33 lines
1.0 KiB
Diff
33 lines
1.0 KiB
Diff
From 9fb3f4d950744e97cc655b7d7b523d8bf101e4a0 Mon Sep 17 00:00:00 2001
|
|
From: Magnus Christensson <mch@virtutech.com>
|
|
Date: Wed, 25 Nov 2009 16:26:58 +0100
|
|
Subject: [PATCH] Fix PkgLength calculation for the SSDT.
|
|
|
|
Signed-off-by: Magnus Christensson <mch@virtutech.com>
|
|
---
|
|
src/acpi.c | 6 ++++--
|
|
1 files changed, 4 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/src/acpi.c b/src/acpi.c
|
|
index f613b03..244536a 100644
|
|
--- a/src/acpi.c
|
|
+++ b/src/acpi.c
|
|
@@ -429,10 +429,12 @@ build_ssdt(void)
|
|
// build processor scope header
|
|
*(ssdt_ptr++) = 0x10; // ScopeOp
|
|
if (cpu_length <= 0x3e) {
|
|
+ /* Handle 1-4 CPUs with one byte encoding */
|
|
*(ssdt_ptr++) = cpu_length + 1;
|
|
} else {
|
|
- *(ssdt_ptr++) = 0x7F;
|
|
- *(ssdt_ptr++) = (cpu_length + 2) >> 6;
|
|
+ /* Handle 5-314 CPUs with two byte encoding */
|
|
+ *(ssdt_ptr++) = 0x40 | ((cpu_length + 2) & 0xf);
|
|
+ *(ssdt_ptr++) = (cpu_length + 2) >> 4;
|
|
}
|
|
*(ssdt_ptr++) = '_'; // Name
|
|
*(ssdt_ptr++) = 'P';
|
|
--
|
|
1.6.6.1
|
|
|