static int tegra3_get_core_floor_mv(int cpu_mv)
{
#if 0
if (cpu_mv < 800)
return 950;
if (cpu_mv < 900)
return 1000;
if (cpu_mv < 1000)
return 1100;
if ((tegra_cpu_speedo_id() < 2) ||
(tegra_cpu_speedo_id() == 4) ||
(tegra_cpu_speedo_id() == 7) ||
(tegra_cpu_speedo_id() == 8))
return 1200;
if (cpu_mv < 1100)
return 1200;
if (cpu_mv <= 1250)
return 1300;
#endif
int i;
for (i=0; i<ARRAY_SIZE(core_millivolts) && core_millivolts[i] < cpu_mv; i++);
if (i<ARRAY_SIZE(core_millivolts)){
return core_millivolts[i];
}
/* fail-safe */
if (cpu_mv <= VDD_CPU_MAX)
return 1300;
BUG();
}
static int tegra3_get_core_floor_mv(int cpu_mv)
{
if (cpu_mv <= 825)
return 1000;
if (cpu_mv <= 975)
return 1100;
if ((tegra_cpu_speedo_id() < 2) ||
(tegra_cpu_speedo_id() == 4))
return 1200;
if (cpu_mv <= 1075)
return 1200;
if (cpu_mv <= 1250)
return 1300;
BUG();
}
static bool __init is_pllm_dvfs(struct clk *c, struct dvfs *d)
{
#ifdef CONFIG_TEGRA_PLLM_RESTRICTED
/* Do not apply common PLLM dvfs table on T30 and T33, rev A02+ and
do not apply restricted PLLM dvfs table for other SKUs/revs */
if (((tegra_cpu_speedo_id() == 2) || (tegra_cpu_speedo_id() == 5)) ==
(d->speedo_id == -1))
return false;
#endif
/* Check if PLLM boot frequency can be applied to clock tree at
minimum voltage. If yes, no need to enable dvfs on PLLM */
if (clk_get_rate_all_locked(c) <= d->freqs[0] * d->freqs_mult)
return false;
return true;
}
static bool __init is_pllm_dvfs(struct clk *c, struct dvfs *d)
{
#ifdef CONFIG_TEGRA_PLLM_RESTRICTED
/* Restricting PLLM usage on T30 and T33, rev A02+, allows to apply
maximum PLLM frequency to clock tree at minimum core voltage;
no need to enable dvfs on PLLM in this case */
if ((tegra_cpu_speedo_id() == 2) || (tegra_cpu_speedo_id() == 5))
return false;
#endif
/* Check if PLLM boot frequency can be applied to clock tree at
minimum voltage. If yes, no need to enable dvfs on PLLM */
if (clk_get_rate_all_locked(c) <= d->freqs[0] * d->freqs_mult)
return false;
return true;
}
void tegra_init_cache(bool init)
{
#ifdef CONFIG_TRUSTED_FOUNDATIONS
/* enable/re-enable of L2 handled by secureos */
return tegra_init_cache_tz(init);
#else
void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
u32 aux_ctrl;
#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
writel_relaxed(0x331, p + L2X0_TAG_LATENCY_CTRL);
writel_relaxed(0x441, p + L2X0_DATA_LATENCY_CTRL);
#elif defined(CONFIG_ARCH_TEGRA_3x_SOC)
#ifdef CONFIG_TEGRA_SILICON_PLATFORM
/* PL310 RAM latency is CPU dependent. NOTE: Changes here
must also be reflected in __cortex_a9_l2x0_restart */
if (is_lp_cluster()) {
writel(0x221, p + L2X0_TAG_LATENCY_CTRL);
writel(0x221, p + L2X0_DATA_LATENCY_CTRL);
} else {
u32 speedo;
/* relax l2-cache latency for speedos 4,5,6 (T33's chips) */
speedo = tegra_cpu_speedo_id();
