From patchwork Thu Nov 14 17:30:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 11244073 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C90F413BD for ; Thu, 14 Nov 2019 17:31:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id B0BE1206CC for ; Thu, 14 Nov 2019 17:31:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B0BE1206CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 914C56EE53; Thu, 14 Nov 2019 17:30:59 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id D15276EE42; Thu, 14 Nov 2019 17:30:57 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2019 09:30:57 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,304,1569308400"; d="scan'208";a="288287324" Received: from rosetta.fi.intel.com ([10.237.72.194]) by orsmga001.jf.intel.com with ESMTP; 14 Nov 2019 09:30:54 -0800 Received: by rosetta.fi.intel.com (Postfix, from userid 1000) id C0E9F8402DF; Thu, 14 Nov 2019 19:30:45 +0200 (EET) From: Mika Kuoppala To: intel-gfx@lists.freedesktop.org Date: Thu, 14 Nov 2019 19:30:45 +0200 Message-Id: <20191114173045.10813-1-mika.kuoppala@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191114171806.9605-1-mika.kuoppala@linux.intel.com> References: <20191114171806.9605-1-mika.kuoppala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t] Add tests/gem_exec_parse_blt X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: igt-dev@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Mika Kuoppala For testing blitter engine command parser on gen9. v2: bad jump offset v3: rebase v4: improve bb start and subcase it v5: fix presumed offsets (Jon) v6: name, remove spurious gem_syncs (Chris) v7: jump further backwards (Daniel), ctx_param_engines (Chris) v8: dont mess up the Makefiles Cc: Chris Wilson Cc: Daniel Vetter Signed-off-by: Mika Kuoppala --- tests/Makefile.sources | 3 + tests/i915/gem_exec_parse_blt.c | 1030 +++++++++++++++++++++++++++++++ tests/meson.build | 1 + 3 files changed, 1034 insertions(+) create mode 100644 tests/i915/gem_exec_parse_blt.c diff --git a/tests/Makefile.sources b/tests/Makefile.sources index 6b1d4cb2..27801c89 100644 --- a/tests/Makefile.sources +++ b/tests/Makefile.sources @@ -245,6 +245,9 @@ gem_exec_params_SOURCES = i915/gem_exec_params.c TESTS_progs += gem_exec_parse gem_exec_parse_SOURCES = i915/gem_exec_parse.c +TESTS_progs += gem_exec_parse_blt +gem_exec_parse_blt_SOURCES = i915/gem_exec_parse_blt.c + TESTS_progs += gem_exec_reloc gem_exec_reloc_SOURCES = i915/gem_exec_reloc.c diff --git a/tests/i915/gem_exec_parse_blt.c b/tests/i915/gem_exec_parse_blt.c new file mode 100644 index 00000000..b8b2bb50 --- /dev/null +++ b/tests/i915/gem_exec_parse_blt.c @@ -0,0 +1,1030 @@ +/* + * Copyright © 2018 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#include "igt.h" +#include +#include +#include +#include + +#include + +/* To help craft commands known to be invalid across all engines */ +#define INSTR_CLIENT_SHIFT 29 +#define INSTR_INVALID_CLIENT 0x7 + +#define MI_LOAD_REGISTER_REG (0x2a << 23) +#define MI_STORE_REGISTER_MEM (0x24 << 23) +#define MI_ARB_ON_OFF (0x8 << 23) +#define MI_USER_INTERRUPT (0x02 << 23) +#define MI_FLUSH_DW (0x26 << 23) +#define MI_ARB_CHECK (0x05 << 23) +#define MI_REPORT_HEAD (0x07 << 23) +#define MI_SUSPEND_FLUSH (0x0b << 23) +#define MI_LOAD_SCAN_LINES_EXCL (0x13 << 23) +#define MI_UPDATE_GTT (0x23 << 