diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-10-13 10:26:27 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-10-16 06:00:38 +0300 |
| commit | 3f9295b65ea44194252d60376036a3618d822152 (patch) | |
| tree | c08aa217d9c95b10fec4d1b788360cfcfc360afb /drivers/scsi/zorro_esp.c | |
| parent | 44b1b4d24b2d65134efeccb3cc2341c61227f0f9 (diff) | |
| download | linux-3f9295b65ea44194252d60376036a3618d822152.tar.xz | |
scsi: esp_scsi: move dma mapping into the core code
Except for the mac_esp driver, which uses PIO or pseudo DMA, all drivers
share the same dma mapping calls. Move the dma mapping into the core
code using the scsi_dma_map / scsi_dma_unmap helpers, with a special
identify mapping variant triggered off a new ESP_FLAG_NO_DMA_MAP flag
for mac_esp.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/zorro_esp.c')
| -rw-r--r-- | drivers/scsi/zorro_esp.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/drivers/scsi/zorro_esp.c b/drivers/scsi/zorro_esp.c index 274a873bd2d5..40d04affb5d3 100644 --- a/drivers/scsi/zorro_esp.c +++ b/drivers/scsi/zorro_esp.c @@ -182,30 +182,6 @@ static u8 zorro_esp_read8(struct esp *esp, unsigned long reg) return readb(esp->regs + (reg * 4UL)); } -static dma_addr_t zorro_esp_map_single(struct esp *esp, void *buf, - size_t sz, int dir) -{ - return dma_map_single(esp->dev, buf, sz, dir); -} - -static int zorro_esp_map_sg(struct esp *esp, struct scatterlist *sg, - int num_sg, int dir) -{ - return dma_map_sg(esp->dev, sg, num_sg, dir); -} - -static void zorro_esp_unmap_single(struct esp *esp, dma_addr_t addr, - size_t sz, int dir) -{ - dma_unmap_single(esp->dev, addr, sz, dir); -} - -static void zorro_esp_unmap_sg(struct esp *esp, struct scatterlist *sg, - int num_sg, int dir) -{ - dma_unmap_sg(esp->dev, sg, num_sg, dir); -} - static int zorro_esp_irq_pending(struct esp *esp) { /* check ESP status register; DMA has no status reg. */ @@ -739,10 +715,6 @@ static int zorro_esp_dma_error(struct esp *esp) static const struct esp_driver_ops blz1230_esp_ops = { .esp_write8 = zorro_esp_write8, .esp_read8 = zorro_esp_read8, - .map_single = zorro_esp_map_single, - .map_sg = zorro_esp_map_sg, - .unmap_single = zorro_esp_unmap_single, - .unmap_sg = zorro_esp_unmap_sg, .irq_pending = zorro_esp_irq_pending, .dma_length_limit = zorro_esp_dma_length_limit, .reset_dma = zorro_esp_reset_dma, @@ -755,10 +727,6 @@ static const struct esp_driver_ops blz1230_esp_ops = { static const struct esp_driver_ops blz1230II_esp_ops = { .esp_write8 = zorro_esp_write8, .esp_read8 = zorro_esp_read8, - .map_single = zorro_esp_map_single, - .map_sg = zorro_esp_map_sg, - .unmap_single = zorro_esp_unmap_single, - .unmap_sg = zorro_esp_unmap_sg, .irq_pending = zorro_esp_irq_pending, .dma_length_limit = zorro_esp_dma_length_limit, .reset_dma = zorro_esp_reset_dma, @@ -771,10 +739,6 @@ static const struct esp_driver_ops blz1230II_esp_ops = { static const struct esp_driver_ops blz2060_esp_ops = { .esp_write8 = zorro_esp_write8, .esp_read8 = zorro_esp_read8, - .map_single = zorro_esp_map_single, - .map_sg = zorro_esp_map_sg, - .unmap_single = zorro_esp_unmap_single, - .unmap_sg = zorro_esp_unmap_sg, .irq_pending = zorro_esp_irq_pending, .dma_length_limit = zorro_esp_dma_length_limit, .reset_dma = zorro_esp_reset_dma, @@ -787,10 +751,6 @@ static const struct esp_driver_ops blz2060_esp_ops = { static const struct esp_driver_ops cyber_esp_ops = { .esp_write8 = zorro_esp_write8, .esp_read8 = zorro_esp_read8, - .map_single = zorro_esp_map_single, - .map_sg = zorro_esp_map_sg, - .unmap_single = zorro_esp_unmap_single, - .unmap_sg = zorro_esp_unmap_sg, .irq_pending = cyber_esp_irq_pending, .dma_length_limit = zorro_esp_dma_length_limit, .reset_dma = zorro_esp_reset_dma, @@ -803,10 +763,6 @@ static const struct esp_driver_ops cyber_esp_ops = { static const struct esp_driver_ops cyberII_esp_ops = { .esp_write8 = zorro_esp_write8, .esp_read8 = zorro_esp_read8, - .map_single = zorro_esp_map_single, - .map_sg = zorro_esp_map_sg, - .unmap_single = zorro_esp_unmap_single, - .unmap_sg = zorro_esp_unmap_sg, .irq_pending = zorro_esp_irq_pending, .dma_length_limit = zorro_esp_dma_length_limit, .reset_dma = zorro_esp_reset_dma, @@ -819,10 +775,6 @@ static const struct esp_driver_ops cyberII_esp_ops = { static const struct esp_driver_ops fastlane_esp_ops = { .esp_write8 = zorro_esp_write8, .esp_read8 = zorro_esp_read8, - .map_single = zorro_esp_map_single, - .map_sg = zorro_esp_map_sg, - .unmap_single = zorro_esp_unmap_single, - .unmap_sg = zorro_esp_unmap_sg, .irq_pending = fastlane_esp_irq_pending, .dma_length_limit = zorro_esp_dma_length_limit, .reset_dma = zorro_esp_reset_dma, |