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gpu: nvgpu: add supported preemptions to gpu characteristics

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Add below flag fields to gpu characteristics to indicate
supported and default preemption modes on platform for
graphics and compute

__u32 graphics_preemption_mode_flags;
__u32 compute_preemption_mode_flags;
__u32 default_graphics_preempt_mode;
__u32 default_compute_preempt_mode;

Add struct nvgpu_preemption_modes_rec to struct gr_gk20a
to store these values locally

Use platform specific get_preemption_mode_flags() to
get the flags and define gk20a/gm20b specific
get_preemption_mode_flags() API

Bug 1646259

Change-Id: I80193c0d988dc93bd96585f9aa631fd817f4dfa3
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1133595
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Deepak Nibade
2016-04-27 19:02:43 +05:30
committed by Terje Bergstrom
parent d868b65441
commit 771f742703
6 changed files with 64 additions and 0 deletions
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2
drivers/gpu/nvgpu/gk20a/gk20a.h
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@@ -257,6 +257,8 @@ struct gpu_ops {
int (*set_preemption_mode)(struct channel_gk20a *ch,
u32 graphics_preempt_mode,
u32 compute_preempt_mode);
int (*get_preemption_mode_flags)(struct gk20a *g,
struct nvgpu_preemption_modes_rec *preemption_modes_rec);
} gr;
const char *name;
struct {