Re: [igt-dev] [PATCH i-g-t v2 1/2] tests/intel_dp_compliance: use device coherent mapping instead of mmap_gtt

["Dixit, Ashutosh" <ashutosh.dixit@intel.com>]

On Fri, 07 Feb 2020 05:45:26 -0800, Ramalingam C wrote:
>
> As tiling is not used we use the device coherent mapping instead of
> mmap_gtt.
>
> v2:
>   instead of skipping device coherent mapping is used. [Ashutosh]
>
> Signed-off-by: Ramalingam C <ramalingam.c@intel.com>

Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>

> ---
>  tools/intel_dp_compliance.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/tools/intel_dp_compliance.c b/tools/intel_dp_compliance.c
> index 5cc3d37a71d6..2d42cb1a7b6f 100644
> --- a/tools/intel_dp_compliance.c
> +++ b/tools/intel_dp_compliance.c
> @@ -451,9 +451,9 @@ static int setup_framebuffers(struct connector *dp_conn)
>	igt_assert(dp_conn->fb);
>
>	/* Map the mapping of GEM object into the virtual address space */
> -	dp_conn->pixmap = gem_mmap__gtt(drm_fd,
> +	dp_conn->pixmap = gem_mmap__device_coherent(drm_fd,
>					dp_conn->fb_video_pattern.gem_handle,
> -					dp_conn->fb_video_pattern.size,
> +					0, dp_conn->fb_video_pattern.size,
>					PROT_READ | PROT_WRITE);
>	if (dp_conn->pixmap == NULL)
>		return -1;
> @@ -481,9 +481,9 @@ static int setup_failsafe_framebuffer(struct connector *dp_conn)
>	igt_assert(dp_conn->failsafe_fb);
>
>	/* Map the mapping of GEM object into the virtual address space */
> -	dp_conn->failsafe_pixmap = gem_mmap__gtt(drm_fd,
> +	dp_conn->failsafe_pixmap = gem_mmap__device_coherent(drm_fd,
>						 dp_conn->fb_failsafe_pattern.gem_handle,
> -						 dp_conn->fb_failsafe_pattern.size,
> +						 0, dp_conn->fb_failsafe_pattern.size,
>						 PROT_READ | PROT_WRITE);
>	if (dp_conn->failsafe_pixmap == NULL)
>		return -1;
> @@ -518,9 +518,9 @@ static int setup_video_pattern_framebuffer(struct connector *dp_conn)
>	igt_assert(dp_conn->test_pattern.fb);
>
>	/* Map the mapping of GEM object into the virtual address space */
> -	dp_conn->test_pattern.pixmap = gem_mmap__gtt(drm_fd,
> +	dp_conn->test_pattern.pixmap = gem_mmap__device_coherent(drm_fd,
>						     dp_conn->test_pattern.fb_pattern.gem_handle,
> -						     dp_conn->test_pattern.fb_pattern.size,
> +						     0, dp_conn->test_pattern.fb_pattern.size,
>						     PROT_READ | PROT_WRITE);
>	if (dp_conn->test_pattern.pixmap == NULL)
>		return -1;
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