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authorAlexandre Courbot <acourbot@nvidia.com>2015-09-03 17:48:13 +0900
committerBen Skeggs <bskeggs@redhat.com>2015-11-03 14:57:28 +1000
commit9a639920269daef18e13d3e8955978646f435d13 (patch)
tree69e8cfe9e9685b0a2f93e046b29f1dda5e729021
parent1c4b0d12f487a874928ad6efd73a8939c6d23be4 (diff)
timer: re-introduce nvkm_wait_xsec macros
Reintroduce macros allowing us to test a register against a certain mask, since this is the most common usage pattern for the more generic nvkm_xsec macros and makes the code more concise and readable. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r--drm/nouveau/include/nvkm/subdev/timer.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/drm/nouveau/include/nvkm/subdev/timer.h b/drm/nouveau/include/nvkm/subdev/timer.h
index 62ed0880..82d3e289 100644
--- a/drm/nouveau/include/nvkm/subdev/timer.h
+++ b/drm/nouveau/include/nvkm/subdev/timer.h
@@ -59,6 +59,16 @@ void nvkm_timer_alarm_cancel(struct nvkm_timer *, struct nvkm_alarm *);
#define nvkm_usec(d,u,cond...) nvkm_nsec((d), (u) * 1000, ##cond)
#define nvkm_msec(d,m,cond...) nvkm_usec((d), (m) * 1000, ##cond)
+#define nvkm_wait_nsec(d,n,addr,mask,data) \
+ nvkm_nsec(d, n, \
+ if ((nvkm_rd32(d, (addr)) & (mask)) == (data)) \
+ break; \
+ )
+#define nvkm_wait_usec(d,u,addr,mask,data) \
+ nvkm_wait_nsec((d), (u) * 1000, (addr), (mask), (data))
+#define nvkm_wait_msec(d,m,addr,mask,data) \
+ nvkm_wait_usec((d), (m) * 1000, (addr), (mask), (data))
+
int nv04_timer_new(struct nvkm_device *, int, struct nvkm_timer **);
int nv40_timer_new(struct nvkm_device *, int, struct nvkm_timer **);
int nv41_timer_new(struct nvkm_device *, int, struct nvkm_timer **);