diff options
| author | Lv Zheng <lv.zheng@intel.com> | 2017-08-03 14:26:19 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-08-03 23:34:15 +0200 |
| commit | 4eebedd8f1a6609739c2e9a9b020791b23cbcceb (patch) | |
| tree | 0f971e4f5bda4df87f5b2153d11b88b958ec8472 /include/acpi | |
| parent | ab539eaa50c6a97f1d6287c5ce3ee75155cb10b8 (diff) | |
| download | linux-4eebedd8f1a6609739c2e9a9b020791b23cbcceb.tar.gz linux-4eebedd8f1a6609739c2e9a9b020791b23cbcceb.tar.bz2 linux-4eebedd8f1a6609739c2e9a9b020791b23cbcceb.zip | |
ACPICA: Divergences: reduce access size definitions
ACPICA commit cf27b3c98883d2a15d932016792fcb8272ace96d
The following commit introduces definition of access width to ACPICA.
Commit: 2bece49394872d36bbc5767fd643deac05920c55
Subject: ACPI: SPCR: Use access width to determine mmio usage
Actually the access bit width can be calculated via access width. It
would be better to define a macro calculating bit width rather than
defining fixed values. This patch thus cleans up the definitions to
reduce divergences.
Link: https://github.com/acpica/acpica/commit/cf27b3c9
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acrestyp.h | 7 | ||||
| -rw-r--r-- | include/acpi/actypes.h | 7 |
2 files changed, 7 insertions, 7 deletions
diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h index 4f7f39a02820..343dbdcef20c 100644 --- a/include/acpi/acrestyp.h +++ b/include/acpi/acrestyp.h @@ -377,13 +377,6 @@ struct acpi_resource_generic_register { u64 address; }; -/* Generic Address Space Access Sizes */ -#define ACPI_ACCESS_SIZE_UNDEFINED 0 -#define ACPI_ACCESS_SIZE_BYTE 1 -#define ACPI_ACCESS_SIZE_WORD 2 -#define ACPI_ACCESS_SIZE_DWORD 3 -#define ACPI_ACCESS_SIZE_QWORD 4 - struct acpi_resource_gpio { u8 revision_id; u8 connection_type; diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 2fcbaec8b368..0260be595d40 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -554,6 +554,13 @@ typedef u64 acpi_integer; #define ACPI_VALIDATE_RSDP_SIG(a) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8)) #define ACPI_MAKE_RSDP_SIG(dest) (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8)) +/* + * Algorithm to obtain access bit width. + * Can be used with access_width of struct acpi_generic_address and access_size of + * struct acpi_resource_generic_register. + */ +#define ACPI_ACCESS_BIT_WIDTH(size) (1 << ((size) + 2)) + /******************************************************************************* * * Miscellaneous constants |