diff options
author | Dave Jones <davej@redhat.com> | 2006-02-28 00:43:23 -0500 |
---|---|---|
committer | Dave Jones <davej@redhat.com> | 2006-02-28 00:43:23 -0500 |
commit | 32ee8c3e470d86588b51dc42ed01e85c5fa0f180 (patch) | |
tree | d544cc24c37c02f44f9cf89cb5647d74a61d7ce6 /arch | |
parent | 8ad5496d2359a19127ad9f2eda69485025c9917f (diff) |
[CPUFREQ] Lots of whitespace & CodingStyle cleanup.
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/Kconfig | 1 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c | 64 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/elanfreq.c | 109 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/gx-suspmod.c | 180 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/longhaul.h | 4 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/p4-clockmod.c | 24 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k6.c | 16 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k7.c | 10 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 15 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.h | 6 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-lib.c | 42 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-lib.h | 20 | ||||
-rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-smi.c | 49 |
13 files changed, 257 insertions, 283 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig index 26892d2099b0..0f1eb507233b 100644 --- a/arch/i386/kernel/cpu/cpufreq/Kconfig +++ b/arch/i386/kernel/cpu/cpufreq/Kconfig | |||
@@ -96,7 +96,6 @@ config X86_POWERNOW_K8_ACPI | |||
96 | 96 | ||
97 | config X86_GX_SUSPMOD | 97 | config X86_GX_SUSPMOD |
98 | tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation" | 98 | tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation" |
99 | depends on PCI | ||
100 | help | 99 | help |
101 | This add the CPUFreq driver for NatSemi Geode processors which | 100 | This add the CPUFreq driver for NatSemi Geode processors which |
102 | support suspend modulation. | 101 | support suspend modulation. |
diff --git a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c index 2b62dee35c6c..f275e0d4aee5 100644 --- a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c +++ b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c | |||
@@ -39,7 +39,7 @@ static struct pci_dev *nforce2_chipset_dev; | |||
39 | static int fid = 0; | 39 | static int fid = 0; |
40 | 40 | ||
41 | /* min_fsb, max_fsb: | 41 | /* min_fsb, max_fsb: |
42 | * minimum and maximum FSB (= FSB at boot time) | 42 | * minimum and maximum FSB (= FSB at boot time) |
43 | */ | 43 | */ |
44 | static int min_fsb = 0; | 44 | static int min_fsb = 0; |
45 | static int max_fsb = 0; | 45 | static int max_fsb = 0; |
@@ -57,10 +57,10 @@ MODULE_PARM_DESC(min_fsb, | |||
57 | 57 | ||
58 | #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "cpufreq-nforce2", msg) | 58 | #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "cpufreq-nforce2", msg) |
59 | 59 | ||
60 | /* | 60 | /** |
61 | * nforce2_calc_fsb - calculate FSB | 61 | * nforce2_calc_fsb - calculate FSB |
62 | * @pll: PLL value | 62 | * @pll: PLL value |
63 | * | 63 | * |
64 | * Calculates FSB from PLL value | 64 | * Calculates FSB from PLL value |
65 | */ | 65 | */ |
66 | static int nforce2_calc_fsb(int pll) | 66 | static int nforce2_calc_fsb(int pll) |
@@ -76,10 +76,10 @@ static int nforce2_calc_fsb(int pll) | |||
76 | return 0; | 76 | return 0; |
77 | } | 77 | } |
78 | 78 | ||
79 | /* | 79 | /** |
80 | * nforce2_calc_pll - calculate PLL value | 80 | * nforce2_calc_pll - calculate PLL value |
81 | * @fsb: FSB | 81 | * @fsb: FSB |
82 | * | 82 | * |
83 | * Calculate PLL value for given FSB | 83 | * Calculate PLL value for given FSB |
84 | */ | 84 | */ |
85 | static int nforce2_calc_pll(unsigned int fsb) | 85 | static int nforce2_calc_pll(unsigned int fsb) |
@@ -106,10 +106,10 @@ static int nforce2_calc_pll(unsigned int fsb) | |||
106 | return NFORCE2_PLL(mul, div); | 106 | return NFORCE2_PLL(mul, div); |
107 | } | 107 | } |
108 | 108 | ||
109 | /* | 109 | /** |
110 | * nforce2_write_pll - write PLL value to chipset | 110 | * nforce2_write_pll - write PLL value to chipset |
111 | * @pll: PLL value | 111 | * @pll: PLL value |
112 | * | 112 | * |
113 | * Writes new FSB PLL value to chipset | 113 | * Writes new FSB PLL value to chipset |
114 | */ | 114 | */ |
115 | static void nforce2_write_pll(int pll) | 115 | static void nforce2_write_pll(int pll) |
@@ -121,15 +121,13 @@ static void nforce2_write_pll(int pll) | |||
121 | pci_write_config_dword(nforce2_chipset_dev, NFORCE2_PLLADR, temp); | 121 | pci_write_config_dword(nforce2_chipset_dev, NFORCE2_PLLADR, temp); |
122 | 122 | ||
123 | /* Now write the value in all 64 registers */ | 123 | /* Now write the value in all 64 registers */ |
124 | for (temp = 0; temp <= 0x3f; temp++) { | 124 | for (temp = 0; temp <= 0x3f; temp++) |
125 | pci_write_config_dword(nforce2_chipset_dev, | 125 | pci_write_config_dword(nforce2_chipset_dev, NFORCE2_PLLREG, pll); |
126 | NFORCE2_PLLREG, pll); | ||
127 | } | ||
128 | 126 | ||
129 | return; | 127 | return; |
130 | } | 128 | } |
131 | 129 | ||
132 | /* | 130 | /** |
133 | * nforce2_fsb_read - Read FSB | 131 | * nforce2_fsb_read - Read FSB |
134 | * | 132 | * |
135 | * Read FSB from chipset | 133 | * Read FSB from chipset |
@@ -140,39 +138,32 @@ static unsigned int nforce2_fsb_read(int bootfsb) | |||
140 | struct pci_dev *nforce2_sub5; | 138 | struct pci_dev *nforce2_sub5; |
141 | u32 fsb, temp = 0; | 139 | u32 fsb, temp = 0; |
142 | 140 | ||
143 | |||
144 | /* Get chipset boot FSB from subdevice 5 (FSB at boot-time) */ | 141 | /* Get chipset boot FSB from subdevice 5 (FSB at boot-time) */ |
145 | nforce2_sub5 = pci_get_subsys(PCI_VENDOR_ID_NVIDIA, | 142 | nforce2_sub5 = pci_get_subsys(PCI_VENDOR_ID_NVIDIA, |
146 | 0x01EF, | 143 | 0x01EF,PCI_ANY_ID,PCI_ANY_ID,NULL); |
147 | PCI_ANY_ID, | ||
148 | PCI_ANY_ID, | ||
149 | NULL); | ||
150 | |||
151 | if (!nforce2_sub5) | 144 | if (!nforce2_sub5) |
152 | return 0; | 145 | return 0; |
153 | 146 | ||
154 | pci_read_config_dword(nforce2_sub5, NFORCE2_BOOTFSB, &fsb); | 147 | pci_read_config_dword(nforce2_sub5, NFORCE2_BOOTFSB, &fsb); |
155 | fsb /= 1000000; | 148 | fsb /= 1000000; |
156 | 149 | ||
157 | /* Check if PLL register is already set */ | 150 | /* Check if PLL register is already set */ |
158 | pci_read_config_byte(nforce2_chipset_dev, | 151 | pci_read_config_byte(nforce2_chipset_dev,NFORCE2_PLLENABLE, (u8 *)&temp); |
159 | NFORCE2_PLLENABLE, (u8 *)&temp); | 152 | |
160 | |||
161 | if(bootfsb || !temp) | 153 | if(bootfsb || !temp) |
162 | return fsb; | 154 | return fsb; |
163 | 155 | ||
164 | /* Use PLL register FSB value */ | 156 | /* Use PLL register FSB value */ |
165 | pci_read_config_dword(nforce2_chipset_dev, | 157 | pci_read_config_dword(nforce2_chipset_dev,NFORCE2_PLLREG, &temp); |
166 | NFORCE2_PLLREG, &temp); | ||
167 | fsb = nforce2_calc_fsb(temp); | 158 | fsb = nforce2_calc_fsb(temp); |
168 | 159 | ||
169 | return fsb; | 160 | return fsb; |
170 | } | 161 | } |
171 | 162 | ||
172 | /* | 163 | /** |
173 | * nforce2_set_fsb - set new FSB | 164 | * nforce2_set_fsb - set new FSB |
174 | * @fsb: New FSB | 165 | * @fsb: New FSB |
175 | * | 166 | * |
176 | * Sets new FSB | 167 | * Sets new FSB |
177 | */ | 168 | */ |
178 | static int nforce2_set_fsb(unsigned int fsb) | 169 | static int nforce2_set_fsb(unsigned int fsb) |
@@ -186,7 +177,7 @@ static int nforce2_set_fsb(unsigned int fsb) | |||
186 | printk(KERN_ERR "cpufreq: FSB %d is out of range!\n", fsb); | 177 | printk(KERN_ERR "cpufreq: FSB %d is out of range!\n", fsb); |
187 | return -EINVAL; | 178 | return -EINVAL; |
188 | } | 179 | } |
189 | 180 | ||
190 | tfsb = nforce2_fsb_read(0); | 181 | tfsb = nforce2_fsb_read(0); |
191 | if (!tfsb) { | 182 | if (!tfsb) { |
192 | printk(KERN_ERR "cpufreq: Error while reading the FSB\n"); | 183 | printk(KERN_ERR "cpufreq: Error while reading the FSB\n"); |
@@ -194,8 +185,7 @@ static int nforce2_set_fsb(unsigned int fsb) | |||
194 | } | 185 | } |
195 | 186 | ||
196 | /* First write? Then set actual value */ | 187 | /* First write? Then set actual value */ |
197 | pci_read_config_byte(nforce2_chipset_dev, | 188 | pci_read_config_byte(nforce2_chipset_dev,NFORCE2_PLLENABLE, (u8 *)&temp); |
198 | NFORCE2_PLLENABLE, (u8 *)&temp); | ||
199 | if (!temp) { | 189 | if (!temp) { |
200 | pll = nforce2_calc_pll(tfsb); | 190 | pll = nforce2_calc_pll(tfsb); |
201 | 191 | ||
@@ -223,7 +213,7 @@ static int nforce2_set_fsb(unsigned int fsb) | |||
223 | /* Calculate the PLL reg. value */ | 213 | /* Calculate the PLL reg. value */ |
224 | if ((pll = nforce2_calc_pll(tfsb)) == -1) | 214 | if ((pll = nforce2_calc_pll(tfsb)) == -1) |
225 | return -EINVAL; | 215 | return -EINVAL; |
226 | 216 | ||
227 | nforce2_write_pll(pll); | 217 | nforce2_write_pll(pll); |
228 | #ifdef NFORCE2_DELAY | 218 | #ifdef NFORCE2_DELAY |
229 | mdelay(NFORCE2_DELAY); | 219 | mdelay(NFORCE2_DELAY); |
@@ -239,7 +229,7 @@ static int nforce2_set_fsb(unsigned int fsb) | |||
239 | /** | 229 | /** |
240 | * nforce2_get - get the CPU frequency | 230 | * nforce2_get - get the CPU frequency |
241 | * @cpu: CPU number | 231 | * @cpu: CPU number |
242 | * | 232 | * |
243 | * Returns the CPU frequency | 233 | * Returns the CPU frequency |
244 | */ | 234 | */ |
245 | static unsigned int nforce2_get(unsigned int cpu) | 235 | static unsigned int nforce2_get(unsigned int cpu) |
@@ -354,10 +344,10 @@ static int nforce2_cpu_init(struct cpufreq_policy *policy) | |||
354 | 344 | ||
355 | printk(KERN_INFO "cpufreq: FSB currently at %i MHz, FID %d.%d\n", fsb, | 345 | printk(KERN_INFO "cpufreq: FSB currently at %i MHz, FID %d.%d\n", fsb, |
356 | fid / 10, fid % 10); | 346 | fid / 10, fid % 10); |
357 | 347 | ||
358 | /* Set maximum FSB to FSB at boot time */ | 348 | /* Set maximum FSB to FSB at boot time */ |
359 | max_fsb = nforce2_fsb_read(1); | 349 | max_fsb = nforce2_fsb_read(1); |
360 | 350 | ||
361 | if(!max_fsb) | 351 | if(!max_fsb) |
362 | return -EIO; | 352 | return -EIO; |
363 | 353 | ||
@@ -398,17 +388,15 @@ static struct cpufreq_driver nforce2_driver = { | |||
398 | * nforce2_detect_chipset - detect the Southbridge which contains FSB PLL logic | 388 | * nforce2_detect_chipset - detect the Southbridge which contains FSB PLL logic |
399 | * | 389 | * |
400 | * Detects nForce2 A2 and C1 stepping | 390 | * Detects nForce2 A2 and C1 stepping |
401 | * | 391 | * |
402 | */ | 392 | */ |
