G400 behavior different, 2.2.18->2.4.0 (was: matroxfb o
Quoted 20 lines · Chad Miller
(CC'd to lkml)
Quoted 2 lines · Petr Vandrovec
There is something wrong with your hardware. First region for G400 should be 32MB, not 16MB (even if you have 16MB G400, which I doubt).
Ooo! Here's an edited diff of 'lspci -v' under 2.2.18 versus 2.4.0:
36,41c37,42
< Flags: bus master, VGA palette snoop, medium devsel, latency 32, IRQ 10
< Memory atd6000000(32-bit, prefetchable)
---Quoted 2 lines
Flags: bus master, VGA palette snoop, medium devsel, latency 64, IRQ 10 Memory at
d8000000(32-bit, prefetchable) [size=16M]Do you think any configuration parameters could affect this? (I haven't paid as much attention to the evolution from 2.2 to 2.4 as I should've.)
Here's the diff of X' output, from 2.2.18 to 2.4.0:
Quoted 7 lines
43c43
< (--) PCI:*(1:0:0) Matrox MGA G400 AGP rev 5, Mem @ 0xd6000000/25, 0xd4000000/14, 0xd5000000/23
---Quoted 1 line
(--) PCI:*(1:0:0) Matrox MGA G400 AGP rev 5, Mem @ 0xd6000000/24, 0xd4000000/14, 0xd5000000/23
72,73d71
< (WW) ****INVALID MEM ALLOCATION**** b:0xd6000000e:0xd7ffffffcorrecting < (EE) Cannot find a replacement memory range
Output under 2.2.x is correct: '/25' for 32MB range. I have no idea why X complains about region D6000000-D7FFFFFF - can you look at '... regions behind bridge' when you boot 2.2.x (they are on 0:01.0 device, AFAIK) ? Under 2.4.x you showed that prefetchable region is D6000000-D8FFFFFF, which correctly covers 2.2.x framebuffer address (although it is not power of 2, but who knows...).
You should see D4000000-D5FFFFFF as non-prefetchable memory behind bridge, and D6000000-D7FFFFFF as prefetchable memory behind bridge.
Best regards,
Petr Vandrovec [email protected]
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/
Re: G400 behavior different, 2.2.18->2.4.0
Quoted 6 lines · Petr Vandrovec
[X] Output under 2.2.x is correct: '/25' for 32MB range. I have no idea why X complains about region D6000000-D7FFFFFF - can you look at '... regions behind bridge' when you boot 2.2.x (they are on 0:01.0 device, AFAIK) ? Under 2.4.x you showed that prefetchable region is D6000000-D8FFFFFF, which correctly covers 2.2.x framebuffer address (although it is not power of 2, but who knows...).
Here's the full 2.2 output of 'lspci -v':
#00:00.0 Host bridge: VIA Technologies, Inc. VT8371 [KX133] (rev 02)
# Flags: bus master, medium devsel, latency 0
# Memory at d0000000 (32-bit, prefetchable)
# Capabilities: [a0] AGP version 2.0
#
#00:01.0 PCI bridge: VIA Technologies, Inc. VT8371 [KX133 AGP] (prog-if \
#00 [Normal decode])
# Flags: bus master, 66Mhz, medium devsel, latency 0
# Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
# Memory behind bridge: d4000000-d6ffffff
# Prefetchable memory behind bridge: d7000000-d8ffffff
# Capabilities: [80] Power Management version 2
#
#00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] \
#(rev 22)
# Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
# Flags: bus master, stepping, medium devsel, latency 0
#
#00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 10) \
#(prog-if 8a [Master SecP PriP])
# Flags: bus master, medium devsel, latency 32
# I/O ports at e000
# Capabilities: [c0] Power Management version 2
#
#00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] \
#(rev 30)
# Flags: medium devsel
# Capabilities: [68] Power Management version 2
#
#00:09.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] \
#(rev 08)
# Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
# Flags: bus master, medium devsel, latency 32, IRQ 11
# Memory at da100000 (32-bit, non-prefetchable)
# I/O ports at ec00
# Memory at da000000 (32-bit, non-prefetchable)
# Capabilities: [dc] Power Management version 2
#
#01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP \
#(rev 05) (prog-if 00 [VGA])
# Subsystem: Matrox Graphics, Inc. Millennium G400 MAX/Dual Head 32Mb
# Flags: bus master, VGA palette snoop, medium devsel, latency 32, IRQ 10
# Memory at d6000000 (32-bit, prefetchable)
# Memory at d4000000 (32-bit, non-prefetchable)
# Memory at d5000000 (32-bit, non-prefetchable)
# Capabilities: [dc] Power Management version 2
# Capabilities: [f0] AGP version 2.0
The diff from above 2.2.18 to 2.4.0:
3,4c3,4
< Memory at d0000000 (32-bit, prefetchable)
< Capabilities: [a0] AGP version 2.0
---
Quoted 2 lines
Memory at d0000000 (32-bit, prefetchable) [size=64M] Capabilities: <available only to root>
11c11
< Capabilities: [80] Power Management version 2
---
Quoted 1 line
Capabilities: <available only to root>
19,20c19,20
< I/O ports at e000
< Capabilities: [c0] Power Management version 2
---
Quoted 2 lines
I/O ports at e000 [size=16] Capabilities: <available only to root>
24c24
< Capabilities: [68] Power Management version 2
---
Quoted 1 line
Capabilities: <available only to root>
29,32c29,33
< Memory at da100000 (32-bit, non-prefetchable)
< I/O ports at ec00
< Memory at da000000 (32-bit, non-prefetchable)
< Capabilities: [dc] Power Management version 2
---
Quoted 5 lines
Memory at da100000 (32-bit, non-prefetchable) [size=4K] I/O ports at ec00 [size=64] Memory at da000000 (32-bit, non-prefetchable) [size=1M] Expansion ROM at <unassigned> [disabled] [size=1M] Capabilities: <available only to root>
36,41c37,42
< Flags: bus master, VGA palette snoop, medium devsel, latency 32, IRQ 10
< Memory at d6000000 (32-bit, prefetchable)
< Memory at d4000000 (32-bit, non-prefetchable)
< Memory at d5000000 (32-bit, non-prefetchable)
< Capabilities: [dc] Power Management version 2
< Capabilities: [f0] AGP version 2.0
---
Quoted 6 lines
Flags: bus master, VGA palette snoop, medium devsel, latency 64, IRQ 10 Memory at d8000000 (32-bit, prefetchable) [size=16M] Memory at d4000000 (32-bit, non-prefetchable) [size=16K] Memory at d5000000 (32-bit, non-prefetchable) [size=8M] Expansion ROM at <unassigned> [disabled] [size=64K] Capabilities: <available only to root>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/