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Subject2.4.x, drm, g400 and pci_set_master
friend of mine bought g400 on my recommendation, and unfortunately,
mga drm driver did not worked for me. I tracked it down to missing
pci_enable_device and pci_set_master in mga* driver. But even after
looking more than hour into that code I have no idea where I should
place this call, as it looks like that mga driver is completely
shielded from seeing pcidev structure :-(
Does anybody know where I should place pci_enable_device and
pci_set_master into mga code? I worked around pci_enable_device by
using matroxfb, but pci_set_master is not invoked by matroxfb, and
adding this call into matroxfb just to get mga drm driver to work does
not look correctly to me - although it is what I had done just now.
Petr Vandrovec

01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 04) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G400 Dual Head Max
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (4000ns min, 8000ns max), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: Memory at f4000000 (32-bit, prefetchable) [size=32M]
Region 1: Memory at fcffc000 (32-bit, non-prefetchable) [size=16K]
Region 2: Memory at fc000000 (32-bit, non-prefetchable) [size=8M]
Expansion ROM at 80000000 [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [f0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=31 SBA+ AGP+ 64bit- FW- Rate=x1

Linux version 2.4.1 (root@jenik) (gcc version 2.95.2 20000220 (Debian GNU/Linux)) #1 +t ˙no 6 18:14:01 CET 2001
BIOS-provided physical RAM map:
BIOS-e820: 00000000000a0000 @ 0000000000000000 (usable)
BIOS-e820: 0000000000010000 @ 00000000000f0000 (reserved)
BIOS-e820: 000000000fe9e000 @ 0000000000100000 (usable)
BIOS-e820: 0000000000062000 @ 000000000ff9e000 (reserved)
BIOS-e820: 0000000000500000 @ 00000000ffb00000 (reserved)
BIOS-e820: 0000000000010000 @ 00000000fec00000 (reserved)
BIOS-e820: 0000000000010000 @ 00000000fee00000 (reserved)
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 203M
agpgart: Trying generic Intel routines for device id: 2500
agpgart: AGP aperture is 64M @ 0xf0000000
[drm] AGP 0.99 on Intel @ 0xf0000000 64MB
[drm] Initialized mga 2.0.1 20000928 on minor 63
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