23) + +#define BCS_SWCTRL 0x22200 +#define BCS_GPR_BASE 0x22600 +#define BCS_GPR(n) (0x22600 + (n) * 8) +#define BCS_GPR_UDW(n) (0x22600 + (n) * 8 + 4) + +#define HANDLE_SIZE 4096 + +static int parser_version; + +static int command_parser_version(int fd) +{ + int version = -1; + drm_i915_getparam_t gp; + + gp.param = I915_PARAM_CMD_PARSER_VERSION; + gp.value = &version; + + if (drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp) == 0) + return version; + + return -1; +} + +static int __exec_batch_patched(int fd, int engine, + uint32_t cmd_bo, const uint32_t *cmds, int size, + uint32_t target_bo, uint64_t target_offset, uint64_t target_delta) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj[2]; + struct drm_i915_gem_relocation_entry reloc[1]; + + gem_write(fd, cmd_bo, 0, cmds, size); + + memset(obj, 0, sizeof(obj)); + obj[0].handle = target_bo; + obj[1].handle = cmd_bo; + + memset(reloc, 0, sizeof(reloc)); + reloc[0].offset = target_offset; + reloc[0].target_handle = target_bo; + reloc[0].delta = target_delta; + reloc[0].read_domains = I915_GEM_DOMAIN_COMMAND; + reloc[0].write_domain = I915_GEM_DOMAIN_COMMAND; + reloc[0].presumed_offset = -1; + + obj[1].relocs_ptr = to_user_pointer(reloc); + obj[1].relocation_count = 1; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = 2; + execbuf.batch_len = size; + execbuf.flags = engine; + + return __gem_execbuf(fd, &execbuf); +} + +static void exec_batch_patched(int fd, int engine, + uint32_t cmd_bo, const uint32_t *cmds, + int size, int patch_offset, + long int expected_value) +{ + const uint32_t target_bo = gem_create(fd, HANDLE_SIZE); + uint64_t actual_value = 0; + long int ret; + + ret = __exec_batch_patched(fd, engine, cmd_bo, cmds, size, target_bo, patch_offset, 0); + if (ret) { + igt_assert_lt(ret, 0); + gem_close(fd, target_bo); + igt_assert_eq(ret, expected_value); + return; + } + + gem_read(fd, target_bo, 0, &actual_value, sizeof(actual_value)); + + gem_close(fd, target_bo); + + igt_assert_eq(actual_value, expected_value); +} + +static int __exec_batch(int fd, int engine, uint32_t cmd_bo, + const uint32_t *cmds, int size) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj[1]; + int ret; + + gem_write(fd, cmd_bo, 0, cmds, size); + + memset(obj, 0, sizeof(obj)); + obj[0].handle = cmd_bo; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = 1; + execbuf.batch_len = size; + execbuf.flags = engine; + + ret = __gem_execbuf(fd, &execbuf); + + return ret; +} + +#if 0 +static void print_batch(const uint32_t *cmds, const uint32_t sz) +{ + const int commands = sz / 4; + int i; + + igt_info("Batch size %d\n", sz); + for (i = 0; i < commands; i++) + igt_info("0x%08x: 0x%08x\n", i, cmds[i]); +} +#else +#define print_batch(cmds, size) +#endif + +#define exec_batch(fd, engine, bo, cmds, sz, expected) \ + print_batch(cmds, sz); \ + igt_assert_eq(__exec_batch(fd, engine, bo, cmds, sz), expected) + +static void exec_split_batch(int fd, int engine, const uint32_t *cmds, + int size, int expected_ret) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj[1]; + uint32_t cmd_bo; + const uint32_t noop[1024] = { 0 }; + const int alloc_size = 4096 * 2; + const int actual_start_offset = 4096-sizeof(uint32_t); + + /* Allocate and fill a 2-page batch with noops */ + cmd_bo = gem_create(fd, alloc_size); + gem_write(fd, cmd_bo, 