Date: Thu, 29 Jan 2004 19:51:34 +0000 (GMT)
From: James Simmons <jsimmons@infradead.org>
To: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
cc: linux-kernel <linux-kernel@vger.kernel.org>, <hmallat@cc.hut.fi>,
       <geert@linux-m68k.org>
Subject: Re: tdfxfb in linux-2.6 and 1GiB RAM
In-Reply-To: <20040128161318.5b20d741.vmlinuz386@yahoo.com.ar>
Message-ID: <Pine.LNX.4.44.0401282255590.31165-100000@phoenix.infradead.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
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> I can't use frame buffer (tdfxfb) in linux-2.6 with 1GiB of RAM, but yes with 512MiB.
> (The linux-2.4 works ok, in both cases.)
> 
> HIGHMEM disabled.

Working on a fix. Basically we need to migrate as many drivers as possible 
to use acceleration and remove the ioremapping code. To do this tho I have 
to replace the fb_read and fb_write functions with someothing that uses 
the accel engines. I haven't finished that code yet.

> The another problem is, when boot in low resolution default 640x480 and switch with
> fbset to 1024x768 for example, it changes ok, but can't draw in all screen, only in a
> small area of 640x480 located at upper left of screen, the same for all VTs.

Fixed in the fbdev tree. That will be synced up soon.


> If you need more info in logs/proc/sysfs please let me know.
> 
> the @dmesg (1GiB) appears:
> fb: Can't remap 3Dfx Voodoo5 register area.
> tdfxfb: probe of 0000:01:00.0 failed with error -6
> 
> and @dmesg (512MiB):
> fb: 3Dfx Voodoo5 memory = 32768K
> 
> lspci -vv output:
> 01:00.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 4 / Voodoo 5 (rev 01) (prog-if 00 [VGA])
>         Subsystem: 3Dfx Interactive, Inc.: Unknown device 0004
>         Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+
>         Interrupt: pin A routed to IRQ 11
>         Region 0: Memory at d0000000 (32-bit, non-prefetchable) [size=128M]
>         Region 1: Memory at e0000000 (32-bit, prefetchable) [size=128M]
>         Region 2: I/O ports at c000 [size=256]
>         Expansion ROM at <unassigned> [disabled] [size=64K]
>         Capabilities: [54] AGP version 2.0
>                 Status: RQ=16 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit+ FW- AGP3- Rate=x1,x2
>                 Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
>         Capabilities: [60] Power Management version 2
>                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 
> 
> /proc/iomem (1GiB)
> 00000000-0009ffff : System RAM
> 000a0000-000bffff : Video RAM area
> 000c0000-000c7fff : Video ROM
> 000f0000-000fffff : System ROM
> 00100000-1ffeffff : System RAM
>   00100000-00366df4 : Kernel code
>   00366df5-0043613f : Kernel data
> 1fff0000-1fff2fff : ACPI Non-volatile Storage
> 1fff3000-1fffffff : ACPI Tables
> d0000000-dfffffff : PCI Bus #01
>   d0000000-d7ffffff : 0000:01:00.0
> e0000000-e7ffffff : PCI Bus #01
>   e0000000-e7ffffff : 0000:01:00.0
> e8000000-ebffffff : 0000:00:00.0
> ec000000-ec0000ff : 0000:00:09.0
>   ec000000-ec0000ff : 8139too
> ec001000-ec0010ff : 0000:00:10.3
> fec00000-fec00fff : reserved
> fee00000-fee00fff : reserved
> ffff0000-ffffffff : reserved
> 
> /proc/iomem (512MiB)
> 00000000-0009ffff : System RAM
> 000a0000-000bffff : Video RAM area
> 000c0000-000c7fff : Video ROM
> 000f0000-000fffff : System ROM
> 00100000-1ffeffff : System RAM
>   00100000-003504e0 : Kernel code
>   003504e1-0041c13f : Kernel data
> 1fff0000-1fff2fff : ACPI Non-volatile Storage
> 1fff3000-1fffffff : ACPI Tables
> d0000000-dfffffff : PCI Bus #01
>   d0000000-d7ffffff : 0000:01:00.0
>     d0000000-d7ffffff : tdfx regbase
> e0000000-e7ffffff : PCI Bus #01
>   e0000000-e7ffffff : 0000:01:00.0
>     e0000000-e7ffffff : tdfx smem
> e8000000-ebffffff : 0000:00:00.0
> ec000000-ec0000ff : 0000:00:09.0
>   ec000000-ec0000ff : 8139too
> ec001000-ec0010ff : 0000:00:10.3
> fec00000-fec00fff : reserved
> fee00000-fee00fff : reserved
> ffff0000-ffffffff : reserved
> 
> 
> chau,
>  djgera
> 
> 
> 


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