drm/nouveau/core: define ACR subdev

This will replace the current SECBOOT subdev for handling firmware on
secure falcons.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

@@ -23,6 +23,7 @@ enum nvkm_devidx {
 	NVKM_SUBDEV_MMU,
 	NVKM_SUBDEV_BAR,
 	NVKM_SUBDEV_FAULT,
+	NVKM_SUBDEV_ACR,
 	NVKM_SUBDEV_PMU,
 	NVKM_SUBDEV_VOLT,
 	NVKM_SUBDEV_ICCSENSE,
@@ -129,6 +130,7 @@ struct nvkm_device {
 		struct notifier_block nb;
 	} acpi;
 
+	struct nvkm_acr *acr;
 	struct nvkm_bar *bar;
 	struct nvkm_bios *bios;
 	struct nvkm_bus *bus;
@@ -202,6 +204,7 @@ struct nvkm_device_quirk {
 struct nvkm_device_chip {
 	const char *name;
 
+	int (*acr     )(struct nvkm_device *, int idx, struct nvkm_acr **);
 	int (*bar     )(struct nvkm_device *, int idx, struct nvkm_bar **);
 	int (*bios    )(struct nvkm_device *, int idx, struct nvkm_bios **);
 	int (*bus     )(struct nvkm_device *, int idx, struct nvkm_bus **);

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

+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_ACR_H__
+#define __NVKM_ACR_H__
+#define nvkm_acr(p) container_of((p), struct nvkm_acr, subdev)
+#include <core/subdev.h>
+
+struct nvkm_acr {
+	struct nvkm_subdev subdev;
+};
+#endif

drivers/gpu/drm/nouveau/nvkm/core/subdev.c

@@ -30,6 +30,7 @@ static struct lock_class_key nvkm_subdev_lock_class[NVKM_SUBDEV_NR];
 
 const char *
 nvkm_subdev_name[NVKM_SUBDEV_NR] = {
+	[NVKM_SUBDEV_ACR     ] = "acr",
 	[NVKM_SUBDEV_BAR     ] = "bar",
 	[NVKM_SUBDEV_VBIOS   ] = "bios",
 	[NVKM_SUBDEV_BUS     ] = "bus",

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

@@ -2638,6 +2638,7 @@ nvkm_device_subdev(struct nvkm_device *device, int index)
 
 	switch (index) {
 #define _(n,p,m) case NVKM_SUBDEV_##n: if (p) return (m); break
+	_(ACR     , device->acr     , &device->acr->subdev);
 	_(BAR     , device->bar     , &device->bar->subdev);
 	_(VBIOS   , device->bios    , &device->bios->subdev);
 	_(BUS     , device->bus     , &device->bus->subdev);
@@ -3144,6 +3145,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
 	}                                                                      \
 	break
 		switch (i) {
+		_(NVKM_SUBDEV_ACR     ,      acr);
 		_(NVKM_SUBDEV_BAR     ,      bar);
 		_(NVKM_SUBDEV_VBIOS   ,     bios);
 		_(NVKM_SUBDEV_BUS     ,      bus);

drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h

@@ -3,6 +3,7 @@
 #define __NVKM_DEVICE_PRIV_H__
 #include <core/device.h>
 
+#include <subdev/acr.h>
 #include <subdev/bar.h>
 #include <subdev/bios.h>
 #include <subdev/bus.h>

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

 # SPDX-License-Identifier: MIT
+include $(src)/nvkm/subdev/acr/Kbuild
 include $(src)/nvkm/subdev/bar/Kbuild
 include $(src)/nvkm/subdev/bios/Kbuild
 include $(src)/nvkm/subdev/bus/Kbuild

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

+# SPDX-License-Identifier: MIT