/*
 * Pascal GPU series Copy Engine.
 *
 * Copyright (c) 2011-2017, NVIDIA CORPORATION.  All rights reserved.
 *
 * 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.
 */

#include "gk20a/gk20a.h"

#include "ce_gp10b.h"

#include <nvgpu/hw/gp10b/hw_ce_gp10b.h>

static u32 ce_blockpipe_isr(struct gk20a *g, u32 fifo_intr)
{
	gk20a_dbg(gpu_dbg_intr, "ce blocking pipe interrupt\n");

	return ce_intr_status_blockpipe_pending_f();
}

static u32 ce_launcherr_isr(struct gk20a *g, u32 fifo_intr)
{
	gk20a_dbg(gpu_dbg_intr, "ce launch error interrupt\n");

	return ce_intr_status_launcherr_pending_f();
}

void gp10b_ce_isr(struct gk20a *g, u32 inst_id, u32 pri_base)
{
	u32 ce_intr = gk20a_readl(g, ce_intr_status_r(inst_id));
	u32 clear_intr = 0;

	gk20a_dbg(gpu_dbg_intr, "ce isr %08x %08x\n", ce_intr, inst_id);

	/* clear blocking interrupts: they exibit broken behavior */
	if (ce_intr & ce_intr_status_blockpipe_pending_f())
		clear_intr |= ce_blockpipe_isr(g, ce_intr);

	if (ce_intr & ce_intr_status_launcherr_pending_f())
		clear_intr |= ce_launcherr_isr(g, ce_intr);

	gk20a_writel(g, ce_intr_status_r(inst_id), clear_intr);
	return;
}

int gp10b_ce_nonstall_isr(struct gk20a *g, u32 inst_id, u32 pri_base)
{
	int ops = 0;
	u32 ce_intr = gk20a_readl(g, ce_intr_status_r(inst_id));

	gk20a_dbg(gpu_dbg_intr, "ce nonstall isr %08x %08x\n", ce_intr, inst_id);

	if (ce_intr & ce_intr_status_nonblockpipe_pending_f()) {
		gk20a_writel(g, ce_intr_status_r(inst_id),
			ce_intr_status_nonblockpipe_pending_f());
		ops |= (gk20a_nonstall_ops_wakeup_semaphore |
			gk20a_nonstall_ops_post_events);
	}

	return ops;
}