if (speedo == 4 || speedo == 5 || speedo == 6 ||
speedo == 12 || speedo == 13) {
writel(0x442, p + L2X0_TAG_LATENCY_CTRL);
writel(0x552, p + L2X0_DATA_LATENCY_CTRL);
} else {
writel(0x441, p + L2X0_TAG_LATENCY_CTRL);
writel(0x551, p + L2X0_DATA_LATENCY_CTRL);
}
}
#else
writel(0x770, p + L2X0_TAG_LATENCY_CTRL);
writel(0x770, p + L2X0_DATA_LATENCY_CTRL);
#endif
#endif
writel(0x3, p + L2X0_POWER_CTRL);
aux_ctrl = readl(p + L2X0_CACHE_TYPE);
aux_ctrl = (aux_ctrl & 0x700) << (17-8);
aux_ctrl |= 0x7C000001;
if (init) {
l2x0_init(p, aux_ctrl, 0x8200c3fe);
/* use our outer_disable() routine to avoid flush */
outer_cache.disable = tegra_l2x0_disable;
} else {
u32 tmp;
tmp = aux_ctrl;
aux_ctrl = readl(p + L2X0_AUX_CTRL);
aux_ctrl &= 0x8200c3fe;
aux_ctrl |= tmp;
writel(aux_ctrl, p + L2X0_AUX_CTRL);
}
l2x0_enable();
#endif
}
static int tegra3_get_core_floor_mv(int cpu_mv)
{
if (cpu_mv < 800)
return 950;
if (cpu_mv < 1000)
return 1100;
if ((tegra_cpu_speedo_id() < 2) ||
(tegra_cpu_speedo_id() == 4) ||
(tegra_cpu_speedo_id() == 7) ||
(tegra_cpu_speedo_id() == 8))
return 1200;
if (cpu_mv < 1100)
return 1200;
if (cpu_mv <= 1250)
return 1300;
BUG();
}
/**
* Adjust VDD_CPU to offset aging.
* 25mV for 1st year
* 12mV for 2nd and 3rd year
* 0mV for 4th year onwards
*/
void tegra_dvfs_age_cpu(int cur_linear_age)
{
int chip_linear_age;
int chip_life;
chip_linear_age = tegra_get_age();
chip_life = cur_linear_age - chip_linear_age;
/*For T37 and AP37*/
if (tegra_cpu_speedo_id() == 12 || tegra_cpu_speedo_id() == 13) {
if (chip_linear_age <= 0) {
return;
} else if (chip_life <= 12) {
tegra_adjust_cpu_mvs(25);
} else if (chip_life <= 36) {
tegra_adjust_cpu_mvs(13);
}
}
}
/*
* Specify regulator current in mA, e.g. 5000mA
* Use 0 for default
*/
void __init tegra_init_cpu_edp_limits(unsigned int regulator_mA)
{
int cpu_speedo_id = tegra_cpu_speedo_id();
int i, j;
struct tegra_edp_limits *e;
struct tegra_edp_entry *t = (struct tegra_edp_entry *)tegra_edp_map;
int tsize = sizeof(tegra_edp_map)/sizeof(struct tegra_edp_entry);
if (!regulator_mA) {
edp_limits = edp_default_limits;
edp_limits_size = ARRAY_SIZE(edp_default_limits);
return;
}
regulator_cur = regulator_mA;
for (i = 0; i < tsize; i++) {
if (t[i].speedo_id == cpu_speedo_id &&
t[i].regulator_100mA <= regulator_mA / 100)
break;
}
/* No entry found in tegra_edp_map */
if (i >= tsize) {
edp_limits = edp_default_limits;
edp_limits_size = ARRAY_SIZE(edp_default_limits);
return;
}
/* Find all rows for this entry */
for (j = i + 1; j < tsize; j++) {
if (t[i].speedo_id != t[j].speedo_id ||
t[i].regulator_100mA != t[j].regulator_100mA)
break;
}
edp_limits_size = j - i;
e = kmalloc(sizeof(struct tegra_edp_limits) * edp_limits_size,
GFP_KERNEL);
BUG_ON(!e);
for (j = 0; j < edp_limits_size; j++) {
e[j].temperature = (int)t[i+j].temperature;
#ifdef CONFIG_TEGRA3_GAMING_FIX