403 | static unsigned int nforce2_detect_chipset(void) | 393 | static unsigned int nforce2_detect_chipset(void) |
404 | { | 394 | { |
405 | u8 revision; | 395 | u8 revision; |
406 | 396 | ||
407 | nforce2_chipset_dev = pci_get_subsys(PCI_VENDOR_ID_NVIDIA, | 397 | nforce2_chipset_dev = pci_get_subsys(PCI_VENDOR_ID_NVIDIA, |
408 | PCI_DEVICE_ID_NVIDIA_NFORCE2, | 398 | PCI_DEVICE_ID_NVIDIA_NFORCE2, |
409 | PCI_ANY_ID, | 399 | PCI_ANY_ID, PCI_ANY_ID, NULL); |
410 | PCI_ANY_ID, | ||
411 | NULL); | ||
412 | 400 | ||
413 | if (nforce2_chipset_dev == NULL) | 401 | if (nforce2_chipset_dev == NULL) |
414 | return -ENODEV; | 402 | return -ENODEV; |
diff --git a/arch/i386/kernel/cpu/cpufreq/elanfreq.c b/arch/i386/kernel/cpu/cpufreq/elanfreq.c index 3f7caa4ae6d6..f317276afa7a 100644 --- a/arch/i386/kernel/cpu/cpufreq/elanfreq.c +++ b/arch/i386/kernel/cpu/cpufreq/elanfreq.c | |||
@@ -1,16 +1,16 @@ | |||
1 | /* | 1 | /* |
2 | * elanfreq: cpufreq driver for the AMD ELAN family | 2 | * elanfreq: cpufreq driver for the AMD ELAN family |
3 | * | 3 | * |
4 | * (c) Copyright 2002 Robert Schwebel <r.schwebel@pengutronix.de> | 4 | * (c) Copyright 2002 Robert Schwebel <r.schwebel@pengutronix.de> |
5 | * | 5 | * |
6 | * Parts of this code are (c) Sven Geggus <sven@geggus.net> | 6 | * Parts of this code are (c) Sven Geggus <sven@geggus.net> |
7 | * | 7 | * |
8 | * All Rights Reserved. | 8 | * All Rights Reserved. |
9 | * | 9 | * |
10 | * This program is free software; you can redistribute it and/or | 10 | * This program is free software; you can redistribute it and/or |
11 | * modify it under the terms of the GNU General Public License | 11 | * modify it under the terms of the GNU General Public License |
12 | * as published by the Free Software Foundation; either version | 12 | * as published by the Free Software Foundation; either version |
13 | * 2 of the License, or (at your option) any later version. | 13 | * 2 of the License, or (at your option) any later version. |
14 | * | 14 | * |
15 | * 2002-02-13: - initial revision for 2.4.18-pre9 by Robert Schwebel | 15 | * 2002-02-13: - initial revision for 2.4.18-pre9 by Robert Schwebel |
16 | * | 16 | * |
@@ -28,7 +28,7 @@ | |||
28 | #include <asm/timex.h> | 28 | #include <asm/timex.h> |
29 | #include <asm/io.h> | 29 | #include <asm/io.h> |
30 | 30 | ||
31 | #define REG_CSCIR 0x22 /* Chip Setup and Control Index Register */ | 31 | #define REG_CSCIR 0x22 /* Chip Setup and Control Index Register */ |
32 | #define REG_CSCDR 0x23 /* Chip Setup and Control Data Register */ | 32 | #define REG_CSCDR 0x23 /* Chip Setup and Control Data Register */ |
33 | 33 | ||
34 | /* Module parameter */ | 34 | /* Module parameter */ |
@@ -41,7 +41,7 @@ struct s_elan_multiplier { | |||
41 | }; | 41 | }; |
42 | 42 | ||
43 | /* | 43 | /* |
44 | * It is important that the frequencies | 44 | * It is important that the frequencies |
45 | * are listed in ascending order here! | 45 | * are listed in ascending order here! |
46 | */ | 46 | */ |
47 | struct s_elan_multiplier elan_multiplier[] = { | 47 | struct s_elan_multiplier elan_multiplier[] = { |
@@ -72,78 +72,79 @@ static struct cpufreq_frequency_table elanfreq_table[] = { | |||
72 | * elanfreq_get_cpu_frequency: determine current cpu speed | 72 | * elanfreq_get_cpu_frequency: determine current cpu speed |
73 | * | 73 | * |
74 | * Finds out at which frequency the CPU of the Elan SOC runs | 74 | * Finds out at which frequency the CPU of the Elan SOC runs |
75 | * at the moment. Frequencies from 1 to 33 MHz are generated | 75 | * at the moment. Frequencies from 1 to 33 MHz are generated |
76 | * the normal way, 66 and 99 MHz are called "Hyperspeed Mode" | 76 | * the normal way, 66 and 99 MHz are called "Hyperspeed Mode" |
77 | * and have the rest of the chip running with 33 MHz. | 77 | * and have the rest of the chip running with 33 MHz. |
78 | */ | 78 | */ |
79 | 79 | ||
80 | static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) | 80 | static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) |
81 | { | 81 | { |
82 | u8 clockspeed_reg; /* Clock Speed Register */ | 82 | u8 clockspeed_reg; /* Clock Speed Register */ |
83 | 83 | ||
84 | local_irq_disable(); | 84 | local_irq_disable(); |
85 | outb_p(0x80,REG_CSCIR); | 85 | outb_p(0x80,REG_CSCIR); |
86 | clockspeed_reg = inb_p(REG_CSCDR); | 86 | clockspeed_reg = inb_p(REG_CSCDR); |
87 | local_irq_enable(); | 87 | local_irq_enable(); |
88 | 88 | ||
89 | if ((clockspeed_reg & 0xE0) == 0xE0) { return 0; } | 89 | if ((clockspeed_reg & 0xE0) == 0xE0) |
90 | return 0; | ||
90 | 91 | ||
91 | /* Are we in CPU clock multiplied mode (66/99 MHz)? */ | 92 | /* Are we in CPU clock multiplied mode (66/99 MHz)? */ |
92 | if ((clockspeed_reg & 0xE0) == 0xC0) { | 93 | if ((clockspeed_reg & 0xE0) == 0xC0) { |
93 | if ((clockspeed_reg & 0x01) == 0) { | 94 | if ((clockspeed_reg & 0x01) == 0) |
94 | return 66000; | 95 | return 66000; |
95 | } else { | 96 | else |
96 | return 99000; | 97 | return 99000; |
97 | } | 98 | } |
98 | } | ||
99 | 99 | ||
100 | /* 33 MHz is not 32 MHz... */ | 100 | /* 33 MHz is not 32 MHz... */ |
101 | if ((clockspeed_reg & 0xE0)==0xA0) | 101 | if ((clockspeed_reg & 0xE0)==0xA0) |
102 | return 33000; | 102 | return 33000; |
103 | 103 | ||
104 | return ((1<<((clockspeed_reg & 0xE0) >> 5)) * 1000); | 104 | return ((1<<((clockspeed_reg & 0xE0) >> 5)) * 1000); |
105 | } | 105 | } |
106 | 106 | ||
107 | 107 | ||
108 | /** | 108 | /** |
109 | * elanfreq_set_cpu_frequency: Change the CPU core frequency | 109 | * elanfreq_set_cpu_frequency: Change the CPU core frequency |
110 | * @cpu: cpu number | 110 | * @cpu: cpu number |
111 | * @freq: frequency in kHz | 111 | * @freq: frequency in kHz |
112 | * | 112 | * |
113 | * This function takes a frequency value and changes the CPU frequency | 113 | * This function takes a frequency value and changes the CPU frequency |
114 | * according to this. Note that the frequency has to be checked by | 114 | * according to this. Note that the frequency has to be checked by |
115 | * elanfreq_validatespeed() for correctness! | 115 | * elanfreq_validatespeed() for correctness! |
116 | * | 116 | * |
117 | * There is no return value. | 117 | * There is no return value. |
118 | */ | 118 | */ |
119 | 119 | ||
120 | static void elanfreq_set_cpu_state (unsigned int state) { | 120 | static void elanfreq_set_cpu_state (unsigned int state) |
121 | 121 | { | |
122 | struct cpufreq_freqs freqs; | 122 | struct cpufreq_freqs freqs; |
123 | 123 | ||
124 | freqs.old = elanfreq_get_cpu_frequency(0); | 124 | freqs.old = elanfreq_get_cpu_frequency(0); |
125 | freqs.new = elan_multiplier[state].clock; | 125 | freqs.new = elan_multiplier[state].clock; |
126 | freqs.cpu = 0; /* elanfreq.c is UP only driver */ | 126 | freqs.cpu = 0; /* elanfreq.c is UP only driver */ |
127 | 127 | ||
128 | cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); | 128 | cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); |
129 | 129 | ||
130 | printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",elan_multiplier[state].clock); | 130 | printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n", |
131 | elan_multiplier[state].clock); | ||
131 | 132 | ||
132 | 133 | ||
133 | /* | 134 | /* |
134 | * Access to the Elan's internal registers is indexed via | 135 | * Access to the Elan's internal registers is indexed via |
135 | * 0x22: Chip Setup & Control Register Index Register (CSCI) | 136 | * 0x22: Chip Setup & Control Register Index Register (CSCI) |
136 | * 0x23: Chip Setup & Control Register Data Register (CSCD) | 137 | * 0x23: Chip Setup & Control Register Data Register (CSCD) |
137 | * | 138 | * |
138 | */ | 139 | */ |
139 | 140 | ||
140 | /* | 141 | /* |
141 | * 0x40 is the Power Management Unit's Force Mode Register. | 142 | * 0x40 is the Power Management Unit's Force Mode Register. |
142 | * Bit 6 enables Hyperspeed Mode (66/100 MHz core frequency) | 143 | * Bit 6 enables Hyperspeed Mode (66/100 MHz core frequency) |
143 | */ | 144 | */ |
144 | 145 | ||
145 | local_irq_disable(); | 146 | local_irq_disable(); |
146 | outb_p(0x40,REG_CSCIR); /* Disable hyperspeed mode */ | 147 | outb_p(0x40,REG_CSCIR); /* Disable hyperspeed mode */ |
147 | outb_p(0x00,REG_CSCDR); | 148 | outb_p(0x00,REG_CSCDR); |
148 | local_irq_enable(); /* wait till internal pipelines and */ | 149 | local_irq_enable(); /* wait till internal pipelines and */ |
149 | udelay(1000); /* buffers have cleaned up */ | 150 | udelay(1000); /* buffers have cleaned up */ |
@@ -166,10 +167,10 @@ static void elanfreq_set_cpu_state (unsigned int state) { | |||
166 | 167 | ||
167 | /** | 168 | /** |
168 | * elanfreq_validatespeed: test if frequency range is valid | 169 | * elanfreq_validatespeed: test if frequency range is valid |
169 | * @policy: the policy to validate | 170 | * @policy: the policy to validate |
170 | * | 171 | * |
171 | * This function checks if a given frequency range in kHz is valid | 172 | * This function checks if a given frequency range in kHz is valid |
172 | * for the hardware supported by the driver. | 173 | * for the hardware supported by the driver. |
173 | */ | 174 | */ |
174 | 175 | ||
175 | static int elanfreq_verify (struct cpufreq_policy *policy) | 176 | static int elanfreq_verify (struct cpufreq_policy *policy) |
@@ -177,11 +178,11 @@ static int elanfreq_verify (struct cpufreq_policy *policy) | |||
177 | return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]); | 178 | return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]); |
178 | } | 179 | } |
179 | 180 | ||
180 | static int elanfreq_target (struct cpufreq_policy *policy, | 181 | static int elanfreq_target (struct cpufreq_policy *policy, |
181 | unsigned int target_freq, | 182 | unsigned int target_freq, |
182 | unsigned int relation) | 183 | unsigned int relation) |
183 | { | 184 | { |
184 | unsigned int newstate = 0; | 185 | unsigned int newstate = 0; |
185 | 186 | ||
186 | if (cpufreq_frequency_table_target(policy, &elanfreq_table[0], target_freq, relation, &newstate)) | 187 | if (cpufreq_frequency_table_target(policy, &elanfreq_table[0], target_freq, relation, &newstate)) |
187 | return -EINVAL; | 188 | return -EINVAL; |
@@ -212,7 +213,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) | |||
212 | max_freq = elanfreq_get_cpu_frequency(0); | 213 | max_freq = elanfreq_get_cpu_frequency(0); |
213 | 214 | ||
214 | /* table init */ | 215 | /* table init */ |
