Messages in this thread | | | Date | Wed, 1 Sep 2021 17:08:53 -0400 | From | Konrad Rzeszutek Wilk <> | Subject | [GIT PULL] (swiotlb) stable/for-linus-5.15 |
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Hey Linus,
Please git pull the following branch:
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb.git stable/for-linus-5.15
which has a new feature called restricted DMA pools. It allows SWIOTLB to utilize per-device (or per-platform) allocated memory pools instead of using the global one.
The first big user of this is ARM Confidential Computing where the memory for DMA operations can be set per platform.
Please pull:
.../bindings/reserved-memory/reserved-memory.txt | 36 ++- arch/powerpc/platforms/pseries/svm.c | 6 + arch/s390/mm/init.c | 2 +- drivers/base/core.c | 4 + drivers/gpu/drm/i915/gem/i915_gem_internal.c | 2 +- drivers/gpu/drm/nouveau/nouveau_ttm.c | 2 +- drivers/iommu/dma-iommu.c | 12 +- drivers/of/device.c | 40 +++ drivers/pci/xen-pcifront.c | 2 +- drivers/xen/swiotlb-xen.c | 8 +- include/linux/device.h | 4 + include/linux/swiotlb.h | 57 +++- kernel/dma/Kconfig | 13 + kernel/dma/direct.c | 59 +++- kernel/dma/direct.h | 8 +- kernel/dma/swiotlb.c | 352 +++++++++++++++------ 16 files changed, 469 insertions(+), 138 deletions(-)
Claire Chang (14): swiotlb: Refactor swiotlb init functions swiotlb: Refactor swiotlb_create_debugfs swiotlb: Set dev->dma_io_tlb_mem to the swiotlb pool used swiotlb: Update is_swiotlb_buffer to add a struct device argument swiotlb: Update is_swiotlb_active to add a struct device argument swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing swiotlb: Move alloc_size to swiotlb_find_slots swiotlb: Refactor swiotlb_tbl_unmap_single swiotlb: Add restricted DMA alloc/free support swiotlb: Add restricted DMA pool initialization dt-bindings: of: Add restricted DMA pool of: Add plumbing for restricted DMA pool swiotlb: fix implicit debugfs declarations swiotlb: use depends on for DMA_RESTRICTED_POOL
Dominique Martinet (1): swiotlb: add overflow checks to swiotlb_bounce
Halil Pasic (1): s390/pv: fix the forcing of the swiotlb
Will Deacon (7): of: Return success from of_dma_set_restricted_buffer() when !OF_ADDRESS swiotlb: Convert io_default_tlb_mem to static allocation swiotlb: Emit diagnostic in swiotlb_exit() swiotlb: Free tbl memory in swiotlb_exit() powerpc/svm: Don't issue ultracalls if !mem_encrypt_active() of: Move of_dma_set_restricted_buffer() into device.c of: restricted dma: Don't fail device probe on rmem init failure
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