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| author | Paulo Cesar Pereira de Andrade <pcpa@mandriva.com.br> | 2008-12-19 21:15:01 -0200 |
|---|---|---|
| committer | Paulo Cesar Pereira de Andrade <pcpa@mandriva.com.br> | 2008-12-19 21:15:01 -0200 |
| commit | 7f252345c0c6b260c5b37aff98a22679eb5c6c82 (patch) | |
| tree | 7267c7e5a1c35cb4791334554fe657a552724eb3 /src/smi_driver.c | |
| parent | 6a91bcc111902c45cc75c865893848b7c6c0a0b1 (diff) | |
Enable the SMI 501/502 command list interpreter in a "debug" build.
To enable it, set SMI501_CLI_DEBUG to 1 in smi.h, and use
Option "AcellMethod "EXA"
in the Device section of /etc/X11/xorg.conf
This code is enabled mainly for debug purposes. To make if have an
actual performance gain (like when using a sm50x with a "low profile"
"main" processor") it should be required to actually do busy loops
in kernel mode (and hope the costs of context switch will pay it).
In kernel mode it is possible to wait for an interrupt being triggered
when the command list is processed, or when the 2d engine is idle.
This commit should be functional, but, mainly due to debug messages,
should be significantly slower then a build with MI501_CLI_DEBUG
defined to 0.
Diffstat (limited to 'src/smi_driver.c')
| -rw-r--r-- | src/smi_driver.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/smi_driver.c b/src/smi_driver.c index 01198ae..79d8a0c 100644 --- a/src/smi_driver.c +++ b/src/smi_driver.c @@ -1522,6 +1522,21 @@ SMI_MapMem(ScrnInfoPtr pScrn) #else pSmi->FBReserved = pSmi->FBCursorOffset = pSmi->videoRAMBytes - (pSmi->Dualhead ? SMI501_CURSOR_SIZE << 1 : SMI501_CURSOR_SIZE); + +# ifdef SMI501_CLI_DEBUG + if (pSmi->useEXA) { + pSmi->batch_active = FALSE; + pSmi->batch_length = 4096; + pSmi->FBReserved -= pSmi->batch_length << 3; + pSmi->batch_offset = pSmi->FBReserved; + pSmi->batch_handle = (int64_t *)(pSmi->FBBase + pSmi->batch_offset); + pSmi->batch_finish = -1; + pSmi->batch_index = 0; + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "Using command list interpreter debug code\n"); + } +# endif + #endif } else { |