Re: [PATCH i-g-t 1/3] tests/xe_gpgpu_fill: Add command line switch to dump the surface

["Grzegorzek, Dominik" <dominik.grzegorzek@intel.com>]

On Thu, 2024-11-14 at 13:06 +0100, Zbigniew Kempczyński wrote:
> When implementation for new platform is added and shader + pipeline
> needs to be adopted there's useful to dump the surface data.
> 
> 0xC4 pattern makes distinction from 0x4C written by the shader very
> hard so change it to 0x88 makes dump more clear.
> 
> Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> Cc: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Might be indeed helpful:

Reviewed-by: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
> ---
>  tests/intel/xe_gpgpu_fill.c | 43 ++++++++++++++++++++++++++++++++-----
>  1 file changed, 38 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/intel/xe_gpgpu_fill.c b/tests/intel/xe_gpgpu_fill.c
> index 24fab519cc..4e1785432b 100644
> --- a/tests/intel/xe_gpgpu_fill.c
> +++ b/tests/intel/xe_gpgpu_fill.c
> @@ -36,9 +36,11 @@
>  #define HEIGHT 64
>  #define STRIDE (WIDTH)
>  #define SIZE (HEIGHT*STRIDE)
> -#define COLOR_C4	0xc4
> +#define COLOR_88	0x88
>  #define COLOR_4C	0x4c
>  
> +static bool dump_surface;
> +
>  typedef struct {
>  	int drm_fd;
>  	uint32_t devid;
> @@ -89,26 +91,57 @@ static void gpgpu_fill(data_t *data, igt_fillfunc_t fill, uint32_t region)
>  	uint8_t *ptr;
>  	int i, j;
>  
> -	buf = create_buf(data, WIDTH, HEIGHT, COLOR_C4, region);
> +	buf = create_buf(data, WIDTH, HEIGHT, COLOR_88, region);
>  	ptr = xe_bo_map(data->drm_fd, buf->handle, buf->surface[0].size);
>  
>  	for (i = 0; i < WIDTH; i++)
>  		helfor (j = 0; j < HEIGHT; j++)
> -			buf_check(ptr, i, j, COLOR_C4);
> +			buf_check(ptr, i, j, COLOR_88);
>  
>  	fill(data->drm_fd, buf, 0, 0, WIDTH / 2, HEIGHT / 2, COLOR_4C);
>  
> +	if (dump_surface) {
> +		for (j = 0; j < HEIGHT; j++) {
> +			igt_info("[%04x] ", j);
> +			for (i = 0; i < WIDTH; i++) {
> +				igt_info("%02x", ptr[j * HEIGHT + i]);
> +				if (i % 4 == 3)
> +					igt_info(" ");
> +			}
> +			igt_info("\n");
> +		}
> +	}
> +
>  	for (i = 0; i < WIDTH; i++)
>  		for (j = 0; j < HEIGHT; j++)
>  			if (i < WIDTH / 2 && j < HEIGHT / 2)
>  				buf_check(ptr, i, j, COLOR_4C);
>  			else
> -				buf_check(ptr, i, j, COLOR_C4);
> +				buf_check(ptr, i, j, COLOR_88);
>  
>  	munmap(ptr, buf->surface[0].size);
>  }
>  
> -igt_main
> +static int opt_handler(int opt, int opt_index, void *data)
> +{
> +	switch (opt) {
> +	case 'd':
> +		dump_surface = true;
> +		break;
> +	default:
> +		return IGT_OPT_HANDLER_ERROR;
> +	}
> +
> +	return IGT_OPT_HANDLER_SUCCESS;
> +}
> +
> +
> +const char *help_str =
> +	"  -d\tDump surface\n"
> +	;
> +
> +
> +igt_main_args("d", NULL, help_str, opt_handler, NULL)
>  {
>  	data_t data = {0, };
>  	igt_fillfunc_t fill_fn = NULL;