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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
This commit is contained in:
Patrick Georgi 2009-04-21 20:34:36 +00:00
parent 2d3e712d56
commit df444bf68a
2 changed files with 20 additions and 0 deletions
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18
src/arch/i386/boot/acpigen.c
View File

@ -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;
}

2
src/arch/i386/include/arch/acpigen.h
View File

@ -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