[igt-dev] [PATCH i-g-t] tests/i915: skip gem_set_caching call for mtl

Kamil Konieczny kamil.konieczny at linux.intel.com
Thu Mar 9 16:41:32 UTC 2023


Hi Vikas,

On 2023-03-09 at 19:49:40 +0530, Vikas Srivastava wrote:
> Call to gem_set_caching skips the test since i915_gem_set_caching_ioctl is
> deprecated for MTL. To avoid this added the return value check for
> 0 or EOPNOTSUPP in __gem_set_caching.
> 
> FIXME: This is a temp solution to fix the IGT test issues where
> set caching call is used , there is alternate API available
> but support not yet available to use that.Once set_pat_index
> support available need to bring that change replacing this one.
> 
> Signed-off-by: Vikas Srivastava <vikas.srivastava at intel.com>
> ---
>  tests/i915/gem_caching.c            |  8 +++++---
>  tests/i915/gem_exec_flush.c         | 10 ++++++----
>  tests/i915/gem_exec_latency.c       |  4 +++-
>  tests/i915/gem_exec_suspend.c       |  7 +++++--
>  tests/i915/gem_render_tiled_blits.c |  5 +++--
>  tests/i915/gem_softpin.c            |  4 +++-
>  tests/i915/gem_userptr_blits.c      | 18 ++++++++++++++----

CI is reporting problem with this test, it often means
that running it with option --list failed.

