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Commit 238b706d authored by H. Peter Anvin's avatar H. Peter Anvin
Browse files

[x86 setup] Make struct ist_info cross-architecture, and use in setup code 



Make "struct ist_info" valid on both i386 and x86-64, and use the
structure by name in the setup code.  Additionally, "Intel SpeedStep
IST" is redundant, refer to it as IST consistently.

Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent f77b1ab3

arch/i386/boot/main.c

+8 −8
Original line number Diff line number Diff line
@@ -73,15 +73,15 @@ static void keyboard_set_repeat(void) 
}



/*

 * Get Intel SpeedStep IST information.

 * Get Intel SpeedStep (IST) information.

 */

static void query_speedstep_ist(void)

static void query_ist(void)

{

	asm("int $0x15"

	    : "=a" (boot_params.speedstep_info[0]),

	      "=b" (boot_params.speedstep_info[1]),

	      "=c" (boot_params.speedstep_info[2]),

	      "=d" (boot_params.speedstep_info[3])

	    : "=a" (boot_params.ist_info.signature),

	      "=b" (boot_params.ist_info.command),

	      "=c" (boot_params.ist_info.event),

	      "=d" (boot_params.ist_info.perf_level)

	    : "a" (0x0000e980),	 /* IST Support */

	      "d" (0x47534943)); /* Request value */

}
@@ -144,8 +144,8 @@ void main(void) 
	query_voyager();

#endif



	/* Query SpeedStep IST information */

	query_speedstep_ist();

	/* Query Intel SpeedStep (IST) information */

	query_ist();



	/* Query APM information */

#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE)

include/asm-i386/bootparam.h

+3 −2
Original line number Diff line number Diff line
@@ -4,8 +4,9 @@ 
#include <linux/types.h>

#include <linux/screen_info.h>

#include <linux/apm_bios.h>

#include <asm/e820.h>

#include <linux/edd.h>

#include <asm/e820.h>

#include <asm/ist.h>

#include <video/edid.h>



struct setup_header {
@@ -59,7 +60,7 @@ struct boot_params { 
	struct screen_info screen_info;			/* 0x000 */

	struct apm_bios_info apm_bios_info;		/* 0x040 */

	u8  _pad2[12];					/* 0x054 */

	u32 speedstep_info[4];				/* 0x060 */

	struct ist_info ist_info;			/* 0x060 */

	u8  _pad3[16];					/* 0x070 */

	u8  hd0_info[16];	/* obsolete! */		/* 0x080 */

	u8  hd1_info[16];	/* obsolete! */		/* 0x090 */

include/asm-i386/ist.h

+6 −4
Original line number Diff line number Diff line
@@ -19,11 +19,13 @@ 


#ifdef __KERNEL__



#include <linux/types.h>



struct ist_info {

	unsigned long	signature;

	unsigned long	command;

	unsigned long	event;

	unsigned long	perf_level;

	u32 signature;

	u32 command;

	u32 event;

	u32 perf_level;

};



extern struct ist_info ist_info;

include/asm-x86_64/ist.h

0 → 100644
+1 −0
Original line number Diff line number Diff line 
#include <asm-i386/ist.h>