| /* |
| * Copyright (c) 2015 Samsung Electronics Co., Ltd. |
| * http://www.samsung.com |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/io.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/pm_qos.h> |
| #include <linux/suspend.h> |
| #include <linux/debugfs.h> |
| #include <linux/slab.h> |
| |
| #include <soc/samsung/bts.h> |
| #include "cal_bts8895.h" |
| |
| #define BTS_DBG(x...) if (exynos_bts_log) pr_info(x) |
| |
| #define MIF_UTIL 65 |
| #define INT_UTIL 70 |
| #define INITIAL_MIF_FREQ 2093000 |
| |
| #define QBUSY_DEFAULT 0 |
| #define QFULL_LOW_DEFAULT 0x0 |
| #define QFULL_HIGH_DEFAULT 0x6 |
| static unsigned int exynos_qbusy = QBUSY_DEFAULT; |
| static unsigned int exynos_qfull_low = QFULL_LOW_DEFAULT; |
| static unsigned int exynos_qfull_high = QFULL_HIGH_DEFAULT; |
| |
| static int exynos_bts_log; |
| static unsigned int exynos_mif_util = MIF_UTIL; |
| static unsigned int exynos_int_util = INT_UTIL; |
| static unsigned int default_exynos_qmax_r[] = {0xffff}; |
| static unsigned int default_exynos_qmax_w[] = {0xffff}; |
| static unsigned int default_exynos_tq[] = {0}; |
| static unsigned int *exynos_qmax_r; |
| static unsigned int exynos_nqmax_r; |
| static unsigned int *exynos_qmax_w; |
| static unsigned int exynos_nqmax_w; |
| static unsigned int *exynos_tq; |
| static unsigned int exynos_ntq; |
| static unsigned int exynos_mif_freq = INITIAL_MIF_FREQ; |
| |
| enum bts_index { |
| BTS_IDX_CP, |
| BTS_IDX_DPU0, |
| BTS_IDX_DPU1, |
| BTS_IDX_DPU2, |
| BTS_IDX_CAM0, |
| BTS_IDX_CAM1, |
| BTS_IDX_ISPLP, |
| BTS_IDX_SRDZ, |
| #ifndef CONFIG_SOC_EMULATOR8895 |
| BTS_IDX_IVA, |
| BTS_IDX_DSP, |
| #endif |
| BTS_IDX_VPU, |
| BTS_IDX_MFC0, |
| BTS_IDX_MFC1, |
| BTS_IDX_G2D0, |
| BTS_IDX_G2D1, |
| BTS_IDX_G2D2, |
| BTS_IDX_ALIVE, |
| BTS_IDX_FSYS0, |
| BTS_IDX_PDMA, |
| BTS_IDX_SPDMA, |
| BTS_IDX_ABOX, |
| BTS_IDX_VTS, |
| BTS_IDX_FSYS1, |
| BTS_IDX_GNSS, |
| BTS_IDX_G3D0, |
| BTS_IDX_G3D1, |
| BTS_IDX_G3D2, |
| BTS_IDX_G3D3, |
| }; |
| |
| enum exynos_bts_type { |
| BT_TREX, |
| }; |
| |
| struct bts_table { |
| struct bts_status stat; |
| struct bts_info *next_bts; |
| int prev_scen; |
| int next_scen; |
| }; |
| |
| struct bts_info { |
| const char *name; |
| unsigned int pa_base; |
| void __iomem *va_base; |
| bool enable; |
| enum exynos_bts_type type; |
| struct bts_table table[BS_MAX]; |
| enum bts_scen_type top_scen; |
| }; |
| |
| struct bts_scenario { |
| const char *name; |
| struct bts_info *head; |
| }; |
| |
| static struct pm_qos_request exynos_mif_bts_qos; |
| static struct pm_qos_request exynos_int_bts_qos; |
| static DEFINE_MUTEX(media_mutex); |
| |
| struct trex_info { |
| unsigned int pa_base; |
| void __iomem *va_base; |
| unsigned int value; |
| unsigned int read; |
| unsigned int write; |
| }; |
| |
| static struct trex_info trex_sci_irps[] = { |
| { .pa_base = EXYNOS8895_PA_SCI_IRPS0, }, |
| { .pa_base = EXYNOS8895_PA_SCI_IRPS1, }, |
| }; |
| |
| static struct trex_info smc_config[] = { |
| { .pa_base = EXYNOS8895_PA_SMC0, }, |
| { .pa_base = EXYNOS8895_PA_SMC1, }, |
| { .pa_base = EXYNOS8895_PA_SMC2, }, |
| { .pa_base = EXYNOS8895_PA_SMC3, }, |
| }; |
| |
| static struct trex_info trex_snode[] = { |
| { .pa_base = EXYNOS8895_PA_SN_BUSC_M0, .value = 1, }, |
| { .pa_base = EXYNOS8895_PA_SN_BUSC_M1, .value = 1, }, |
| { .pa_base = EXYNOS8895_PA_SN_BUSC_M2, .value = 1, }, |
| { .pa_base = EXYNOS8895_PA_SN_BUSC_M3, .value = 1, }, |
| }; |
