[TOOL] guestekrnL doItYourself STOCK KERNEL BUILDER for dummies - MAKE UR OWN KERNEL!

ghadap · May 28, 2012

Well.. i'll try to digest all your explanation.. (start to have headache already.. :what

Anyway, great post..

Sent from my LG-P990 using XDA

franky_z · May 28, 2012

3 letters: W-O-W!!!

Gesendet von meinem Optimus 2X mit Tapatalk

Stefan Gündhör · May 28, 2012

ghadap said:
Well.. i'll try to digest all your explanation.. (start to have headache already.. :what

Anyway, great post..

Sent from my LG-P990 using XDA

It's hard to compress everything in one post, but I think I'm done now

Just take your time, begin with only compiling the kernel without changes (and try if it boots) and then slowly change more and more stuff, don't change too many things at once, always compile&try the kernel between more changes.

Also take a look at my additional hints, using versioning is very useful for keeping overview over changes and comparing the guestekrnL sources with original stock kernel sources using a diff viewer can help understanding which kernel values/source code custom kernel DEVs change in order to make their custom kernels.

Stefan Gündhör · May 28, 2012

TrymHansen said:
Downloaded from Google Docs and unpacked without incident. Now compiling under VirtualBox, which also worked without any modification.

...and as I was writing this it finished. Whole compilation job took less than 2 mins on a 4-core VM. ;-)

Very nice!

Stefan Gündhör · May 29, 2012

Explaination of values in the files guestekrnl.c, guestekrnl.h and nvrm_clocks_limits.c:

guestekrnl.c
-------------------------------------

GUESTE_USE_FSYNC = 1; -> should fsync be used by default? values 0 or 1
NVRM_CPU1_ON_MIN_KHZ = 366000; -> frequency (366MHz) where second core should be turned off when it was running and cpu freq is lower than this freq for a time of 600 milliseconds (NVRM_CPU1_OFF_PENDING_MS)
NVRM_CPU1_OFF_MAX_KHZ = 666000; -> frequency (666MHz) where second core should be turned on when it was off and cpu freq is higher than this freq for a time of 2000 milliseconds (NVRM_CPU1_ON_PENDING_MS)
NVRM_CPU1_ON_PENDING_MS = 2000; // time for the things above in milliseconds
NVRM_CPU1_OFF_PENDING_MS = 600; // time for the things above in milliseconds
AUTO_SECONDCORE_LIMITS = 0; // should second core activation values be calculated intelligently by default instead of using the fixed values above? values 0 or 1
GUESTE_USE_SECOND_CORE = 1; // should second core be used by default? values 0 or 1
LED_BUTTON_BRIGHTNESS = 8; // default value for LED button brightness - values 0-100, but I fear the default is also on another place hard-coded so changes won't help
AUTO_BACKLIGHT_BRIGHTNESS = 6; // default step for the auto brightness intensity (this is stock default), dunno if changes here make any difference
MAX_SCREENOFF_CPUFREQ = 503000; // max default screenOff cpu frequency (=503 MHz)
MAX_CPU_SCALING_FREQ = 1000000; // default maximum cpu frequency (=1000 MHz), if you change this, remove the file Desktop/kernel_source/zipstructure/data/gueste2/oc/maxcpufreq in order to use the default kernel speed right at kernel boot (the file maxcpufreq also contains the value 1000000, this is the value GuesteOC tool will set the kernel to at boot, removing the file means GuesteOC does not change default kernel speed)
MIN_CPU_SCALING_FREQ = 216000; // default minimum cpu frequency (=216 MHz)
unsigned int STRONG_HAPTIC_VIBRATION = 0; // default value for strong vibration -- values 0 or 1
unsigned int STRONG_RINGING_VIBRATION = 1; // default value for incoming call vibration -- values 0 or 1

guestekrnl.h - Explainations will come soon!
-------------------------------------

// Second Core Activation Auto Limits Multiplikator

#define G_SECCORE_MULT (6)

// Clocking & Volting

#define MAX_OVERCLOCK (1300000)
#define MAX_VOLTAGE (1150)
#define GUESTE_DDR_FREQ_STATIC (325000)
#define GUESTE_EMC_VOLT (1200)
#define NVRM_AP20_LOW_CORE_MV (850)
#define NVRM_AP20_LOW_CPU_MV (750)
#define NVRM_AP20_SUSPEND_CORE_MV (900)
#define NVRM_AP20_DDR2_MIN_KHZ (50000)
#define NVRM_AP20_LPDDR2_MIN_KHZ (18000)
#define GUESTE_AVP_FREQ (280000)
#define GUESTE_EMC2_FREQ (660000)
#define GUESTE_GPU_FREQ (345000)
#define GUESTE_DDR_FREQ (325000)

