RE: radeon RV730 in iMac troubleshooting
.mrg. wrote:
>ah, i am reminded of this channge that went in recently:
> https://mail-index.netbsd.org/source-changes/2023/11/06/msg148463.html
>can you try a -current snapshot and see if it works less badly?
Yes. I tried -current at HEAD/202311170650Z and still saw the black screen at
init(8) time. :(
>> I hacked kern/init_main.c to panic on line 739 before the display goes dark
>> and the last two dmesgs are:
>>
>> pci_mem_find: void region (dev/pci/pci_map.c)
>
> hmm, this one happens when the mapping size is 0. can you post the
> output of "pcictl pciN dump -d 0", for whatever "radeon0 at pciN"
> matches the dmesg logs, for a boot that disabled radeon0.
Under 10.0_RC1, I ran and saw the following:
meadow# pcictl pci1 dump -d 0
PCI configuration registers:
Common header:
0x00: 0x94881002 0x0017 0x0300 0x00800040
Vendor Name: ATI Technologies (0x1002)
Device Name: Mobility Radeon HD 4670 (0x9488)
Command register: 0x0007
I/O space accesses: on
Memory space accesses: on
Bus mastering: on
Special cycles: off
MWI transactions: off
Palette snooping: off
Parity error checking: off
Address/data stepping: off
System error (SERR): off
Fast back-to-back transactions: off
Interrupt disable: off
Status register: 0x0010
Immediate Readiness: off
Interrupt status: inactive
Capability List support: on
66 MHz capable: off
User Definable Features (UDF) support: off
Fast back-to-back capable: off
Data parity error detected: off
DEVSEL timing: fast (0x0)
Slave signaled Target Abort: off
Master received Target Abort: off
Master received Master Abort: off
Asserted System Error (SERR): off
Parity error detected: off
Class Name: display (0x03)
Subclass Name: VGA (0x00)
Interface: 0x00
Revision ID: 0x00
BIST: 0x00
Header Type: 0x00+multifunction (0x80)
Latency Timer: 0x00
Cache Line Size: 256bytes (0x40)
Type 0 ("normal" device) header:
0x10: 0xc00c 0x 0xd0420004 0x
0x20: 0x2001 0x 0x 0x00b6106b
0x30: 0xd041 0x0050 0x 0x0100
Base address register at 0x10
type: 64-bit prefetchable memory
base: 0xc000
Base address register at 0x18
type: 64-bit nonprefetchable memory
base: 0xd042
Base address register at 0x20
type: I/O
base: 0x2000
Base address register at 0x24
not implemented
Cardbus CIS Pointer: 0x
Subsystem vendor ID: 0x106b
Subsystem ID: 0x00b6
Expansion ROM Base Address Register: 0xd041
base: 0xd040
Expansion ROM Enable: on
Validation Status: Validation not supported
Validation Details: 0x0
Capability list pointer: 0x50
Reserved @ 0x38: 0x
Maximum Latency: 0x00
Minimum Grant: 0x00
Interrupt pin: 0x01 (pin A)
Interrupt line: 0x00
Capability register at 0x50
type: 0x01 (Power Management)
Capability register at 0x58
type: 0x10 (PCI Express)
Capability register at 0xa0
type: 0x05 (MSI)
PCI Power Management Capabilities Register
Capabilities register: 0x0603
Version: 1.2
PME# clock: off
Device specific initialization: off
3.3V auxiliary current: self-powered
D1 power management state support: on
D2 power management state support: on
PME# support D0: off
PME# support D1: off
PME# support D2: off
PME# support D3 hot: off
PME# support D3 cold: off
Control/status register: 0x
Power state: D0
PCI Express reserved: off
No soft reset: off
PME# assertion: disabled
Data Select: 0
Data Scale: 0
PME# status: off
Bridge Support Extensions register: 0x00
B2/B3 support: off
Bus Power/Clock Control Enable: off
Data register: 0x00
PCI Message Signaled Interrupt
Message Control register: 0x0080
MSI Enabled: off
Multiple Message Capable: no (1 vector)
Multiple Message Enabled: off (1 vector)
64 Bit Address Capable: on
Per-Vector Masking Capable: off
Extended Message Data Capable: off
Extended Message Data Enable: off
Message Address (lower) register: 0x
Message Address (upper) register: 0x
Message Data register: 0x
PCI Express Capabilities Register
Capability register: 0x0012
Capability version: 2
Device type: Legacy PCI Express Endpoint device
Slot implemented: off
Interrupt Message Number: 0x00
Device Capabilities Register: 0x012c8fa0
Max Payload Size Supported: 128 bytes max
Phantom Functions Supported: not available
Extended Tag Field Supported: 8bit
Endpoint L0 Acceptable Latency: 2us - 4us
Endpoint L1 Acceptable Latency: More than 64us
Attention Button Present: off
re: radeon RV730 in iMac troubleshooting
ah, i am reminded of this channge that went in recently: https://mail-index.netbsd.org/source-changes/2023/11/06/msg148463.html can you try a -current snapshot and see if it works less badly? .mrg.
re: radeon RV730 in iMac troubleshooting
some random ideas/info about this, no real help yet.
Josh Moyer writes:
> I hacked kern/init_main.c to panic on line 739 before the display goes dark
> and the last two dmesgs are:
>
> pci_mem_find: void region (dev/pci/pci_map.c)
hmm, this one happens when the mapping size is 0. can you post the
output of "pcictl pciN dump -d 0", for whatever "radeon0 at pciN"
matches the dmesg logs, for a boot that disabled radeon0.
> radeon0: map 5 failed (could not find corresponding source file)
this comes from sys/external/bsd/drm2/pci/drm_pci.c:
115 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, reg, type,
116 >bm_base, >bm_size, >bm_flags) != 0) {
117 aprint_debug_dev(self, "map %u failed\n", unit);
which is basically reporting the same error. BAR5 has no size.
this may be related to it not doing a POST properly, and our code
isn't properly doing that first.. eg, radeon_r300.c:r300_init()
calls radeon_boot_test_post_card(), which will do POST if it has
not been done... though it relies upon vbios being found.
.mrg.
