3DRAM test

The 3DRAM test thoroughly tests the video memory in the Sun XVR-4000 graphics accelerator using 512-bit reads and writes. 3DRAM makes a full-screen pass, consisting of a write and a read to each pixel location, for each access mode on the list below. You can use either random data or specify data at the command line. Asecond pass is made with the one's complement of the data used in the first pass so that each memory location is tested with both a zero and a one.

Errors in this subtest are attributed to the 3DRAM. A failing chip is indicated by (X, Y) locations and device-specific "U" numbers in the following access modes:

• SFB Stencil 8

• SFB WID 16

• FB RGBAZ 64 - Buffer A

• SFB RGBAZ 64 - Buffer B

3DRAM Logic test

The 3DRAM Logic test provides logical functionality to the Sun XVR-4000 graphics accelerator. The following services are tested:

• Compare Controls--Match AB

• Compare Controls--Magnitude AB

• Compare Controls--Match C

• Compare Controls--Magnitude C

• Match Mask--AB

• Magnitude Mask--AB

• Match Mask--C

• Magnitude Mask--C

• Raster Operations--RGB

• Raster Operations--X

• Raster Operations--YZ

• Plane Mask--RGB

Each function is tested separately with a series of SFB64 writes. A total of 16 writes are made for each different test case with Y coordinate values varying from 0 to 30 in increments of 2 pixels. This dotted column organization provides page thrashing and block flashing in all screen resolutions. For each operation, all possible combinations are tested. For example, in ROP RGB new==old there are three possible values: new < old, new == old, and new > old. Each of these cases are tested. Errors in this subtest are attributed to the 3DRAM.

Cafe test

This test will do non-destructive testing of the Cafe memory (RDRAM) and Cafe.

Errors in this test are attributed to the Cafe and its memory.

Texture Memory test

Texture Memory test tests out all the of the Texture Memory by writing the data pattern selected (random, 0s, 1s, 5s, or 0xAs). By default, Random data is selected. The data is written using block writes and read back using block reads.

Errors in this test are attributed to the Texture Memory and the Texture Memory subsystem.

Rendering Pipeline test

Each primitive is tested thoroughly by exercising the following:

• Simple Triangles

• 2d primitives

• 3d Primitives (such as Triangles, 3d lines etc.)

• Vertex Processor

Errors in this test are attributed to the pipelines of the Sun XVR-4000 graphics accelerator and/or 3DRAM.

Texture Pipeline test

This test renders textured primitives to test:

• 2d texture Minification filtering

• 2d texture Magnification filtering

• 3d texture Minification filtering

• 3d texture Magnification filtering

• Texture environment

• Filter4 and sharpen filters

• Anisotropic filter

Errors in this test are attributed to the pipelines of the Sun XVR-4000 graphics accelerator and/or 3DRAM.

Fragment Processor test

Fragment Processor test, a subtest, exercises the fragment pipe of each pipeline of the XVR-4000's.

Auxiliary clipping (additive and subtractive):

• Depth cueing

• Alpha blend

• Viewport clip (2D and 3D)

• Area pattern (transparent and opaque)

Errors in this test are attributed to the FBC3 and/or 3DRAM.

Lighting test

The Lighting test exercises Cafe and lighting microcode. This test lights an object with maximum number of lights that XVR-4000 can handle in hardware. A checksum is generated for the rendered image and compared with the checksum generated for the same image on a known good system.Errors in this test are attributed to the Cafe, Microcode, FBC3 and RD RAMs.

Convolve test

Convolve test tests the Convolve chips functionality (convolution filters, Color look up tables and Gamma look up tables) along with the video read back functionality of convolves and master chip. This sub test renders an image which is made up of lines drawn radial. Then a block in the center of the image is super sampled and video read back is initiated. Once the video read back data is available to the zulutest, zulutest will generate checksum and compares with the checksum generated on known good system.Errors in this subtest can be attributed to FBC3, 3DRAM, Convolve, Master.

Stereo test

Currently, this sub test is not active. Stereo test displays an object in Stereo mode with different images for the right and left eye. You can verify proper operation by looking at the screen with stereo glasses and following the instructions displayed in the Parameter Options dialog box. This test temporarily switches the monitor into Stereo mode, renders a Stereo image and after displaying the image for five seconds, restores the monitor to its previous resolution.

Functional

Runs the full set of tests.

dev=device_name

device_name is the relative path name of the device being tested with respect to /dev/fbs; the default is zulu0.

S=subtest_number

subtest_number is the test number of the subtest to be run. Select from the subtests below. You can run multiple subtests by adding the subtest numbers together. For example, n=0x3 runs both test 1 and test 2; n=0x180 runs both test 0x080 and test 0x0100. You do not need the leading zeros.

• n--0x00001 Video Memory 3DRAM

• n--0x00002 3DRAM Logic

• n--0x00004 Cafe

• n--0x00008 Texture Memory SDRAM

• n--0x00010 Rendering Pipeline

• n--0x00020 Texturing Pipeline

• n--0x00040 Fragment Pipeline

• n--0x00080 Lighting

• n--0x00100 Convolve

• n--0x00200 Stereo

More than one subtest can be selected by ORing their subtest numbers. Example: n = 0x00011 indicates 3DRAM and Rendering Pipeline tests. A hex number must start with 0x, decimal numbers are also acceptable. [n = 0xff]

If looping on a test, the verbose mode is disabled.

F=n : Number of times to repeat each subtest [n = 1].

B=n : Number of times to repeat test loop before passing [n = 1].

P=pattern : test pattern - r for random, 0 for 0x00000000, 3 for 0x33333333, 5 for 0x55555555, or 9 for 0x9999999. [pattern=r]

F=#_of_subtest_loops

The number of times to repeat each subtest. The default is 1.

B=#_of_test_loops

The number of times to repeat a test loop before passing. The default is 1.

P=test_pattern

The test pattern number. The default is r, for random patterns. You may also choose 0 for 0x0000000, 3 for 0x3333333, 5 for 0x5555555, or 9 for 0x9999999.