// Scheduler

#define sysctl_sched_latency_default 10000000ULL
#define normalized_sysctl_sched_latency_default 10000000ULL
#define sysctl_sched_min_granularity_default 2000000ULL
#define normalized_sysctl_sched_min_granularity_default 2000000ULL
#define sched_nr_latency_default 5
#define sysctl_sched_wakeup_granularity_default 2000000UL
#define normalized_sysctl_sched_wakeup_granularity_default 2000000UL

Desktop/kernel_source/arch/arm/mach-tegra/nvrm/core/common/nvrm_clocks_limits.c - Explainations will come soon!
-------------------------------------

NvU32 FakeShmooVoltages[] = {
755,
770,
800,
850,
900,
1000,
1050,
MAX_VOLTAGE,
};
NvRmScaledClkLimits FakepScaledCpuLimits = {
101, // FakepScaledCpuLimits.HwDeviceId
0, // FakepScaledCpuLimits.SubClockId
32, // FakepScaledCpuLimits.MinKHz
// Clock table
{
216000,
389000,
503000,
655000,
816000,
1000000,
1100000,
MAX_OVERCLOCK,
}
};

spica1234 · May 29, 2012

Mention where guesete.c and gueste.h came from.
Mention credits to Original Author of OTF

Stefan Gündhör said:
Explaination of values in the files guestekrnl.c, guestekrnl.h and nvrm_clocks_limits.c:

guestekrnl.c
-------------------------------------

GUESTE_USE_FSYNC = 1; -> should fsync be used by default? values 0 or 1

NVRM_CPU1_ON_MIN_KHZ = 366000; -> frequency (366MHz) where second core should be turned off when it was running and cpu freq is lower than this freq for a time of 600 milliseconds (NVRM_CPU1_OFF_PENDING_MS)

NVRM_CPU1_OFF_MAX_KHZ = 666000; -> frequency (666MHz) where second core should be turned on when it was off and cpu freq is higher than this freq for a time of 2000 milliseconds (NVRM_CPU1_ON_PENDING_MS)

NVRM_CPU1_ON_PENDING_MS = 2000; // time for the things above in milliseconds

NVRM_CPU1_OFF_PENDING_MS = 600; // time for the things above in milliseconds

AUTO_SECONDCORE_LIMITS = 0; // should second core activation values be calculated intelligently by default instead of using the fixed values above? values 0 or 1

GUESTE_USE_SECOND_CORE = 1; // should second core be used by default? values 0 or 1

LED_BUTTON_BRIGHTNESS = 8; // default value for LED button brightness - values 0-100, but I fear the default is also on another place hard-coded so changes won't help

AUTO_BACKLIGHT_BRIGHTNESS = 6; // default step for the auto brightness intensity (this is stock default), dunno if changes here make any difference

MAX_SCREENOFF_CPUFREQ = 503000; // max default screenOff cpu frequency (=503 MHz)

MAX_CPU_SCALING_FREQ = 1000000; // default maximum cpu frequency (=1000 MHz), if you change this, remove the file Desktop/kernel_source/zipstructure/data/gueste2/oc/maxcpufreq in order to use the default kernel speed right at kernel boot (the file maxcpufreq also contains the value 1000000, this is the value GuesteOC tool will set the kernel to at boot, removing the file means GuesteOC does not change default kernel speed)

MIN_CPU_SCALING_FREQ = 216000; // default minimum cpu frequency (=216 MHz)

unsigned int STRONG_HAPTIC_VIBRATION = 0; // default value for strong vibration -- values 0 or 1

unsigned int STRONG_RINGING_VIBRATION = 1; // default value for incoming call vibration -- values 0 or 1

guestekrnl.h - Explainations will come soon!
-------------------------------------

// Second Core Activation Auto Limits Multiplikator

#define G_SECCORE_MULT (6)

// Clocking & Volting

#define MAX_OVERCLOCK (1300000)

#define MAX_VOLTAGE (1150)

#define GUESTE_DDR_FREQ_STATIC (325000)

#define GUESTE_EMC_VOLT (1200)

#define NVRM_AP20_LOW_CORE_MV (850)

