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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-14 21:42:04 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-14 21:42:04 +0300 |
commit | cf1d2b44f6c701ffff58606b5b8a8996190d6e7d (patch) | |
tree | a1306bfa0cb2e58f21954ab1ef9b6c8da558f59e /drivers/acpi/acpica/hwgpe.c | |
parent | 0b8417c14181595997091145342954332fa016cd (diff) | |
parent | 8be2362d10e8b0ea9844706d8c388480d37226d2 (diff) | |
download | linux-cf1d2b44f6c701ffff58606b5b8a8996190d6e7d.tar.xz |
Merge tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These add support for generic initiator-only proximity domains to the
ACPI NUMA code and the architectures using it, clean up some
non-ACPICA code referring to debug facilities from ACPICA, reduce the
overhead related to accessing GPE registers, add a new DPTF (Dynamic
Power and Thermal Framework) participant driver, update the ACPICA
code in the kernel to upstream revision 20200925, add a new ACPI
backlight whitelist entry, fix a few assorted issues and clean up some
code.
Specifics:
- Add support for generic initiator-only proximity domains to the
ACPI NUMA code and the architectures using it (Jonathan Cameron)
- Clean up some non-ACPICA code referring to debug facilities from
ACPICA that are not actually used in there (Hanjun Guo)
- Add new DPTF driver for the PCH FIVR participant (Srinivas
Pandruvada)
- Reduce overhead related to accessing GPE registers in ACPICA and
the OS interface layer and make it possible to access GPE registers
using logical addresses if they are memory-mapped (Rafael Wysocki)
- Update the ACPICA code in the kernel to upstream revision 20200925
including changes as follows:
+ Add predefined names from the SMBus sepcification (Bob Moore)
+ Update acpi_help UUID list (Bob Moore)
+ Return exceptions for string-to-integer conversions in iASL (Bob
Moore)
+ Add a new "ALL <NameSeg>" debugger command (Bob Moore)
+ Add support for 64 bit risc-v compilation (Colin Ian King)
+ Do assorted cleanups (Bob Moore, Colin Ian King, Randy Dunlap)
- Add new ACPI backlight whitelist entry for HP 635 Notebook (Alex
Hung)
- Move TPS68470 OpRegion driver to drivers/acpi/pmic/ and split out
Kconfig and Makefile specific for ACPI PMIC (Andy Shevchenko)
- Clean up the ACPI SoC driver for AMD SoCs (Hanjun Guo)
- Add missing config_item_put() to fix refcount leak (Hanjun Guo)
- Drop lefrover field from struct acpi_memory_device (Hanjun Guo)
- Make the ACPI extlog driver check for RDMSR failures (Ben
Hutchings)
- Fix handling of lid state changes in the ACPI button driver when
input device is closed (Dmitry Torokhov)
- Fix several assorted build issues (Barnabás Pőcze, John Garry,
Nathan Chancellor, Tian Tao)
- Drop unused inline functions and reduce code duplication by using
kobj_to_dev() in the NFIT parsing code (YueHaibing, Wang Qing)
- Serialize tools/power/acpi Makefile (Thomas Renninger)"
* tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
ACPICA: Update version to 20200925 Version 20200925
ACPICA: Remove unnecessary semicolon
ACPICA: Debugger: Add a new command: "ALL <NameSeg>"
ACPICA: iASL: Return exceptions for string-to-integer conversions
ACPICA: acpi_help: Update UUID list
ACPICA: Add predefined names found in the SMBus sepcification
ACPICA: Tree-wide: fix various typos and spelling mistakes
ACPICA: Drop the repeated word "an" in a comment
ACPICA: Add support for 64 bit risc-v compilation
ACPI: button: fix handling lid state changes when input device closed
tools/power/acpi: Serialize Makefile
ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
ACPI: memhotplug: Remove 'state' from struct acpi_memory_device
ACPI / extlog: Check for RDMSR failure
ACPI: Make acpi_evaluate_dsm() prototype consistent
docs: mm: numaperf.rst Add brief description for access class 1.
node: Add access1 class to represent CPU to memory characteristics
ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
ACPI: Let ACPI know we support Generic Initiator Affinity Structures
x86: Support Generic Initiator only proximity domains
...
