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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2019-03-07 10:12:26 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-28 02:09:58 +0900
commit80f3afd72bd4149c57daf852905476b43bb47647 (patch)
treead60a1c7d5b8f8ae8d3b94b9d7222d1dd53ea109 /drivers/misc/fastrpc.c
parent977e6c8d1d18061e083080c3657631eec17ca3ff (diff)
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misc: fastrpc: consider address offset before sending to DSP
While passing address phy address to DSP, take care of the offset calculated from virtual address vma. Fixes: c68cfb718c8f ("misc: fastrpc: Add support for context Invoke method") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/fastrpc.c')
-rw-r--r--drivers/misc/fastrpc.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 8e43f3d85bfd..5440735c94ba 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -679,8 +679,16 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)
pages[i].size = roundup(len, PAGE_SIZE);
if (ctx->maps[i]) {
+ struct vm_area_struct *vma = NULL;
+
rpra[i].pv = (u64) ctx->args[i].ptr;
pages[i].addr = ctx->maps[i]->phys;
+
+ vma = find_vma(current->mm, ctx->args[i].ptr);
+ if (vma)
+ pages[i].addr += ctx->args[i].ptr -
+ vma->vm_start;
+
} else {
rlen -= ALIGN(args, FASTRPC_ALIGN) - args;
args = ALIGN(args, FASTRPC_ALIGN);