| static struct trex_info trex_sci = { |
| .pa_base = EXYNOS8895_PA_SCI, |
| }; |
| |
| static struct bts_info exynos_bts[] = { |
| [BTS_IDX_CP] = { |
| .name ="cp", |
| .pa_base = EXYNOS8895_PA_CP, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0xC, |
| .table[BS_DEFAULT].stat.timeout_en = true, |
| .table[BS_DEFAULT].stat.timeout = 0x10, |
| }, |
| [BTS_IDX_DPU0] = { |
| .name ="dpu0", |
| .pa_base = EXYNOS8895_PA_DPU0, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x8, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_DPU1] = { |
| .name ="dpu1", |
| .pa_base = EXYNOS8895_PA_DPU1, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x8, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_DPU2] = { |
| .name ="dpu2", |
| .pa_base = EXYNOS8895_PA_DPU2, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x8, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_CAM0] = { |
| .name ="cam0", |
| .pa_base = EXYNOS8895_PA_CAM0, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0xA, |
| }, |
| [BTS_IDX_CAM1] = { |
| .name ="cam1", |
| .pa_base = EXYNOS8895_PA_CAM1, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0xA, |
| }, |
| [BTS_IDX_ISPLP] = { |
| .name ="isplp", |
| .pa_base = EXYNOS8895_PA_ISPLP, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0xA, |
| }, |
| [BTS_IDX_SRDZ] = { |
| .name ="srdz", |
| .pa_base = EXYNOS8895_PA_SRDZ, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| #ifndef CONFIG_SOC_EMULATOR8895 |
| [BTS_IDX_IVA] = { |
| .name ="iva", |
| .pa_base = EXYNOS8895_PA_IVA, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_DSP] = { |
| .name ="dsp", |
| .pa_base = EXYNOS8895_PA_DSP, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| #endif |
| [BTS_IDX_VPU] = { |
| .name ="vpu", |
| .pa_base = EXYNOS8895_PA_VPU, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_MFC0] = { |
| .name ="mfc0", |
| .pa_base = EXYNOS8895_PA_MFC0, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_MFC1] = { |
| .name ="mfc1", |
| .pa_base = EXYNOS8895_PA_MFC1, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G2D0] = { |
| .name ="g2d0", |
| .pa_base = EXYNOS8895_PA_G2D0, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G2D1] = { |
| .name ="g2d1", |
| .pa_base = EXYNOS8895_PA_G2D1, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G2D2] = { |
| .name ="g2d2", |
| .pa_base = EXYNOS8895_PA_G2D2, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_FSYS0] = { |
| .name ="fsys0", |
| .pa_base = EXYNOS8895_PA_FSYS0, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_PDMA] = { |
| .name ="pdma", |
| .pa_base = EXYNOS8895_PA_PDMA, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_SPDMA] = { |
| .name ="spdma", |
| .pa_base = EXYNOS8895_PA_SPDMA, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_ABOX] = { |
| .name ="abox", |
| .pa_base = EXYNOS8895_PA_ABOX, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0xC, |
| }, |
| [BTS_IDX_VTS] = { |
| .name ="vts", |
| .pa_base = EXYNOS8895_PA_VTS, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_FSYS1] = { |
| .name ="fsys1", |
| .pa_base = EXYNOS8895_PA_FSYS1, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_GNSS] = { |
| .name ="gnss", |
| .pa_base = EXYNOS8895_PA_GNSS, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_ALIVE] = { |
| .name ="alive", |
| .pa_base = EXYNOS8895_PA_ALIVE, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.rmo = 0x4, |
| .table[BS_DEFAULT].stat.wmo = 0x4, |
