From patchwork Thu Jan 13 23:51:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Harrison X-Patchwork-Id: 12713197 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 762F6C433EF for ; Thu, 13 Jan 2022 23:51:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3428610E832; Thu, 13 Jan 2022 23:51:23 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id CDC2910E80F; Thu, 13 Jan 2022 23:51:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1642117880; x=1673653880; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1WEs6r6HDgbA+0KGkja1OnEfKMBnE2yrbDiWkHfI0jQ=; b=K/ayYDMvobTbQxaHByCnUg+eFlSVJXkBGv4lvMh16n3DL9TPwn19quyL RoQOEJvcKEEmVX7VlbyGPc/v5Qwf4xQibGymiw40PQ66NYUhkKp46mdOK OMk6coNsqSmF2UpQsDPJ4Q8Q/64mtSmIWyZyWIvHMTeP4GoY5Q5ZQvfRx 3W5H8S43fJLwmWDNFFM1Sy4DRN2/RiGXalpxWeNdgwe80PLMTvYEE7PVA ivLQnDgFzxrlvMTUWCnww4JnxSJFFozWycJtoDXfj63Lh+IEKBu71jw1s TpyYnbiwHknaaHwZ8FOmVs/6cdpqLHkcRYALwoIan/BSvwiQy3Jx1ns84 Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10226"; a="268502288" X-IronPort-AV: E=Sophos;i="5.88,286,1635231600"; d="scan'208";a="268502288" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jan 2022 15:51:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,286,1635231600"; d="scan'208";a="620783010" Received: from relo-linux-5.jf.intel.com ([10.165.21.134]) by fmsmga002.fm.intel.com with ESMTP; 13 Jan 2022 15:51:19 -0800 From: John.C.Harrison@Intel.com To: IGT-Dev@Lists.FreeDesktop.Org Date: Thu, 13 Jan 2022 15:51:10 -0800 Message-Id: <20220113235118.1575410-8-John.C.Harrison@Intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220113235118.1575410-1-John.C.Harrison@Intel.com> References: <20220113235118.1575410-1-John.C.Harrison@Intel.com> MIME-Version: 1.0 Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH v4 i-g-t 07/15] lib/store: Refactor common store code into helper function X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-GFX@Lists.FreeDesktop.Org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: John Harrison A lot of tests use almost identical code for creating a batch buffer which does a single write to memory and another is about to be added. Instead, move the most generic version into a common helper function. Unfortunately, the other instances are all subtly different enough to make it not so trivial to try to use the helper. It could be done but it is unclear if it is worth the effort at this point. This patch proves the concept, if people like it enough then it can be extended. v2: Fix up object address vs store offset confusion (with help from Zbigniew K). v3: Cope with >32bit store_offset (review feedback from Matthew Brost). Signed-off-by: John Harrison Reviewed-by: Matthew Brost --- lib/igt_store.c | 100 ++++++++++++++++++++++++++++++++++++ lib/igt_store.h | 12 +++++ lib/meson.build | 1 + tests/i915/gem_exec_fence.c | 77 ++------------------------- tests/i915/i915_hangman.c | 1 + 5 files changed, 119 insertions(+), 72 deletions(-) create mode 100644 lib/igt_store.c create mode 100644 lib/igt_store.h diff --git a/lib/igt_store.c b/lib/igt_store.c new file mode 100644 index 000000000..98c6c4fbd --- /dev/null +++ b/lib/igt_store.c @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021 Intel Corporation + */ + +#include "i915/gem_create.h" +#include "igt_core.h" +#include "drmtest.h" +#include "igt_store.h" +#include "intel_chipset.h" +#include "intel_reg.h" +#include "ioctl_wrappers.h" +#include "lib/intel_allocator.h" + +/** + * SECTION:igt_store_word + * @short_description: