gr: rename gf100_gr_wait_idle for gk104_*

The status bit used in gf100_gr_wait_idle only exists starting gk104.
As the function is currently used in gk20a and later, rename the function
to use gk104 prefix to reflex correct supported chip version.

Signed-off-by: Xia Yang <xiay@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>

6 files changed, 46 insertions, 45 deletions

diff --git a/drm/nouveau/nvkm/engine/gr/ctxgk20a.c b/drm/nouveau/nvkm/engine/gr/ctxgk20a.c
index ad0a6cfe7..27be14cfa 100644
--- a/drm/nouveau/nvkm/engine/gr/ctxgk20a.c
+++ b/drm/nouveau/nvkm/engine/gr/ctxgk20a.c
@@ -34,7 +34,7 @@ gk20a_grctx_generate_main(struct gf100_gr *gr, struct gf100_grctx *info)
 
 	gf100_gr_mmio(gr, gr->fuc_sw_ctx);
 
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	idle_timeout_save = nvkm_rd32(device, 0x404154);
 	nvkm_wr32(device, 0x404154, 0x00000000);
@@ -57,13 +57,13 @@ gk20a_grctx_generate_main(struct gf100_gr *gr, struct gf100_grctx *info)
 
 	nvkm_mask(device, 0x5044b0, 0x08000000, 0x08000000);
 
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	nvkm_wr32(device, 0x404154, idle_timeout_save);
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	gf100_gr_mthd(gr, gr->fuc_method);
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	gf100_gr_icmd(gr, gr->fuc_bundle);
 	grctx->pagepool(info);
diff --git a/drm/nouveau/nvkm/engine/gr/ctxgm20b.c b/drm/nouveau/nvkm/engine/gr/ctxgm20b.c
index 670260402..c6062cadf 100644
--- a/drm/nouveau/nvkm/engine/gr/ctxgm20b.c
+++ b/drm/nouveau/nvkm/engine/gr/ctxgm20b.c
@@ -45,7 +45,7 @@ gm20b_grctx_generate_main(struct gf100_gr *gr, struct gf100_grctx *info)
 
 	gf100_gr_mmio(gr, gr->fuc_sw_ctx);
 
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	idle_timeout_save = nvkm_rd32(device, 0x404154);
 	nvkm_wr32(device, 0x404154, 0x00000000);
@@ -72,13 +72,13 @@ gm20b_grctx_generate_main(struct gf100_gr *gr, struct gf100_grctx *info)
 
 	gm204_grctx_generate_405b60(gr);
 
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	nvkm_wr32(device, 0x404154, idle_timeout_save);
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	gf100_gr_mthd(gr, gr->fuc_method);
-	gf100_gr_wait_idle(gr);
+	gk104_gr_wait_idle(gr);
 
 	gf100_gr_icmd(gr, gr->fuc_bundle);
 	grctx->pagepool(info);
diff --git a/drm/nouveau/nvkm/engine/gr/gf100.c b/drm/nouveau/nvkm/engine/gr/gf100.c
index 1f81069ed..26ede00f8 100644
--- a/drm/nouveau/nvkm/engine/gr/gf100.c
+++ b/drm/nouveau/nvkm/engine/gr/gf100.c
@@ -729,40 +729,6 @@ gf100_gr_zbc_init(struct gf100_gr *gr)
 		gf100_gr_zbc_clear_depth(gr, index);
 }
 
