diff options
author | Arkadiusz Hiler <arkadiusz.hiler@intel.com> | 2018-10-18 14:06:42 +0300 |
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committer | Arkadiusz Hiler <arkadiusz.hiler@intel.com> | 2018-10-23 10:55:51 +0300 |
commit | 741bf7064c467df725c14cc0b3b8b50436f9ee09 (patch) | |
tree | 0ad6fb217dca79a8f1175fb289979b574222fefa /tests/i915/gem_exec_alignment.c | |
parent | 78619fde4008424c472906041edb1d204e014f7c (diff) |
tests: Introduce i915 directory
We can already move all the tests with distinct prefixes: gem_, gen3_
and i915_.
pm_ and drv_ tests will follow in batches, so we can do the
adjustments in the reporting/filtering layer of the CI system.
v2: Fix test-list.txt generation with meson
v3: Fix docs build (Petri)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>
Tested-by: Petri Latvala <petri.latvala@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'tests/i915/gem_exec_alignment.c')
-rw-r--r-- | tests/i915/gem_exec_alignment.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/tests/i915/gem_exec_alignment.c b/tests/i915/gem_exec_alignment.c new file mode 100644 index 00000000..a10571c9 --- /dev/null +++ b/tests/i915/gem_exec_alignment.c @@ -0,0 +1,212 @@ +/* + * Copyright © 2015 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. + * + * Authors: + * Chris Wilson <chris@chris-wilson.co.uk> + * + */ + +/* Exercises the basic execbuffer using object alignments */ + +#include "igt.h" +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <fcntl.h> +#include <inttypes.h> +#include <errno.h> +#include <sys/stat.h> +#include <sys/time.h> +#include "drm.h" + +IGT_TEST_DESCRIPTION("Exercises the basic execbuffer using object alignments"); + +static uint32_t find_last_bit(uint64_t x) +{ + uint32_t i = 0; + while (x) { + x >>= 1; + i++; + } + return i; +} + +static uint32_t file_max(void) +{ + static uint32_t max; + if (max == 0) { + FILE *file = fopen("/proc/sys/fs/file-max", "r"); + max = 80000; + if (file) { + igt_assert(fscanf(file, "%d", &max) == 1); + fclose(file); + } + max /= 2; + } + return max; +} + +static void many(int fd) +{ + uint32_t bbe = MI_BATCH_BUFFER_END; + struct drm_i915_gem_exec_object2 *execobj; + struct drm_i915_gem_execbuffer2 execbuf; + uint64_t gtt_size, ram_size; + uint64_t alignment, max_alignment, count, i; + + gtt_size = gem_aperture_size(fd); + if (!gem_uses_full_ppgtt(fd)) + gtt_size /= 2; /* We have to *share* our GTT! */ + ram_size = intel_get_total_ram_mb(); + ram_size *= 1024 * 1024; + count = ram_size / 4096; + if (count > file_max()) /* vfs cap */ + count = file_max(); + max_alignment = find_last_bit(gtt_size / count); + if (max_alignment <= 13) + max_alignment = 4096; + else + max_alignment = 1ull << (max_alignment - 1); + count = gtt_size / max_alignment / 2; + + igt_info("gtt_size=%lld MiB, max-alignment=%lld, count=%lld\n", + (long long)gtt_size/1024/1024, + (long long)max_alignment, + (long long)count); + intel_require_memory(count, 4096, CHECK_RAM); + + execobj = calloc(sizeof(*execobj), count + 1); + igt_assert(execobj); + + for (i = 0; i < count; i++) { + execobj[i].handle = gem_create(fd, 4096); + if ((gtt_size-1) >> 32) + execobj[i].flags = 1<<3; /* EXEC_OBJECT_SUPPORTS_48B_ADDRESS */ + } + execobj[i].handle = gem_create(fd, 4096); + if ((gtt_size-1) >> 32) + execobj[i].flags = 1<<3; /* EXEC_OBJECT_SUPPORTS_48B_ADDRESS */ + gem_write(fd, execobj[i].handle, 0, &bbe, sizeof(bbe)); + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(execobj); + execbuf.buffer_count = count + 1; + igt_require(__gem_execbuf(fd, &execbuf) == 0); + + for (alignment = 4096; alignment < gtt_size; alignment <<= 1) { + for (i = 0; i < count; i++) + execobj[i].alignment = alignment; + if (alignment > max_alignment) { + uint64_t factor = alignment / max_alignment; + execbuf.buffer_count = 2*count / factor; + execbuf.buffers_ptr = + to_user_pointer(execobj + count - execbuf.buffer_count + 1); + } + + igt_debug("testing %lld x alignment=%#llx [%db]\n", + (long long)execbuf.buffer_count - 1, + (long long)alignment, + find_last_bit(alignment)-1); + gem_execbuf(fd, &execbuf); + for(i = count - execbuf.buffer_count + 1; i < count; i++) { + igt_assert_eq_u64(execobj[i].alignment, alignment); + igt_assert_eq_u64(execobj[i].offset % alignment, 0); + } + } + + for (i = 0; i < count; i++) + gem_close(fd, execobj[i].handle); + gem_close(fd, execobj[i].handle); + free(execobj); +} + +static void single(int fd) +{ + struct drm_i915_gem_exec_object2 execobj; + struct drm_i915_gem_execbuffer2 execbuf; + uint32_t batch = MI_BATCH_BUFFER_END; + uint64_t gtt_size; + int non_pot; + + memset(&execobj, 0, sizeof(execobj)); + execobj.handle = gem_create(fd, 4096); + execobj.flags = 1<<3; /* EXEC_OBJECT_SUPPORTS_48B_ADDRESS */ + gem_write(fd, execobj.handle, 0, &batch, sizeof(batch)); + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(&execobj); + execbuf.buffer_count = 1; + + gtt_size = gem_aperture_size(fd); + if (__gem_execbuf(fd, &execbuf)) { + execobj.flags = 0; + gtt_size = 1ull << 32; + gem_execbuf(fd, &execbuf); + } + + execobj.alignment = 3*4096; + non_pot = __gem_execbuf(fd, &execbuf) == 0; + igt_debug("execbuffer() accepts non-power-of-two alignment? %s\n", + non_pot ? "yes" : "no"); + + for (execobj.alignment = 4096; + execobj.alignment <= 64<<20; + execobj.alignment += 4096) { + if (!non_pot && execobj.alignment & -execobj.alignment) + continue; + + igt_debug("starting offset: %#llx, next alignment: %#llx\n", + (long long)execobj.offset, + (long long)execobj.alignment); + gem_execbuf(fd, &execbuf); + igt_assert_eq_u64(execobj.offset % execobj.alignment, 0); + } + + for (execobj.alignment = 4096; + execobj.alignment < gtt_size; + execobj.alignment <<= 1) { + igt_debug("starting offset: %#llx, next alignment: %#llx [%db]\n", + (long long)execobj.offset, + (long long)execobj.alignment, + find_last_bit(execobj.alignment)-1); + gem_execbuf(fd, &execbuf); + igt_assert_eq_u64(execobj.offset % execobj.alignment, 0); + } + + gem_close(fd, execobj.handle); +} + +igt_main +{ + int fd = -1; + + igt_fixture { + fd = drm_open_driver(DRIVER_INTEL); + igt_require_gem(fd); + } + + igt_subtest("single") /* basic! */ + single(fd); + igt_subtest("many") + many(fd); + +} |