>  tests/i915/gem_workarounds.c        |  8 +++++---
>  tests/i915/i915_pm_rpm.c            |  7 +++++--
>  tests/prime_vgem.c                  |  4 +++-
>  10 files changed, 52 insertions(+), 23 deletions(-)
> 
> diff --git a/tests/i915/gem_caching.c b/tests/i915/gem_caching.c
> index eb0170abc..3f6576c47 100644
> --- a/tests/i915/gem_caching.c
> +++ b/tests/i915/gem_caching.c
> @@ -136,7 +136,7 @@ igt_main
>  	struct intel_bb *ibb;
>  	data_t data = {0, };
>  	unsigned flags = TEST_BOTH;
> -	int i, j;
> +	int i, j, ret;
>  	uint8_t *cpu_ptr;
>  	uint8_t *gtt_ptr;
>  
> @@ -163,8 +163,10 @@ igt_main
>  		scratch_buf = intel_buf_create(data.bops, BO_SIZE/4, 1,
>  					       32, 0, I915_TILING_NONE, 0);
>  
> -		if (!gem_has_lmem(data.fd))
> -			gem_set_caching(data.fd, scratch_buf->handle, 1);
> +		if (!gem_has_lmem(data.fd)) {
> +			ret = __gem_set_caching(data.fd, scratch_buf->handle, 1);
> +			igt_require(ret == 0 || ret == -EOPNOTSUPP);
> +		}
>  
>  		staging_buf = intel_buf_create(data.bops, BO_SIZE/4, 1,
>  					       32, 0, I915_TILING_NONE, 0);
> diff --git a/tests/i915/gem_exec_flush.c b/tests/i915/gem_exec_flush.c
> index 40c58db2b..bd9fe4cda 100644
> --- a/tests/i915/gem_exec_flush.c
> +++ b/tests/i915/gem_exec_flush.c
> @@ -127,7 +127,7 @@ static void run(int fd, unsigned ring, int nchild, int timeout,
>  		bool snoop = false;
>  		uint32_t *ptr;
>  		uint32_t *map;
> -		int i;
> +		int i, ret;
>  		bool has_relocs = gem_has_relocations(fd);
>  
>  		memset(obj, 0, sizeof(obj));
> @@ -142,7 +142,8 @@ static void run(int fd, unsigned ring, int nchild, int timeout,
>  				       I915_GEM_DOMAIN_WC);
>  		} else {
>  			snoop = flags & COHERENT;
> -			gem_set_caching(fd, obj[0].handle, snoop);
> +			ret = __gem_set_caching(fd, obj[0].handle, snoop);
> +			igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  			map = gem_mmap__cpu(fd, obj[0].handle, 0, 4096, PROT_WRITE);
>  			gem_set_domain(fd, obj[0].handle,
>  				       I915_GEM_DOMAIN_CPU,
> @@ -394,14 +395,15 @@ static void batch(int fd, unsigned ring, int nchild, int timeout,
>  		unsigned long cycles = 0;
>  		uint32_t *ptr;
>  		uint32_t *map;
> -		int i;
> +		int i, ret;
>  		bool has_relocs = gem_has_relocations(fd);
>  
>  		memset(obj, 0, sizeof(obj));
>  		obj[0].handle = gem_create(fd, 4096);
>  		obj[0].flags |= EXEC_OBJECT_WRITE;
>  
> -		gem_set_caching(fd, obj[0].handle, !!(flags & COHERENT));
> +		ret = __gem_set_caching(fd, obj[0].handle, !!(flags & COHERENT));
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  		map = gem_mmap__cpu(fd, obj[0].handle, 0, 4096, PROT_WRITE);
>  
>  		gem_set_domain(fd, obj[0].handle,
> diff --git a/tests/i915/gem_exec_latency.c b/tests/i915/gem_exec_latency.c
> index fcdf7787b..f24e95f33 100644
> --- a/tests/i915/gem_exec_latency.c
> +++ b/tests/i915/gem_exec_latency.c
> @@ -756,6 +756,7 @@ static void context_switch(int i915, const intel_ctx_t *ctx,
>  	const uint32_t mmio_base = gem_engine_mmio_base(i915, e->name);
>  	struct igt_mean mean;
>  	const intel_ctx_t *tmp_ctx[2];
> +	int ret;
>  
>  	igt_require(mmio_base);
>  	igt_require(gem_class_has_mutable_submission(i915, e->class));
> @@ -770,7 +771,8 @@ static void context_switch(int i915, const intel_ctx_t *ctx,
>  
>  	memset(obj, 0, sizeof(obj));
>  	obj[0].handle = gem_create(i915, 4096);
> -	gem_set_caching(i915, obj[0].handle, 1);
> +	ret = __gem_set_caching(i915, obj[0].handle, 1);
> +	igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  	results = gem_mmap__cpu(i915, obj[0].handle, 0, 4096, PROT_READ);
>  	gem_set_domain(i915, obj[0].handle, I915_GEM_DOMAIN_CPU, 0);
>  
> diff --git a/tests/i915/gem_exec_suspend.c b/tests/i915/gem_exec_suspend.c
> index 3b59966a1..2b5e47725 100644
> --- a/tests/i915/gem_exec_suspend.c
> +++ b/tests/i915/gem_exec_suspend.c