Library for writing a value to memory + * @title: StoreWord + * @include: igt.h + * + * A lot of igt testcases need some mechanism for writing a value to memory + * as a test that a batch buffer has executed. + * + * NB: Requires master for STORE_DWORD on gen4/5. + */ +void igt_store_word(int fd, uint64_t ahnd, const intel_ctx_t *ctx, + const struct intel_execution_engine2 *e, + int fence, uint32_t target_handle, + uint64_t target_gpu_addr, + uint64_t store_offset, uint32_t store_value) +{ + const int SCRATCH = 0; + const int BATCH = 1; + const unsigned int gen = intel_gen(intel_get_drm_devid(fd)); + struct drm_i915_gem_exec_object2 obj[2]; + struct drm_i915_gem_relocation_entry reloc; + struct drm_i915_gem_execbuffer2 execbuf; + uint32_t batch[16]; + uint64_t bb_offset, delta; + int i; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = ARRAY_SIZE(obj); + execbuf.flags = e->flags; + execbuf.rsvd1 = ctx->id; + if (fence != -1) { + execbuf.flags |= I915_EXEC_FENCE_IN; + execbuf.rsvd2 = fence; + } + if (gen < 6) + execbuf.flags |= I915_EXEC_SECURE; + + memset(obj, 0, sizeof(obj)); + obj[SCRATCH].handle = target_handle; + + obj[BATCH].handle = gem_create(fd, 4096); + obj[BATCH].relocs_ptr = to_user_pointer(&reloc); + obj[BATCH].relocation_count = !ahnd ? 1 : 0; + bb_offset = get_offset(ahnd, obj[BATCH].handle, 4096, 0); + memset(&reloc, 0, sizeof(reloc)); + + i = 0; + delta = sizeof(uint32_t) * store_offset; + if (!ahnd) { + reloc.target_handle = obj[SCRATCH].handle; + reloc.presumed_offset = -1; + reloc.offset = sizeof(uint32_t) * (i + 1); + reloc.delta = lower_32_bits(delta); + igt_assert_eq(upper_32_bits(delta), 0); + reloc.read_domains = I915_GEM_DOMAIN_INSTRUCTION; + reloc.write_domain = I915_GEM_DOMAIN_INSTRUCTION; + } else { + obj[SCRATCH].offset = target_gpu_addr; + obj[SCRATCH].flags |= EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE; + obj[BATCH].offset = bb_offset; + obj[BATCH].flags |= EXEC_OBJECT_PINNED; + } + batch[i] = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0); + if (gen >= 8) { + uint64_t addr = target_gpu_addr + delta; + batch[++i] = lower_32_bits(addr); + batch[++i] = upper_32_bits(addr); + } else if (gen >= 4) { + batch[++i] = 0; + batch[++i] = lower_32_bits(delta); + igt_assert_eq(upper_32_bits(delta), 0); + reloc.offset += sizeof(uint32_t); + } else { + batch[i]--; + batch[++i] = lower_32_bits(delta); + igt_assert_eq(upper_32_bits(delta), 0); + } + batch[++i] = store_value; + batch[++i] = MI_BATCH_BUFFER_END; + gem_write(fd, obj[BATCH].handle, 0, batch, sizeof(batch)); + gem_execbuf(fd, &execbuf); + gem_close(fd, obj[BATCH].handle); + put_offset(ahnd, obj[BATCH].handle); +} diff --git a/lib/igt_store.h b/lib/igt_store.h new file mode 100644 index 000000000..5c6c8263c --- /dev/null +++ b/lib/igt_store.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021 Intel Corporation + */ + +#include "igt_gt.h" + +void igt_store_word(int fd, uint64_t ahnd, const intel_ctx_t *ctx, + const struct intel_execution_engine2 *e, + int fence, uint32_t target_handle, + uint64_t target_gpu_addr, + uint64_t store_offset, uint32_t store_value); diff --git a/lib/meson.build b/lib/meson.build index b9568a71b..3e43316d1 100644 --- a/lib/meson.build +++ b/lib/meson.build @@ -72,6 +72,7 @@ lib_sources = [ 'igt_map.c', 'igt_pm.c', 'igt_dummyload.c', + 'igt_store.c', 'uwildmat/uwildmat.c', 'igt_kmod.c', 'igt_panfrost.c', diff --git a/tests/i915/gem_exec_fence.c b/tests/i915/gem_exec_fence.c index 9a6336ce9..196236b27 