diff options
author | Lakshmanan M <lm@nvidia.com> | 2016-07-28 07:23:31 -0400 |
---|---|---|
committer | Deepak Nibade <dnibade@nvidia.com> | 2016-12-27 04:56:18 -0500 |
commit | cae5d380d8b465f4d1389ae80d6cec1458951e29 (patch) | |
tree | 702e29a4ea43698a0ca4007565bb06051052ec5f /drivers/gpu/nvgpu/gp106 | |
parent | 436109f46d49a24b69bab7c85b112f192ab002c0 (diff) |
gpu: nvgpu: Add preemption mode support for gp10x
Added preemption mode (WFI, GFXP, CTA and CILP) support for gp10x
family gr class (PASCAL_B and PASCAL_COMPUTE_B).
Bug 200221149
Change-Id: Ia8b781c5baedba660db5997f190a0b363286ed7f
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: http://git-master/r/1193209
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gp106')
-rw-r--r-- | drivers/gpu/nvgpu/gp106/gr_gp106.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gp106/gr_gp106.c b/drivers/gpu/nvgpu/gp106/gr_gp106.c index 9d6ce6ec..01d06975 100644 --- a/drivers/gpu/nvgpu/gp106/gr_gp106.c +++ b/drivers/gpu/nvgpu/gp106/gr_gp106.c | |||
@@ -102,6 +102,123 @@ static void gr_gp106_cb_size_default(struct gk20a *g) | |||
102 | gr_gpc0_ppc0_cbm_alpha_cb_size_v_default_v(); | 102 | gr_gpc0_ppc0_cbm_alpha_cb_size_v_default_v(); |
103 | } | 103 | } |
104 | 104 | ||
105 | static int gr_gp106_set_ctxsw_preemption_mode(struct gk20a *g, | ||
106 | struct gr_ctx_desc *gr_ctx, | ||
107 | struct vm_gk20a *vm, u32 class, | ||
108 | u32 graphics_preempt_mode, | ||
109 | u32 compute_preempt_mode) | ||
110 | { | ||
111 | int err = 0; | ||
112 | |||
113 | if (class == PASCAL_B && g->gr.t18x.ctx_vars.force_preemption_gfxp) | ||
114 | graphics_preempt_mode = NVGPU_GRAPHICS_PREEMPTION_MODE_GFXP; | ||
115 | |||
116 | if (class == PASCAL_COMPUTE_B && | ||
117 | g->gr.t18x.ctx_vars.force_preemption_cilp) | ||
118 | compute_preempt_mode = NVGPU_COMPUTE_PREEMPTION_MODE_CILP; | ||
119 | |||
120 | /* check for invalid combinations */ | ||
121 | if ((graphics_preempt_mode == 0) && (compute_preempt_mode == 0)) | ||
122 | return -EINVAL; | ||
123 | |||
124 | if ((graphics_preempt_mode == NVGPU_GRAPHICS_PREEMPTION_MODE_GFXP) && | ||
125 | (compute_preempt_mode == NVGPU_COMPUTE_PREEMPTION_MODE_CILP)) | ||
126 | return -EINVAL; | ||
127 | |||
128 | /* set preemption modes */ | ||
129 | switch (graphics_preempt_mode) { | ||
130 | case NVGPU_GRAPHICS_PREEMPTION_MODE_GFXP: | ||
131 | { | ||
132 | u32 spill_size = | ||
133 | gr_gpc0_swdx_rm_spill_buffer_size_256b_default_v() * | ||
134 | gr_gpc0_swdx_rm_spill_buffer_size_256b_byte_granularity_v(); | ||
135 | u32 pagepool_size = g->ops.gr.pagepool_default_size(g) * | ||
136 | gr_scc_pagepool_total_pages_byte_granularity_v(); | ||
137 | u32 betacb_size = g->gr.attrib_cb_default_size + | ||
138 | (gr_gpc0_ppc0_cbm_beta_cb_size_v_gfxp_v() - | ||
139 | gr_gpc0_ppc0_cbm_beta_cb_size_v_default_v()); | ||
140 | u32 attrib_cb_size = (betacb_size + g->gr.alpha_cb_size) * | ||
141 | gr_gpc0_ppc0_cbm_beta_cb_size_v_granularity_v() * | ||
142 | g->gr.max_tpc_count; | ||
143 | attrib_cb_size = ALIGN(attrib_cb_size, 128); | ||
144 | |||
145 | gk20a_dbg_info("gfxp context spill_size=%d", spill_size); | ||