| .table[BS_DEFAULT].stat.max_rmo = 0x1, |
| .table[BS_DEFAULT].stat.max_wmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G3D0] = { |
| .name ="g3d0", |
| .pa_base = EXYNOS8895_PA_G3D0, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G3D1] = { |
| .name ="g3d1", |
| .pa_base = EXYNOS8895_PA_G3D1, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G3D2] = { |
| .name ="g3d1", |
| .pa_base = EXYNOS8895_PA_G3D2, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| [BTS_IDX_G3D3] = { |
| .name ="g3d1", |
| .pa_base = EXYNOS8895_PA_G3D3, |
| .type = BT_TREX, |
| .enable = true, |
| .table[BS_DEFAULT].stat.priority = 0x4, |
| .table[BS_DEFAULT].stat.busy_rmo = 0x1, |
| .table[BS_DEFAULT].stat.busy_wmo = 0x1, |
| .table[BS_DEFAULT].stat.full_rmo = 0x1, |
| .table[BS_DEFAULT].stat.full_wmo = 0x1, |
| }, |
| }; |
| |
| static struct bts_scenario bts_scen[BS_MAX] = { |
| [BS_DEFAULT] = { |
| .name = "default", |
| }, |
| [BS_G3D_PEFORMANCE] = { |
| .name = "g3d perf", |
| }, |
| }; |
| |
| static DEFINE_SPINLOCK(bts_lock); |
| static DEFINE_SPINLOCK(qmax_lock); |
| static DEFINE_SPINLOCK(tq_lock); |
| |
| static void bts_set_ip_table(struct bts_info *bts) |
| { |
| enum bts_scen_type scen = bts->top_scen; |
| |
| BTS_DBG("[BTS] %s bts scen: [%s]->[%s]\n", bts->name, |
| bts_scen[scen].name, bts_scen[scen].name); |
| |
| switch (bts->type) { |
| case BT_TREX: |
| bts_setqos(bts->va_base, &bts->table[scen].stat); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void bts_add_scen(enum bts_scen_type scen) |
| { |
| struct bts_info *first = bts_scen[scen].head; |
| struct bts_info *bts = bts_scen[scen].head; |
| int next = 0; |
| int prev = 0; |
| |
| if (!bts) |
| return; |
| |
| BTS_DBG("[BTS] scen %s on\n", bts_scen[scen].name); |
| |
| do { |
| if (bts->enable &&!bts->table[scen].next_scen) { |
| if (scen >= bts->top_scen) { |
| /* insert at top priority */ |
| bts->table[scen].prev_scen = bts->top_scen; |
| bts->table[bts->top_scen].next_scen = scen; |
| bts->top_scen = scen; |
| bts->table[scen].next_scen = -1; |
| |
| bts_set_ip_table(bts); |
| |
| } else { |
| /* insert at middle */ |
| for (prev = bts->top_scen; prev > scen; |
| prev = bts->table[prev].prev_scen) |
| next = prev; |
| |
| bts->table[scen].prev_scen = |
| bts->table[next].prev_scen; |
| bts->table[scen].next_scen = |
| bts->table[prev].next_scen; |
| bts->table[next].prev_scen = scen; |
| bts->table[prev].next_scen = scen; |
| } |
| } |
| |
| bts = bts->table[scen].next_bts; |
| /* set all bts ip in the current scenario */ |
| } while (bts && bts != first); |
| } |
| |
| static void bts_del_scen(enum bts_scen_type scen) |
| { |
| struct bts_info *first = bts_scen[scen].head; |
| struct bts_info *bts = bts_scen[scen].head; |
| int next = 0; |
| int prev = 0; |
| |
| if (!bts) |
| return; |
| |
| BTS_DBG("[BTS] scen %s off\n", bts_scen[scen].name); |
| |
| do { |
| if (bts->enable && bts->table[scen].next_scen) { |
| if (scen == bts->top_scen) { |
| /* revert to prev scenario */ |
| prev = bts->table[scen].prev_scen; |
| bts->top_scen = prev; |
| bts->table[prev].next_scen = -1; |
| bts->table[scen].next_scen = 0; |
| bts->table[scen].prev_scen = 0; |
| |
| bts_set_ip_table(bts); |
| } else if (scen < bts->top_scen) { |
| /* delete mid scenario */ |
| prev = bts->table[scen].prev_scen; |
| next = bts->table[scen].next_scen; |
| |
| bts->table[next].prev_scen = |
| bts->table[scen].prev_scen; |
| bts->table[prev].next_scen = |
