From 10172f7485367182a5745a2114ed7e90830682f8 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 17 Nov 2006 04:50:37 +0000 Subject: [PATCH] Adapt FIFO code to deal with cases where the base GET/PUT value isn't 0. --- src/mesa/drivers/dri/nouveau/nouveau_context.h | 1 + src/mesa/drivers/dri/nouveau/nouveau_fifo.c | 16 ++++++++++------ src/mesa/drivers/dri/nouveau/nouveau_fifo.h | 12 +++++++----- 3 files changed, 18 insertions(+), 11 deletions(-) diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.h b/src/mesa/drivers/dri/nouveau/nouveau_context.h index 1da5b6d61d6..85d71cb04c4 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_context.h +++ b/src/mesa/drivers/dri/nouveau/nouveau_context.h @@ -43,6 +43,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. typedef struct nouveau_fifo_t{ u_int32_t* buffer; u_int32_t* mmio; + u_int32_t put_base; u_int32_t current; u_int32_t put; u_int32_t free; diff --git a/src/mesa/drivers/dri/nouveau/nouveau_fifo.c b/src/mesa/drivers/dri/nouveau/nouveau_fifo.c index 52c227cccca..8d2e88b1f34 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_fifo.c +++ b/src/mesa/drivers/dri/nouveau/nouveau_fifo.c @@ -46,19 +46,19 @@ void WAIT_RING(nouveauContextPtr nmesa,u_int32_t size) #endif u_int32_t fifo_get; while(nmesa->fifo.free < size+1) { - fifo_get = NV_FIFO_READ(NV03_FIFO_REGS_DMAGET); + fifo_get = NV_FIFO_READ_GET(); if(nmesa->fifo.put >= fifo_get) { nmesa->fifo.free = nmesa->fifo.max - nmesa->fifo.current; if(nmesa->fifo.free < size+1) { - OUT_RING(NV03_FIFO_CMD_REWIND); \ + OUT_RING(NV03_FIFO_CMD_JUMP | nmesa->fifo.put_base); if(fifo_get <= RING_SKIPS) { if(nmesa->fifo.put <= RING_SKIPS) /* corner case - will be idle */ - NV_FIFO_WRITE(NV03_FIFO_REGS_DMAPUT, RING_SKIPS + 1); - do { fifo_get = NV_FIFO_READ(NV03_FIFO_REGS_DMAGET); } + NV_FIFO_WRITE_PUT(RING_SKIPS + 1); + do { fifo_get = NV_FIFO_READ_GET(); } while(fifo_get <= RING_SKIPS); } - NV_FIFO_WRITE(NV03_FIFO_REGS_DMAPUT, RING_SKIPS); + NV_FIFO_WRITE_PUT(RING_SKIPS); nmesa->fifo.current = nmesa->fifo.put = RING_SKIPS; nmesa->fifo.free = fifo_get - (RING_SKIPS + 1); } @@ -134,7 +134,11 @@ GLboolean nouveauFifoInit(nouveauContextPtr nmesa) } /* Setup our initial FIFO tracking params */ - nmesa->fifo.free = fifo_init.cmdbuf_size >> 2; + nmesa->fifo.put_base = fifo_init.put_base; + nmesa->fifo.current = 0; + nmesa->fifo.put = 0; + nmesa->fifo.max = (fifo_init.cmdbuf_size >> 2) - 1; + nmesa->fifo.free = nmesa->fifo.max - nmesa->fifo.current; MESSAGE("Fifo init ok. Using context %d\n", fifo_init.channel); return GL_TRUE; diff --git a/src/mesa/drivers/dri/nouveau/nouveau_fifo.h b/src/mesa/drivers/dri/nouveau/nouveau_fifo.h index 0edb083388f..c1e9fd5dc53 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_fifo.h +++ b/src/mesa/drivers/dri/nouveau/nouveau_fifo.h @@ -38,6 +38,8 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. #define NV_FIFO_READ(reg) *(volatile u_int32_t *)(nmesa->fifo.mmio + (reg)) #define NV_FIFO_WRITE(reg,value) *(volatile u_int32_t *)(nmesa->fifo.mmio + (reg)) = value; +#define NV_FIFO_READ_GET() ((NV_FIFO_READ(NV03_FIFO_REGS_DMAGET) - nmesa->fifo.put_base) >> 2) +#define NV_FIFO_WRITE_PUT(val) NV_FIFO_WRITE(NV03_FIFO_REGS_DMAPUT, ((val)<<2) + nmesa->fifo.put_base) /* * Ring/fifo interface @@ -107,11 +109,11 @@ extern void WAIT_RING(nouveauContextPtr nmesa,u_int32_t size); #define RING_AHEAD() ((nmesa->fifo.put<=nmesa->fifo.current)?(nmesa->fifo.current-nmesa->fifo.put):nmesa->fifo.max-nmesa->fifo.put+nmesa->fifo.current) -#define FIRE_RING() do { \ - if (nmesa->fifo.current!=nmesa->fifo.put) {\ - nmesa->fifo.put=nmesa->fifo.current;\ - NV_FIFO_WRITE(NV03_FIFO_REGS_DMAPUT,nmesa->fifo.put);\ - }\ +#define FIRE_RING() do { \ + if (nmesa->fifo.current!=nmesa->fifo.put) { \ + nmesa->fifo.put=nmesa->fifo.current; \ + NV_FIFO_WRITE_PUT(nmesa->fifo.put); \ + } \ }while(0) extern void nouveauWaitForIdle(nouveauContextPtr nmesa); -- 2.30.2