On Mon, Jan 16, 2012 at 11:25 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> But why don't we fix the silly legacy mode thing? Yeah, Apple's
> firmware is crap and doesn't tend to initialize things, but still - we
> should have at least an option to not use the legacy PIIX mode just
> because the chipset wasn't programmed for AHCI by the bootup.
Here's the lspci output for that device, in case anybody cares:
00:1f.2 IDE interface [0101]: Intel Corporation 6 Series/C200 Series
Chipset Family 4 port SATA IDE Controller [8086:1c01] (rev 05)
(prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Intel Corporation Device [8086:7270]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 0: I/O ports at 2168 [size=8]
Region 1: I/O ports at 217c [size=4]
Region 2: I/O ports at 2160 [size=8]
Region 3: I/O ports at 2178 [size=4]
Region 4: I/O ports at 2060 [size=16]
Region 5: I/O ports at ffe0 [size=16]
Capabilities: <access denied>
Kernel driver in use: ata_piix
00: 86 80 01 1c 07 00 b0 02 05 8f 01 01 00 00 00 00
10: 69 21 00 00 7d 21 00 00 61 21 00 00 79 21 00 00
20: 61 20 00 00 e1 ff 00 00 00 00 00 00 86 80 70 72
30: 00 00 00 00 70 00 00 00 00 00 00 00 0b 02 00 00
and I do think that resume used to be faster in v3.2 than it is even
with your patch. But maybe that's some rose-colored glasses.
I'll recompile an old kernel to check.
Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
