[patch 3/3] PS3: Add logical performance monitor driver support
Geoff Levand
geoffrey.levand at am.sony.com
Sat Jan 5 14:30:05 EST 2008
From: Takashi Yamamoto <Takashi02_Yamamoto at hq.scei.sony.co.jp>
Add PS3 logical performance monitor (lpm) device driver.
The PS3's LV1 hypervisor provides a Logical Performance Monitor that
abstarcts the Cell processor's performance monitor features for use
by guest operating systems.
Signed-off-by: Takashi Yamamoto <Takashi02_Yamamoto at hq.scei.sony.co.jp>
Signed-off-by: Geoff Levand <geoffrey.levand at am.sony.com>
---
arch/powerpc/platforms/ps3/Kconfig | 14
drivers/ps3/Makefile | 1
drivers/ps3/ps3-lpm.c | 1171 +++++++++++++++++++++++++++++++++++++
include/asm-powerpc/ps3.h | 37 +
4 files changed, 1223 insertions(+)
create mode 100644 arch/powerpc/platforms/ps3/ps3-lpm.c
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -138,4 +138,18 @@ 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
+ default n
+ 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 perfmon, then say Y or M, otherwise say N.
+
endmenu
--- a/drivers/ps3/Makefile
+++ b/drivers/ps3/Makefile
@@ -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
--- /dev/null
+++ b/drivers/ps3/ps3-lpm.c
@@ -0,0 +1,1171 @@
+/*
+ * PS3 Logical Performance Monitor.
+ *
+ * Copyright (C) 2007 Sony Computer Entertainment Inc.
+ * Copyright 2007 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/uaccess.h>
+#include <asm/ps3.h>
+#include <asm/lv1call.h>
+#include <asm/cell-pmu.h>
+
+#define PS3_SIZE_OF_PM_INTERNAL_TRACE_BUFFER 0x4000
+#define PS3_SIZE_OF_PM_DEFAULT_TRACE_BUFFER_CACHE 0x4000
+
+/**
+ * struct ps3_lpm_priv - private lpm device data.
+ *
+ * @mutex: Open/close mutex.
+ * @rights: The lpm rigths granted by the system policy module.
+ * @pu_id: The lv1 id of the BE prosessor for this lpm instance.
+ * @lpm_id: The lv1 id of this lpm instance.
+ * @outlet_id: The outlet created by lv1 for this lpm instance.
+ * @constructed: A flag indicating the lpm driver has been opened -- can we just use (lpm_id == ???)
+ * @tb_size: The lv1 trace buffer size
+ * @tb_cache: Trace buffer cache
+ * @tb_cache_internal: A flag indicating the trace buffer cache was allocated
+ * by the driver.
+ * @tb_cache: Trace buffer cache
+ * @sizeof_traced_data: Traced data size
+ * @sbd: the struct ps3_system_bus_device attached to this driver
+ */
+
+struct ps3_lpm_priv {
+ struct mutex mutex;
+ u64 rights;
+ u64 pu_id;
+ u64 lpm_id;
+ u64 outlet_id;
+ int constructed;
+ u64 tb_size;
+ void *tb_cache;
+ u64 tb_cache_size;
+ int tb_cache_internal;
+ u64 sizeof_traced_data;
+ u64 sizeof_total_copied_data;
+ u64 shadow_pm_control;
+ u64 shadow_pm_start_stop;
+ u64 shadow_pm_interval;
+ u64 shadow_group_control;
+ u64 shadow_debug_bus_control;
+ struct ps3_system_bus_device *sbd;
+};
+
+/**
+ * lpm_priv - Static instance of the lpm data.
+ *
+ * Since the exported routines don't support the notion of a device
+ * instance we need to hold the instance in this static variable
+ * and only allow at most one instance to be created.
+ */
+
+static struct ps3_lpm_priv *lpm_priv;
+
+static struct device *sbd_core(void)
+{
+ BUG_ON(!lpm_priv || !lpm_priv->sbd);
+ return &lpm_priv->sbd->core;
+}
+
+/**
+ * use_start_stop_bookmark - Enable the PPU bookmark trace.
+ *
+ * And it enables PPU bookmark triggers ONLY if the other triggers are not set.
+ * The start/stop bookmarks are inserted at ps3_enable_pm() and ps3_disable_pm()
+ * to start/stop LPM.
+ *
+ * Used to get good quality of the performance counter.
