acpi: remove duplicate declaration of acpi_fill_header()

acpi_fill_header() is declared twice in include/acpi/acpi_table.h

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

acpi: document HETP table

Document struct acpi_gen_regaddr and struct acpi_hpet.

Sphinx requires that the __packed attribute is at the end of the structure
definitions.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

acpi: rename aslc_id, aslc_revision

The fields Creator ID and Creator Revision contain information about the
tool that created an ACPI table. This may be the ASL compiler for some
tables but it is not for others. Naming these fields aslc_id and
aslc_revision is misleading.

It is usual to see diverse values of Creator ID. On a laptop I saw these:
'AMD ', 'INTL, 'MSFT', 'PTEC'. Obviously not all relate to the Intel
ASL compiler.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

acpi: use 64-bit addresses in FADT table

Fields X_FIRMWAE_CTRL and X_DSDT must be 64bit wide. Convert pointers to
to uintptr_t to fill these.

If field X_FIRMWARE_CTRL is filled, field FIRMWARE must be ignored. If
field X_DSDT is filled, field DSDT must be ignored. We should not fill
unused fields.

See the field definitions in chapter "5.2.9 Fixed ACPI Description Table
(FADT)" of the ACPI Specification 6.5.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

acpi: fix struct acpi_xsdt

The size of the ACPI table header is not a multiple of 8. We have to mark
struct acpi_xsdt as packed to correctly access field Entry.

Add a unit test for the offsets of field Entry in the RSDT and XSDT tables.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

acpi: move acpi_get_rsdp_addr() to acpi/acpi_table.h

Function acpi_get_rsdp_addr() is needed on all architectures which
write ACPI tables. Move the definition from the x86 include to an
architecture independent one.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

x86: Prevent from missing the FADT chaining

Recent approach with FADT writer shows that there is
a room for subtle errors. Prevent this from happening
again by introducing acpi_add_fadt() helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move the table-finding functions into the libary

This is useful for other features. Move the function into library code
so it can be used outside just the 'acpi' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move acpi_write_tables() to a generic header

This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Add some tables needed by ARM devices

Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.

WIP: This needs comments added.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Update acpi_fill_csrt() to use acpi_ctx

Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

x86: Move base tables to a writer function

Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Split out context creation from base tables

At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_fill_header() to the generic header

This function is not x86-specific so move it into the common header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: use 64-bit addresses in FADT table

Fields X_FIRMWAE_CTRL and X_DSDT must be 64bit wide. Convert pointers to
to uintptr_t to fill these.

If field X_FIRMWARE_CTRL is filled, field FIRMWARE must be ignored. If
field X_DSDT is filled, field DSDT must be ignored. We should not fill
unused fields.

See the field definitions in chapter "5.2.9 Fixed ACPI Description Table
(FADT)" of the ACPI Specification 6.5.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

acpi: fix struct acpi_xsdt

The size of the ACPI table header is not a multiple of 8. We have to mark
struct acpi_xsdt as packed to correctly access field Entry.

Add a unit test for the offsets of field Entry in the RSDT and XSDT tables.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

acpi: move acpi_get_rsdp_addr() to acpi/acpi_table.h

Function acpi_get_rsdp_addr() is needed on all architectures which
write ACPI tables. Move the definition from the x86 include to an
architecture independent one.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

x86: Prevent from missing the FADT chaining

Recent approach with FADT writer shows that there is
a room for subtle errors. Prevent this from happening
again by introducing acpi_add_fadt() helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move the table-finding functions into the libary

This is useful for other features. Move the function into library code
so it can be used outside just the 'acpi' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move acpi_write_tables() to a generic header

This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Add some tables needed by ARM devices

Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.

WIP: This needs comments added.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Update acpi_fill_csrt() to use acpi_ctx

Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

x86: Move base tables to a writer function

Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Split out context creation from base tables

At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_fill_header() to the generic header

This function is not x86-specific so move it into the common header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Prevent from missing the FADT chaining

Recent approach with FADT writer shows that there is
a room for subtle errors. Prevent this from happening
again by introducing acpi_add_fadt() helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move the table-finding functions into the libary

This is useful for other features. Move the function into library code
so it can be used outside just the 'acpi' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move acpi_write_tables() to a generic header

This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Add some tables needed by ARM devices

Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.

