[Intel-gfx] [PATCH] tests/gem_error_capture: Initial testcase for error state capture/dump
Daniel Vetter
daniel at ffwll.ch
Fri Apr 11 16:27:30 CEST 2014
On Fri, Apr 11, 2014 at 01:09:22PM +0000, Mateo Lozano, Oscar wrote:
> Daniel, is this what you had in mind?
>
> -- Oscar
>
> P.S. I just re-read the Jira task and realized that I am missing the
> "check that the ring objects contains a reloc with MI_BB_START for your
> presumed batch object's address". I´ll add this and resubmit.
Yeah this looks pretty cool. btw when you resend can you simply sign up
someone local to your team for the review? Bit easier that way.
I've checked your usage of igt_* infrastructure and that looks good.
Thanks, Daniel
>
> > -----Original Message-----
> > From: Mateo Lozano, Oscar
> > Sent: Friday, April 11, 2014 2:00 PM
> > To: intel-gfx at lists.freedesktop.org
> > Cc: Mateo Lozano, Oscar
> > Subject: [PATCH] tests/gem_error_capture: Initial testcase for error state
> > capture/dump
> >
> > From: Oscar Mateo <oscar.mateo at intel.com>
> >
> > Signed-off-by: Oscar Mateo <oscar.mateo at intel.com>
> > ---
> > tests/.gitignore | 1 +
> > tests/Makefile.sources | 1 +
> > tests/gem_error_capture.c | 230
> > ++++++++++++++++++++++++++++++++++++++++++++++
> > 3 files changed, 232 insertions(+)
> > create mode 100644 tests/gem_error_capture.c
> >
> > diff --git a/tests/.gitignore b/tests/.gitignore index 146bab0..945574c 100644
> > --- a/tests/.gitignore
> > +++ b/tests/.gitignore
> > @@ -27,6 +27,7 @@ gem_ctx_create
> > gem_ctx_exec
> > gem_double_irq_loop
> > gem_dummy_reloc_loop
> > +gem_error_capture
> > gem_evict_alignment
> > gem_evict_everything
> > gem_exec_bad_domains
> > diff --git a/tests/Makefile.sources b/tests/Makefile.sources index
> > bf02a48..612beb6 100644
> > --- a/tests/Makefile.sources
> > +++ b/tests/Makefile.sources
> > @@ -24,6 +24,7 @@ TESTS_progs_M = \
> > gem_ctx_bad_exec \
> > gem_ctx_exec \
> > gem_dummy_reloc_loop \
> > + gem_error_capture \
> > gem_evict_alignment \
> > gem_evict_everything \
> > gem_exec_bad_domains \
> > diff --git a/tests/gem_error_capture.c b/tests/gem_error_capture.c new file
> > mode 100644 index 0000000..bbf0f5d
> > --- /dev/null
> > +++ b/tests/gem_error_capture.c
> > @@ -0,0 +1,230 @@
> > +/*
> > + * Copyright © 2014 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:
> > + * Oscar Mateo <oscar.mateo at intel.com>
> > + *
> > + */
> > +
> > +/*
> > + * Testcase: Check whether basic error state capture/dump mechanism is
> > +correctly
> > + * working for all rings.
> > + */
> > +
> > +#include <unistd.h>
> > +#include <stdlib.h>
> > +#include <stdint.h>
> > +#include <stdio.h>
> > +#include <string.h>
> > +#include <fcntl.h>
> > +#include <inttypes.h>
> > +#include <errno.h>
> > +#include <sys/stat.h>
> > +#include <sys/ioctl.h>
> > +#include "drm.h"
> > +#include "ioctl_wrappers.h"
> > +#include "drmtest.h"
> > +#include "intel_io.h"
> > +#include "igt_debugfs.h"
> > +
> > +#define MAGIC_NUMBER 0x10001
> > +uint32_t batch[4] = {MI_NOOP, MI_BATCH_BUFFER_END, MAGIC_NUMBER,
> > +MAGIC_NUMBER};
> > +
> > +static void stop_rings(void)
> > +{
> > + int fd;
> > + static const char buf[] = "0xf";
> > +
> > + fd = igt_debugfs_open("i915_ring_stop", O_WRONLY);
> > + igt_assert(fd >= 0);
> > +
> > + igt_assert(write(fd, buf, sizeof(buf)) == sizeof(buf));
> > +
> > + close(fd);
> > +}
> > +
> > +static bool rings_stopped(void)
> > +{
> > + int fd;
> > + static char buf[128];
> > + unsigned long long val;
> > +
> > + fd = igt_debugfs_open("i915_ring_stop", O_RDONLY);
> > + igt_assert(fd >= 0);
> > +
> > + igt_assert(read(fd, buf, sizeof(buf)) > 0);
> > + close(fd);
> > +
> > + sscanf(buf, "%llx", &val);
> > +
> > + return (bool)val;
> > +}
> > +
> > +static void clear_error_state(void)
> > +{
> > + int fd;
> > + static const char buf[] = "";