+ */
+
+enum {use_start_stop_bookmark = 1,};
+
+/* BOOKMARK tag macros */
+#define PS3_PM_BOOKMARK_START 0x8000000000000000ULL
+#define PS3_PM_BOOKMARK_STOP 0x4000000000000000ULL
+#define PS3_PM_BOOKMARK_TAG_KERNEL 0x1000000000000000ULL
+#define PS3_PM_BOOKMARK_TAG_USER 0x3000000000000000ULL
+#define PS3_PM_BOOKMARK_TAG_MASK_HI 0xF000000000000000ULL
+#define PS3_PM_BOOKMARK_TAG_MASK_LO 0x0F00000000000000ULL
+
+/* CBE PM CONTROL register macros */
+#define PS3_PM_CONTROL_PPU_TH0_BOOKMARK 0x00001000
+#define PS3_PM_CONTROL_PPU_TH1_BOOKMARK 0x00000800
+#define PS3_PM_CONTROL_PPU_COUNT_MODE_MASK 0x000C0000
+#define PS3_PM_CONTROL_PPU_COUNT_MODE_PROBLEM 0x00080000
+#define PS3_WRITE_PM_MASK 0xFFFFFFFFFFFFFFFFULL
+
+/* CBE PM START STOP register macros */
+#define PS3_PM_START_STOP_PPU_TH0_BOOKMARK_START 0x02000000
+#define PS3_PM_START_STOP_PPU_TH1_BOOKMARK_START 0x01000000
+#define PS3_PM_START_STOP_PPU_TH0_BOOKMARK_STOP 0x00020000
+#define PS3_PM_START_STOP_PPU_TH1_BOOKMARK_STOP 0x00010000
+#define PS3_PM_START_STOP_START_MASK 0xFF000000
+#define PS3_PM_START_STOP_STOP_MASK 0x00FF0000
+
+/* CBE PM COUNTER register macres */
+#define PS3_PM_COUNTER_MASK_HI 0xFFFFFFFF00000000ULL
+#define PS3_PM_COUNTER_MASK_LO 0x00000000FFFFFFFFULL
+
+/* BASE SIGNAL GROUP NUMBER macros */
+#define PM_ISLAND2_BASE_SIGNAL_GROUP_NUMBER 0
+#define PM_ISLAND2_SIGNAL_GROUP_NUMBER1 6
+#define PM_ISLAND2_SIGNAL_GROUP_NUMBER2 7
+#define PM_ISLAND3_BASE_SIGNAL_GROUP_NUMBER 7
+#define PM_ISLAND4_BASE_SIGNAL_GROUP_NUMBER 15
+#define PM_SPU_TRIGGER_SIGNAL_GROUP_NUMBER 17
+#define PM_SPU_EVENT_SIGNAL_GROUP_NUMBER 18
+#define PM_ISLAND5_BASE_SIGNAL_GROUP_NUMBER 18
+#define PM_ISLAND6_BASE_SIGNAL_GROUP_NUMBER 24
+#define PM_ISLAND7_BASE_SIGNAL_GROUP_NUMBER 49
+#define PM_ISLAND8_BASE_SIGNAL_GROUP_NUMBER 52
+#define PM_SIG_GROUP_SPU 41
+#define PM_SIG_GROUP_SPU_TRIGGER 42
+#define PM_SIG_GROUP_SPU_EVENT 43
+#define PM_SIG_GROUP_MFC_MAX 60
+
+/* shadow register macros */
+#define PS3_SHADOW_REG_INIT_VALUE 0xFFFFFFFF00000000ULL
+
+/* bookmark spr address */
+#define BOOKMARK_SPR_ADDR 1020
+
+void ps3_set_bookmark(u64 bookmark)
+{
+ /*
+ * As per PPE book IV, to avoid bookmark lost there
+ * must not be a traced branch within 10 cycles of
+ * setting the bookmark spr.
+ */
+
+ asm volatile("or 29, 29, 29;"); /* db10cyc */
+ mtspr(BOOKMARK_SPR_ADDR, bookmark);
+ asm volatile("or 29, 29, 29;"); /* db10cyc */
+}
+EXPORT_SYMBOL_GPL(ps3_set_bookmark);
+
+void ps3_set_pm_bookmark(u64 tag, u64 incident, u64 th_id)
+{
+ u64 bookmark;
+
+ bookmark = (get_tb() & 0x00000000FFFFFFFFULL) |
+ PS3_PM_BOOKMARK_TAG_KERNEL;
+ bookmark = ((tag << 56) & PS3_PM_BOOKMARK_TAG_MASK_LO) |
+ (incident << 48) | (th_id << 32) | bookmark;
+ ps3_set_bookmark(bookmark);
+}
+EXPORT_SYMBOL_GPL(ps3_set_pm_bookmark);
+
+/**
+ * ps3_read_phys_ctr - Read physical counter registers.
+ *
+ * Each physical counter can act as one 32 bit counter or as two 16 bit
+ * counters.
+ */
+
+u32 ps3_read_phys_ctr(u32 cpu, u32 phys_ctr)
+{
+ int result;
+ u64 counter0415;
+ u64 counter2637;
+
+ if (phys_ctr >= NR_PHYS_CTRS) {
+ dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__,
+ __LINE__, phys_ctr);
+ return 0;
+ }
+
+ result = lv1_set_lpm_counter(lpm_priv->lpm_id, 0, 0, 0, 0, &counter0415,
+ &counter2637);
+ if (result) {
+ dev_err(sbd_core(), "%s:%u: lv1_set_lpm_counter failed: "
+ "phys_ctr %u, %s\n", __func__, __LINE__, phys_ctr,
+ ps3_result(result));
+ return 0;
+ }
+
+ switch (phys_ctr) {
+ case 0:
+ return counter0415 >> 32;
+ case 1:
+ return counter0415 & PS3_PM_COUNTER_MASK_LO;
+ case 2:
+ return counter2637 >> 32;
+ case 3:
+ return counter2637 & PS3_PM_COUNTER_MASK_LO;
+ default:
+ BUG();
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ps3_read_phys_ctr);
+
+/**
+ * ps3_write_phys_ctr - Write physical counter registers.
+ *
+ * Each physical counter can act as one 32 bit counter or as two 16 bit
+ * counters.
