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Date: Tue, 09 Dec 2008 08:53:36 +1100
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
To: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
Sergei Shtylyov <sshtylyov@...mvista.com>,
Stephen Rothwell <sfr@...b.auug.org.au>,
linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
linux-ide@...r.kernel.org
Subject: Re: linux-next: Tree for October 24 - powerpc - build failure with
!CONFIG_BLK_DEV_IDEDMA_PMAC
> > Seems like ppc people are either very busy or don't care... Oh well...
Very busy will do it :-) Among others, having a second child is a hit on
the hacking time !
In any case, I think we should contemplate removing the config option
alltogether and make DMA support built unconditionally to simplify the
mess, don't you think ?
Cheers,
Ben.
> > From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> > Subject: [PATCH] ide: build-fix for CONFIG_BLK_DEV_IDEDMA_PMAC=n
> >
> > IDE pmac host driver build fails with CONFIG_BLK_DEV_IDEDMA_PMAC=n
> > as reported by Kamalesh:
> >
> > > drivers/ide/pmac.c: In function 'pmac_ide_set_pio_mode':
> > > drivers/ide/pmac.c:527: error: implicit declaration of function 'kauai_lookup_timing'
> > > drivers/ide/pmac.c:527: error: 'shasta_pio_timings' undeclared (first use in this function)
> > > drivers/ide/pmac.c:527: error: (Each undeclared identifier is reported only once
> > > drivers/ide/pmac.c:527: error: for each function it appears in.)
> > > drivers/ide/pmac.c:534: error: 'kauai_pio_timings' undeclared (first use in this function)
> > > drivers/ide/pmac.c: In function 'pmac_ide_do_resume':
> > > drivers/ide/pmac.c:914: error: 'IDE_WAKEUP_DELAY' undeclared (first use in this function)
> > > drivers/ide/pmac.c: At top level:
> > > drivers/ide/pmac.c:1007: error: 'pmac_ide_init_dma' undeclared here (not in a function)
> > > drivers/ide/pmac.c: In function 'pmac_ide_setup_device':
> > > drivers/ide/pmac.c:1107: error: 'IDE_WAKEUP_DELAY' undeclared (first use in this function)
> > > drivers/ide/pmac.c: In function 'pmac_ide_macio_attach':
> > > drivers/ide/pmac.c:1209: error: 'pmac_ide_hwif_t' has no member named 'dma_regs'
> > > drivers/ide/pmac.c:1210: error: 'pmac_ide_hwif_t' has no member named 'dma_regs'
> > > make[2]: *** [drivers/ide/pmac.o] Error 1
> >
> > Fix it by removing the superfluous config option.
>
> Thanks for the patch, it fixes the build failure.
> >
> > Reported-by: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
> > Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> > Cc: Sergei Shtylyov <sshtylyov@...mvista.com>
> > Cc: Stephen Rothwell <sfr@...b.auug.org.au>
> > Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> > ---
> > drivers/ide/Kconfig | 14 +++-----------
> > drivers/ide/pmac.c | 30 +++---------------------------
> > 2 files changed, 6 insertions(+), 38 deletions(-)
> >
> > Index: b/drivers/ide/Kconfig
> > ===================================================================
> > --- a/drivers/ide/Kconfig
> > +++ b/drivers/ide/Kconfig
> > @@ -655,10 +655,12 @@ config BLK_DEV_CELLEB
> >
> > endif
> >
> > +# TODO: BLK_DEV_IDEDMA_PCI -> BLK_DEV_IDEDMA_SFF
> > config BLK_DEV_IDE_PMAC
> > tristate "PowerMac on-board IDE support"
> > depends on PPC_PMAC && IDE=y
> > select IDE_TIMINGS
> > + select BLK_DEV_IDEDMA_PCI
> > help
> > This driver provides support for the on-board IDE controller on
> > most of the recent Apple Power Macintoshes and PowerBooks.
> > @@ -675,16 +677,6 @@ config BLK_DEV_IDE_PMAC_ATA100FIRST
> > CD-ROM on hda. This option changes this to more natural hda for
> > hard disk and hdc for CD-ROM.
> >
> > -config BLK_DEV_IDEDMA_PMAC
> > - bool "PowerMac IDE DMA support"
> > - depends on BLK_DEV_IDE_PMAC
> > - select BLK_DEV_IDEDMA_PCI
> > - help
> > - This option allows the driver for the on-board IDE controller on
> > - Power Macintoshes and PowerBooks to use DMA (direct memory access)
> > - to transfer data to and from memory. Saying Y is safe and improves
> > - performance.