WIP: This needs comments added.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Update acpi_fill_csrt() to use acpi_ctx

Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

x86: Move base tables to a writer function

Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Split out context creation from base tables

At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_fill_header() to the generic header

This function is not x86-specific so move it into the common header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Move the table-finding functions into the libary

This is useful for other features. Move the function into library code
so it can be used outside just the 'acpi' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Move acpi_write_tables() to a generic header

This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Add some tables needed by ARM devices

Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.

WIP: This needs comments added.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Update acpi_fill_csrt() to use acpi_ctx

Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

x86: Move base tables to a writer function

Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Split out context creation from base tables

At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_fill_header() to the generic header

This function is not x86-specific so move it into the common header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Move acpi_write_tables() to a generic header

This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Add some tables needed by ARM devices

Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.

WIP: This needs comments added.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Update acpi_fill_csrt() to use acpi_ctx

Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

x86: Move base tables to a writer function

Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Split out context creation from base tables

At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_fill_header() to the generic header

This function is not x86-specific so move it into the common header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add some tables needed by ARM devices

Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.

WIP: This needs comments added.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Update acpi_fill_csrt() to use acpi_ctx

Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

x86: Move base tables to a writer function

Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Split out context creation from base tables

At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_fill_header() to the generic header

This function is not x86-specific so move it into the common header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Allow putting some tables in the bloblist

At present all tables are placed starting at address f0000 in memory, and
can be up to 64KB in size. If the tables are very large, this may not
provide enough space.

Also if the tables point to other tables (such as console log or a ramoops
area) then we must allocate other memory anyway.

The bloblist is a nice place to put these tables since it is contiguous,
which makes it easy to reserve this memory for linux using the 820 tables.

Add an option to put some of the tables in the bloblist. For SMBIOS and
ACPI, create suitable pointers from the f0000 region to the new location
of the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/
20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

x86: Move include of bitops out of ACPI region

At present linux/bitops.h is included in ACPI code. This is not needed and
can cause a problem in fls64.h since BITS_PER_LONG is not defined. Move
the #include into the part not used by ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Use defines for field lengths

A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: tpm: Add a TPM1 table

This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.

Add a required new bloblist type and correct the header order of one
header file.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: tpm: Add a TPM2 table

This provides information about a v2 TPM in the system. Generate this
table if the TPM is present.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Add support for additional Intel tables

Apollo Lake needs to generate a few more table types used on Intel SoCs.
Add support for these into the x86 ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the DBG2 table

Add an implementation of the DBG2 (Debug Port Table 2) ACPI table.
Adjust one of the header includes to be in the correct order, before
adding more.

Note that the DBG2 table is generic but the PCI UART is x86-specific at
present since it assumes an ns16550 UART. It can be generalised later
if necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: acpi: Support generation of the HPET table

Add an implementation of the HPET (High Precision Event Timer) ACPI
table. Since this is x86-specific, put it in an x86-specific file

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Put table-setup code in its own function

We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>

acpi: Move acpi_add_table() to generic code

Move this code to a generic location so that we can test it with sandbox.
This requires adding a few new fields to acpi_ctx, so drop the local
variables used in the original code.

Also use mapmem to avoid pointer-to-address casts which don't work on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Convert part of acpi_table to use acpi_ctx

The current code uses an address but a pointer would result in fewer
casts. Also it repeats the alignment code in a lot of places so this would
be better done in a helper function.

Update write_acpi_tables() to make use of the new acpi_ctx structure,
adding a few helpers to clean things up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a method to write tables for a device

A device may want to write out ACPI tables to describe itself to Linux.
Add a method to permit this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add support for DMAR

The DMA Remapping Reporting (DMAR) table contains information about DMA
remapping.

Add a version simple version of this table with only the minimum fields
filled out. i.e. no entries.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

acpi: Add a central location for table version numbers

Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.

Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

acpi: Add an __ACPI__ preprocessor symbol

The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.

We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.

Add the check to a few files that ACPI always includes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

x86: Move acpi_table header to main include/ directory

This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>