If we need to keep the stolen vga memory, make sure it is
at least as big as the legacy vga size.

Signed-off-by: Alex Deucher <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index ff3afc82e73a..02c2a0d5b36e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -501,6 +501,9 @@ void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device 
*adev)
        else
                size = amdgpu_gmc_get_vbios_fb_size(adev);
 
+       if (adev->mman.keep_stolen_vga_memory)
+               size = max(size, AMDGPU_VBIOS_VGA_ALLOCATION);
+
        /* set to 0 if the pre-OS buffer uses up most of vram */
        if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
                size = 0;
-- 
2.25.4

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