e[j].freq_limits[0] = (unsigned int)(t[i+j].freq_limits[0]-GAMING_REDUCTION_FREQ) * 10000;
#else
e[j].freq_limits[0] = (unsigned int)t[i+j].freq_limits[0] * 10000;
#endif
e[j].freq_limits[1] = (unsigned int)t[i+j].freq_limits[1] * 10000;
e[j].freq_limits[2] = (unsigned int)t[i+j].freq_limits[2] * 10000;
e[j].freq_limits[3] = (unsigned int)t[i+j].freq_limits[3] * 10000;
}
if (edp_limits != edp_default_limits)
kfree(edp_limits);
edp_limits = e;
}
static int tegra3_get_core_floor_mv(int cpu_mv)
{
if (cpu_mv < 800)
return core_millivolts[0];
if (cpu_mv < 900)
return core_millivolts[1];
if (cpu_mv < 1000)
return core_millivolts[3];
if ((tegra_cpu_speedo_id() < 2) ||
(tegra_cpu_speedo_id() == 4) ||
(tegra_cpu_speedo_id() == 7) ||
(tegra_cpu_speedo_id() == 8))
return core_millivolts[5];
if (cpu_mv < 1100)
return core_millivolts[5];
if (cpu_mv <= 1250)
return core_millivolts[7];
BUG();
}
static int t3_variant_debugfs_show(struct seq_file *s, void *data)
{
int cpu_speedo_id = tegra_cpu_speedo_id();
int soc_speedo_id = tegra_soc_speedo_id();
int cpu_process_id = tegra_cpu_process_id();
int core_process_id = tegra_core_process_id();
seq_printf(s, "cpu_speedo_id => %d\n", cpu_speedo_id);
seq_printf(s, "soc_speedo_id => %d\n", soc_speedo_id);
seq_printf(s, "cpu_process_id => %d\n", cpu_process_id);
seq_printf(s, "core_process_id => %d\n", core_process_id);
return 0;
}
static int __init init_cpu_edp_limits_lookup(void)
{
int i, j;
struct tegra_edp_limits *e;
struct tegra_edp_vdd_cpu_entry *t;
int tsize;
int cpu_speedo_id = tegra_cpu_speedo_id();
t = (struct tegra_edp_vdd_cpu_entry *)tegra_edp_vdd_cpu_map;
tsize = sizeof(tegra_edp_vdd_cpu_map)
/ sizeof(struct tegra_edp_vdd_cpu_entry);
for (i = 0; i < tsize; i++) {
if (t[i].speedo_id == cpu_speedo_id &&
t[i].regulator_100mA <= regulator_cur / 100)
break;
}
/* No entry found in tegra_edp_vdd_cpu_map */
if (i >= tsize)
return -EINVAL;
/* Find all rows for this entry */
for (j = i + 1; j < tsize; j++) {
if (t[i].speedo_id != t[j].speedo_id ||
t[i].regulator_100mA != t[j].regulator_100mA)
break;
}
edp_limits_size = j - i;
e = kmalloc(sizeof(struct tegra_edp_limits) * edp_limits_size,
GFP_KERNEL);
BUG_ON(!e);
for (j = 0; j < edp_limits_size; j++) {
e[j].temperature = (int)t[i+j].temperature;
e[j].freq_limits[0] = (unsigned int)t[i+j].freq_limits[0]*10000;
e[j].freq_limits[1] = (unsigned int)t[i+j].freq_limits[1]*10000;
e[j].freq_limits[2] = (unsigned int)t[i+j].freq_limits[2]*10000;
e[j].freq_limits[3] = (unsigned int)t[i+j].freq_limits[3]*10000;
}
if (edp_limits != edp_default_limits)
kfree(edp_limits);
edp_limits = e;
return 0;
}
void __init tegra_init_system_edp_limits(unsigned int power_limit_mW)
{
int cpu_speedo_id = tegra_cpu_speedo_id();
int i;
unsigned int *e;
struct system_edp_entry *t =
