diff options
author | Deepak Nibade <dnibade@nvidia.com> | 2016-04-27 09:32:43 -0400 |
---|---|---|
committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2016-05-09 16:16:53 -0400 |
commit | 771f742703bb56598bc341ec4eaee5ff7c036d4d (patch) | |
tree | a74d32db43c4fe87ee6d55a587a8f6de12490bbf /drivers/gpu/nvgpu/gk20a | |
parent | d868b654419cfa096f563c9281a2a5cc067c23db (diff) |
gpu: nvgpu: add supported preemptions to gpu characteristics
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>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/gk20a.c | 11 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/gk20a.h | 2 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/gr_gk20a.c | 17 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/gr_gk20a.h | 9 |
4 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c index 4283e1ad..c07e7e4b 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/gk20a.c | |||
@@ -2142,6 +2142,17 @@ int gk20a_init_gpu_characteristics(struct gk20a *g) | |||
2142 | if (platform->clk_round_rate) | 2142 | if (platform->clk_round_rate) |
2143 | gpu->max_freq = platform->clk_round_rate(g->dev, UINT_MAX); | 2143 | gpu->max_freq = platform->clk_round_rate(g->dev, UINT_MAX); |
2144 | 2144 | ||
2145 | g->ops.gr.get_preemption_mode_flags(g, &g->gr.preemption_mode_rec); | ||
2146 | gpu->graphics_preemption_mode_flags = | ||
2147 | g->gr.preemption_mode_rec.graphics_preemption_mode_flags; | ||
2148 | gpu->compute_preemption_mode_flags = | ||
2149 | g->gr.preemption_mode_rec.compute_preemption_mode_flags; | ||
2150 | gpu->default_graphics_preempt_mode = | ||
2151 | g->gr.preemption_mode_rec.default_graphics_preempt_mode; | ||
2152 | gpu->default_compute_preempt_mode = | ||
2153 | g->gr.preemption_mode_rec.default_compute_preempt_mode; | ||
2154 | |||
2155 | |||
2145 | return 0; | 2156 | return 0; |
2146 | } | 2157 | } |
2147 | 2158 | ||
diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h index 64e410db..09198fa5 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/gk20a.h | |||
@@ -257,6 +257,8 @@ struct gpu_ops { | |||
257 | int (*set_preemption_mode)(struct channel_gk20a *ch, | 257 | int (*set_preemption_mode)(struct channel_gk20a *ch, |
258 | u32 graphics_preempt_mode, | 258 | u32 graphics_preempt_mode, |
259 | u32 compute_preempt_mode); | 259 | u32 compute_preempt_mode); |
260 | int (*get_preemption_mode_flags)(struct gk20a *g, | ||
261 | struct nvgpu_preemption_modes_rec *preemption_modes_rec); | ||
260 | } gr; | 262 | } gr; |
261 | const char *name; | 263 | const char *name; |
262 | struct { | 264 | struct { |
diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c index aa63e559..8b645cc2 100644 --- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c | |||
@@ -8659,6 +8659,22 @@ clean_up: | |||
8659 | return err; | 8659 | return err; |
8660 | } | 8660 | } |
8661 | 8661 | ||
8662 | static int gr_gk20a_get_preemption_mode_flags(struct gk20a *g, | ||
8663 | struct nvgpu_preemption_modes_rec *preemption_modes_rec) | ||
8664 | { | ||
8665 | preemption_modes_rec->graphics_preemption_mode_flags = | ||
8666 | NVGPU_GRAPHICS_PREEMPTION_MODE_WFI; | ||
8667 | preemption_modes_rec->compute_preemption_mode_flags = | ||
8668 | NVGPU_COMPUTE_PREEMPTION_MODE_WFI; | ||
8669 | |||
8670 | preemption_modes_rec->default_graphics_preempt_mode = | ||
8671 | NVGPU_GRAPHICS_PREEMPTION_MODE_WFI; | ||
8672 | preemption_modes_rec->default_compute_preempt_mode = | ||
8673 | NVGPU_COMPUTE_PREEMPTION_MODE_WFI; | ||
8674 | |||
8675 | return 0; | ||
8676 | } | ||
8677 | |||
8662 | void gk20a_init_gr_ops(struct gpu_ops *gops) | 8678 | void gk20a_init_gr_ops(struct gpu_ops *gops) |
8663 | { | 8679 | { |
8664 | gops->gr.access_smpc_reg = gr_gk20a_access_smpc_reg; | 8680 | gops->gr.access_smpc_reg = gr_gk20a_access_smpc_reg; |
@@ -8726,4 +8742,5 @@ void gk20a_init_gr_ops(struct gpu_ops *gops) | |||
8726 | gops->gr.update_sm_error_state = gk20a_gr_update_sm_error_state; | 8742 | gops->gr.update_sm_error_state = gk20a_gr_update_sm_error_state; |
8727 | gops->gr.clear_sm_error_state = gk20a_gr_clear_sm_error_state; | 8743 | gops->gr.clear_sm_error_state = gk20a_gr_clear_sm_error_state; |
8728 | gops->gr.suspend_contexts = gr_gk20a_suspend_contexts; | 8744 | gops->gr.suspend_contexts = gr_gk20a_suspend_contexts; |
8745 | gops->gr.get_preemption_mode_flags = gr_gk20a_get_preemption_mode_flags; | ||
8729 | } | 8746 | } |
diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h index 10997c17..15d1ea7d 100644 --- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h | |||
@@ -188,6 +188,14 @@ struct gr_gk20a_isr_data { | |||
188 | u32 class_num; | 188 | u32 class_num; |
189 | }; | 189 | }; |
190 | 190 | ||
191 | struct nvgpu_preemption_modes_rec { | ||
192 | u32 graphics_preemption_mode_flags; /* supported preemption modes */ | ||
193 | u32 compute_preemption_mode_flags; /* supported preemption modes */ | ||
194 | |||
195 | u32 default_graphics_preempt_mode; /* default mode */ | ||
196 | u32 default_compute_preempt_mode; /* default mode */ | ||
197 | }; | ||
198 | |||
191 | struct gr_gk20a { | 199 | struct gr_gk20a { |
192 | struct gk20a *g; | 200 | struct gk20a *g; |
193 | struct { | 201 | struct { |
@@ -325,6 +333,7 @@ struct gr_gk20a { | |||
325 | bool sw_ready; | 333 | bool sw_ready; |
326 | bool skip_ucode_init; | 334 | bool skip_ucode_init; |
327 | 335 | ||
336 | struct nvgpu_preemption_modes_rec preemption_mode_rec; | ||
328 | #ifdef CONFIG_ARCH_TEGRA_18x_SOC | 337 | #ifdef CONFIG_ARCH_TEGRA_18x_SOC |
329 | struct gr_t18x t18x; | 338 | struct gr_t18x t18x; |
330 | #endif | 339 | #endif |