| bts->table[scen].next_scen; |
| |
| bts->table[scen].prev_scen = 0; |
| bts->table[scen].next_scen = 0; |
| |
| } else { |
| BTS_DBG("[BTS]%s scenario couldn't \ |
| exist above top_scen\n", |
| bts_scen[scen].name); |
| } |
| } |
| |
| bts = bts->table[scen].next_bts; |
| /* revert all bts ip to prev in the current scenario */ |
| } while (bts && bts != first); |
| } |
| |
| static unsigned int find_tq(unsigned int freq) |
| { |
| int i; |
| unsigned int ret; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&tq_lock, flags); |
| |
| for (i = 0; i < exynos_ntq - 1 && |
| freq <= exynos_tq[i+1]; i += 2) |
| ; |
| |
| ret = exynos_tq[i]; |
| spin_unlock_irqrestore(&tq_lock, flags); |
| return ret; |
| } |
| |
| static void find_qmax(unsigned int freq, unsigned int *read_mo, |
| unsigned int *write_mo) |
| { |
| int i; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&qmax_lock, flags); |
| |
| for (i = 0; i < exynos_nqmax_r - 1 && |
| freq <= exynos_qmax_r[i+1]; i += 2) |
| ; |
| *read_mo = exynos_qmax_r[i]; |
| for (i = 0; i < exynos_nqmax_w - 1 && |
| freq <= exynos_qmax_w[i+1]; i += 2) |
| ; |
| *write_mo = exynos_qmax_w[i]; |
| spin_unlock_irqrestore(&qmax_lock, flags); |
| } |
| |
| static void exynos_bts_mif_update(unsigned int freq) |
| { |
| int i; |
| unsigned int read_mo; |
| unsigned int write_mo; |
| unsigned int tq; |
| find_qmax(freq, &read_mo, &write_mo); |
| for (i = 0; i < ARRAY_SIZE(trex_snode); i++) |
| if (trex_snode[i].read != read_mo || |
| trex_snode[i].write != write_mo) { |
| bts_set_qmax(trex_snode[i].va_base, |
| read_mo * trex_snode[i].value, |
| write_mo * trex_snode[i].value); |
| trex_snode[i].read = read_mo; |
| trex_snode[i].write = write_mo; |
| } |
| tq = find_tq(freq); |
| if (trex_sci.value != tq) { |
| bts_set_tq(trex_sci.va_base, tq); |
| trex_sci.value = tq; |
| } |
| exynos_mif_freq = freq; |
| } |
| |
| void bts_update_scen(enum bts_scen_type scen, unsigned int val) |
| { |
| bool on = val ? 1 : 0; |
| int i; |
| |
| if (scen <= BS_DEFAULT || scen >= BS_MAX) |
| return; |
| |
| switch (scen) { |
| case BS_MIF_CHANGE: |
| exynos_bts_mif_update(val); |
| break; |
| case BS_MFC_UHD: |
| case BS_G3D_PEFORMANCE: |
| break; |
| case BS_CAMERA_DEFAULT: |
| if (on) { |
| exynos_qbusy = 4; |
| exynos_qfull_low = 0xa; |
| exynos_qfull_high = 0x10; |
| } else { |
| exynos_qbusy = QBUSY_DEFAULT; |
| exynos_qfull_low = QFULL_LOW_DEFAULT; |
| exynos_qfull_high = QFULL_HIGH_DEFAULT; |
| } |
| bts_set_qfull(trex_sci.va_base, exynos_qfull_low, |
| exynos_qfull_high); |
| for (i = 0; i < ARRAY_SIZE(smc_config); i++) |
| bts_set_qbusy(smc_config[i].va_base, exynos_qbusy); |
| break; |
| default: |
| spin_lock(&bts_lock); |
| if (on) |
| bts_add_scen(scen); |
| else |
| bts_del_scen(scen); |
| spin_unlock(&bts_lock); |
| break; |
| } |
| } |
| |
| static void scen_chaining(enum bts_scen_type scen) |
| { |
| struct bts_info *prev = NULL; |
| struct bts_info *first = NULL; |
| struct bts_info *bts; |
| |
| for (bts = exynos_bts; |
| bts <= &exynos_bts[ARRAY_SIZE(exynos_bts) - 1]; bts++) { |
| if (bts->table[scen].stat.priority) { |
| if (!first) |
| first = bts; |
| if (prev) |
| prev->table[scen].next_bts = bts; |
| |
| prev = bts; |
| } |
| } |
| |
| if (prev) |
| prev->table[scen].next_bts = first; |
| |
| bts_scen[scen].head = first; |
| } |
| |
| static unsigned int *get_tokenized_data(const char *buf, int *num_tokens) |
| { |
| const char *cp; |
| int i; |
