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| author | Bob Moore <robert.moore@intel.com> | 2022-04-11 20:51:27 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-04-13 20:24:57 +0200 |
| commit | 39ea1bbf270a617c81369f2867ca14b8eac331bd (patch) | |
| tree | 7f800a0310030f410eca4365af3395a12a7f8881 /drivers/acpi/acpica/exoparg1.c | |
| parent | ACPICA: iASL: NHLT: Rename linux specific strucures to device_info (diff) | |
| download | linux-39ea1bbf270a617c81369f2867ca14b8eac331bd.tar.xz linux-39ea1bbf270a617c81369f2867ca14b8eac331bd.zip | |
ACPICA: Add new ACPI 6.4 semantics to the Load() operator
ACPICA commit 84bf573ab7222c4e1c22167b22d29c4da1552b20
DDB_HANDLE is gone, now Load() returns a pass/fail integer, as well as
storing it in an optional 2nd argument.
Link: https://github.com/acpica/acpica/commit/84bf573a
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/exoparg1.c')
| -rw-r--r-- | drivers/acpi/acpica/exoparg1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index 44b7c350ed5c..6070c89a56d8 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -163,6 +163,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) return_ACPI_STATUS(status); } +#ifdef _OBSOLETE_CODE /* Was originally used for Load() operator */ /******************************************************************************* * * FUNCTION: acpi_ex_opcode_1A_1T_0R @@ -187,10 +188,12 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) /* Examine the AML opcode */ switch (walk_state->opcode) { +#ifdef _OBSOLETE_CODE case AML_LOAD_OP: status = acpi_ex_load_op(operand[0], operand[1], walk_state); break; +#endif default: /* Unknown opcode */ @@ -204,6 +207,7 @@ cleanup: return_ACPI_STATUS(status); } +#endif /******************************************************************************* * @@ -215,6 +219,8 @@ cleanup: * * DESCRIPTION: Execute opcode with one argument, one target, and a * return value. + * January 2022: Added Load operator, with new ACPI 6.4 + * semantics. * ******************************************************************************/ @@ -239,6 +245,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) case AML_FIND_SET_LEFT_BIT_OP: case AML_FIND_SET_RIGHT_BIT_OP: case AML_FROM_BCD_OP: + case AML_LOAD_OP: case AML_TO_BCD_OP: case AML_CONDITIONAL_REF_OF_OP: @@ -338,6 +345,20 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) } break; + case AML_LOAD_OP: /* Result1 = Load (Operand[0], Result1) */ + + return_desc->integer.value = 0; + status = + acpi_ex_load_op(operand[0], return_desc, + walk_state); + if (ACPI_SUCCESS(status)) { + + /* Return -1 (non-zero) indicates success */ + + return_desc->integer.value = 0xFFFFFFFFFFFFFFFF; + } + break; + case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */ return_desc->integer.value = 0; |