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[V2,0/2] DMA: update acpi_dma_get_range to return dma map regions

Message ID 1659684674-40612-1-git-send-email-lvjianmin@loongson.cn
Headers show
Series DMA: update acpi_dma_get_range to return dma map regions | expand

Message

Jianmin Lv Aug. 5, 2022, 7:31 a.m. UTC 
The patch series changed acpi_dma_get_range to return dma regions
as of_dma_get_range, so that dev->dma_range_map can be initialized
conveniently.

And acpi_arch_dma_setup for ARM64 is changed wih removing dma_base
and size from it's parameters.

Remove ARCH_HAS_PHYS_TO_DMA for LoongArch and use generic
phys_to_dma/dma_to_phys in include/linux/dma-direct.h.

V1 -> V2
- Removed dma_base and size from acpi_arch_dma_setup' parameters
- Add patch to remove ARCH_HAS_PHYS_TO_DMA for LoongArch

Jianmin Lv (2):
  ACPI / scan: Support multiple dma windows with different offsets
  LoongArch: Remove ARCH_HAS_PHYS_TO_DMA

 arch/loongarch/Kconfig        |  1 -
 arch/loongarch/kernel/dma.c   | 62 +++++++++++++++++++++----------------------
 arch/loongarch/kernel/setup.c |  2 +-
 drivers/acpi/arm64/dma.c      | 44 ++++++++++++++++++++++--------
 drivers/acpi/scan.c           | 48 ++++++++++++++++-----------------
 include/acpi/acpi_bus.h       |  3 +--
 include/linux/acpi.h          | 12 +++++----
 7 files changed, 97 insertions(+), 75 deletions(-)