> > -
> > config BLK_DEV_IDE_AU1XXX
> > bool "IDE for AMD Alchemy Au1200"
> > depends on SOC_AU1200
> > @@ -903,7 +895,7 @@ config BLK_DEV_UMC8672
> > endif
> >
> > config BLK_DEV_IDEDMA
> > - def_bool BLK_DEV_IDEDMA_SFF || BLK_DEV_IDEDMA_PMAC || \
> > + def_bool BLK_DEV_IDEDMA_SFF || \
> > BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
> >
> > endif # IDE
> > Index: b/drivers/ide/pmac.c
> > ===================================================================
> > --- a/drivers/ide/pmac.c
> > +++ b/drivers/ide/pmac.c
> > @@ -66,7 +66,6 @@ typedef struct pmac_ide_hwif {
> > struct macio_dev *mdev;
> > u32 timings[4];
> > volatile u32 __iomem * *kauai_fcr;
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > /* Those fields are duplicating what is in hwif. We currently
> > * can't use the hwif ones because of some assumptions that are
> > * beeing done by the generic code about the kind of dma controller
> > @@ -74,8 +73,6 @@ typedef struct pmac_ide_hwif {
> > */
> > volatile struct dbdma_regs __iomem * dma_regs;
> > struct dbdma_cmd* dma_table_cpu;
> > -#endif
> > -
> > } pmac_ide_hwif_t;
> >
> > enum {
> > @@ -222,8 +219,6 @@ static const char* model_name[] = {
> > #define KAUAI_FCR_UATA_RESET_N 0x00000002
> > #define KAUAI_FCR_UATA_ENABLE 0x00000001
> >
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > -
> > /* Rounded Multiword DMA timings
> > *
> > * I gave up finding a generic formula for all controller
> > @@ -413,8 +408,6 @@ static int pmac_ide_build_dmatable(ide_d
> > static void pmac_ide_selectproc(ide_drive_t *drive);
> > static void pmac_ide_kauai_selectproc(ide_drive_t *drive);
> >
> > -#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
> > -
> > #define PMAC_IDE_REG(x) \
> > ((void __iomem *)((drive)->hwif->io_ports.data_addr + (x)))
> >
> > @@ -584,8 +577,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive
> > pmac_ide_do_update_timings(drive);
> > }
> >
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > -
> > /*
> > * Calculate KeyLargo ATA/66 UDMA timings
> > */
> > @@ -786,7 +777,6 @@ set_timings_mdma(ide_drive_t *drive, int
> > drive->name, speed & 0xf, *timings);
> > #endif
> > }
> > -#endif /* #ifdef CONFIG_BLK_DEV_IDEDMA_PMAC */
> >
> > static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
> > {
> > @@ -804,7 +794,6 @@ static void pmac_ide_set_dma_mode(ide_dr
> > tl[0] = *timings;
> > tl[1] = *timings2;
> >
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > if (speed >= XFER_UDMA_0) {
> > if (pmif->kind == controller_kl_ata4)
> > ret = set_timings_udma_ata4(&tl[0], speed);
> > @@ -817,7 +806,7 @@ static void pmac_ide_set_dma_mode(ide_dr
> > ret = -1;
> > } else
> > set_timings_mdma(drive, pmif->kind, &tl[0], &tl[1], speed);
> > -#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
> > +
> > if (ret)
> > return;
> >
> > @@ -1008,9 +997,7 @@ static const struct ide_port_info pmac_p
> > .chipset = ide_pmac,
> > .tp_ops = &pmac_tp_ops,
> > .port_ops = &pmac_ide_port_ops,
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > .dma_ops = &pmac_dma_ops,
> > -#endif
> > .host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
> > IDE_HFLAG_POST_SET_MODE |
> > IDE_HFLAG_MMIO |
> > @@ -1182,7 +1169,7 @@ pmac_ide_macio_attach(struct macio_dev *
> > pmif->regbase = regbase;
> > pmif->irq = irq;
> > pmif->kauai_fcr = NULL;
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > +
> > if (macio_resource_count(mdev) >= 2) {
> > if (macio_request_resource(mdev, 1, "ide-pmac (dma)"))
> > printk(KERN_WARNING "ide-pmac: can't request DMA "
> > @@ -1192,7 +1179,7 @@ pmac_ide_macio_attach(struct macio_dev *
> > pmif->dma_regs = ioremap(macio_resource_start(mdev, 1), 0x1000);
> > } else
> > pmif->dma_regs = NULL;
> > -#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
> > +
> > dev_set_drvdata(&mdev->ofdev.dev, pmif);
> >
> > memset(&hw, 0, sizeof(hw));
> > @@ -1300,9 +1287,7 @@ pmac_ide_pci_attach(struct pci_dev *pdev
> >
> > base = ioremap(rbase, rlen);
> > pmif->regbase = (unsigned long) base + 0x2000;
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > pmif->dma_regs = base + 0x1000;
> > -#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
> > pmif->kauai_fcr = base;
> > pmif->irq = pdev->irq;
> >
> > @@ -1434,8 +1419,6 @@ out:
> > return error;
> > }
> >
> > -#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
> > -
> > /*
> > * pmac_ide_build_dmatable builds the DBDMA command list
> > * for a transfer and sets the DBDMA channel to point to it.
> > @@ -1723,13 +1706,6 @@ static int __devinit pmac_ide_init_dma(i
> >
> > return 0;
> > }
> > -#else
> > -static int __devinit pmac_ide_init_dma(ide_hwif_t *hwif,
> > - const struct ide_port_info *d)
> > -{
> > - return -EOPNOTSUPP;
> > -}
> > -#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
> >
> > module_init(pmac_ide_probe);
> >
> > �
>
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