drm/nouveau/gsp: prepare for GSP-RM

- move TOP after GSP, so we can disable TOP if GSP is in use
- provide plumbing to support falcon-only and GSP-RM paths
- provide a method for subdevs to detect GSP-RM paths
- split tu102/tu116/ga100 paths from gv100, which can't support GSP-RM
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-5-skeggsb@gmail.com

drivers/gpu/drm/nouveau/include/nvkm/core/layout.h

 /* SPDX-License-Identifier: MIT */
-NVKM_LAYOUT_ONCE(NVKM_SUBDEV_TOP     , struct nvkm_top     ,      top)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_GSP     , struct nvkm_gsp     ,      gsp)
+NVKM_LAYOUT_ONCE(NVKM_SUBDEV_TOP     , struct nvkm_top     ,      top)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_VFN     , struct nvkm_vfn     ,      vfn)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_PCI     , struct nvkm_pci     ,      pci)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_VBIOS   , struct nvkm_bios    ,     bios)

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

@@ -11,6 +11,15 @@ struct nvkm_gsp {
 	struct nvkm_falcon falcon;
 };
 
+static inline bool
+nvkm_gsp_rm(struct nvkm_gsp *gsp)
+{
+	return false;
+}
+
 int gv100_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
+int tu102_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
+int tu116_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
+int ga100_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 int ga102_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 #endif

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

@@ -2408,7 +2408,7 @@ nv162_chipset = {
 	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
-	.gsp      = { 0x00000001, gv100_gsp_new },
+	.gsp      = { 0x00000001, tu102_gsp_new },
 	.i2c      = { 0x00000001, gm200_i2c_new },
 	.imem     = { 0x00000001, nv50_instmem_new },
 	.ltc      = { 0x00000001, gp102_ltc_new },
@@ -2443,7 +2443,7 @@ nv164_chipset = {
 	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
-	.gsp      = { 0x00000001, gv100_gsp_new },
+	.gsp      = { 0x00000001, tu102_gsp_new },
 	.i2c      = { 0x00000001, gm200_i2c_new },
 	.imem     = { 0x00000001, nv50_instmem_new },
 	.ltc      = { 0x00000001, gp102_ltc_new },
@@ -2478,7 +2478,7 @@ nv166_chipset = {
 	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
-	.gsp      = { 0x00000001, gv100_gsp_new },
+	.gsp      = { 0x00000001, tu102_gsp_new },
 	.i2c      = { 0x00000001, gm200_i2c_new },
 	.imem     = { 0x00000001, nv50_instmem_new },
 	.ltc      = { 0x00000001, gp102_ltc_new },
@@ -2513,7 +2513,7 @@ nv167_chipset = {
 	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
-	.gsp      = { 0x00000001, gv100_gsp_new },
+	.gsp      = { 0x00000001, tu116_gsp_new },
 	.i2c      = { 0x00000001, gm200_i2c_new },
 	.imem     = { 0x00000001, nv50_instmem_new },
 	.ltc      = { 0x00000001, gp102_ltc_new },
@@ -2548,7 +2548,7 @@ nv168_chipset = {
 	.fb       = { 0x00000001, tu102_fb_new },
 	.fuse     = { 0x00000001, gm107_fuse_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
-	.gsp      = { 0x00000001, gv100_gsp_new },
+	.gsp      = { 0x00000001, tu116_gsp_new },
 	.i2c      = { 0x00000001, gm200_i2c_new },
 	.imem     = { 0x00000001, nv50_instmem_new },
 	.ltc      = { 0x00000001, gp102_ltc_new },
@@ -2580,6 +2580,7 @@ nv170_chipset = {
 	.fault    = { 0x00000001, tu102_fault_new },
 	.fb       = { 0x00000001, ga100_fb_new },
 	.gpio     = { 0x00000001, gk104_gpio_new },
+	.gsp      = { 0x00000001, ga100_gsp_new },
 	.i2c      = { 0x00000001, gm200_i2c_new },
 	.imem     = { 0x00000001, nv50_instmem_new },
 	.mc       = { 0x00000001, ga100_mc_new },

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

 # SPDX-License-Identifier: MIT
 nvkm-y += nvkm/subdev/gsp/base.o
 nvkm-y += nvkm/subdev/gsp/gv100.o
+nvkm-y += nvkm/subdev/gsp/tu102.o
+nvkm-y += nvkm/subdev/gsp/tu116.o
+nvkm-y += nvkm/subdev/gsp/ga100.o
 nvkm-y += nvkm/subdev/gsp/ga102.o

