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fthd/buffer: A couple of style fixes

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Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This commit is contained in:
Patrik Jakobsson
2016-05-04 16:53:05 +02:00
parent e2211f9ed3
commit 25c0797c6f
1 changed files with 13 additions and 9 deletions
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22
fthd_buffer.c
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@@ -42,7 +42,8 @@ static int iommu_allocator_init(struct fthd_private *dev_priv)
return 0;
}
struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv, struct sg_table *sgtable)
struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv,
struct sg_table *sgtable)
{
struct iommu_obj *obj;
struct resource *root = dev_priv->iommu;
@@ -50,10 +51,10 @@ struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv, struct s
int ret, i, pos;
int total_len = 0, dma_length;
dma_addr_t dma_addr;
for(i = 0; i < sgtable->nents; i++)
for (i = 0; i < sgtable->nents; i++)
total_len += sg_dma_len(sgtable->sgl + i);
if (!total_len)
return NULL;
@@ -79,21 +80,23 @@ struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv, struct s
obj->size = total_len;
pos = 0x9000 + obj->offset * 4;
for(i = 0; i < sgtable->nents; i++) {
for (i = 0; i < sgtable->nents; i++) {
sg = sgtable->sgl + i;
WARN_ON(sg->offset);
dma_addr = sg_dma_address(sg);
WARN_ON(dma_addr & 0xfff);
dma_addr >>= PAGE_SHIFT;
for(dma_length = 0; dma_length < sg_dma_len(sg); dma_length += 0x1000) {
// pr_debug("IOMMU %08x -> %08llx (dma length %d)\n", pos, dma_addr, dma_length);
for (dma_length = 0; dma_length < sg_dma_len(sg);
dma_length += 0x1000) {
// pr_debug("IOMMU %08x -> %08llx (dma length %d)\n", pos, dma_addr, dma_length);
FTHD_S2_REG_WRITE(dma_addr++, pos);
pos += 4;
}
}
pr_debug("allocated %d pages @ %p / offset %d\n", obj->size, obj, obj->offset);
return obj;
}
@@ -104,7 +107,7 @@ void iommu_free(struct fthd_private *dev_priv, struct iommu_obj *obj)
if (!obj)
return;
for (i = obj->offset; i < obj->offset + obj->size; i++)
FTHD_S2_REG_WRITE(0, 0x9000 + i * 4);
@@ -121,7 +124,8 @@ static void iommu_allocator_destroy(struct fthd_private *dev_priv)
int fthd_buffer_init(struct fthd_private *dev_priv)
{
int i;
for(i = 0; i < 0x1000; i++)
for (i = 0; i < 0x1000; i++)
FTHD_S2_REG_WRITE(0, 0x9000 + i * 4);
return iommu_allocator_init(dev_priv);