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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>
This commit is contained in:
Arto Merilainen 2016-11-08 19:51:32 +02:00 committed by Thierry Reding
parent cc09cb6da9
commit f08ef2d1a1
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/host1x/job.c
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@ -1,7 +1,7 @@
/*
* 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)