# # Copyright (C) 2006-2009 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # I2C_MENU:=I2C support ModuleConfVar=$(word 1,$(subst :,$(space),$(1))) ModuleFullPath=$(LINUX_DIR)/$(word 2,$(subst :,$(space),$(1))).ko ModuleKconfig=$(foreach mod,$(1),$(call ModuleConfVar,$(mod))) ModuleFiles=$(foreach mod,$(1),$(call ModuleFullPath,$(mod))) ModuleAuto=$(call AutoLoad,$(1),$(foreach mod,$(2),$(basename $(notdir $(call ModuleFullPath,$(mod))))),$(3)) define i2c_defaults SUBMENU:=$(I2C_MENU) KCONFIG:=$(call ModuleKconfig,$(1)) FILES:=$(call ModuleFiles,$(1)) AUTOLOAD:=$(call ModuleAuto,$(2),$(1),$(3)) endef I2C_CORE_MODULES:= \ CONFIG_I2C:drivers/i2c/i2c-core \ CONFIG_I2C_CHARDEV:drivers/i2c/i2c-dev define KernelPackage/i2c-core $(call i2c_defaults,$(I2C_CORE_MODULES),51) TITLE:=I2C support endef define KernelPackage/i2c-core/description Kernel modules for I2C support endef $(eval $(call KernelPackage,i2c-core)) I2C_ALGOBIT_MODULES:= \ CONFIG_I2C_ALGOBIT:drivers/i2c/algos/i2c-algo-bit define KernelPackage/i2c-algo-bit $(call i2c_defaults,$(I2C_ALGOBIT_MODULES),55) TITLE:=I2C bit-banging interfaces DEPENDS:=+kmod-i2c-core endef define KernelPackage/i2c-algo-bit/description Kernel modules for I2C bit-banging interfaces endef $(eval $(call KernelPackage,i2c-algo-bit)) I2C_ALGOPCA_MODULES:= \ CONFIG_I2C_ALGOPCA:drivers/i2c/algos/i2c-algo-pca define KernelPackage/i2c-algo-pca $(call i2c_defaults,$(I2C_ALGOPCA_MODULES),55) TITLE:=I2C PCA 9564 interfaces DEPENDS:=+kmod-i2c-core endef define KernelPackage/i2c-algo-pca/description Kernel modules for I2C PCA 9564 interfaces endef $(eval $(call KernelPackage,i2c-algo-pca)) I2C_ALGOPCF_MODULES:= \ CONFIG_I2C_ALGOPCF:drivers/i2c/algos/i2c-algo-pcf define KernelPackage/i2c-algo-pcf $(call i2c_defaults,$(I2C_ALGOPCF_MODULES),55) TITLE:=I2C PCF 8584 interfaces DEPENDS:=+kmod-i2c-core endef define KernelPackage/i2c-algo-pcf/description Kernel modules for I2C PCF 8584 interfaces endef $(eval $(call KernelPackage,i2c-algo-pcf)) I2C_GPIO_MODULES:= \ CONFIG_I2C_GPIO:drivers/i2c/busses/i2c-gpio define KernelPackage/i2c-gpio $(call i2c_defaults,$(I2C_GPIO_MODULES),59) TITLE:=GPIO-based bitbanging I2C DEPENDS:=@GPIO_SUPPORT +kmod-i2c-algo-bit endef define KernelPackage/i2c-gpio/description Kernel modules for a very simple bitbanging I2C driver utilizing the arch-neutral GPIO API to control the SCL and SDA lines. endef $(eval $(call KernelPackage,i2c-gpio)) I2C_I801_MODULES:= \ CONFIG_I2C_I801:drivers/i2c/busses/i2c-i801 define KernelPackage/i2c-i801 $(call i2c_defaults,$(I2C_I801_MODULES),59) TITLE:=Intel I801 and compatible I2C interfaces DEPENDS:=@PCI_SUPPORT @TARGET_x86 +kmod-i2c-core +kmod-i2c-smbus endef define KernelPackage/i2c-i801/description Support for the Intel I801 family of mainboard I2C interfaces, specifically 82801AA, 82801AB, 82801BA, 82801CA/CAM, 82801DB, 82801EB/ER (ICH5/ICH5R), 6300ESB, ICH6, ICH7, ESB2, ICH8, ICH9, EP80579 (Tolapai), ICH10, 5/3400 Series (PCH), 6 Series (PCH), Patsburg (PCH), DH89xxCC (PCH), Panther Point (PCH), Lynx Point (PCH), Lynx Point-LP (PCH), Avoton (SOC), Wellsburg (PCH), Coleto Creek (PCH), Wildcat Point (PCH), Wildcat Point-LP (PCH), BayTrail (SOC), Sunrise Point-H (PCH), Sunrise Point-LP (PCH), DNV (SOC), Broxton (SOC), Lewisburg (PCH). endef $(eval $(call KernelPackage,i2c-i801)) I2C_MUX_MODULES:= \ CONFIG_I2C_MUX:drivers/i2c/i2c-mux define KernelPackage/i2c-mux $(call i2c_defaults,$(I2C_MUX_MODULES),51) TITLE:=I2C bus multiplexing support DEPENDS:=+kmod-i2c-core endef