| int ntokens = 1; |
| unsigned int *tokenized_data; |
| int err = -EINVAL; |
| |
| cp = buf; |
| while ((cp = strpbrk(cp + 1, " :"))) |
| ntokens++; |
| |
| if (!(ntokens & 0x1)) |
| goto err; |
| |
| tokenized_data = kmalloc(ntokens * sizeof(unsigned int), GFP_KERNEL); |
| if (!tokenized_data) { |
| err = -ENOMEM; |
| goto err; |
| } |
| |
| cp = buf; |
| i = 0; |
| while (i < ntokens) { |
| if (*cp == '0' && (*(cp + 1) == 'x' || *(cp + 1) == 'X')) { |
| if (sscanf(cp, "%x", &tokenized_data[i++]) != 1) |
| goto err_kfree; |
| } else { |
| if (sscanf(cp, "%u", &tokenized_data[i++]) != 1) |
| goto err_kfree; |
| } |
| |
| cp = strpbrk(cp, " :"); |
| if (!cp) |
| break; |
| cp++; |
| } |
| |
| if (i != ntokens) |
| goto err_kfree; |
| |
| *num_tokens = ntokens; |
| return tokenized_data; |
| |
| err_kfree: |
| kfree(tokenized_data); |
| err: |
| return ERR_PTR(err); |
| } |
| |
| static int exynos_qos_status_open_show(struct seq_file *buf, void *d) |
| { |
| struct bts_info *bts; |
| |
| spin_lock(&bts_lock); |
| |
| for (bts = exynos_bts; |
| bts <= &exynos_bts[ARRAY_SIZE(exynos_bts) - 1]; bts++) { |
| if (!bts->enable) |
| continue; |
| seq_printf(buf, "%5s(%s): ", bts->name, |
| bts_scen[bts->top_scen].name); |
| switch (bts->type) { |
| case BT_TREX: |
| bts_showqos(bts->va_base, buf); |
| break; |
| default: |
| seq_puts(buf, "none\n"); |
| } |
| } |
| |
| spin_unlock(&bts_lock); |
| |
| return 0; |
| } |
| |
| static int exynos_qos_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, exynos_qos_status_open_show, inode->i_private); |
| } |
| |
| static const struct file_operations debug_qos_status_fops = { |
| .open = exynos_qos_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static int exynos_tq_status_open_show(struct seq_file *buf, void *d) |
| { |
| int i; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&tq_lock, flags); |
| for (i = 0; i < exynos_ntq; i++) { |
| seq_printf(buf, "%u%s", exynos_tq[i], |
| i & 0x1 ? ":" : " "); |
| } |
| seq_printf(buf, "\n"); |
| spin_unlock_irqrestore(&tq_lock, flags); |
| |
| return 0; |
| } |
| |
| static int exynos_tq_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, exynos_tq_status_open_show, inode->i_private); |
| } |
| |
| static ssize_t exynos_tq_write(struct file *file, const char __user *buf, size_t count, |
| loff_t *f_pos) |
| { |
| int ntokens; |
| unsigned int *new_tq = NULL; |
| unsigned long flags; |
| |
| new_tq = get_tokenized_data(buf, &ntokens); |
| if (IS_ERR(new_tq)) |
| return PTR_RET(new_tq); |
| |
| spin_lock_irqsave(&tq_lock, flags); |
| if (exynos_tq != default_exynos_tq) |
| kfree(exynos_tq); |
| exynos_tq = new_tq; |
| exynos_ntq = ntokens; |
| spin_unlock_irqrestore(&tq_lock, flags); |
| |
| exynos_bts_mif_update(exynos_mif_freq); |
| return count; |
| } |
| |
| static const struct file_operations debug_tq_status_fops = { |
| .open = exynos_tq_open, |
| .write = exynos_tq_write, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static int exynos_qmax_r_status_open_show(struct seq_file *buf, void *d) |
| { |
| int i; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&qmax_lock, flags); |
| for (i = 0; i < exynos_nqmax_r; i++) { |
| if (i & 0x1) |
| seq_printf(buf, "%u%s", exynos_qmax_r[i], |
| ":"); |
| else |
| seq_printf(buf, "0x%x%s", exynos_qmax_r[i], |
| " "); |
| } |
| seq_printf(buf, "\n"); |
| spin_unlock_irqrestore(&qmax_lock, flags); |
| |
| return 0; |
| } |
| |
