drm/nouveau/fb/tu102-: fix register used to determine scrub status

Turing apparently needs to use the same register we use on Ampere.

Not executing the scrubber ucode when required would result in large
areas of VRAM being inaccessible to the driver.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130223715.1831509-2-bskeggs@redhat.com

drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h

@@ -97,6 +97,7 @@ int gp100_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct n
 int gp102_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fb **);
 int gp10b_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fb **);
 int gv100_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fb **);
+int tu102_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fb **);
 int ga100_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fb **);
 int ga102_fb_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fb **);
 

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2405,7 +2405,7 @@ nv162_chipset = {
 	.bus      = { 0x00000001, gf100_bus_new },
 	.devinit  = { 0x00000001, tu102_devinit_new },
 	.fault    = { 0x00000001, tu102_fault_new },
-	.fb       = { 0x00000001, gv100_fb_new },
+	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
 	.gsp      = { 0x00000001, gv100_gsp_new },
@@ -2440,7 +2440,7 @@ nv164_chipset = {
 	.bus      = { 0x00000001, gf100_bus_new },
 	.devinit  = { 0x00000001, tu102_devinit_new },
 	.fault    = { 0x00000001, tu102_fault_new },
-	.fb       = { 0x00000001, gv100_fb_new },
+	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
 	.gsp      = { 0x00000001, gv100_gsp_new },
@@ -2475,7 +2475,7 @@ nv166_chipset = {
 	.bus      = { 0x00000001, gf100_bus_new },
 	.devinit  = { 0x00000001, tu102_devinit_new },
 	.fault    = { 0x00000001, tu102_fault_new },
-	.fb       = { 0x00000001, gv100_fb_new },
+	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
 	.gsp      = { 0x00000001, gv100_gsp_new },
@@ -2510,7 +2510,7 @@ nv167_chipset = {
 	.bus      = { 0x00000001, gf100_bus_new },
 	.devinit  = { 0x00000001, tu102_devinit_new },
 	.fault    = { 0x00000001, tu102_fault_new },
-	.fb       = { 0x00000001, gv100_fb_new },
+	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
 	.gsp      = { 0x00000001, gv100_gsp_new },
@@ -2545,7 +2545,7 @@ nv168_chipset = {
 	.bus      = { 0x00000001, gf100_bus_new },
 	.devinit  = { 0x00000001, tu102_devinit_new },
 	.fault    = { 0x00000001, tu102_fault_new },
-	.fb       = { 0x00000001, gv100_fb_new },
+	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
 	.gsp      = { 0x00000001, gv100_gsp_new },

drivers/gpu/drm/nouveau/nvkm/subdev/fb/Kbuild

@@ -32,6 +32,7 @@ nvkm-y += nvkm/subdev/fb/gp100.o
 nvkm-y += nvkm/subdev/fb/gp102.o
 nvkm-y += nvkm/subdev/fb/gp10b.o
 nvkm-y += nvkm/subdev/fb/gv100.o
+nvkm-y += nvkm/subdev/fb/tu102.o
 nvkm-y += nvkm/subdev/fb/ga100.o
 nvkm-y += nvkm/subdev/fb/ga102.o
 

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ga102.c

@@ -40,12 +40,6 @@ ga102_fb_vpr_scrub(struct nvkm_fb *fb)
 	return ret;
 }
 
-static bool
-ga102_fb_vpr_scrub_required(struct nvkm_fb *fb)
-{
-	return (nvkm_rd32(fb->subdev.device, 0x1fa80c) & 0x00000010) != 0;
-}
-
 static const struct nvkm_fb_func
 ga102_fb = {
 	.dtor = gf100_fb_dtor,
@@ -56,7 +50,7 @@ ga102_fb = {
 	.sysmem.flush_page_init = gf100_fb_sysmem_flush_page_init,
 	.ram_new = ga102_ram_new,
 	.default_bigpage = 16,
-	.vpr.scrub_required = ga102_fb_vpr_scrub_required,
+	.vpr.scrub_required = tu102_fb_vpr_scrub_required,
 	.vpr.scrub = ga102_fb_vpr_scrub,
 };
 

drivers/gpu/drm/nouveau/nvkm/subdev/fb/gv100.c

@@ -49,8 +49,3 @@ gv100_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, s
 }
 
 MODULE_FIRMWARE("nvidia/gv100/nvdec/scrubber.bin");
-MODULE_FIRMWARE("nvidia/tu102/nvdec/scrubber.bin");
-MODULE_FIRMWARE("nvidia/tu104/nvdec/scrubber.bin");
-MODULE_FIRMWARE("nvidia/tu106/nvdec/scrubber.bin");
-MODULE_FIRMWARE("nvidia/tu116/nvdec/scrubber.bin");
-MODULE_FIRMWARE("nvidia/tu117/nvdec/scrubber.bin");

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

@@ -89,4 +89,6 @@ bool gp102_fb_vpr_scrub_required(struct nvkm_fb *);
 int gp102_fb_vpr_scrub(struct nvkm_fb *);
 
 int gv100_fb_init_page(struct nvkm_fb *);
+
+bool tu102_fb_vpr_scrub_required(struct nvkm_fb *);
 #endif

drivers/gpu/drm/nouveau/nvkm/subdev/fb/tu102.c

+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "gf100.h"
+#include "ram.h"
+
+bool
+tu102_fb_vpr_scrub_required(struct nvkm_fb *fb)
+{
+	return (nvkm_rd32(fb->subdev.device, 0x1fa80c) & 0x00000010) != 0;
+}
+
+static const struct nvkm_fb_func
+tu102_fb = {
+	.dtor = gf100_fb_dtor,
+	.oneinit = gf100_fb_oneinit,
+	.init = gm200_fb_init,
+	.init_page = gv100_fb_init_page,
+	.init_unkn = gp100_fb_init_unkn,
+	.sysmem.flush_page_init = gf100_fb_sysmem_flush_page_init,
+	.vpr.scrub_required = tu102_fb_vpr_scrub_required,
+	.vpr.scrub = gp102_fb_vpr_scrub,
+	.ram_new = gp100_ram_new,
+	.default_bigpage = 16,
+};
+
+int
+tu102_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
+{
+	return gp102_fb_new_(&tu102_fb, device, type, inst, pfb);
+}
+
+MODULE_FIRMWARE("nvidia/tu102/nvdec/scrubber.bin");
+MODULE_FIRMWARE("nvidia/tu104/nvdec/scrubber.bin");
+MODULE_FIRMWARE("nvidia/tu106/nvdec/scrubber.bin");
+MODULE_FIRMWARE("nvidia/tu116/nvdec/scrubber.bin");
+MODULE_FIRMWARE("nvidia/tu117/nvdec/scrubber.bin");