define KernelPackage/i2c-mux/description Kernel modules for I2C bus multiplexing support endef $(eval $(call KernelPackage,i2c-mux)) I2C_MUX_GPIO_MODULES:= \ CONFIG_I2C_MUX_GPIO:drivers/i2c/muxes/i2c-mux-gpio define KernelPackage/i2c-mux-gpio $(call i2c_defaults,$(I2C_MUX_GPIO_MODULES),51) TITLE:=GPIO-based I2C mux/switches DEPENDS:=+kmod-i2c-mux endef define KernelPackage/i2c-mux-gpio/description Kernel modules for GENERIC_GPIO I2C bus mux/switching devices endef $(eval $(call KernelPackage,i2c-mux-gpio)) I2C_MUX_PCA9541_MODULES:= \ CONFIG_I2C_MUX_PCA9541:drivers/i2c/muxes/i2c-mux-pca9541 define KernelPackage/i2c-mux-pca9541 $(call i2c_defaults,$(I2C_MUX_PCA9541_MODULES),51) TITLE:=Philips PCA9541 I2C mux/switches DEPENDS:=+kmod-i2c-mux endef define KernelPackage/i2c-mux-pca9541/description Kernel modules for PCA9541 I2C bus mux/switching devices endef $(eval $(call KernelPackage,i2c-mux-pca9541)) I2C_MUX_PCA954x_MODULES:= \ CONFIG_I2C_MUX_PCA954x:drivers/i2c/muxes/i2c-mux-pca954x define KernelPackage/i2c-mux-pca954x $(call i2c_defaults,$(I2C_MUX_PCA954x_MODULES),51) TITLE:=Philips PCA954x I2C mux/switches DEPENDS:=+kmod-i2c-mux endef define KernelPackage/i2c-mux-pca954x/description Kernel modules for PCA954x I2C bus mux/switching devices endef $(eval $(call KernelPackage,i2c-mux-pca954x)) I2C_PIIX4_MODULES:= \ CONFIG_I2C_PIIX4:drivers/i2c/busses/i2c-piix4 define KernelPackage/i2c-piix4 $(call i2c_defaults,$(I2C_PIIX4_MODULES),59) TITLE:=Intel PIIX4 and compatible I2C interfaces DEPENDS:=@PCI_SUPPORT @TARGET_x86 +kmod-i2c-core endef define KernelPackage/i2c-piix4/description Support for the Intel PIIX4 family of mainboard I2C interfaces, specifically Intel PIIX4, Intel 440MX, ATI IXP200, ATI IXP300, ATI IXP400, ATI SB600, ATI SB700/SP5100, ATI SB800, AMD Hudson-2, AMD ML, AMD CZ, Serverworks OSB4, Serverworks CSB5, Serverworks CSB6, Serverworks HT-1000, Serverworks HT-1100 and SMSC Victory66. endef $(eval $(call KernelPackage,i2c-piix4)) I2C_PXA_MODULES:= \ CONFIG_I2C_PXA:drivers/i2c/busses/i2c-pxa define KernelPackage/i2c-pxa $(call i2c_defaults,$(I2C_PXA_MODULES),50) TITLE:=Intel PXA I2C bus driver DEPENDS:=+kmod-i2c-core endef define KernelPackage/i2c-pxa/description Kernel module for Intel PXA2XX I2C adapter endef $(eval $(call KernelPackage,i2c-pxa)) I2C_SMBUS_MODULES:= \ CONFIG_I2C_SMBUS:drivers/i2c/i2c-smbus define KernelPackage/i2c-smbus $(call i2c_defaults,$(I2C_SMBUS_MODULES),58) TITLE:=SMBus-specific protocols helper DEPENDS:=+kmod-i2c-core endef define KernelPackage/i2c-smbus/description Support for the SMBus extensions to the I2C specification. endef $(eval $(call KernelPackage,i2c-smbus)) I2C_TINY_USB_MODULES:= \ CONFIG_I2C_TINY_USB:drivers/i2c/busses/i2c-tiny-usb define KernelPackage/i2c-tiny-usb $(call i2c_defaults,$(I2C_TINY_USB_MODULES),59) TITLE:=I2C Tiny USB adaptor DEPENDS:=@USB_SUPPORT +kmod-i2c-core +kmod-usb-core endef define KernelPackage/i2c-tiny-usb/description Kernel module for the I2C Tiny USB adaptor developed by Till Harbaum (http://www.harbaum.org/till/i2c_tiny_usb) endef $(eval $(call KernelPackage,i2c-tiny-usb)) '>108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 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/**
 * @file nmi_int.c
 *
 * @remark Copyright 2002 OProfile authors
 * @remark Read the file COPYING
 *
 * @author John Levon <levon@movementarian.org>
 *
 * Modified for Xen: by Aravind Menon & Jose Renato Santos
 *   These modifications are:
 *   Copyright (C) 2005 Hewlett-Packard Co.
 */

