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dbdma: noop incomplete LOAD_QUAD & STORE_QUAD.

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This commit is contained in:
Maxim Poliakovski 2023-09-18 20:20:25 +02:00
parent 5e32b599d6
commit a69763c6de
3 changed files with 5 additions and 18 deletions
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11
cpu/ppc/ppcmmu.cpp
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@ -331,17 +331,6 @@ uint8_t* mmu_get_dma_mem(uint32_t addr, uint32_t size, bool* is_writable)
}
}
void mmu_dma_store_quad(uint32_t addr, uint32_t value) {
mmu_write_vmem<uint32_t>(ppc_effective_address, value);
}
uint8_t* mmu_dma_load_quad(uint32_t addr) {
uint32_t ret_value = mmu_read_vmem<uint32_t>(addr);
uint8_t ret_array[4] = {(uint8_t)ret_value, (uint8_t)(ret_value >> 8), (uint8_t)(ret_value >> 16), (uint8_t)(ret_value >> 24)};
return ret_array;
}
// primary ITLB for all MMU modes
static std::array<TLBEntry, TLB_SIZE> itlb1_mode1;
static std::array<TLBEntry, TLB_SIZE> itlb1_mode2;

2
cpu/ppc/ppcmmu.h
View File

@ -107,8 +107,6 @@ extern std::function<void(uint32_t bat_reg)> ibat_update;
extern std::function<void(uint32_t bat_reg)> dbat_update;
extern uint8_t* mmu_get_dma_mem(uint32_t addr, uint32_t size, bool* is_writable);
extern void mmu_dma_store_quad(uint32_t addr, uint32_t value);
extern uint8_t* mmu_dma_load_quad(uint32_t addr);
extern void mmu_change_mode(void);
extern void mmu_pat_ctx_changed();

10
devices/common/dbdma.cpp
View File

@ -118,19 +118,19 @@ uint8_t DMAChannel::interpret_cmd() {
case DBDMA_Cmd::STORE_QUAD:
if (cmd_struct.cmd_key != 6) {
LOG_F(ERROR, "Illegal key value for STORE_QUAD");
}
}
else {
if (cmd_struct.req_count & 0x4) {
cmd_struct.req_count = 4;
}
}
else if (cmd_struct.req_count & 0x2) {
cmd_struct.req_count = 2;
}
}
else {
cmd_struct.req_count = 1;
}
mmu_dma_store_quad(cmd_struct.address, cmd_struct.cmd_arg);
//mmu_dma_store_quad(cmd_struct.address, cmd_struct.cmd_arg);
this->queue_len = 4;
this->cmd_in_progress = true;
}
@ -139,7 +139,7 @@ uint8_t DMAChannel::interpret_cmd() {
if (cmd_struct.cmd_key != 6) {
LOG_F(ERROR, "Illegal key value for LOAD_QUAD");
} else {
this->queue_data = mmu_dma_load_quad(cmd_struct.address);
//this->queue_data = mmu_dma_load_quad(cmd_struct.address);
this->queue_len = 4;
this->cmd_in_progress = true;
}