0, noop, sizeof(noop)); + gem_write(fd, cmd_bo, 4096, noop, sizeof(noop)); + + /* Write the provided commands such that the first dword + * of the command buffer is the last dword of the first + * page (i.e. the command is split across the two pages). + */ + gem_write(fd, cmd_bo, actual_start_offset, cmds, size); + + memset(obj, 0, sizeof(obj)); + obj[0].handle = cmd_bo; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = 1; + /* NB: We want batch_start_offset and batch_len to point to the block + * of the actual commands (i.e. at the last dword of the first page), + * but have to adjust both the start offset and length to meet the + * kernel driver's requirements on the alignment of those fields. + */ + execbuf.batch_start_offset = actual_start_offset & ~0x7; + execbuf.batch_len = + ALIGN(size + actual_start_offset - execbuf.batch_start_offset, + 0x8); + execbuf.flags = engine; + + igt_assert_eq(__gem_execbuf(fd, &execbuf), expected_ret); + + gem_close(fd, cmd_bo); +} + +static void exec_batch_chained(int fd, int engine, + uint32_t cmd_bo, const uint32_t *cmds, + int size, int patch_offset, + uint64_t expected_value, + int expected_return) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj[3]; + struct drm_i915_gem_relocation_entry reloc[1]; + struct drm_i915_gem_relocation_entry first_level_reloc; + + const uint32_t target_bo = gem_create(fd, 4096); + const uint32_t first_level_bo = gem_create(fd, 4096); + uint64_t actual_value = 0; + int ret; + + const uint32_t first_level_cmds[] = { + MI_BATCH_BUFFER_START | MI_BATCH_NON_SECURE_I965 | 1, + 0, + 0, + MI_BATCH_BUFFER_END, + }; + + gem_write(fd, first_level_bo, 0, + first_level_cmds, sizeof(first_level_cmds)); + gem_write(fd, cmd_bo, 0, cmds, size); + + memset(obj, 0, sizeof(obj)); + obj[0].handle = target_bo; + obj[1].handle = cmd_bo; + obj[2].handle = first_level_bo; + + memset(reloc, 0, sizeof(reloc)); + reloc[0].offset = patch_offset; + reloc[0].delta = 0; + reloc[0].target_handle = target_bo; + reloc[0].read_domains = I915_GEM_DOMAIN_COMMAND; + reloc[0].write_domain = I915_GEM_DOMAIN_COMMAND; + reloc[0].presumed_offset = -1; + + obj[1].relocation_count = 1; + obj[1].relocs_ptr = to_user_pointer(&reloc); + + memset(&first_level_reloc, 0, sizeof(first_level_reloc)); + first_level_reloc.offset = 4; + first_level_reloc.delta = 0; + first_level_reloc.target_handle = cmd_bo; + first_level_reloc.read_domains = I915_GEM_DOMAIN_COMMAND; + first_level_reloc.write_domain = 0; + obj[2].relocation_count = 1; + obj[2].relocs_ptr = to_user_pointer(&first_level_reloc); + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = 3; + execbuf.batch_len = sizeof(first_level_cmds); + execbuf.flags = engine; + + ret = __gem_execbuf(fd, &execbuf); + if (expected_return && ret == expected_return) + goto out; + + gem_read(fd,target_bo, 0, &actual_value, sizeof(actual_value)); + +out: + if (!expected_return) + igt_assert_eq(expected_value, actual_value); + else + igt_assert_neq(expected_value, actual_value); + + gem_close(fd, first_level_bo); + gem_close(fd, target_bo); +} + +static void test_secure_batches(const int fd) +{ + int v = -1; + drm_i915_getparam_t gp; + + gp.param = I915_PARAM_HAS_SECURE_BATCHES; + gp.value = &v; + + igt_assert_eq(drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp), 0); + igt_assert_eq(v, 0); +} + +struct cmd { + uint32_t cmd; + int