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/*
* GP106 memory management
*
* Copyright (c) 2016-2017, 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 "gp10b/mm_gp10b.h"
#include "gp106/mm_gp106.h"
#include <nvgpu/hw/gp106/hw_fb_gp106.h>
size_t gp106_mm_get_vidmem_size(struct gk20a *g)
{
u32 range = gk20a_readl(g, fb_mmu_local_memory_range_r());
u32 mag = fb_mmu_local_memory_range_lower_mag_v(range);
u32 scale = fb_mmu_local_memory_range_lower_scale_v(range);
u32 ecc = fb_mmu_local_memory_range_ecc_mode_v(range);
size_t bytes = ((size_t)mag << scale) * SZ_1M;
if (ecc)
bytes = bytes / 16 * 15;
return bytes;
}
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