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path: root/drivers/ide/pmac.c
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Diffstat (limited to 'drivers/ide/pmac.c')
-rw-r--r--drivers/ide/pmac.c32
1 files changed, 8 insertions, 24 deletions
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 74625e821a43..2bfcfedaa076 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);
@@ -1422,17 +1421,16 @@ 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 =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
struct dbdma_cmd *table;
- int i, count = 0;
volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
struct scatterlist *sg;
- int wr = (rq_data_dir(rq) == WRITE);
+ 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;
@@ -1442,11 +1440,6 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
while (readl(&dma->status) & RUN)
udelay(1);
- hwif->sg_nents = i = ide_build_sglist(drive, rq);
-
- if (!i)
- return 0;
-
/* Build DBDMA commands list */
sg = hwif->sg_table;
while (i && sg_dma_len(sg)) {
@@ -1509,23 +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));
}
@@ -1535,13 +1527,6 @@ pmac_ide_dma_setup(ide_drive_t *drive)
return 0;
}
-static void
-pmac_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
-{
- /* issue cmd to drive */
- ide_execute_command(drive, command, &ide_dma_intr, 2*WAIT_CMD, NULL);
-}
-
/*
* Kick the DMA controller into life after the DMA command has been issued
* to the drive.
@@ -1662,7 +1647,6 @@ pmac_ide_dma_lost_irq (ide_drive_t *drive)
static const struct ide_dma_ops pmac_dma_ops = {
.dma_host_set = pmac_ide_dma_host_set,
.dma_setup = pmac_ide_dma_setup,
- .dma_exec_cmd = pmac_ide_dma_exec_cmd,
.dma_start = pmac_ide_dma_start,
.dma_end = pmac_ide_dma_end,
.dma_test_irq = pmac_ide_dma_test_irq,