Messages in this thread | | | From | Linus Torvalds <> | Date | Mon, 16 Jan 2012 11:29:10 -0800 | Subject | Re: [git patches] libata updates for 3.3 |
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On Mon, Jan 16, 2012 at 11:25 AM, Linus Torvalds <torvalds@linux-foundation.org> 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
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