215 | for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) { | 216 | for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) { |
216 | if (elanfreq_table[i].frequency > max_freq) | 217 | if (elanfreq_table[i].frequency > max_freq) |
217 | elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID; | 218 | elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID; |
218 | } | 219 | } |
@@ -226,8 +227,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) | |||
226 | if (result) | 227 | if (result) |
227 | return (result); | 228 | return (result); |
228 | 229 | ||
229 | cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu); | 230 | cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu); |
230 | |||
231 | return 0; | 231 | return 0; |
232 | } | 232 | } |
233 | 233 | ||
@@ -268,9 +268,9 @@ static struct freq_attr* elanfreq_attr[] = { | |||
268 | 268 | ||
269 | 269 | ||
270 | static struct cpufreq_driver elanfreq_driver = { | 270 | static struct cpufreq_driver elanfreq_driver = { |
271 | .get = elanfreq_get_cpu_frequency, | 271 | .get = elanfreq_get_cpu_frequency, |
272 | .verify = elanfreq_verify, | 272 | .verify = elanfreq_verify, |
273 | .target = elanfreq_target, | 273 | .target = elanfreq_target, |
274 | .init = elanfreq_cpu_init, | 274 | .init = elanfreq_cpu_init, |
275 | .exit = elanfreq_cpu_exit, | 275 | .exit = elanfreq_cpu_exit, |
276 | .name = "elanfreq", | 276 | .name = "elanfreq", |
@@ -279,23 +279,21 @@ static struct cpufreq_driver elanfreq_driver = { | |||
279 | }; | 279 | }; |
280 | 280 | ||
281 | 281 | ||
282 | static int __init elanfreq_init(void) | 282 | static int __init elanfreq_init(void) |
283 | { | 283 | { |
284 | struct cpuinfo_x86 *c = cpu_data; | 284 | struct cpuinfo_x86 *c = cpu_data; |
285 | 285 | ||
286 | /* Test if we have the right hardware */ | 286 | /* Test if we have the right hardware */ |
287 | if ((c->x86_vendor != X86_VENDOR_AMD) || | 287 | if ((c->x86_vendor != X86_VENDOR_AMD) || |
288 | (c->x86 != 4) || (c->x86_model!=10)) | 288 | (c->x86 != 4) || (c->x86_model!=10)) { |
289 | { | ||
290 | printk(KERN_INFO "elanfreq: error: no Elan processor found!\n"); | 289 | printk(KERN_INFO "elanfreq: error: no Elan processor found!\n"); |
291 | return -ENODEV; | 290 | return -ENODEV; |
292 | } | 291 | } |
293 | |||
294 | return cpufreq_register_driver(&elanfreq_driver); | 292 | return cpufreq_register_driver(&elanfreq_driver); |
295 | } | 293 | } |
296 | 294 | ||
297 | 295 | ||
298 | static void __exit elanfreq_exit(void) | 296 | static void __exit elanfreq_exit(void) |
299 | { | 297 | { |
300 | cpufreq_unregister_driver(&elanfreq_driver); | 298 | cpufreq_unregister_driver(&elanfreq_driver); |
301 | } | 299 | } |
@@ -309,4 +307,3 @@ MODULE_DESCRIPTION("cpufreq driver for AMD's Elan CPUs"); | |||
309 | 307 | ||
310 | module_init(elanfreq_init); | 308 | module_init(elanfreq_init); |
311 | module_exit(elanfreq_exit); | 309 | module_exit(elanfreq_exit); |
312 | |||
diff --git a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c index e86ea486c311..65b8fa2b0ee4 100644 --- a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c +++ b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c | |||
@@ -6,12 +6,12 @@ | |||
6 | * | 6 | * |
7 | * This program is free software; you can redistribute it and/or | 7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public License | 8 | * modify it under the terms of the GNU General Public License |
9 | * version 2 as published by the Free Software Foundation | 9 | * version 2 as published by the Free Software Foundation |
10 | * | 10 | * |
11 | * The author(s) of this software shall not be held liable for damages | 11 | * The author(s) of this software shall not be held liable for damages |
12 | * of any nature resulting due to the use of this software. This | 12 | * of any nature resulting due to the use of this software. This |
13 | * software is provided AS-IS with no warranties. | 13 | * software is provided AS-IS with no warranties. |
14 | * | 14 | * |
15 | * Theoritical note: | 15 | * Theoritical note: |
16 | * | 16 | * |
17 | * (see Geode(tm) CS5530 manual (rev.4.1) page.56) | 17 | * (see Geode(tm) CS5530 manual (rev.4.1) page.56) |
@@ -21,18 +21,18 @@ | |||
21 | * | 21 | * |
22 | * Suspend Modulation works by asserting and de-asserting the SUSP# pin | 22 | * Suspend Modulation works by asserting and de-asserting the SUSP# pin |
23 | * to CPU(GX1/GXLV) for configurable durations. When asserting SUSP# | 23 | * to CPU(GX1/GXLV) for configurable durations. When asserting SUSP# |
24 | * the CPU enters an idle state. GX1 stops its core clock when SUSP# is | 24 | * the CPU enters an idle state. GX1 stops its core clock when SUSP# is |
25 | * asserted then power consumption is reduced. | 25 | * asserted then power consumption is reduced. |
26 | * | 26 | * |
27 | * Suspend Modulation's OFF/ON duration are configurable | 27 | * Suspend Modulation's OFF/ON duration are configurable |
28 | * with 'Suspend Modulation OFF Count Register' | 28 | * with 'Suspend Modulation OFF Count Register' |
29 | * and 'Suspend Modulation ON Count Register'. | 29 | * and 'Suspend Modulation ON Count Register'. |
30 | * These registers are 8bit counters that represent the number of | 30 | * These registers are 8bit counters that represent the number of |
31 | * 32us intervals which the SUSP# pin is asserted(ON)/de-asserted(OFF) | 31 | * 32us intervals which the SUSP# pin is asserted(ON)/de-asserted(OFF) |
32 | * to the processor. | 32 | * to the processor. |
33 | * | 33 | * |
34 | * These counters define a ratio which is the effective frequency | 34 | * These counters define a ratio which is the effective frequency |
35 | * of operation of the system. | 35 | * of operation of the system. |
36 | * | 36 | * |
37 | * OFF Count | 37 | * OFF Count |
38 | * F_eff = Fgx * ---------------------- | 38 | * F_eff = Fgx * ---------------------- |
@@ -40,24 +40,24 @@ | |||
40 | * | 40 | * |
41 | * 0 <= On Count, Off Count <= 255 | 41 | * 0 <= On Count, Off Count <= 255 |
42 | * | 42 | * |
43 | * From these limits, we can get register values | 43 | * From these limits, we can get register values |
44 | * | 44 | * |
45 | * off_duration + on_duration <= MAX_DURATION | 45 | * off_duration + on_duration <= MAX_DURATION |
46 | * on_duration = off_duration * (stock_freq - freq) / freq | 46 | * on_duration = off_duration * (stock_freq - freq) / freq |
47 | * | 47 | * |
48 | * off_duration = (freq * DURATION) / stock_freq | 48 | * off_duration = (freq * DURATION) / stock_freq |
49 | * on_duration = DURATION - off_duration | 49 | * on_duration = DURATION - off_duration |
50 | * | 50 | * |
51 | * | 51 | * |
52 | *--------------------------------------------------------------------------- | 52 | *--------------------------------------------------------------------------- |
53 | * | 53 | * |
54 | * ChangeLog: | 54 | * ChangeLog: |
55 | * Dec. 12, 2003 Hiroshi Miura <miura@da-cha.org> | 55 | * Dec. 12, 2003 Hiroshi Miura <miura@da-cha.org> |
56 | * - fix on/off register mistake | 56 | * - fix on/off register mistake |
57 | * - fix cpu_khz calc when it stops cpu modulation. | 57 | * - fix cpu_khz calc when it stops cpu modulation. |
58 | * | 58 | * |
59 | * Dec. 11, 2002 Hiroshi Miura <miura@da-cha.org> | 59 | * Dec. 11, 2002 Hiroshi Miura <miura@da-cha.org> |
60 | * - rewrite for Cyrix MediaGX Cx5510/5520 and | 60 | * - rewrite for Cyrix MediaGX Cx5510/5520 and |
61 | * NatSemi Geode Cs5530(A). | 61 | * NatSemi Geode Cs5530(A). |
62 | * | 62 | * |
63 | * Jul. ??, 2002 Zwane Mwaikambo <zwane@commfireservices.com> | 63 | * Jul. ??, 2002 Zwane Mwaikambo <zwane@commfireservices.com> |
@@ -74,40 +74,40 @@ | |||
74 | ************************************************************************/ | 74 | ************************************************************************/ |
75 | 75 | ||
76 | #include <linux/kernel.h> | 76 | #include <linux/kernel.h> |
77 | #include <linux/module.h> | 77 | #include <linux/module.h> |
78 | #include <linux/init.h> | 78 | #include <linux/init.h> |
79 | #include <linux/smp.h> | 79 | #include <linux/smp.h> |
80 | #include <linux/cpufreq.h> | 80 | #include <linux/cpufreq.h> |
81 | #include <linux/pci.h> | 81 | #include <linux/pci.h> |
82 | #include <asm/processor.h> | 82 | #include <asm/processor.h> |
83 | #include <asm/errno.h> | 83 | #include <asm/errno.h> |
84 | 84 | ||
85 | /* PCI config registers, all at F0 */ | 85 | /* PCI config registers, all at F0 */ |
86 | #define PCI_PMER1 0x80 /* power management enable register 1 */ | 86 | #define PCI_PMER1 0x80 /* power management enable register 1 */ |
87 | #define PCI_PMER2 0x81 /* power management enable register 2 */ | 87 | #define PCI_PMER2 0x81 /* power management enable register 2 */ |
88 | #define PCI_PMER3 0x82 /* power management enable register 3 */ | 88 | #define PCI_PMER3 0x82 /* power management enable register 3 */ |
89 | #define PCI_IRQTC 0x8c /* irq speedup timer counter register:typical 2 to 4ms */ | 89 | #define PCI_IRQTC 0x8c /* irq speedup timer counter register:typical 2 to 4ms */ |
90 | #define PCI_VIDTC 0x8d /* video speedup timer counter register: typical 50 to 100ms */ | 90 | #define PCI_VIDTC 0x8d /* video speedup timer counter register: typical 50 to 100ms */ |
91 | #define PCI_MODOFF 0x94 /* suspend modulation OFF counter register, 1 = 32us */ | 91 | #define PCI_MODOFF 0x94 /* suspend modulation OFF counter register, 1 = 32us */ |
92 | #define PCI_MODON 0x95 /* suspend modulation ON counter register */ | 92 | #define PCI_MODON 0x95 /* suspend modulation ON counter register */ |
93 | #define PCI_SUSCFG 0x96 /* suspend configuration register */ | 93 | #define PCI_SUSCFG 0x96 /* suspend configuration register */ |
94 | 94 | ||
95 | /* PMER1 bits */ | 95 | /* PMER1 bits */ |
96 | #define GPM (1<<0) /* global power management */ | 96 | #define GPM (1<<0) /* global power management */ |
97 | #define GIT (1<<1) /* globally enable PM device idle timers */ | 97 | #define GIT (1<<1) /* globally enable PM device idle timers */ |
98 | #define GTR (1<<2) /* globally enable IO traps */ | 98 | #define GTR (1<<2) /* globally enable IO traps */ |
99 | #define IRQ_SPDUP (1<<3) /* disable clock throttle during interrupt handling */ | 99 | #define IRQ_SPDUP (1<<3) /* disable clock throttle during interrupt handling */ |
100 | #define VID_SPDUP (1<<4) /* disable clock throttle during vga video handling */ | 100 | #define VID_SPDUP (1<<4) /* disable clock throttle during vga video handling */ |
