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Log PCI config write values MSB first 

Writes to config registers of invalid or non-existent PCI devices are logged. They should be logged with most significant byte first.
The values enter the methods in reverse byte order so they need to be byte swapped (except when size is 1) for logging.
The result is that this command in Open Firmware:
`12345678 16800 config-l!`
will log this:
`VCI0 err: write attempt to non-existing VCI device ??:0d.0 @00.l = 12345678`
This commit is contained in:
joevt 2022-09-02 01:42:52 -07:00 committed by Maxim Poliakovski
parent 072d5ae330
commit 09d374f626
4 changed files with 19 additions and 10 deletions
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12
devices/common/pci/bandit.cpp
View File

@ -196,7 +196,7 @@ void Bandit::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size
LOG_F(
WARNING, "%s: write config cycle type 1 not supported yet %02x:%02x.%x @%02x.%c = %0*x",
this->name.c_str(), bus_num, dev_num, fun_num, reg_offs + (offset & 3),
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
return;
}
@ -208,7 +208,7 @@ void Bandit::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size
ERROR, "%s: write invalid IDSEL=0x%X config:0x%X ??:??.%x? @%02x?.%c = %0*x",
this->name.c_str(), idsel, this->config_addr,
fun_num, reg_offs + (offset & 3),
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
return;
}
@ -225,7 +225,7 @@ void Bandit::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size
LOG_F(
ERROR, "%s err: write attempt to non-existing PCI device ??:%02x.%x @%02x.%c = %0*x",
this->name.c_str(), dev_num, fun_num, reg_offs + (offset & 3),
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
}
} else {
@ -358,7 +358,7 @@ void Chaos::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size)
LOG_F(
WARNING, "%s: write config cycle type 1 not supported yet %02x:%02x.%x @%02x.%c = %0*x",
this->name.c_str(), bus_num, dev_num, fun_num, reg_offs + (offset & 3),
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
return;
}
@ -370,7 +370,7 @@ void Chaos::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size)
ERROR, "%s: write invalid IDSEL=0x%X config:0x%X ??:??.%x? @%02x?.%c = %0*x",
this->name.c_str(), idsel, this->config_addr,
fun_num, reg_offs + (offset & 3),
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
return;
}
@ -382,7 +382,7 @@ void Chaos::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size)
LOG_F(
ERROR, "%s err: write attempt to non-existing VCI device ??:%02x.%x @%02x.%c = %0*x",
this->name.c_str(), dev_num, fun_num, reg_offs + (offset & 3),
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
}
} else {

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

@ -156,7 +156,7 @@ void PCIDevice::pci_cfg_write(uint32_t reg_offs, uint32_t value, uint32_t size)
LOG_F(
WARNING, "%s: attempt to write to reserved/unimplemented register @%02x.%c = %0*x",
this->pci_name.c_str(), reg_offs,
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, value
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size, size * 2, flip_sized(value, size)
);
}
}

6
devices/memctrl/mpc106.cpp
View File

@ -169,8 +169,8 @@ void MPC106::pci_write(uint32_t value, uint32_t size) {
"%s err: write attempt to non-local PCI bus, config_addr = %x %02x:%02x.%x @%02x.%c = %0*x",
this->name.c_str(), this->config_addr, bus_num, dev_num, fun_num, reg_offs,
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size,
size * 2, value
);
size * 2, flip_sized(value, size)
);
return;
}
@ -185,7 +185,7 @@ void MPC106::pci_write(uint32_t value, uint32_t size) {
"%s err: write attempt to non-existing PCI device %02x:%02x.%x @%02x.%c = %0*x",
this->name.c_str(), bus_num, dev_num, fun_num, reg_offs,
size == 4 ? 'l' : size == 2 ? 'w' : size == 1 ? 'b' : '0' + size,
size * 2, value
size * 2, flip_sized(value, size)
);
}
}

9
memaccess.h
View File

@ -177,6 +177,15 @@ inline uint32_t read_mem_rev(const uint8_t* buf, uint32_t size) {
}
}
inline uint32_t flip_sized(uint32_t value, uint32_t size) {
switch (size) {
case 1: return value;
case 2: return BYTESWAP_16(value);
case 4: return BYTESWAP_32(value);
default: LOG_F(ERROR, "flip_sized: invalid size %d!", size); return 0xffffffff;
}
}
/* write the specified value of the specified size to memory pointed
to by addr, perform necessary byte swapping so that the byte order
of the destination remains unchanged. */