drm/nouveau/pmu/gt215-: abstract detection of whether reset is needed

GT215, GF100-GP100, and GP10x are all different.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c

@@ -75,7 +75,7 @@ nvkm_pmu_reset(struct nvkm_pmu *pmu)
 {
 	struct nvkm_device *device = pmu->subdev.device;
 
-	if (!(nvkm_rd32(device, 0x000200) & 0x00002000))
+	if (!pmu->func->enabled(pmu))
 		return 0;
 
 	/* Inhibit interrupts, and wait for idle. */

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf100.c

@@ -34,12 +34,19 @@ gf100_pmu_reset(struct nvkm_pmu *pmu)
 	nvkm_mc_enable(device, NVKM_SUBDEV_PMU);
 }
 
+bool
+gf100_pmu_enabled(struct nvkm_pmu *pmu)
+{
+	return nvkm_mc_enabled(pmu->subdev.device, NVKM_SUBDEV_PMU);
+}
+
 static const struct nvkm_pmu_func
 gf100_pmu = {
 	.code.data = gf100_pmu_code,
 	.code.size = sizeof(gf100_pmu_code),
 	.data.data = gf100_pmu_data,
 	.data.size = sizeof(gf100_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf119.c

@@ -30,6 +30,7 @@ gf119_pmu = {
 	.code.size = sizeof(gf119_pmu_code),
 	.data.data = gf119_pmu_data,
 	.data.size = sizeof(gf119_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk104.c

@@ -109,6 +109,7 @@ gk104_pmu = {
 	.code.size = sizeof(gk104_pmu_code),
 	.data.data = gk104_pmu_data,
 	.data.size = sizeof(gk104_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk110.c

@@ -88,6 +88,7 @@ gk110_pmu = {
 	.code.size = sizeof(gk110_pmu_code),
 	.data.data = gk110_pmu_data,
 	.data.size = sizeof(gk110_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk208.c

@@ -30,6 +30,7 @@ gk208_pmu = {
 	.code.size = sizeof(gk208_pmu_code),
 	.data.data = gk208_pmu_data,
 	.data.size = sizeof(gk208_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk20a.c

@@ -196,6 +196,7 @@ gk20a_dvfs_data= {
 
 static const struct nvkm_pmu_func
 gk20a_pmu = {
+	.enabled = gf100_pmu_enabled,
 	.init = gk20a_pmu_init,
 	.fini = gk20a_pmu_fini,
 	.reset = gf100_pmu_reset,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm107.c

@@ -32,6 +32,7 @@ gm107_pmu = {
 	.code.size = sizeof(gm107_pmu_code),
 	.data.data = gm107_pmu_data,
 	.data.size = sizeof(gm107_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c

@@ -38,6 +38,7 @@ gm20b_pmu_recv(struct nvkm_pmu *pmu)
 
 static const struct nvkm_pmu_func
 gm20b_pmu = {
+	.enabled = gf100_pmu_enabled,
 	.intr = gt215_pmu_intr,
 	.recv = gm20b_pmu_recv,
 };

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp100.c

@@ -25,6 +25,7 @@
 
 static const struct nvkm_pmu_func
 gp100_pmu = {
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 };
 

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c

@@ -31,8 +31,15 @@ gp102_pmu_reset(struct nvkm_pmu *pmu)
 	nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000000);
 }
 
+static bool
+gp102_pmu_enabled(struct nvkm_pmu *pmu)
+{
+	return !(nvkm_rd32(pmu->subdev.device, 0x10a3c0) & 0x00000001);
+}
+
 static const struct nvkm_pmu_func
 gp102_pmu = {
+	.enabled = gp102_pmu_enabled,
 	.reset = gp102_pmu_reset,
 };
 

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gt215.c

@@ -189,6 +189,12 @@ gt215_pmu_reset(struct nvkm_pmu *pmu)
 	nvkm_rd32(device, 0x022210);
 }
 
+static bool
+gt215_pmu_enabled(struct nvkm_pmu *pmu)
+{
+	return nvkm_rd32(pmu->subdev.device, 0x022210) & 0x00000001;
+}
+
 int
 gt215_pmu_init(struct nvkm_pmu *pmu)
 {
@@ -241,6 +247,7 @@ gt215_pmu = {
 	.code.size = sizeof(gt215_pmu_code),
 	.data.data = gt215_pmu_data,
 	.data.size = sizeof(gt215_pmu_data),
+	.enabled = gt215_pmu_enabled,
 	.reset = gt215_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h

@@ -20,6 +20,7 @@ struct nvkm_pmu_func {
 		u32  size;
 	} data;
 
+	bool (*enabled)(struct nvkm_pmu *);
 	void (*reset)(struct nvkm_pmu *);
 	int (*init)(struct nvkm_pmu *);
 	void (*fini)(struct nvkm_pmu *);
@@ -36,6 +37,7 @@ void gt215_pmu_intr(struct nvkm_pmu *);
 void gt215_pmu_recv(struct nvkm_pmu *);
 int gt215_pmu_send(struct nvkm_pmu *, u32[2], u32, u32, u32, u32);
 
+bool gf100_pmu_enabled(struct nvkm_pmu *);
 void gf100_pmu_reset(struct nvkm_pmu *);
 
 void gk110_pmu_pgob(struct nvkm_pmu *, bool);