Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

drm/msm: Use the correct dma_sync calls harder

Browse source 
commit 9f614197c744002f9968e82c649fdf7fe778e1e7 upstream.

Looks like the dma_sync calls don't do what we want on armv7 either.
Fixes:

  Unable to handle kernel paging request at virtual address 50001000
  pgd = (ptrval)
  [50001000] *pgd=00000000
  Internal error: Oops: 805 [#1] SMP ARM
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc6-00271-g9f159ae07f07 #4
  Hardware name: Freescale i.MX53 (Device Tree Support)
  PC is at v7_dma_clean_range+0x20/0x38
  LR is at __dma_page_cpu_to_dev+0x28/0x90
  pc : [<c011c76c>]    lr : [<c01181c4>]    psr: 20000013
  sp : d80b5a88  ip : de96c000  fp : d840ce6c
  r10: 00000000  r9 : 00000001  r8 : d843e010
  r7 : 00000000  r6 : 00008000  r5 : ddb6c000  r4 : 00000000
  r3 : 0000003f  r2 : 00000040  r1 : 50008000  r0 : 50001000
  Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
  Control: 10c5387d  Table: 70004019  DAC: 00000051
  Process swapper/0 (pid: 1, stack limit = 0x(ptrval))

Signed-off-by: Rob Clark <robdclark@chromium.org>
Fixes: 3de433c5b38a ("drm/msm: Use the correct dma_sync calls in msm_gem")
Tested-by: Fabio Estevam <festevam@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rob Clark 2019-09-04 09:56:03 -07:00 committed by Greg Kroah-Hartman
parent b61c29e397
commit 05fe33cad9
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/msm/msm_gem.c
View file

@ -61,7 +61,7 @@ static void sync_for_device(struct msm_gem_object *msm_obj)
{
struct device *dev = msm_obj->base.dev->dev;
if (get_dma_ops(dev)) {
if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) {
dma_sync_sg_for_device(dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
} else {
@ -74,7 +74,7 @@ static void sync_for_cpu(struct msm_gem_object *msm_obj)
{
struct device *dev = msm_obj->base.dev->dev;
if (get_dma_ops(dev)) {
if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) {
dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
} else {