#include <xen/event.h>
#include <xen/types.h>
#include <xen/errno.h>
#include <xen/init.h>
#include <xen/nmi.h>
#include <public/xen.h>
#include <asm/msr.h>
#include <asm/apic.h>
#include <asm/regs.h>
#include <asm/current.h>
#include <xen/delay.h>
#include <xen/string.h>
 
#include "op_counter.h"
#include "op_x86_model.h"
 
struct op_counter_config counter_config[OP_MAX_COUNTER];

static struct op_x86_model_spec const * model;
static struct op_msrs cpu_msrs[NR_CPUS];
static unsigned long saved_lvtpc[NR_CPUS];

static char *cpu_type;

extern int is_active(struct domain *d);
extern int is_passive(struct domain *d);

int passive_domain_do_rdmsr(struct cpu_user_regs *regs)
{
	u64 msr_content;
	int type, index;
	struct vpmu_struct *vpmu = vcpu_vpmu(current);

	if ( model->is_arch_pmu_msr == NULL )
		return 0;
	if ( !model->is_arch_pmu_msr((u64)regs->ecx, &type, &index) )
		return 0;
	if ( !(vpmu->flags & PASSIVE_DOMAIN_ALLOCATED) )
		if ( ! model->allocated_msr(current) )
			return 0;

	model->load_msr(current, type, index, &msr_content);
	regs->eax = msr_content & 0xFFFFFFFF;
	regs->edx = msr_content >> 32;
	return 1;
}


int passive_domain_do_wrmsr(struct cpu_user_regs *regs)
{
	u64 msr_content;
	int type, index;
	struct vpmu_struct *vpmu = vcpu_vpmu(current);

	if ( model == NULL )
		return 0;
	if ( model->is_arch_pmu_msr == NULL )
		return 0;
	if ( !model->is_arch_pmu_msr((u64)regs->ecx, &type, &index) )
		return 0;

	if ( !(vpmu->flags & PASSIVE_DOMAIN_ALLOCATED) )
		if ( ! model->allocated_msr(current) )
			return 0;

	msr_content = (u32)regs->eax | ((u64)regs->edx << 32);
	model->save_msr(current, type, index, msr_content);
	return 1;
}

void passive_domain_destroy(struct vcpu *v)
{
	struct vpmu_struct *vpmu = vcpu_vpmu(v);
	if ( vpmu->flags & PASSIVE_DOMAIN_ALLOCATED )
		model->free_msr(v);
}

static int nmi_callback(struct cpu_user_regs *regs, int cpu)
{
	int xen_mode, ovf;

	ovf = model->check_ctrs(cpu, &cpu_msrs[cpu], regs);
	xen_mode = ring_0(regs);
	if ( ovf && is_active(current->domain) && !xen_mode )
		send_guest_vcpu_virq(current, VIRQ_XENOPROF);

	if ( ovf == 2 ) 
                test_and_set_bool(current->nmi_pending);
	return 1;
}
 
 
static void nmi_cpu_save_registers(struct op_msrs *msrs)
{
	unsigned int const nr_ctrs = model->num_counters;
	unsigned int const nr_ctrls = model->num_controls;
	struct op_msr *counters = msrs->counters;
	struct op_msr *controls = msrs->controls;
	unsigned int i;

	for (i = 0; i < nr_ctrs; ++i) {
		rdmsr(counters[i].addr,
			counters[i].saved.low,
			counters[i].saved.high);
	}
 
	for (i = 0; i < nr_ctrls; ++i) {
		rdmsr(controls[i].addr,
			controls[i].saved.low,
			controls[i].saved.high);
	}
}


static void nmi_save_registers(void * dummy)
{
	int cpu = smp_processor_id();
	struct op_msrs * msrs = &cpu_msrs[cpu];
	model->fill_in_addresses(msrs);
	nmi_cpu_save_registers(msrs);
}


static void free_msrs(void)
{
	int i;
	for (i = 0; i < NR_CPUS; ++i) {
		xfree(cpu_msrs[i].counters);
		cpu_msrs[i].counters = NULL;
		xfree(cpu_msrs[i].controls);
		cpu_msrs[i].controls = NULL;
	}
}


static int allocate_msrs(void)