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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 14:46:46 +0300
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 14:46:46 +0300
commit2298169418f43ba5e0919762a4bab95a1227872a (patch)
tree67cf3133c7bae747ad957c68a650534105a7d8e7 /drivers/ide/pmac.c
parent130e886708d6e11f3d54e5d27c266578de56f343 (diff)
downloadlinux-2298169418f43ba5e0919762a4bab95a1227872a.tar.xz
ide: pass command to ide_map_sg()
* Set IDE_TFLAG_WRITE flag and ->rq also for ATA_CMD_PACKET commands. * Pass command to ->dma_setup method and update all its implementations accordingly. * Pass command instead of request to ide_build_sglist(), *_build_dmatable() and ide_map_sg(). While at it: * Fix scc_dma_setup() documentation + use ATA_DMA_WR define. * Rename sgiioc4_build_dma_table() to sgiioc4_build_dmatable(), change return value type to 'int' and drop unused 'ddir' argument. * Do some minor cleanups in [tx4939]ide_dma_setup(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pmac.c')
-rw-r--r--drivers/ide/pmac.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index f5b85f4c1b65..337d2d5b3028 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -404,7 +404,6 @@ kauai_lookup_timing(struct kauai_timing* table, int cycle_time)
#define IDE_WAKEUP_DELAY (1*HZ)
static int pmac_ide_init_dma(ide_hwif_t *, const struct ide_port_info *);
-static int pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq);
static void pmac_ide_selectproc(ide_drive_t *drive);
static void pmac_ide_kauai_selectproc(ide_drive_t *drive);
@@ -1422,8 +1421,7 @@ out:
* pmac_ide_build_dmatable builds the DBDMA command list
* for a transfer and sets the DBDMA channel to point to it.
*/
-static int
-pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
+static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
@@ -1431,8 +1429,8 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
struct dbdma_cmd *table;
volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
struct scatterlist *sg;
- int wr = (rq_data_dir(rq) == WRITE);
- int i = hwif->cmd.sg_nents, count = 0;
+ int wr = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
+ int i = cmd->sg_nents, count = 0;
/* DMA table is already aligned */
table = (struct dbdma_cmd *) pmif->dma_table_cpu;
@@ -1504,23 +1502,22 @@ use_pio_instead:
* Prepare a DMA transfer. We build the DMA table, adjust the timings for
* a read on KeyLargo ATA/66 and mark us as waiting for DMA completion
*/
-static int
-pmac_ide_dma_setup(ide_drive_t *drive)
+static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- struct request *rq = hwif->rq;
u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);
+ u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
- if (!pmac_ide_build_dmatable(drive, rq)) {
- ide_map_sg(drive, rq);
+ if (pmac_ide_build_dmatable(drive, cmd) == 0) {
+ ide_map_sg(drive, cmd);
return 1;
}
/* Apple adds 60ns to wrDataSetup on reads */
if (ata4 && (pmif->timings[unit] & TR_66_UDMA_EN)) {
- writel(pmif->timings[unit] + (!rq_data_dir(rq) ? 0x00800000UL : 0),
+ writel(pmif->timings[unit] + (write ? 0 : 0x00800000UL),
PMAC_IDE_REG(IDE_TIMING_CONFIG));
(void)readl(PMAC_IDE_REG(IDE_TIMING_CONFIG));
}