len; + const char *name; +}; + +#define CMD(C, L) { .cmd = (C), .len = (L), .name = #C } +#define CMD_N(C) { .cmd = (C), .len = 1, .name = #C } + +static const struct cmd allowed_cmds[] = { + CMD_N(MI_NOOP), + CMD_N(MI_USER_INTERRUPT), + CMD_N(MI_WAIT_FOR_EVENT), + CMD(MI_FLUSH_DW, 5), + CMD_N(MI_ARB_CHECK), + CMD_N(MI_REPORT_HEAD), + CMD_N(MI_FLUSH), + CMD_N(MI_ARB_ON_OFF), + CMD_N(MI_SUSPEND_FLUSH), + CMD(MI_LOAD_SCAN_LINES_INCL, 2), + CMD(MI_LOAD_SCAN_LINES_EXCL, 2), +}; + +static uint32_t *inject_cmd(uint32_t *batch, const uint32_t cmd, int len) +{ + int i = 0; + + batch[i++] = cmd; + + while (--len) + batch[i++] = 0; + + return &batch[i]; +} + +static unsigned long batch_num_cmds(const uint32_t * const batch_start, + const uint32_t * const batch_end) +{ + igt_assert_lte((unsigned long)batch_start, (unsigned long)batch_end); + + return batch_end - batch_start; +} + +static unsigned long batch_bytes(const uint32_t * const batch_start, + const uint32_t * const batch_end) +{ + const unsigned long bytes = batch_num_cmds(batch_start, batch_end) * 4; + + igt_assert(!(bytes & 0x7)); + + return bytes; +} + +static void test_allowed_all(const int fd, const uint32_t handle) +{ + uint32_t batch[4096]; + uint32_t *b = &batch[0]; + + for (int i = 0; i < ARRAY_SIZE(allowed_cmds); i++) + b = inject_cmd(b, allowed_cmds[i].cmd, + allowed_cmds[i].len); + + if (!(batch_num_cmds(batch, b) % 2)) + b = inject_cmd(b, MI_NOOP, 1); + + b = inject_cmd(b, MI_BATCH_BUFFER_END, 1); + + exec_batch(fd, I915_EXEC_BLT, handle, batch, batch_bytes(batch, b), 0); +} + +static void test_allowed_single(const int fd, const uint32_t handle) +{ + uint32_t batch[4096]; + int ret; + + for (int i = 0; i < ARRAY_SIZE(allowed_cmds); i++) { + uint32_t *b = &batch[0]; + + b = inject_cmd(b, allowed_cmds[i].cmd, + allowed_cmds[i].len); + + if (!(batch_num_cmds(batch, b) % 2)) + b = inject_cmd(b, MI_NOOP, 1); + + b = inject_cmd(b, MI_BATCH_BUFFER_END, 1); + + ret = __exec_batch(fd, I915_EXEC_BLT, handle, + batch, batch_bytes(batch, b)); + + igt_assert_eq(ret, 0); + }; +} + +static void test_bb_secure(const int fd, const uint32_t handle) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj[1]; + struct drm_i915_gem_relocation_entry reloc[1]; + int ret; + + const uint32_t batch_secure[] = { + MI_BATCH_BUFFER_START | 1, + 12, + 0, + MI_NOOP, + MI_NOOP, + MI_BATCH_BUFFER_END, + }; + + gem_write(fd, handle, 0, batch_secure, sizeof(batch_secure)); + + memset(obj, 0, sizeof(obj)); + obj[0].handle = handle; + + memset(reloc, 0, sizeof(reloc)); + reloc[0].offset = 1 * sizeof(uint32_t); + reloc[0].target_handle = handle; + reloc[0].delta = 4 * sizeof(uint32_t); + reloc[0].read_domains = I915_GEM_DOMAIN_COMMAND; + reloc[0].write_domain = 0; + reloc[0].presumed_offset = -1; + + obj[0].relocs_ptr = to_user_pointer(reloc); + obj[0].relocation_count = 1; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = 1; + execbuf.batch_len = sizeof(batch_secure); + execbuf.flags = I915_EXEC_BLT; + + ret = __gem_execbuf(fd, &execbuf); + + igt_assert_eq(ret, -EACCES); +} + +#define BB_START_PARAM 0 +#define BB_START_OUT 1 +#define BB_START_CMD 2 +#define BB_START_FAR 3 + +static void test_bb_start(const int fd, const uint32_t handle, int test) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj[2]; + struct drm_i915_gem_relocation_entry reloc[3]; + const