forked from rubenslte/android_kernel_samsung_msm8226
Ram Chandrasekar
6460392a72
Kernel Thermal Monitor exposes an IOCTL dev interface, which can be used for user space cpu frequency mitigation. CRs-Fixed: 538981 Change-Id: Idb8b836970f7d5d029fea606aaa4f7958c982f68 Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
42 lines
885 B
C
42 lines
885 B
C
#ifndef _MSM_THERMAL_IOCTL_H
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#define _MSM_THERMAL_IOCTL_H
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#include <linux/ioctl.h>
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#define MSM_THERMAL_IOCTL_NAME "msm_thermal_query"
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struct __attribute__((__packed__)) cpu_freq_arg {
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uint32_t cpu_num;
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uint32_t freq_req;
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};
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struct __attribute__((__packed__)) msm_thermal_ioctl {
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uint32_t size;
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union {
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struct cpu_freq_arg cpu_freq;
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};
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};
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enum {
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/*Set CPU Frequency*/
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MSM_SET_CPU_MAX_FREQ = 0x00,
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MSM_SET_CPU_MIN_FREQ = 0x01,
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MSM_CMD_MAX_NR,
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};
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#define MSM_THERMAL_MAGIC_NUM 0xCA /*Unique magic number*/
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#define MSM_THERMAL_SET_CPU_MAX_FREQUENCY _IOW(MSM_THERMAL_MAGIC_NUM,\
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MSM_SET_CPU_MAX_FREQ, struct msm_thermal_ioctl)
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#define MSM_THERMAL_SET_CPU_MIN_FREQUENCY _IOW(MSM_THERMAL_MAGIC_NUM,\
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MSM_SET_CPU_MIN_FREQ, struct msm_thermal_ioctl)
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#ifdef __KERNEL__
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extern int msm_thermal_ioctl_init(void);
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extern void msm_thermal_ioctl_cleanup(void);
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#endif
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#endif
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