Re: [PATCH 1/2] drm/i915/dmabuf: fix broken build

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On Wed, 27 Oct 2021 at 09:58, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
>
> On Wed, 27 Oct 2021, Matthew Auld <matthew.william.auld@xxxxxxxxx> wrote:
> > On Thu, 21 Oct 2021 at 13:54, Matthew Auld <matthew.auld@xxxxxxxxx> wrote:
> >>
> >> wbinvd_on_all_cpus() is only defined on x86 it seems, plus we need to
> >> include asm/smp.h here.
> >>
> >> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> >> Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
> >> Cc: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
> >
> > Jani, would it make sense to cherry-pick this to -fixes? The offending
> > commit is in drm-next, and there have been a few reports around this.
> >
> > Fixes: a035154da45d ("drm/i915/dmabuf: add paranoid flush-on-acquire")
>
> If the Fixes: tag is in place, our tooling will cherry-pick it where it
> belongs. (In this case, drm-intel-next-fixes, not drm-intel-fixes.)

Yeah, I forgot to add the fixes tag here unfortunately.

>
> Cc: Rodrigo who covers drm-intel-next-fixes atm.
>
> BR,
> Jani.
>
>
>
> >
> >
> >> ---
> >>  drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 7 +++++++
> >>  1 file changed, 7 insertions(+)
> >>
> >> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> >> index 1adcd8e02d29..a45d0ec2c5b6 100644
> >> --- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> >> +++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> >> @@ -12,6 +12,13 @@
> >>  #include "i915_gem_object.h"
> >>  #include "i915_scatterlist.h"
> >>
> >> +#if defined(CONFIG_X86)
> >> +#include <asm/smp.h>
> >> +#else
> >> +#define wbinvd_on_all_cpus() \
> >> +       pr_warn(DRIVER_NAME ": Missing cache flush in %s\n", __func__)
> >> +#endif
> >> +
> >>  I915_SELFTEST_DECLARE(static bool force_different_devices;)
> >>
> >>  static struct drm_i915_gem_object *dma_buf_to_obj(struct dma_buf *buf)
> >> --
> >> 2.26.3
> >>
>
> --
> Jani Nikula, Intel Open Source Graphics Center




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