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gpu: nvgpu: Move FB size query to FB

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Vidmem size query was in mm_xxx.c. It involves reading a register from
FB, so move the query to FB HAL.

JIRA NVGPU-1063

Change-Id: I30dfd2c4fdcdd6c841f85aaab7431d52473759bd
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1801425
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Terje Bergstrom
2018-08-16 15:00:07 -07:00
committed by mobile promotions
parent a02e1c1f0b
commit 83efad7adb
14 changed files with 40 additions and 105 deletions
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15
drivers/gpu/nvgpu/common/fb/fb_gv100.c
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@@ -281,3 +281,18 @@ int gv100_fb_enable_nvlink(struct gk20a *g)
return 0;
}
size_t gv100_fb_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 / 16U * 15U;
}
return bytes;
}