Hi Linus,
The following changes since commit cbfe8fa6cd672011c755c3cd85c9ffd4e2d10a6f:
Linux 4.2-rc4 (2015-07-26 12:26:21 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
tags/iommu-fixes-v4.2-rc4
for you to fetch changes up to
With iommu_dma_ops in place, hook them up to the configuration code, so
IOMMU-fronted devices will get them automatically.
Acked-by: Catalin Marinas catalin.mari...@arm.com
Signed-off-by: Robin Murphy robin.mur...@arm.com
---
arch/arm64/Kconfig | 1 +
Taking inspiration from the existing arch/arm code, break out some
generic functions to interface the DMA-API to the IOMMU-API. This will
do the bulk of the heavy lifting for IOMMU-backed dma-mapping.
Signed-off-by: Robin Murphy robin.mur...@arm.com
---
drivers/iommu/Kconfig | 7 +
Hi all,
Here's an update following Catalin's feedback on v4[1].
Changes this round:
- Rebased onto linux-next
- IOVA alignment fix applied already
- iommu_iova_cache_init() is now iova_cache_get()
- Tidied up iommu_dma_alloc()
- Simplified pgprot handling
- Removed redundant memset
-
On Mon, 2015-07-27 at 12:21 +0800, Yong Wu wrote:
On Fri, 2015-07-24 at 17:53 +0100, Will Deacon wrote:
On Fri, Jul 24, 2015 at 06:24:26AM +0100, Yong Wu wrote:
On Tue, 2015-07-21 at 18:11 +0100, Will Deacon wrote:
On Thu, Jul 16, 2015 at 10:04:32AM +0100, Yong Wu wrote:
+/* level
On Thu, Jul 30, 2015 at 08:54:04PM +, Chalamarla, Tirumalesh wrote:
is some thing like this looks good
+#ifdef CONFIG_64BIT
+#define smmu_writeq(reg64, addr) writeq_relaxed((reg64), (addr))
+#else
+#define smmu_writeq(reg64, addr) \
+
Hi Robin,
On Wed, Jul 29, 2015 at 07:46:04PM +0100, Robin Murphy wrote:
Currently, users of the LPAE page table code are (ab)using dma_map_page()
as a means to flush page table updates for non-coherent IOMMUs. Since
from the CPU's point of view, creating IOMMU page tables *is* passing
DMA
On Thu, Jul 30, 2015 at 09:54:04PM +0100, Chalamarla, Tirumalesh wrote:
is some thing like this looks good
That's the right sort of idea, but please send a proper patch that you've
actually tested. The diff below mixes up reg64 and reg.
Will
+#ifdef CONFIG_64BIT
+#define smmu_writeq(reg64,
On Fri, Jul 31, 2015 at 08:55:37AM +0100, Yong Wu wrote:
About the AP bits, I may have to add a new quirk for it...
Current I add AP in pte like this:
#define ARM_SHORT_PTE_RD_WR(3 4)
#define ARM_SHORT_PTE_RDONLY BIT(9)
pteprot |= ARM_SHORT_PTE_RD_WR;
If(!(prot