101 | 101 | ||
102 | /* SUSCFG bits */ | 102 | /* SUSCFG bits */ |
103 | #define SUSMOD (1<<0) /* enable/disable suspend modulation */ | 103 | #define SUSMOD (1<<0) /* enable/disable suspend modulation */ |
104 | /* the belows support only with cs5530 (after rev.1.2)/cs5530A */ | 104 | /* the belows support only with cs5530 (after rev.1.2)/cs5530A */ |
105 | #define SMISPDUP (1<<1) /* select how SMI re-enable suspend modulation: */ | 105 | #define SMISPDUP (1<<1) /* select how SMI re-enable suspend modulation: */ |
106 | /* IRQTC timer or read SMI speedup disable reg.(F1BAR[08-09h]) */ | 106 | /* IRQTC timer or read SMI speedup disable reg.(F1BAR[08-09h]) */ |
107 | #define SUSCFG (1<<2) /* enable powering down a GXLV processor. "Special 3Volt Suspend" mode */ | 107 | #define SUSCFG (1<<2) /* enable powering down a GXLV processor. "Special 3Volt Suspend" mode */ |
108 | /* the belows support only with cs5530A */ | 108 | /* the belows support only with cs5530A */ |
109 | #define PWRSVE_ISA (1<<3) /* stop ISA clock */ | 109 | #define PWRSVE_ISA (1<<3) /* stop ISA clock */ |
110 | #define PWRSVE (1<<4) /* active idle */ | 110 | #define PWRSVE (1<<4) /* active idle */ |
111 | 111 | ||
112 | struct gxfreq_params { | 112 | struct gxfreq_params { |
113 | u8 on_duration; | 113 | u8 on_duration; |
@@ -128,7 +128,7 @@ module_param (pci_busclk, int, 0444); | |||
128 | 128 | ||
129 | /* maximum duration for which the cpu may be suspended | 129 | /* maximum duration for which the cpu may be suspended |
130 | * (32us * MAX_DURATION). If no parameter is given, this defaults | 130 | * (32us * MAX_DURATION). If no parameter is given, this defaults |
131 | * to 255. | 131 | * to 255. |
132 | * Note that this leads to a maximum of 8 ms(!) where the CPU clock | 132 | * Note that this leads to a maximum of 8 ms(!) where the CPU clock |
133 | * is suspended -- processing power is just 0.39% of what it used to be, | 133 | * is suspended -- processing power is just 0.39% of what it used to be, |
134 | * though. 781.25 kHz(!) for a 200 MHz processor -- wow. */ | 134 | * though. 781.25 kHz(!) for a 200 MHz processor -- wow. */ |
@@ -144,17 +144,17 @@ module_param (max_duration, int, 0444); | |||
144 | #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "gx-suspmod", msg) | 144 | #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "gx-suspmod", msg) |
145 | 145 | ||
146 | /** | 146 | /** |
147 | * we can detect a core multipiler from dir0_lsb | 147 | * we can detect a core multipiler from dir0_lsb |
148 | * from GX1 datasheet p.56, | 148 | * from GX1 datasheet p.56, |
149 | * MULT[3:0]: | 149 | * MULT[3:0]: |
150 | * 0000 = SYSCLK multiplied by 4 (test only) | 150 | * 0000 = SYSCLK multiplied by 4 (test only) |
151 | * 0001 = SYSCLK multiplied by 10 | 151 | * 0001 = SYSCLK multiplied by 10 |
152 | * 0010 = SYSCLK multiplied by 4 | 152 | * 0010 = SYSCLK multiplied by 4 |
153 | * 0011 = SYSCLK multiplied by 6 | 153 | * 0011 = SYSCLK multiplied by 6 |
154 | * 0100 = SYSCLK multiplied by 9 | 154 | * 0100 = SYSCLK multiplied by 9 |
155 | * 0101 = SYSCLK multiplied by 5 | 155 | * 0101 = SYSCLK multiplied by 5 |
156 | * 0110 = SYSCLK multiplied by 7 | 156 | * 0110 = SYSCLK multiplied by 7 |
157 | * 0111 = SYSCLK multiplied by 8 | 157 | * 0111 = SYSCLK multiplied by 8 |
158 | * of 33.3MHz | 158 | * of 33.3MHz |
159 | **/ | 159 | **/ |
160 | static int gx_freq_mult[16] = { | 160 | static int gx_freq_mult[16] = { |
@@ -164,17 +164,17 @@ static int gx_freq_mult[16] = { | |||
164 | 164 | ||
165 | 165 | ||
166 | /**************************************************************** | 166 | /**************************************************************** |
167 | * Low Level chipset interface * | 167 | * Low Level chipset interface * |
168 | ****************************************************************/ | 168 | ****************************************************************/ |
169 | static struct pci_device_id gx_chipset_tbl[] __initdata = { | 169 | static struct pci_device_id gx_chipset_tbl[] __initdata = { |
170 | { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, PCI_ANY_ID, PCI_ANY_ID }, | 170 | { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, PCI_ANY_ID, PCI_ANY_ID }, |
171 | { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, PCI_ANY_ID, PCI_ANY_ID }, | 171 | { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, PCI_ANY_ID, PCI_ANY_ID }, |
172 | { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, PCI_ANY_ID, PCI_ANY_ID }, | 172 | { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, PCI_ANY_ID, PCI_ANY_ID }, |
173 | { 0, }, | 173 | { 0, }, |
174 | }; | 174 | }; |
175 | 175 | ||
176 | /** | 176 | /** |
177 | * gx_detect_chipset: | 177 | * gx_detect_chipset: |
178 | * | 178 | * |
179 | **/ | 179 | **/ |
180 | static __init struct pci_dev *gx_detect_chipset(void) | 180 | static __init struct pci_dev *gx_detect_chipset(void) |
@@ -182,17 +182,16 @@ static __init struct pci_dev *gx_detect_chipset(void) | |||
182 | struct pci_dev *gx_pci = NULL; | 182 | struct pci_dev *gx_pci = NULL; |
183 | 183 | ||
184 | /* check if CPU is a MediaGX or a Geode. */ | 184 | /* check if CPU is a MediaGX or a Geode. */ |
185 | if ((current_cpu_data.x86_vendor != X86_VENDOR_NSC) && | 185 | if ((current_cpu_data.x86_vendor != X86_VENDOR_NSC) && |
186 | (current_cpu_data.x86_vendor != X86_VENDOR_CYRIX)) { | 186 | (current_cpu_data.x86_vendor != X86_VENDOR_CYRIX)) { |
187 | dprintk("error: no MediaGX/Geode processor found!\n"); | 187 | dprintk("error: no MediaGX/Geode processor found!\n"); |
188 | return NULL; | 188 | return NULL; |
189 | } | 189 | } |
190 | 190 | ||
191 | /* detect which companion chip is used */ | 191 | /* detect which companion chip is used */ |
192 | while ((gx_pci = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, gx_pci)) != NULL) { | 192 | while ((gx_pci = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, gx_pci)) != NULL) { |
193 | if ((pci_match_id(gx_chipset_tbl, gx_pci)) != NULL) { | 193 | if ((pci_match_id(gx_chipset_tbl, gx_pci)) != NULL) |
194 | return gx_pci; | 194 | return gx_pci; |
195 | } | ||
196 | } | 195 | } |
197 | 196 | ||
198 | dprintk("error: no supported chipset found!\n"); | 197 | dprintk("error: no supported chipset found!\n"); |
@@ -200,24 +199,24 @@ static __init struct pci_dev *gx_detect_chipset(void) | |||
200 | } | 199 | } |
201 | 200 | ||
202 | /** | 201 | /** |
203 | * gx_get_cpuspeed: | 202 | * gx_get_cpuspeed: |
204 | * | 203 | * |
205 | * Finds out at which efficient frequency the Cyrix MediaGX/NatSemi Geode CPU runs. | 204 | * Finds out at which efficient frequency the Cyrix MediaGX/NatSemi Geode CPU runs. |
206 | */ | 205 | */ |
207 | static unsigned int gx_get_cpuspeed(unsigned int cpu) | 206 | static unsigned int gx_get_cpuspeed(unsigned int cpu) |
208 | { | 207 | { |
209 | if ((gx_params->pci_suscfg & SUSMOD) == 0) | 208 | if ((gx_params->pci_suscfg & SUSMOD) == 0) |
210 | return stock_freq; | 209 | return stock_freq; |
211 | 210 | ||
212 | return (stock_freq * gx_params->off_duration) | 211 | return (stock_freq * gx_params->off_duration) |
213 | / (gx_params->on_duration + gx_params->off_duration); | 212 | / (gx_params->on_duration + gx_params->off_duration); |
214 | } | 213 | } |
215 | 214 | ||
216 | /** | 215 | /** |
217 | * gx_validate_speed: | 216 | * gx_validate_speed: |
218 | * determine current cpu speed | 217 | * determine current cpu speed |
219 | * | 218 | * |
220 | **/ | 219 | **/ |
221 | 220 | ||
222 | static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off_duration) | 221 | static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off_duration) |
223 | { | 222 | { |
@@ -230,7 +229,7 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off | |||
230 | *on_duration=0; | 229 | *on_duration=0; |
231 | 230 | ||
232 | for (i=max_duration; i>0; i--) { | 231 | for (i=max_duration; i>0; i--) { |
233 | tmp_off = ((khz * i) / stock_freq) & 0xff; | 232 | tmp_off = ((khz * i) / stock_freq) & 0xff; |
234 | tmp_on = i - tmp_off; | 233 | tmp_on = i - tmp_off; |
235 | tmp_freq = (stock_freq * tmp_off) / i; | 234 | tmp_freq = (stock_freq * tmp_off) / i; |
236 | /* if this relation is closer to khz, use this. If it's equal, | 235 | /* if this relation is closer to khz, use this. If it's equal, |
@@ -247,18 +246,17 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off | |||
247 | 246 | ||
248 | 247 | ||
249 | /** | 248 | /** |
250 | * gx_set_cpuspeed: | 249 | * gx_set_cpuspeed: |
251 | * set cpu speed in khz. | 250 | * set cpu speed in khz. |
252 | **/ | 251 | **/ |
253 | 252 | ||
254 | static void gx_set_cpuspeed(unsigned int khz) | 253 | static void gx_set_cpuspeed(unsigned int khz) |
255 | { | 254 | { |
256 | u8 suscfg, pmer1; | 255 | u8 suscfg, pmer1; |
257 | unsigned int new_khz; | 256 | unsigned int new_khz; |
258 | unsigned long flags; | 257 | unsigned long flags; |
259 | struct cpufreq_freqs freqs; | 258 | struct cpufreq_freqs freqs; |
260 | 259 | ||
261 | |||
262 | freqs.cpu = 0; | 260 | freqs.cpu = 0; |
263 | freqs.old = gx_get_cpuspeed(0); | 261 | freqs.old = gx_get_cpuspeed(0); |
264 | 262 | ||
@@ -303,18 +301,18 @@ static void gx_set_cpuspeed(unsigned int khz) | |||
303 | pci_write_config_byte(gx_params->cs55x0, PCI_MODOFF, gx_params->off_duration); | 301 | pci_write_config_byte(gx_params->cs55x0, PCI_MODOFF, gx_params->off_duration); |
304 | pci_write_config_byte(gx_params->cs55x0, PCI_MODON, gx_params->on_duration); | 302 | pci_write_config_byte(gx_params->cs55x0, PCI_MODON, gx_params->on_duration); |
305 | 303 | ||
306 | pci_write_config_byte(gx_params->cs55x0, PCI_SUSCFG, suscfg); | 304 | pci_write_config_byte(gx_params->cs55x0, PCI_SUSCFG, suscfg); |
307 | pci_read_config_byte(gx_params->cs55x0, PCI_SUSCFG, &suscfg); | 305 | pci_read_config_byte(gx_params->cs55x0, PCI_SUSCFG, &suscfg); |
308 | 306 | ||
309 | local_irq_restore(flags); | 307 | local_irq_restore(flags); |
310 | 308 | ||
311 | gx_params->pci_suscfg = suscfg; | 309 | gx_params->pci_suscfg = suscfg; |
312 | 310 | ||
313 | cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); | 311 | cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); |
314 | 312 | ||
315 | dprintk("suspend modulation w/ duration of ON:%d us, OFF:%d us\n", | 313 | dprintk("suspend modulation w/ duration of ON:%d us, OFF:%d us\n", |
316 | gx_params->on_duration * 32, gx_params->off_duration * 32); | 314 | gx_params->on_duration * 32, gx_params->off_duration * 32); |
