From df444bf68abe840ad05d689996110e9354a2fa6e Mon Sep 17 00:00:00 2001
From: Patrick Georgi <patrick.georgi@coresystems.de>
Date: Tue, 21 Apr 2009 20:34:36 +0000
Subject: Add a helper function to acpigen to create _PSD tables.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4154 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
---
src/arch/i386/boot/acpigen.c | 18 ++++++++++++++++++
src/arch/i386/include/arch/acpigen.h | 2 ++
2 files changed, 20 insertions(+)
(limited to 'src')
diff --git a/src/arch/i386/boot/acpigen.c b/src/arch/i386/boot/acpigen.c
index f1132f610b..5c8bd56548 100644
--- a/src/arch/i386/boot/acpigen.c
+++ b/src/arch/i386/boot/acpigen.c
@@ -260,3 +260,21 @@ int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat
acpigen_patch_len(len - 1);
return len;
}
+
+int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype)
+{
+ int len, lenh, lenp;
+ lenh = acpigen_write_name("_PSD");
+ lenp = acpigen_write_package(1);
+ len = acpigen_write_package(5);
+ len += acpigen_write_byte(5); // 5 values
+ len += acpigen_write_byte(0); // revision 0
+ len += acpigen_write_dword(domain);
+ len += acpigen_write_dword(coordtype);
+ len += acpigen_write_dword(numprocs);
+ acpigen_patch_len(len-1);
+ len += lenp;
+ acpigen_patch_len(len-1);
+ return len + lenh;
+}
+
diff --git a/src/arch/i386/include/arch/acpigen.h b/src/arch/i386/include/arch/acpigen.h
index 074f6415bb..0abeae5050 100644
--- a/src/arch/i386/include/arch/acpigen.h
+++ b/src/arch/i386/include/arch/acpigen.h
@@ -40,5 +40,7 @@ int acpigen_write_PPC(u8 nr);
int acpigen_write_empty_PCT(void);
int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat,
u32 control, u32 status);
+typedef enum { SW_ALL=0xfc, SW_ANY=0xfd, HW_ALL=0xfe } PSD_coord;
+int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype);
int acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len);
#endif
--
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