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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/powerpc/platforms/cell/pmu.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/platforms/cell/pmu.c')
-rw-r--r--ANDROID_3.4.5/arch/powerpc/platforms/cell/pmu.c424
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diff --git a/ANDROID_3.4.5/arch/powerpc/platforms/cell/pmu.c b/ANDROID_3.4.5/arch/powerpc/platforms/cell/pmu.c
deleted file mode 100644
index 59c1a169..00000000
--- a/ANDROID_3.4.5/arch/powerpc/platforms/cell/pmu.c
+++ /dev/null
@@ -1,424 +0,0 @@
-/*
- * Cell Broadband Engine Performance Monitor
- *
- * (C) Copyright IBM Corporation 2001,2006
- *
- * Author:
- * David Erb (djerb@us.ibm.com)
- * Kevin Corry (kevcorry@us.ibm.com)
- *
- * 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; either version 2, or (at your option)
- * any later version.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <linux/export.h>
-#include <asm/io.h>
-#include <asm/irq_regs.h>
-#include <asm/machdep.h>
-#include <asm/pmc.h>
-#include <asm/reg.h>
-#include <asm/spu.h>
-#include <asm/cell-regs.h>
-
-#include "interrupt.h"
-
-/*
- * When writing to write-only mmio addresses, save a shadow copy. All of the
- * registers are 32-bit, but stored in the upper-half of a 64-bit field in
- * pmd_regs.
- */
-
-#define WRITE_WO_MMIO(reg, x) \
- do { \
- u32 _x = (x); \
- struct cbe_pmd_regs __iomem *pmd_regs; \
- struct cbe_pmd_shadow_regs *shadow_regs; \
- pmd_regs = cbe_get_cpu_pmd_regs(cpu); \
- shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu); \
- out_be64(&(pmd_regs->reg), (((u64)_x) << 32)); \
- shadow_regs->reg = _x; \
- } while (0)
-
-#define READ_SHADOW_REG(val, reg) \
- do { \
- struct cbe_pmd_shadow_regs *shadow_regs; \
- shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu); \
- (val) = shadow_regs->reg; \
- } while (0)
-
-#define READ_MMIO_UPPER32(val, reg) \
- do { \
- struct cbe_pmd_regs __iomem *pmd_regs; \
- pmd_regs = cbe_get_cpu_pmd_regs(cpu); \
- (val) = (u32)(in_be64(&pmd_regs->reg) >> 32); \
- } while (0)
-
-/*
- * Physical counter registers.
- * Each physical counter can act as one 32-bit counter or two 16-bit counters.
- */
-
-u32 cbe_read_phys_ctr(u32 cpu, u32 phys_ctr)
-{
- u32 val_in_latch, val = 0;
-
- if (phys_ctr < NR_PHYS_CTRS) {
- READ_SHADOW_REG(val_in_latch, counter_value_in_latch);
-
- /* Read the latch or the actual counter, whichever is newer. */
- if (val_in_latch & (1 << phys_ctr)) {
- READ_SHADOW_REG(val, pm_ctr[phys_ctr]);
- } else {
- READ_MMIO_UPPER32(val, pm_ctr[phys_ctr]);
- }
- }
-
- return val;
-}
-EXPORT_SYMBOL_GPL(cbe_read_phys_ctr);
-
-void cbe_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val)
-{
- struct cbe_pmd_shadow_regs *shadow_regs;
- u32 pm_ctrl;
-
- if (phys_ctr < NR_PHYS_CTRS) {
- /* Writing to a counter only writes to a hardware latch.
- * The new value is not propagated to the actual counter
- * until the performance monitor is enabled.
- */
- WRITE_WO_MMIO(pm_ctr[phys_ctr], val);
-
- pm_ctrl = cbe_read_pm(cpu, pm_control);
- if (pm_ctrl & CBE_PM_ENABLE_PERF_MON) {
- /* The counters are already active, so we need to
- * rewrite the pm_control register to "re-enable"
- * the PMU.
- */
- cbe_write_pm(cpu, pm_control, pm_ctrl);
- } else {
- shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu);
- shadow_regs->counter_value_in_latch |= (1 << phys_ctr);
- }
- }
-}
-EXPORT_SYMBOL_GPL(cbe_write_phys_ctr);
-
-/*
- * "Logical" counter registers.
- * These will read/write 16-bits or 32-bits depending on the
- * current size of the counter. Counters 4 - 7 are always 16-bit.
