x800,
MMU_PAGE_SIZE_1K,
{CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
/* when the first 4k are filled with 1k pages, we can switch to 8k pages */
@@ -272,7 +272,7 @@ static struct mmu_mapping memory_map[] =
0x1000,
0xff000,
MMU_PAGE_SIZE_8K,
{CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
/* arrived at a 1Meg border, we can switch to 1Meg pages */
@@ -280,7 +280,7 @@ static struct mmu_mapping memory_map[] =
0x100000,
0xc00000,
MMU_PAGE_SIZE_1M,
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
/* Falcon video memory. Needs special care */
@@ -288,7 +288,7 @@ static struct mmu_mapping memory_map[] =
0x60d00000,
0x100000,
MMU_PAGE_SIZE_8K,
{ CACHE_WRITETHROUGH, SV_USER, SCA_PAGE_ID, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_USER, SCA_PAGE_ID, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
/* ROM */
@@ -296,7 +296,7 @@ static struct mmu_mapping memory_map[] =
0xe00000,
0x100000,
MMU_PAGE_SIZE_1M,
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_USER, 0, ACCESS_READ | ACCESS_EXECUTE },
},
{
/* MBAR */
@@ -312,7 +312,7 @@ static struct mmu_mapping memory_map[] =
RAMBAR0_ADDRESS,
(uint32_t) _RAMBAR0_SIZE,
MMU_PAGE_SIZE_1K,
{ CACHE_WRITETHROUGH, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
/* RAMBAR1 */
@@ -320,7 +320,7 @@ static struct mmu_mapping memory_map[] =
RAMBAR1_ADDRESS,
(uint32_t) _RAMBAR1_SIZE,
MMU_PAGE_SIZE_1K,
{ CACHE_WRITETHROUGH, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE},
{ CACHE_WRITETHROUGH, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
},
{
/* SYSTEM SRAM */
@@ -347,7 +347,7 @@ static struct mmu_mapping memory_map[] =
{ CACHE_NOCACHE_PRECISE, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE },
},
{
/* the same, but different mapping */
/* the same, but different virtual address */
(uint32_t) 0x00f00000,
(uint32_t) 0xfff00000,
(uint32_t) 0x100000,
@@ -358,7 +358,7 @@ static struct mmu_mapping memory_map[] =
static int num_mmu_maps = sizeof(memory_map) / sizeof(struct mmu_mapping);
static struct mmu_mapping *lookup_mapping(uint32_t address)
static struct mmu_mapping *lookup_mapping(uint32_t virt)
{
int i;
@@ -368,7 +368,7 @@ static struct mmu_mapping *lookup_mapping(uint32_t address)
for (i = 0; i < num_mmu_maps; i++)
{
if (address >= memory_map[i].phys && address <= memory_map[i].phys + memory_map[i].length - 1)
if (virt >= memory_map[i].virt && virt <= memory_map[i].virt + memory_map[i].length - 1)
return &memory_map[i];
}
return NULL;
@@ -459,22 +459,22 @@ void mmu_map_page(uint32_t virt, uint32_t phys, uint32_t map_size, struct map_fl
*/
MCF_MMU_MMUTR = virt | /* virtual address */
MCF_MMU_MMUTR_ID(flags.page_id) |
MCF_MMU_MMUTR_SG | /* shared global */
MCF_MMU_MMUTR_V; /* valid */
MCF_MMU_MMUTR_SG | /* shared global */
MCF_MMU_MMUTR_V; /* valid */
MCF_MMU_MMUDR = phys | /* physical address */
MCF_MMU_MMUDR_SZ(map_size) | /* 1 MB page size */
MCF_MMU_MMUDR_SZ(map_size) | /* 1 MB page size */
MCF_MMU_MMUDR_CM(flags.cache_mode) |
(flags.access & ACCESS_READ ? MCF_MMU_MMUDR_R : 0) | /* read access enable */
(flags.access & ACCESS_WRITE ? MCF_MMU_MMUDR_W : 0) | /* write access enable */
(flags.access & ACCESS_EXECUTE ? MCF_MMU_MMUDR_X : 0); /* execute access enable */
MCF_MMU_MMUOR = MCF_MMU_MMUOR_ACC | /* access TLB, data */
MCF_MMU_MMUOR_UAA; /* update allocation address field */
MCF_MMU_MMUOR_UAA; /* update allocation address field */
MCF_MMU_MMUOR = MCF_MMU_MMUOR_ITLB | /* instruction */
MCF_MMU_MMUOR_ACC | /* access TLB */
MCF_MMU_MMUOR_UAA; /* update allocation address field */
MCF_MMU_MMUOR_ACC | /* access TLB */
MCF_MMU_MMUOR_UAA; /* update allocation address field */
dbg("%s: mapped virt=%p to phys=%p\r\n", __FUNCTION__, virt, phys);
}