diff options
Diffstat (limited to 'drivers/misc/fastrpc.c')
| -rw-r--r-- | drivers/misc/fastrpc.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 80fec7b619cc..aa2d55894263 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -712,6 +712,7 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) struct fastrpc_phy_page *pages; int inbufs, i, oix, err = 0; u64 len, rlen, pkt_size; + u64 pg_start, pg_end; uintptr_t args; int metalen; @@ -751,8 +752,6 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) if (!len) continue; - pages[i].size = roundup(len, PAGE_SIZE); - if (ctx->maps[i]) { struct vm_area_struct *vma = NULL; @@ -764,6 +763,11 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) pages[i].addr += ctx->args[i].ptr - vma->vm_start; + pg_start = (ctx->args[i].ptr & PAGE_MASK) >> PAGE_SHIFT; + pg_end = ((ctx->args[i].ptr + len - 1) & PAGE_MASK) >> + PAGE_SHIFT; + pages[i].size = (pg_end - pg_start + 1) * PAGE_SIZE; + } else { if (ctx->olaps[oix].offset == 0) { @@ -782,6 +786,9 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) (pkt_size - rlen); pages[i].addr = pages[i].addr & PAGE_MASK; + pg_start = (args & PAGE_MASK) >> PAGE_SHIFT; + pg_end = ((args + len - 1) & PAGE_MASK) >> PAGE_SHIFT; + pages[i].size = (pg_end - pg_start + 1) * PAGE_SIZE; args = args + mlen; rlen -= mlen; } |