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Merge "msm: ADSPRPC: Flush un-aligned buffers before remote invocation"

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2013-05-17 13:52:59 -07:00
committed by Gerrit - the friendly Code Review server
parent 29bd6f57a7 9a1c819982
commit ca9c643597
1 changed files with 25 additions and 0 deletions
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drivers/char/adsprpc.c
+25
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@@ -56,6 +56,8 @@
} while (0)
#define IS_CACHE_ALIGNED(x) (((x) & ((L1_CACHE_BYTES)-1)) == 0)
static inline uint32_t buf_page_start(void *buf)
{
uint32_t start = (uint32_t) buf & PAGE_MASK;
@@ -517,6 +519,28 @@ static int put_args(uint32_t kernel, uint32_t sc, remote_arg_t *pra,
return err;
}
static void inv_args_pre(uint32_t sc, remote_arg_t *rpra)
{
int i, inbufs, outbufs;
uint32_t end;
inbufs = REMOTE_SCALARS_INBUFS(sc);
outbufs = REMOTE_SCALARS_OUTBUFS(sc);
for (i = inbufs; i < inbufs + outbufs; ++i) {
if (!rpra[i].buf.len)
continue;
if (buf_page_start(rpra) == buf_page_start(rpra[i].buf.pv))
continue;
if (!IS_CACHE_ALIGNED((uint32_t)rpra[i].buf.pv))
dmac_flush_range(rpra[i].buf.pv,
(char *)rpra[i].buf.pv + 1);
end = (uint32_t)rpra[i].buf.pv + rpra[i].buf.len;
if (!IS_CACHE_ALIGNED(end))
dmac_flush_range((char *)end,
(char *)end + 1);
}
}
static void inv_args(uint32_t sc, remote_arg_t *rpra, int used)
{
int i, inbufs, outbufs;
@@ -780,6 +804,7 @@ static int fastrpc_internal_invoke(struct fastrpc_apps *me, uint32_t kernel,
}
context_list_alloc_ctx(&me->clst, &ctx);
inv_args_pre(sc, rpra);
VERIFY(err, 0 == fastrpc_invoke_send(me, kernel, invoke->handle, sc,
ctx, &obuf));
if (err)