Commit 157fe68d authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: fix size calculation with stolen vga memory 



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

Acked-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent c9918d1f

drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c

+3 −0
Original line number Diff line number Diff line
@@ -499,6 +499,9 @@ 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, (unsigned)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;

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