drm/nouveau/gsp: add funcs

Ampere.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.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_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)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_DEVINIT , struct nvkm_devinit ,  devinit)
-NVKM_LAYOUT_ONCE(NVKM_SUBDEV_TOP     , struct nvkm_top     ,      top)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_PRIVRING, struct nvkm_subdev  , privring)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_GPIO    , struct nvkm_gpio    ,     gpio)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_I2C     , struct nvkm_i2c     ,      i2c)
@@ -24,7 +25,6 @@ NVKM_LAYOUT_ONCE(NVKM_SUBDEV_VOLT    , struct nvkm_volt    ,     volt)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_ICCSENSE, struct nvkm_iccsense, iccsense)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_THERM   , struct nvkm_therm   ,    therm)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_CLK     , struct nvkm_clk     ,      clk)
-NVKM_LAYOUT_ONCE(NVKM_SUBDEV_GSP     , struct nvkm_gsp     ,      gsp)
 NVKM_LAYOUT_INST(NVKM_SUBDEV_IOCTRL  , struct nvkm_subdev  ,   ioctrl, 3)
 NVKM_LAYOUT_ONCE(NVKM_SUBDEV_FLA     , struct nvkm_subdev  ,      fla)
 

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

@@ -5,7 +5,9 @@
 #include <core/falcon.h>
 
 struct nvkm_gsp {
+	const struct nvkm_gsp_func *func;
 	struct nvkm_subdev subdev;
+
 	struct nvkm_falcon falcon;
 };
 

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

@@ -53,5 +53,7 @@ nvkm_gsp_new_(const struct nvkm_gsp_fwif *fwif, struct nvkm_device *device,
 	if (IS_ERR(fwif))
 		return PTR_ERR(fwif);
 
-	return nvkm_falcon_ctor(fwif->flcn, &gsp->subdev, gsp->subdev.name, 0, &gsp->falcon);
+	gsp->func = fwif->func;
+
+	return nvkm_falcon_ctor(gsp->func->flcn, &gsp->subdev, gsp->subdev.name, 0, &gsp->falcon);
 }

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

@@ -36,6 +36,11 @@ gv100_gsp_flcn = {
 	.disable = nvkm_falcon_v1_disable,
 };
 
+static const struct nvkm_gsp_func
+gv100_gsp = {
+	.flcn = &gv100_gsp_flcn,
+};
+
 static int
 gv100_gsp_nofw(struct nvkm_gsp *gsp, int ver, const struct nvkm_gsp_fwif *fwif)
 {
@@ -43,8 +48,8 @@ gv100_gsp_nofw(struct nvkm_gsp *gsp, int ver, const struct nvkm_gsp_fwif *fwif)
 }
 
 static struct nvkm_gsp_fwif
-gv100_gsp[] = {
-	{ -1, gv100_gsp_nofw, &gv100_gsp_flcn },
+gv100_gsps[] = {
+	{ -1, gv100_gsp_nofw, &gv100_gsp },
 	{}
 };
 
@@ -52,5 +57,5 @@ int
 gv100_gsp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	      struct nvkm_gsp **pgsp)
 {
-	return nvkm_gsp_new_(gv100_gsp, device, type, inst, pgsp);
+	return nvkm_gsp_new_(gv100_gsps, device, type, inst, pgsp);
 }

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

@@ -4,10 +4,14 @@
 #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_falcon_func *flcn;
+	const struct nvkm_gsp_func *func;
 };
 
 int nvkm_gsp_new_(const struct nvkm_gsp_fwif *, struct nvkm_device *, enum nvkm_subdev_type, int,