drm/nouveau/client: add method to retrieve device list (803c1787) · Commits · github.com / kvm-riscv / linux

drivers/gpu/drm/nouveau/core/core/client.c

+42 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@
		#include <core/client.h>
		#include <core/handle.h>
		#include <core/option.h>
		#include <nvif/unpack.h>
		#include <nvif/class.h>

		#include <nvif/unpack.h>
		@@ -139,6 +140,46 @@ nvkm_client_notify_new(struct nouveau_client *client,
		return 0;
		}

		static int
		nouveau_client_devlist(struct nouveau_object object, void data, u32 size)
		{
		union {
		struct nv_client_devlist_v0 v0;
		} *args = data;
		int ret;

		nv_ioctl(object, "client devlist size %d\n", size);
		if (nvif_unpack(args->v0, 0, 0, true)) {
		nv_ioctl(object, "client devlist vers %d count %d\n",
		args->v0.version, args->v0.count);
		if (size == sizeof(args->v0.device[0]) * args->v0.count) {
		ret = nouveau_device_list(args->v0.device,
		args->v0.count);
		if (ret >= 0) {
		args->v0.count = ret;
		ret = 0;
		}
		} else {
		ret = -EINVAL;
		}
		}

		return ret;
		}

		static int
		nouveau_client_mthd(struct nouveau_object *object, u32 mthd,
		void *data, u32 size)
		{
		switch (mthd) {
		case NV_CLIENT_DEVLIST:
		return nouveau_client_devlist(object, data, size);
		default:
		break;
		}
		return -EINVAL;
		}

		static void
		nouveau_client_dtor(struct nouveau_object *object)
		{
		@@ -155,6 +196,7 @@ static struct nouveau_oclass
		nouveau_client_oclass = {
		.ofuncs = &(struct nouveau_ofuncs) {
		.dtor = nouveau_client_dtor,
		.mthd = nouveau_client_mthd,
		},
		};

+14 −0

Original line number	Diff line number	Diff line
		@@ -54,6 +54,20 @@ nouveau_device_find(u64 name)
		return match;
		}

		int
		nouveau_device_list(u64 *name, int size)
		{
		struct nouveau_device *device;
		int nr = 0;
		mutex_lock(&nv_devices_mutex);
		list_for_each_entry(device, &nv_devices, head) {
		if (nr++ < size)
		name[nr - 1] = device->handle;
		}
		mutex_unlock(&nv_devices_mutex);
		return nr;
		}

		/******************************************************************************
		* nouveau_devobj (0x0080): class implementation
		*****************************************************************************/

+2 −0

Original line number	Diff line number	Diff line
		@@ -101,6 +101,8 @@ struct nouveau_device {
		} acpi;
		};

		int nouveau_device_list(u64 *name, int size);

		static inline struct nouveau_device *
		nv_device(void *obj)
		{

+14 −0