[igt-dev] [PATCH i-g-t] tests/gem_ccs: Add subtests

Kamil Konieczny kamil.konieczny at linux.intel.com
Mon Mar 14 16:34:22 UTC 2022


Dnia 2022-03-11 at 19:15:34 +0100, Zbigniew Kempczyński napisał(a):
> From: Apoorva Singh <apoorva1.singh at intel.com>
> 
> - Verify ccs data is binded to physical memory by using
>   XY_CTRL_SURF_COPY_BLT command in separate context.
> 
> - Introduce suspend/resume and verify validity of objects.
> 

imho this should be splitted up to two separate patches, one for
verify binding, second for suspend/resume. May you point to
some RFC/doc/spec about how suspend/resume is handled by device,
e.g. if LMEM in discrete gfx can survive it ? If it is only SMEM,
please put it in commit description. You should also describe
how you check validity, it looks like it is checked only in
compression scenario.

> Signed-off-by: Apoorva Singh <apoorva1.singh at intel.com>
> Cc: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
> ---
>  tests/i915/gem_ccs.c | 79 +++++++++++++++++++++++++++++++++++---------
>  1 file changed, 64 insertions(+), 15 deletions(-)
> 
> diff --git a/tests/i915/gem_ccs.c b/tests/i915/gem_ccs.c
> index fdf1fe75f5..073e5b3d3e 100644
> --- a/tests/i915/gem_ccs.c
> +++ b/tests/i915/gem_ccs.c
> @@ -4,6 +4,7 @@
>   */
>  
>  #include <errno.h>
> +#include <glib.h>
>  #include <sys/ioctl.h>
>  #include <sys/time.h>
>  #include <malloc.h>
> @@ -39,6 +40,8 @@ struct test_config {
>  	bool compression;
>  	bool inplace;
>  	bool surfcopy;
> +	bool new_ctx;
> +	bool suspend_resume;
>  };
>  
>  static void set_object(struct blt_copy_object *obj,
> @@ -161,22 +164,24 @@ static void surf_copy(int i915,
>  		      const struct blt_copy_object *src,
>  		      const struct blt_copy_object *mid,
>  		      const struct blt_copy_object *dst,
> -		      int run_id)
> +		      int run_id, bool suspend_resume)

It is better to make separate function suspend_resume.

>  {
>  	struct blt_copy_data blt = {};
>  	struct blt_block_copy_data_ext ext = {};
>  	struct blt_ctrl_surf_copy_data surf = {};
> -	uint32_t bb, ccs, *ccsmap;
> -	uint64_t bb_size = 4096;
> -	uint64_t ccssize = mid->size / CCS_RATIO;
> +	uint32_t bb, ccs, ccs2, *ccsmap, *ccsmap2;
> +	uint64_t bb_size, ccssize = mid->size / CCS_RATIO;
>  	uint32_t *ccscopy;
>  	uint8_t uc_mocs = intel_get_uc_mocs(i915);
>  	int result;
> +	char *orig, *orig2, *new, *new2;
>  
>  	igt_assert(mid->compression);
>  	ccscopy = (uint32_t *) malloc(ccssize);
> +	bb_size = 4096;
>  	bb = gem_create_from_pool(i915, &bb_size, REGION_SMEM);
>  	ccs = gem_create(i915, ccssize);
> +	ccs2 = gem_create(i915, ccssize);
>  
>  	surf.i915 = i915;
>  	surf.print_bb = param.print_bb;
> @@ -192,6 +197,27 @@ static void surf_copy(int i915,
>  					   PROT_READ | PROT_WRITE);
>  	memcpy(ccscopy, ccsmap, ccssize);
>  
> +	if (suspend_resume) {
> +		orig = g_compute_checksum_for_data(G_CHECKSUM_SHA1, (void *)ccsmap, surf.dst.size);
> +		orig2 = g_compute_checksum_for_data(G_CHECKSUM_SHA1, (void *)mid->ptr, mid->size);
> +
> +		igt_system_suspend_autoresume(SUSPEND_STATE_FREEZE, SUSPEND_TEST_NONE);

Why not just leave only this one line here and delete others
from if-suspend-resume block ? Then it will look like:

	if (suspend_resume)
		igt_system_suspend_autoresume(SUSPEND_STATE_FREEZE, SUSPEND_TEST_NONE);

In this case it can be added with only one boolean as param. Can
suspend/resume be used in other places in this function ? Or for
other checks, for example if LMEM is restored after resume ?

> +
> +		set_surf_object(&surf.dst, ccs2, REGION_SMEM, ccssize,
> +				0, DIRECT_ACCESS);
> +		blt_ctrl_surf_copy(i915, ctx, e, ahnd, &surf);
> +		gem_sync(i915, surf.dst.handle);
> +
> +		ccsmap2 = gem_mmap__device_coherent(i915, ccs2, 0, surf.dst.size,
> +						    PROT_READ | PROT_WRITE);
> +		new = g_compute_checksum_for_data(G_CHECKSUM_SHA1, (void *)ccsmap2, surf.dst.size);
> +		new2 = g_compute_checksum_for_data(G_CHECKSUM_SHA1, (void *)mid->ptr, mid->size);
> +
> +		igt_assert(!strcmp(orig, new));
> +		igt_assert(!strcmp(orig2, new2));
> +		munmap(ccsmap2, ccssize);

Move unmap before first assert. Btw the uncompression phase
checks data integrity. Why not move checksums into main function
body and replace memcmp ? It can be left to later refactor.

