Hello All, As you know I have a laptop that has amd radeon r7 m265 graphics device (it seems there are two actually; 0x1002/0x1309 and 0x1002/0x6604). My kernel panics when I do enable radeon, not finding any ROM.
I am using netbsd 9.2 amd64 and am using UEFI boot. After reading kern/49964 (which had the same panic with my system - radeon_get_bios does not find a bios) I did some testing. Here is what I have so far. The memory at 0xC0000 (size 131072) starts with 0xff 0xff. So this means that there is no valid expansion ROM here. This is what I have done to get this dump (dd if=/dev/mem of=/tmp/bios bs=1 iseek=786432 count=131072) and to view it I used (hexdump -C /tmp/bios). If there is anything that looks wrong let me know. Then I have dumped the data on the two PCI devices mentioned above. To arrive at these I did use (pcictl pci0 dump -d 1 -f 0 and pcictl pci1 dump -d 0 -f 0). Here is the outcome. The device on pci0:1:0 is as such PCI configuration registers: Common header: 0x00: 0x13091002 0x00100007 0x03000000 0x00800010 Vendor Name: ATI Technologies (0x1002) Device ID: 0x1309 Command register: 0x0007 ..... Type 0 ("normal" device) header: 0x10: 0xe000000c 0x00000000 0xf000000c 0x00000000 0x20: 0x00004001 0xf0b00000 0x00000000 0x08641025 0x30: 0xfffe0001 0x00000048 0x00000000 0x00000100 Base address register at 0x10 type: 64-bit prefetchable memory base: 0x00000000e0000000 Base address register at 0x18 type: 64-bit prefetchable memory base: 0x00000000f0000000 Base address register at 0x20 type: I/O base: 0x00004000 Base address register at 0x24 type: 32-bit nonprefetchable memory base: 0xf0b00000 Cardbus CIS Pointer: 0x00000000 Subsystem vendor ID: 0x1025 Subsystem ID: 0x0864 Expansion ROM Base Address Register: 0xfffe0001 base: 0xfffe0000 Expansion ROM Enable: on Validation Status: Validation not supported Validation Details: 0x0 Capability list pointer: 0x48 Reserved @ 0x38: 0x00000000 Maximum Latency: 0x00 Minimum Grant: 0x00 Interrupt pin: 0x01 (pin A) Interrupt line: 0x00 and for the device on pci1:0:0 has this information PCI configuration registers: Common header: 0x00: 0x66041002 0x00100007 0x03800000 0x00000010 Vendor Name: ATI Technologies (0x1002) Device ID: 0x6604 Command register: 0x0007 ....... Type 0 ("normal" device) header: 0x10: 0xd000000c 0x00000000 0xf0a00004 0x00000000 0x20: 0x00003001 0x00000000 0x00000000 0x086a1025 0x30: 0xfffe0000 0x00000048 0x00000000 0x00000100 Base address register at 0x10 type: 64-bit prefetchable memory base: 0x00000000d0000000 Base address register at 0x18 type: 64-bit nonprefetchable memory base: 0x00000000f0a00000 Base address register at 0x20 type: I/O base: 0x00003000 Base address register at 0x24 not implemented Cardbus CIS Pointer: 0x00000000 Subsystem vendor ID: 0x1025 Subsystem ID: 0x086a Expansion ROM Base Address Register: 0xfffe0000 base: 0xfffe0000 Expansion ROM Enable: off Validation Status: Validation not supported Validation Details: 0x0 Capability list pointer: 0x48 Reserved @ 0x38: 0x00000000 Maximum Latency: 0x00 Minimum Grant: 0x00 Interrupt pin: 0x01 (pin A) Interrupt line: 0x00 The ROM in the pci0:1:0 has the PCI ROM enabled but the ROM address is not correct i think. Would you have any ideas on where the expansion ROM might be found? Whereelse might I look? Since I am using UEFI, can this ROM be located in the UEFI boot directories somewhere? Any pointers, any information or any ideas would be appreciated. Thanks in advance. Best Regards, Riza Dindir