From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (unknown [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4AAE510E6C7 for ; Fri, 28 Jul 2023 09:35:05 +0000 (UTC) From: Swati Sharma To: igt-dev@lists.freedesktop.org Date: Fri, 28 Jul 2023 15:04:48 +0530 Message-Id: <20230728093449.950073-10-swati2.sharma@intel.com> In-Reply-To: <20230728093449.950073-1-swati2.sharma@intel.com> References: <20230728093449.950073-1-swati2.sharma@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [v5 09/10] tests/i915/kms_dsc: enable validation for vdsc fractional bpp List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Intel hardware supports fractional bpp from display_ver >= 14. To test fractional bpp, debugfs entry (force_dsc_fractional_bpp) is introduced. From the IGT; we are setting this debugfs entry. However, before setting this debugfs entry, we are checking capability i.e. fractional bpp is supported by platform and sink both. In driver, if force_dsc_fractional_bpp is set then while iterating over output bpp with fractional step size we will continue if output_bpp is computed as integer and allow DSC iff compressed bpp is fractional. v2: -change in igt_describe (Ankit) v3: -rebase v4: -add wrapper for source support of fractional bpp (Ankit) v5: -fix if() condition (Ankit) Signed-off-by: Swati Sharma Reviewed-by: Ankit Nautiyal --- tests/i915/kms_dsc.c | 28 ++++++++++++++- tests/i915/kms_dsc_helper.c | 71 +++++++++++++++++++++++++++++++++++++ tests/i915/kms_dsc_helper.h | 4 +++ 3 files changed, 102 insertions(+), 1 deletion(-) diff --git a/tests/i915/kms_dsc.c b/tests/i915/kms_dsc.c index 7c51c2ddc..f60f587ee 100644 --- a/tests/i915/kms_dsc.c +++ b/tests/i915/kms_dsc.c @@ -41,6 +41,7 @@ IGT_TEST_DESCRIPTION("Test to validate display stream compression"); #define TEST_DSC_BPC (1<<0) #define TEST_DSC_FORMAT (1<<1) #define TEST_DSC_OUTPUT_FORMAT (1<<2) +#define TEST_DSC_FRACTIONAL_BPP (1<<3) /* * Starting from gen11, intel driver supports DSC1.1. For validating @@ -48,7 +49,7 @@ IGT_TEST_DESCRIPTION("Test to validate display stream compression"); * If the sink does support DSC, we will validate different * scenarios by forcing dsc. Outline of the tests is as follows: * (i) basic modeset (ii) input bpc (iii) pixel formats - * (iv) output formats + * (iv) output formats (v) fractional bpp * In the basic subtest, we perform modeset with default parameters. * Input bpc and pixel formats subtests, we perform modeset * with different input bpc (12/10/8) and pixel formats (YUV/RGB), @@ -57,6 +58,9 @@ IGT_TEST_DESCRIPTION("Test to validate display stream compression"); * However, in the output-format subtest, we verify different * output formats (RGB/YCBCR444/YCBCR420). Also, test is added to * validate output formats with different input bpc (12/10/8). + * Lastly, fractional bpp is tested with default parameters. + * In this, driver will ignore integer compressed bpp value and + * will do modeset with fractional bpp only. */ @@ -161,6 +165,12 @@ static void update_display(data_t *data, uint32_t test_type) force_dsc_output_format(data->drm_fd, data->output, data->output_format); } + if (test_type & TEST_DSC_FRACTIONAL_BPP) { + igt_debug("DSC fractional bpp is supported on %s\n", data->output->name); + save_force_dsc_fractional_bpp_en(data->drm_fd, data->output); + force_dsc_fractional_bpp_enable(data->drm_fd, data->output); + } + igt_output_set_pipe(output, data->pipe); primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); @@ -220,6 +230,7 @@ static void update_display(data_t *data, uint32_t test_type) enabled ? "ON" : "OFF"); restore_force_dsc_en(); + restore_force_dsc_fractional_bpp_en(); if (test_type & TEST_DSC_BPC) { current_bpc = igt_get_pipe_current_bpc(data->drm_fd, data->pipe); @@ -271,6 +282,11 @@ static void test_dsc(data_t *data, uint32_t test_type, int bpc, data->output, data->output_format))) continue; + if ((test_type & TEST_DSC_FRACTIONAL_BPP) && + (!is_dsc_fractional_bpp_supported(data->disp_ver, + data->drm_fd, data->output))) + continue; + if (test_type & TEST_DSC_OUTPUT_FORMAT) snprintf(&name[0][0], LEN, "-%s", kmstest_dsc_output_format_str(data->output_format)); if (test_type & TEST_DSC_FORMAT) @@ -381,6 +397,16 @@ igt_main_args("l", NULL, help_str, opt_handler, &data) } } + igt_describe("Tests fractional compressed bpp functionality if supported " + "by a connector by forcing fractional_bpp on all connectors that support it " + "with default parameter. While finding the optimum compressed bpp, driver will " + "skip over the compressed bpps with integer values. It will go ahead with DSC, " + "iff compressed bpp is fractional, failing in which, it will fail the commit."); + igt_subtest_with_dynamic("dsc-fractional-bpp") + test_dsc(&data, TEST_DSC_FRACTIONAL_BPP, + DEFAULT_BPC, DRM_FORMAT_XRGB8888, + DSC_FORMAT_RGB); + igt_fixture { igt_display_fini(&data.display); drm_close_driver(data.drm_fd); diff --git a/tests/i915/kms_dsc_helper.c b/tests/i915/kms_dsc_helper.c index ae59edb6b..a396a8489 100644 --- a/tests/i915/kms_dsc_helper.c +++ b/tests/i915/kms_dsc_helper.c @@ -6,7 +6,9 @@ #include "kms_dsc_helper.h" static bool force_dsc_en_orig; +static bool force_dsc_fractional_bpp_en_orig; static int force_dsc_restore_fd = -1; +static int force_dsc_fractional_bpp_restore_fd = -1; void force_dsc_enable(int drmfd, igt_output_t *output) { @@ -51,6 +53,7 @@ void restore_force_dsc_en(void) void kms_dsc_exit_handler(int sig) { restore_force_dsc_en(); + restore_force_dsc_fractional_bpp_en(); } bool is_dsc_supported_by_source(int drmfd) @@ -143,3 +146,71 @@ bool is_dsc_output_format_supported(int drmfd, int disp_ver, igt_output_t *outpu return true; } + +void force_dsc_fractional_bpp_enable(int drmfd, igt_output_t *output) +{ + int ret; + + igt_debug("Forcing DSC Fractional BPP on %s\n", output->name); + ret = igt_force_dsc_fractional_bpp_enable(drmfd, output->name); + igt_assert_f(ret == 0, "forcing dsc fractional bpp debugfs_write failed\n"); +} + +void save_force_dsc_fractional_bpp_en(int drmfd, igt_output_t *output) +{ + force_dsc_fractional_bpp_en_orig = + igt_is_force_dsc_fractional_bpp_enabled(drmfd, output->name); + force_dsc_fractional_bpp_restore_fd = + igt_get_dsc_fractional_bpp_debugfs_fd(drmfd, output->name); + igt_assert(force_dsc_fractional_bpp_restore_fd >= 0); +} + +void restore_force_dsc_fractional_bpp_en(void) +{ + if (force_dsc_fractional_bpp_restore_fd < 0) + return; + + igt_debug("Restoring DSC Fractional BPP enable\n"); + igt_assert(write(force_dsc_fractional_bpp_restore_fd, force_dsc_fractional_bpp_en_orig ? "1" : "0", 1) == 1); + + close(force_dsc_fractional_bpp_restore_fd); + force_dsc_fractional_bpp_restore_fd = -1; +} + +static +bool is_dsc_fractional_bpp_supported_by_sink(int drmfd, char *connector_name) +{ + int bpp_prec; + + bpp_prec = igt_get_dsc_fractional_bpp_supported(drmfd, connector_name); + + if (bpp_prec == 1) + return false; + + return true; +} + +static +bool is_dsc_fractional_bpp_supported_by_source(int disp_ver) +{ + if (disp_ver < 14) { + igt_debug("DSC fractional bpp not supported on D13 and older platforms\n"); + return false; + } + + return true; +} + +bool is_dsc_fractional_bpp_supported(int disp_ver, int drmfd, igt_output_t *output) +{ + if (is_dsc_fractional_bpp_supported_by_source(disp_ver)) { + if (!is_dsc_fractional_bpp_supported_by_sink(drmfd, output->name)) { + igt_debug("DSC fractional bpp not supported on connector %s\n", + output->name); + return false; + } else + return true; + } + + return false; +} diff --git a/tests/i915/kms_dsc_helper.h b/tests/i915/kms_dsc_helper.h index 28ed56d83..4dbd88fe7 100644 --- a/tests/i915/kms_dsc_helper.h +++ b/tests/i915/kms_dsc_helper.h @@ -34,5 +34,9 @@ void force_dsc_output_format(int drmfd, igt_output_t *output, enum dsc_output_format output_format); bool is_dsc_output_format_supported(int disp_ver, int drmfd, igt_output_t *output, enum dsc_output_format output_format); +void force_dsc_fractional_bpp_enable(int drmfd, igt_output_t *output); +void save_force_dsc_fractional_bpp_en(int drmfd, igt_output_t *output); +void restore_force_dsc_fractional_bpp_en(void); +bool is_dsc_fractional_bpp_supported(int disp_ver, int drmfd, igt_output_t *output); #endif -- 2.25.1