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review.evervolv.com / android_kernel_htc_msm8960 / 02e462972034e99345b20825c5c658f722bf388f / . / drivers / gpu / msm / kgsl_pwrctrl.h
blob: 794a8955a3f67d1e4383afa22000c061b407065f [file] [log] [blame]
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]1/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 */
13#ifndef __KGSL_PWRCTRL_H
14#define __KGSL_PWRCTRL_H
15
16/*****************************************************************************
17** power flags
18*****************************************************************************/
19#define KGSL_PWRFLAGS_POWER_ON 0
20#define KGSL_PWRFLAGS_CLK_ON 1
21#define KGSL_PWRFLAGS_AXI_ON 2
22#define KGSL_PWRFLAGS_IRQ_ON 3
23
24#define KGSL_PWRFLAGS_ON 1
25#define KGSL_PWRFLAGS_OFF 0
26
27#define KGSL_PWRLEVEL_TURBO 0
28#define KGSL_PWRLEVEL_NOMINAL 1
Lucille Sylvester02e46292011-09-21 14:59:17 -0600[diff] [blame^]29#define KGSL_PWRLEVEL_LOW_OFFSET 2
30
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]31#define KGSL_MAX_CLKS 5
32
33struct platform_device;
34
Suman Tatiraju7fe62a32011-07-14 16:40:37 -0700[diff] [blame]35struct kgsl_busy {
36 struct timeval start;
37 struct timeval stop;
38 int on_time;
39 int time;
40 int on_time_old;
41 int time_old;
42 unsigned int no_nap_cnt;
43};
44
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]45struct kgsl_pwrctrl {
46 int interrupt_num;
47 int have_irq;
48 struct clk *ebi1_clk;
49 struct clk *grp_clks[KGSL_MAX_CLKS];
50 unsigned long power_flags;
51 struct kgsl_pwrlevel pwrlevels[KGSL_MAX_PWRLEVELS];
52 unsigned int active_pwrlevel;
53 int thermal_pwrlevel;
54 unsigned int num_pwrlevels;
55 unsigned int interval_timeout;
56 struct regulator *gpu_reg;
57 uint32_t pcl;
58 unsigned int nap_allowed;
59 const char *regulator_name;
60 const char *irq_name;
61 const char *src_clk_name;
62 s64 time;
Suman Tatiraju7fe62a32011-07-14 16:40:37 -0700[diff] [blame]63 struct kgsl_busy busy;
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]64};
65
66void kgsl_pwrctrl_clk(struct kgsl_device *device, int state);
67void kgsl_pwrctrl_axi(struct kgsl_device *device, int state);
68void kgsl_pwrctrl_pwrrail(struct kgsl_device *device, int state);
69void kgsl_pwrctrl_irq(struct kgsl_device *device, int state);
70int kgsl_pwrctrl_init(struct kgsl_device *device);
71void kgsl_pwrctrl_close(struct kgsl_device *device);
72void kgsl_timer(unsigned long data);
73void kgsl_idle_check(struct work_struct *work);
74void kgsl_pre_hwaccess(struct kgsl_device *device);
75void kgsl_check_suspended(struct kgsl_device *device);
76int kgsl_pwrctrl_sleep(struct kgsl_device *device);
77void kgsl_pwrctrl_wake(struct kgsl_device *device);
78void kgsl_pwrctrl_pwrlevel_change(struct kgsl_device *device,
79 unsigned int level);
80int kgsl_pwrctrl_init_sysfs(struct kgsl_device *device);
81void kgsl_pwrctrl_uninit_sysfs(struct kgsl_device *device);
82void kgsl_pwrctrl_enable(struct kgsl_device *device);
83void kgsl_pwrctrl_disable(struct kgsl_device *device);
84static inline unsigned long kgsl_get_clkrate(struct clk *clk)
85{
86 return (clk != NULL) ? clk_get_rate(clk) : 0;
87}
88
89#endif /* __KGSL_PWRCTRL_H */