From: Arto Merilainen amerilainen@nvidia.com
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 --- 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)