| static int exynos_qmax_r_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, exynos_qmax_r_status_open_show, inode->i_private); |
| } |
| |
| static ssize_t exynos_qmax_r_write(struct file *file, const char __user *buf, size_t count, |
| loff_t *f_pos) |
| { |
| int ntokens; |
| unsigned int *new_qmax = NULL; |
| unsigned long flags; |
| |
| new_qmax = get_tokenized_data(buf, &ntokens); |
| if (IS_ERR(new_qmax)) |
| return PTR_RET(new_qmax); |
| |
| spin_lock_irqsave(&qmax_lock, flags); |
| if (exynos_qmax_r != default_exynos_qmax_r) |
| kfree(exynos_qmax_r); |
| exynos_qmax_r = new_qmax; |
| exynos_nqmax_r = ntokens; |
| spin_unlock_irqrestore(&qmax_lock, flags); |
| |
| exynos_bts_mif_update(exynos_mif_freq); |
| return count; |
| } |
| |
| static const struct file_operations debug_qmax_read_status_fops = { |
| .open = exynos_qmax_r_open, |
| .write = exynos_qmax_r_write, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static int exynos_qmax_w_status_open_show(struct seq_file *buf, void *d) |
| { |
| int i; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&qmax_lock, flags); |
| for (i = 0; i < exynos_nqmax_w; i++) { |
| if (i & 0x1) |
| seq_printf(buf, "%u%s", exynos_qmax_w[i], |
| ":"); |
| else |
| seq_printf(buf, "0x%x%s", exynos_qmax_w[i], |
| " "); |
| } |
| seq_printf(buf, "\n"); |
| spin_unlock_irqrestore(&qmax_lock, flags); |
| |
| return 0; |
| } |
| |
| static int exynos_qmax_w_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, exynos_qmax_w_status_open_show, inode->i_private); |
| } |
| |
| static ssize_t exynos_qmax_w_write(struct file *file, const char __user *buf, size_t count, |
| loff_t *f_pos) |
| { |
| int ntokens; |
| unsigned int *new_qmax = NULL; |
| unsigned long flags; |
| |
| new_qmax = get_tokenized_data(buf, &ntokens); |
| if (IS_ERR(new_qmax)) |
| return PTR_RET(new_qmax); |
| |
| spin_lock_irqsave(&qmax_lock, flags); |
| if (exynos_qmax_w != default_exynos_qmax_w) |
| kfree(exynos_qmax_w); |
| exynos_qmax_w = new_qmax; |
| exynos_nqmax_w = ntokens; |
| spin_unlock_irqrestore(&qmax_lock, flags); |
| |
| exynos_bts_mif_update(exynos_mif_freq); |
| return count; |
| } |
| |
| static const struct file_operations debug_qmax_write_status_fops = { |
| .open = exynos_qmax_w_open, |
| .write = exynos_qmax_w_write, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static int exynos_qbusy_status_open_show(struct seq_file *buf, void *d) |
| { |
| seq_printf(buf, "%u\n", exynos_qbusy); |
| return 0; |
| } |
| |
| static int exynos_qbusy_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, exynos_qbusy_status_open_show, inode->i_private); |
| } |
| |
| static ssize_t exynos_qbusy_write(struct file *file, const char __user *buf, size_t count, |
| loff_t *f_pos) |
| { |
| int i; |
| if (sscanf(buf, "%u", &exynos_qbusy) != 1) |
| return count; |
| |
| for (i = 0; i < ARRAY_SIZE(smc_config); i++) |
| bts_set_qbusy(smc_config[i].va_base, exynos_qbusy); |
| return count; |
| } |
| |
| static const struct file_operations debug_qbusy_status_fops = { |
| .open = exynos_qbusy_open, |
| .write = exynos_qbusy_write, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static void bts_debugfs(void) |
| { |
| struct dentry *den; |
| |
| den = debugfs_create_dir("bts", NULL); |
| debugfs_create_file("qos", 0440, den, NULL, &debug_qos_status_fops); |
| debugfs_create_file("qmax_read", 0440, den, NULL, |
| &debug_qmax_read_status_fops); |
| debugfs_create_file("qmax_write", 0440, den, NULL, |
