Files
linux-nvgpu/drivers/gpu/nvgpu/gm206/mm_gm206.c
Thomas Fleury f6ebdc5f29 gpu: nvgpu: unset get_phys_addr_bits for dGPU
Unset get_phys_addr_bits as PCIe devices do not need
to care if SMMU is enabled or not.

Jira VFND-1965

Change-Id: I358834863fb365092904da219be80d764f6af8ec
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1183089
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
2016-07-19 23:48:40 -07:00

38 lines
1.1 KiB
C

/*
* GM206 memory management
*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include "gk20a/gk20a.h"
#include "gm20b/mm_gm20b.h"
#include "gm206/mm_gm206.h"
#include "hw_fbpa_gm206.h"
#include "hw_top_gm206.h"
static size_t gm206_mm_get_vidmem_size(struct gk20a *g)
{
u32 fbpas = top_num_fbpas_value_v(
gk20a_readl(g, top_num_fbpas_r()));
u32 ram = fbpa_cstatus_ramamount_v(
gk20a_readl(g, fbpa_cstatus_r()));
return (size_t)fbpas * ram * SZ_1M;
}
void gm206_init_mm(struct gpu_ops *gops)
{
gm20b_init_mm(gops);
gops->mm.get_vidmem_size = gm206_mm_get_vidmem_size;
gops->mm.get_physical_addr_bits = NULL;
}