diff options
| author | Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> | 2017-02-24 02:48:17 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-30 09:53:53 +0200 |
| commit | 6b9376e30f42b902260371245f009bc05eb3fdfb (patch) | |
| tree | 70cd6609697c7a84a9f8542c99f5786be0e97230 /drivers/iommu/amd_iommu.c | |
| parent | 0a6d80c70b9150d6a9cf466d41955e374c2c9fab (diff) | |
x86/events, drivers/iommu/amd: Introduce amd_iommu_get_num_iommus()
Introduce amd_iommu_get_num_iommus(), which returns the value of
amd_iommus_present. The function is used to replace direct access to the
variable, which is now declared as static.
This function will also be used by AMD IOMMU perf driver.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Jörg Rödel <joro@8bytes.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: iommu@lists.linux-foundation.org
Link: http://lkml.kernel.org/r/1487926102-13073-6-git-send-email-Suravee.Suthikulpanit@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index b17536d6e69b..63cacf5d6cf2 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1234,7 +1234,7 @@ static void __domain_flush_pages(struct protection_domain *domain, build_inv_iommu_pages(&cmd, address, size, domain->id, pde); - for (i = 0; i < amd_iommus_present; ++i) { + for (i = 0; i < amd_iommu_get_num_iommus(); ++i) { if (!domain->dev_iommu[i]) continue; @@ -1278,7 +1278,7 @@ static void domain_flush_complete(struct protection_domain *domain) { int i; - for (i = 0; i < amd_iommus_present; ++i) { + for (i = 0; i < amd_iommu_get_num_iommus(); ++i) { if (domain && !domain->dev_iommu[i]) continue; @@ -3363,7 +3363,7 @@ static int __flush_pasid(struct protection_domain *domain, int pasid, * IOMMU TLB needs to be flushed before Device TLB to * prevent device TLB refill from IOMMU TLB */ - for (i = 0; i < amd_iommus_present; ++i) { + for (i = 0; i < amd_iommu_get_num_iommus(); ++i) { if (domain->dev_iommu[i] == 0) continue; |