Re: [PATCH 5/5] tests: make drm_read platform agnostic

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On Fri, Jul 31, 2015 at 04:11:11PM -0400, Micah Fedke wrote:

Same comment about lack of commit message and coding style mangling. Also
seems to contain some unrelated changes ...
-Daniel

> ---
>  tests/drm_read.c | 101 ++++++++++++++++++++++++++++++-------------------------
>  1 file changed, 55 insertions(+), 46 deletions(-)
> 
> diff --git a/tests/drm_read.c b/tests/drm_read.c
> index fdaf126..f60e21c 100644
> --- a/tests/drm_read.c
> +++ b/tests/drm_read.c
> @@ -45,10 +45,15 @@
>  #include "drm.h"
>  #include "ioctl_wrappers.h"
>  #include "drmtest.h"
> +#include "igt_core.h"
>  #include "igt_aux.h"
> +#include "igt_kms.h"
>  
>  IGT_TEST_DESCRIPTION("Call read(drm) and see if it behaves.");
>  
> +static drmModeRes *resources;
> +static int crtc_idx;
> +
>  static void sighandler(int sig)
>  {
>  }
> @@ -61,16 +66,19 @@ static void assert_empty(int fd)
>  
>  static void generate_event(int fd)
>  {
> -	union drm_wait_vblank vbl;
> +   drmVBlank wait_vbl;
> +	unsigned crtc_idx_mask;
> +	memset(&wait_vbl, 0, sizeof(wait_vbl));
>  
> -	/* We require that pipe 0 is running */
> +	crtc_idx_mask = crtc_idx << DRM_VBLANK_HIGH_CRTC_SHIFT;
> +	igt_assert(!(crtc_idx_mask & ~DRM_VBLANK_HIGH_CRTC_MASK));
>  
> -	vbl.request.type =
> -		DRM_VBLANK_RELATIVE |
> -		DRM_VBLANK_EVENT;
> -	vbl.request.sequence = 0;
> +	wait_vbl.request.type = crtc_idx_mask;
> +	wait_vbl.request.type |= DRM_VBLANK_RELATIVE;
> +	wait_vbl.request.type |= DRM_VBLANK_EVENT;
> +	wait_vbl.request.sequence = 1;
>  
> -	do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
> +	igt_assert(!drmWaitVBlank(fd, &wait_vbl));
>  }
>  
>  static void wait_for_event(int fd)
> @@ -154,44 +162,23 @@ static void test_short_buffer(int in, int nonblock)
>  
>  static int pipe0_enabled(int fd)
>  {
> -	struct drm_mode_card_res res;
> -	uint32_t crtcs[32];
> -	int i;
> -
> -	/* We assume we can generate events on pipe 0. So we have better
> -	 * make sure that is running!
> -	 */
> -
> -	memset(&res, 0, sizeof(res));
> -	res.count_crtcs = 32;
> -	res.crtc_id_ptr = (uintptr_t)crtcs;
> -
> -	if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
> -		return 0;
> -
> -	if (res.count_crtcs > 32)
> -		return 0;
> -
> -	for (i = 0; i < res.count_crtcs; i++) {
> -		struct drm_i915_get_pipe_from_crtc_id get_pipe;
> -		struct drm_mode_crtc mode;
> -
> -		memset(&get_pipe, 0, sizeof(get_pipe));
> -		memset(&mode, 0, sizeof(mode));
> -
> -		mode.crtc_id = crtcs[i];
> -
> -		get_pipe.pipe = -1;
> -		get_pipe.crtc_id = mode.crtc_id;
> -		drmIoctl(fd, DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID, &get_pipe);
> -		if (get_pipe.pipe)
> -			continue;
> -
> -		drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &mode);
> -		return mode.mode_valid && mode.mode.clock;
> -	}
> -
> -	return 0;
> +   drmModeRes *res;
> +   drmModeCrtc *crtc;
> +
> +   /* We assume we can generate events on pipe 0. So we have better
> +    * make sure that is running!
> +    */
> +
> +   res = drmModeGetResources(fd);
> +   igt_assert(res);
> +   crtc = drmModeGetCrtc(fd, res->crtcs[crtc_idx]);
> +   if (!crtc){
> +      return 0;
> +   }
> +   drmModeFreeCrtc(crtc);
> +   drmModeFreeResources(res);
> +
> +   return crtc->mode_valid && crtc->mode.clock;
>  }
>  
>  igt_main
> @@ -202,8 +189,30 @@ igt_main
>  	siginterrupt(SIGALRM, 1);
>  
>  	igt_fixture {
> -		fd = drm_open_driver_master(DRIVER_INTEL);
> +	   struct kmstest_connector_config config;
> +      int i, n;
> +
> +		fd = drm_open_driver_master(OPEN_ANY_GPU);
> +		igt_enable_connectors(fd);
> +		kmstest_set_vt_graphics_mode();
> +
>  		igt_require(pipe0_enabled(fd));
> +
> +	   resources = drmModeGetResources(fd);
> +	   igt_assert(resources);
> +
> +      for (i = 0; i < resources->count_connectors; i++) {
> +         for (n = 0; n < resources->count_crtcs; n++) {
> +            //use the first connector config we find
> +	         if(kmstest_get_connector_config(fd, resources->connectors[i],
> +                                            1 << n, &config)){
> +               crtc_idx = config.crtc_idx;
> +               break;
> +            }
> +         }
> +      }
> +      drmModeFreeCrtc(config.crtc);
> +
>  	}
>  
>  	igt_subtest("invalid-buffer")
> -- 
> 2.1.4
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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