[Intel-gfx] glxdemo/glxpixmap doesn't work, please help

[Liu, Ying2]

We are running mesademo on Ivybridge platform. Glxdemo/glxpixmap doesn't work.

If somebody could help us out, that would be great.



The followings are the command dump from ring buffer when glxdemo and glxpixmap are runing:

           Address       GPU commands     Meaning

      0x0         7a000003          PIPE_COTROL

      0x4         0x100002          DWORD 1

      0x8         0x21084           DWORD 2

      0xc         0x0               DWORD 3

      0x10        0x0               DWORD 4

      0x14        0x0               DWORD 5

      0x18        0x7a000003        PIPE_COTROL

      0x1c        0x4000            DWORD 1

      0x20        0x21084           DWORD 2

      0x24        0x0               DWORD 3

      0x28        0x0               DWORD 4

      0x2c        0x0               DWORD 5

      0x30        0x7a000003        PIPE_CONTROL

      0x34        0x1c1d            DWORD 1

      0x38        0x21084           DWORD 2

      0x3c        0x0               DWORD 3

      0x40        0x0               DWORD 4

      0x44        0x0               DWORD 5

      0x48        0x18800080        MI_BATCH_BUFFER_START

      0x4c        0x768000          BATCH_BUFFER_OFFSET

      0x50        0x7a000003        PIPE_CONTROL

      0x54        0x100002          DWORD 1

      0x58        0x21084           DWORD 2

      0x5c        0x0               DWORD 3

      0x60        0x0               DWORD 4

      0x64        0x0               DWORD 5

      0x68        0x7a000003        PIPE_CONTROL

      0x6c        0x4000            DWORD 1

      0x70        0x21084           DWORD 2

      0x74        0x0               DWORD 3

      0x78        0x0               DWORD 4

      0x7c        0x0               DWORD 5



The batch buffer contains 3D render commands and data from glxdemo (or glxpixmap).  The GPU hangs at address 0x64.  That means all commands in batch buffer are completed but GPU is waiting for some flushes to finish in the pipe_control command.  Could you help me figure out is there any thing wrong in this command sequence from the ring buffer?



Thank you so much



Ying

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