317 | dprintk("suspend modulation w/ clock speed: %d kHz.\n", freqs.new); | 315 | dprintk("suspend modulation w/ clock speed: %d kHz.\n", freqs.new); |
318 | } | 316 | } |
319 | 317 | ||
320 | /**************************************************************** | 318 | /**************************************************************** |
@@ -322,10 +320,10 @@ static void gx_set_cpuspeed(unsigned int khz) | |||
322 | ****************************************************************/ | 320 | ****************************************************************/ |
323 | 321 | ||
324 | /* | 322 | /* |
325 | * cpufreq_gx_verify: test if frequency range is valid | 323 | * cpufreq_gx_verify: test if frequency range is valid |
326 | * | 324 | * |
327 | * This function checks if a given frequency range in kHz is valid | 325 | * This function checks if a given frequency range in kHz is valid |
328 | * for the hardware supported by the driver. | 326 | * for the hardware supported by the driver. |
329 | */ | 327 | */ |
330 | 328 | ||
331 | static int cpufreq_gx_verify(struct cpufreq_policy *policy) | 329 | static int cpufreq_gx_verify(struct cpufreq_policy *policy) |
@@ -333,8 +331,8 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy) | |||
333 | unsigned int tmp_freq = 0; | 331 | unsigned int tmp_freq = 0; |
334 | u8 tmp1, tmp2; | 332 | u8 tmp1, tmp2; |
335 | 333 | ||
336 | if (!stock_freq || !policy) | 334 | if (!stock_freq || !policy) |
337 | return -EINVAL; | 335 | return -EINVAL; |
338 | 336 | ||
339 | policy->cpu = 0; | 337 | policy->cpu = 0; |
340 | cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq); | 338 | cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq); |
@@ -342,14 +340,14 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy) | |||
342 | /* it needs to be assured that at least one supported frequency is | 340 | /* it needs to be assured that at least one supported frequency is |
343 | * within policy->min and policy->max. If it is not, policy->max | 341 | * within policy->min and policy->max. If it is not, policy->max |
344 | * needs to be increased until one freuqency is supported. | 342 | * needs to be increased until one freuqency is supported. |
345 | * policy->min may not be decreased, though. This way we guarantee a | 343 | * policy->min may not be decreased, though. This way we guarantee a |
346 | * specific processing capacity. | 344 | * specific processing capacity. |
347 | */ | 345 | */ |
348 | tmp_freq = gx_validate_speed(policy->min, &tmp1, &tmp2); | 346 | tmp_freq = gx_validate_speed(policy->min, &tmp1, &tmp2); |
349 | if (tmp_freq < policy->min) | 347 | if (tmp_freq < policy->min) |
350 | tmp_freq += stock_freq / max_duration; | 348 | tmp_freq += stock_freq / max_duration; |
351 | policy->min = tmp_freq; | 349 | policy->min = tmp_freq; |
352 | if (policy->min > policy->max) | 350 | if (policy->min > policy->max) |
353 | policy->max = tmp_freq; | 351 | policy->max = tmp_freq; |
354 | tmp_freq = gx_validate_speed(policy->max, &tmp1, &tmp2); | 352 | tmp_freq = gx_validate_speed(policy->max, &tmp1, &tmp2); |
355 | if (tmp_freq > policy->max) | 353 | if (tmp_freq > policy->max) |
@@ -358,12 +356,12 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy) | |||
358 | if (policy->max < policy->min) | 356 | if (policy->max < policy->min) |
359 | policy->max = policy->min; | 357 | policy->max = policy->min; |
360 | cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq); | 358 | cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq); |
361 | 359 | ||
362 | return 0; | 360 | return 0; |
363 | } | 361 | } |
364 | 362 | ||
365 | /* | 363 | /* |
366 | * cpufreq_gx_target: | 364 | * cpufreq_gx_target: |
367 | * | 365 | * |
368 | */ | 366 | */ |
369 | static int cpufreq_gx_target(struct cpufreq_policy *policy, | 367 | static int cpufreq_gx_target(struct cpufreq_policy *policy, |
@@ -373,8 +371,8 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy, | |||
373 | u8 tmp1, tmp2; | 371 | u8 tmp1, tmp2; |
374 | unsigned int tmp_freq; | 372 | unsigned int tmp_freq; |
375 | 373 | ||
376 | if (!stock_freq || !policy) | 374 | if (!stock_freq || !policy) |
377 | return -EINVAL; | 375 | return -EINVAL; |
378 | 376 | ||
379 | policy->cpu = 0; | 377 | policy->cpu = 0; |
380 | 378 | ||
@@ -431,7 +429,7 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy) | |||
431 | return 0; | 429 | return 0; |
432 | } | 430 | } |
433 | 431 | ||
434 | /* | 432 | /* |
435 | * cpufreq_gx_init: | 433 | * cpufreq_gx_init: |
436 | * MediaGX/Geode GX initialize cpufreq driver | 434 | * MediaGX/Geode GX initialize cpufreq driver |
437 | */ | 435 | */ |
@@ -452,7 +450,7 @@ static int __init cpufreq_gx_init(void) | |||
452 | u32 class_rev; | 450 | u32 class_rev; |
453 | 451 | ||
454 | /* Test if we have the right hardware */ | 452 | /* Test if we have the right hardware */ |
455 | if ((gx_pci = gx_detect_chipset()) == NULL) | 453 | if ((gx_pci = gx_detect_chipset()) == NULL) |
456 | return -ENODEV; | 454 | return -ENODEV; |
457 | 455 | ||
458 | /* check whether module parameters are sane */ | 456 | /* check whether module parameters are sane */ |
@@ -478,7 +476,7 @@ static int __init cpufreq_gx_init(void) | |||
478 | pci_read_config_dword(params->cs55x0, PCI_CLASS_REVISION, &class_rev); | 476 | pci_read_config_dword(params->cs55x0, PCI_CLASS_REVISION, &class_rev); |
479 | params->pci_rev = class_rev && 0xff; | 477 | params->pci_rev = class_rev && 0xff; |
480 | 478 | ||
481 | if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) { | 479 | if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) { |
482 | kfree(params); | 480 | kfree(params); |
483 | return ret; /* register error! */ | 481 | return ret; /* register error! */ |
484 | } | 482 | } |
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.h b/arch/i386/kernel/cpu/cpufreq/longhaul.h index 2a495c162ec7..d3a95d77ee85 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.h +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.h | |||
@@ -234,7 +234,7 @@ static int __initdata ezrat_eblcr[32] = { | |||
234 | 234 | ||
235 | /* | 235 | /* |
236 | * VIA C3 Nehemiah */ | 236 | * VIA C3 Nehemiah */ |
237 | 237 | ||
238 | static int __initdata nehemiah_a_clock_ratio[32] = { | 238 | static int __initdata nehemiah_a_clock_ratio[32] = { |
239 | 100, /* 0000 -> 10.0x */ | 239 | 100, /* 0000 -> 10.0x */ |
240 | 160, /* 0001 -> 16.0x */ | 240 | 160, /* 0001 -> 16.0x */ |
@@ -446,7 +446,7 @@ static int __initdata nehemiah_c_eblcr[32] = { | |||
446 | /* end of table */ | 446 | /* end of table */ |
447 | }; | 447 | }; |
448 | 448 | ||
449 | /* | 449 | /* |
450 | * Voltage scales. Div/Mod by 1000 to get actual voltage. | 450 | * Voltage scales. Div/Mod by 1000 to get actual voltage. |
451 | * Which scale to use depends on the VRM type in use. | 451 | * Which scale to use depends on the VRM type in use. |
452 | */ | 452 | */ |
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c index cc73a7ae34bc..0e1fc5c45242 100644 --- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c +++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c | |||
@@ -14,7 +14,7 @@ | |||
14 | * The author(s) of this software shall not be held liable for damages | 14 | * The author(s) of this software shall not be held liable for damages |
15 | * of any nature resulting due to the use of this software. This | 15 | * of any nature resulting due to the use of this software. This |
16 | * software is provided AS-IS with no warranties. | 16 | * software is provided AS-IS with no warranties. |
17 | * | 17 | * |
18 | * Date Errata Description | 18 | * Date Errata Description |
19 | * 20020525 N44, O17 12.5% or 25% DC causes lockup | 19 | * 20020525 N44, O17 12.5% or 25% DC causes lockup |
20 | * | 20 | * |
@@ -22,7 +22,7 @@ | |||
22 | 22 | ||
23 | #include <linux/config.h> | 23 | #include <linux/config.h> |
24 | #include <linux/kernel.h> | 24 | #include <linux/kernel.h> |
25 | #include <linux/module.h> | 25 | #include <linux/module.h> |
26 | #include <linux/init.h> | 26 | #include <linux/init.h> |
27 | #include <linux/smp.h> | 27 | #include <linux/smp.h> |
28 | #include <linux/cpufreq.h> | 28 | #include <linux/cpufreq.h> |
@@ -30,7 +30,7 @@ | |||
30 | #include <linux/cpumask.h> | 30 | #include <linux/cpumask.h> |
31 | #include <linux/sched.h> /* current / set_cpus_allowed() */ | 31 | #include <linux/sched.h> /* current / set_cpus_allowed() */ |
32 | 32 | ||
33 | #include <asm/processor.h> | 33 | #include <asm/processor.h> |
34 | #include <asm/msr.h> | 34 | #include <asm/msr.h> |
35 | #include <asm/timex.h> | 35 | #include <asm/timex.h> |
36 | 36 | ||
@@ -79,7 +79,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) | |||
79 | } else { | 79 | } else { |
80 | dprintk("CPU#%d setting duty cycle to %d%%\n", | 80 | dprintk("CPU#%d setting duty cycle to %d%%\n", |
81 | cpu, ((125 * newstate) / 10)); | 81 | cpu, ((125 * newstate) / 10)); |
82 | /* bits 63 - 5 : reserved | 82 | /* bits 63 - 5 : reserved |
83 | * bit 4 : enable/disable | 83 | * bit 4 : enable/disable |
84 | * bits 3-1 : duty cycle | 84 | * bits 3-1 : duty cycle |
85 | * bit 0 : reserved | 85 | * bit 0 : reserved |
@@ -132,7 +132,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, | |||
132 | } | 132 | } |
133 | 133 | ||
134 | /* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software | 134 | /* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software |
135 | * Developer's Manual, Volume 3 | 135 | * Developer's Manual, Volume 3 |
136 | */ | 136 | */ |
137 | cpus_allowed = current->cpus_allowed; | 137 | cpus_allowed = current->cpus_allowed; |
138 | 138 | ||
@@ -206,7 +206,7 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c) | |||
206 | return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_P4D); | 206 | return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_P4D); |
207 | } | 207 | } |
208 | 208 | ||
209 | 209 | ||
210 | 210 | ||
211 | static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) | 211 | static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) |
212 | { | 212 | { |
@@ -234,7 +234,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) | |||
234 | dprintk("has errata -- disabling frequencies lower than 2ghz\n"); | 234 | dprintk("has errata -- disabling frequencies lower than 2ghz\n"); |
235 | break; | 235 | break; |
236 | } | 236 | } |
237 | 237 | ||
238 | /* get max frequency */ | 238 | /* get max frequency */ |