| &debug_qmax_write_status_fops); |
| debugfs_create_file("qbusy", 0440, den, NULL, |
| &debug_qbusy_status_fops); |
| debugfs_create_file("tq", 0440, den, NULL, &debug_tq_status_fops); |
| if (!debugfs_create_u32("log", 0644, den, &exynos_bts_log)) { |
| pr_err("[BTS]: could't create debugfs bts log\n"); |
| } |
| if (!debugfs_create_u32("mif_util", 0644, den, &exynos_mif_util)) { |
| pr_err("[BTS]: could't create debugfs mif util\n"); |
| } |
| if (!debugfs_create_u32("int_util", 0644, den, &exynos_int_util)) { |
| pr_err("[BTS]: could't create debugfs int util\n"); |
| } |
| } |
| |
| static void bts_initialize_domains(void) |
| { |
| unsigned long i; |
| struct bts_info *bts; |
| |
| bts_set_qfull(trex_sci.va_base, exynos_qfull_low, exynos_qfull_high); |
| for (i = 0; i < ARRAY_SIZE(smc_config); i++) |
| bts_set_qbusy(smc_config[i].va_base, exynos_qbusy); |
| for (i = 0; i < ARRAY_SIZE(trex_sci_irps); i++) |
| bts_trex_init(trex_sci_irps[i].va_base); |
| spin_lock(&bts_lock); |
| for (bts = exynos_bts; |
| bts <= &exynos_bts[ARRAY_SIZE(exynos_bts) - 1]; bts++) { |
| if (!bts->enable) |
| continue; |
| bts_set_ip_table(bts); |
| } |
| spin_unlock(&bts_lock); |
| exynos_bts_mif_update(exynos_mif_freq); |
| } |
| |
| static int exynos_bts_notifier_event(struct notifier_block *this, |
| unsigned long event, |
| void *ptr) |
| { |
| |
| switch ((unsigned int)event) { |
| case PM_POST_SUSPEND: |
| bts_initialize_domains(); |
| return NOTIFY_OK; |
| break; |
| case PM_SUSPEND_PREPARE: |
| return NOTIFY_OK; |
| break; |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block exynos_bts_notifier = { |
| .notifier_call = exynos_bts_notifier_event, |
| }; |
| |
| #define BIT_PER_BYTE 8 |
| |
| static unsigned int bts_bw_calc(struct bts_dpp_info *dpp, unsigned int vclk) |
| { |
| unsigned int bw; |
| unsigned int dst_w, dst_h; |
| |
| dst_w = dpp->dst.x2 - dpp->dst.x1; |
| dst_h = dpp->dst.y2 - dpp->dst.y1; |
| if (!(dst_w && dst_h)) |
| return 0; |
| /* use multifactor for KB/s */ |
| bw = ((u64)dpp->src_h * dpp->src_w * dpp->bpp * vclk) / |
| (BIT_PER_BYTE * dst_h * dst_w); |
| return bw; |
| } |
| |
| static unsigned int bts_find_max_bw(struct bts_decon_info *decon, |
| const struct bts_layer_position *input, int idx) |
| { |
| struct bts_layer_position output; |
| struct bts_dpp_info *dpp; |
| unsigned int max = 0; |
| int i; |
| |
| for (i = idx; i < BTS_DPP_MAX; i++) { |
| dpp = &decon->dpp[i]; |
| if (!dpp->used) |
| continue; |
| output.y1 = input->y1 < dpp->dst.y1 ? dpp->dst.y1 : input->y1; |
| output.y2 = input->y2 > dpp->dst.y2 ? dpp->dst.y2 : input->y2; |
| output.x1 = input->x1 < dpp->dst.x1 ? dpp->dst.x1 : input->x1; |
| output.x2 = input->x2 > dpp->dst.x2 ? dpp->dst.x2 : input->x2; |
| if (output.y1 < output.y2 && output.x1 < output.x2) { |
| unsigned int bw; |
| bw = dpp->bw + bts_find_max_bw(decon, &output, i + 1); |
| if (bw > max) |
| max = bw; |
| } |
| } |
| return max; |
| |
| } |
| |
| static unsigned int bts_update_decon_bw(struct bts_decon_info *decon) |
| { |
| unsigned int max = 0; |
| struct bts_dpp_info *dpp; |
| int i; |
| |
| for (i = 0; i < BTS_DPP_MAX; i++) { |
| dpp = &decon->dpp[i]; |
| if (!dpp->used) |
| continue; |
| dpp->bw = bts_bw_calc(&decon->dpp[i], decon->vclk); |
| } |
| for (i = 0; i < BTS_DPP_MAX; i++) { |
| unsigned int bw; |
| dpp = &decon->dpp[i]; |
| if (!dpp->used) |
| continue; |
| bw = dpp->bw + bts_find_max_bw(decon, &dpp->dst, i + 1); |
