Commit f08ef2d1 authored Nov 08, 2016 by Arto Merilainen Committed by Thierry Reding Nov 11, 2016

gpu: host1x: Store device address to all bufs



Currently job pinning is optimized to handle only the first buffer
using a certain host1x_bo object and all subsequent buffers using
the same host1x_bo are considered done.

In most cases this is correct, however, in case the same host1x_bo
is used in multiple gathers inside the same job, we skip also
storing the device address (physical or iova) to this buffer.

This patch reworks the host1x_job_pin() to store the device address
to all gathers.

Signed-off-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

parent cc09cb6d

drivers/gpu/host1x/job.c

+6 −3

Original line number	Diff line number	Diff line
		/*
		* Tegra host1x Job
		*
		* Copyright (c) 2010-2013, NVIDIA Corporation.
		* Copyright (c) 2010-2015, NVIDIA Corporation.
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms and conditions of the GNU General Public License,
		@@ -539,9 +539,12 @@ int host1x_job_pin(struct host1x_job job, struct device dev)

		g->base = job->gather_addr_phys[i];

		for (j = i + 1; j < job->num_gathers; j++)
		if (job->gathers[j].bo == g->bo)
		for (j = i + 1; j < job->num_gathers; j++) {
		if (job->gathers[j].bo == g->bo) {
		job->gathers[j].handled = true;
		job->gathers[j].base = g->base;
		}
		}

		err = do_relocs(job, g->bo);
		if (err)