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gpu: nvgpu: add clocks control capability

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Add NVGPU_GPU_FLAGS_SUPPORT_CLOCK_CONTROLS bit to allow user library
to determine if GPU supports clock control ioctls.

Jira DNVGPU-125

Change-Id: Ia09808ed36aa85a7c520039bb336888e2b467076
Signed-off-by: David Martine Nieto <dmartineznie@nvidia.com>
Reviewed-on: http://git-master/r/1239379
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1267154
Reviewed-by: Automatic_Commit_Validation_User
This commit is contained in:
Thomas Fleury
2016-10-14 10:41:07 -07:00
committed by mobile promotions
parent a4731b3282
commit 8cfcf181f1
2 changed files with 15 additions and 2 deletions
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3
drivers/gpu/nvgpu/gk20a/gk20a.c
View File

@@ -2056,6 +2056,9 @@ int gk20a_init_gpu_characteristics(struct gk20a *g)
gpu->flags |= NVGPU_GPU_FLAGS_SUPPORT_USERSPACE_MANAGED_AS; gpu->flags |= NVGPU_GPU_FLAGS_SUPPORT_USERSPACE_MANAGED_AS;
gpu->flags |= NVGPU_GPU_FLAGS_SUPPORT_TSG; gpu->flags |= NVGPU_GPU_FLAGS_SUPPORT_TSG;
if (g->ops.clk_arb.get_arbiter_clk_domains)
gpu->flags |= NVGPU_GPU_FLAGS_SUPPORT_CLOCK_CONTROLS;
gpu->gpc_mask = (1 << g->gr.gpc_count)-1; gpu->gpc_mask = (1 << g->gr.gpc_count)-1;
g->ops.gr.detect_sm_arch(g); g->ops.gr.detect_sm_arch(g);

14
include/uapi/linux/nvgpu.h
View File

@@ -116,6 +116,16 @@ struct nvgpu_gpu_zbc_query_table_args {
#define NVGPU_GPU_FLAGS_SUPPORT_USERSPACE_MANAGED_AS (1ULL << 7) #define NVGPU_GPU_FLAGS_SUPPORT_USERSPACE_MANAGED_AS (1ULL << 7)
/* Both gpu driver and device support TSG */ /* Both gpu driver and device support TSG */
#define NVGPU_GPU_FLAGS_SUPPORT_TSG (1ULL << 8) #define NVGPU_GPU_FLAGS_SUPPORT_TSG (1ULL << 8)
/* Clock control support */
#define NVGPU_GPU_FLAGS_SUPPORT_CLOCK_CONTROLS (1ULL << 9)
/* NVGPU_GPU_IOCTL_GET_VOLTAGE is available */
#define NVGPU_GPU_FLAGS_SUPPORT_GET_VOLTAGE (1ULL << 10)
/* NVGPU_GPU_IOCTL_GET_CURRENT is available */
#define NVGPU_GPU_FLAGS_SUPPORT_GET_CURRENT (1ULL << 11)
/* NVGPU_GPU_IOCTL_GET_POWER is available */
#define NVGPU_GPU_FLAGS_SUPPORT_GET_POWER (1ULL << 12)
/* NVGPU_GPU_IOCTL_GET_TEMPERATURE is available */
#define NVGPU_GPU_FLAGS_SUPPORT_GET_TEMPERATURE (1ULL << 13)
struct nvgpu_gpu_characteristics { struct nvgpu_gpu_characteristics {
__u32 arch; __u32 arch;
@@ -671,7 +681,7 @@ struct nvgpu_gpu_clk_set_info_args {
this file descriptor to determine when the request has completed. this file descriptor to determine when the request has completed.
The fd must be closed afterwards. The fd must be closed afterwards.
*/ */
int completion_fd; __s32 completion_fd;
}; };
struct nvgpu_gpu_clk_get_event_fd_args { struct nvgpu_gpu_clk_get_event_fd_args {
@@ -680,7 +690,7 @@ struct nvgpu_gpu_clk_get_event_fd_args {
__u32 flags; __u32 flags;
/* out: File descriptor for events, i.e. any clock update. */ /* out: File descriptor for events, i.e. any clock update. */
int event_fd; __s32 event_fd;
}; };
struct nvgpu_gpu_get_memory_state_args { struct nvgpu_gpu_get_memory_state_args {