(struct system_edp_entry *)tegra_system_edp_map;
int tsize = sizeof(tegra_system_edp_map) /
sizeof(struct system_edp_entry);
if (!power_limit_mW) {
e = NULL;
goto out;
}
for (i = 0; i < tsize; i++)
if (t[i].speedo_id == cpu_speedo_id)
break;
if (i >= tsize) {
e = NULL;
goto out;
}
do {
if (t[i].power_limit_100mW <= power_limit_mW / 100)
break;
i++;
} while (i < tsize && t[i].speedo_id == cpu_speedo_id);
if (i >= tsize || t[i].speedo_id != cpu_speedo_id)
i--; /* No low enough entry in the table, use best possible */
e = kmalloc(sizeof(unsigned int) * 4, GFP_KERNEL);
BUG_ON(!e);
e[0] = (unsigned int)t[i].freq_limits[0] * 10000;
e[1] = (unsigned int)t[i].freq_limits[1] * 10000;
e[2] = (unsigned int)t[i].freq_limits[2] * 10000;
e[3] = (unsigned int)t[i].freq_limits[3] * 10000;
out:
kfree(system_edp_limits);
system_edp_limits = e;
}
static int tegra3_get_core_floor_mv(int cpu_mv)
{
if (cpu_mv <= 800)
return 950;
if (cpu_mv <= 900)
return 1000;
if (cpu_mv <= 1000)
return 1100;
if ((tegra_cpu_speedo_id() == 4))
return 1200;
if (cpu_mv <= 1100)
return 1200;
if (cpu_mv <= 1250)
return 1300;
if (cpu_mv <= 1325)
return 1350;
if (cpu_mv <= 1375)
return 1400;
BUG();
}
struct tegra_sysedp_corecap *tegra_get_sysedp_corecap(unsigned int *sz)
{
int cpu_speedo_id;
int gpu_speedo_id;
BUG_ON(sz == NULL);
cpu_speedo_id = tegra_cpu_speedo_id();
gpu_speedo_id = tegra_gpu_speedo_id();
switch (cpu_speedo_id) {
case 0x5:
case 0x2:
if (gpu_speedo_id == 1) {
/* 575 variants */
*sz = ARRAY_SIZE(td575d_sysedp_corecap);
return td575d_sysedp_corecap;
} else {
/* CD570M */
*sz = ARRAY_SIZE(cd570m_sysedp_corecap);
return cd570m_sysedp_corecap;
}
case 0x3:
case 0x1:
/* 580 variants */
*sz = ARRAY_SIZE(td580d_sysedp_corecap);
return td580d_sysedp_corecap;
default:
pr_warn("%s: Unknown cpu_speedo_id, 0x%x. "
" Assuming td570d sysedp_corecap table.\n",
__func__, cpu_speedo_id);
/* intentional fall-through */
case 0x0:
/* 570 variants */
*sz = ARRAY_SIZE(td570d_sysedp_corecap);
return td570d_sysedp_corecap;
}
}
/*
* Specify regulator current in mA, e.g. 5000mA
* Use 0 for default
*/
void __init tegra_init_cpu_edp_limits(unsigned int regulator_mA)
{
int cpu_speedo_id = tegra_cpu_speedo_id();
int i, j;
struct tegra_edp_limits *e;
struct tegra_edp_limits *f;
struct tegra_edp_entry *t = (struct tegra_edp_entry *)tegra_edp_map;
int tsize = sizeof(tegra_edp_map)/sizeof(struct tegra_edp_entry);
if (!regulator_mA) {
edp_limits = edp_default_limits;
edp_limits_size = ARRAY_SIZE(edp_default_limits);
return;
}
regulator_cur = regulator_mA;
for (i = 0; i < tsize; i++) {
if (t[i].speedo_id == cpu_speedo_id &&
t[i].regulator_100mA <= regulator_mA / 100)
break;
}
/* No entry found in tegra_edp_map */
if (i >= tsize) {
edp_limits = edp_default_limits;
edp_limits_size = ARRAY_SIZE(edp_default_limits);
return;
}