-/**
- * Wait until GR goes idle. GR is considered idle if it is disabled by the
- * MC (0x200) register, or GR is not busy and a context switch is not in
- * progress.
- */
-int
-gf100_gr_wait_idle(struct gf100_gr *gr)
-{
-	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	unsigned long end_jiffies = jiffies + msecs_to_jiffies(2000);
-	bool gr_enabled, ctxsw_active, gr_busy;
-
-	do {
-		/*
-		 * required to make sure FIFO_ENGINE_STATUS (0x2640) is
-		 * up-to-date
-		 */
-		nvkm_rd32(device, 0x400700);
-
-		gr_enabled = nvkm_rd32(device, 0x200) & 0x1000;
-		ctxsw_active = nvkm_rd32(device, 0x2640) & 0x8000;
-		gr_busy = nvkm_rd32(device, 0x40060c) & 0x1;
-
-		if (!gr_enabled || (!gr_busy && !ctxsw_active))
-			return 0;
-	} while (time_before(jiffies, end_jiffies));
-
-	nvkm_error(subdev,
-		   "wait for idle timeout (en: %d, ctxsw: %d, busy: %d)\n",
-		   gr_enabled, ctxsw_active, gr_busy);
-	return -EAGAIN;
-}
-
 void
 gf100_gr_mmio(struct gf100_gr *gr, const struct gf100_gr_pack *p)
 {
@@ -806,7 +772,7 @@ gf100_gr_icmd(struct gf100_gr *gr, const struct gf100_gr_pack *p)
 			 * GO_IDLE bundle
 			 */
 			if ((addr & 0xffff) == 0xe100)
-				gf100_gr_wait_idle(gr);
+				gk104_gr_wait_idle(gr);
 			nvkm_msec(device, 2000,
 				if (!(nvkm_rd32(device, 0x400700) & 0x00000004))
 					break;
diff --git a/drm/nouveau/nvkm/engine/gr/gf100.h b/drm/nouveau/nvkm/engine/gr/gf100.h
index 02e78b8d9..f42ac4650 100644
--- a/drm/nouveau/nvkm/engine/gr/gf100.h
+++ b/drm/nouveau/nvkm/engine/gr/gf100.h
@@ -198,12 +198,13 @@ extern struct gf100_gr_ucode gf100_gr_gpccs_ucode;
 extern struct gf100_gr_ucode gk110_gr_fecs_ucode;
 extern struct gf100_gr_ucode gk110_gr_gpccs_ucode;
 
-int  gf100_gr_wait_idle(struct gf100_gr *);
 void gf100_gr_mmio(struct gf100_gr *, const struct gf100_gr_pack *);
 void gf100_gr_icmd(struct gf100_gr *, const struct gf100_gr_pack *);
 void gf100_gr_mthd(struct gf100_gr *, const struct gf100_gr_pack *);
 int  gf100_gr_init_ctxctl(struct gf100_gr *);
 
+int  gk104_gr_wait_idle(struct gf100_gr *);
+
 /* register init value lists */
 
 extern const struct gf100_gr_init gf100_gr_init_main_0[];
diff --git a/drm/nouveau/nvkm/engine/gr/gk104.c b/drm/nouveau/nvkm/engine/gr/gk104.c
index abf54928a..56f8d53e6 100644
--- a/drm/nouveau/nvkm/engine/gr/gk104.c
+++ b/drm/nouveau/nvkm/engine/gr/gk104.c
@@ -177,6 +177,40 @@ gk104_gr_pack_mmio[] = {
  * PGRAPH engine/subdev functions
  ******************************************************************************/
 
+/**
+ * Wait until GR goes idle. GR is considered idle if it is disabled by the
+ * MC (0x200) register, or GR is not busy and a context switch is not in
+ * progress.
+ */
+int
+gk104_gr_wait_idle(struct gf100_gr *gr)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	unsigned long end_jiffies = jiffies + msecs_to_jiffies(2000);
+	bool gr_enabled, ctxsw_active, gr_busy;
+
+	do {
+		/*
+		 * required to make sure FIFO_ENGINE_STATUS (0x2640) is
+		 * up-to-date
+		 */
+		nvkm_rd32(device, 0x400700);
+
+		gr_enabled = nvkm_rd32(device, 0x200) & 0x1000;
+		ctxsw_active = nvkm_rd32(device, 0x2640) & 0x8000;
+		gr_busy = nvkm_rd32(device, 0x40060c) & 0x1;
+
+		if (!gr_enabled || (!gr_busy && !ctxsw_active))
+			return 0;
+	} while (time_before(jiffies, end_jiffies));
+
+	nvkm_error(subdev,
+		   "wait for idle timeout (en: %d, ctxsw: %d, busy: %d)\n",
+		   gr_enabled, ctxsw_active, gr_busy);
+	return -EAGAIN;
+}
+
 int
 gk104_gr_init(struct gf100_gr *gr)
 {
diff --git a/drm/nouveau/nvkm/engine/gr/gk20a.c b/drm/nouveau/nvkm/engine/gr/gk20a.c
index b8758d3b8..91a4d948e 100644
--- a/drm/nouveau/nvkm/engine/gr/gk20a.c
+++ b/drm/nouveau/nvkm/engine/gr/gk20a.c
@@ -198,7 +198,7 @@ gk20a_gr_init(struct gf100_gr *gr)
 	if (ret)
 		return ret;
 
-	ret = gf100_gr_wait_idle(gr);
+	ret = gk104_gr_wait_idle(gr);
 	if (ret)
 		return ret;