From 4988074794531939ec0cb0ad183633b59e9ccff4 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Sat, 14 Oct 2006 06:57:49 +1100 Subject: Fix some randomness in activating a second channel on NV40 (odd GET/PUT vals). Ch 1 GET now advances, but no ctx_switch. --- shared-core/nouveau_fifo.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/shared-core/nouveau_fifo.c b/shared-core/nouveau_fifo.c index 1761bbec..bd924f5f 100644 --- a/shared-core/nouveau_fifo.c +++ b/shared-core/nouveau_fifo.c @@ -259,6 +259,10 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init, #endif } + /* disable the pusher ? */ + NV_WRITE(NV_PFIFO_CACH1_DMAPSH, 0); + NV_WRITE(NV_PFIFO_CACH1_PSH0, 0); + /* enable the fifo dma operation */ NV_WRITE(NV_PFIFO_MODE,NV_READ(NV_PFIFO_MODE)|(1<channel)); @@ -274,6 +278,10 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init, NV_WRITE(NV03_FIFO_REGS_DMAPUT(init->channel), init->put_base); NV_WRITE(NV03_FIFO_REGS_DMAGET(init->channel), init->put_base); + /* reenable the pusher ? */ + NV_WRITE(NV_PFIFO_CACH1_PSH0, 1); + NV_WRITE(NV_PFIFO_CACH1_DMAPSH, 1); + /* reenable the fifo caches */ NV_WRITE(NV_PFIFO_CACHES, 0x00000001); -- cgit v1.2.3