From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8F4B910E94E for ; Fri, 11 Mar 2022 12:13:34 +0000 (UTC) From: =?UTF-8?q?Zbigniew=20Kempczy=C5=84ski?= To: igt-dev@lists.freedesktop.org Date: Fri, 11 Mar 2022 13:13:15 +0100 Message-Id: <20220311121318.112757-4-zbigniew.kempczynski@intel.com> In-Reply-To: <20220311121318.112757-1-zbigniew.kempczynski@intel.com> References: <20220311121318.112757-1-zbigniew.kempczynski@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t 3/6] lib/i915: Introduce library intel_mocs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: From: Apoorva Singh Add new library intel_mocs for mocs settings. v2: make definitions and struct private (Kamil) Signed-off-by: Apoorva Singh Cc: Zbigniew Kempczyński Cc: Arjun Melkaveri Reviewed-by: Kamil Konieczny Reviewed-by: Zbigniew Kempczyński --- lib/i915/intel_mocs.c | 69 +++++++++++++++++++++++++++++++++++++++++++ lib/i915/intel_mocs.h | 12 ++++++++ lib/meson.build | 1 + 3 files changed, 82 insertions(+) create mode 100644 lib/i915/intel_mocs.c create mode 100644 lib/i915/intel_mocs.h diff --git a/lib/i915/intel_mocs.c b/lib/i915/intel_mocs.c new file mode 100644 index 0000000000..df541ab06b --- /dev/null +++ b/lib/i915/intel_mocs.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include "igt.h" +#include "i915/gem.h" +#include "intel_mocs.h" + +#define DG1_MOCS_UC_IDX 1 +#define DG1_MOCS_WB_IDX 5 +#define DG2_MOCS_UC_IDX 1 +#define DG2_MOCS_WB_IDX 3 +#define GEN12_MOCS_UC_IDX 3 +#define GEN12_MOCS_WB_IDX 2 +#define XY_BLOCK_COPY_BLT_MOCS_SHIFT 21 +#define XY_CTRL_SURF_COPY_BLT_MOCS_SHIFT 25 + +struct drm_i915_mocs_index { + uint8_t uc_index; + uint8_t wb_index; +}; + +static void get_mocs_index(int fd, struct drm_i915_mocs_index *mocs) +{ + uint16_t devid = intel_get_drm_devid(fd); + + /* + * Gen >= 12 onwards don't have a setting for PTE, + * so using I915_MOCS_PTE as mocs index may leads to + * some undefined MOCS behavior. + * This helper function is providing current UC as well + * as WB MOCS index based on platform. + */ + if (IS_DG1(devid)) { + mocs->uc_index = DG1_MOCS_UC_IDX; + mocs->wb_index = DG1_MOCS_WB_IDX; + } else if (IS_DG2(devid)) { + mocs->uc_index = DG2_MOCS_UC_IDX; + mocs->wb_index = DG2_MOCS_WB_IDX; + + } else if (IS_GEN12(devid)) { + mocs->uc_index = GEN12_MOCS_UC_IDX; + mocs->wb_index = GEN12_MOCS_WB_IDX; + } else { + mocs->uc_index = I915_MOCS_PTE; + mocs->wb_index = I915_MOCS_CACHED; + } +} + +/* BitField [6:1] represents index to MOCS Tables + * BitField [0] represents Encryption/Decryption + */ + +uint8_t intel_get_wb_mocs(int fd) +{ + struct drm_i915_mocs_index mocs; + + get_mocs_index(fd, &mocs); + return mocs.wb_index << 1; +} + +uint8_t intel_get_uc_mocs(int fd) +{ + struct drm_i915_mocs_index mocs; + + get_mocs_index(fd, &mocs); + return mocs.uc_index << 1; +} diff --git a/lib/i915/intel_mocs.h b/lib/i915/intel_mocs.h new file mode 100644 index 0000000000..255eac0ff3 --- /dev/null +++ b/lib/i915/intel_mocs.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef _INTEL_MOCS_H +#define _INTEL_MOCS_H + +uint8_t intel_get_wb_mocs(int fd); +uint8_t intel_get_uc_mocs(int fd); + +#endif /* _INTEL_MOCS_H */ diff --git a/lib/meson.build b/lib/meson.build index 3e43316d1e..a5fe91dc99 100644 --- a/lib/meson.build +++ b/lib/meson.build @@ -11,6 +11,7 @@ lib_sources = [ 'i915/gem_mman.c', 'i915/gem_vm.c', 'i915/intel_memory_region.c', + 'i915/intel_mocs.c', 'igt_collection.c', 'igt_color_encoding.c', 'igt_debugfs.c', -- 2.32.0