linux/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
Alexandre Courbot b1c39d801a drm/nouveau/gm20b: add dummy PMU device
Add a dummy PMU device so the PMU falcon is instanciated and can be used
by secure boot.

We could reuse gk20a's implementation here, but it would fight with
secboot over PMU falcon's ownership and secboot will reset the PMU,
preventing it from operating afterwards. Proper handout between secboot
and pmu is coming along with the actual gm20b PMU implementation, so
use this as a temporary solution.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17 15:14:31 +10:00

56 lines
1.9 KiB
C

#ifndef __NVKM_PMU_H__
#define __NVKM_PMU_H__
#include <core/subdev.h>
#include <engine/falcon.h>
struct nvkm_pmu {
const struct nvkm_pmu_func *func;
struct nvkm_subdev subdev;
struct nvkm_falcon *falcon;
struct {
u32 base;
u32 size;
} send;
struct {
u32 base;
u32 size;
struct work_struct work;
wait_queue_head_t wait;
u32 process;
u32 message;
u32 data[2];
} recv;
};
int nvkm_pmu_send(struct nvkm_pmu *, u32 reply[2], u32 process,
u32 message, u32 data0, u32 data1);
void nvkm_pmu_pgob(struct nvkm_pmu *, bool enable);
int gt215_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gf100_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gf119_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gk104_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gk110_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gk208_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gk20a_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gm107_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gm20b_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gp100_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
int gp102_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **);
/* interface to MEMX process running on PMU */
struct nvkm_memx;
int nvkm_memx_init(struct nvkm_pmu *, struct nvkm_memx **);
int nvkm_memx_fini(struct nvkm_memx **, bool exec);
void nvkm_memx_wr32(struct nvkm_memx *, u32 addr, u32 data);
void nvkm_memx_wait(struct nvkm_memx *, u32 addr, u32 mask, u32 data, u32 nsec);
void nvkm_memx_nsec(struct nvkm_memx *, u32 nsec);
void nvkm_memx_wait_vblank(struct nvkm_memx *);
void nvkm_memx_train(struct nvkm_memx *);
int nvkm_memx_train_result(struct nvkm_pmu *, u32 *, int);
void nvkm_memx_block(struct nvkm_memx *);
void nvkm_memx_unblock(struct nvkm_memx *);
#endif