> +	}
> +
>  	/* corrupt ccs */
>  	for (int i = 0; i < surf.dst.size / sizeof(uint32_t); i++)
>  		ccsmap[i] = i;
> @@ -208,6 +234,7 @@ static void surf_copy(int i915,
>  	set_blt_object(&blt.dst, dst);
>  	set_object_ext(&ext.src, mid->compression_type, mid->x2, mid->y2, SURFACE_TYPE_2D);
>  	set_object_ext(&ext.dst, 0, dst->x2, dst->y2, SURFACE_TYPE_2D);
> +	bb_size = 4096;
>  	bb = gem_create_from_pool(i915, &bb_size, REGION_SMEM);
>  	set_batch(&blt.bb, bb, bb_size, REGION_SMEM);
>  	blt_block_copy(i915, ctx, e, ahnd, &blt, &ext);
> @@ -228,15 +255,15 @@ static void surf_copy(int i915,
>  
>  	munmap(ccsmap, ccssize);
>  	gem_close(i915, ccs);
> +	gem_close(i915, ccs2);
>  }
>  
>  static void block_copy(int i915,
>  		       const intel_ctx_t *ctx,
>  		       const struct intel_execution_engine2 *e,
>  		       uint32_t region1, uint32_t region2,
> -		       enum blt_tiling mid_tiling, bool compression,
> -		       bool inplace,
> -		       bool surfcopy)
> +		       enum blt_tiling mid_tiling,
> +		       const struct test_config *config)
>  {
>  	struct blt_copy_data blt = {};
>  	struct blt_block_copy_data_ext ext = {}, *pext = &ext;
> @@ -249,7 +276,7 @@ static void block_copy(int i915,
>  	uint32_t run_id = mid_tiling;
>  	uint32_t mid_region = region2, bb;
>  	uint32_t width = param.width, height = param.height;
> -	enum blt_compression mid_compression = compression;
> +	enum blt_compression mid_compression = config->compression;
>  	int mid_compression_format = param.compression_format;
>  	enum blt_compression_type comp_type = COMPRESSION_TYPE_3D;
>  	uint8_t uc_mocs = intel_get_uc_mocs(i915);
> @@ -293,8 +320,17 @@ static void block_copy(int i915,
>  	WRITE_PNG(i915, run_id, "src", &blt.src, width, height);
>  	WRITE_PNG(i915, run_id, "mid", &blt.dst, width, height);
>  
> -	if (surfcopy && pext)
> -		surf_copy(i915, ctx, e, ahnd, src, mid, dst, run_id);
> +	if (config->surfcopy && pext) {
> +		const intel_ctx_t *surf_ctx = ctx;
> +
> +		if (config->new_ctx)
> +			surf_ctx = intel_ctx_create(i915, &ctx->cfg);
> +
> +		surf_copy(i915, surf_ctx, e, ahnd, src, mid, dst, run_id, config->suspend_resume);
> +
> +		if (surf_ctx != ctx)
> +			intel_ctx_destroy(i915, surf_ctx);
> +	}
>  
>  	memset(&blt, 0, sizeof(blt));
>  	blt.color_depth = CD_32bit;
> @@ -303,7 +339,7 @@ static void block_copy(int i915,
>  	set_blt_object(&blt.dst, dst);
>  	set_object_ext(&ext.src, mid_compression_format, width, height, SURFACE_TYPE_2D);
>  	set_object_ext(&ext.dst, 0, width, height, SURFACE_TYPE_2D);
> -	if (inplace) {
> +	if (config->inplace) {
>  		set_object(&blt.dst, mid->handle, dst->size, mid->region, 0,
>  			   T_LINEAR, COMPRESSION_DISABLED, comp_type);
>  		blt.dst.ptr = mid->ptr;
> @@ -367,10 +403,7 @@ static void block_copy_test(int i915,
>  					      param.compression_format, regtxt) {
>  					block_copy(i915, ctx, e,
>  						   region1, region2,
> -						   tiling,
> -						   config->compression,
> -						   config->inplace,
> -						   config->surfcopy);
> +						   tiling, config);
>  				}
>  				free(regtxt);
>  			}
> @@ -480,6 +513,22 @@ igt_main_args("bf:pst:W:H:", NULL, help_str, opt_handler, NULL)
>  		block_copy_test(i915, &config, ctx, set);
>  	}
>  

Please add test descriptions before new test.

> +	igt_subtest_with_dynamic("ctrl-surf-copy-new-ctx") {
> +		struct test_config config = { .compression = true,
> +					      .surfcopy = true,
> +					      .new_ctx = true };
> +
> +		block_copy_test(i915, &config, ctx, set);
> +	}
> +

Same here.

> +	igt_subtest_with_dynamic("suspend-resume") {
> +		struct test_config config = { .compression = true,
> +					      .surfcopy = true,
> +					      .suspend_resume = true };
> +
> +		block_copy_test(i915, &config, ctx, set);
> +	}
> +
>  	igt_fixture {
>  		igt_disallow_hang(i915, hang);
>  		close(i915);
> -- 
> 2.32.0
> 

Regards,
Kamil


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