linux-kernel - [PATCH V5 0/2] DMA: update acpi_dma_get

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Message-Id: <20220911090635.5559-1-lvjianmin@loongson.cn>
Date:   Sun, 11 Sep 2022 17:06:33 +0800
From:   Jianmin Lv <lvjianmin@...ngson.cn>
To:     lpieralisi@...nel.org, robin.murphy@....com, chenhuacai@...ngson.cn
Cc:     guohanjun@...wei.com, sudeep.holla@....com, rafael@...nel.org,
        lenb@...nel.org, robert.moore@...el.com,
        linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        loongarch@...ts.linux.dev
Subject: [PATCH V5 0/2] DMA: update acpi_dma_get_range to return dma map regions 

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

V2 -> V3
- Add kerneldoc for acpi_dma_get_range changing
- Remove redundant code in acpi_arch_dma_setup, and check map

V3 -> V4
- Change title to "Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA"
- Use resource_size() to get size 

V4 -> V5
- Change commit log for patch: Support multiple dma windows with different offsets
- Remove a unnecessary blank line
- Fix a bug of acpi_dma_get_range

Jianmin Lv (2):
  ACPI / scan: Support multiple dma windows with different offsets
  LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA

 arch/loongarch/Kconfig        |  1 -
 arch/loongarch/kernel/dma.c   | 52 ++++++++++++++--------------------
 arch/loongarch/kernel/setup.c |  2 +-
 drivers/acpi/arm64/dma.c      | 28 ++++++++++--------
 drivers/acpi/scan.c           | 53 +++++++++++++++--------------------
 include/acpi/acpi_bus.h       |  3 +-
 include/linux/acpi.h          | 12 ++++----
 7 files changed, 70 insertions(+), 81 deletions(-)

-- 
2.31.1