gpu: nvgpu: gv11b: fix for gfx preemption

Used chip specific attrib_cb_gfxp_default_size and
attrib_cb_gfxp_size buffer sizes during committing
global callback buffer when gfx preemption is requested.
These sizes are different for gv11b from gp10b.
For gp10b used smaller buffer sizes than specified
value in hw manuals as per sw requirement.

Also used gv11b specific preemption related functions:
gr_gv11b_set_ctxsw_preemption_mode
gr_gv11b_update_ctxsw_preemption_mode

This is required because preemption related buffer
sizes are different for gv11b from gp10b. More optimization
will be done as part of NVGPU-484.

Another issue fixed is: gpu va for preemption buffers
still needs to be 8 bit aligned, even though 49 bits
available now. This done because of legacy implementation
of fecs ucode.

Bug 1976694

Change-Id: I2dc923340d34d0dc5fe45419200d0cf4f53cdb23
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1635027
GVS: Gerrit_Virtual_Submit
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/gr_gv11b.h b/drivers/gpu/nvgpu/gv11b/gr_gv11b.h
index 39d12b3f..17e5e9e3 100644
--- a/drivers/gpu/nvgpu/gv11b/gr_gv11b.h
+++ b/drivers/gpu/nvgpu/gv11b/gr_gv11b.h
@@ -1,7 +1,7 @@
 /*
  * GV11B GPU GR
  *
- * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -46,6 +46,7 @@ struct zbc_query_params;
 struct channel_ctx_gk20a;
 struct nvgpu_warpstate;
 struct nvgpu_gr_sm_error_state;
+struct gr_ctx_desc;
 struct gr_gk20a_isr_data;
 struct gk20a_debug_output;
 
@@ -218,4 +219,14 @@ void gr_gv11b_init_gfxp_wfi_timeout_count(struct gk20a *g);
 unsigned long gr_gv11b_get_max_gfxp_wfi_timeout_count(struct gk20a *g);
 void gr_gv11b_ecc_init_scrub_reg(struct gk20a *g);
 
+int gr_gv11b_set_ctxsw_preemption_mode(struct gk20a *g,
+                                struct gr_ctx_desc *gr_ctx,
+                                struct vm_gk20a *vm, u32 class,
+                                u32 graphics_preempt_mode,
+                                u32 compute_preempt_mode);
+
+void gr_gv11b_update_ctxsw_preemption_mode(struct gk20a *g,
+                struct channel_ctx_gk20a *ch_ctx,
+                struct nvgpu_mem *mem);
+
 #endif