diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2016-12-16 14:28:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-26 08:24:44 +0100 |
| commit | 1fd1e6cd63143cf5d198a536d875dfc88ce179bc (patch) | |
| tree | 7a90a6aa9b9593f183827fe2cd67206b1395acdd /arch | |
| parent | 776c2b2d165dc64397f3f9b39839920a08578e8f (diff) | |
swiotlb: Convert swiotlb_force from int to enum
commit ae7871be189cb41184f1e05742b4a99e2c59774d upstream.
Convert the flag swiotlb_force from an int to an enum, to prepare for
the advent of more possible values.
Suggested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 3 | ||||
| -rw-r--r-- | arch/arm64/mm/init.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/pci-swiotlb.c | 2 | ||||
| -rw-r--r-- | arch/x86/xen/pci-swiotlb-xen.c | 2 |
4 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 3f74d0d98de6..02265a589ef5 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -524,7 +524,8 @@ EXPORT_SYMBOL(dummy_dma_ops); static int __init arm64_dma_init(void) { - if (swiotlb_force || max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT)) + if (swiotlb_force == SWIOTLB_FORCE || + max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT)) swiotlb = 1; return atomic_pool_init(); diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 59bd3d47647b..380ebe705093 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -401,7 +401,8 @@ static void __init free_unused_memmap(void) */ void __init mem_init(void) { - if (swiotlb_force || max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT)) + if (swiotlb_force == SWIOTLB_FORCE || + max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT)) swiotlb_init(1); else swiotlb_force = SWIOTLB_NO_FORCE; diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c index b47edb8f5256..8da13d4e77cc 100644 --- a/arch/x86/kernel/pci-swiotlb.c +++ b/arch/x86/kernel/pci-swiotlb.c @@ -70,7 +70,7 @@ int __init pci_swiotlb_detect_override(void) { int use_swiotlb = swiotlb | swiotlb_force; - if (swiotlb_force) + if (swiotlb_force == SWIOTLB_FORCE) swiotlb = 1; return use_swiotlb; diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c index 0e98e5d241d0..5f8b4b0302b6 100644 --- a/arch/x86/xen/pci-swiotlb-xen.c +++ b/arch/x86/xen/pci-swiotlb-xen.c @@ -49,7 +49,7 @@ int __init pci_xen_swiotlb_detect(void) * activate this IOMMU. If running as PV privileged, activate it * irregardless. */ - if ((xen_initial_domain() || swiotlb || swiotlb_force)) + if (xen_initial_domain() || swiotlb || swiotlb_force == SWIOTLB_FORCE) xen_swiotlb = 1; /* If we are running under Xen, we MUST disable the native SWIOTLB. |