[igt-dev] [PATCH i-g-t 2/2] lib/igt_fb: Don't leak the bufmgr and batch for converted surfaces

[Dhinakaran Pandiyan]

On Thu, 2019-03-28 at 19:54 +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Remember to free the bufmgr and batch after the convert surface is
> destroyed. We'll do that by sucking the relevant code into
> free_linear_mapping(), and for the sake of symmetry we'll move
> the setup code into setup_linear_mapping().
> 
> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>

Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>


> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  lib/igt_fb.c | 24 +++++++++++-------------
>  1 file changed, 11 insertions(+), 13 deletions(-)
> 
> diff --git a/lib/igt_fb.c b/lib/igt_fb.c
> index 8b6adf55a338..99766d2d08f9 100644
> --- a/lib/igt_fb.c
> +++ b/lib/igt_fb.c
> @@ -1604,6 +1604,11 @@ static void free_linear_mapping(struct fb_blit_upload
> *blit)
>  
>  	gem_sync(fd, linear->fb.gem_handle);
>  	gem_close(fd, linear->fb.gem_handle);
> +
> +	if (blit->batch) {
> +		intel_batchbuffer_free(blit->batch);
> +		drm_intel_bufmgr_destroy(blit->bufmgr);
> +	}
>  }
>  
>  static void destroy_cairo_surface__blit(void *arg)
> @@ -1625,9 +1630,6 @@ static void destroy_cairo_surface__rendercopy(void *arg)
>  
>  	free_linear_mapping(blit);
>  
> -	intel_batchbuffer_free(blit->batch);
> -	drm_intel_bufmgr_destroy(blit->bufmgr);
> -
>  	free(blit);
>  }
>  
> @@ -1637,6 +1639,12 @@ static void setup_linear_mapping(struct fb_blit_upload
> *blit)
>  	struct igt_fb *fb = blit->fb;
>  	struct fb_blit_linear *linear = &blit->linear;
>  
> +	if (use_rendercopy(fb)) {
> +		blit->bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
> +		blit->batch = intel_batchbuffer_alloc(blit->bufmgr,
> +						      intel_get_drm_devid(fd));
> +	}
> +
>  	/*
>  	 * We create a linear BO that we'll map for the CPU to write to (using
>  	 * cairo). This linear bo will be then blitted to its final
> @@ -1706,10 +1714,6 @@ static void create_cairo_surface__rendercopy(int fd,
> struct igt_fb *fb)
>  	blit->fd = fd;
>  	blit->fb = fb;
>  
> -	blit->bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
> -	blit->batch = intel_batchbuffer_alloc(blit->bufmgr,
> -					      intel_get_drm_devid(fd));
> -
>  	setup_linear_mapping(blit);
>  
>  	cairo_format = drm_format_to_cairo(fb->drm_format);
> @@ -2525,12 +2529,6 @@ static void create_cairo_surface__convert(int fd,
> struct igt_fb *fb)
>  	blit->base.fd = fd;
>  	blit->base.fb = fb;
>  
> -	if (use_rendercopy(fb)) {
> -		blit->base.bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
> -		blit->base.batch = intel_batchbuffer_alloc(blit->base.bufmgr,
> -						   intel_get_drm_devid(fd));
> -	}
> -
>  	blit->shadow_ptr = igt_fb_create_cairo_shadow_buffer(fd, drm_format,
>  							     fb->width,
>  							     fb->height,