target/linux/brcm2708/patches-4.19/950-0554-staging-vcsm-cma-Fixup-the-alloc-code-handling-of-ke.patch

   1 From 52f881e3afa89bb1ca9e8b037f7600bcc97626e8 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Wed, 22 May 2019 15:40:37 +0100
   4 Subject: [PATCH] staging: vcsm-cma: Fixup the alloc code handling of
   5  kernel_id
   6
   7 The allocation code had been copied in from an old branch prior
   8 to having added the IDR for 64bit support. It was therefore pushing
   9 a pointer into the kernel_id field instead of an IDR handle, the
  10 lookup therefore failed, and we never released the buffer.
  11
  12 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  13 ---
  14  drivers/staging/vc04_services/vc-sm-cma/vc_sm.c | 3 ++-
  15  1 file changed, 2 insertions(+), 1 deletion(-)
  16
  17 --- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
  18 +++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
  19 @@ -1206,7 +1206,7 @@ int vc_sm_cma_ioctl_alloc(struct vc_sm_p
  20
  21         import.addr = (uint32_t)sg_dma_address(buffer->sg_table->sgl);
  22         import.size = aligned_size;
  23 -       import.kernel_id = (uint32_t)buffer;
  24 +       import.kernel_id = get_kernel_id(buffer);
  25
  26         /* Wrap it into a videocore buffer. */
  27         status = vc_sm_cma_vchi_import(sm_state->sm_handle, &import, &result,
  28 @@ -1231,6 +1231,7 @@ int vc_sm_cma_ioctl_alloc(struct vc_sm_p
  29         buffer->size = import.size;
  30         buffer->dma_addr = import.addr;
  31         buffer->vpu_state = VPU_MAPPED;
  32 +       buffer->kernel_id = import.kernel_id;
  33         //buffer->res_cached = ioparam->cached;
  34
  35         fd = dma_buf_fd(dmabuf, O_CLOEXEC);