/* Find all rows for this entry */
for (j = i + 1; j < tsize; j++) {
if (t[i].speedo_id != t[j].speedo_id ||
t[i].regulator_100mA != t[j].regulator_100mA)
break;
}
edp_limits_size = j - i;
e = kmalloc(sizeof(struct tegra_edp_limits) * edp_limits_size,
GFP_KERNEL);
BUG_ON(!e);
for (j = 0; j < edp_limits_size; j++) {
e[j].temperature = (int)t[i+j].temperature;
e[j].freq_limits[0] = (unsigned int)t[i+j].freq_limits[0] * 10000;
e[j].freq_limits[1] = (unsigned int)(t[i+j].freq_limits[1] + 10) * 10000;
e[j].freq_limits[2] = (unsigned int)(t[i+j].freq_limits[2] + 10) * 10000;
e[j].freq_limits[3] = (unsigned int)(t[i+j].freq_limits[3] + 10) * 10000;
}
f = kmalloc(sizeof(struct tegra_edp_limits) * edp_limits_size,
GFP_KERNEL);
BUG_ON(!f);
memcpy(f, e, sizeof(struct tegra_edp_limits) * edp_limits_size);
BUG_ON(MAX_TEGRA_EDP_LIMITS < edp_limits_size);
memcpy(edp_limits_table, e, sizeof(struct tegra_edp_limits) * edp_limits_size);
if (edp_limits != edp_default_limits)
kfree(edp_limits);
default_table = f;
edp_limits = e;
}
void __init tegra_soc_init_dvfs(void)
{
int cpu_speedo_id = tegra_cpu_speedo_id();
int soc_speedo_id = tegra_soc_speedo_id();
int cpu_process_id = tegra_cpu_process_id();
#ifdef CONFIG_TEGRA3_LP_CORE_OVERDRIVE
int core_process_id = 2;
#else
int core_process_id = tegra_core_process_id();
#endif
int i;
int core_nominal_mv_index;
int cpu_nominal_mv_index;
#ifndef CONFIG_TEGRA_CORE_DVFS
tegra_dvfs_core_disabled = true;
#endif
#ifndef CONFIG_TEGRA_CPU_DVFS
tegra_dvfs_cpu_disabled = true;
#endif
/*
* Find nominal voltages for core (1st) and cpu rails before rail
* init. Nominal voltage index in the scaling ladder will also be
* used to determine max dvfs frequency for the respective domains.
*/
core_nominal_mv_index = get_core_nominal_mv_index(soc_speedo_id);
if (core_nominal_mv_index < 0) {
tegra3_dvfs_rail_vdd_core.disabled = true;
tegra_dvfs_core_disabled = true;
core_nominal_mv_index = 0;
}
tegra3_dvfs_rail_vdd_core.nominal_millivolts =
core_millivolts[core_nominal_mv_index];
cpu_nominal_mv_index = get_cpu_nominal_mv_index(
cpu_speedo_id, cpu_process_id, &cpu_dvfs);
BUG_ON((cpu_nominal_mv_index < 0) || (!cpu_dvfs));
tegra3_dvfs_rail_vdd_cpu.nominal_millivolts =
cpu_millivolts[cpu_nominal_mv_index];
/* Init rail structures and dependencies */
tegra_dvfs_init_rails(tegra3_dvfs_rails, ARRAY_SIZE(tegra3_dvfs_rails));
tegra_dvfs_add_relationships(tegra3_dvfs_relationships,
ARRAY_SIZE(tegra3_dvfs_relationships));
/* Search core dvfs table for speedo/process matching entries and
initialize dvfs-ed clocks */
for (i = 0; i < ARRAY_SIZE(core_dvfs_table); i++) {
struct dvfs *d = &core_dvfs_table[i];
if (!match_dvfs_one(d, soc_speedo_id, core_process_id))
continue;
init_dvfs_one(d, core_nominal_mv_index);
}
/* Initialize matching cpu dvfs entry already found when nominal
