From 80f3afd72bd4149c57daf852905476b43bb47647 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Thu, 7 Mar 2019 10:12:26 +0000 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/misc/fastrpc.c | 8 ++++++++ 1 file changed, 8 insertions(+) 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);