+ */
+
+void ps3_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val)
+{
+ u64 counter0415;
+ u64 counter0415_mask;
+ u64 counter2637;
+ u64 counter2637_mask;
+ int result;
+
+ if (phys_ctr >= NR_PHYS_CTRS) {
+ dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__,
+ __LINE__, phys_ctr);
+ return;
+ }
+
+ switch (phys_ctr) {
+ case 0:
+ counter0415 = (u64)val << 32;
+ counter0415_mask = PS3_PM_COUNTER_MASK_HI;
+ counter2637 = 0x0;
+ counter2637_mask = 0x0;
+ break;
+ case 1:
+ counter0415 = (u64)val;
+ counter0415_mask = PS3_PM_COUNTER_MASK_LO;
+ counter2637 = 0x0;
+ counter2637_mask = 0x0;
+ break;
+ case 2:
+ counter0415 = 0x0;
+ counter0415_mask = 0x0;
+ counter2637 = (u64)val << 32;
+ counter2637_mask = PS3_PM_COUNTER_MASK_HI;
+ break;
+ case 3:
+ counter0415 = 0x0;
+ counter0415_mask = 0x0;
+ counter2637 = (u64)val;
+ counter2637_mask = PS3_PM_COUNTER_MASK_LO;
+ break;
+ default:
+ BUG();
+ }
+
+ result = lv1_set_lpm_counter(lpm_priv->lpm_id,
+ counter0415, counter0415_mask,
+ counter2637, counter2637_mask,
+ &counter0415, &counter2637);
+ if (result)
+ dev_err(sbd_core(), "%s:%u: lv1_set_lpm_counter failed: "
+ "phys_ctr %u, val %u, %s\n", __func__, __LINE__,
+ phys_ctr, val, ps3_result(result));
+}
+EXPORT_SYMBOL_GPL(ps3_write_phys_ctr);
+
+/**
+ * ps3_read_ctr - Read counter.
+ *
+ * Read 16 or 32 bits depending on the current size of the counter.
+ * Counters 4, 5, 6 & 7 are always 16 bit.
+ */
+
+u32 ps3_read_ctr(u32 cpu, u32 ctr)
+{
+ u32 val;
+ u32 phys_ctr = ctr & (NR_PHYS_CTRS - 1);
+
+ val = ps3_read_phys_ctr(cpu, phys_ctr);
+
+ if (ps3_get_ctr_size(cpu, phys_ctr) == 16)
+ val = (ctr < NR_PHYS_CTRS) ? (val >> 16) : (val & 0xffff);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(ps3_read_ctr);
+
+/**
+ * ps3_write_ctr - Write counter.
+ *
+ * Write 16 or 32 bits depending on the current size of the counter.
+ * Counters 4, 5, 6 & 7 are always 16 bit.
+ */
+
+void ps3_write_ctr(u32 cpu, u32 ctr, u32 val)
+{
+ u32 phys_ctr;
+ u32 phys_val;
+
+ phys_ctr = ctr & (NR_PHYS_CTRS - 1);
+
+ if (ps3_get_ctr_size(cpu, phys_ctr) == 16) {
+ phys_val = ps3_read_phys_ctr(cpu, phys_ctr);
+
+ if (ctr < NR_PHYS_CTRS)
+ val = (val << 16) | (phys_val & 0xffff);
+ else
+ val = (val & 0xffff) | (phys_val & 0xffff0000);
+ }
+
+ ps3_write_phys_ctr(cpu, phys_ctr, val);
+}
+EXPORT_SYMBOL_GPL(ps3_write_ctr);
+
+/**
+ * ps3_read_pm07_control - Read counter control registers.
+ *
+ * Each logical counter has a corresponding control register.
+ */
+
+u32 ps3_read_pm07_control(u32 cpu, u32 ctr)
+{
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ps3_read_pm07_control);
+
+/**
+ * ps3_write_pm07_control - Write counter control registers.
+ *
+ * Each logical counter has a corresponding control register.
+ */
+
+void ps3_write_pm07_control(u32 cpu, u32 ctr, u32 val)
+{
+ int result;
+ static const u64 mask = 0xFFFFFFFFFFFFFFFFULL;
+ u64 old_value;
+
+ if (ctr >= NR_CTRS) {
+ dev_dbg(sbd_core(), "%s:%u: ctr too big: %u\n", __func__,
+ __LINE__, ctr);
+ return;
+ }
+
+ result = lv1_set_lpm_counter_control(lpm_priv->lpm_id, ctr, val, mask,
+ &old_value);
+ if (result)
+ dev_err(sbd_core(), "%s:%u: lv1_set_lpm_counter_control "
+ "failed: ctr %u, %s\n", __func__, __LINE__, ctr,
+ ps3_result(result));
+}
+EXPORT_SYMBOL_GPL(ps3_write_pm07_control);
+
+/**
+ * ps3_read_pm - Read Other LPM control registers.
+ */
+
+u32 ps3_read_pm(u32 cpu, enum pm_reg_name reg)
+{
+ switch (reg) {
+ case pm_control:
+ return lpm_priv->shadow_pm_control;
+ case trace_address:
+ return CBE_PM_TRACE_BUF_EMPTY;
+ case pm_start_stop:
+ return lpm_priv->shadow_pm_start_stop;
+ default:
+ dev_dbg(sbd_core(), "%s:%u: unknown reg: %d\n", __func__,
+ __LINE__, reg);
+ BUG();
+ break;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ps3_read_pm);
+
+/**
+ * ps3_write_pm - Write Other LPM control registers.