#define NVRM_AP20_LOW_CPU_MV (750)

#define NVRM_AP20_SUSPEND_CORE_MV (900)

#define NVRM_AP20_DDR2_MIN_KHZ (50000)

#define NVRM_AP20_LPDDR2_MIN_KHZ (18000)

#define GUESTE_AVP_FREQ (280000)

#define GUESTE_EMC2_FREQ (660000)

#define GUESTE_GPU_FREQ (345000)

#define GUESTE_DDR_FREQ (325000)

// Scheduler

#define sysctl_sched_latency_default 10000000ULL

#define normalized_sysctl_sched_latency_default 10000000ULL

#define sysctl_sched_min_granularity_default 2000000ULL

#define normalized_sysctl_sched_min_granularity_default 2000000ULL

#define sched_nr_latency_default 5

#define sysctl_sched_wakeup_granularity_default 2000000UL

#define normalized_sysctl_sched_wakeup_granularity_default 2000000UL

Desktop/kernel_source/arch/arm/mach-tegra/nvrm/core/common/nvrm_clocks_limits.c - Explainations will come soon!
-------------------------------------

NvU32 FakeShmooVoltages[] = {
755,
770,
800,
850,
900,
1000,
1050,
MAX_VOLTAGE,
};

NvRmScaledClkLimits FakepScaledCpuLimits = {
101, // FakepScaledCpuLimits.HwDeviceId
0, // FakepScaledCpuLimits.SubClockId
32, // FakepScaledCpuLimits.MinKHz
// Clock table
{
216000,
389000,
503000,
655000,
816000,
1000000,
1100000,
MAX_OVERCLOCK,
}
};

Stefan Gündhör · May 29, 2012

spica1234 said:
Mention where guesete.c and gueste.h came from.
Mention credits to Original Author of OTF

Not necessary as the credit to OTF has been already given to you during kernel development and in kernel releases multiple times. Everyone already knows you made the 20 lines code for OTF.

Apart from this the things I posted and you quoted are only containing variables and none of your OTF logic. You can't get credit for variables bro

spica1234 · May 29, 2012

Stefan Gündhör said:
Not necessary as the credit to OTF has been already given to you during kernel development and in kernel releases multiple times. Everyone already knows you made the 20 lines code for OTF.

Apart from this the things I posted and you quoted are only containing variables and none of your OTF logic. You can't get credit for variables bro

Yes this public bash you wrote http://xdaforums.com/showthread.php?p=25503366#post25503366
No offence,
Yes not 20 but 50 liines OTF that you couldnt make because lack of knwoledge of C thats why i had to write as per my C knowledge

Whether it's writing of 50 lines or 10 lines it requires knowledge that you dont have

it's not "hi" "how are you" whats up" kind of 50 lines, whether it needs writing of 10-50 or 1 lines it needs knowledge of the same

eg. to check grammer mistakes you need to have knowledge of grammer

and Oh my GOD i know you've no knowledsge of C that why you wrote variables. For you everything written is variables cause you know nothing except it.
Bro OTF is written with Structures, Functions, Module init , Module exit, pointers , and variables. and whole kernel codes are made of these. give credits when you use it.
you could only change variables and replace lib/spica.c with lib/gueste.c and lib/spica.h with lib/gueste.h that's it nothing productive you can do

Why I named OTF as HP eXtended project you know because it will be easier for PPL like you with no knowledge to change variables of line 3 and to enhance OTF

Credit goes for 50 lines not line no.3

remove other 49 lines does OTF work? no

Let's have fun can you write only 4 lines of kernel modules which clears console? no you cant obviously admit it man, because it needs basic c knowledge that you dont have. If i will give you written codes then you'll as per your nature bash that it's no big thing only 4 lines codes

Whether it's 50 lines codes like OTF or 1 lines codes, you cant write means you've failed. that's it

By the way you bashed me by OTF by mentioning not my but someone others' work. Wanna know whose work?
http://tldp.org/LDP/lkmpg/2.6/html/lkmpg.html#AEN769 <--kernel module programming. it's nobody's work. It's tutorials that needs understanding of C. So if you want to use my sources than stop bashing me otherwise dont use it if you've any self-respect.
And stop spreading wrong information-unbiased information about my work.

S0ci0 · May 29, 2012

Wow this is usefull, thanks alot!

Stefan Gündhör · May 29, 2012

S0ci0 said:
Wow this is usefull, thanks alot!

You are welcome!

