Vga Compatible Controller Cirrus Logic Gd 5446 And Opengl ~REPACK~
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May 20, 2016 leoj@ubuntu:$ sudo lshw -c video.-display:0 description: VGA compatible controller product: GD 5446 vendor: Cirrus Logic physical id: 2 bus info: pci@0000:00:02.0 version: 00 width: 32 bits clock: 33MHz capabilities: vgacontroller rom configuration: driver=cirrus latency=0 resources: irq:0 memory:f8000000-f9ffffff memory:fe4d0000-fe4d0fff memory:fe4c0000-fe4cffff.-display:1 UNCLAIMED. I'm guessing this is a problem with OpenGL support on your system. Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01) 00:02.0 VGA compatible controller: Cirrus Logic GD 5446 00:03.0 VGA compatible controller: NVIDIA Corporation GK104GL GRID K520 (rev a1) 00:1f.0 Unassigned class ff80: XenSource, Inc. Xen Platform Device (rev 01.
the display options in RHEL:[root@rhel-gpu-1 ~]# lshw -c display*-display:0description: VGA compatible controllerproduct: GD 5446vendor: Cirrus Logicphysical id: 2bus info: pci@0000:00:02.0version: 00width: 32 bitsclock: 33MHzcapabilities: vga_controller romconfiguration: driver=cirrus latency=0resources: irq:0 memory:f0000000-f1ffffff memory:fe050000-fe050fff memory:fe040000-fe04ffff*-display:1description: 3D controllerproduct: GP104GL [Tesla P4]vendor: NVIDIA Corporationphysical id: 5bus info: pci@0000:00:05.0version: a1width: 64 bitsclock: 33MHzcapabilities: pm msi pciexpress bus_master cap_listconfiguration: driver=nvidia latency=0resources: irq:11 memory:fd000000-fdffffff memory:e0000000-efffffff memory:f2000000-f3ffffff
lshw -C displayWARNING: you should run this program as super-user.*-display:0 UNCLAIMEDdescription: VGA compatible controllerproduct: GD 5446vendor: Cirrus Logicphysical id: 2bus info: pci@0000:00:02.0version: 00width: 32 bitsclock: 33MHzcapabilities: vga_controller bus_masterconfiguration: latency=0resources: memory:d0000000-d1ffffff memory:d7100000-d7100fff*-display:1 UNCLAIMEDdescription: 3D controllerproduct: GF100GL [Tesla T20 Processor]vendor: NVIDIA Corporationphysical id: 3bus info: pci@0000:00:03.0version: a3width: 64 bitsclock: 33MHzcapabilities: bus_master cap_listconfiguration: latency=0resources: memory:d2000000-d3ffffff memory:c0000000-c3ffffff memory:c4000000-c7ffffff ioport:c100(size=128) memory:d7000000-d707ffff*-display:2 UNCLAIMEDdescription: 3D controllerproduct: GF100GL [Tesla T20 Processor]vendor: NVIDIA Corporationphysical id: 4bus info: pci@0000:00:04.0version: a3width: 64 bitsclock: 33MHzcapabilities: bus_master cap_listconfiguration: latency=0resources: memory:d4000000-d5ffffff memory:c8000000-cbffffff memory:cc000000-cfffffff ioport:c180(size=128) memory:d7080000-d70fffff
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01)00:02.0 VGA compatible controller: Cirrus Logic GD 544600:03.0 VGA compatible controller: NVIDIA Corporation GK104GL [GRID K520] (rev a1)00:1f.0 Unassigned class [ff80]: XenSource, Inc. Xen Platform Device (rev 01)
Cirrus Logic was built upon a small company founded by a former MIT professor Patil. At the university Patil had developed a microchip-level software system for controlling computer hard disk drives that he called Strategic/Logic Array. These systems improved hard drive function management and Patil Systems was established to market the new product. After three years of struggle Patil contacted Hackworth, back then in Signetics. And it was Hackworth who seen the possibilities of S/LA system to accelerate design of a wide range of highly specialized semiconductors. All the development process required was a systems engineer who could program and arrange the chips to handle whatever function the product should perform. Hackworth joined Patil Systems as CEO of new company named after cirruses, the highest clouds in the sky, as a way of expressing the elevated complexity of its products.S/LA system allowed Cirrus Logic to exploit new markets as they emerged. Without own fabrication open foundries were used. Cirrus took advantage of PC boom and finally succeeded with own hard drive controller, first to be mounted inside the drive mechanism. Then came time for more products- graphics included. IBM unveiled it's VGA standard in 1987 and chip makers were in new race that Cirrus won, producing the first fully compatible VGA controller microchip. Cirrus Logic went public in 1989 and accelerated growth through acquisitions among which were Pixel Semiconductor and Acumos. By 1993 Cirrus became major player in many areas of incoming digital future. Lack of own fabrication seemed to stand in a way of further expansion. Flexible yet fabless way was to at least buy long term foundry capacity.In 1994 Cirrus Logic took a first tentative step toward own fabrication capacity by investing into a joint venture with IBM named MiCRUS. A year later came second joint fabrication venture with Lucent named Cirent. A new product line should have helped fill those capacities- 3d accelerators. Cirrus got a jump start into 3D technology by acquiring patents and several engineers of Austek, company which has just developed A1060 OpenGL accelerator. Cirrus also cooperated with Argonaut on an API for their 3D products. Everything seemed to be in place for the first 3D accelerator, and Cirrus promised shipping by the end of 1994. That was chipset Mondello, a GD5470 3D part with separate 2D and ramdac chips. It should have been VL-Bus card with 96 bit VRAM interface. I don't know why exactly