[PATCH 4/7] drm/amdgpu: user reserved zfb to init vram base offset and size
Alex Deucher
alexdeucher at gmail.com
Tue May 15 14:50:05 UTC 2018
From: Feifei Xu <Feifei.Xu at amd.com>
Signed-off-by: Feifei Xu <Feifei.Xu at amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
Acked-by: John Bridgman <john.bridgman at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 27 +++++++++++++++++++++------
1 file changed, 21 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 734306902e4e..65aa28f14153 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -693,7 +693,10 @@ static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
amdgpu_device_vram_location(adev, &adev->gmc, base);
amdgpu_device_gart_location(adev, mc);
/* base offset of vram pages */
- adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
+ if (adev->gmc.zfb_size > 0)
+ adev->vm_manager.vram_base_offset = adev->gmc.zfb_phys_addr;
+ else
+ adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
}
/**
@@ -724,8 +727,11 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
}
/* size in MB on si */
- adev->gmc.mc_vram_size =
- adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL;
+ if (adev->gmc.zfb_size > 0)
+ adev->gmc.mc_vram_size = adev->gmc.zfb_size;
+ else
+ adev->gmc.mc_vram_size =
+ adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL;
adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
if (!(adev->flags & AMD_IS_APU)) {
@@ -733,12 +739,21 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
if (r)
return r;
}
- adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
- adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
+
+ if (adev->gmc.zfb_size > 0) {
+ adev->gmc.aper_base = adev->gmc.zfb_phys_addr;
+ adev->gmc.aper_size = adev->gmc.zfb_size;
+ } else {
+ adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
+ adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
+ }
#ifdef CONFIG_X86_64
if (adev->flags & AMD_IS_APU) {
- adev->gmc.aper_base = gfxhub_v1_0_get_mc_fb_offset(adev);
+ if (adev->gmc.zfb_size > 0)
+ adev->gmc.aper_base = adev->gmc.zfb_phys_addr;
+ else
+ adev->gmc.aper_base = gfxhub_v1_0_get_mc_fb_offset(adev);
adev->gmc.aper_size = adev->gmc.real_vram_size;
}
#endif
--
2.13.6
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