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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/misc | |
| 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/misc')
| -rw-r--r-- | drivers/misc/mic/scif/scif_rma.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c index 329727e00e97..c824329f7012 100644 --- a/drivers/misc/mic/scif/scif_rma.c +++ b/drivers/misc/mic/scif/scif_rma.c @@ -39,8 +39,7 @@ void scif_rma_ep_init(struct scif_endpt *ep) struct scif_endpt_rma_info *rma = &ep->rma_info; mutex_init(&rma->rma_lock); - init_iova_domain(&rma->iovad, PAGE_SIZE, SCIF_IOVA_START_PFN, - SCIF_DMA_64BIT_PFN); + init_iova_domain(&rma->iovad, PAGE_SIZE, SCIF_IOVA_START_PFN); spin_lock_init(&rma->tc_lock); mutex_init(&rma->mmn_lock); INIT_LIST_HEAD(&rma->reg_list); |