voltage was determined */
init_dvfs_one(cpu_dvfs, cpu_nominal_mv_index);
init_dvfs_cold(cpu_dvfs, cpu_nominal_mv_index);
/* Finally disable dvfs on rails if necessary */
if (tegra_dvfs_core_disabled)
tegra_dvfs_rail_disable(&tegra3_dvfs_rail_vdd_core);
if (tegra_dvfs_cpu_disabled)
tegra_dvfs_rail_disable(&tegra3_dvfs_rail_vdd_cpu);
pr_info("tegra dvfs: VDD_CPU nominal %dmV, scaling %s\n",
tegra3_dvfs_rail_vdd_cpu.nominal_millivolts,
tegra_dvfs_cpu_disabled ? "disabled" : "enabled");
pr_info("tegra dvfs: VDD_CORE nominal %dmV, scaling %s\n",
tegra3_dvfs_rail_vdd_core.nominal_millivolts,
tegra_dvfs_core_disabled ? "disabled" : "enabled");
}
void tegra_init_cache(bool init)
{
void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
u32 aux_ctrl;
u32 speedo;
u32 tmp;
#ifdef CONFIG_TRUSTED_FOUNDATIONS
/* issue the SMC to enable the L2 */
aux_ctrl = readl_relaxed(p + L2X0_AUX_CTRL);
tegra_cache_smc(true, aux_ctrl);
/* after init, reread aux_ctrl and register handlers */
aux_ctrl = readl_relaxed(p + L2X0_AUX_CTRL);
l2x0_init(p, aux_ctrl, 0xFFFFFFFF);
/* override outer_disable() with our disable */
outer_cache.disable = tegra_l2x0_disable;
#else
#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
writel_relaxed(0x331, p + L2X0_TAG_LATENCY_CTRL);
writel_relaxed(0x441, p + L2X0_DATA_LATENCY_CTRL);
#elif defined(CONFIG_ARCH_TEGRA_3x_SOC)
#ifdef CONFIG_TEGRA_SILICON_PLATFORM
/* PL310 RAM latency is CPU dependent. NOTE: Changes here
must also be reflected in __cortex_a9_l2x0_restart */
if (is_lp_cluster()) {
writel(0x221, p + L2X0_TAG_LATENCY_CTRL);
writel(0x221, p + L2X0_DATA_LATENCY_CTRL);
} else {
/* relax l2-cache latency for speedos 4,5,6 (T33's chips) */
speedo = tegra_cpu_speedo_id();
if (speedo == 4 || speedo == 5 || speedo == 6 ||
speedo == 12 || speedo == 13) {
writel(0x442, p + L2X0_TAG_LATENCY_CTRL);
writel(0x552, p + L2X0_DATA_LATENCY_CTRL);
} else {
writel(0x441, p + L2X0_TAG_LATENCY_CTRL);
writel(0x551, p + L2X0_DATA_LATENCY_CTRL);
}
}
#else
writel(0x770, p + L2X0_TAG_LATENCY_CTRL);
writel(0x770, p + L2X0_DATA_LATENCY_CTRL);
#endif
#endif
aux_ctrl = readl(p + L2X0_CACHE_TYPE);
aux_ctrl = (aux_ctrl & 0x700) << (17-8);
aux_ctrl |= 0x7C000001;
if (init) {
l2x0_init(p, aux_ctrl, 0x8200c3fe);
} else {
tmp = aux_ctrl;
aux_ctrl = readl(p + L2X0_AUX_CTRL);
aux_ctrl &= 0x8200c3fe;
aux_ctrl |= tmp;
writel(aux_ctrl, p + L2X0_AUX_CTRL);
}
l2x0_enable();
#endif
}
static int init_cpu_edp_limits_calculated(void)
{
unsigned int max_nr_cpus = num_possible_cpus();
unsigned int temp_idx, n_cores_idx, pwr_idx;
unsigned int cpu_g_minf, cpu_g_maxf;
unsigned int iddq_mA;
unsigned int cpu_speedo_idx;
unsigned int cap, limit;
struct tegra_edp_limits *edp_calculated_limits;
struct tegra_system_edp_entry *power_edp_calc_limits;
struct tegra_edp_cpu_leakage_params *params;
int ret;
