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/*
* 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.
*/
#include <string.h>
#include <errno.h>
#include "igt_core.h"
#include "igt_gt.h"
#include "igt_debugfs.h"
#include "ioctl_wrappers.h"
#include "intel_reg.h"
#include "intel_chipset.h"
void igt_require_hang_ring(int fd, int ring)
{
gem_context_require_param(fd, LOCAL_CONTEXT_PARAM_BAN_PERIOD);
igt_require(intel_gen(intel_get_drm_devid(fd)) >= 5);
}
struct igt_hang_ring igt_hang_ring(int fd, int gen, int ring)
{
struct drm_i915_gem_relocation_entry reloc;
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 exec;
struct local_i915_gem_context_param param;
uint32_t b[8];
unsigned ban;
unsigned len;
param.context = 0;
param.size = 0;
param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
param.value = 0;
gem_context_get_param(fd, ¶m);
ban = param.value;
param.value = 0;
gem_context_set_param(fd, ¶m);
memset(&reloc, 0, sizeof(reloc));
memset(&exec, 0, sizeof(exec));
memset(&execbuf, 0, sizeof(execbuf));
exec.handle = gem_create(fd, 4096);
exec.relocation_count = 1;
exec.relocs_ptr = (uintptr_t)&reloc;
len = 2;
if (gen >= 8)
len++;
b[0] = MI_BATCH_BUFFER_START | (len - 2);
b[len] = MI_BATCH_BUFFER_END;
b[len+1] = MI_NOOP;
gem_write(fd, exec.handle, 0, b, sizeof(b));
reloc.offset = 4;
reloc.target_handle = exec.handle;
reloc.read_domains = I915_GEM_DOMAIN_COMMAND;
execbuf.buffers_ptr = (uintptr_t)&exec;
execbuf.buffer_count = 1;
execbuf.batch_len = sizeof(b);
execbuf.flags = ring;
gem_execbuf(fd, &execbuf);
return (struct igt_hang_ring){ exec.handle, ban };
}
void igt_post_hang_ring(int fd, struct igt_hang_ring arg)
{
struct local_i915_gem_context_param param;
if (arg.handle == 0)
return;
gem_set_domain(fd, arg.handle,
I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
gem_close(fd, arg.handle);
param.context = 0;
param.size = 0;
param.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
param.value = arg.ban;
gem_context_set_param(fd, ¶m);
}
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