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radv: Skip tiny non-visible VRAM heap. 

When I enable "Above 4G decoding" in my BIOS I still get 16 MiB of
non-visible VRAM on my 8G VRAM GPU ...

CC: mesa-stable
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6827>
This commit is contained in:
Bas Nieuwenhuizen 2020-09-23 02:13:00 +02:00
parent b7793e39ee
commit 9948ead3cd
1 changed files with 4 additions and 1 deletions
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5
src/amd/vulkan/radv_device.c
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@ -168,7 +168,10 @@ radv_physical_device_init_mem_types(struct radv_physical_device *device)
uint64_t vram_size = radv_get_vram_size(device);
int vram_index = -1, visible_vram_index = -1, gart_index = -1;
device->memory_properties.memoryHeapCount = 0;
if (vram_size > 0) {
/* Only get a VRAM heap if it is significant, not if it is a 16 MiB
* remainder above visible VRAM. */
if (vram_size > 0 && vram_size * 9 >= visible_vram_size) {
vram_index = device->memory_properties.memoryHeapCount++;
device->memory_properties.memoryHeaps[vram_index] = (VkMemoryHeap) {
.size = vram_size,