239 | stock_freq = cpufreq_p4_get_frequency(c); | 239 | stock_freq = cpufreq_p4_get_frequency(c); |
240 | if (!stock_freq) | 240 | if (!stock_freq) |
@@ -250,7 +250,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) | |||
250 | p4clockmod_table[i].frequency = (stock_freq * i)/8; | 250 | p4clockmod_table[i].frequency = (stock_freq * i)/8; |
251 | } | 251 | } |
252 | cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu); | 252 | cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu); |
253 | 253 | ||
254 | /* cpuinfo and default policy values */ | 254 | /* cpuinfo and default policy values */ |
255 | policy->governor = CPUFREQ_DEFAULT_GOVERNOR; | 255 | policy->governor = CPUFREQ_DEFAULT_GOVERNOR; |
256 | policy->cpuinfo.transition_latency = 1000000; /* assumed */ | 256 | policy->cpuinfo.transition_latency = 1000000; /* assumed */ |
@@ -262,7 +262,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) | |||
262 | 262 | ||
263 | static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy) | 263 | static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy) |
264 | { | 264 | { |
265 | cpufreq_frequency_table_put_attr(policy->cpu); | 265 | cpufreq_frequency_table_put_attr(policy->cpu); |
266 | return 0; | 266 | return 0; |
267 | } | 267 | } |
268 | 268 | ||
@@ -298,7 +298,7 @@ static struct freq_attr* p4clockmod_attr[] = { | |||
298 | }; | 298 | }; |
299 | 299 | ||
300 | static struct cpufreq_driver p4clockmod_driver = { | 300 | static struct cpufreq_driver p4clockmod_driver = { |
301 | .verify = cpufreq_p4_verify, | 301 | .verify = cpufreq_p4_verify, |
302 | .target = cpufreq_p4_target, | 302 | .target = cpufreq_p4_target, |
303 | .init = cpufreq_p4_cpu_init, | 303 | .init = cpufreq_p4_cpu_init, |
304 | .exit = cpufreq_p4_cpu_exit, | 304 | .exit = cpufreq_p4_cpu_exit, |
@@ -310,12 +310,12 @@ static struct cpufreq_driver p4clockmod_driver = { | |||
310 | 310 | ||
311 | 311 | ||
312 | static int __init cpufreq_p4_init(void) | 312 | static int __init cpufreq_p4_init(void) |
313 | { | 313 | { |
314 | struct cpuinfo_x86 *c = cpu_data; | 314 | struct cpuinfo_x86 *c = cpu_data; |
315 | int ret; | 315 | int ret; |
316 | 316 | ||
317 | /* | 317 | /* |
318 | * THERM_CONTROL is architectural for IA32 now, so | 318 | * THERM_CONTROL is architectural for IA32 now, so |
319 | * we can rely on the capability checks | 319 | * we can rely on the capability checks |
320 | */ | 320 | */ |
321 | if (c->x86_vendor != X86_VENDOR_INTEL) | 321 | if (c->x86_vendor != X86_VENDOR_INTEL) |
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c index 222f8cfe3c57..f89524051e4a 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c | |||
@@ -8,7 +8,7 @@ | |||
8 | */ | 8 | */ |
9 | 9 | ||
10 | #include <linux/kernel.h> | 10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> | 11 | #include <linux/module.h> |
12 | #include <linux/init.h> | 12 | #include <linux/init.h> |
13 | #include <linux/cpufreq.h> | 13 | #include <linux/cpufreq.h> |
14 | #include <linux/ioport.h> | 14 | #include <linux/ioport.h> |
@@ -50,7 +50,7 @@ static int powernow_k6_get_cpu_multiplier(void) | |||
50 | { | 50 | { |
51 | u64 invalue = 0; | 51 | u64 invalue = 0; |
52 | u32 msrval; | 52 | u32 msrval; |
53 | 53 | ||
54 | msrval = POWERNOW_IOPORT + 0x1; | 54 | msrval = POWERNOW_IOPORT + 0x1; |
55 | wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */ | 55 | wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */ |
56 | invalue=inl(POWERNOW_IOPORT + 0x8); | 56 | invalue=inl(POWERNOW_IOPORT + 0x8); |
@@ -81,7 +81,7 @@ static void powernow_k6_set_state (unsigned int best_i) | |||
81 | freqs.old = busfreq * powernow_k6_get_cpu_multiplier(); | 81 | freqs.old = busfreq * powernow_k6_get_cpu_multiplier(); |
82 | freqs.new = busfreq * clock_ratio[best_i].index; | 82 | freqs.new = busfreq * clock_ratio[best_i].index; |
83 | freqs.cpu = 0; /* powernow-k6.c is UP only driver */ | 83 | freqs.cpu = 0; /* powernow-k6.c is UP only driver */ |
84 | 84 | ||
85 | cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); | 85 | cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); |
86 | 86 | ||
87 | /* we now need to transform best_i to the BVC format, see AMD#23446 */ | 87 | /* we now need to transform best_i to the BVC format, see AMD#23446 */ |
@@ -152,7 +152,7 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy) | |||
152 | busfreq = cpu_khz / max_multiplier; | 152 | busfreq = cpu_khz / max_multiplier; |
153 | 153 | ||
154 | /* table init */ | 154 | /* table init */ |
155 | for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) { | 155 | for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) { |
156 | if (clock_ratio[i].index > max_multiplier) | 156 | if (clock_ratio[i].index > max_multiplier) |
157 | clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID; | 157 | clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID; |
158 | else | 158 | else |
@@ -182,7 +182,7 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy) | |||
182 | powernow_k6_set_state(i); | 182 | powernow_k6_set_state(i); |
183 | } | 183 | } |
184 | cpufreq_frequency_table_put_attr(policy->cpu); | 184 | cpufreq_frequency_table_put_attr(policy->cpu); |
185 | return 0; | 185 | return 0; |
186 | } | 186 | } |
187 | 187 | ||
188 | static unsigned int powernow_k6_get(unsigned int cpu) | 188 | static unsigned int powernow_k6_get(unsigned int cpu) |
@@ -196,8 +196,8 @@ static struct freq_attr* powernow_k6_attr[] = { | |||
196 | }; | 196 | }; |
197 | 197 | ||
198 | static struct cpufreq_driver powernow_k6_driver = { | 198 | static struct cpufreq_driver powernow_k6_driver = { |
199 | .verify = powernow_k6_verify, | 199 | .verify = powernow_k6_verify, |
200 | .target = powernow_k6_target, | 200 | .target = powernow_k6_target, |
201 | .init = powernow_k6_cpu_init, | 201 | .init = powernow_k6_cpu_init, |
202 | .exit = powernow_k6_cpu_exit, | 202 | .exit = powernow_k6_cpu_exit, |
203 | .get = powernow_k6_get, | 203 | .get = powernow_k6_get, |
@@ -215,7 +215,7 @@ static struct cpufreq_driver powernow_k6_driver = { | |||
215 | * on success. | 215 | * on success. |
216 | */ | 216 | */ |
217 | static int __init powernow_k6_init(void) | 217 | static int __init powernow_k6_init(void) |
218 | { | 218 | { |
219 | struct cpuinfo_x86 *c = cpu_data; | 219 | struct cpuinfo_x86 *c = cpu_data; |
220 | 220 | ||
221 | if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) || | 221 | if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) || |
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c index edcd626001da..2bf4237cb94e 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c | |||
@@ -199,8 +199,8 @@ static int get_ranges (unsigned char *pst) | |||
199 | powernow_table[j].index |= (vid << 8); /* upper 8 bits */ | 199 | powernow_table[j].index |= (vid << 8); /* upper 8 bits */ |
200 | 200 | ||
201 | dprintk (" FID: 0x%x (%d.%dx [%dMHz]) " | 201 | dprintk (" FID: 0x%x (%d.%dx [%dMHz]) " |
202 | "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, | 202 | "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, |
203 | fid_codes[fid] % 10, speed/1000, vid, | 203 | fid_codes[fid] % 10, speed/1000, vid, |
204 | mobile_vid_table[vid]/1000, | 204 | mobile_vid_table[vid]/1000, |
205 | mobile_vid_table[vid]%1000); | 205 | mobile_vid_table[vid]%1000); |
206 | } | 206 | } |
@@ -368,8 +368,8 @@ static int powernow_acpi_init(void) | |||
368 | } | 368 | } |
369 | 369 | ||
370 | dprintk (" FID: 0x%x (%d.%dx [%dMHz]) " | 370 | dprintk (" FID: 0x%x (%d.%dx [%dMHz]) " |
371 | "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, | 371 | "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, |
372 | fid_codes[fid] % 10, speed/1000, vid, | 372 | fid_codes[fid] % 10, speed/1000, vid, |
373 | mobile_vid_table[vid]/1000, | 373 | mobile_vid_table[vid]/1000, |
374 | mobile_vid_table[vid]%1000); | 374 | mobile_vid_table[vid]%1000); |
375 | 375 | ||
@@ -460,7 +460,7 @@ static int powernow_decode_bios (int maxfid, int startvid) | |||
460 | (maxfid==pst->maxfid) && (startvid==pst->startvid)) | 460 | (maxfid==pst->maxfid) && (startvid==pst->startvid)) |
461 | { | 461 | { |
462 | dprintk ("PST:%d (@%p)\n", i, pst); | 462 | dprintk ("PST:%d (@%p)\n", i, pst); |
463 | dprintk (" cpuid: 0x%x fsb: %d maxFID: 0x%x startvid: 0x%x\n", | 463 | dprintk (" cpuid: 0x%x fsb: %d maxFID: 0x%x startvid: 0x%x\n", |
464 | pst->cpuid, pst->fsbspeed, pst->maxfid, pst->startvid); | 464 | pst->cpuid, pst->fsbspeed, pst->maxfid, pst->startvid); |
465 | 465 | ||
466 | ret = get_ranges ((char *) pst + sizeof (struct pst_s)); | 466 | ret = get_ranges ((char *) pst + sizeof (struct pst_s)); |
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index 3b3a94987d10..e85e90524df7 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c | |||
@@ -83,11 +83,10 @@ static u32 find_millivolts_from_vid(struct powernow_k8_data *data, u32 vid) | |||
83 | */ | 83 | */ |
84 | static u32 convert_fid_to_vco_fid(u32 fid) | 84 | static u32 convert_fid_to_vco_fid(u32 fid) |
85 | { | 85 | { |
86 | if (fid < HI_FID_TABLE_BOTTOM) { | 86 | if (fid < HI_FID_TABLE_BOTTOM) |
87 | return 8 + (2 * fid); | 87 | return 8 + (2 * fid); |
88 | } else { | 88 | else |
89 | return fid; | 89 | return fid; |
90 | } | ||
91 | } | 90 | } |
92 | 91 | ||
93 | /* | 92 | /* |
@@ -177,7 +176,7 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid) | |||
177 | if (i++ > 100) { | 176 | if (i++ > 100) { |
178 | printk(KERN_ERR PFX "internal error - pending bit very stuck - no further pstate changes possible\n"); | 177 | printk(KERN_ERR PFX "internal error - pending bit very stuck - no further pstate changes possible\n"); |
179 | return 1; | 178 | return 1; |
180 | } | 179 | } |
181 | } while (query_current_values_with_pending_wait(data)); | 180 | } while (query_current_values_with_pending_wait(data)); |
182 | 181 | ||
183 | count_off_irt(data); | 182 | count_off_irt(data); |
@@ -782,9 +781,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) | |||
782 | /* verify only 1 entry from the lo frequency table */ | 781 | /* verify only 1 entry from the lo frequency table */ |
783 | if (fid < HI_FID_TABLE_BOTTOM) { | 782 | if (fid < HI_FID_TABLE_BOTTOM) { |
784 | if (cntlofreq) { | 783 | if (cntlofreq) { |
785 | /* if both entries are the same, ignore this | 784 | /* if both entries are the same, ignore this one ... */ |
786 | * one... | ||
787 | */ | ||
