nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-24 10:34:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: Add quantization to slave VF Points

Browse Source 
All slave clock should be quantized as per step size.
TU104 has 15Mhz as step size.
Enable clk_arb without enabling clk_freq_controller.
clk_freq_controller is not needed for Auto use case.
Increase the maxclk only when master is less that slave clock.
This is needed when gpcclk is less than slave P0 min.
Use get_status to get Vim and use it for change sequencer.
Add support for Device Events

Bug 200454682
Bug 2481917

Change-Id: Ie0c404f4b77e41f6a1719b52d6e29a5ac757b41b
Signed-off-by: Abdul Salam <absalam@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1994831
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vaikundanathan S <vaikuns@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Abdul Salam
2019-01-17 16:24:56 +05:30
committed by mobile promotions
parent 33e9d08610
commit c57cf00aa0
5 changed files with 41 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/nvgpu/common/pmu/clk/clk_prog.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2018, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2016-2019, 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"),
@@ -1764,6 +1764,8 @@ static int getslaveclk_prog_1x_master(struct gk20a *g,
return -EINVAL;
}
*pclkmhz = (masterclkmhz * pslaveents->ratio)/100U;
/* Floor/Quantize all the slave clocks to the multiple of step size*/
*pclkmhz = (*pclkmhz / FREQ_STEP_SIZE_MHZ) * FREQ_STEP_SIZE_MHZ;
} else {
/* only support ratio for now */
return -EINVAL;