Commit d038aee24dcd5a2a0d8547f5396f67ae9698ac8e
"omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag",
changes iovmm to receive flags specified by user, however
the upper 16 bits of the flags are wiped by iovmm itself.
This fixes IOVMF_DA_FIXED flags from being lost, and lets the user
map its desired "device addresses".
Signed-off-by: Omar Ramirez Luna <omar.ramirez@xxxxxx>
---
v2:
Include missing reference (commit and name) to patch in
description.
arch/arm/plat-omap/include/plat/iovmm.h | 3 ---
arch/arm/plat-omap/iovmm.c | 4 ----
2 files changed, 0 insertions(+), 7 deletions(-)
diff --git a/arch/arm/plat-omap/include/plat/iovmm.h b/arch/arm/plat-omap/include/plat/iovmm.h
index 32a2f6c..e992b96 100644
--- a/arch/arm/plat-omap/include/plat/iovmm.h
+++ b/arch/arm/plat-omap/include/plat/iovmm.h
@@ -29,9 +29,6 @@ struct iovm_struct {
* lower 16 bit is used for h/w and upper 16 bit is for s/w.
*/
#define IOVMF_SW_SHIFT 16
-#define IOVMF_HW_SIZE (1 << IOVMF_SW_SHIFT)
-#define IOVMF_HW_MASK (IOVMF_HW_SIZE - 1)
-#define IOVMF_SW_MASK (~IOVMF_HW_MASK)UL
/*
* iovma: h/w flags derived from cam and ram attribute
diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 51ef43e..83a37c5 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -648,7 +648,6 @@ u32 iommu_vmap(struct iommu *obj, u32 da, const struct sg_table *sgt,
return PTR_ERR(va);
}
- flags &= IOVMF_HW_MASK;
flags |= IOVMF_DISCONT;
flags |= IOVMF_MMIO;
@@ -706,7 +705,6 @@ u32 iommu_vmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags)
if (!va)
return -ENOMEM;
- flags &= IOVMF_HW_MASK;
flags |= IOVMF_DISCONT;
flags |= IOVMF_ALLOC;
@@ -795,7 +793,6 @@ u32 iommu_kmap(struct iommu *obj, u32 da, u32 pa, size_t bytes,
if (!va)
return -ENOMEM;
- flags &= IOVMF_HW_MASK;
flags |= IOVMF_LINEAR;
flags |= IOVMF_MMIO;
@@ -853,7 +850,6 @@ u32 iommu_kmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags)
return -ENOMEM;
pa = virt_to_phys(va);
- flags &= IOVMF_HW_MASK;
flags |= IOVMF_LINEAR;
flags |= IOVMF_ALLOC;
--
1.7.1
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