[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20210209062131.2300005-3-tientzu@chromium.org>
Date: Tue, 9 Feb 2021 14:21:19 +0800
From: Claire Chang <tientzu@...omium.org>
To: Rob Herring <robh+dt@...nel.org>, mpe@...erman.id.au,
Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
Frank Rowand <frowand.list@...il.com>,
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
boris.ostrovsky@...cle.com, jgross@...e.com,
Christoph Hellwig <hch@....de>,
Marek Szyprowski <m.szyprowski@...sung.com>
Cc: benh@...nel.crashing.org, paulus@...ba.org,
"list@....net:IOMMU DRIVERS" <iommu@...ts.linux-foundation.org>,
sstabellini@...nel.org, Robin Murphy <robin.murphy@....com>,
grant.likely@....com, xypron.glpk@....de,
Thierry Reding <treding@...dia.com>, mingo@...nel.org,
bauerman@...ux.ibm.com, peterz@...radead.org,
Greg KH <gregkh@...uxfoundation.org>,
Saravana Kannan <saravanak@...gle.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
heikki.krogerus@...ux.intel.com,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Randy Dunlap <rdunlap@...radead.org>,
Dan Williams <dan.j.williams@...el.com>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
linux-devicetree <devicetree@...r.kernel.org>,
lkml <linux-kernel@...r.kernel.org>,
linuxppc-dev@...ts.ozlabs.org, xen-devel@...ts.xenproject.org,
Nicolas Boichat <drinkcat@...omium.org>,
Jim Quinlan <james.quinlan@...adcom.com>,
Claire Chang <tientzu@...omium.org>
Subject: [PATCH v4 02/14] swiotlb: Move is_swiotlb_buffer() to swiotlb.c
Move is_swiotlb_buffer() to swiotlb.c and make io_tlb_{start,end}
static, so we can entirely hide struct swiotlb inside of swiotlb.c in
the following patches.
Signed-off-by: Claire Chang <tientzu@...omium.org>
---
include/linux/swiotlb.h | 7 +------
kernel/dma/swiotlb.c | 7 ++++++-
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 83200f3b042a..041611bf3c2a 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -70,13 +70,8 @@ dma_addr_t swiotlb_map(struct device *dev, phys_addr_t phys,
#ifdef CONFIG_SWIOTLB
extern enum swiotlb_force swiotlb_force;
-extern phys_addr_t io_tlb_start, io_tlb_end;
-
-static inline bool is_swiotlb_buffer(phys_addr_t paddr)
-{
- return paddr >= io_tlb_start && paddr < io_tlb_end;
-}
+bool is_swiotlb_buffer(phys_addr_t paddr);
void __init swiotlb_exit(void);
unsigned int swiotlb_max_segment(void);
size_t swiotlb_max_mapping_size(struct device *dev);
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index e180211f6ad9..678490d39e55 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -69,7 +69,7 @@ enum swiotlb_force swiotlb_force;
* swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this
* API.
*/
-phys_addr_t io_tlb_start, io_tlb_end;
+static phys_addr_t io_tlb_start, io_tlb_end;
/*
* The number of IO TLB blocks (in groups of 64) between io_tlb_start and
@@ -719,6 +719,11 @@ bool is_swiotlb_active(void)
return io_tlb_end != 0;
}
+bool is_swiotlb_buffer(phys_addr_t paddr)
+{
+ return paddr >= io_tlb_start && paddr < io_tlb_end;
+}
+
phys_addr_t get_swiotlb_start(void)
{
return io_tlb_start;
--
2.30.0.478.g8a0d178c01-goog
Powered by blists - more mailing lists