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pcidevice: fix expansion ROM mapping.

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This commit is contained in:
Maxim Poliakovski 2022-08-20 12:51:08 +02:00
parent 5220b03f0f
commit 32b8c8ed43
3 changed files with 11 additions and 5 deletions
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12
devices/common/pci/pcidevice.cpp
View File

@ -136,7 +136,7 @@ void PCIDevice::pci_cfg_write(uint32_t reg_offs, uint32_t value, uint32_t size)
} else {
this->exp_rom_bar = (data & 0xFFFFF801UL);
if (this->exp_rom_bar & 1) {
this->map_exp_rom_mem(this->exp_rom_bar & 0xFFFFF800UL);
this->map_exp_rom_mem();
} else {
LOG_F(WARNING, "%s: unmapping of expansion ROM not implemented yet",
this->pci_name.c_str());
@ -235,9 +235,15 @@ void PCIDevice::set_bar_value(int bar_num, uint32_t value)
this->pci_notify_bar_change(bar_num);
}
void PCIDevice::map_exp_rom_mem(uint32_t rom_addr)
void PCIDevice::map_exp_rom_mem()
{
uint32_t rom_addr, rom_size;
rom_addr = this->exp_rom_bar & 0xFFFFF800UL;
rom_size = ~this->exp_bar_cfg + 1;
if (!this->exp_rom_addr || this->exp_rom_addr != rom_addr) {
this->host_instance->pci_register_mmio_region(rom_addr, 0x10000, this);
this->host_instance->pci_register_mmio_region(rom_addr, rom_size, this);
this->exp_rom_addr = rom_addr;
}
}

2
devices/common/pci/pcidevice.h
View File

@ -101,7 +101,7 @@ public:
protected:
void do_bar_sizing(int bar_num);
void set_bar_value(int bar_num, uint32_t value);
void map_exp_rom_mem(uint32_t rom_addr);
void map_exp_rom_mem();
std::string pci_name; // human-readable device name
PCIHost* host_instance; // host bridge instance to call back

2
devices/video/atimach64gx.cpp
View File

@ -217,7 +217,7 @@ uint32_t AtiMach64Gx::read(uint32_t rgn_start, uint32_t offset, int size)
}
// memory mapped expansion ROM region
if (rgn_start >= this->exp_rom_addr && offset < this->exp_rom_size) {
if (rgn_start == this->exp_rom_addr && offset < this->exp_rom_size) {
return read_mem(&this->exp_rom_data[offset], size);
}