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fthd: Add S2_PAGE_SIZE and S2_PAGE_SHIFT defines

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Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This commit is contained in:
Patrik Jakobsson
2016-06-21 01:12:11 +02:00
parent 6d8919457f
commit ecef74923f
2 changed files with 12 additions and 5 deletions
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14
fthd_buffer.c
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@@ -38,7 +38,8 @@ static int iommu_allocator_init(struct fthd_private *dev_priv)
return -ENOMEM;
dev_priv->iommu->start = 0;
dev_priv->iommu->end = PAGE_SIZE - 1;
dev_priv->iommu->end = S2_PAGE_SIZE - 1;
return 0;
}
@@ -58,8 +59,8 @@ struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv,
if (!total_len)
return NULL;
total_len = roundup(total_len, PAGE_SIZE);
total_len = roundup(total_len, S2_PAGE_SIZE) / S2_PAGE_SIZE;
obj = kzalloc(sizeof(struct iommu_obj), GFP_KERNEL);
if (!obj)
return NULL;
@@ -84,11 +85,14 @@ struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv,
sg = sgtable->sgl + i;
WARN_ON(sg->offset);
dma_addr = sg_dma_address(sg);
WARN_ON(dma_addr & 0xfff);
dma_addr >>= PAGE_SHIFT;
dma_addr >>= S2_PAGE_SHIFT;
for (dma_length = 0; dma_length < sg_dma_len(sg);
dma_length += 0x1000) {
dma_length += S2_PAGE_SIZE) {
/* FIXME: How do we handle 64-bit dma_addr_t? */
FTHD_S2_REG_WRITE(dma_addr++, pos);
pos += 4;
}

3
fthd_drv.h
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@@ -38,6 +38,9 @@
#define FTHD_NUM_BUFS 4
#define S2_PAGE_SIZE 4096
#define S2_PAGE_SHIFT 12
enum FW_CHAN_TYPE {
FW_CHAN_TYPE_OUT=0,
FW_CHAN_TYPE_IN=1,