drm/nouveau/disp/nv50-: implement a common supervisor 2.0

This makes use of all the additional routing and state added in previous
commits, making it possible to deal with GM20x macro link routing, while
also sharing code between the NV50 and GF119 implementations.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 20 insertions, 90 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
index 96d2815..6c51045 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
@@ -226,65 +226,6 @@ exec_lookup(struct nv50_disp *disp, int head, int or, u32 ctrl,
 }
 
 static struct nvkm_output *
-exec_script(struct nv50_disp *disp, int head, int id)
-{
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	struct nvkm_bios *bios = device->bios;
-	struct nvkm_output *outp;
-	struct nvbios_outp info;
-	u8  ver, hdr, cnt, len;
-	u32 data, ctrl = 0;
-	u32 reg;
-	int i;
-
-	/* DAC */
-	for (i = 0; !(ctrl & (1 << head)) && i < disp->func->dac.nr; i++)
-		ctrl = nvkm_rd32(device, 0x610b5c + (i * 8));
-
-	/* SOR */
-	if (!(ctrl & (1 << head))) {
-		if (device->chipset  < 0x90 ||
-		    device->chipset == 0x92 ||
-		    device->chipset == 0xa0) {
-			reg = 0x610b74;
-		} else {
-			reg = 0x610798;
-		}
-		for (i = 0; !(ctrl & (1 << head)) && i < disp->func->sor.nr; i++)
-			ctrl = nvkm_rd32(device, reg + (i * 8));
-		i += 4;
-	}
-
-	/* PIOR */
-	if (!(ctrl & (1 << head))) {
-		for (i = 0; !(ctrl & (1 << head)) && i < disp->func->pior.nr; i++)
-			ctrl = nvkm_rd32(device, 0x610b84 + (i * 8));
-		i += 8;
-	}
-
-	if (!(ctrl & (1 << head)))
-		return NULL;
-	i--;
-
-	outp = exec_lookup(disp, head, i, ctrl, &data, &ver, &hdr, &cnt, &len, &info);
-	if (outp) {
-		struct nvbios_init init = {
-			.subdev = subdev,
-			.bios = bios,
-			.offset = info.script[id],
-			.outp = &outp->info,
-			.crtc = head,
-			.execute = 1,
-		};
-
-		nvbios_exec(&init);
-	}
-
-	return outp;
-}
-
-static struct nvkm_output *
 exec_clkcmp(struct nv50_disp *disp, int head, int id, u32 pclk, u32 *conf)
 {
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
@@ -601,38 +542,27 @@ nv50_disp_intr_unk20_1(struct nv50_disp *disp, int head)
 		nvkm_devinit_pll_set(devinit, PLL_VPLL0 + head, pclk);
 }
 
-static void
-nv50_disp_intr_unk20_0(struct nv50_disp *disp, int head)
+void
+nv50_disp_super_2_0(struct nv50_disp *disp, struct nvkm_head *head)
 {
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_output *outp = exec_script(disp, head, 2);
-
-	/* the binary driver does this outside of the supervisor handling
-	 * (after the third supervisor from a detach).  we (currently?)
-	 * allow both detach/attach to happen in the same set of
-	 * supervisor interrupts, so it would make sense to execute this
-	 * (full power down?) script after all the detach phases of the
-	 * supervisor handling.  like with training if needed from the
-	 * second supervisor, nvidia doesn't do this, so who knows if it's
-	 * entirely safe, but it does appear to work..
-	 *
-	 * without this script being run, on some configurations i've
-	 * seen, switching from DP to TMDS on a DP connector may result
-	 * in a blank screen (SOR_PWR off/on can restore it)
+	struct nvkm_outp *outp;
+	struct nvkm_ior *ior;
+
+	/* Determine which OR, if any, we're detaching from the head. */
+	HEAD_DBG(head, "supervisor 2.0");
+	ior = nv50_disp_super_ior_arm(head);
+	if (!ior)
+		return;
+
+	/* Execute OffInt2 IED script. */
+	nv50_disp_super_ied_off(head, ior, 2);
+
+	/* If we're shutting down the OR's only active head, execute
+	 * the output path's release function.
 	 */
-	if (outp && outp->info.type == DCB_OUTPUT_DP) {
-		struct nvkm_output_dp *outpdp = nvkm_output_dp(outp);
-		struct nvbios_init init = {
-			.subdev = subdev,
-			.bios = subdev->device->bios,
-			.outp = &outp->info,
-			.crtc = head,
-			.offset = outpdp->info.script[4],
-			.execute = 1,
-		};
-
-		atomic_set(&outpdp->lt.done, 0);
-		nvbios_exec(&init);
+	if (ior->arm.head == (1 << head->id)) {
+		if ((outp = ior->arm.outp) && outp->func->release)
+			outp->func->release(outp, ior);
 	}
 }
 
@@ -695,7 +625,7 @@ nv50_disp_super(struct work_struct *work)
 		list_for_each_entry(head, &disp->base.head, head) {
 			if (!(super & (0x00000080 << head->id)))
 				continue;
-			nv50_disp_intr_unk20_0(disp, head->id);
+			nv50_disp_super_2_0(disp, head);
 		}
 		nvkm_outp_route(&disp->base);
 		list_for_each_entry(head, &disp->base.head, head) {