Diffstat (limited to 'drivers/acpi/acpica/hwgpe.c')
-rw-r--r-- | drivers/acpi/acpica/hwgpe.c | 102 |
1 files changed, 86 insertions, 16 deletions
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index 49c46d4dd070..37bb67ef3232 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -26,6 +26,76 @@ acpi_hw_gpe_enable_write(u8 enable_mask, /****************************************************************************** * + * FUNCTION: acpi_hw_gpe_read + * + * PARAMETERS: value - Where the value is returned + * reg - GPE register structure + * + * RETURN: Status + * + * DESCRIPTION: Read from a GPE register in either memory or IO space. + * + * LIMITATIONS: <These limitations also apply to acpi_hw_gpe_write> + * space_ID must be system_memory or system_IO. + * + ******************************************************************************/ + +acpi_status acpi_hw_gpe_read(u64 *value, struct acpi_gpe_address *reg) +{ + acpi_status status; + u32 value32; + + if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { +#ifdef ACPI_GPE_USE_LOGICAL_ADDRESSES + *value = (u64)ACPI_GET8(reg->address); + return_ACPI_STATUS(AE_OK); +#else + return acpi_os_read_memory((acpi_physical_address)reg->address, + value, ACPI_GPE_REGISTER_WIDTH); +#endif + } + + status = acpi_os_read_port((acpi_io_address)reg->address, + &value32, ACPI_GPE_REGISTER_WIDTH); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); + + *value = (u64)value32; + + return_ACPI_STATUS(AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_gpe_write + * + * PARAMETERS: value - Value to be written + * reg - GPE register structure + * + * RETURN: Status + * + * DESCRIPTION: Write to a GPE register in either memory or IO space. + * + ******************************************************************************/ + +acpi_status acpi_hw_gpe_write(u64 value, struct acpi_gpe_address *reg) +{ + if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { +#ifdef ACPI_GPE_USE_LOGICAL_ADDRESSES + ACPI_SET8(reg->address, value); + return_ACPI_STATUS(AE_OK); +#else + return acpi_os_write_memory((acpi_physical_address)reg->address, + value, ACPI_GPE_REGISTER_WIDTH); +#endif + } + + return acpi_os_write_port((acpi_io_address)reg->address, (u32)value, + ACPI_GPE_REGISTER_WIDTH); +} + +/****************************************************************************** + * * FUNCTION: acpi_hw_get_gpe_register_bit * * PARAMETERS: gpe_event_info - Info block for the GPE @@ -79,7 +149,8 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action) /* Get current value of the enable register that contains this GPE */ - status = acpi_hw_read(&enable_mask, &gpe_register_info->enable_address); + status = acpi_hw_gpe_read(&enable_mask, + &gpe_register_info->enable_address); if (ACPI_FAILURE(status)) { return (status); } @@ -118,9 +189,8 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action) /* Write the updated enable mask */ - status = - acpi_hw_write(enable_mask, - &gpe_register_info->enable_address); + status = acpi_hw_gpe_write(enable_mask, + &gpe_register_info->enable_address); } return (status); } @@ -158,8 +228,8 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info *gpe_event_info) */ register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info); - status = - acpi_hw_write(register_bit, &gpe_register_info->status_address); + status = acpi_hw_gpe_write(register_bit, + &gpe_register_info->status_address); return (status); } @@ -227,7 +297,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info, /* GPE currently enabled (enable bit == 1)? */ - status = acpi_hw_read(&in_byte, &gpe_register_info->enable_address); + status = acpi_hw_gpe_read(&in_byte, &gpe_register_info->enable_address); if (ACPI_FAILURE(status)) { return (status); } @@ -238,7 +308,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info, /* GPE currently active (status bit == 1)? */ - status = acpi_hw_read(&in_byte, &gpe_register_info->status_address); + status = acpi_hw_gpe_read(&in_byte, &gpe_register_info->status_address); if (ACPI_FAILURE(status)) { return (status); } @@ -274,7 +344,8 @@ acpi_hw_gpe_enable_write(u8 enable_mask, gpe_register_info->enable_mask = enable_mask; - status = acpi_hw_write(enable_mask, &gpe_register_info->enable_address); + status = acpi_hw_gpe_write(enable_mask, + &gpe_register_info->enable_address); return (status); } @@ -341,9 +412,8 @@ acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /* Clear status on all GPEs in this register */ - status = - acpi_hw_write(0xFF, - &gpe_block->register_info[i].status_address); + status = acpi_hw_gpe_write(0xFF, + &gpe_block->register_info[i].status_address); if (ACPI_FAILURE(status)) { return (status); } @@ -481,14 +551,14 @@ acpi_hw_get_gpe_block_status(struct acpi_gpe_xrupt_info *gpe_xrupt_info, for (i = 0; i < gpe_block->register_count; i++) { gpe_register_info = &gpe_block->register_info[i]; - status = acpi_hw_read(&in_enable, - &gpe_register_info->enable_address); + status = acpi_hw_gpe_read(&in_enable, + &gpe_register_info->enable_address); if (ACPI_FAILURE(status)) { continue; } - status = acpi_hw_read(&in_status, - &gpe_register_info->status_address); + status = acpi_hw_gpe_read(&in_status, + &gpe_register_info->status_address); if (ACPI_FAILURE(status)) { continue; } |