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

@@ -20,15 +20,48 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 #include "priv.h"
-#include <core/falcon.h>
-#include <core/firmware.h>
-#include <subdev/acr.h>
-#include <subdev/top.h>
+
+static int
+nvkm_gsp_fini(struct nvkm_subdev *subdev, bool suspend)
+{
+	struct nvkm_gsp *gsp = nvkm_gsp(subdev);
+
+	if (!gsp->func->fini)
+		return 0;
+
+	return gsp->func->fini(gsp, suspend);
+}
+
+static int
+nvkm_gsp_init(struct nvkm_subdev *subdev)
+{
+	struct nvkm_gsp *gsp = nvkm_gsp(subdev);
+
+	if (!gsp->func->init)
+		return 0;
+
+	return gsp->func->init(gsp);
+}
+
+static int
+nvkm_gsp_oneinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_gsp *gsp = nvkm_gsp(subdev);
+
+	if (!gsp->func->oneinit)
+		return 0;
+
+	return gsp->func->oneinit(gsp);
+}
 
 static void *
 nvkm_gsp_dtor(struct nvkm_subdev *subdev)
 {
 	struct nvkm_gsp *gsp = nvkm_gsp(subdev);
+
+	if (gsp->func && gsp->func->dtor)
+		gsp->func->dtor(gsp);
+
 	nvkm_falcon_dtor(&gsp->falcon);
 	return gsp;
 }
@@ -36,6 +69,9 @@ nvkm_gsp_dtor(struct nvkm_subdev *subdev)
 static const struct nvkm_subdev_func
 nvkm_gsp = {
 	.dtor = nvkm_gsp_dtor,
+	.oneinit = nvkm_gsp_oneinit,
+	.init = nvkm_gsp_init,
+	.fini = nvkm_gsp_fini,
 };
 
 int
@@ -55,5 +91,6 @@ nvkm_gsp_new_(const struct nvkm_gsp_fwif *fwif, struct nvkm_device *device,
 
 	gsp->func = fwif->func;
 
-	return nvkm_falcon_ctor(gsp->func->flcn, &gsp->subdev, gsp->subdev.name, 0, &gsp->falcon);
+	return nvkm_falcon_ctor(gsp->func->flcn, &gsp->subdev, gsp->subdev.name, 0x110000,
+				&gsp->falcon);
 }

drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga100.c

+/*
+ * Copyright 2022 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 "priv.h"
+
+static struct nvkm_gsp_fwif
+ga100_gsps[] = {
+	{ -1, gv100_gsp_nofw, &gv100_gsp },
+	{}
+};
+
+int
+ga100_gsp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	      struct nvkm_gsp **pgsp)
+{
+	return nvkm_gsp_new_(ga100_gsps, device, type, inst, pgsp);
+}

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

@@ -39,15 +39,9 @@ ga102_gsp = {
 	.flcn = &ga102_gsp_flcn,
 };
 
-static int
-ga102_gsp_nofw(struct nvkm_gsp *gsp, int ver, const struct nvkm_gsp_fwif *fwif)
-{
-	return 0;
-}
-
 static struct nvkm_gsp_fwif
 ga102_gsps[] = {
-	{ -1, ga102_gsp_nofw, &ga102_gsp },
+	{ -1, gv100_gsp_nofw, &ga102_gsp },
 	{}
 };
 

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

@@ -34,12 +34,12 @@ gv100_gsp_flcn = {
 	.dmem_pio = &gm200_flcn_dmem_pio,
 };
 
-static const struct nvkm_gsp_func
+const struct nvkm_gsp_func
 gv100_gsp = {
 	.flcn = &gv100_gsp_flcn,
 };
 
-static int
+int
 gv100_gsp_nofw(struct nvkm_gsp *gsp, int ver, const struct nvkm_gsp_fwif *fwif)
 {
 	return 0;

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

@@ -4,16 +4,25 @@
 #include <subdev/gsp.h>
 enum nvkm_acr_lsf_id;
 
-struct nvkm_gsp_func {
-	const struct nvkm_falcon_func *flcn;
-};
-
 struct nvkm_gsp_fwif {
 	int version;
 	int (*load)(struct nvkm_gsp *, int ver, const struct nvkm_gsp_fwif *);
 	const struct nvkm_gsp_func *func;
 };
 
+int gv100_gsp_nofw(struct nvkm_gsp *, int, const struct nvkm_gsp_fwif *);
+
+struct nvkm_gsp_func {
+	const struct nvkm_falcon_func *flcn;
+
+	void (*dtor)(struct nvkm_gsp *);
+	int (*oneinit)(struct nvkm_gsp *);
+	int (*init)(struct nvkm_gsp *);
+	int (*fini)(struct nvkm_gsp *, bool suspend);
+};
+
 int nvkm_gsp_new_(const struct nvkm_gsp_fwif *, struct nvkm_device *, enum nvkm_subdev_type, int,
 		  struct nvkm_gsp **);
+
+extern const struct nvkm_gsp_func gv100_gsp;
 #endif

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

+/*
+ * Copyright 2022 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 "priv.h"
+
+static struct nvkm_gsp_fwif
+tu102_gsps[] = {
+	{ -1, gv100_gsp_nofw, &gv100_gsp },
+	{}
+};
+
+int
+tu102_gsp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	      struct nvkm_gsp **pgsp)
+{
+	return nvkm_gsp_new_(tu102_gsps, device, type, inst, pgsp);
+}

drivers/gpu/drm/nouveau/nvkm/subdev/gsp/tu116.c

+/*
+ * Copyright 2022 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 "priv.h"
+
+static struct nvkm_gsp_fwif
+tu116_gsps[] = {
+	{ -1, gv100_gsp_nofw, &gv100_gsp },
+	{}
+};
+
+int
+tu116_gsp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	      struct nvkm_gsp **pgsp)
+{
+	return nvkm_gsp_new_(tu116_gsps, device, type, inst, pgsp);
+}