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Commit 781749a4 authored by Takashi Yamamoto's avatar Takashi Yamamoto Committed by Paul Mackerras
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[POWERPC] PS3: Add logical performance monitor driver support 



Add PS3 logical performance monitor (lpm) device driver.

The PS3's LV1 hypervisor provides a Logical Performance Monitor that
abstracts the Cell processor's performance monitor features for use
by guest operating systems.

Signed-off-by: default avatarTakashi Yamamoto <TakashiA.Yamamoto@jp.sony.com>
Signed-off-by: default avatarGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent ed757002

arch/powerpc/platforms/ps3/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -138,4 +138,17 @@ config PS3_FLASH 
	  be disabled on the kernel command line using "ps3flash=off", to

	  not allocate this fixed buffer.



config PS3_LPM

	tristate "PS3 Logical Performance Monitor support"

	depends on PPC_PS3

	help

	  Include support for the PS3 Logical Performance Monitor.



	  This support is required to use the logical performance monitor

	  of the PS3's LV1 hypervisor.



	  If you intend to use the advanced performance monitoring and

	  profiling support of the Cell processor with programs like

	  oprofile and perfmon2, then say Y or M, otherwise say N.



endmenu

drivers/ps3/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -4,3 +4,4 @@ ps3av_mod-objs += ps3av.o ps3av_cmd.o 
obj-$(CONFIG_PPC_PS3) += sys-manager-core.o

obj-$(CONFIG_PS3_SYS_MANAGER) += ps3-sys-manager.o

obj-$(CONFIG_PS3_STORAGE) += ps3stor_lib.o

obj-$(CONFIG_PS3_LPM) += ps3-lpm.o

drivers/ps3/ps3-lpm.c

0 → 100644
+1248 −0

File added.

Preview size limit exceeded, changes collapsed.

include/asm-powerpc/ps3.h

+62 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
#include <linux/init.h>

#include <linux/types.h>

#include <linux/device.h>

#include "cell-pmu.h"



union ps3_firmware_version {

	u64 raw;
@@ -446,5 +447,66 @@ struct ps3_prealloc { 
extern struct ps3_prealloc ps3fb_videomemory;

extern struct ps3_prealloc ps3flash_bounce_buffer;



/* logical performance monitor */



/**

 * enum ps3_lpm_rights - Rigths granted by the system policy module.

 *

 * @PS3_LPM_RIGHTS_USE_LPM: The right to use the lpm.

 * @PS3_LPM_RIGHTS_USE_TB: The right to use the internal trace buffer.

 */



enum ps3_lpm_rights {

	PS3_LPM_RIGHTS_USE_LPM = 0x001,

	PS3_LPM_RIGHTS_USE_TB = 0x100,

};



/**

 * enum ps3_lpm_tb_type - Type of trace buffer lv1 should use.

 *

 * @PS3_LPM_TB_TYPE_NONE: Do not use a trace buffer.

 * @PS3_LPM_RIGHTS_USE_TB: Use the lv1 internal trace buffer.  Must have

 *  rights @PS3_LPM_RIGHTS_USE_TB.

 */



enum ps3_lpm_tb_type {

	PS3_LPM_TB_TYPE_NONE = 0,

	PS3_LPM_TB_TYPE_INTERNAL = 1,

};



int ps3_lpm_open(enum ps3_lpm_tb_type tb_type, void *tb_cache,

	u64 tb_cache_size);

int ps3_lpm_close(void);

int ps3_lpm_copy_tb(unsigned long offset, void *buf, unsigned long count,

	unsigned long *bytes_copied);

int ps3_lpm_copy_tb_to_user(unsigned long offset, void __user *buf,

	unsigned long count, unsigned long *bytes_copied);

void ps3_set_bookmark(u64 bookmark);

void ps3_set_pm_bookmark(u64 tag, u64 incident, u64 th_id);

int ps3_set_signal(u64 rtas_signal_group, u8 signal_bit, u16 sub_unit,

	u8 bus_word);



u32 ps3_read_phys_ctr(u32 cpu, u32 phys_ctr);

void ps3_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val);

u32 ps3_read_ctr(u32 cpu, u32 ctr);

void ps3_write_ctr(u32 cpu, u32 ctr, u32 val);



u32 ps3_read_pm07_control(u32 cpu, u32 ctr);

void ps3_write_pm07_control(u32 cpu, u32 ctr, u32 val);

u32 ps3_read_pm(u32 cpu, enum pm_reg_name reg);

void ps3_write_pm(u32 cpu, enum pm_reg_name reg, u32 val);



u32 ps3_get_ctr_size(u32 cpu, u32 phys_ctr);

void ps3_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size);



void ps3_enable_pm(u32 cpu);

void ps3_disable_pm(u32 cpu);

void ps3_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask);

void ps3_disable_pm_interrupts(u32 cpu);



u32 ps3_get_and_clear_pm_interrupts(u32 cpu);

void ps3_sync_irq(int node);

u32 ps3_get_hw_thread_id(int cpu);

u64 ps3_get_spe_id(void *arg);



#endif