Re: [igt-dev] [PATCH i-g-t v3 7/8] i915_pm_rpm: Extend gem_execbuf test with D3Cold

[Rodrigo Vivi <rodrigo.vivi@intel.com>]

On Wed, May 04, 2022 at 07:28:59PM +0530, Anshuman Gupta wrote:
> Added d3cold dynamic subtest to gem_execbuf with device class
> memory region. It test both D3Cold-{VRAM_SR, Off} by using
> d3cold_sr_lmem_threshold i915_params debugfs.
> 
> v2:
> - Two different subtest d3cold-off and d3cold-vrsr. [Rodrigo]
> v3:
> - Skip the d3cold-vram-sr test when lmem_threshold is not available.
> 
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

> ---
>  tests/i915/i915_pm_rpm.c | 34 ++++++++++++++++++++++++++++++++--
>  1 file changed, 32 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/i915/i915_pm_rpm.c b/tests/i915/i915_pm_rpm.c
> index b16d61643..a062fde88 100644
> --- a/tests/i915/i915_pm_rpm.c
> +++ b/tests/i915/i915_pm_rpm.c
> @@ -1350,10 +1350,11 @@ static void submit_blt_cmd(uint32_t dst_handle, int dst_size,
>  }
>  
>  /* Make sure we can submit a batch buffer and verify its result. */
> -static void gem_execbuf_subtest(struct drm_i915_gem_memory_class_instance *mem_regions)
> +static void gem_execbuf_subtest(struct drm_i915_gem_memory_class_instance *mem_regions, bool d3cold)
>  {
>  	int x, y;
>  	uint32_t handle;
> +	struct pci_device *root;
>  	int bpp = 4;
>  	int pitch = 128 * bpp;
>  	int dst_size = 128 * 128 * bpp; /* 128x128 square */
> @@ -1375,6 +1376,9 @@ static void gem_execbuf_subtest(struct drm_i915_gem_memory_class_instance *mem_r
>  	memset(cpu_buf, 0, dst_size);
>  	gem_write(drm_fd, handle, 0, cpu_buf, dst_size);
>  
> +	if (d3cold)
> +		root = setup_d3cold_and_get_root_port();
> +
>  	/* Now suspend and try it. */
>  	disable_all_screens_and_wait(&ms_data);
>  
> @@ -1383,8 +1387,15 @@ static void gem_execbuf_subtest(struct drm_i915_gem_memory_class_instance *mem_r
>  		       &presumed_offset);
>  	igt_assert(wait_for_suspended());
>  
> +	if (d3cold)
> +		igt_assert(wait_for_d3cold(root));
> +
>  	gem_read(drm_fd, handle, 0, cpu_buf, dst_size);
>  	igt_assert(wait_for_suspended());
> +
> +	if (d3cold)
> +		igt_assert(wait_for_d3cold(root));
> +
>  	for (y = 0; y < 128; y++) {
>  		for (x = 0; x < 128; x++) {
>  			uint32_t px = cpu_buf[y * 128 + x];
> @@ -1423,6 +1434,9 @@ static void gem_execbuf_subtest(struct drm_i915_gem_memory_class_instance *mem_r
>  
>  	disable_all_screens_and_wait(&ms_data);
>  
> +	if (d3cold)
> +		igt_assert(wait_for_d3cold(root));
> +
>  	memset(cpu_buf, 0, dst_size);
>  	gem_read(drm_fd, handle, 0, cpu_buf, dst_size);
>  	for (y = 0; y < 128; y++) {
> @@ -2182,7 +2196,23 @@ igt_main_args("", long_options, help_str, opt_handler, NULL)
>  	igt_subtest_with_dynamic("gem-execbuf") {
>  		for_each_memory_region(r, drm_fd) {
>  			igt_dynamic_f("%s", r->name)
> -				gem_execbuf_subtest(&r->ci);
> +				gem_execbuf_subtest(&r->ci, false);
> +
> +			if (r->ci.memory_class == I915_MEMORY_CLASS_SYSTEM)
> +				continue;
> +
> +			igt_dynamic_f("%s-%s", "d3cold-off", r->name) {
> +				if (lmem_threshold >= 0)
> +					set_d3cold_sr_lmem_threshold(debugfs, 300);
> +
> +				gem_execbuf_subtest(&r->ci, true);
> +			}
> +
> +			igt_dynamic_f("%s-%s", "d3cold-vrsr", r->name) {
> +				igt_require(lmem_threshold >= 0);
> +				set_d3cold_sr_lmem_threshold(debugfs, 0);
> +				gem_execbuf_subtest(&r->ci, true);
> +			}
>  		}
>  	}
>  	igt_subtest("gem-idle")
> -- 
> 2.26.2
>