> @@ -86,6 +86,7 @@ static void run_test(int fd, const intel_ctx_t *ctx,
>  	unsigned nengine;
>  	igt_spin_t *spin = NULL;
>  	uint64_t ahnd = get_reloc_ahnd(fd, 0);
> +	int ret;
>  
>  	nengine = 0;
>  	if (engine == ALL_ENGINES) {
> @@ -116,8 +117,10 @@ static void run_test(int fd, const intel_ctx_t *ctx,
>  
>  	memset(obj, 0, sizeof(obj));
>  	obj[0].handle = gem_create_in_memory_regions(fd, 4096, region);
> -	if (!gem_has_lmem(fd))
> -		gem_set_caching(fd, obj[0].handle, !!(flags & CACHED));
> +	if (!gem_has_lmem(fd)) {
> +		ret = __gem_set_caching(fd, obj[0].handle, !!(flags & CACHED));
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
> +	}
>  	obj[0].flags |= EXEC_OBJECT_WRITE;
>  	obj[1].handle = gem_create_in_memory_regions(fd, 4096, region);
>  	gem_write(fd, obj[1].handle, 0, &bbe, sizeof(bbe));
> diff --git a/tests/i915/gem_render_tiled_blits.c b/tests/i915/gem_render_tiled_blits.c
> index eae06a332..c3bf1beaf 100644
> --- a/tests/i915/gem_render_tiled_blits.c
> +++ b/tests/i915/gem_render_tiled_blits.c
> @@ -97,7 +97,7 @@ static void run_test (int fd, int count)
>  	struct intel_bb *ibb;
>  	uint32_t *start_val;
>  	struct intel_buf *bufs;
> -	int i, j;
> +	int i, j, ret;
>  	uint32_t devid;
>  
>  	devid = intel_get_drm_devid(fd);
> @@ -117,7 +117,8 @@ static void run_test (int fd, int count)
>  	intel_buf_init(bops, &linear, WIDTH, HEIGHT, 32, 0,
>  		       I915_TILING_NONE, I915_COMPRESSION_NONE);
>  	if (snoop) {
> -		gem_set_caching(fd, linear.handle, 1);
> +		ret = __gem_set_caching(fd, linear.handle, 1);
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  		igt_info("Using a snoop linear buffer for comparisons\n");
>  	}
>  
> diff --git a/tests/i915/gem_softpin.c b/tests/i915/gem_softpin.c
> index c29bfd43d..ad6fb6b94 100644
> --- a/tests/i915/gem_softpin.c
> +++ b/tests/i915/gem_softpin.c
> @@ -518,6 +518,7 @@ static void test_evict_snoop(int fd, unsigned int flags)
>  	struct drm_i915_gem_execbuffer2 execbuf;
>  	struct drm_i915_gem_exec_object2 object[2];
>  	uint64_t hole;
> +	int ret;
>  
>  	igt_require(!gem_has_llc(fd));
>  	igt_require(!gem_uses_ppgtt(fd));
> @@ -537,7 +538,8 @@ static void test_evict_snoop(int fd, unsigned int flags)
>  	/* Create a snoop + uncached pair */
>  	object[0].handle = gem_create(fd, 4096);
>  	object[0].flags = EXEC_OBJECT_PINNED;
> -	gem_set_caching(fd, object[0].handle, 1);
> +	ret = __gem_set_caching(fd, object[0].handle, 1);
> +	igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  	object[1].handle = gem_create(fd, 4096);
>  	object[1].flags = EXEC_OBJECT_PINNED;
>  	gem_write(fd, object[1].handle, 4096-sizeof(bbe), &bbe, sizeof(bbe));
> diff --git a/tests/i915/gem_userptr_blits.c b/tests/i915/gem_userptr_blits.c
> index 483570d0a..3dd4f68e2 100644
> --- a/tests/i915/gem_userptr_blits.c
> +++ b/tests/i915/gem_userptr_blits.c
> @@ -1140,15 +1140,17 @@ static void test_relocations(int fd)
>  	struct drm_i915_gem_execbuffer2 exec;
>  	unsigned size;
>  	void *ptr;
> -	int i;
> +	int i, ret;
>  
>  	size = PAGE_SIZE + ALIGN(sizeof(*reloc)*256, PAGE_SIZE);
>  
>  	memset(&obj, 0, sizeof(obj));
>  	igt_assert(posix_memalign(&ptr, PAGE_SIZE, size) == 0);
>  	gem_userptr(fd, ptr, size, 0, userptr_flags, &obj.handle);
> -	if (!gem_has_llc(fd))
> -		gem_set_caching(fd, obj.handle, 0);
> +	if (!gem_has_llc(fd)) {
> +		ret = __gem_set_caching(fd, obj.handle, 0);
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
> +	}
>  	*(uint32_t *)ptr = MI_BATCH_BUFFER_END;
>  
>  	reloc = (typeof(reloc))((char *)ptr + PAGE_SIZE);
> @@ -2355,8 +2357,13 @@ const char *help_str = "  -c\tBuffer count\n";
>  igt_main_args("c:", NULL, help_str, opt_handler, NULL)
>  {
>  	int size = sizeof(linear);
> +	uint16_t devid;
> +	bool has_set_caching;
>  	igt_fd_t(fd);
>  
> +	devid = intel_get_drm_devid(fd);
> +	has_set_caching = IS_METEORLAKE(devid) ? false : true;
> +