Info: I enhanced details about CFlags and toolchain a bit. Still continuing to enhance first posting and the linked postings for easiest use of the information by you all.

Flix123 · May 29, 2012

My first kernel

If you want maximum smoothness and responsiveness combined with all guestekrnL features, here comes my guestekrnL-FlixEdition Kernel

http://www.mediafire.com/?jlfq920eil4h1yl

Changelog:

- compiled with latest working toolchain (04-2012)
- activated cpu alignment
- other standard settings
- other name

- the rest is like in latest guestekrnL

Please test it and report about stability, performance and battery!

barril · May 29, 2012

Testing...

Enviado desde mi Optimus 2X
Rom HomeroMod Opit3D v1.4.2

Stefan Gündhör · May 29, 2012

Flix123 said:
If you want maximum smoothness and responsiveness combined with all guestekrnL features, here comes my guestekrnL-FlixEdition Kernel

http://www.mediafire.com/?jlfq920eil4h1yl

Changelog:

- compiled with latest working toolchain (04-2012)
- activated cpu alignment
- other standard settings
- other name
- the rest is like in latest guestekrnL

Please test it and report about stability, performance and battery!

Great, friend, I will have to set up a special user-editions posting collecting all user editions! Will link it in first post as soon as it is done.

And will test your edition myself of course with cojo's latest GhostRider ROM!

Flix123 · May 29, 2012

Stefan,

I'll appreciate your feedback. The next days, I'll work on better build flags.

barril · May 29, 2012

Flix123 said:
If you want maximum smoothness and responsiveness combined with all guestekrnL features, here comes my guestekrnL-FlixEdition Kernel

http://www.mediafire.com/?jlfq920eil4h1yl

Changelog:

- compiled with latest working toolchain (04-2012)
- activated cpu alignment
- other standard settings
- other name
- the rest is like in latest guestekrnL

Please test it and report about stability, performance and battery!

this is the capture of antut. so far all ok

Enviado desde mi Optimus 2X
Rom HomeroMod Opit3D v1.4.2

louiscypherbr · May 29, 2012

Flix123 said:
If you want maximum smoothness and responsiveness combined with all guestekrnL features, here comes my guestekrnL-FlixEdition Kernel

http://www.mediafire.com/?jlfq920eil4h1yl

Changelog:

- compiled with latest working toolchain (04-2012)
- activated cpu alignment
- other standard settings
- other name
- the rest is like in latest guestekrnL

Please test it and report about stability, performance and battery!

Hey, I love your and gueste's work, but can someone compile this kernel with force ac/usb patch?

Sent from my LG-P990 using XDA

Stefan Gündhör · May 29, 2012

louiscypherbr said:
Hey, I love your and gueste's work, but can someone compile this kernel with force ac/usb patch?

Sent from my LG-P990 using XDA

Hi what exactly is this patch? Edit: nevermind I got the link

Stefan Gündhör · May 29, 2012

Flix123 said:
Stefan,

I'll appreciate your feedback. The next days, I'll work on better build flags.

Well I just flashed DjangoManouche Beta 16 + your kernel and I am really impressed, my phone has never been so smooth!

I will keep your kernel on my phone for now, at least to test battery and stability and then I will report again

.
I use different 2nd core values though, I don't like such heavy use of second core :-(
Of course I will link your and further user releases as mentioned in the kernel thread and here in first posting, as soon as I have some leisure time!

Divyan · May 29, 2012

Stefan Gündhör said:
cojo's latest GhostRider ROM!

Boss, Stefan, post a link to this danger ROM too. Let me have some fun with all these unexpected gifts

( You guys are all crazy , you know that.. ? First your unpronouncable kernel name, and then a GhostRider , for gods sake..!!!! How you people come up with such names???

).

Stefan Gündhör · May 29, 2012

Divyan said:
Boss, Stefan, post a link to this danger ROM too. Let me have some fun with all these unexpected gifts

( You guys are all crazy , you know that.. ? First your unpronouncable kernel name, and then a GhostRider , for gods sake..!!!! How you people come up with such names??? ).

Here you go

http://dl.dropbox.com/u/67281342/Ghostrider_rom.zip
Source: http://www.handy-faq.de/forum/lg_op..._optimus_speed_p990_cojos_ghostrider_rom.html

All credits to cojo! -- see source link

[TOOL] guestekrnL doItYourself STOCK KERNEL BUILDER for dummies - MAKE UR OWN KERNEL!

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