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authorVignesh Raghavendra <vigneshr@ti.com>2022-06-04 13:32:19 +0530
committerVignesh Raghavendra <vigneshr@ti.com>2022-06-04 13:32:19 +0530
commitde63dee020025075c6962f6b536797bc3af3e970 (patch)
tree89173487fdaabb029dfb1b0a6b68484ec3edef35 /kernel/dma
parentcc13f3f3acad08038b76f5f26f66151c136d1eaf (diff)
parente61686bb77c441d8e5f10dc063e2cea799e4aae6 (diff)
Merge tag 'v5.10.115' of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux into ti-linux-5.10.y
This is the 5.10.115 stable release * tag 'v5.10.115' of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux: (1162 commits) Linux 5.10.115 mmc: rtsx: add 74 Clocks in power on flow PCI: aardvark: Fix reading MSI interrupt number PCI: aardvark: Clear all MSIs at setup dm: interlock pending dm_io and dm_wait_for_bios_completion block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern rcu: Apply callbacks processing time limit only on softirq rcu: Fix callbacks processing time limit retaining cond_resched() KVM: LAPIC: Enable timer posted-interrupt only when mwait/hlt is advertised KVM: x86/mmu: avoid NULL-pointer dereference on page freeing bugs KVM: x86: Do not change ICR on write to APIC_SELF_IPI x86/kvm: Preserve BSP MSR_KVM_POLL_CONTROL across suspend/resume net/mlx5: Fix slab-out-of-bounds while reading resource dump menu kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU net: igmp: respect RCU rules in ip_mc_source() and ip_mc_msfilter() btrfs: always log symlinks in full mode smsc911x: allow using IRQ0 selftests: ocelot: tc_flower_chains: specify conform-exceed action for policer bnxt_en: Fix unnecessary dropping of RX packets bnxt_en: Fix possible bnxt_open() failure caused by wrong RFS flag ... Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'kernel/dma')
-rw-r--r--kernel/dma/debug.c4
-rw-r--r--kernel/dma/direct.h3
-rw-r--r--kernel/dma/swiotlb.c3
3 files changed, 6 insertions, 4 deletions
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 10d07ace46c1..f8ae54679865 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -928,7 +928,7 @@ static __init int dma_debug_cmdline(char *str)
global_disable = true;
}
- return 0;
+ return 1;
}
static __init int dma_debug_entries_cmdline(char *str)
@@ -937,7 +937,7 @@ static __init int dma_debug_entries_cmdline(char *str)
return -EINVAL;
if (!get_option(&str, &nr_prealloc_entries))
nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
- return 0;
+ return 1;
}
__setup("dma_debug=", dma_debug_cmdline);
diff --git a/kernel/dma/direct.h b/kernel/dma/direct.h
index b98615578737..c9d380318dd8 100644
--- a/kernel/dma/direct.h
+++ b/kernel/dma/direct.h
@@ -114,6 +114,7 @@ static inline void dma_direct_unmap_page(struct device *dev, dma_addr_t addr,
dma_direct_sync_single_for_cpu(dev, addr, size, dir);
if (unlikely(is_swiotlb_buffer(phys)))
- swiotlb_tbl_unmap_single(dev, phys, size, size, dir, attrs);
+ swiotlb_tbl_unmap_single(dev, phys, size, size, dir,
+ attrs | DMA_ATTR_SKIP_CPU_SYNC);
}
#endif /* _KERNEL_DMA_DIRECT_H */
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 0ed0e1f215c7..62b1e5fa8673 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -598,7 +598,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr,
tlb_addr = slot_addr(io_tlb_start, index) + offset;
if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC) &&
- (dir == DMA_TO_DEVICE || dir == DMA_BIDIRECTIONAL))
+ (!(attrs & DMA_ATTR_OVERWRITE) || dir == DMA_TO_DEVICE ||
+ dir == DMA_BIDIRECTIONAL))
swiotlb_bounce(orig_addr, tlb_addr, mapping_size, DMA_TO_DEVICE);
return tlb_addr;
}