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Improve GPU memory controller idle check

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* style fix
* add better tracing for non-idle memory controller conditions
This commit is contained in:
Alexander von Gluck IV
2011-11-20 16:58:47 -06:00
parent 021332df5d
commit 3383e56426
1 changed files with 18 additions and 3 deletions
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src/add-ons/accelerants/radeon_hd/gpu.cpp
+18 -3
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@@ -217,11 +217,26 @@ uint32
radeon_gpu_mc_idlecheck() radeon_gpu_mc_idlecheck()
{ {
uint32 idleStatus; uint32 idleStatus;
if (!((idleStatus = Read32(MC, SRBM_STATUS)) &
(VMC_BUSY | MCB_BUSY | uint32 busyBits
MCDZ_BUSY | MCDY_BUSY | MCDX_BUSY | MCDW_BUSY))) = (VMC_BUSY | MCB_BUSY | MCDZ_BUSY | MCDY_BUSY | MCDX_BUSY | MCDW_BUSY);
if (!((idleStatus = Read32(MC, SRBM_STATUS)) & busyBits))
return 0; return 0;
bool state;
state = (idleStatus & VMC_BUSY) != 0;
TRACE("%s: VMC is %s\n", __func__, state ? "busy" : "idle");
state = (idleStatus & MCB_BUSY) != 0;
TRACE("%s: MCB is %s\n", __func__, state ? "busy" : "idle");
state = (idleStatus & MCDZ_BUSY) != 0;
TRACE("%s: MCDZ is %s\n", __func__, state ? "busy" : "idle");
state = (idleStatus & MCDY_BUSY) != 0;
TRACE("%s: MCDY is %s\n", __func__, state ? "busy" : "idle");
state = (idleStatus & MCDX_BUSY) != 0;
TRACE("%s: MCDX is %s\n", __func__, state ? "busy" : "idle");
state = (idleStatus & MCDW_BUSY) != 0;
TRACE("%s: MCDW is %s\n", __func__, state ? "busy" : "idle");
return idleStatus; return idleStatus;
} }