+ */
+
+void ps3_write_pm(u32 cpu, enum pm_reg_name reg, u32 val)
+{
+ int result = 0;
+ u64 dummy;
+
+ switch (reg) {
+ case group_control:
+ if (val != lpm_priv->shadow_group_control)
+ result = lv1_set_lpm_group_control(lpm_priv->lpm_id,
+ val,
+ PS3_WRITE_PM_MASK,
+ &dummy);
+ lpm_priv->shadow_group_control = val;
+ break;
+ case debug_bus_control:
+ if (val != lpm_priv->shadow_debug_bus_control)
+ result = lv1_set_lpm_debug_bus_control(lpm_priv->lpm_id,
+ val,
+ PS3_WRITE_PM_MASK,
+ &dummy);
+ lpm_priv->shadow_debug_bus_control = val;
+ break;
+ case pm_control:
+ if (use_start_stop_bookmark)
+ val |= (PS3_PM_CONTROL_PPU_TH0_BOOKMARK |
+ PS3_PM_CONTROL_PPU_TH1_BOOKMARK);
+ if (val != lpm_priv->shadow_pm_control)
+ result = lv1_set_lpm_general_control(lpm_priv->lpm_id,
+ val,
+ PS3_WRITE_PM_MASK,
+ 0, 0, &dummy,
+ &dummy);
+ lpm_priv->shadow_pm_control = val;
+ break;
+ case pm_interval:
+ if (val != lpm_priv->shadow_pm_interval)
+ result = lv1_set_lpm_interval(lpm_priv->lpm_id, val,
+ PS3_WRITE_PM_MASK, &dummy);
+ lpm_priv->shadow_pm_interval = val;
+ break;
+ case pm_start_stop:
+ if (val != lpm_priv->shadow_pm_start_stop)
+ result = lv1_set_lpm_trigger_control(lpm_priv->lpm_id,
+ val,
+ PS3_WRITE_PM_MASK,
+ &dummy);
+ lpm_priv->shadow_pm_start_stop = val;
+ break;
+ default:
+ dev_dbg(sbd_core(), "%s:%u: unknown reg: %d\n", __func__,
+ __LINE__, reg);
+ BUG();
+ break;
+ }
+
+ if (result)
+ dev_err(sbd_core(), "%s:%u: lv1 set_control failed: "
+ "reg %u, %s\n", __func__, __LINE__, reg,
+ ps3_result(result));
+}
+EXPORT_SYMBOL_GPL(ps3_write_pm);
+
+/**
+ * ps3_get_ctr_size - Get the size of a physical counter.
+ *
+ * Returns either 16 or 32.
+ */
+
+u32 ps3_get_ctr_size(u32 cpu, u32 phys_ctr)
+{
+ u32 pm_ctrl;
+
+ if (phys_ctr >= NR_PHYS_CTRS) {
+ dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__,
+ __LINE__, phys_ctr);
+ return 0;
+ }
+
+ pm_ctrl = ps3_read_pm(cpu, pm_control);
+ return (pm_ctrl & CBE_PM_16BIT_CTR(phys_ctr)) ? 16 : 32;
+}
+EXPORT_SYMBOL_GPL(ps3_get_ctr_size);
+
+/**
+ * ps3_set_ctr_size - Set the size of a physical counter to 16 or 32 bits.
+ */
+
+void ps3_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size)
+{
+ u32 pm_ctrl;
+
+ if (phys_ctr >= NR_PHYS_CTRS) {
+ dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__,
+ __LINE__, phys_ctr);
+ return;
+ }
+
+ pm_ctrl = ps3_read_pm(cpu, pm_control);
+
+ switch (ctr_size) {
+ case 16:
+ pm_ctrl |= CBE_PM_16BIT_CTR(phys_ctr);
+ ps3_write_pm(cpu, pm_control, pm_ctrl);
+ break;
+
+ case 32:
+ pm_ctrl &= ~CBE_PM_16BIT_CTR(phys_ctr);
+ ps3_write_pm(cpu, pm_control, pm_ctrl);
+ break;
+ default:
+ BUG();
+ }
+}
+EXPORT_SYMBOL_GPL(ps3_set_ctr_size);
+
+static u64 pm_translate_signal_group_number_on_island2(u64 subgroup)
+{
+
+ if (subgroup == 2)
+ subgroup = 3;
+
+ if (subgroup <= 6)
+ return PM_ISLAND2_BASE_SIGNAL_GROUP_NUMBER + subgroup;
+ else if (subgroup == 7)
+ return PM_ISLAND2_SIGNAL_GROUP_NUMBER1;
+ else
+ return PM_ISLAND2_SIGNAL_GROUP_NUMBER2;
+}
+
+static u64 pm_translate_signal_group_number_on_island3(u64 subgroup)
+{
+
+ switch (subgroup) {
+ case 2:
+ case 3:
+ case 4:
+ subgroup += 2;
+ break;
+ case 5:
+ subgroup = 8;
+ break;
+ default:
+ break;
+ }
+ return PM_ISLAND3_BASE_SIGNAL_GROUP_NUMBER + subgroup;
+}
+
+static u64 pm_translate_signal_group_number_on_island4(u64 subgroup)
+{
+ return PM_ISLAND4_BASE_SIGNAL_GROUP_NUMBER + subgroup;
+}
+
+static u64 pm_translate_signal_group_number_on_island5(u64 subgroup)
+{
+
+ switch (subgroup) {
+ case 3:
+ subgroup = 4;
+ break;
+ case 4:
+ subgroup = 6;
+ break;
+ default:
+ break;
+ }
+ return PM_ISLAND5_BASE_SIGNAL_GROUP_NUMBER + subgroup;
+}
+
+static u64 pm_translate_signal_group_number_on_island6(u64 subgroup,
+ u64 subsubgroup)
+{
+ switch (subgroup) {
+ case 3:
+ case 4:
+ case 5:
+ subgroup += 1;
+ break;
+ default:
+ break;
+ }
+
