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| author |   Zhen Lei <thunder.leizhen@huawei.com> | 2017-09-21 16:52:45 +0100 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2017-09-27 17:09:57 +0200 |
| commit | aa3ac9469c1850ed00741955b975c3a19029763a (patch) | |
| tree | 998e22c451f149ef7c2cd5284d1539cc9b33496f /drivers/gpu/host1x/dev.c | |
| parent | iommu/iova: Extend rbtree node caching (diff) | |
| download | linux-dev-aa3ac9469c1850ed00741955b975c3a19029763a.tar.xz linux-dev-aa3ac9469c1850ed00741955b975c3a19029763a.zip | |
iommu/iova: Make dma_32bit_pfn implicit
Now that the cached node optimisation can apply to all allocations, the
couple of users which were playing tricks with dma_32bit_pfn in order to
benefit from it can stop doing so. Conversely, there is also no need for
all the other users to explicitly calculate a 'real' 32-bit PFN, when
init_iova_domain() can happily do that itself from the page granularity.
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Jonathan Hunter <jonathanh@nvidia.com>
CC: David Airlie <airlied@linux.ie>
CC: Sudeep Dutt <sudeep.dutt@intel.com>
CC: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Zhen Lei <thunder.leizhen@huawei.com>
Tested-by: Nate Watterson <nwatters@codeaurora.org>
[rm: use iova_shift(), rewrote commit message]
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/gpu/host1x/dev.c')
| -rw-r--r-- | drivers/gpu/host1x/dev.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 7f22c5c37660..5267c62e8896 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -198,8 +198,7 @@ static int host1x_probe(struct platform_device *pdev) order = __ffs(host->domain->pgsize_bitmap); init_iova_domain(&host->iova, 1UL << order, - geometry->aperture_start >> order, - geometry->aperture_end >> order); + geometry->aperture_start >> order); host->iova_end = geometry->aperture_end; } |