From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sowmini Varadhan Date: Sun, 22 Mar 2015 19:22:51 +0000 Subject: [PATCH v5 RFC 0/3] Generic IOMMU pooled allocator Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: aik@au1.ibm.com, anton@au1.ibm.com, paulus@samba.org, sowmini.varadhan@oracle.com, davem@davemloft.net Follows up on the feedback in the thread at http://www.spinics.net/lists/sparclinux/msg13493.html - removed ->cookie_to_index and ->demap indirection from the iommu_tbl_ops The caller needs to call these functions as needed, before invoking the generic arena allocator functions. - added the "skip_span_boundary" argument to iommu_tbl_pool_init() for those callers like LDC which do no care about span boundary checks. Sowmini (2): Break up monolithic iommu table/lock into finer graularity pools and lock Make sparc64 use scalable lib/iommu-common.c functions Sowmini Varadhan (1): Make LDC use common iommu poll management functions arch/sparc/include/asm/iommu_64.h | 7 +- arch/sparc/kernel/iommu.c | 187 +++++++++++--------------------- arch/sparc/kernel/iommu_common.h | 8 -- arch/sparc/kernel/ldc.c | 172 ++++++++++++++--------------- arch/sparc/kernel/pci_sun4v.c | 194 ++++++++++++++++----------------- include/linux/iommu-common.h | 55 +++++++++ lib/Makefile | 2 +- lib/iommu-common.c | 219 +++++++++++++++++++++++++++++++++++++ 8 files changed, 519 insertions(+), 325 deletions(-) create mode 100644 include/linux/iommu-common.h create mode 100644 lib/iommu-common.c