drm/amdgpu: fix amdgpu_gmc_gart_location a little bit (0be655d1) · Commits · 戴 / test

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

+13 −15

Original line number	Diff line number	Diff line
		@@ -120,24 +120,22 @@ void amdgpu_gmc_gart_location(struct amdgpu_device adev, struct amdgpu_gmc mc)

		mc->gart_size += adev->pm.smu_prv_buffer_size;

		size_af = adev->gmc.mc_mask - mc->vram_end;
		/* VCE doesn't like it when BOs cross a 4GB segment, so align
		* the GART base on a 4GB boundary as well.
		*/
		size_bf = mc->vram_start;
		if (size_bf > size_af) {
		if (mc->gart_size > size_bf) {
		size_af = adev->gmc.mc_mask + 1 -
		ALIGN(mc->vram_end + 1, 0x100000000ULL);

		if (mc->gart_size > max(size_bf, size_af)) {
		dev_warn(adev->dev, "limiting GART\n");
		mc->gart_size = size_bf;
		mc->gart_size = max(size_bf, size_af);
		}

		if (size_bf > size_af)
		mc->gart_start = 0;
		} else {
		if (mc->gart_size > size_af) {
		dev_warn(adev->dev, "limiting GART\n");
		mc->gart_size = size_af;
		}
		/* VCE doesn't like it when BOs cross a 4GB segment, so align
		* the GART base on a 4GB boundary as well.
		*/
		else
		mc->gart_start = ALIGN(mc->vram_end + 1, 0x100000000ULL);
		}
		mc->gart_end = mc->gart_start + mc->gart_size - 1;
		dev_info(adev->dev, "GART: %lluM 0x%016llX - 0x%016llX\n",
		mc->gart_size >> 20, mc->gart_start, mc->gart_end);