+ switch (subsubgroup) {
+ case 4:
+ case 5:
+ case 6:
+ subsubgroup += 2;
+ break;
+ case 7:
+ case 8:
+ case 9:
+ case 10:
+ subsubgroup += 4;
+ break;
+ case 11:
+ case 12:
+ case 13:
+ subsubgroup += 5;
+ break;
+ default:
+ break;
+ }
+
+ if (subgroup <= 5)
+ return (PM_ISLAND6_BASE_SIGNAL_GROUP_NUMBER + subgroup);
+ else
+ return (PM_ISLAND6_BASE_SIGNAL_GROUP_NUMBER + subgroup
+ + subsubgroup - 1);
+}
+
+static u64 pm_translate_signal_group_number_on_island7(u64 subgroup)
+{
+ return PM_ISLAND7_BASE_SIGNAL_GROUP_NUMBER + subgroup;
+}
+
+static u64 pm_translate_signal_group_number_on_island8(u64 subgroup)
+{
+ return PM_ISLAND8_BASE_SIGNAL_GROUP_NUMBER + subgroup;
+}
+
+static u64 pm_signal_group_to_ps3_lv1_signal_group(u64 group)
+{
+ u64 island;
+ u64 subgroup;
+ u64 subsubgroup;
+
+ subgroup = 0;
+ subsubgroup = 0;
+ island = 0;
+ if (group < 1000) {
+ if (group < 100) {
+ if (20 <= group && group < 30) {
+ island = 2;
+ subgroup = group - 20;
+ } else if (30 <= group && group < 40) {
+ island = 3;
+ subgroup = group - 30;
+ } else if (40 <= group && group < 50) {
+ island = 4;
+ subgroup = group - 40;
+ } else if (50 <= group && group < 60) {
+ island = 5;
+ subgroup = group - 50;
+ } else if (60 <= group && group < 70) {
+ island = 6;
+ subgroup = group - 60;
+ } else if (70 <= group && group < 80) {
+ island = 7;
+ subgroup = group - 70;
+ } else if (80 <= group && group < 90) {
+ island = 8;
+ subgroup = group - 80;
+ }
+ } else if (200 <= group && group < 300) {
+ island = 2;
+ subgroup = group - 200;
+ } else if (600 <= group && group < 700) {
+ island = 6;
+ subgroup = 5;
+ subsubgroup = group - 650;
+ }
+ } else if (6000 <= group && group < 7000) {
+ island = 6;
+ subgroup = 5;
+ subsubgroup = group - 6500;
+ }
+
+ switch (island) {
+ case 2:
+ return pm_translate_signal_group_number_on_island2(subgroup);
+ case 3:
+ return pm_translate_signal_group_number_on_island3(subgroup);
+ case 4:
+ return pm_translate_signal_group_number_on_island4(subgroup);
+ case 5:
+ return pm_translate_signal_group_number_on_island5(subgroup);
+ case 6:
+ return pm_translate_signal_group_number_on_island6(subgroup,
+ subsubgroup);
+ case 7:
+ return pm_translate_signal_group_number_on_island7(subgroup);
+ case 8:
+ return pm_translate_signal_group_number_on_island8(subgroup);
+ default:
+ dev_dbg(sbd_core(), "%s:%u: island not found: %lu\n", __func__,
+ __LINE__, group);
+ BUG();
+ break;
+ }
+ return 0;
+}
+
+static u64 pm_bus_word_to_ps3_lv1_bus_word(u8 word)
+{
+
+ switch (word) {
+ case 1:
+ return 0xF000;
+ case 2:
+ return 0x0F00;
+ case 4:
+ return 0x00F0;
+ case 8:
+ default:
+ return 0x000F;
+ }
+}
+
+static int __ps3_set_signal(u64 lv1_signal_group, u64 bus_select,
+ u64 signal_select, u64 attr1, u64 attr2, u64 attr3)
+{
+ int ret;
+
+ ret = lv1_set_lpm_signal(lpm_priv->lpm_id, lv1_signal_group, bus_select,
+ signal_select, attr1, attr2, attr3);
+ if (ret)
+ dev_err(sbd_core(),
+ "%s:%u: error:%d 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx\n",
+ __func__, __LINE__, ret, lv1_signal_group, bus_select,
+ signal_select, attr1, attr2, attr3);
+
+ return ret;
+}
+
+int ps3_set_signal(u64 signal_group, u8 signal_bit, u16 sub_unit,
+ u8 bus_word)
+{
+ int ret;
+ u64 lv1_signal_group;
+ u64 bus_select;
+ u64 signal_select;
+ u64 attr1, attr2, attr3;
+
+ if (signal_group == 0)
+ return __ps3_set_signal(0, 0, 0, 0, 0, 0);
+
+ lv1_signal_group =
+ pm_signal_group_to_ps3_lv1_signal_group(signal_group);
+ bus_select = pm_bus_word_to_ps3_lv1_bus_word(bus_word);
+
+ switch (signal_group) {
+ case PM_SIG_GROUP_SPU_TRIGGER:
+ signal_select = 1;
+ signal_select = signal_select << (63 - signal_bit);
+ break;
+ case PM_SIG_GROUP_SPU_EVENT:
+ signal_select = 1;
+ signal_select = (signal_select << (63 - signal_bit)) | 0x3;
+ break;
+ default:
+ signal_select = 0;
+ break;
+ }
+
+ /*
+ * 0: physical object.