struct clk *clk_cpu_g = tegra_get_clock_by_name("cpu_g");
int cpu_speedo_id = tegra_cpu_speedo_id();
/* Determine all inputs to EDP formula */
iddq_mA = tegra_get_cpu_iddq_value();
ret = edp_find_speedo_idx(cpu_speedo_id, &cpu_speedo_idx);
if (ret)
return ret;
switch (tegra_chip_id) {
case TEGRA_CHIPID_TEGRA11:
params = tegra11x_get_leakage_params(cpu_speedo_idx, NULL);
break;
case TEGRA_CHIPID_TEGRA3:
case TEGRA_CHIPID_TEGRA2:
default:
return -EINVAL;
}
edp_calculated_limits = kmalloc(sizeof(struct tegra_edp_limits)
* ARRAY_SIZE(temperatures), GFP_KERNEL);
BUG_ON(!edp_calculated_limits);
power_edp_calc_limits = kmalloc(sizeof(struct tegra_system_edp_entry)
* ARRAY_SIZE(power_cap_levels), GFP_KERNEL);
BUG_ON(!power_edp_calc_limits);
cpu_g_minf = 0;
cpu_g_maxf = clk_get_max_rate(clk_cpu_g);
freq_voltage_lut_size = (cpu_g_maxf - cpu_g_minf) / FREQ_STEP + 1;
freq_voltage_lut = kmalloc(sizeof(struct tegra_edp_freq_voltage_table)
* freq_voltage_lut_size, GFP_KERNEL);
if (!freq_voltage_lut) {
pr_err("%s: failed alloc mem for freq/voltage LUT\n", __func__);
return -ENOMEM;
}
ret = edp_relate_freq_voltage(clk_cpu_g, cpu_speedo_idx,
freq_voltage_lut_size, freq_voltage_lut);
if (ret) {
kfree(freq_voltage_lut);
return ret;
}
if (freq_voltage_lut_size != freq_voltage_lut_size_saved) {
/* release previous table if present */
kfree(freq_voltage_lut_saved);
/* create table to save */
freq_voltage_lut_saved =
kmalloc(sizeof(struct tegra_edp_freq_voltage_table) *
freq_voltage_lut_size, GFP_KERNEL);
if (!freq_voltage_lut_saved) {
pr_err("%s: failed alloc mem for freq/voltage LUT\n",
__func__);
kfree(freq_voltage_lut);
return -ENOMEM;
}
freq_voltage_lut_size_saved = freq_voltage_lut_size;
}
memcpy(freq_voltage_lut_saved,
freq_voltage_lut,
sizeof(struct tegra_edp_freq_voltage_table) *
freq_voltage_lut_size);
/* Calculate EDP table */
for (n_cores_idx = 0; n_cores_idx < max_nr_cpus; n_cores_idx++) {
for (temp_idx = 0;
temp_idx < ARRAY_SIZE(temperatures); temp_idx++) {
edp_calculated_limits[temp_idx].temperature =
temperatures[temp_idx];
limit = edp_calculate_maxf(params,
temperatures[temp_idx],
-1,
iddq_mA,
n_cores_idx);
if (limit == -EINVAL)
return -EINVAL;
/* apply safety cap if it is specified */
if (n_cores_idx < 4) {
cap = params->safety_cap[n_cores_idx];
if (cap && cap < limit)
limit = cap;
}
edp_calculated_limits[temp_idx].
freq_limits[n_cores_idx] = limit;
}
for (pwr_idx = 0;
pwr_idx < ARRAY_SIZE(power_cap_levels); pwr_idx++) {
power_edp_calc_limits[pwr_idx].power_limit_100mW =
power_cap_levels[pwr_idx] / 100;
limit = edp_calculate_maxf(params,
50,
power_cap_levels[pwr_idx],
iddq_mA,
n_cores_idx);
if (limit == -EINVAL)
return -EINVAL;
power_edp_calc_limits[pwr_idx].
freq_limits[n_cores_idx] = limit;
}
}
/*
* If this is an EDP table update, need to overwrite old table.