788 | if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) || | 785 | if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) || |
789 | (powernow_table[i].index != powernow_table[cntlofreq].index)) { | 786 | (powernow_table[i].index != powernow_table[cntlofreq].index)) { |
790 | printk(KERN_ERR PFX "Too many lo freq table entries\n"); | 787 | printk(KERN_ERR PFX "Too many lo freq table entries\n"); |
@@ -856,7 +853,7 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde | |||
856 | dprintk("cpu %d transition to index %u\n", smp_processor_id(), index); | 853 | dprintk("cpu %d transition to index %u\n", smp_processor_id(), index); |
857 | 854 | ||
858 | /* fid are the lower 8 bits of the index we stored into | 855 | /* fid are the lower 8 bits of the index we stored into |
859 | * the cpufreq frequency table in find_psb_table, vid are | 856 | * the cpufreq frequency table in find_psb_table, vid are |
860 | * the upper 8 bits. | 857 | * the upper 8 bits. |
861 | */ | 858 | */ |
862 | 859 | ||
@@ -1050,7 +1047,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) | |||
1050 | pol->governor = CPUFREQ_DEFAULT_GOVERNOR; | 1047 | pol->governor = CPUFREQ_DEFAULT_GOVERNOR; |
1051 | pol->cpus = cpu_core_map[pol->cpu]; | 1048 | pol->cpus = cpu_core_map[pol->cpu]; |
1052 | 1049 | ||
1053 | /* Take a crude guess here. | 1050 | /* Take a crude guess here. |
1054 | * That guess was in microseconds, so multiply with 1000 */ | 1051 | * That guess was in microseconds, so multiply with 1000 */ |
1055 | pol->cpuinfo.transition_latency = (((data->rvo + 8) * data->vstable * VST_UNITS_20US) | 1052 | pol->cpuinfo.transition_latency = (((data->rvo + 8) * data->vstable * VST_UNITS_20US) |
1056 | + (3 * (1 << data->irt) * 10)) * 1000; | 1053 | + (3 * (1 << data->irt) * 10)) * 1000; |
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h index d0de37d58e9a..00ea899c17e1 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h | |||
@@ -63,7 +63,7 @@ struct powernow_k8_data { | |||
63 | #define MSR_C_LO_VID_SHIFT 8 | 63 | #define MSR_C_LO_VID_SHIFT 8 |
64 | 64 | ||
65 | /* Field definitions within the FID VID High Control MSR : */ | 65 | /* Field definitions within the FID VID High Control MSR : */ |
66 | #define MSR_C_HI_STP_GNT_TO 0x000fffff | 66 | #define MSR_C_HI_STP_GNT_TO 0x000fffff |
67 | 67 | ||
68 | /* Field definitions within the FID VID Low Status MSR : */ | 68 | /* Field definitions within the FID VID Low Status MSR : */ |
69 | #define MSR_S_LO_CHANGE_PENDING 0x80000000 /* cleared when completed */ | 69 | #define MSR_S_LO_CHANGE_PENDING 0x80000000 /* cleared when completed */ |
@@ -123,7 +123,7 @@ struct powernow_k8_data { | |||
123 | * Most values of interest are enocoded in a single field of the _PSS | 123 | * Most values of interest are enocoded in a single field of the _PSS |
124 | * entries: the "control" value. | 124 | * entries: the "control" value. |
125 | */ | 125 | */ |
126 | 126 | ||
127 | #define IRT_SHIFT 30 | 127 | #define IRT_SHIFT 30 |
128 | #define RVO_SHIFT 28 | 128 | #define RVO_SHIFT 28 |
129 | #define EXT_TYPE_SHIFT 27 | 129 | #define EXT_TYPE_SHIFT 27 |
@@ -185,7 +185,7 @@ static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned | |||
185 | #ifndef for_each_cpu_mask | 185 | #ifndef for_each_cpu_mask |
186 | #define for_each_cpu_mask(i,mask) for (i=0;i<1;i++) | 186 | #define for_each_cpu_mask(i,mask) for (i=0;i<1;i++) |
187 | #endif | 187 | #endif |
188 | 188 | ||
189 | #ifdef CONFIG_SMP | 189 | #ifdef CONFIG_SMP |
190 | static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[]) | 190 | static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[]) |
191 | { | 191 | { |
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c index 7c47005a1805..4f46cac155c4 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c | |||
@@ -9,7 +9,7 @@ | |||
9 | */ | 9 | */ |
10 | 10 | ||
11 | #include <linux/kernel.h> | 11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> | 12 | #include <linux/module.h> |
13 | #include <linux/moduleparam.h> | 13 | #include <linux/moduleparam.h> |
14 | #include <linux/init.h> | 14 | #include <linux/init.h> |
15 | #include <linux/cpufreq.h> | 15 | #include <linux/cpufreq.h> |
@@ -36,8 +36,8 @@ static unsigned int pentium3_get_frequency (unsigned int processor) | |||
36 | /* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */ | 36 | /* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */ |
37 | struct { | 37 | struct { |
38 | unsigned int ratio; /* Frequency Multiplier (x10) */ | 38 | unsigned int ratio; /* Frequency Multiplier (x10) */ |
39 | u8 bitmap; /* power on configuration bits | 39 | u8 bitmap; /* power on configuration bits |
40 | [27, 25:22] (in MSR 0x2a) */ | 40 | [27, 25:22] (in MSR 0x2a) */ |
41 | } msr_decode_mult [] = { | 41 | } msr_decode_mult [] = { |
42 | { 30, 0x01 }, | 42 | { 30, 0x01 }, |
43 | { 35, 0x05 }, | 43 | { 35, 0x05 }, |
@@ -58,9 +58,9 @@ static unsigned int pentium3_get_frequency (unsigned int processor) | |||
58 | 58 | ||
59 | /* PIII(-M) FSB settings: see table b1-b of 24547206.pdf */ | 59 | /* PIII(-M) FSB settings: see table b1-b of 24547206.pdf */ |
60 | struct { | 60 | struct { |
61 | unsigned int value; /* Front Side Bus speed in MHz */ | 61 | unsigned int value; /* Front Side Bus speed in MHz */ |
62 | u8 bitmap; /* power on configuration bits [18: 19] | 62 | u8 bitmap; /* power on configuration bits [18: 19] |
63 | (in MSR 0x2a) */ | 63 | (in MSR 0x2a) */ |
64 | } msr_decode_fsb [] = { | 64 | } msr_decode_fsb [] = { |
65 | { 66, 0x0 }, | 65 | { 66, 0x0 }, |
66 | { 100, 0x2 }, | 66 | { 100, 0x2 }, |
@@ -68,8 +68,8 @@ static unsigned int pentium3_get_frequency (unsigned int processor) | |||
68 | { 0, 0xff} | 68 | { 0, 0xff} |
69 | }; | 69 | }; |
70 | 70 | ||
71 | u32 msr_lo, msr_tmp; | 71 | u32 msr_lo, msr_tmp; |
72 | int i = 0, j = 0; | 72 | int i = 0, j = 0; |
73 | 73 | ||
74 | /* read MSR 0x2a - we only need the low 32 bits */ | 74 | /* read MSR 0x2a - we only need the low 32 bits */ |
75 | rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); | 75 | rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); |
@@ -106,7 +106,7 @@ static unsigned int pentium3_get_frequency (unsigned int processor) | |||
106 | 106 | ||
107 | static unsigned int pentiumM_get_frequency(void) | 107 | static unsigned int pentiumM_get_frequency(void) |
108 | { | 108 | { |
109 | u32 msr_lo, msr_tmp; | 109 | u32 msr_lo, msr_tmp; |
110 | 110 | ||
111 | rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); | 111 | rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); |
112 | dprintk("PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); | 112 | dprintk("PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); |
@@ -134,7 +134,7 @@ static unsigned int pentium4_get_frequency(void) | |||
134 | 134 | ||
135 | dprintk("P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi); | 135 | dprintk("P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi); |
136 | 136 | ||
137 | /* decode the FSB: see IA-32 Intel (C) Architecture Software | 137 | /* decode the FSB: see IA-32 Intel (C) Architecture Software |
138 | * Developer's Manual, Volume 3: System Prgramming Guide, | 138 | * Developer's Manual, Volume 3: System Prgramming Guide, |
139 | * revision #12 in Table B-1: MSRs in the Pentium 4 and | 139 | * revision #12 in Table B-1: MSRs in the Pentium 4 and |
140 | * Intel Xeon Processors, on page B-4 and B-5. | 140 | * Intel Xeon Processors, on page B-4 and B-5. |
@@ -170,7 +170,7 @@ static unsigned int pentium4_get_frequency(void) | |||
170 | return (fsb * mult); | 170 | return (fsb * mult); |
171 | } | 171 | } |
172 | 172 | ||
173 | 173 | ||
174 | unsigned int speedstep_get_processor_frequency(unsigned int processor) | 174 | unsigned int speedstep_get_processor_frequency(unsigned int processor) |
175 | { | 175 | { |
176 | switch (processor) { | 176 | switch (processor) { |
@@ -198,11 +198,11 @@ EXPORT_SYMBOL_GPL(speedstep_get_processor_frequency); | |||
198 | unsigned int speedstep_detect_processor (void) | 198 | unsigned int speedstep_detect_processor (void) |
199 | { | 199 | { |
200 | struct cpuinfo_x86 *c = cpu_data; | 200 | struct cpuinfo_x86 *c = cpu_data; |
201 | u32 ebx, msr_lo, msr_hi; | 201 | u32 ebx, msr_lo, msr_hi; |
202 | 202 | ||
203 | dprintk("x86: %x, model: %x\n", c->x86, c->x86_model); | 203 | dprintk("x86: %x, model: %x\n", c->x86, c->x86_model); |
204 | 204 | ||
205 | if ((c->x86_vendor != X86_VENDOR_INTEL) || | 205 | if ((c->x86_vendor != X86_VENDOR_INTEL) || |
206 | ((c->x86 != 6) && (c->x86 != 0xF))) | 206 | ((c->x86 != 6) && (c->x86 != 0xF))) |
207 | return 0; | 207 | return 0; |
208 | 208 | ||
@@ -218,15 +218,15 @@ unsigned int speedstep_detect_processor (void) | |||
218 | dprintk("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask); | 218 | dprintk("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask); |
219 | 219 | ||
220 | switch (c->x86_mask) { | 220 | switch (c->x86_mask) { |
221 | case 4: | 221 | case 4: |
222 | /* | 222 | /* |
223 | * B-stepping [M-P4-M] | 223 | * B-stepping [M-P4-M] |
224 | * sample has ebx = 0x0f, production has 0x0e. | 224 | * sample has ebx = 0x0f, production has 0x0e. |
225 | */ | 225 | */ |
226 | if ((ebx == 0x0e) || (ebx == 0x0f)) | 226 | if ((ebx == 0x0e) || (ebx == 0x0f)) |
227 | return SPEEDSTEP_PROCESSOR_P4M; | 227 | return SPEEDSTEP_PROCESSOR_P4M; |
228 | break; | 228 | break; |
229 | case 7: | 229 | case 7: |
230 | /* | 230 | /* |
231 | * C-stepping [M-P4-M] | 231 | * C-stepping [M-P4-M] |
232 | * needs to have ebx=0x0e, else it's a celeron: | 232 | * needs to have ebx=0x0e, else it's a celeron: |
@@ -253,7 +253,7 @@ unsigned int speedstep_detect_processor (void) | |||
253 | * also, M-P4M HTs have ebx=0x8, too | 253 | * also, M-P4M HTs have ebx=0x8, too |
254 | * For now, they are distinguished by the model_id string | 254 | * For now, they are distinguished by the model_id string |
255 | */ | 255 | */ |
256 | if ((ebx == 0x0e) || (strstr(c->x86_model_id,"Mobile Intel(R) Pentium(R) 4") != NULL)) | 256 | if ((ebx == 0x0e) || (strstr(c->x86_model_id,"Mobile Intel(R) Pentium(R) 4") != NULL)) |
257 | return SPEEDSTEP_PROCESSOR_P4M; | 257 | return SPEEDSTEP_PROCESSOR_P4M; |
258 | break; | 258 | break; |
259 | default: | 259 | default: |
@@ -264,8 +264,7 @@ unsigned int speedstep_detect_processor (void) | |||
264 | 264 | ||
265 | switch (c->x86_model) { | 265 | switch (c->x86_model) { |
266 | case 0x0B: /* Intel PIII [Tualatin] */ | 266 | case 0x0B: /* Intel PIII [Tualatin] */ |
