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Author Topic: No 3d Acceleration For Ps3 Linux/homebrew  (Read 280 times)

silentbob343

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No 3d Acceleration For Ps3 Linux/homebrew
« on: November 12, 2006, 04:58:00 PM »

QUOTE(u221e @ Nov 12 2006, 07:38 PM) View Post

I've been reading the just released Linux docs on power developer and found something I haven't heard talked about yet. Sony will not be allowing Linux or homebrew software access the RSX GPU.

Under the "Graphics/Video" section of "Linux Kernel Overview" I found this:

"PS3 has a powerful graphic processing unit with high speed host connection. The GPU is connected to both HDMI and AV multi interface. Although the GPU is connected directly to CBE, no direct access by guest OSes to the GPU is allowed currently. Video mode/format setting is also the role of AV setting driver. PS3 Linux fb driver calls AV setting driver to setup video modes.

Currently X server uses virtual frame buffer to render its image. No hardware acceleration is supported under Linux. See the description above section."


To the people wondering how Sony would be able to allow Linux and homebrew without opening the door to piracy, now you know.

Thanks for the info, I wonder how this will affect perfomance under linux?
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u221e

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #1 on: November 12, 2006, 05:05:00 PM »

QUOTE(silentbob343 @ Nov 12 2006, 06:05 PM) View Post

Thanks for the info, I wonder how this will affect perfomance under linux?


General Linux performance wouldn't be affected by not having any hardware acceleration. However if you want 3d homebrew games then the developer would have to go old school with software rendering.
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throwingks

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #2 on: November 12, 2006, 05:23:00 PM »

I am glad they did this. Now there is a reason to start hacking.
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calderra

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #3 on: November 12, 2006, 07:27:00 PM »

QUOTE(throwingks @ Nov 13 2006, 01:30 AM) View Post

I am glad they did this. Now there is a reason to start hacking.


When people get arbitrary OSs going on a system within a week of release, I don't think you have to worry about the need for people to "start" hacking.
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bigjimmy

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #4 on: November 12, 2006, 09:51:00 PM »

QUOTE
I am glad they did this. Now there is a reason to start hacking.



Bout time too. I have been waiting for sony to announce a 'catch' in being able to run linux on the PS3. Someone will find a way to hack this though.
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incognegro

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #5 on: November 13, 2006, 03:49:00 AM »

So does this mean that only 256 mb of ram will be available for linux since the ram is divided for the gpu and cpu respectively?
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incognegro

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #6 on: November 13, 2006, 09:00:00 AM »

QUOTE(silentbob343 @ Nov 13 2006, 12:44 PM) View Post

Interesting question, but could the OS use video memory as system memory even without the lock out?


I was wondering that too....
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incognegro

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #7 on: November 13, 2006, 01:33:00 PM »

QUOTE(thax @ Nov 13 2006, 06:24 PM) View Post

Even if the CPU was allowed to access the 256MB of GPU RAM; the bandwidth allocated to write operations makes this memory pretty much useless in this configuration.


Im sure some good programing can get around this
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xymor

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #8 on: December 02, 2006, 10:07:00 AM »

Quake 3 running on Ps3

Quake 3 using software rendering.
Nothing like RSX hardware rendering, but a beginning nonetheless.
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luther349

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No 3d Acceleration For Ps3 Linux/homebrew
« Reply #9 on: December 05, 2006, 03:19:00 AM »

we shall give you crippled linux for no real reasion. and someone said no 3d acell whont effect genrel linux use lol you cant be more wrong. x uses direct rendering modes to display stuff faster and render them quicker using 2d/3d acell. in fact so does windows. running without is the same as softwhere renderd mode the desktop looks like shit and is slow. i thought it was cool ps3 can run linux lucky i checked and didnt buy the hype couse it only runs linux badly. i bet my 2 year old pc can run circles around a ps3 in linux mode.
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