+ * 1: logical object.
+ * This parameter is only used for the PPE and SPE signals.
+ */
+ attr1 = 1;
+
+ /*
+ * This parameter is used to specify the target physical/logical
+ * PPE/SPE object.
+ */
+ if (PM_SIG_GROUP_SPU <= signal_group &&
+ signal_group < PM_SIG_GROUP_MFC_MAX)
+ attr2 = sub_unit;
+ else
+ attr2 = lpm_priv->pu_id;;
+
+ /*
+ * This parameter is only used for setting the SPE signal.
+ */
+ attr3 = 0;
+
+ ret = __ps3_set_signal(lv1_signal_group, bus_select, signal_select,
+ attr1, attr2, attr3);
+ if (ret)
+ dev_err(sbd_core(), "%s:%u: __ps3_set_signal failed: %d\n",
+ __func__, __LINE__, ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ps3_set_signal);
+
+inline u32 ps3_get_hw_thread_id(int cpu)
+{
+ return cpu;
+}
+EXPORT_SYMBOL_GPL(ps3_get_hw_thread_id);
+
+/**
+ * ps3_enable_pm - Enable the entire performance monitoring unit.
+ *
+ * When we enable the LPM, all pending writes to counters get committed.
+ */
+
+void ps3_enable_pm(u32 cpu)
+{
+ int result;
+ u64 tmp;
+ int insert_bookmark = 0;
+
+ if (use_start_stop_bookmark) {
+ if (!(lpm_priv->shadow_pm_start_stop &
+ (PS3_PM_START_STOP_START_MASK
+ | PS3_PM_START_STOP_STOP_MASK))) {
+ result = lv1_set_lpm_trigger_control(lpm_priv->lpm_id,
+ (PS3_PM_START_STOP_PPU_TH0_BOOKMARK_START |
+ PS3_PM_START_STOP_PPU_TH1_BOOKMARK_START |
+ PS3_PM_START_STOP_PPU_TH0_BOOKMARK_STOP |
+ PS3_PM_START_STOP_PPU_TH1_BOOKMARK_STOP),
+ 0xFFFFFFFFFFFFFFFFULL, &tmp);
+
+ if (result)
+ dev_err(sbd_core(), "%s:%u: "
+ "lv1_set_lpm_trigger_control failed: "
+ "%s\n", __func__, __LINE__,
+ ps3_result(result));
+
+ insert_bookmark = !result;
+ }
+ }
+
+ result = lv1_start_lpm(lpm_priv->lpm_id);
+
+ if (result)
+ dev_err(sbd_core(), "%s:%u: lv1_start_lpm failed: %s\n",
+ __func__, __LINE__, ps3_result(result));
+
+ if (use_start_stop_bookmark && result && insert_bookmark)
+ ps3_set_bookmark(get_tb() | PS3_PM_BOOKMARK_START);
+}
+EXPORT_SYMBOL_GPL(ps3_enable_pm);
+
+/**
+ * ps3_disable_pm - Disable the entire performance monitoring unit.
+ */
+
+void ps3_disable_pm(u32 cpu)
+{
+ int result;
+ u64 param = 0;
+
+ ps3_set_bookmark(get_tb() | PS3_PM_BOOKMARK_STOP);
+
+ result = lv1_stop_lpm(lpm_priv->lpm_id, ¶m);
+
+ if (result) {
+ dev_err(sbd_core(), "%s:%u: lv1_stop_lpm failed: %s\n",
+ __func__, __LINE__, ps3_result(result));
+ return;
+ }
+
+ lpm_priv->sizeof_traced_data = param;
+ lpm_priv->sizeof_total_copied_data = 0;
+}
+EXPORT_SYMBOL_GPL(ps3_disable_pm);
+
+/**
+ * _ps3_copy_trace_buffer - Copy the trace buffer.
+ */
+
+static u64 _ps3_copy_trace_buffer(u64 offset, u64 size, u64 *to, int to_user)
+{
+ int result;
+ u64 sizeof_copied_data;
+
+ if (offset >= lpm_priv->sizeof_traced_data)
+ return 0;
+
+ result = lv1_copy_lpm_trace_buffer(lpm_priv->lpm_id, offset, size,
+ &sizeof_copied_data);
+ if (result) {
+ dev_err(sbd_core(), "%s:%u: lv1_copy_lpm_trace_buffer failed: "
+ "offset 0x%lx, size 0x%lx: %s\n", __func__, __LINE__,
+ offset, size, ps3_result(result));
+ return 0;
+ }
+
+ if (to_user) {
+ result = copy_to_user((void __user *)to, lpm_priv->tb_cache,
+ sizeof_copied_data);
+ if (result) {
+ dev_err(sbd_core(), "%s:%u: copy_to_user() error. "
+ "offset:0x%lx size:0x%lx dest:0x%p src:0x%p\n",
+ __func__, __LINE__, offset, sizeof_copied_data,
+ to, lpm_priv->tb_cache);
+ return 0;
+ }
+ } else
+ memcpy(to, lpm_priv->tb_cache, sizeof_copied_data);
+
+ return sizeof_copied_data;
+}
+
+u64 ps3_copy_trace_buffer(u64 offset, u64 size, void *to, int to_user)
+{
+ u64 sz;
+ u64 cp_size;
+ u64 total_cp_size;
+
+ if (!lpm_priv->tb_cache)
+ return 0;
+
+ cp_size = size;
+ if (cp_size > lpm_priv->tb_cache_size)
+ cp_size = lpm_priv->tb_cache_size;
+
+ total_cp_size = 0;
+ while (total_cp_size < size) {
+ sz = _ps3_copy_trace_buffer(offset, cp_size, to, to_user);
+ if (!sz)
+ break;
+
+ total_cp_size += sz;
+ offset += sz;
+ to = ((u8 *)to + sz);
+ }
+ return total_cp_size;
+}
+
+/**
+ * ps3_get_and_clear_pm_interrupts -
+ *
+ * Clearing interrupts for the entire performance monitoring unit.