> > +
> > + fd = igt_debugfs_open("i915_error_state", O_WRONLY);
> > + igt_assert(fd >= 0);
> > +
> > + igt_assert(write(fd, buf, sizeof(buf)) == sizeof(buf));
> > + close(fd);
> > +}
> > +
> > +static void check_bb_contents(char **line, size_t *line_size,
> > + FILE *file, int pos, uint32_t expected_value) {
> > + char expected_line[32];
> > +
> > + igt_assert(getline(line, line_size, file) > 0);
> > +
> > + snprintf(expected_line, sizeof(expected_line), "%08x : %08x",
> > + 4*pos, expected_value);
> > +
> > + igt_assert(strstr(*line, expected_line)); }
> > +
> > +static void check_error_state(const char *expected_ring_name,
> > + uint64_t expected_offset)
> > +{
> > + FILE *file;
> > + int debug_fd;
> > + char *line = NULL;
> > + size_t line_size;
> > + char *dashes = NULL;
> > + char *ring_name = NULL;
> > + uint32_t gtt_offset = 0;
> > + bool matched;
> > + int i;
> > +
> > + debug_fd = igt_debugfs_open("i915_error_state", O_RDONLY);
> > + igt_assert(debug_fd >= 0);
> > + file = fdopen(debug_fd, "r");
> > +
> > + while (getline(&line, &line_size, file) > 0) {
> > + dashes = strstr(line, "---");
> > + if (dashes) {
> > + ring_name = realloc(ring_name, dashes - line);
> > + strncpy(ring_name, line, dashes - line);
> > + ring_name[dashes - line - 1] = '\0';
> > +
> > + matched = sscanf(dashes, "--- gtt_offset = 0x%08x\n",
> > + >t_offset);
> > + if (matched) {
> > + igt_assert(strstr(ring_name,
> > expected_ring_name));
> > + igt_assert(gtt_offset == expected_offset);
> > +
> > + for (i = 0; i < sizeof(batch) / 4; i++)
> > + check_bb_contents(&line, &line_size,
> > + file, i, batch[i]);
> > +
> > + break;
> > + }
> > + }
> > + }
> > +
> > + igt_assert(matched);
> > +
> > + free(line);
> > + free(ring_name);
> > +
> > + close(debug_fd);
> > +}
> > +
> > +static void test(int fd, uint32_t handle, unsigned ring_id, const char
> > +*ring_name) {
> > + struct drm_i915_gem_execbuffer2 execbuf;
> > + struct drm_i915_gem_exec_object2 exec;
> > + uint64_t presumed_offset;
> > +
> > + gem_require_ring(fd, ring_id);
> > +
> > + clear_error_state();
> > +
> > + exec.handle = handle;
> > + exec.relocation_count = 0;
> > + exec.relocs_ptr = 0;
> > + exec.alignment = 0;
> > + exec.offset = 0;
> > + exec.flags = 0;
> > + exec.rsvd1 = 0;
> > + exec.rsvd2 = 0;
> > +
> > + execbuf.buffers_ptr = (uintptr_t)&exec;
> > + execbuf.buffer_count = 1;
> > + execbuf.batch_start_offset = 0;
> > + execbuf.batch_len = 16;
> > + execbuf.cliprects_ptr = 0;
> > + execbuf.num_cliprects = 0;
> > + execbuf.DR1 = 0;
> > + execbuf.DR4 = 0;
> > + execbuf.flags = ring_id;
> > + i915_execbuffer2_set_context_id(execbuf, 0);
> > + execbuf.rsvd2 = 0;
> > +
> > + gem_execbuf(fd, &execbuf);
> > + gem_sync(fd, handle);
> > +
> > + presumed_offset = exec.offset;
> > +
> > + stop_rings();
> > +
> > + gem_execbuf(fd, &execbuf);
> > + gem_sync(fd, handle);
> > +
> > + igt_assert(rings_stopped() == false);
> > + igt_assert(presumed_offset == exec.offset);
> > +
> > + check_error_state(ring_name, exec.offset); }
> > +
> > +uint32_t handle;
> > +int fd;
> > +
> > +igt_main
> > +{
> > + igt_fixture {
> > + fd = drm_open_any();
> > +
> > + handle = gem_create(fd, 4096);
> > + gem_write(fd, handle, 0, batch, sizeof(batch));
> > + }
> > +
> > + igt_subtest("render")
> > + test(fd, handle, I915_EXEC_RENDER, "render ring");
> > +
> > + igt_subtest("bsd")
> > + test(fd, handle, I915_EXEC_BSD, "bsd ring");
> > +
> > + igt_subtest("blt")
> > + test(fd, handle, I915_EXEC_BLT, "blitter ring");
> > +
> > + igt_subtest("vebox")
> > + test(fd, handle, I915_EXEC_VEBOX, "video enhancement ring");
> > +
> > + igt_fixture {
> > + gem_close(fd, handle);
> > +
> > + close(fd);
> > + }
> > +}
> > --
> > 1.9.0
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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