uint32_t target_bo = gem_create(fd, 4096); + uint32_t *dst; + int ret; + unsigned int jump_off, footer_pos; + const uint32_t batch_header[] = { + MI_NOOP, + MI_NOOP, + MI_NOOP, + MI_NOOP, + MI_STORE_DWORD_IMM, + 0, + 0, + 1, + MI_STORE_DWORD_IMM, + 4, + 0, + 2, + MI_COND_BATCH_BUFFER_END | 1, + 0, + 0, + 0 + }; + const uint32_t batch_footer[] = { + MI_BATCH_BUFFER_START | MI_BATCH_NON_SECURE_I965 | 1, + 0, + 0, + MI_BATCH_BUFFER_END, + }; + uint32_t batch[1024]; + + igt_require(gem_can_store_dword(fd, I915_EXEC_BLT)); + + memset(batch, 0, sizeof(batch)); + memcpy(batch, batch_header, sizeof(batch_header)); + + switch (test) { + case BB_START_PARAM: + jump_off = 5 * sizeof(uint32_t); + break; + case BB_START_CMD: + case BB_START_FAR: + jump_off = 8 * sizeof(uint32_t); + break; + default: + jump_off = 0xf00d0000; + } + + if (test == BB_START_FAR) + footer_pos = (sizeof(batch) - sizeof(batch_footer)); + else + footer_pos = sizeof(batch_header); + + memcpy(batch + footer_pos / sizeof(uint32_t), + batch_footer, sizeof(batch_footer)); + gem_write(fd, handle, 0, batch, sizeof(batch)); + + memset(obj, 0, sizeof(obj)); + obj[0].handle = target_bo; + obj[1].handle = handle; + + memset(reloc, 0, sizeof(reloc)); + reloc[0].offset = 5 * sizeof(uint32_t); + reloc[0].target_handle = obj[0].handle; + reloc[0].delta = 0; + reloc[0].read_domains = I915_GEM_DOMAIN_COMMAND; + reloc[0].write_domain = I915_GEM_DOMAIN_COMMAND; + reloc[0].presumed_offset = -1; + + reloc[1].offset = 9 * sizeof(uint32_t); + reloc[1].target_handle = obj[0].handle; + reloc[1].delta = 1 * sizeof(uint32_t); + reloc[1].read_domains = I915_GEM_DOMAIN_COMMAND; + reloc[1].write_domain = I915_GEM_DOMAIN_COMMAND; + reloc[1].presumed_offset = -1; + + reloc[2].offset = footer_pos + 1 * sizeof(uint32_t); + reloc[2].target_handle = obj[1].handle; + reloc[2].delta = jump_off; + reloc[2].read_domains = I915_GEM_DOMAIN_COMMAND; + reloc[2].write_domain = 0; + reloc[2].presumed_offset = -1; + + obj[1].relocs_ptr = to_user_pointer(reloc); + obj[1].relocation_count = 3; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(obj); + execbuf.buffer_count = 2; + execbuf.batch_len = sizeof(batch); + execbuf.flags = I915_EXEC_BLT; + + dst = gem_mmap__cpu(fd, obj[0].handle, 0, 4096, + PROT_READ | PROT_WRITE); + + igt_assert_eq(dst[0], 0); + igt_assert_eq(dst[1], 0); + + ret = __gem_execbuf(fd, &execbuf); + + switch (test) { + case BB_START_PARAM: + igt_assert_eq(ret, -EINVAL); + break; + case BB_START_CMD: + case BB_START_FAR: + igt_assert_eq(ret, 0); + + while (READ_ONCE(dst[0]) == 0) + ; + + while (READ_ONCE(dst[1]) == 0) + ; + + igt_assert_eq(dst[0], 1); + igt_assert_eq(dst[1], 2); + + igt_info("values now %x %x\n", dst[0], dst[1]); + + dst[0] = 0; + + igt_info("values now %x %x\n", dst[0], dst[1]); + + igt_assert_eq(dst[0], 0); + igt_assert_eq(dst[1], 2); + + break; + + case BB_START_OUT: + igt_assert_eq(ret, -EINVAL); + break; + } + + gem_munmap(dst, 4096); + gem_close(fd, target_bo); +} + +static void test_bb_chained(const int fd, const uint32_t handle) +{ + const uint32_t batch[] = { + (0x20 << 23) | 2, /* MI_STORE_DATA_IMM */ + 0, + 0, + 0xbaadf00d, + MI_NOOP, + MI_BATCH_BUFFER_END, + }; + + exec_batch_chained(fd, I915_EXEC_RENDER, + handle, + batch, sizeof(batch), + 4, + 0xbaadf00d, + 0); + + exec_batch_chained(fd, I915_EXEC_BLT, + handle, + batch, sizeof(batch), + 