Mondello wasn't finished, but price would probably be quite high and therefore aimed at the professional market.The execution was poor on some other products as well and Cirrus Logic had to go through consolidation after rapid expansion. In April 1996 Cirrus has licensed the 3D portion of 3DO's M2 technology, a 64-bit graphics acceleration built for new console. But Panasonic in the end decided not to deliver second 3DO to the market. The goal of Cirrus was to create a high-end card by integrating 3DO's technology into own architecture. M2, on paper at least, was no joke with half million polygons triangle setup and 100 million pixels per second fillrate. Cirrus set on to adapt M2 technology for PC platform and Direct3D API. Since the beginning of 1995 Cirrus had a license for RAMBUS, which was back then offering 10 times higher performance than DRAM and for some time also lower prices. In the summer CL-GD5462 was first video accelerator to take advantage of 500 MHz RDRAM. Named Laguna, it started a product family utilizing Rambus memory. By the end of 1996 Laguna3D was ready for mass production. But were the specifications like the M2?Laguna3DFirst available 3d chip from Cirrus was numbered CL-GD5464.During 1997 updated the chip into CL-GD5465. Between these chips there were more changes internally than Cirrus would admit. And even the 5465 itself had more than one revision.
Beside obvious bus change, the AGP cards, or at least the memory, can be clocked faster. The only other obvious improvement is fixed bilinear filter, which I will get to later. The lack of major differences between 5464 and 5465 puts execution of Cirrus into question. Could they just stay idle while waiting for Intel 440LX AGP chipset release in August 1997? Intel and Microsoft were very fond of Cirrus and together put on a show in March Meltdown '97 starring Laguna3D-AGP as the industry's first hardware utilizing Intel's Accelerated Graphics Port to texture from system memory. No other 3d graphics provider got such an endorsement from mighty Wintel. In March Laguna3D PCI finally arrived to market in the form of Creative's Graphics Blaster. Creative once again bought rights for early release, and more interestingly, they announced their Laguna3D will be compatible with CGL. This would make it compatible with 3D Blaster library, however tests showed otherwise (thanks Gona).Initial promotion price of hundred bucks should be a sign that Laguna3D is not so hot performer. All cores were manufactured in 350 um MiCRUS fab. Members of Laguna family are utilizing single channel RDRAM with bandwidth up to 600 MB per second. Up to 4 way interleaving is possible. Laguna3D has pins for second channel already reserved, to maintain the same board layout with future planned products using two channels to double the memory bandwidth. Boards from that time have already place for RDRAM on the second channel, ready for the pin compatible Laguna3D follower. Both 2 and 4 MB variants are common. Up to 8 MB of local memory are supported and Techworks planned to release 6 and 8 MB cards, but I don't think that ever happened. Last chip revision C was for motherboard integration. My slower AGP cards are overclockable by some 25-30%, chip is still quite cool and performance scales linearly.TechnologyLaguna3D takes the proven 5462 2D core, integrates faster 230MHz DAC with 8-bit palette LUT, and of course adds 3d module. That is standard rasterizer of the time, sitting between FIFOs and feeds from own 16 kB of registers. It takes care of common rendering functions such as Gouraud shading, perspective correction (ahem), Z-buffering, texture map filtering (well ...), fogging (uh). Texturing unit works in paraller with polygon engine, available formats include 8880 RGBA up to 512x512 pixels big. Cirrus was especially fond of it's texturing engine, calling it TextureJet architecture. It is a hardware texture manager and sophisticated PCI/AGP bus mastering scheme relieving CPU from texture transfers between system and local video memory. Our processors would appreciate more something like triangle setup, but at least there is something unique inside Laguna3D. The texture manager is supported with 1 kilobyte texture cache and on-chip address translation table that tracks, via dynamic random accessing, all the memory locations of textures being used. These features helped Cirrus to become the promoter of Intel's AGP model, although 5465 uses only basic 66 MHz bus speed. It survives on the fly switch to 133 MHz, but 3d games then quickly freezed PC. Pixels are tested by masks and depth comparison performed with help by cache, before lighting and blending is processed. All basic blending modes are supported except one- multiplicative blending. That was one big nail into Laguna3D's coffin, because with advancing time game developers were using it more and more. Overall Laguna3D claimed performance of more than 50 million "perspective-corrected" textured pixels per second. 32 bit output is supported even for 3d rendering and Laguna is internally at least partially operating in true color. Rambus memory controller with one byte width should support up to 667 MHz data rate, but boards I've seen are only 600 MHz or even a bit less. Clock of Rambus controller is half of data rate, which means own domain ticking at frequency of 229-315 MHz. I could not find a way how to read chip clock, but 1/4 of memory clock appears to be safe assumption. 2b1af7f3a8