63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
//---
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// gint:mmu - Memory Management Unit
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//---
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#ifndef GINT_MMU
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#define GINT_MMU
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#include <gint/mpu/mmu.h>
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//---
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// SH7705 TLB
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//---
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/* tlb_addr() - get the P4 address of a TLB address entry
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@way TLB way (0..3)
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@E Entry number (0..31)
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Returns a pointer to the entry. */
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tlb_addr_t const *tlb_addr(uint way, uint E);
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/* tlb_data() - get the P4 address of a TLB data entry
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@way TLB way (0..3)
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@E Entry number (0..31)
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Returns a pointer to the entry. */
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tlb_data_t const *tlb_data(uint way, uint E);
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/* tlb_mapped_memory() - count amount of mapped memory
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This function returns the amount of mapped text and data segment memory, in
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bytes. The ranges are defined as follows:
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ROM 00300000:512k
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RAM 08100000:512k
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Other mappings are ignored. Both pointers may be NULL.
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@rom Pointer to amount of mapped ROM
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@ram Pointer to amount of mapped RAM */
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void tlb_mapped_memory(uint32_t *p_rom, uint32_t *p_ram);
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//---
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// SH7305 Unified TLB
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//---
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/* utlb_addr() - get the P4 address of a UTLB address entry
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@E Entry number (should be in range 0..63)
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Returns a pointer to the entry. */
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const utlb_addr_t *utlb_addr(uint E);
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/* utlb_data() - get the P4 address of a UTLB data entry
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@E Entry number (should be in range 0..63)
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Returns a pointer to the entry. */
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utlb_data_t const *utlb_data(uint E);
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/* utlb_mapped_memory() - count amount of mapped memory
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This function returns the amount of mapped text and data segment memory, in
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bytes. The ranges are defined as follows:
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ROM 00300000:4M
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RAM 08100000:512k
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Other mappings are ignored. Both pointers may be NULL.
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@rom Pointer to amount of mapped ROM
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@ram Pointer to amount of mapped RAM */
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void utlb_mapped_memory(uint32_t *rom, uint32_t *ram);
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#endif /* GINT_MMU */
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