267 | /* cpuid_ebx(1) is 0x04 for desktop PIII, | 267 | /* cpuid_ebx(1) is 0x04 for desktop PIII, 0x06 for mobile PIII-M */ |
268 | 0x06 for mobile PIII-M */ | ||
269 | ebx = cpuid_ebx(0x00000001); | 268 | ebx = cpuid_ebx(0x00000001); |
270 | dprintk("ebx is %x\n", ebx); | 269 | dprintk("ebx is %x\n", ebx); |
271 | 270 | ||
@@ -275,9 +274,8 @@ unsigned int speedstep_detect_processor (void) | |||
275 | return 0; | 274 | return 0; |
276 | 275 | ||
277 | /* So far all PIII-M processors support SpeedStep. See | 276 | /* So far all PIII-M processors support SpeedStep. See |
278 | * Intel's 24540640.pdf of June 2003 | 277 | * Intel's 24540640.pdf of June 2003 |
279 | */ | 278 | */ |
280 | |||
281 | return SPEEDSTEP_PROCESSOR_PIII_T; | 279 | return SPEEDSTEP_PROCESSOR_PIII_T; |
282 | 280 | ||
283 | case 0x08: /* Intel PIII [Coppermine] */ | 281 | case 0x08: /* Intel PIII [Coppermine] */ |
@@ -399,7 +397,7 @@ unsigned int speedstep_get_freqs(unsigned int processor, | |||
399 | } | 397 | } |
400 | } | 398 | } |
401 | 399 | ||
402 | out: | 400 | out: |
403 | local_irq_restore(flags); | 401 | local_irq_restore(flags); |
404 | return (ret); | 402 | return (ret); |
405 | } | 403 | } |
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h index 6a727fd3a77e..b735429c50b4 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h | |||
@@ -14,7 +14,7 @@ | |||
14 | 14 | ||
15 | #define SPEEDSTEP_PROCESSOR_PIII_C_EARLY 0x00000001 /* Coppermine core */ | 15 | #define SPEEDSTEP_PROCESSOR_PIII_C_EARLY 0x00000001 /* Coppermine core */ |
16 | #define SPEEDSTEP_PROCESSOR_PIII_C 0x00000002 /* Coppermine core */ | 16 | #define SPEEDSTEP_PROCESSOR_PIII_C 0x00000002 /* Coppermine core */ |
17 | #define SPEEDSTEP_PROCESSOR_PIII_T 0x00000003 /* Tualatin core */ | 17 | #define SPEEDSTEP_PROCESSOR_PIII_T 0x00000003 /* Tualatin core */ |
18 | #define SPEEDSTEP_PROCESSOR_P4M 0x00000004 /* P4-M */ | 18 | #define SPEEDSTEP_PROCESSOR_P4M 0x00000004 /* P4-M */ |
19 | 19 | ||
20 | /* the following processors are not speedstep-capable and are not auto-detected | 20 | /* the following processors are not speedstep-capable and are not auto-detected |
@@ -25,8 +25,8 @@ | |||
25 | 25 | ||
26 | /* speedstep states -- only two of them */ | 26 | /* speedstep states -- only two of them */ |
27 | 27 | ||
28 | #define SPEEDSTEP_HIGH 0x00000000 | 28 | #define SPEEDSTEP_HIGH 0x00000000 |
29 | #define SPEEDSTEP_LOW 0x00000001 | 29 | #define SPEEDSTEP_LOW 0x00000001 |
30 | 30 | ||
31 | 31 | ||
32 | /* detect a speedstep-capable processor */ | 32 | /* detect a speedstep-capable processor */ |
@@ -36,13 +36,13 @@ extern unsigned int speedstep_detect_processor (void); | |||
36 | extern unsigned int speedstep_get_processor_frequency(unsigned int processor); | 36 | extern unsigned int speedstep_get_processor_frequency(unsigned int processor); |
37 | 37 | ||
38 | 38 | ||
39 | /* detect the low and high speeds of the processor. The callback | 39 | /* detect the low and high speeds of the processor. The callback |
40 | * set_state"'s first argument is either SPEEDSTEP_HIGH or | 40 | * set_state"'s first argument is either SPEEDSTEP_HIGH or |
41 | * SPEEDSTEP_LOW; the second argument is zero so that no | 41 | * SPEEDSTEP_LOW; the second argument is zero so that no |
42 | * cpufreq_notify_transition calls are initiated. | 42 | * cpufreq_notify_transition calls are initiated. |
43 | */ | 43 | */ |
44 | extern unsigned int speedstep_get_freqs(unsigned int processor, | 44 | extern unsigned int speedstep_get_freqs(unsigned int processor, |
45 | unsigned int *low_speed, | 45 | unsigned int *low_speed, |
46 | unsigned int *high_speed, | 46 | unsigned int *high_speed, |
47 | unsigned int *transition_latency, | 47 | unsigned int *transition_latency, |
48 | void (*set_state) (unsigned int state)); | 48 | void (*set_state) (unsigned int state)); |
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c index 28cc5d524afc..336ba49e526d 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c | |||
@@ -13,8 +13,8 @@ | |||
13 | *********************************************************************/ | 13 | *********************************************************************/ |
14 | 14 | ||
15 | #include <linux/kernel.h> | 15 | #include <linux/kernel.h> |
16 | #include <linux/module.h> | 16 | #include <linux/module.h> |
17 | #include <linux/moduleparam.h> | 17 | #include <linux/moduleparam.h> |
18 | #include <linux/init.h> | 18 | #include <linux/init.h> |
19 | #include <linux/cpufreq.h> | 19 | #include <linux/cpufreq.h> |
20 | #include <linux/pci.h> | 20 | #include <linux/pci.h> |
@@ -28,21 +28,21 @@ | |||
28 | * | 28 | * |
29 | * These parameters are got from IST-SMI BIOS call. | 29 | * These parameters are got from IST-SMI BIOS call. |
30 | * If user gives it, these are used. | 30 | * If user gives it, these are used. |
31 | * | 31 | * |
32 | */ | 32 | */ |
33 | static int smi_port = 0; | 33 | static int smi_port = 0; |
34 | static int smi_cmd = 0; | 34 | static int smi_cmd = 0; |
35 | static unsigned int smi_sig = 0; | 35 | static unsigned int smi_sig = 0; |
36 | 36 | ||
37 | /* info about the processor */ | 37 | /* info about the processor */ |
38 | static unsigned int speedstep_processor = 0; | 38 | static unsigned int speedstep_processor = 0; |
39 | 39 | ||
40 | /* | 40 | /* |
41 | * There are only two frequency states for each processor. Values | 41 | * There are only two frequency states for each processor. Values |
42 | * are in kHz for the time being. | 42 | * are in kHz for the time being. |
43 | */ | 43 | */ |
44 | static struct cpufreq_frequency_table speedstep_freqs[] = { | 44 | static struct cpufreq_frequency_table speedstep_freqs[] = { |
45 | {SPEEDSTEP_HIGH, 0}, | 45 | {SPEEDSTEP_HIGH, 0}, |
46 | {SPEEDSTEP_LOW, 0}, | 46 | {SPEEDSTEP_LOW, 0}, |
47 | {0, CPUFREQ_TABLE_END}, | 47 | {0, CPUFREQ_TABLE_END}, |
48 | }; | 48 | }; |
@@ -123,7 +123,7 @@ static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high) | |||
123 | *low = low_mhz * 1000; | 123 | *low = low_mhz * 1000; |
124 | 124 | ||
125 | return result; | 125 | return result; |
126 | } | 126 | } |
127 | 127 | ||
128 | /** | 128 | /** |
129 | * speedstep_get_state - set the SpeedStep state | 129 | * speedstep_get_state - set the SpeedStep state |
@@ -204,7 +204,7 @@ static void speedstep_set_state (unsigned int state) | |||
204 | * speedstep_target - set a new CPUFreq policy | 204 | * speedstep_target - set a new CPUFreq policy |
205 | * @policy: new policy | 205 | * @policy: new policy |
206 | * @target_freq: new freq | 206 | * @target_freq: new freq |
207 | * @relation: | 207 | * @relation: |
208 | * | 208 | * |
209 | * Sets a new CPUFreq policy/freq. | 209 | * Sets a new CPUFreq policy/freq. |
210 | */ | 210 | */ |
@@ -283,7 +283,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) | |||
283 | state = speedstep_get_state(); | 283 | state = speedstep_get_state(); |
284 | speed = speedstep_freqs[state].frequency; | 284 | speed = speedstep_freqs[state].frequency; |
285 | 285 | ||
286 | dprintk("currently at %s speed setting - %i MHz\n", | 286 | dprintk("currently at %s speed setting - %i MHz\n", |
287 | (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) ? "low" : "high", | 287 | (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) ? "low" : "high", |
288 | (speed / 1000)); | 288 | (speed / 1000)); |
289 | 289 | ||
@@ -296,7 +296,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) | |||
296 | if (result) | 296 | if (result) |
297 | return (result); | 297 | return (result); |
298 | 298 | ||
299 | cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu); | 299 | cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu); |
300 | 300 | ||
301 | return 0; | 301 | return 0; |
302 | } | 302 | } |
@@ -332,8 +332,8 @@ static struct freq_attr* speedstep_attr[] = { | |||
332 | 332 | ||
333 | static struct cpufreq_driver speedstep_driver = { | 333 | static struct cpufreq_driver speedstep_driver = { |
334 | .name = "speedstep-smi", | 334 | .name = "speedstep-smi", |
335 | .verify = speedstep_verify, | 335 | .verify = speedstep_verify, |
336 | .target = speedstep_target, | 336 | .target = speedstep_target, |
337 | .init = speedstep_cpu_init, | 337 | .init = speedstep_cpu_init, |
338 | .exit = speedstep_cpu_exit, | 338 | .exit = speedstep_cpu_exit, |
339 | .get = speedstep_get, | 339 | .get = speedstep_get, |
@@ -370,13 +370,12 @@ static int __init speedstep_init(void) | |||
370 | return -ENODEV; | 370 | return -ENODEV; |
371 | } | 371 | } |
372 | 372 | ||
373 | dprintk("signature:0x%.8lx, command:0x%.8lx, event:0x%.8lx, perf_level:0x%.8lx.\n", | 373 | dprintk("signature:0x%.8lx, command:0x%.8lx, event:0x%.8lx, perf_level:0x%.8lx.\n", |
374 | ist_info.signature, ist_info.command, ist_info.event, ist_info.perf_level); | 374 | ist_info.signature, ist_info.command, ist_info.event, ist_info.perf_level); |
375 | 375 | ||
376 | 376 | /* Error if no IST-SMI BIOS or no PARM | |
377 | /* Error if no IST-SMI BIOS or no PARM | ||
378 | sig= 'ISGE' aka 'Intel Speedstep Gate E' */ | 377 | sig= 'ISGE' aka 'Intel Speedstep Gate E' */ |
379 | if ((ist_info.signature != 0x47534943) && ( | 378 | if ((ist_info.signature != 0x47534943) && ( |
380 | (smi_port == 0) || (smi_cmd == 0))) | 379 | (smi_port == 0) || (smi_cmd == 0))) |
381 | return -ENODEV; | 380 | return -ENODEV; |
382 | 381 | ||
@@ -386,17 +385,15 @@ static int __init speedstep_init(void) | |||
386 | smi_sig = ist_info.signature; | 385 | smi_sig = ist_info.signature; |
387 | 386 | ||
388 | /* setup smi_port from MODLULE_PARM or BIOS */ | 387 | /* setup smi_port from MODLULE_PARM or BIOS */ |
389 | if ((smi_port > 0xff) || (smi_port < 0)) { | 388 | if ((smi_port > 0xff) || (smi_port < 0)) |
390 | return -EINVAL; | 389 | return -EINVAL; |
391 | } else if (smi_port == 0) { | 390 | else if (smi_port == 0) |
392 | smi_port = ist_info.command & 0xff; | 391 | smi_port = ist_info.command & 0xff; |
393 | } | ||
394 | 392 | ||
395 | if ((smi_cmd > 0xff) || (smi_cmd < 0)) { | 393 | if ((smi_cmd > 0xff) || (smi_cmd < 0)) |
396 | return -EINVAL; | 394 | return -EINVAL; |
397 | } else if (smi_cmd == 0) { | 395 | else if (smi_cmd == 0) |
398 | smi_cmd = (ist_info.command >> 16) & 0xff; | 396 | smi_cmd = (ist_info.command >> 16) & 0xff; |
399 | } | ||
400 | 397 | ||
401 | return cpufreq_register_driver(&speedstep_driver); | 398 | return cpufreq_register_driver(&speedstep_driver); |
402 | } | 399 | } |