+ * Reading pm_status clears the interrupt bits.
+ */
+
+u32 ps3_get_and_clear_pm_interrupts(u32 cpu)
+{
+ return ps3_read_pm(cpu, pm_status);
+}
+EXPORT_SYMBOL_GPL(ps3_get_and_clear_pm_interrupts);
+
+/**
+ * ps3_enable_pm_interrupts -
+ *
+ * Enabling interrupts for the entire performance monitoring unit.
+ * Enables the interrupt bits in the pm_status register.
+ */
+
+void ps3_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask)
+{
+ if (mask)
+ ps3_write_pm(cpu, pm_status, mask);
+}
+EXPORT_SYMBOL_GPL(ps3_enable_pm_interrupts);
+
+/**
+ * ps3_enable_pm_interrupts -
+ *
+ * Disabling interrupts for the entire performance monitoring unit.
+ */
+
+void ps3_disable_pm_interrupts(u32 cpu)
+{
+ ps3_get_and_clear_pm_interrupts(cpu);
+ ps3_write_pm(cpu, pm_status, 0);
+}
+EXPORT_SYMBOL_GPL(ps3_disable_pm_interrupts);
+
+/**
+ * ps3_lpm_open - Open the lpm device.
+ * @tb_cache: Optional user supplied buffer for the tb cache. If NULL,
+ * the driver will use an internally managed tb cache buffer.
+ * @tb_cache_size: The size in bytes of the user supplied tb cache buffer.
+ * Unused if @tb_cache is NULL.
+ * @tb_type:
+ *
+ */
+
+int ps3_lpm_open(void *tb_cache, u64 tb_cache_size, u64 tb_type)
+{
+ int result;
+ u64 cbe_node_id;
+ u64 tb_size;
+ u64 ctrl_opt;
+ u64 tb_cache_lpar_addr;
+ u64 lpm_id;
+ u64 outlet_id;
+ u64 used_tb_size;
+
+ if (!lpm_priv) {
+ BUG();
+ return -ENODEV;
+ }
+
+ mutex_lock(&lpm_priv->mutex);
+
+ if (lpm_priv->constructed) {
+ dev_err(sbd_core(), "%s:%u: called twice.\n", __func__,
+ __LINE__);
+ result = -EBUSY;
+ goto unlock;
+ }
+
+ if (tb_cache)
+ lpm_priv->tb_cache_internal = 0;
+ else {
+ dev_dbg(sbd_core(), "%s:%u: Using internal TB cache\n",
+ __func__, __LINE__);
+
+ lpm_priv->tb_cache_internal = 1;
+ tb_cache_size = PS3_SIZE_OF_PM_DEFAULT_TRACE_BUFFER_CACHE;
+ tb_cache = kzalloc(tb_cache_size, GFP_KERNEL);
+
+ if (!tb_cache) {
+ dev_err(sbd_core(), "%s:%u: alloc internal tb_cache "
+ "failed\n", __func__, __LINE__);
+ result = -ENOMEM;
+ goto fail_malloc;
+ }
+ }
+
+ cbe_node_id = 0;
+ if (tb_cache) {
+ if (tb_type == 0) {
+ /* no trace buffer */
+ tb_type = 0;
+ tb_size = 0;
+ ctrl_opt = 0;
+ tb_cache_lpar_addr = 0;
+ } else if (tb_type == 1) {
+ /* internal trace buffer */
+ tb_size = PS3_SIZE_OF_PM_INTERNAL_TRACE_BUFFER;
+ ctrl_opt = 0;
+ } else {
+ dev_err(sbd_core(), "%s:%u: Unkown TB type: 0x%lx\n",
+ __func__, __LINE__, tb_type);
+ result = -EINVAL;
+ goto fail_type;
+ }
+ tb_cache_lpar_addr = (u64)ps3_mm_phys_to_lpar(__pa(tb_cache));
+ } else {
+ /* no trace buffer */
+ tb_type = 0;
+ tb_size = 0;
+ ctrl_opt = 0;
+ tb_cache_lpar_addr = 0;
+ }
+
+ result = lv1_construct_lpm(cbe_node_id, tb_type, tb_size, ctrl_opt,
+ tb_cache_lpar_addr, tb_cache_size,
+ &lpm_id, &outlet_id, &used_tb_size);
+
+ if (result) {
+ dev_err(sbd_core(), "%s:%u: lv1_construct_lpm failed: %s\n",
+ __func__, __LINE__, ps3_result(result));
+ result = -EINVAL;
+ goto fail_construct;
+ }
+
+ lpm_priv->constructed = 1;
+ lpm_priv->tb_cache = tb_cache;
+ lpm_priv->tb_cache_size = tb_cache_size;
+ lpm_priv->lpm_id = lpm_id;
+ lpm_priv->outlet_id = outlet_id;
+ lpm_priv->tb_size = used_tb_size;
+ lpm_priv->shadow_pm_control = PS3_SHADOW_REG_INIT_VALUE;
+ lpm_priv->shadow_pm_start_stop = PS3_SHADOW_REG_INIT_VALUE;
+ lpm_priv->shadow_pm_interval = PS3_SHADOW_REG_INIT_VALUE;
+ lpm_priv->shadow_group_control = PS3_SHADOW_REG_INIT_VALUE;
+ lpm_priv->shadow_debug_bus_control = PS3_SHADOW_REG_INIT_VALUE;
+
+ dev_dbg(sbd_core(), "%s:%u: lpm id 0x%lx, outlet 0x%lx, "
+ "tb_size 0x%lx\n", __func__, __LINE__, lpm_priv->lpm_id,
+ lpm_priv->outlet_id, lpm_priv->tb_size);
+
+ mutex_unlock(&lpm_priv->mutex);
+ return 0;
+
+fail_construct:
+fail_type:
+ if (lpm_priv->tb_cache_internal) {
+ kfree(lpm_priv->tb_cache);
+ lpm_priv->tb_cache = NULL;
+ }
+fail_malloc:
+unlock:
+ mutex_unlock(&lpm_priv->mutex);
+ return result;
+}
+EXPORT_SYMBOL_GPL(ps3_lpm_open);
+
+/**
+ * ps3_lpm_close - Close the lpm device.
