dany/facetimehd
1
0
Fork 0
mirror of https://github.com/patjak/facetimehd.git synced 2026-04-09 11:02:31 +02:00
Code Issues Packages Projects Releases Wiki Activity

fthd/buffer: Use macros instead of open-coding

Browse Source 
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This commit is contained in:
Patrik Jakobsson
2016-05-04 16:44:12 +02:00
parent 782364ff96
commit e2211f9ed3
1 changed files with 5 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
fthd_buffer.c
View File

@@ -17,6 +17,7 @@
*
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/printk.h>
@@ -25,8 +26,6 @@
#include "fthd_hw.h"
#include "fthd_buffer.h"
#define GET_IOMMU_PAGES(_x) (((_x) + 4095)/4096)
struct buf_ctx {
struct fthd_plane plane[4];
struct isp_mem_obj *isphdr;
@@ -39,7 +38,7 @@ static int iommu_allocator_init(struct fthd_private *dev_priv)
return -ENOMEM;
dev_priv->iommu->start = 0;
dev_priv->iommu->end = 4095;
dev_priv->iommu->end = PAGE_SIZE - 1;
return 0;
}
@@ -58,9 +57,8 @@ struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv, struct s
if (!total_len)
return NULL;
total_len += 4095;
total_len /= 4096;
total_len = roundup(total_len, PAGE_SIZE);
obj = kzalloc(sizeof(struct iommu_obj), GFP_KERNEL);
if (!obj)
return NULL;
@@ -86,7 +84,7 @@ struct iommu_obj *iommu_allocate_sgtable(struct fthd_private *dev_priv, struct s
WARN_ON(sg->offset);
dma_addr = sg_dma_address(sg);
WARN_ON(dma_addr & 0xfff);
dma_addr >>= 12;
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);