| if (bw > max) |
| max = bw; |
| } |
| |
| return max; |
| } |
| |
| unsigned int bts_calc_bw(enum bts_bw_type type, void *data) |
| { |
| unsigned int bw; |
| |
| switch (type) { |
| case BTS_BW_DECON0: |
| case BTS_BW_DECON1: |
| case BTS_BW_DECON2: |
| bw = bts_update_decon_bw(data); |
| break; |
| default: |
| bw = 0; |
| break; |
| } |
| |
| return bw; |
| } |
| |
| void bts_update_bw(enum bts_bw_type type, unsigned int bw) |
| { |
| static unsigned int bts_bw[BTS_BW_MAX]; |
| unsigned int mif_freq; |
| unsigned int int_freq; |
| unsigned int total_bw = 0; |
| unsigned int bw_r = 0; |
| unsigned int bw_w = 0; |
| int i; |
| |
| if (type >= BTS_BW_MAX) |
| return; |
| |
| mutex_lock(&media_mutex); |
| |
| if (bw == bts_bw[type]) { |
| mutex_unlock(&media_mutex); |
| return; |
| } |
| |
| bts_bw[type] = bw; |
| for (i = 0; i < BTS_BW_MAX; i++) { |
| if (i < BTS_BW_W) |
| bw_r += bts_bw[i]; |
| else |
| bw_w += bts_bw[i]; |
| total_bw += bts_bw[i]; |
| } |
| |
| /* MIF minimum frequency calculation as per BTS guide */ |
| mif_freq = total_bw * 100 / BUS_WIDTH / exynos_mif_util; |
| int_freq = (bw_w < bw_r ? bw_r : bw_w) * 100 / BUS_WIDTH / exynos_int_util; |
| |
| pm_qos_update_request(&exynos_mif_bts_qos, mif_freq); |
| pm_qos_update_request(&exynos_int_bts_qos, int_freq); |
| |
| BTS_DBG("[BTS] BW(KB/s): bw%i %u total %u, read %u, write %u, " |
| "freq(Khz): mif %u, int %u\n", |
| type, bw, total_bw, bw_r, bw_w, mif_freq, int_freq); |
| |
| mutex_unlock(&media_mutex); |
| } |
| |
| static int __init exynos_bts_init(void) |
| { |
| int i; |
| struct bts_info *bts; |
| |
| for (bts = exynos_bts; |
| bts <= &exynos_bts[ARRAY_SIZE(exynos_bts) - 1]; bts++) { |
| bts->va_base = ioremap(bts->pa_base, SZ_2K); |
| if (!bts->va_base) { |
| pr_err("failed to map bts physical address\n"); |
| bts->enable = false; |
| } |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(trex_sci_irps); i++) { |
| trex_sci_irps[i].va_base = ioremap(trex_sci_irps[i].pa_base, |
| SZ_4K); |
| if (!trex_sci_irps[i].va_base) { |
| pr_err("failed to map trex irp-s physical address\n"); |
| } |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(smc_config); i++) { |
| smc_config[i].va_base = ioremap(smc_config[i].pa_base, |
| SZ_4K); |
| if (!smc_config[i].va_base) { |
| pr_err("failed to map smc physical address\n"); |
| } |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(trex_snode); i++) { |
| trex_snode[i].va_base = ioremap(trex_snode[i].pa_base, |
| SZ_1K); |
| if (!trex_snode[i].va_base) { |
| pr_err("failed to map trex snode physical address\n"); |
| } |
| } |
| trex_sci.va_base = ioremap(trex_sci.pa_base, |
| SZ_1K); |
| if (!trex_sci.va_base) { |
| pr_err("failed to map sci physical address\n"); |
| } |
| |
| for (i = BS_DEFAULT + 1; i < BS_MAX; i++) { |
| scen_chaining(i); |
| } |
| exynos_tq = default_exynos_tq; |
| exynos_ntq = ARRAY_SIZE(default_exynos_tq); |
| exynos_qmax_r = default_exynos_qmax_r; |
| exynos_nqmax_r = ARRAY_SIZE(default_exynos_qmax_r); |
| exynos_qmax_w = default_exynos_qmax_w; |
| exynos_nqmax_w = ARRAY_SIZE(default_exynos_qmax_w); |
| |
| bts_initialize_domains(); |
| |
| pm_qos_add_request(&exynos_mif_bts_qos, PM_QOS_BUS_THROUGHPUT, 0); |
| pm_qos_add_request(&exynos_int_bts_qos, PM_QOS_DEVICE_THROUGHPUT, 0); |
| |
| register_pm_notifier(&exynos_bts_notifier); |
| bts_debugfs(); |
| pr_info("BTS: driver is initialized\n"); |
| return 0; |
| } |
| arch_initcall(exynos_bts_init); |