From: Arto Merilainen <amerilainen@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Arto Merilainen <amerilainen@xxxxxxxxxx>
Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
---
drivers/gpu/host1x/job.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 63bd63f..b72aa91 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -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,
@@ -538,9 +538,12 @@ 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)
--
2.1.4
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