Please put it inside fixture after fd open.

Btw why not make it a lib function like other gem_has_ functions ?
Then you can replace all those checks of NOTSUP with

	has_set_caching(intel_get_drm_devid(fd))

and acting accordingly.
Second thing, is it ok to just not setting caching, will tests
pass then on MTL ?

Regards,
Kamil

>  	igt_fixture {
>  		unsigned int mmo_max = 0;
>  
> @@ -2417,8 +2424,11 @@ igt_main_args("c:", NULL, help_str, opt_handler, NULL)
>  			test_sd_probe(fd);
>  		}
>  
> -		igt_subtest("set-cache-level")
> +		igt_subtest("set-cache-level") {
> +			igt_require_f((has_set_caching),
> +				      "set_caching not supported on this platform");
>  			test_set_caching(fd);
> +		}
>  
>  		igt_subtest("userfault")
>  			test_userfault(fd);
> diff --git a/tests/i915/gem_workarounds.c b/tests/i915/gem_workarounds.c
> index 5fb2d73fd..3a580f59f 100644
> --- a/tests/i915/gem_workarounds.c
> +++ b/tests/i915/gem_workarounds.c
> @@ -92,7 +92,7 @@ static int workaround_fail_count(int i915, const intel_ctx_t *ctx)
>  	uint32_t result_sz, batch_sz;
>  	uint32_t *base, *out;
>  	igt_spin_t *spin;
> -	int fw, fail = 0;
> +	int fw, fail = 0, ret;
>  	uint64_t ahnd = get_reloc_ahnd(i915, ctx->id);
>  
>  	reloc = calloc(num_wa_regs, sizeof(*reloc));
> @@ -106,8 +106,10 @@ static int workaround_fail_count(int i915, const intel_ctx_t *ctx)
>  
>  	memset(obj, 0, sizeof(obj));
>  	obj[0].handle = gem_create(i915, result_sz);
> -	if (!gem_has_lmem(i915))
> -		gem_set_caching(i915, obj[0].handle, I915_CACHING_CACHED);
> +	if (!gem_has_lmem(i915)) {
> +		ret = __gem_set_caching(i915, obj[0].handle, I915_CACHING_CACHED);
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
> +	}
>  	obj[1].handle = gem_create(i915, batch_sz);
>  	obj[1].relocs_ptr = to_user_pointer(reloc);
>  	obj[1].relocation_count = !ahnd ? num_wa_regs : 0;
> diff --git a/tests/i915/i915_pm_rpm.c b/tests/i915/i915_pm_rpm.c
> index 74935430c..9c372e43d 100644
> --- a/tests/i915/i915_pm_rpm.c
> +++ b/tests/i915/i915_pm_rpm.c
> @@ -1977,6 +1977,7 @@ static void pm_test_caching(void)
>  {
>  	uint32_t handle;
>  	uint8_t *gem_buf;
> +	int ret;
>  
>  	uint32_t i;
>  	uint32_t default_cache_level;
> @@ -1995,7 +1996,8 @@ static void pm_test_caching(void)
>  
>  	for (i = 0; i < ARRAY_SIZE(cache_levels); i++) {
>  		igt_assert(wait_for_suspended());
> -		gem_set_caching(drm_fd, handle, default_cache_level);
> +		ret = __gem_set_caching(drm_fd, handle, default_cache_level);
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  
>  		/* Ensure we bind the vma into the GGTT */
>  		memset(gem_buf, 16 << i, gtt_obj_max_size);
> @@ -2008,7 +2010,8 @@ static void pm_test_caching(void)
>  		 */
>  		igt_debug("Setting cache level %u\n", cache_levels[i]);
>  		igt_assert(wait_for_suspended());
> -		gem_set_caching(drm_fd, handle, cache_levels[i]);
> +		ret = __gem_set_caching(drm_fd, handle, cache_levels[i]);
> +		igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  	}
>  
>  	igt_assert(munmap(gem_buf, gtt_obj_max_size) == 0);
> diff --git a/tests/prime_vgem.c b/tests/prime_vgem.c
> index 06be273c0..caef8040f 100644
> --- a/tests/prime_vgem.c
> +++ b/tests/prime_vgem.c
> @@ -316,6 +316,7 @@ static void test_userptr(int vgem, int i915)
>  	};
>  	struct vgem_bo scratch;
>  	uint32_t *ptr;
> +	int ret;
>  
>  	igt_require(has_userptr(i915));
>  
> @@ -330,7 +331,8 @@ static void test_userptr(int vgem, int i915)
>  	*ptr = MI_BATCH_BUFFER_END;
>  
>  	gem_userptr(i915, ptr, scratch.size, 0, 0, &obj.handle);
> -	gem_set_caching(i915, obj.handle, I915_CACHING_NONE); /* for !llc exec */
> +	ret = __gem_set_caching(i915, obj.handle, I915_CACHING_NONE); /* for !llc exec */
> +	igt_require(ret == 0 || ret == -EOPNOTSUPP);
>  
>  	gem_execbuf(i915, &execbuf);
>  	gem_close(i915, obj.handle);
> -- 
> 2.25.1
> 


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