From 18b3f5ac6b55f5f3f60723a58f14ec235a5b8cfe Mon Sep 17 00:00:00 2001
From: Mikko Perttunen <mperttunen@nvidia.com>
Date: Wed, 2 Aug 2017 12:55:04 +0300
Subject: [PATCH] gpu: host1x: Don't fail on NULL bo physical address
Git-commit: 18b3f5ac6b55f5f3f60723a58f14ec235a5b8cfe
Patch-mainline: v4.14-rc1
References: bsc#1051510
Pinning a Host1x BO currently cannot fail and zero is a valid address
for a BO when IOMMU is enabled. To avoid false errors remove checks
for NULL BO physical addresses.
Fixes: 404bfb78daf3 ("gpu: host1x: Add IOMMU support")
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/host1x/job.c | 8 --------
1 file changed, 8 deletions(-)
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -193,10 +193,6 @@ static unsigned int pin_job(struct host1
}
phys_addr = host1x_bo_pin(reloc->target.bo, &sgt);
- if (!phys_addr) {
- err = -EINVAL;
- goto unpin;
- }
job->addr_phys[job->num_unpins] = phys_addr;
job->unpins[job->num_unpins].bo = reloc->target.bo;
@@ -221,10 +217,6 @@ static unsigned int pin_job(struct host1
}
phys_addr = host1x_bo_pin(g->bo, &sgt);
- if (!phys_addr) {
- err = -EINVAL;
- goto unpin;
- }
if (!IS_ENABLED(CONFIG_TEGRA_HOST1X_FIREWALL) && host->domain) {
for_each_sg(sgt->sgl, sg, sgt->nents, j)