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Merge "iommu/io-pgtable: Deprecate IO_PGTABLE_QUIRK_NO_DMA"

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qctecmdr 2019-10-24 20:49:18 -07:00 • committed by Gerrit - the friendly Code Review server
commit 52fabc3455
2 changed files with 4 additions and 11 deletions
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5
drivers/iommu/Kconfig
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@ -108,9 +108,8 @@ config QCOM_IOMMU_IO_PGTABLE_QUIRKS
help
Enables some quirks that are used when creating the IOMMU's
page tables for a particular domain for faster translations.
The quirks that are supported deal with allowing for page
tables to be IO-coherent, allowing for page tables to be
saved in the system cache, and disabling the write-allocate
The quirks that are supported deal with allowing for page tables
to be saved in the system cache, and disabling the write-allocate
hint when saving page tables in the system cache.
If unsure, say N here.

10
include/linux/io-pgtable.h
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@ -109,11 +109,6 @@ struct io_pgtable_cfg {
* on unmap, for DMA domains using the flush queue mechanism for
* delayed invalidation.
*
* IO_PGTABLE_QUIRK_NO_DMA: Guarantees that the tables will only ever
* be accessed by a fully cache-coherent IOMMU or CPU (e.g. for a
* software-emulated IOMMU), such that pagetable updates need not
* be treated as explicit DMA data.
*
* IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT: Override the attributes
* set in TCR for the page table walker. Use attributes specified
* by the upstream hw instead.
@ -128,9 +123,8 @@ struct io_pgtable_cfg {
#define IO_PGTABLE_QUIRK_TLBI_ON_MAP BIT(2)
#define IO_PGTABLE_QUIRK_ARM_MTK_EXT BIT(3)
#define IO_PGTABLE_QUIRK_NON_STRICT BIT(4)
#define IO_PGTABLE_QUIRK_NO_DMA BIT(5)
#define IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT BIT(6)
#define IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA BIT(7)
#define IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT BIT(5)
#define IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA BIT(6)
unsigned long quirks;
unsigned long pgsize_bitmap;
unsigned int ias;