| Message ID | 20170802095505.27250-1-mperttunen@nvidia.com |
|---|---|
| State | Accepted |
| Headers | show |
On 02.08.2017 12:55, Mikko Perttunen wrote: > 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> > --- > drivers/gpu/host1x/job.c | 8 -------- > 1 file changed, 8 deletions(-) > > diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c > index bee504406cfc..db509ab8874e 100644 > --- a/drivers/gpu/host1x/job.c > +++ b/drivers/gpu/host1x/job.c > @@ -197,10 +197,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) > } > > 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; > @@ -225,10 +221,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) > } > > 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) > I think 'Fixes' tag isn't really needed for this patch since it's not a bug fix, but a cleanup. Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
On 08/02/2017 02:06 PM, Dmitry Osipenko wrote: > On 02.08.2017 12:55, Mikko Perttunen wrote: >> 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> >> --- >> drivers/gpu/host1x/job.c | 8 -------- >> 1 file changed, 8 deletions(-) >> >> diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c >> index bee504406cfc..db509ab8874e 100644 >> --- a/drivers/gpu/host1x/job.c >> +++ b/drivers/gpu/host1x/job.c >> @@ -197,10 +197,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) >> } >> >> 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; >> @@ -225,10 +221,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) >> } >> >> 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) >> > > I think 'Fixes' tag isn't really needed for this patch since it's not a bug fix, > but a cleanup. > > Reviewed-by: Dmitry Osipenko <digetx@gmail.com> > Actually without this, host1x_test fails for me on the first try on TX1 :) So it's a bugfix. Thanks for the reviews and tests. Mikko -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 02.08.2017 14:16, Mikko Perttunen wrote: > On 08/02/2017 02:06 PM, Dmitry Osipenko wrote: >> On 02.08.2017 12:55, Mikko Perttunen wrote: >>> 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> >>> --- >>> drivers/gpu/host1x/job.c | 8 -------- >>> 1 file changed, 8 deletions(-) >>> >>> diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c >>> index bee504406cfc..db509ab8874e 100644 >>> --- a/drivers/gpu/host1x/job.c >>> +++ b/drivers/gpu/host1x/job.c >>> @@ -197,10 +197,6 @@ static unsigned int pin_job(struct host1x *host, struct >>> host1x_job *job) >>> } >>> 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; >>> @@ -225,10 +221,6 @@ static unsigned int pin_job(struct host1x *host, struct >>> host1x_job *job) >>> } >>> 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) >>> >> >> I think 'Fixes' tag isn't really needed for this patch since it's not a bug fix, >> but a cleanup. >> >> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> >> > > Actually without this, host1x_test fails for me on the first try on TX1 :) So > it's a bugfix. Right, my bad. > > Thanks for the reviews and tests. > I haven't tested this patch, only the the second because I've tested it on top of grate's kernel which has a conflicting patch being applied.
On Wed, Aug 02, 2017 at 12:55:04PM +0300, Mikko Perttunen wrote: > 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> > --- > drivers/gpu/host1x/job.c | 8 -------- > 1 file changed, 8 deletions(-) Applied, thanks. Thierry
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index bee504406cfc..db509ab8874e 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -197,10 +197,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) } 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; @@ -225,10 +221,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) } 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)
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> --- drivers/gpu/host1x/job.c | 8 -------- 1 file changed, 8 deletions(-)