diff options
Diffstat (limited to 'drivers/acpi/acpi_processor.c')
-rw-r--r-- | drivers/acpi/acpi_processor.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index b51ddf3bb616..412a9725cc1e 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -798,22 +798,34 @@ int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, memset(&cx, 0, sizeof(cx)); element = &cst->package.elements[i]; - if (element->type != ACPI_TYPE_PACKAGE) + if (element->type != ACPI_TYPE_PACKAGE) { + acpi_handle_info(handle, "_CST C%d type(%x) is not package, skip...\n", + i, element->type); continue; + } - if (element->package.count != 4) + if (element->package.count != 4) { + acpi_handle_info(handle, "_CST C%d package count(%d) is not 4, skip...\n", + i, element->package.count); continue; + } obj = &element->package.elements[0]; - if (obj->type != ACPI_TYPE_BUFFER) + if (obj->type != ACPI_TYPE_BUFFER) { + acpi_handle_info(handle, "_CST C%d package element[0] type(%x) is not buffer, skip...\n", + i, obj->type); continue; + } reg = (struct acpi_power_register *)obj->buffer.pointer; obj = &element->package.elements[1]; - if (obj->type != ACPI_TYPE_INTEGER) + if (obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_info(handle, "_CST C[%d] package element[1] type(%x) is not integer, skip...\n", + i, obj->type); continue; + } cx.type = obj->integer.value; /* @@ -850,6 +862,8 @@ int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, cx.entry_method = ACPI_CSTATE_HALT; snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT"); } else { + acpi_handle_info(handle, "_CST C%d declares FIXED_HARDWARE C-state but not supported in hardware, skip...\n", + i); continue; } } else if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) { @@ -857,6 +871,8 @@ int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI IOPORT 0x%x", cx.address); } else { + acpi_handle_info(handle, "_CST C%d space_id(%x) neither FIXED_HARDWARE nor SYSTEM_IO, skip...\n", + i, reg->space_id); continue; } @@ -864,14 +880,20 @@ int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, cx.valid = 1; obj = &element->package.elements[2]; - if (obj->type != ACPI_TYPE_INTEGER) + if (obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_info(handle, "_CST C%d package element[2] type(%x) not integer, skip...\n", + i, obj->type); continue; + } cx.latency = obj->integer.value; obj = &element->package.elements[3]; - if (obj->type != ACPI_TYPE_INTEGER) + if (obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_info(handle, "_CST C%d package element[3] type(%x) not integer, skip...\n", + i, obj->type); continue; + } memcpy(&info->states[++last_index], &cx, sizeof(cx)); } |