4, + 0xbaadf00d, + EPERM); +} + +static void test_cmd_crossing_page(const int fd, const uint32_t handle) +{ + const uint32_t lri_ok[] = { + MI_LOAD_REGISTER_IMM, + BCS_GPR(0), + 0xbaadf00d, + MI_BATCH_BUFFER_END, + }; + const uint32_t store_reg[] = { + MI_STORE_REGISTER_MEM | (4 - 2), + BCS_GPR(0), + 0, /* reloc */ + 0, /* reloc */ + MI_NOOP, + MI_BATCH_BUFFER_END, + }; + + exec_split_batch(fd, I915_EXEC_BLT, + lri_ok, sizeof(lri_ok), + 0); + + exec_batch_patched(fd, I915_EXEC_BLT, handle, + store_reg, sizeof(store_reg), + 2 * sizeof(uint32_t), /* reloc */ + 0xbaadf00d); +} + +static void test_invalid_length(const int fd, const uint32_t handle) +{ + const uint32_t ok_val = 0xbaadf00d; + const uint32_t bad_val = 0xf00dbaad; + const uint32_t noops[8192] = { 0, }; + + const uint32_t lri_ok[] = { + MI_LOAD_REGISTER_IMM, + BCS_GPR(0), + ok_val, + MI_BATCH_BUFFER_END, + }; + + const uint32_t lri_bad[] = { + MI_LOAD_REGISTER_IMM, + BCS_GPR(0), + bad_val, + MI_BATCH_BUFFER_END, + }; + + const uint32_t store_reg[] = { + MI_STORE_REGISTER_MEM | (4 - 2), + BCS_GPR(0), + 0, /* reloc */ + 0, /* reloc */ + MI_NOOP, + MI_BATCH_BUFFER_END, + }; + + exec_batch(fd, I915_EXEC_BLT, handle, + lri_ok, sizeof(lri_ok), + 0); + + exec_batch_patched(fd, I915_EXEC_BLT, handle, + store_reg, sizeof(store_reg), + 2 * sizeof(uint32_t), /* reloc */ + ok_val); + + exec_batch(fd, I915_EXEC_BLT, handle, + lri_bad, 0, + 0); + + exec_batch_patched(fd, I915_EXEC_BLT, handle, + store_reg, sizeof(store_reg), + 2 * sizeof(uint32_t), /* reloc */ + ok_val); + + exec_batch(fd, I915_EXEC_BLT, handle, + lri_ok, 4096, + 0); + + igt_assert_eq(__gem_write(fd, handle, 0, noops, 4097), -EINVAL); +} + +struct reg { + uint32_t addr; + uint32_t mask; + bool masked_write; + bool privileged; +}; + +#define REG_M(ADDR, MASK, WM, P) { (ADDR), (MASK), (WM), (P) } +#define REG(ADDR) REG_M(ADDR, 0xffffffff, false, false) +#define REG_P(ADDR) REG_M(ADDR, 0xffffffff, false, true) + +static const struct reg regs[] = { + REG_M(BCS_SWCTRL, 0x3, true, false), + REG(BCS_GPR(0)), + REG(BCS_GPR_UDW(0)), + REG(BCS_GPR(1)), + REG(BCS_GPR_UDW(1)), + REG(BCS_GPR(2)), + REG(BCS_GPR_UDW(2)), + REG(BCS_GPR(3)), + REG(BCS_GPR_UDW(3)), + REG(BCS_GPR(4)), + REG(BCS_GPR_UDW(4)), + REG(BCS_GPR(5)), + REG(BCS_GPR_UDW(5)), + REG(BCS_GPR(6)), + REG(BCS_GPR_UDW(6)), + REG(BCS_GPR(7)), + REG(BCS_GPR_UDW(7)), + REG(BCS_GPR(8)), + REG(BCS_GPR_UDW(8)), + REG(BCS_GPR(9)), + REG(BCS_GPR_UDW(9)), + REG(BCS_GPR(10)), + REG(BCS_GPR_UDW(10)), + REG(BCS_GPR(11)), + REG(BCS_GPR_UDW(11)), + REG(BCS_GPR(12)), + REG(BCS_GPR_UDW(12)), + REG(BCS_GPR(13)), + REG(BCS_GPR_UDW(13)), + REG(BCS_GPR(14)), + REG(BCS_GPR_UDW(14)), + REG(BCS_GPR(15)), + REG(BCS_GPR_UDW(15)), + + REG_P(0), + REG_P(200000), + + REG_P(BCS_SWCTRL - 1), + REG_P(BCS_SWCTRL - 2), + REG_P(BCS_SWCTRL - 3), + REG_P(BCS_SWCTRL - 4), + REG_P(BCS_SWCTRL + 4), + + REG_P(BCS_GPR(0) - 1), + REG_P(BCS_GPR(0) - 2), + REG_P(BCS_GPR(0) - 3), + REG_P(BCS_GPR(0) - 4), + REG_P(BCS_GPR_UDW(15) + 4), +}; + +static void test_register(const int fd, const uint32_t handle, + const struct reg *r) +{ + const uint32_t lri_zero[] = { + MI_LOAD_REGISTER_IMM, + r->addr, + r->masked_write ? 