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Diffstat (limited to 'src/devices/machine/sun4c_mmu.h')
-rw-r--r--src/devices/machine/sun4c_mmu.h80
1 files changed, 47 insertions, 33 deletions
diff --git a/src/devices/machine/sun4c_mmu.h b/src/devices/machine/sun4c_mmu.h
index b85c9981f18..87db83ec4a7 100644
--- a/src/devices/machine/sun4c_mmu.h
+++ b/src/devices/machine/sun4c_mmu.h
@@ -30,6 +30,7 @@ public:
set_seg_entry_mask(seg_entry_mask);
set_page_entry_mask(page_entry_mask);
set_cache_mask(cache_mask);
+ set_cache_line_size(16);
}
template <typename T> void set_cpu(T &&cpu_tag) { m_cpu.set_tag(std::forward<T>(cpu_tag)); }
@@ -47,6 +48,7 @@ public:
void set_seg_entry_mask(uint32_t seg_entry_mask) { m_seg_entry_mask = seg_entry_mask; }
void set_page_entry_mask(uint32_t page_entry_mask) { m_page_entry_mask = page_entry_mask; }
void set_cache_mask(uint32_t cache_mask) { m_cache_mask = cache_mask; }
+ void set_cache_line_size(uint32_t cache_line_size) { m_cache_line_size = cache_line_size; }
enum insn_data_mode
{
@@ -64,50 +66,50 @@ public:
uint32_t parity_r(uint32_t offset, uint32_t mem_mask);
void parity_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
- // sparc_mmu_device overrides
+ // sparc_mmu_interface overrides
uint32_t fetch_insn(const bool supervisor, const uint32_t offset) override;
- uint32_t read_asi(uint8_t asi, uint32_t offset, uint32_t mem_mask) override;
- void write_asi(uint8_t asi, uint32_t offset, uint32_t data, uint32_t mem_mask) override;
void set_host(sparc_mmu_host_interface *host) override { m_host = host; }
+ uint32_t context_reg_r(uint32_t offset, uint32_t mem_mask);
+ void context_reg_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t system_enable_r(uint32_t offset, uint32_t mem_mask);
+ void system_enable_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t bus_error_r(uint32_t offset, uint32_t mem_mask);
+ void bus_error_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t cache_tag_r(uint32_t offset, uint32_t mem_mask);
+ void cache_tag_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t cache_data_r(uint32_t offset, uint32_t mem_mask);
+ void cache_data_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t uart_r(uint32_t offset, uint32_t mem_mask);
+ void uart_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t segment_map_r(uint32_t offset, uint32_t mem_mask);
+ void segment_map_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ uint32_t page_map_r(uint32_t offset, uint32_t mem_mask);
+ void page_map_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+
+ void segment_flush_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ void page_flush_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ void context_flush_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+
+ void hw_segment_flush_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ void hw_page_flush_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ void hw_context_flush_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+ void hw_flush_all_w(uint32_t offset, uint32_t data, uint32_t mem_mask);
+
protected:
sun4_mmu_base_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
- struct page_entry
- {
- uint32_t valid;
- uint32_t writable;
- uint32_t supervisor;
- uint32_t uncached;
- uint32_t accessed;
- uint32_t modified;
- uint32_t page;
- uint8_t type;
- uint8_t pad[3];
- };
-
- static const device_timer_id TIMER_RESET = 0;
-
virtual void device_start() override;
virtual void device_reset() override;
- virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
+
+ TIMER_CALLBACK_MEMBER(reset_off_tick);
uint32_t page_entry_to_uint(uint32_t index);
void merge_page_entry(uint32_t index, uint32_t data, uint32_t mem_mask);
- bool cache_fetch(page_entry &entry, uint32_t vaddr, uint32_t paddr, uint32_t &cached_data);
- void segment_flush_w(const uint32_t vaddr);
- void context_flush_w(const uint32_t vaddr);
- void page_flush_w(const uint32_t vaddr);
- uint32_t system_r(const uint32_t offset, const uint32_t mem_mask);
- void system_w(const uint32_t offset, const uint32_t data, const uint32_t mem_mask);
- uint32_t segment_map_r(const uint32_t offset, const uint32_t mem_mask);
- void segment_map_w(const uint32_t offset, const uint32_t data, const uint32_t mem_mask);
- uint32_t page_map_r(const uint32_t offset, const uint32_t mem_mask);
- void page_map_w(const uint32_t offset, const uint32_t data, const uint32_t mem_mask);
void type0_timeout_r(const uint32_t offset);
void type0_timeout_w(const uint32_t offset);
- void l2p_command(int ref, const std::vector<std::string> &params);
+ void l2p_command(const std::vector<std::string_view> &params);
enum
{
@@ -128,6 +130,19 @@ protected:
PM_MODIFIED = 0x01000000 // modified flag
};
+ struct page_entry
+ {
+ uint32_t valid;
+ uint32_t writable;
+ uint32_t supervisor;
+ uint32_t uncached;
+ uint32_t accessed;
+ uint32_t modified;
+ uint32_t page;
+ uint8_t type;
+ uint8_t pad[3];
+ };
+
required_device<cpu_device> m_cpu;
required_device<ram_device> m_ram;
required_memory_region m_rom;
@@ -154,7 +169,7 @@ protected:
uint32_t m_cache_context;
uint8_t m_system_enable;
bool m_fetch_bootrom;
- uint32_t m_buserr[16];
+ uint32_t m_buserr[4];
uint32_t m_type1_offset;
uint32_t m_parity_err_reg;
uint32_t m_memory_err_reg;
@@ -174,12 +189,11 @@ protected:
uint32_t m_seg_entry_mask;
uint32_t m_page_entry_mask;
uint32_t m_cache_mask;
- uint32_t m_cache_tag_mask;
+ uint32_t m_cache_line_size;
uint32_t m_ram_set_mask[4]; // Used for mirroring within 4 megabyte sets
uint32_t m_ram_set_base[4];
uint32_t m_populated_ram_words;
emu_timer *m_reset_timer;
- bool m_log_mem;
};
class sun4_mmu_device : public sun4_mmu_base_device