From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 60CAD10E522 for ; Thu, 24 Aug 2023 10:40:23 +0000 (UTC) From: =?UTF-8?q?Jouni=20H=C3=B6gander?= To: igt-dev@lists.freedesktop.org Date: Thu, 24 Aug 2023 13:40:04 +0300 Message-Id: <20230824104007.931922-2-jouni.hogander@intel.com> In-Reply-To: <20230824104007.931922-1-jouni.hogander@intel.com> References: <20230824104007.931922-1-jouni.hogander@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t v9 1/4] lib/i915/fbc: Add fbc helpers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kunal Joshi Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Add some fbc helpes into a library to be used by kms_frontbuffer_tracking and other tests as well. v5: Handle stolen memory not initialised v4: Split testcase modification into a separate patch v3: Add library function descriptions v2: Moved into libigt instead of static kms_fbc_helper Signed-off-by: Jouni Högander Reviewed-by: Kunal Joshi --- lib/i915/intel_fbc.c | 97 ++++++++++++++++++++++++++++++++++++++++++++ lib/i915/intel_fbc.h | 18 ++++++++ lib/meson.build | 1 + 3 files changed, 116 insertions(+) create mode 100644 lib/i915/intel_fbc.c create mode 100644 lib/i915/intel_fbc.h diff --git a/lib/i915/intel_fbc.c b/lib/i915/intel_fbc.c new file mode 100644 index 000000000..3fac60087 --- /dev/null +++ b/lib/i915/intel_fbc.c @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023 Intel Corporation + */ + +#include + +#include "igt.h" + +#include "intel_fbc.h" + +#define FBC_STATUS_BUF_LEN 128 + +/** + * intel_fbc_supported_on_chipset: + * @device: fd of the device + * @pipe: Display pipe + * + * Check if FBC is supported by chipset on given pipe. + * + * Returns: + * true if FBC is supported and false otherwise. + */ +bool intel_fbc_supported_on_chipset(int device, enum pipe pipe) +{ + char buf[FBC_STATUS_BUF_LEN]; + int dir; + + dir = igt_debugfs_pipe_dir(device, pipe, O_DIRECTORY); + igt_require_fd(dir); + igt_debugfs_simple_read(dir, "i915_fbc_status", buf, sizeof(buf)); + close(dir); + if (*buf == '\0') + return false; + + return !strstr(buf, "FBC unsupported on this chipset\n") && + !strstr(buf, "stolen memory not initialised\n"); +} + +static bool _intel_fbc_is_enabled(int device, enum pipe pipe, int log_level, char *last_fbc_buf) +{ + char buf[FBC_STATUS_BUF_LEN]; + bool print = true; + int dir; + + dir = igt_debugfs_pipe_dir(device, pipe, O_DIRECTORY); + igt_require_fd(dir); + igt_debugfs_simple_read(dir, "i915_fbc_status", buf, sizeof(buf)); + close(dir); + if (log_level != IGT_LOG_DEBUG) + last_fbc_buf[0] = '\0'; + else if (strcmp(last_fbc_buf, buf)) + strcpy(last_fbc_buf, buf); + else + print = false; + + if (print) + igt_log(IGT_LOG_DOMAIN, log_level, "fbc_is_enabled():\n%s\n", buf); + + return strstr(buf, "FBC enabled\n"); +} + +/** + * intel_fbc_is_enabled: + * @device: fd of the device + * @pipe: Display pipe + * @log_level: Wanted loglevel + * + * Check if FBC is enabled on given pipe. Loglevel can be used to + * control at which loglevel current state is printed out. + * + * Returns: + * true if FBC is enabled. + */ +bool intel_fbc_is_enabled(int device, enum pipe pipe, int log_level) +{ + char last_fbc_buf[FBC_STATUS_BUF_LEN] = {'\0'}; + + return _intel_fbc_is_enabled(device, pipe, log_level, last_fbc_buf); +} + +/** + * intel_fbc_wait_until_enabled: + * @device: fd of the device + * @pipe: Display pipe + * + * Wait until fbc is enabled. Used timeout is constant 2 seconds. + * + * Returns: + * true if FBC got enabled. + */ +bool intel_fbc_wait_until_enabled(int device, enum pipe pipe) +{ + char last_fbc_buf[FBC_STATUS_BUF_LEN] = {'\0'}; + + return igt_wait(_intel_fbc_is_enabled(device, pipe, IGT_LOG_DEBUG, last_fbc_buf), 2000, 1); +} diff --git a/lib/i915/intel_fbc.h b/lib/i915/intel_fbc.h new file mode 100644 index 000000000..995dc7f1e --- /dev/null +++ b/lib/i915/intel_fbc.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef INTEL_FBC_H +#define INTEL_FBC_H + +#include "igt.h" + +#define intel_fbc_enable(device) igt_set_module_param_int(device, "enable_fbc", 1) +#define intel_fbc_disable(device) igt_set_module_param_int(device, "enable_fbc", 0) + +bool intel_fbc_supported_on_chipset(int device, enum pipe pipe); +bool intel_fbc_wait_until_enabled(int device, enum pipe pipe); +bool intel_fbc_is_enabled(int device, enum pipe pipe, int log_level); + +#endif diff --git a/lib/meson.build b/lib/meson.build index b7bfcf4f0..748667c10 100644 --- a/lib/meson.build +++ b/lib/meson.build @@ -12,6 +12,7 @@ lib_sources = [ 'i915/gem_mman.c', 'i915/gem_vm.c', 'i915/intel_decode.c', + 'i915/intel_fbc.c', 'i915/intel_memory_region.c', 'i915/i915_crc.c', 'igt_collection.c', -- 2.34.1