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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2012-2013 LunarG, Inc.
*
* 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 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:
* Chia-I Wu <olv@lunarg.com>
*/
#include "intel_winsys.h"
#include "ilo_builder_mi.h"
#include "ilo_shader.h"
#include "ilo_cp.h"
static const struct ilo_cp_owner ilo_cp_default_owner;
static void
ilo_cp_release_owner(struct ilo_cp *cp)
{
if (cp->owner != &ilo_cp_default_owner) {
const struct ilo_cp_owner *owner = cp->owner;
cp->owner = &ilo_cp_default_owner;
assert(ilo_cp_space(cp) >= owner->reserve);
owner->release(cp, owner->data);
}
}
/**
* Set the parser owner. If this is a new owner or a new ring, the old owner
* is released and the new owner's own() is called. The parser may implicitly
* submit if there is a ring change.
*
* own() is called before \p owner owns the parser. It must make sure there
* is more space than \p owner->reserve when it returns. Calling
* ilo_cp_submit() is allowed.
*
* release() will be called after \p owner loses the parser. That may happen
* just before the parser submits and ilo_cp_submit() is not allowed.
*/
void
ilo_cp_set_owner(struct ilo_cp *cp, enum intel_ring_type ring,
const struct ilo_cp_owner *owner)
{
if (!owner)
owner = &ilo_cp_default_owner;
if (cp->ring != ring) {
ilo_cp_submit(cp, "ring change");
cp->ring = ring;
}
if (cp->owner != owner) {
ilo_cp_release_owner(cp);
owner->own(cp, owner->data);
assert(ilo_cp_space(cp) >= owner->reserve);
cp->owner = owner;
}
}
static struct intel_bo *
ilo_cp_end_batch(struct ilo_cp *cp, unsigned *used)
{
struct intel_bo *bo;
ilo_cp_release_owner(cp);
if (!ilo_builder_batch_used(&cp->builder)) {
ilo_builder_batch_discard(&cp->builder);
return NULL;
}
/* see ilo_cp_space() */
assert(ilo_builder_batch_space(&cp->builder) >= 2);
gen6_mi_batch_buffer_end(&cp->builder);
bo = ilo_builder_end(&cp->builder, used);
/* we have to assume that kernel uploads also failed */
if (!bo)
ilo_shader_cache_invalidate(cp->shader_cache);
return bo;
}
static bool
ilo_cp_detect_hang(struct ilo_cp *cp)
{
uint32_t active_lost, pending_lost;
bool guilty = false;
if (likely(!(ilo_debug & ILO_DEBUG_HANG)))
return false;
/* wait and get reset stats */
if (intel_bo_wait(cp->last_submitted_bo, -1) ||
intel_winsys_get_reset_stats(cp->winsys, cp->render_ctx,
&active_lost, &pending_lost))
return false;
if (cp->active_lost != active_lost) {
ilo_err("GPU hang caused by bo %p\n", cp->last_submitted_bo);
cp->active_lost = active_lost;
guilty = true;
}
if (cp->pending_lost != pending_lost) {
ilo_err("GPU hang detected\n");
cp->pending_lost = pending_lost;
}
return guilty;
}
/**
* Flush the command parser and execute the commands. When the parser buffer
* is empty, the callback is not invoked.
*/
void
ilo_cp_submit_internal(struct ilo_cp *cp)
{
const bool do_exec = !(ilo_debug & ILO_DEBUG_NOHW);
struct intel_bo *bo;
unsigned used;
int err;
bo = ilo_cp_end_batch(cp, &used);
if (!bo)
return;
if (likely(do_exec)) {
err = intel_winsys_submit_bo(cp->winsys, cp->ring,
bo, used, cp->render_ctx, cp->one_off_flags);
}
else {
err = 0;
}
cp->one_off_flags = 0;
if (!err) {
bool guilty;
if (cp->last_submitted_bo)
intel_bo_unreference(cp->last_submitted_bo);
cp->last_submitted_bo = bo;
intel_bo_reference(cp->last_submitted_bo);
guilty = ilo_cp_detect_hang(cp);
if (unlikely((ilo_debug & ILO_DEBUG_BATCH) || guilty)) {
ilo_builder_decode(&cp->builder);
if (guilty)
abort();
}
if (cp->submit_callback)
cp->submit_callback(cp, cp->submit_callback_data);
}
ilo_builder_begin(&cp->builder);
}
/**
* Destroy the command parser.
*/
void
ilo_cp_destroy(struct ilo_cp *cp)
{
ilo_builder_reset(&cp->builder);
intel_winsys_destroy_context(cp->winsys, cp->render_ctx);
FREE(cp);
}
/**
* Create a command parser.
*/
struct ilo_cp *
ilo_cp_create(const struct ilo_dev_info *dev,
struct intel_winsys *winsys,
struct ilo_shader_cache *shc)
{
struct ilo_cp *cp;
cp = CALLOC_STRUCT(ilo_cp);
if (!cp)
return NULL;
cp->winsys = winsys;
cp->shader_cache = shc;
cp->render_ctx = intel_winsys_create_context(winsys);
if (!cp->render_ctx) {
FREE(cp);
return NULL;
}
cp->ring = INTEL_RING_RENDER;
cp->owner = &ilo_cp_default_owner;
ilo_builder_init(&cp->builder, dev, winsys);
if (!ilo_builder_begin(&cp->builder)) {
ilo_cp_destroy(cp);
return NULL;
}
return cp;
}
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