FAILED: patch "[PATCH] drm/amdgpu: fix size calculation with stolen vga memory" failed to apply to 5.9-stable tree

The patch below does not apply to the 5.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 157fe68d74c2ad2db438c91af9ed3d3a51de4ed7 Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Mon, 7 Dec 2020 13:12:29 -0500
Subject: [PATCH] drm/amdgpu: fix size calculation with stolen vga memory
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If we need to keep the stolen vga memory, make sure it is at least as big as the legacy vga size.

index 36604d751d62..3e4892b7b7d3 100644
@@ -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;