Francisco Jerez
2009-Dec-14 03:06 UTC
[Nouveau] [PATCH] drm/nouveau: Add cache_flush/pull fifo engine functions.
Signed-off-by: Francisco Jerez <currojerez at riseup.net>
---
drivers/gpu/drm/nouveau/nouveau_drv.h | 4 +++
drivers/gpu/drm/nouveau/nouveau_state.c | 10 +++++++++
drivers/gpu/drm/nouveau/nv04_fifo.c | 34 +++++++++++++++++++++++++++++++
3 files changed, 48 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h
b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 6e12a3d..de239d9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -305,6 +305,8 @@ struct nouveau_fifo_engine {
void (*disable)(struct drm_device *);
void (*enable)(struct drm_device *);
bool (*reassign)(struct drm_device *, bool enable);
+ bool (*cache_flush)(struct drm_device *dev);
+ bool (*cache_pull)(struct drm_device *dev, bool enable);
int (*channel_id)(struct drm_device *);
@@ -920,6 +922,8 @@ extern int nv04_fifo_init(struct drm_device *);
extern void nv04_fifo_disable(struct drm_device *);
extern void nv04_fifo_enable(struct drm_device *);
extern bool nv04_fifo_reassign(struct drm_device *, bool);
+extern bool nv04_fifo_cache_flush(struct drm_device *);
+extern bool nv04_fifo_cache_pull(struct drm_device *, bool);
extern int nv04_fifo_channel_id(struct drm_device *);
extern int nv04_fifo_create_context(struct nouveau_channel *);
extern void nv04_fifo_destroy_context(struct nouveau_channel *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c
b/drivers/gpu/drm/nouveau/nouveau_state.c
index 4342867..c2daf8c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -76,6 +76,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->fifo.disable = nv04_fifo_disable;
engine->fifo.enable = nv04_fifo_enable;
engine->fifo.reassign = nv04_fifo_reassign;
+ engine->fifo.cache_flush = nv04_fifo_cache_flush;
+ engine->fifo.cache_pull = nv04_fifo_cache_pull;
engine->fifo.channel_id = nv04_fifo_channel_id;
engine->fifo.create_context = nv04_fifo_create_context;
engine->fifo.destroy_context = nv04_fifo_destroy_context;
@@ -117,6 +119,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->fifo.disable = nv04_fifo_disable;
engine->fifo.enable = nv04_fifo_enable;
engine->fifo.reassign = nv04_fifo_reassign;
+ engine->fifo.cache_flush = nv04_fifo_cache_flush;
+ engine->fifo.cache_pull = nv04_fifo_cache_pull;
engine->fifo.channel_id = nv10_fifo_channel_id;
engine->fifo.create_context = nv10_fifo_create_context;
engine->fifo.destroy_context = nv10_fifo_destroy_context;
@@ -158,6 +162,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->fifo.disable = nv04_fifo_disable;
engine->fifo.enable = nv04_fifo_enable;
engine->fifo.reassign = nv04_fifo_reassign;
+ engine->fifo.cache_flush = nv04_fifo_cache_flush;
+ engine->fifo.cache_pull = nv04_fifo_cache_pull;
engine->fifo.channel_id = nv10_fifo_channel_id;
engine->fifo.create_context = nv10_fifo_create_context;
engine->fifo.destroy_context = nv10_fifo_destroy_context;
@@ -199,6 +205,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->fifo.disable = nv04_fifo_disable;
engine->fifo.enable = nv04_fifo_enable;
engine->fifo.reassign = nv04_fifo_reassign;
+ engine->fifo.cache_flush = nv04_fifo_cache_flush;
+ engine->fifo.cache_pull = nv04_fifo_cache_pull;
engine->fifo.channel_id = nv10_fifo_channel_id;
engine->fifo.create_context = nv10_fifo_create_context;
engine->fifo.destroy_context = nv10_fifo_destroy_context;
@@ -241,6 +249,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->fifo.disable = nv04_fifo_disable;
engine->fifo.enable = nv04_fifo_enable;
engine->fifo.reassign = nv04_fifo_reassign;
+ engine->fifo.cache_flush = nv04_fifo_cache_flush;
+ engine->fifo.cache_pull = nv04_fifo_cache_pull;
engine->fifo.channel_id = nv10_fifo_channel_id;
engine->fifo.create_context = nv40_fifo_create_context;
engine->fifo.destroy_context = nv40_fifo_destroy_context;
diff --git a/drivers/gpu/drm/nouveau/nv04_fifo.c
b/drivers/gpu/drm/nouveau/nv04_fifo.c
index 0c3cd53..f31347b 100644
--- a/drivers/gpu/drm/nouveau/nv04_fifo.c
+++ b/drivers/gpu/drm/nouveau/nv04_fifo.c
@@ -71,6 +71,40 @@ nv04_fifo_reassign(struct drm_device *dev, bool enable)
return (reassign == 1);
}
+bool
+nv04_fifo_cache_flush(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
+ uint64_t start = ptimer->read(dev);
+
+ do {
+ if (nv_rd32(dev, NV03_PFIFO_CACHE1_GET) =+ nv_rd32(dev,
NV03_PFIFO_CACHE1_PUT))
+ return true;
+
+ } while (ptimer->read(dev) - start < 100000000);
+
+ NV_ERROR(dev, "Timeout flushing the PFIFO cache.\n");
+
+ return false;
+}
+
+bool
+nv04_fifo_cache_pull(struct drm_device *dev, bool enable)
+{
+ uint32_t pull = nv_rd32(dev, NV04_PFIFO_CACHE1_PULL0);
+
+ if (enable) {
+ nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, pull | 1);
+ } else {
+ nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, pull & ~1);
+ nv_wr32(dev, NV04_PFIFO_CACHE1_HASH, 0);
+ }
+
+ return !!(pull & 1);
+}
+
int
nv04_fifo_channel_id(struct drm_device *dev)
{
--
1.6.4.4