+ *
+ */
+
+int ps3_lpm_close(void)
+{
+ dev_dbg(sbd_core(), "%s:%u\n", __func__, __LINE__);
+
+ mutex_lock(&lpm_priv->mutex);
+
+ if (lpm_priv->constructed)
+ lv1_destruct_lpm(lpm_priv->lpm_id);
+
+ lpm_priv->constructed = 0;
+ lpm_priv->lpm_id = 0;
+
+ if (lpm_priv->tb_cache_internal) {
+ kfree(lpm_priv->tb_cache);
+ lpm_priv->tb_cache = NULL;
+ }
+
+ mutex_unlock(&lpm_priv->mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ps3_lpm_close);
+
+static int __devinit ps3_lpm_probe(struct ps3_system_bus_device *dev)
+{
+ dev_dbg(&dev->core, " -> %s:%u\n", __func__, __LINE__);
+
+ if (lpm_priv) {
+ dev_info(&dev->core, "%s:%u: called twice\n",
+ __func__, __LINE__);
+ return -EBUSY;
+ }
+
+ lpm_priv = kzalloc(sizeof(*lpm_priv), GFP_KERNEL);
+
+ if (!lpm_priv)
+ return -ENOMEM;
+
+ lpm_priv->sbd = dev;
+ lpm_priv->pu_id = dev->lpm.pu_id;
+ lpm_priv->rights = dev->lpm.rights;
+ mutex_init(&lpm_priv->mutex);
+
+ dev_info(&dev->core, " <- %s:%u:\n", __func__, __LINE__);
+
+ return 0;
+}
+
+static int ps3_lpm_remove(struct ps3_system_bus_device *dev)
+{
+ dev_dbg(&dev->core, " -> %s:%u:\n", __func__, __LINE__);
+
+ ps3_lpm_close();
+
+ kfree(lpm_priv);
+ lpm_priv = NULL;
+
+ dev_info(&dev->core, " <- %s:%u:\n", __func__, __LINE__);
+ return 0;
+}
+
+static struct ps3_system_bus_driver ps3_lpm_driver = {
+ .match_id = PS3_MATCH_ID_LPM,
+ .core.name = "ps3-lpm",
+ .core.owner = THIS_MODULE,
+ .probe = ps3_lpm_probe,
+ .remove = ps3_lpm_remove,
+ .shutdown = ps3_lpm_remove,
+};
+
+static int __init ps3_lpm_init(void)
+{
+ pr_debug("%s:%d:\n", __func__, __LINE__);
+ return ps3_system_bus_driver_register(&ps3_lpm_driver);
+}
+
+static void __exit ps3_lpm_exit(void)
+{
+ pr_debug("%s:%d:\n", __func__, __LINE__);
+ ps3_system_bus_driver_unregister(&ps3_lpm_driver);
+}
+
+module_init(ps3_lpm_init);
+module_exit(ps3_lpm_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PS3 Logical Performance Monitor Driver");
+MODULE_AUTHOR("Sony Corporation");
+MODULE_ALIAS(PS3_MODULE_ALIAS_LPM);
--- a/include/asm-powerpc/ps3.h
+++ b/include/asm-powerpc/ps3.h
@@ -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;
@@ -445,5 +446,41 @@ struct ps3_prealloc {
extern struct ps3_prealloc ps3fb_videomemory;
extern struct ps3_prealloc ps3flash_bounce_buffer;
+/* logical performance monitor */
+
+enum ps3_lpm_rights {
+ PS3_LPM_RIGHTS_USE_LPM = 1,
+};
+
+int ps3_lpm_open(void *tb_cache, u64 tb_cache_size, u64 tb_type);
+int ps3_lpm_close(void);
+void ps3_set_bookmark(u64 bookmark);
+void ps3_set_pm_bookmark(u64 tag, u64 incident, u64 th_id);
+u64 ps3_copy_trace_buffer(u64 offset, u64 size, void *to, int to_user);
+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
--
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