Commit f3982ac1 authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/radeon: optimize SI VM handling 



Fill VM page tables from the GART page table if applicable.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 0e97703c

drivers/gpu/drm/radeon/si_dma.c

+19 −1
Original line number Diff line number Diff line
@@ -79,7 +79,25 @@ void si_dma_vm_set_page(struct radeon_device *rdev, 


	trace_radeon_vm_set_page(pe, addr, count, incr, flags);



	if (flags & R600_PTE_SYSTEM) {

	if (flags == R600_PTE_GART) {

		uint64_t src = rdev->gart.table_addr + (addr >> 12) * 8;

		while (count) {

			unsigned bytes = count * 8;

			if (bytes > 0xFFFF8)

				bytes = 0xFFFF8;



			ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_COPY,

							      1, 0, 0, bytes);

			ib->ptr[ib->length_dw++] = pe & 0xffffffff;

			ib->ptr[ib->length_dw++] = src & 0xffffffff;

			ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;

			ib->ptr[ib->length_dw++] = upper_32_bits(src) & 0xff;



			pe += bytes;

			src += bytes;

			count -= bytes / 8;

		}

	} else if (flags & R600_PTE_SYSTEM) {

		while (count) {

			ndw = count * 2;

			if (ndw > 0xFFFFE)

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