0xffff0000 : 0, + MI_BATCH_BUFFER_END, + }; + + const uint32_t lri_mask[] = { + MI_LOAD_REGISTER_IMM, + r->addr, + r->masked_write ? (r->mask << 16) | r->mask : r->mask, + MI_BATCH_BUFFER_END, + }; + + const uint32_t store_reg[] = { + MI_STORE_REGISTER_MEM | (4 - 2), + r->addr, + 0, /* reloc */ + 0, /* reloc */ + MI_NOOP, + MI_BATCH_BUFFER_END, + }; + + exec_batch(fd, I915_EXEC_BLT, handle, + lri_mask, sizeof(lri_mask), + r->privileged ? -EACCES : 0); + + exec_batch_patched(fd, I915_EXEC_BLT, handle, + store_reg, sizeof(store_reg), + 2 * sizeof(uint32_t), /* reloc */ + r->privileged ? -EACCES : r->mask); + + exec_batch(fd, I915_EXEC_BLT, handle, + lri_zero, sizeof(lri_zero), + r->privileged ? -EACCES : 0); + + exec_batch_patched(fd, I915_EXEC_BLT, handle, + store_reg, sizeof(store_reg), + 2 * sizeof(uint32_t), /* reloc */ + r->privileged ? -EACCES : 0); +} + +static void test_valid_registers(const int fd, const uint32_t handle) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(regs); i++) + test_register(fd, handle, ®s[i]); +} + +static long int read_reg(const int fd, const uint32_t handle, + const uint32_t addr) +{ + const uint32_t store_reg[] = { + MI_STORE_REGISTER_MEM | (4 - 2), + addr, + 0, /* reloc */ + 0, /* reloc */ + MI_NOOP, + MI_BATCH_BUFFER_END, + }; + uint32_t target_bo; + uint32_t value; + long int ret; + + target_bo = gem_create(fd, HANDLE_SIZE); + + ret = __exec_batch_patched(fd, I915_EXEC_BLT, handle, + store_reg, sizeof(store_reg), + target_bo, 2 * sizeof(uint32_t), 0); + + if (ret) { + igt_assert_lt(ret, 0); + gem_close(fd, target_bo); + return ret; + } + + gem_read(fd, target_bo, 0, &value, sizeof(value)); + + gem_close(fd, target_bo); + + return value; +} + +static int write_reg(const int fd, const uint32_t handle, + const uint32_t addr, const uint32_t val) +{ + const uint32_t lri[] = { + MI_LOAD_REGISTER_IMM, + addr, + val, + MI_BATCH_BUFFER_END, + }; + + return __exec_batch(fd, I915_EXEC_BLT, handle, + lri, sizeof(lri)); +} + +static void test_unaligned_access(const int fd, const uint32_t handle) +{ + const uint32_t addr = BCS_GPR(4); + const uint32_t val = 0xbaadfead; + const uint32_t pre = 0x12345678; + const uint32_t post = 0x87654321; + + igt_assert_eq(write_reg(fd, handle, addr - 4, pre), 0); + igt_assert_eq(write_reg(fd, handle, addr, val), 0); + igt_assert_eq(write_reg(fd, handle, addr + 4, post), 0); + + igt_assert_eq(read_reg(fd, handle, addr - 4), pre); + igt_assert_eq(read_reg(fd, handle, addr), val); + igt_assert_eq(read_reg(fd, handle, addr + 4), post); + + for (int i = 0; i < 4; i++) { + igt_assert_eq(write_reg(fd, handle, addr + i, val), 0); + igt_assert_eq(read_reg(fd, handle, addr), val); + + igt_assert_eq(read_reg(fd, handle, addr + 1), val); + igt_assert_eq(read_reg(fd, handle, addr + 2), val); + igt_assert_eq(read_reg(fd, handle, addr + 3), val); + igt_assert_eq(read_reg(fd, handle, addr + 4), post); + igt_assert_eq(read_reg(fd, handle, addr - 3), pre); + igt_assert_eq(read_reg(fd, handle, addr - 2), pre); + igt_assert_eq(read_reg(fd, handle, addr - 1), pre); + } +} + +static void test_reject_on_engine(int fd, uint32_t handle, unsigned int engine) +{ + const uint32_t invalid_cmd[] = { + INSTR_INVALID_CLIENT << INSTR_CLIENT_SHIFT, + MI_BATCH_BUFFER_END, + }; + const uint32_t invalid_set_context[] = { + MI_SET_CONTEXT | 32, /* invalid length */ + MI_BATCH_BUFFER_END, + }; + + exec_batch(fd, engine, handle, + invalid_cmd, sizeof(invalid_cmd), + -EINVAL); + + exec_batch(fd, engine, handle, + invalid_set_context, sizeof(invalid_set_context), + -EINVAL); +} + +static