* The old table's address must remain valid.
*/
if (edp_limits != edp_default_limits) {
memcpy(edp_limits, edp_calculated_limits,
sizeof(struct tegra_edp_limits)
* ARRAY_SIZE(temperatures));
kfree(edp_calculated_limits);
}
else {
edp_limits = edp_calculated_limits;
edp_limits_size = ARRAY_SIZE(temperatures);
}
if (power_edp_limits != power_edp_default_limits) {
memcpy(power_edp_limits, power_edp_calc_limits,
sizeof(struct tegra_system_edp_entry)
* ARRAY_SIZE(power_cap_levels));
kfree(power_edp_calc_limits);
} else {
power_edp_limits = power_edp_calc_limits;
power_edp_limits_size = ARRAY_SIZE(power_cap_levels);
}
kfree(freq_voltage_lut);
return 0;
}
/*
* Specify regulator current in mA, e.g. 5000mA
* Use 0 for default
*/
void __init tegra_init_cpu_edp_limits(unsigned int regulator_mA)
{
int cpu_speedo_id = tegra_cpu_speedo_id();
int cpu_process_id = tegra_cpu_process_id();
int i, j;
struct tegra_edp_limits *e;
struct tegra_edp_entry *t = (struct tegra_edp_entry *)tegra_edp_map;
int tsize = sizeof(tegra_edp_map)/sizeof(struct tegra_edp_entry);
if (!regulator_mA) {
edp_limits = edp_default_limits;
edp_limits_size = ARRAY_SIZE(edp_default_limits);
return;
}
regulator_cur = regulator_mA;
for (i = 0; i < tsize; i++) {
if (t[i].speedo_id == cpu_speedo_id &&
t[i].regulator_100mA <= regulator_mA / 100)
break;
}
/* No entry found in tegra_edp_map */
if (i >= tsize) {
edp_limits = edp_default_limits;
edp_limits_size = ARRAY_SIZE(edp_default_limits);
return;
}
/* Find all rows for this entry */
for (j = i + 1; j < tsize; j++) {
if (t[i].speedo_id != t[j].speedo_id ||
t[i].regulator_100mA != t[j].regulator_100mA)
break;
}
edp_limits_size = j - i;
e = kmalloc(sizeof(struct tegra_edp_limits) * edp_limits_size,
GFP_KERNEL);
BUG_ON(!e);
#ifdef CONFIG_CPU_OVERCLOCK
switch (cpu_process_id) {
case 0:
edpl0 = 20;
edpl123 = 30;
break;
case 1:
edpl0 = 20;
edpl123 = 30;
break;
case 2:
edpl0 = 20;
edpl123 = 30;
break;
case 3:
default:
edpl0 = 20;
edpl123 = 30;
break;
}
#endif
for (j = 0; j < edp_limits_size; j++) {
#ifdef CONFIG_CPU_OVERCLOCK
e[j].temperature = (int)t[i+j].temperature;
e[j].freq_limits[0] = (unsigned int)(t[i+j].freq_limits[0]+edpl0) * 10000;
e[j].freq_limits[1] = (unsigned int)(t[i+j].freq_limits[1]+edpl123) * 10000;
e[j].freq_limits[2] = (unsigned int)(t[i+j].freq_limits[2]+edpl123) * 10000;
e[j].freq_limits[3] = (unsigned int)(t[i+j].freq_limits[3]+edpl123) * 10000;
#else
e[j].temperature = (int)t[i+j].temperature;
e[j].freq_limits[0] = (unsigned int)t[i+j].freq_limits[0] * 10000;
e[j].freq_limits[1] = (unsigned int)(t[i+j].freq_limits[1]+10) * 10000;
e[j].freq_limits[2] = (unsigned int)(t[i+j].freq_limits[2]+10) * 10000;
e[j].freq_limits[3] = (unsigned int)(t[i+j].freq_limits[3]+10) * 10000;
#endif
}
if (edp_limits != edp_default_limits)
kfree(edp_limits);
edp_limits = e;
}