- */
-
-u32 cbe_read_ctr(u32 cpu, u32 ctr)
-{
- u32 val;
- u32 phys_ctr = ctr & (NR_PHYS_CTRS - 1);
-
- val = cbe_read_phys_ctr(cpu, phys_ctr);
-
- if (cbe_get_ctr_size(cpu, phys_ctr) == 16)
- val = (ctr < NR_PHYS_CTRS) ? (val >> 16) : (val & 0xffff);
-
- return val;
-}
-EXPORT_SYMBOL_GPL(cbe_read_ctr);
-
-void cbe_write_ctr(u32 cpu, u32 ctr, u32 val)
-{
- u32 phys_ctr;
- u32 phys_val;
-
- phys_ctr = ctr & (NR_PHYS_CTRS - 1);
-
- if (cbe_get_ctr_size(cpu, phys_ctr) == 16) {
- phys_val = cbe_read_phys_ctr(cpu, phys_ctr);
-
- if (ctr < NR_PHYS_CTRS)
- val = (val << 16) | (phys_val & 0xffff);
- else
- val = (val & 0xffff) | (phys_val & 0xffff0000);
- }
-
- cbe_write_phys_ctr(cpu, phys_ctr, val);
-}
-EXPORT_SYMBOL_GPL(cbe_write_ctr);
-
-/*
- * Counter-control registers.
- * Each "logical" counter has a corresponding control register.
- */
-
-u32 cbe_read_pm07_control(u32 cpu, u32 ctr)
-{
- u32 pm07_control = 0;
-
- if (ctr < NR_CTRS)
- READ_SHADOW_REG(pm07_control, pm07_control[ctr]);
-
- return pm07_control;
-}
-EXPORT_SYMBOL_GPL(cbe_read_pm07_control);
-
-void cbe_write_pm07_control(u32 cpu, u32 ctr, u32 val)
-{
- if (ctr < NR_CTRS)
- WRITE_WO_MMIO(pm07_control[ctr], val);
-}
-EXPORT_SYMBOL_GPL(cbe_write_pm07_control);
-
-/*
- * Other PMU control registers. Most of these are write-only.
- */
-
-u32 cbe_read_pm(u32 cpu, enum pm_reg_name reg)
-{
- u32 val = 0;
-
- switch (reg) {
- case group_control:
- READ_SHADOW_REG(val, group_control);
- break;
-
- case debug_bus_control:
- READ_SHADOW_REG(val, debug_bus_control);
- break;
-
- case trace_address:
- READ_MMIO_UPPER32(val, trace_address);
- break;
-
- case ext_tr_timer:
- READ_SHADOW_REG(val, ext_tr_timer);
- break;
-
- case pm_status:
- READ_MMIO_UPPER32(val, pm_status);
- break;
-
- case pm_control:
- READ_SHADOW_REG(val, pm_control);
- break;
-
- case pm_interval:
- READ_MMIO_UPPER32(val, pm_interval);
- break;
-
- case pm_start_stop:
- READ_SHADOW_REG(val, pm_start_stop);
- break;
- }
-
- return val;
-}
-EXPORT_SYMBOL_GPL(cbe_read_pm);
-
-void cbe_write_pm(u32 cpu, enum pm_reg_name reg, u32 val)
-{
- switch (reg) {
- case group_control:
- WRITE_WO_MMIO(group_control, val);
- break;
-
- case debug_bus_control:
- WRITE_WO_MMIO(debug_bus_control, val);
- break;
-
- case trace_address:
- WRITE_WO_MMIO(trace_address, val);
- break;
-
- case ext_tr_timer:
- WRITE_WO_MMIO(ext_tr_timer, val);
- break;
-
- case pm_status:
- WRITE_WO_MMIO(pm_status, val);
- break;
-
- case pm_control:
- WRITE_WO_MMIO(pm_control, val);
- break;
-
- case pm_interval:
- WRITE_WO_MMIO(pm_interval, val);
- break;
-
- case pm_start_stop:
- WRITE_WO_MMIO(pm_start_stop, val);
- break;
- }
-}
-EXPORT_SYMBOL_GPL(cbe_write_pm);
-
-/*
- * Get/set the size of a physical counter to either 16 or 32 bits.
- */
-
-u32 cbe_get_ctr_size(u32 cpu, u32 phys_ctr)
-{
- u32 pm_ctrl, size = 0;
-
- if (phys_ctr < NR_PHYS_CTRS) {
- pm_ctrl = cbe_read_pm(cpu, pm_control);
- size = (pm_ctrl & CBE_PM_16BIT_CTR(phys_ctr)) ? 16 : 32;
- }
-
- return size;
-}
-EXPORT_SYMBOL_GPL(cbe_get_ctr_size);
-
-void cbe_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size)
-{
- u32 pm_ctrl;
-
- if (phys_ctr < NR_PHYS_CTRS) {
- pm_ctrl = cbe_read_pm(cpu, pm_control);
- switch (ctr_size) {
- case 16:
- pm_ctrl |= CBE_PM_16BIT_CTR(phys_ctr);
- break;
-
- case 32:
- pm_ctrl &= ~CBE_PM_16BIT_CTR(phys_ctr);
- break;
- }
- cbe_write_pm(cpu, pm_control, pm_ctrl);
- }
-}
-EXPORT_SYMBOL_GPL(cbe_set_ctr_size);
-
-/*
- * Enable/disable the entire performance monitoring unit.