void test_rejected(int fd, uint32_t handle, bool ctx_param) +{ +#define engine_class(e, n) ((e)->engines[(n)].engine_class) +#define engine_instance(e, n) ((e)->engines[(n)].engine_instance) + + if (ctx_param) { + int i; + + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines , I915_EXEC_RING_MASK + 1); + struct drm_i915_gem_context_param param = { + .ctx_id = 0, + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&engines), + .size = sizeof(engines), + }; + + memset(&engines, 0, sizeof(engines)); + for (i = 0; i <= I915_EXEC_RING_MASK; i++) { + engine_class(&engines, i) = I915_ENGINE_CLASS_COPY; + engine_instance(&engines, i) = 0; + } + gem_context_set_param(fd, ¶m); + + for (i = 0; i <= I915_EXEC_RING_MASK; i++) + test_reject_on_engine(fd, handle, i); + + param.size = 0; + gem_context_set_param(fd, ¶m); + } else { + test_reject_on_engine(fd, handle, I915_EXEC_BLT); + } +} + +igt_main +{ + uint32_t handle; + int fd; + + igt_fixture { + fd = drm_open_driver(DRIVER_INTEL); + igt_require_gem(fd); + gem_require_blitter(fd); + + parser_version = command_parser_version(fd); + /* igt_require(parser_version == 10); */ + + igt_require(gem_uses_ppgtt(fd)); + igt_require(gem_has_blt(fd)); + igt_require(intel_gen(intel_get_drm_devid(fd)) == 9); + + handle = gem_create(fd, HANDLE_SIZE); + + igt_fork_hang_detector(fd); + } + + igt_subtest("secure-batches") + test_secure_batches(fd); + + igt_subtest("allowed-all") + test_allowed_all(fd, handle); + + igt_subtest("allowed-single") + test_allowed_single(fd, handle); + + igt_subtest("bb-start-param") + test_bb_start(fd, handle, BB_START_PARAM); + + igt_subtest("bb-start-out") + test_bb_start(fd, handle, BB_START_OUT); + + igt_subtest("bb-secure") + test_bb_secure(fd, handle); + + igt_subtest("bb-chained") + test_bb_chained(fd, handle); + + igt_subtest("cmd-crossing-page") + test_cmd_crossing_page(fd, handle); + + igt_subtest("batch-without-end") { + const uint32_t noop[1024] = { 0 }; + + exec_batch(fd, I915_EXEC_BLT, handle, + noop, sizeof(noop), + -EINVAL); + } + + igt_subtest("batch-zero-length") { + const uint32_t noop[] = { 0, MI_BATCH_BUFFER_END }; + + exec_batch(fd, I915_EXEC_BLT, handle, + noop, 0, + -EINVAL); + } + + igt_subtest("batch-invalid-length") + test_invalid_length(fd, handle); + + igt_subtest("basic-rejected") + test_rejected(fd, handle, false); + + igt_subtest("basic-rejected-ctx-param") + test_rejected(fd, handle, true); + + igt_subtest("valid-registers") + test_valid_registers(fd, handle); + + igt_subtest("unaligned-access") + test_unaligned_access(fd, handle); + + igt_subtest_group { + igt_hang_t hang; + + igt_fixture igt_allow_hang(fd, 0, 0); + + igt_subtest("bb-start-cmd") + test_bb_start(fd, handle, BB_START_CMD); + + igt_subtest("bb-start-far") + test_bb_start(fd, handle, BB_START_FAR); + + igt_fixture igt_disallow_hang(fd, hang); + } + + igt_fixture { + igt_stop_hang_detector(); + gem_close(fd, handle); + + close(fd); + } +} diff --git a/tests/meson.build b/tests/meson.build index 44bddd02..755fc9e6 100644 --- a/tests/meson.build +++ b/tests/meson.build @@ -149,6 +149,7 @@ i915_progs = [ 'gem_exec_parallel', 'gem_exec_params', 'gem_exec_parse', + 'gem_exec_parse_blt', 'gem_exec_reloc', 'gem_exec_reuse', 'gem_exec_schedule',