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  1. 24 Jan, 2017 9 commits
    • Bart Van Assche's avatar
      RDS: IB: Remove an unused structure member · 69324c20
      Bart Van Assche authored 
      Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@oracle.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: rds-devel@oss.oracle.com
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      69324c20
    • Bart Van Assche's avatar
      IB/core: Remove ib_dma_*map_single_attrs() · 6532c380
      Bart Van Assche authored 
      Remove these functions because these are not used. Additionally, the
implementation of these functions is not correct for the hfi1, qib and
rxe drivers because dma_device is used instead of dma_ops.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      6532c380
    • Bart Van Assche's avatar
      lib/dma-virt: Add dma_virt_ops · 551199ac
      Bart Van Assche authored 
      Several RDMA drivers (hfi1, qib and rxe) expect that ib_sge.addr
is a virtual address. Provide DMA mapping operations that are
suitable for these drivers.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      551199ac
    • Bart Van Assche's avatar
      lib/dma-noop: Only build dma_noop_ops for s390 and m32r · 7844572c
      Bart Van Assche authored 
      Reduce the kernel size by only building dma_noop_ops for those
architectures that actually use it. This was suggested by
Christoph Hellwig.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      7844572c
    • Bart Van Assche's avatar
      lib/dma-noop: Clarify a comment · 1eec9e2b
      Bart Van Assche authored 
      The next patch in this series will introduce another set of DMA
operations that map 1:1 with memory. Clarify that dma-noop maps
to physical addresses.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      1eec9e2b
    • Bart Van Assche's avatar
      treewide: Consolidate get_dma_ops() implementations · 815dd187
      Bart Van Assche authored 
      Introduce a new architecture-specific get_arch_dma_ops() function
that takes a struct bus_type * argument. Add get_dma_ops() in
<linux/dma-mapping.h>.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      815dd187
    • Bart Van Assche's avatar
      treewide: Consolidate set_dma_ops() implementations · ca6e8e10
      Bart Van Assche authored 
      Now that all set_dma_ops() implementations are identical (ignoring
BUG_ON() statements), remove the architecture specific definitions
and add a definition in <linux/dma-mapping.h>.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Paul Mackerras <paulus@samba.org>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      ca6e8e10
    • Bart Van Assche's avatar
      treewide: Move dma_ops from struct dev_archdata into struct device · 5657933d
      Bart Van Assche authored 
      Some but not all architectures provide set_dma_ops(). Move dma_ops
from struct dev_archdata into struct device such that it becomes
possible on all architectures to configure dma_ops per device.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      5657933d
    • Bart Van Assche's avatar
      treewide: Constify most dma_map_ops structures · 5299709d
      Bart Van Assche authored 
      Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:

git grep -l 'struct dma_map_ops' |
  xargs -d\\n sed -i \
    -e 's/struct dma_map_ops/const struct dma_map_ops/g' \
    -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
    -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
    -e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
  $(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
  $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
       -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
       -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
    drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c
sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      5299709d
  3. 13 Jan, 2017 4 commits
  5. 12 Jan, 2017 18 commits
  7. 10 Jan, 2017 9 commits
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