acpi_get_table_with_size() is invented to be a replacement of
acpi_get_table() during the early stage so that the early mapped pointer
will not be stored in ACPICA core (acpi_get_table() forces to do so) and
thus the late stage acpi_get_table() won't return a wrong stored pointer.
Since there is early_acpi_os_unmap_memory() required to be invoked as a
reversal of acpi_get_table_with_size(), ACPICA can provide acpi_put_table()
to achieve the same purpose. As long as all early stage acpi_get_table()
calls are paired by early stage acpi_put_table() calls, mappings should be
released before entering the late stage. And the late stage
acpi_get_table() calls will map the table using a late stage ioremap
mechanism.
This patchset cleans up the old APIs and reduces divergences between Linux
and ACPICA upstream.
Lv Zheng (4):
ACPICA: Tables: Back port acpi_get_table_with_size() and
early_acpi_os_unmap_memory() from Linux kernel
ACPICA: Tables: Allow FADT to be customized with virtual address
ACPI / osl: Remove
acpi_get_table_with_size()/early_acpi_os_unmap_memory() users
ACPI / osl: Remove deprecated
acpi_get_table_with_size()/early_acpi_os_unmap_memory()
arch/arm64/include/asm/acpi.h | 2 +-
arch/arm64/kernel/acpi.c | 7 +-
drivers/acpi/acpica/actables.h | 6 ++
drivers/acpi/acpica/tbfadt.c | 14 ++--
drivers/acpi/acpica/tbutils.c | 85 +++++++++++++++++++
drivers/acpi/acpica/tbxface.c | 130 +++++++++++++++++++-----------
drivers/acpi/bus.c | 2 +-
drivers/acpi/nfit/core.c | 3 +-
drivers/acpi/osl.c | 15 ++--
drivers/acpi/processor_core.c | 8 +-
drivers/acpi/spcr.c | 8 +-
drivers/acpi/tables.c | 17 ++--
drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 3 +-
drivers/gpu/drm/radeon/radeon_bios.c | 3 +-
drivers/iommu/amd_iommu_init.c | 10 +--
drivers/iommu/dmar.c | 7 +-
drivers/mailbox/pcc.c | 5 +-
include/acpi/acpi_io.h | 2 +
include/acpi/acpixf.h | 17 ++--
include/acpi/actbl.h | 1 +
include/acpi/platform/aclinuxex.h | 1 -
21 files changed, 224 insertions(+), 122 deletions(-)
--
1.7.10
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