sdhci: highmem capable PIO routines
Improve the PIO handling so that it can service highmem pages.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 5bb3552..a06bf8b 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -212,6 +212,7 @@
/* Internal data */
struct mmc_host *mmc; /* MMC structure */
+ u64 dma_mask; /* custom DMA mask */
#ifdef CONFIG_LEDS_CLASS
struct led_classdev led; /* LED control */
@@ -238,10 +239,8 @@
struct mmc_data *data; /* Current data request */
unsigned int data_early:1; /* Data finished before cmd */
- struct scatterlist *cur_sg; /* We're working on this */
- int num_sg; /* Entries left */
- int offset; /* Offset into current sg */
- int remain; /* Bytes left in current */
+ struct sg_mapping_iter sg_miter; /* SG state for PIO */
+ unsigned int blocks; /* remaining PIO blocks */
int sg_count; /* Mapped sg entries */