100644 --- a/tests/i915/gem_exec_fence.c +++ b/tests/i915/gem_exec_fence.c @@ -28,6 +28,7 @@ #include "i915/gem.h" #include "i915/gem_create.h" #include "igt.h" +#include "igt_store.h" #include "igt_syncobj.h" #include "igt_sysfs.h" #include "igt_vgem.h" @@ -57,74 +58,6 @@ struct sync_merge_data { #define MI_SEMAPHORE_SAD_EQ_SDD (4 << 12) #define MI_SEMAPHORE_SAD_NEQ_SDD (5 << 12) -static void store(int fd, uint64_t ahnd, const intel_ctx_t *ctx, - const struct intel_execution_engine2 *e, - int fence, uint32_t target, uint64_t target_offset, - unsigned offset_value) -{ - const int SCRATCH = 0; - const int BATCH = 1; - const unsigned int gen = intel_gen(intel_get_drm_devid(fd)); - struct drm_i915_gem_exec_object2 obj[2]; - struct drm_i915_gem_relocation_entry reloc; - struct drm_i915_gem_execbuffer2 execbuf; - uint32_t batch[16], delta; - uint64_t bb_offset; - int i; - - memset(&execbuf, 0, sizeof(execbuf)); - execbuf.buffers_ptr = to_user_pointer(obj); - execbuf.buffer_count = 2; - execbuf.flags = e->flags | I915_EXEC_FENCE_IN; - execbuf.rsvd1 = ctx->id; - execbuf.rsvd2 = fence; - if (gen < 6) - execbuf.flags |= I915_EXEC_SECURE; - - memset(obj, 0, sizeof(obj)); - obj[SCRATCH].handle = target; - - obj[BATCH].handle = gem_create(fd, 4096); - obj[BATCH].relocs_ptr = to_user_pointer(&reloc); - obj[BATCH].relocation_count = !ahnd ? 1 : 0; - bb_offset = get_offset(ahnd, obj[BATCH].handle, 4096, 0); - memset(&reloc, 0, sizeof(reloc)); - - i = 0; - delta = sizeof(uint32_t) * offset_value; - if (!ahnd) { - reloc.target_handle = obj[SCRATCH].handle; - reloc.presumed_offset = -1; - reloc.offset = sizeof(uint32_t) * (i + 1); - reloc.delta = delta; - reloc.read_domains = I915_GEM_DOMAIN_INSTRUCTION; - reloc.write_domain = I915_GEM_DOMAIN_INSTRUCTION; - } else { - obj[SCRATCH].offset = target_offset; - obj[SCRATCH].flags |= EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE; - obj[BATCH].offset = bb_offset; - obj[BATCH].flags |= EXEC_OBJECT_PINNED; - } - batch[i] = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0); - if (gen >= 8) { - batch[++i] = target_offset + delta; - batch[++i] = target_offset >> 32; - } else if (gen >= 4) { - batch[++i] = 0; - batch[++i] = delta; - reloc.offset += sizeof(uint32_t); - } else { - batch[i]--; - batch[++i] = delta; - } - batch[++i] = offset_value; - batch[++i] = MI_BATCH_BUFFER_END; - gem_write(fd, obj[BATCH].handle, 0, batch, sizeof(batch)); - gem_execbuf(fd, &execbuf); - gem_close(fd, obj[BATCH].handle); - put_offset(ahnd, obj[BATCH].handle); -} - static bool fence_busy(int fence) { return poll(&(struct pollfd){fence, POLLIN}, 1, 0) == 0; @@ -400,13 +333,13 @@ static void test_fence_await(int fd, const intel_ctx_t *ctx, continue; if (flags & NONBLOCK) { - store(fd, ahnd, ctx, e2, spin->out_fence, - scratch, scratch_offset, i); + igt_store_word(fd, ahnd, ctx, e2, spin->out_fence, + scratch, scratch_offset, i, i); } else { igt_fork(child, 1) { ahnd = get_reloc_ahnd(fd, ctx->id); - store(fd, ahnd, ctx, e2, spin->out_fence, - scratch, scratch_offset, i); + igt_store_word(fd, ahnd, ctx, e2, spin->out_fence, + scratch, scratch_offset, i, i); put_ahnd(ahnd); } } diff --git a/tests/i915/i915_hangman.c b/tests/i915/i915_hangman.c index 6656b3fcd..5a0c9497c 100644 --- a/tests/i915/i915_hangman.c +++ b/tests/i915/i915_hangman.c @@ -36,6 +36,7 @@ #include "i915/gem.h" #include "i915/gem_create.h" #include "igt.h" +#include "igt_store.h" #include "igt_sysfs.h" #include "igt_debugfs.h" #include "sw_sync.h"