From 65e3d5e45e3d14f4ff98a15af0662e6c6e589cd2 Mon Sep 17 00:00:00 2001 From: Stephane Marchesin Date: Sun, 14 Jan 2007 21:17:08 +0100 Subject: [PATCH] nouveau: Make the state cache hierarchical. --- src/mesa/drivers/dri/nouveau/nouveau_fifo.h | 3 +++ src/mesa/drivers/dri/nouveau/nouveau_state_cache.c | 5 +++++ src/mesa/drivers/dri/nouveau/nouveau_state_cache.h | 8 +++++++- 3 files changed, 15 insertions(+), 1 deletion(-) diff --git a/src/mesa/drivers/dri/nouveau/nouveau_fifo.h b/src/mesa/drivers/dri/nouveau/nouveau_fifo.h index 05d00d4..9056bfb 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_fifo.h +++ b/src/mesa/drivers/dri/nouveau/nouveau_fifo.h @@ -31,6 +31,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. #include "nouveau_context.h" #include "nouveau_ctrlreg.h" +#include "nouveau_state_cache.h" //#define NOUVEAU_RING_DEBUG //#define NOUVEAU_STATE_CACHE_DISABLE @@ -114,6 +115,7 @@ extern void nouveau_state_cache_init(nouveauContextPtr nmesa); #define OUT_RING_CACHE(n) do { \ if (nmesa->state_cache.atoms[nmesa->state_cache.current_pos].value!=(n)) { \ nmesa->state_cache.atoms[nmesa->state_cache.current_pos].dirty=1; \ + nmesa->state_cache.hdirty[nmesa->state_cache.current_pos/NOUVEAU_STATE_CACHE_HIER_SIZE]=1; \ nmesa->state_cache.atoms[nmesa->state_cache.current_pos].value=(n); \ } \ nmesa->state_cache.current_pos++; \ @@ -122,6 +124,7 @@ extern void nouveau_state_cache_init(nouveauContextPtr nmesa); #define OUT_RING_CACHEf(n) do { \ if ((*(float*)(&nmesa->state_cache.atoms[nmesa->state_cache.current_pos].value))!=(n)){ \ nmesa->state_cache.atoms[nmesa->state_cache.current_pos].dirty=1; \ + nmesa->state_cache.hdirty[nmesa->state_cache.current_pos/NOUVEAU_STATE_CACHE_HIER_SIZE]=1; \ (*(float*)(&nmesa->state_cache.atoms[nmesa->state_cache.current_pos].value))=(n);\ } \ nmesa->state_cache.current_pos++; \ diff --git a/src/mesa/drivers/dri/nouveau/nouveau_state_cache.c b/src/mesa/drivers/dri/nouveau/nouveau_state_cache.c index 36f0c10..cb4b9d3 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_state_cache.c +++ b/src/mesa/drivers/dri/nouveau/nouveau_state_cache.c @@ -25,6 +25,8 @@ void nouveau_state_cache_flush(nouveauContextPtr nmesa) do { // jump to a dirty state + while((nmesa->state_cache.hdirty[i/NOUVEAU_STATE_CACHE_HIER_SIZE]==0)&&(istate_cache.atoms[i].dirty==0)&&(istate_cache.atoms[i+j].value); nmesa->state_cache.atoms[i+j].dirty=0; + if ((i+j)%NOUVEAU_STATE_CACHE_HIER_SIZE==0) + nmesa->state_cache.hdirty[(i+j)/NOUVEAU_STATE_CACHE_HIER_SIZE-1]=0; } i+=run; } } while(istate_cache.hdirty[NOUVEAU_STATE_CACHE_HIER_SIZE/NOUVEAU_STATE_CACHE_HIER_SIZE-1]=0; } diff --git a/src/mesa/drivers/dri/nouveau/nouveau_state_cache.h b/src/mesa/drivers/dri/nouveau/nouveau_state_cache.h index 2488274..5f9d426 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_state_cache.h +++ b/src/mesa/drivers/dri/nouveau/nouveau_state_cache.h @@ -5,6 +5,10 @@ #include "mtypes.h" #define NOUVEAU_STATE_CACHE_ENTRIES 2048 +// size of a dirty requests block +// you can play with that and tune the value to increase/decrease performance +// but keep it a power of 2 ! +#define NOUVEAU_STATE_CACHE_HIER_SIZE 32 typedef struct nouveau_state_atom_t{ uint32_t value; @@ -14,8 +18,10 @@ typedef struct nouveau_state_atom_t{ typedef struct nouveau_state_cache_t{ nouveau_state_atom atoms[NOUVEAU_STATE_CACHE_ENTRIES]; uint32_t current_pos; + // hierarchical dirty flags + uint8_t hdirty[NOUVEAU_STATE_CACHE_ENTRIES/NOUVEAU_STATE_CACHE_HIER_SIZE]; // master dirty flag - uint32_t dirty; + uint8_t dirty; }nouveau_state_cache; -- 2.7.4