146 | gk20a_dbg_info("gfxp context pagepool_size=%d", pagepool_size); | ||
147 | gk20a_dbg_info("gfxp context attrib_cb_size=%d", | ||
148 | attrib_cb_size); | ||
149 | |||
150 | err = gr_gp10b_alloc_buffer(vm, | ||
151 | g->gr.t18x.ctx_vars.preempt_image_size, | ||
152 | &gr_ctx->t18x.preempt_ctxsw_buffer); | ||
153 | if (err) { | ||
154 | gk20a_err(dev_from_gk20a(g), | ||
155 | "cannot allocate preempt buffer"); | ||
156 | goto fail; | ||
157 | } | ||
158 | |||
159 | err = gr_gp10b_alloc_buffer(vm, | ||
160 | spill_size, | ||
161 | &gr_ctx->t18x.spill_ctxsw_buffer); | ||
162 | if (err) { | ||
163 | gk20a_err(dev_from_gk20a(g), | ||
164 | "cannot allocate spill buffer"); | ||
165 | goto fail_free_preempt; | ||
166 | } | ||
167 | |||
168 | err = gr_gp10b_alloc_buffer(vm, | ||
169 | attrib_cb_size, | ||
170 | &gr_ctx->t18x.betacb_ctxsw_buffer); | ||
171 | if (err) { | ||
172 | gk20a_err(dev_from_gk20a(g), | ||
173 | "cannot allocate beta buffer"); | ||
174 | goto fail_free_spill; | ||
175 | } | ||
176 | |||
177 | err = gr_gp10b_alloc_buffer(vm, | ||
178 | pagepool_size, | ||
179 | &gr_ctx->t18x.pagepool_ctxsw_buffer); | ||
180 | if (err) { | ||
181 | gk20a_err(dev_from_gk20a(g), | ||
182 | "cannot allocate page pool"); | ||
183 | goto fail_free_betacb; | ||
184 | } | ||
185 | |||
186 | gr_ctx->graphics_preempt_mode = graphics_preempt_mode; | ||
187 | break; | ||
188 | } | ||
189 | |||
190 | case NVGPU_GRAPHICS_PREEMPTION_MODE_WFI: | ||
191 | gr_ctx->graphics_preempt_mode = graphics_preempt_mode; | ||
192 | break; | ||
193 | |||
194 | default: | ||
195 | break; | ||
196 | } | ||
197 | |||
198 | if (class == PASCAL_COMPUTE_B) { | ||
199 | switch (compute_preempt_mode) { | ||
200 | case NVGPU_COMPUTE_PREEMPTION_MODE_WFI: | ||
201 | case NVGPU_COMPUTE_PREEMPTION_MODE_CTA: | ||
202 | case NVGPU_COMPUTE_PREEMPTION_MODE_CILP: | ||
203 | gr_ctx->compute_preempt_mode = compute_preempt_mode; | ||
204 | break; | ||
205 | default: | ||
206 | break; | ||
207 | } | ||
208 | } | ||
209 | |||
210 | return 0; | ||
211 | |||
212 | fail_free_betacb: | ||
213 | gk20a_gmmu_unmap_free(vm, &gr_ctx->t18x.betacb_ctxsw_buffer); | ||
214 | fail_free_spill: | ||
215 | gk20a_gmmu_unmap_free(vm, &gr_ctx->t18x.spill_ctxsw_buffer); | ||
216 | fail_free_preempt: | ||
217 | gk20a_gmmu_unmap_free(vm, &gr_ctx->t18x.preempt_ctxsw_buffer); | ||
218 | fail: | ||
219 | return err; | ||
220 | } | ||
221 | |||
105 | void gp106_init_gr(struct gpu_ops *gops) | 222 | void gp106_init_gr(struct gpu_ops *gops) |
106 | { | 223 | { |
107 | gp10b_init_gr(gops); | 224 | gp10b_init_gr(gops); |
@@ -110,4 +227,5 @@ void gp106_init_gr(struct gpu_ops *gops) | |||
110 | gops->gr.handle_sw_method = gr_gp106_handle_sw_method; | 227 | gops->gr.handle_sw_method = gr_gp106_handle_sw_method; |
111 | gops->gr.cb_size_default = gr_gp106_cb_size_default; | 228 | gops->gr.cb_size_default = gr_gp106_cb_size_default; |
112 | gops->gr.init_preemption_state = NULL; | 229 | gops->gr.init_preemption_state = NULL; |
230 | gops->gr.set_ctxsw_preemption_mode = gr_gp106_set_ctxsw_preemption_mode; | ||
113 | } | 231 | } |