From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id DA9AE10E741 for ; Fri, 25 Nov 2022 11:56:29 +0000 (UTC) From: Swati Sharma To: igt-dev@lists.freedesktop.org Date: Fri, 25 Nov 2022 17:28:06 +0530 Message-Id: <20221125115808.13394-5-swati2.sharma@intel.com> In-Reply-To: <20221125115808.13394-1-swati2.sharma@intel.com> References: <20221125115808.13394-1-swati2.sharma@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t 4/6] lib/kms: Add helpers for VDSC Fractional BPP debugfs entry List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Helper functions are added for getting/setting VDSC Fractional BPP debugfs entry. Signed-off-by: Swati Sharma --- lib/igt_kms.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ lib/igt_kms.h | 4 +++ 2 files changed, 82 insertions(+) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index c7135790b..93f45410c 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -5592,6 +5592,20 @@ bool check_dsc_ycbcr420_debugfs(int drmfd, char *connector_name, return strstr(buf, check_str); } +static +bool check_dsc_fractional_bpp_debugfs(int drmfd, char *connector_name, + const char *check_str) +{ + char file_name[128] = {0}; + char buf[512]; + + sprintf(file_name, "%s/i915_dsc_fractional_bpp", connector_name); + + igt_debugfs_read(drmfd, file_name, buf); + + return strstr(buf, check_str); +} + static int write_dsc_debugfs(int drmfd, char *connector_name, const char *file_name, @@ -5623,6 +5637,29 @@ bool igt_is_dsc_supported(int drmfd, char *connector_name) return check_dsc_debugfs(drmfd, connector_name, "DSC_Sink_Support: yes"); } +/* + * igt_get_dsc_fractional_bpp_supported: + * @drmfd: A drm file descriptor + * @connector_name: Name of the libdrm connector we're going to use + * + * Returns: The dsc sink bpp precision. + */ +int igt_get_dsc_fractional_bpp_supported(int drmfd, char *connector_name) +{ + char file_name[128] = {0}; + char buf[24]; + char *start_loc; + int bpp_prec; + + sprintf(file_name, "%s/i915_dsc_fec_support", connector_name); + igt_debugfs_read(drmfd, file_name, buf); + + igt_assert(start_loc = strstr(buf, "DSC_Sink_BPP_Precision: ")); + igt_assert_eq(sscanf(start_loc, "DSC_Sink_BPP_Precision: %d", &bpp_prec), 1); + + return bpp_prec; +} + /* * igt_is_dsc_ycbcr420_supported: * @drmfd: A drm file descriptor @@ -5685,6 +5722,19 @@ bool igt_is_force_dsc_ycbcr420_enabled(int drmfd, char *connector_name) return check_dsc_ycbcr420_debugfs(drmfd, connector_name, "Force_DSC_YCBCR420_Enable: yes"); } +/* + * igt_is_force_dsc_fractional_bpp_enabled: + * @drmfd: A drm file descriptor + * @connector_name: Name of the libdrm connector we're going to use + * + * Returns: True if DSC Fractional BPP is force enabled (via debugfs) for the given connector, + * false otherwise. + */ +bool igt_is_force_dsc_fractional_bpp_enabled(int drmfd, char *connector_name) +{ + return check_dsc_fractional_bpp_debugfs(drmfd, connector_name, "Force_DSC_Fractional_BPP_Enable: yes"); +} + /* * igt_force_dsc_enable: * @drmfd: A drm file descriptor @@ -5709,6 +5759,18 @@ int igt_force_dsc_ycbcr420_enable(int drmfd, char *connector_name) return write_dsc_debugfs(drmfd, connector_name, "i915_dsc_ycbcr420", "1"); } +/* + * igt_force_dsc_fractional_bpp_enable: + * @drmfd: A drm file descriptor + * @connector_name: Name of the libdrm connector we're going to use + * + * Returns: 1 on success or negative error code, in case of failure. + */ +int igt_force_dsc_fractional_bpp_enable(int drmfd, char *connector_name) +{ + return write_dsc_debugfs(drmfd, connector_name, "i915_dsc_fractional_bpp", "1"); +} + /* * igt_force_dsc_enable_bpc: * @drmfd: A drm file descriptor @@ -5758,6 +5820,22 @@ int igt_get_dsc_ycbcr420_debugfs_fd(int drmfd, char *connector_name) return openat(igt_debugfs_dir(drmfd), file_name, O_WRONLY); } +/* + * igt_get_dsc_fractional_bpp_debugfs_fd: + * @drmfd: A drm file descriptor + * @connector_name: Name of the libdrm connector we're going to use + * + * Returns: fd of the DSC Fractional BPP debugfs for the given connector, else returns -1. + */ +int igt_get_dsc_fractional_bpp_debugfs_fd(int drmfd, char *connector_name) +{ + char file_name[128] = {0}; + + sprintf(file_name, "%s/i915_dsc_fractional_bpp", connector_name); + + return openat(igt_debugfs_dir(drmfd), file_name, O_WRONLY); +} + /* * igt_get_output_max_bpc: * @drmfd: A drm file descriptor diff --git a/lib/igt_kms.h b/lib/igt_kms.h index ccd8adf2c..990157bbc 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -977,15 +977,19 @@ bool igt_override_all_active_output_modes_to_fit_bw(igt_display_t *display); bool igt_is_dsc_supported(int drmfd, char *connector_name); bool igt_is_dsc_ycbcr420_supported(int drmfd, char *connector_name); +int igt_get_dsc_fractional_bpp_supported(int drmfd, char *connector_name); bool igt_is_fec_supported(int drmfd, char *connector_name); bool igt_is_dsc_enabled(int drmfd, char *connector_name); bool igt_is_force_dsc_enabled(int drmfd, char *connector_name); bool igt_is_force_dsc_ycbcr420_enabled(int drmfd, char *connector_name); +bool igt_is_force_dsc_fractional_bpp_enabled(int drmfd, char *connector_name); int igt_force_dsc_enable(int drmfd, char *connector_name); int igt_force_dsc_enable_bpc(int drmfd, char *connector_name, int bpc); int igt_force_dsc_ycbcr420_enable(int drmfd, char *connector_name); +int igt_force_dsc_fractional_bpp_enable(int drmfd, char *connector_name); int igt_get_dsc_debugfs_fd(int drmfd, char *connector_name); int igt_get_dsc_ycbcr420_debugfs_fd(int drmfd, char *connector_name); +int igt_get_dsc_fractional_bpp_debugfs_fd(int drmfd, char *connector_name); unsigned int igt_get_output_max_bpc(int drmfd, char *connector_name); unsigned int igt_get_pipe_current_bpc(int drmfd, enum pipe pipe); -- 2.25.1