geemili
/
drm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

nouveau: Add read() method to Engine.timer. 

This is not called from anywhere, yet.
main
Pekka Paalanen 2007-07-06 19:34:15 +03:00
parent 0c77f5abea
commit 696bee093f
3 changed files with 31 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
shared-core/nouveau_drv.h
View File

@ -157,6 +157,7 @@ struct nouveau_engine_func {
struct {
int (*init)(struct drm_device *dev);
uint64_t (*read)(struct drm_device *dev);
void (*takedown)(struct drm_device *dev);
} timer;
@ -469,6 +470,7 @@ extern void nv50_mc_takedown(struct drm_device *dev);
/* nv04_timer.c */
extern int nv04_timer_init(struct drm_device *dev);
extern uint64_t nv04_timer_read(struct drm_device *dev);
extern void nv04_timer_takedown(struct drm_device *dev);
extern long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,

8
shared-core/nouveau_state.c
View File

@ -88,6 +88,8 @@ static int nouveau_init_card_mappings(struct drm_device *dev)
static int nouveau_stub_init(struct drm_device *dev) { return 0; }
static void nouveau_stub_takedown(struct drm_device *dev) {}
static uint64_t nouveau_stub_timer_read(struct drm_device *dev) { return 0; }
static int nouveau_init_engine_ptrs(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
@ -104,6 +106,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->mc.init = nv04_mc_init;
engine->mc.takedown = nv04_mc_takedown;
engine->timer.init = nv04_timer_init;
engine->timer.read = nv04_timer_read;
engine->timer.takedown = nv04_timer_takedown;
engine->fb.init = nv04_fb_init;
engine->fb.takedown = nv04_fb_takedown;
@ -130,6 +133,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->mc.init = nv04_mc_init;
engine->mc.takedown = nv04_mc_takedown;
engine->timer.init = nv04_timer_init;
engine->timer.read = nv04_timer_read;
engine->timer.takedown = nv04_timer_takedown;
engine->fb.init = nv10_fb_init;
engine->fb.takedown = nv10_fb_takedown;
@ -156,6 +160,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->mc.init = nv04_mc_init;
engine->mc.takedown = nv04_mc_takedown;
engine->timer.init = nv04_timer_init;
engine->timer.read = nv04_timer_read;
engine->timer.takedown = nv04_timer_takedown;
engine->fb.init = nv10_fb_init;
engine->fb.takedown = nv10_fb_takedown;
@ -182,6 +187,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->mc.init = nv04_mc_init;
engine->mc.takedown = nv04_mc_takedown;
engine->timer.init = nv04_timer_init;
engine->timer.read = nv04_timer_read;
engine->timer.takedown = nv04_timer_takedown;
engine->fb.init = nv10_fb_init;
engine->fb.takedown = nv10_fb_takedown;
@ -208,6 +214,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->mc.init = nv40_mc_init;
engine->mc.takedown = nv40_mc_takedown;
engine->timer.init = nv04_timer_init;
engine->timer.read = nv04_timer_read;
engine->timer.takedown = nv04_timer_takedown;
engine->fb.init = nv40_fb_init;
engine->fb.takedown = nv40_fb_takedown;
@ -235,6 +242,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->mc.init = nv50_mc_init;
engine->mc.takedown = nv50_mc_takedown;
engine->timer.init = nouveau_stub_init;
engine->timer.read = nouveau_stub_timer_read;
engine->timer.takedown = nouveau_stub_takedown;
engine->fb.init = nouveau_stub_init;
engine->fb.takedown = nouveau_stub_takedown;

21
shared-core/nv04_timer.c
View File

@ -17,6 +17,27 @@ nv04_timer_init(struct drm_device *dev)
return 0;
}
uint64_t
nv04_timer_read(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t low;
/* From kmmio dumps on nv28 this looks like how the blob does this.
* It reads the high dword twice, before and after.
* The only explanation seems to be that the 64-bit timer counter
* advances between high and low dword reads and may corrupt the
* result. Not confirmed.
*/
uint32_t high2 = NV_READ(NV04_PTIMER_TIME_1);
uint32_t high1;
do {
high1 = high2;
low = NV_READ(NV04_PTIMER_TIME_0);
high2 = NV_READ(NV04_PTIMER_TIME_1);
} while(high1 != high2);
return (((uint64_t)high2) << 32) | (uint64_t)low;
}
void
nv04_timer_takedown(struct drm_device *dev)
{