- * When we enable the PMU, all pending writes to counters get committed.
- */
-
-void cbe_enable_pm(u32 cpu)
-{
- struct cbe_pmd_shadow_regs *shadow_regs;
- u32 pm_ctrl;
-
- shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu);
- shadow_regs->counter_value_in_latch = 0;
-
- pm_ctrl = cbe_read_pm(cpu, pm_control) | CBE_PM_ENABLE_PERF_MON;
- cbe_write_pm(cpu, pm_control, pm_ctrl);
-}
-EXPORT_SYMBOL_GPL(cbe_enable_pm);
-
-void cbe_disable_pm(u32 cpu)
-{
- u32 pm_ctrl;
- pm_ctrl = cbe_read_pm(cpu, pm_control) & ~CBE_PM_ENABLE_PERF_MON;
- cbe_write_pm(cpu, pm_control, pm_ctrl);
-}
-EXPORT_SYMBOL_GPL(cbe_disable_pm);
-
-/*
- * Reading from the trace_buffer.
- * The trace buffer is two 64-bit registers. Reading from
- * the second half automatically increments the trace_address.
- */
-
-void cbe_read_trace_buffer(u32 cpu, u64 *buf)
-{
- struct cbe_pmd_regs __iomem *pmd_regs = cbe_get_cpu_pmd_regs(cpu);
-
- *buf++ = in_be64(&pmd_regs->trace_buffer_0_63);
- *buf++ = in_be64(&pmd_regs->trace_buffer_64_127);
-}
-EXPORT_SYMBOL_GPL(cbe_read_trace_buffer);
-
-/*
- * Enabling/disabling interrupts for the entire performance monitoring unit.
- */
-
-u32 cbe_get_and_clear_pm_interrupts(u32 cpu)
-{
- /* Reading pm_status clears the interrupt bits. */
- return cbe_read_pm(cpu, pm_status);
-}
-EXPORT_SYMBOL_GPL(cbe_get_and_clear_pm_interrupts);
-
-void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask)
-{
- /* Set which node and thread will handle the next interrupt. */
- iic_set_interrupt_routing(cpu, thread, 0);
-
- /* Enable the interrupt bits in the pm_status register. */
- if (mask)
- cbe_write_pm(cpu, pm_status, mask);
-}
-EXPORT_SYMBOL_GPL(cbe_enable_pm_interrupts);
-
-void cbe_disable_pm_interrupts(u32 cpu)
-{
- cbe_get_and_clear_pm_interrupts(cpu);
- cbe_write_pm(cpu, pm_status, 0);
-}
-EXPORT_SYMBOL_GPL(cbe_disable_pm_interrupts);
-
-static irqreturn_t cbe_pm_irq(int irq, void *dev_id)
-{
- perf_irq(get_irq_regs());
- return IRQ_HANDLED;
-}
-
-static int __init cbe_init_pm_irq(void)
-{
- unsigned int irq;
- int rc, node;
-
- for_each_node(node) {
- irq = irq_create_mapping(NULL, IIC_IRQ_IOEX_PMI |
- (node << IIC_IRQ_NODE_SHIFT));
- if (irq == NO_IRQ) {
- printk("ERROR: Unable to allocate irq for node %d\n",
- node);
- return -EINVAL;
- }
-
- rc = request_irq(irq, cbe_pm_irq,
- 0, "cbe-pmu-0", NULL);
- if (rc) {
- printk("ERROR: Request for irq on node %d failed\n",
- node);
- return rc;
- }
- }
-
- return 0;
-}
-machine_arch_initcall(cell, cbe_init_pm_irq);
-
-void cbe_sync_irq(int node)
-{
- unsigned int irq;
-
- irq = irq_find_mapping(NULL,
- IIC_IRQ_IOEX_PMI
- | (node << IIC_IRQ_NODE_SHIFT));
-
- if (irq == NO_IRQ) {
- printk(KERN_WARNING "ERROR, unable to get existing irq %d " \
- "for node %d\n", irq, node);
- return;
- }
-
- synchronize_irq(irq);
-}
-EXPORT_SYMBOL_GPL(cbe_sync_irq);
-