From: Christian König Date: Tue, 27 May 2014 18:10:28 +0000 (+0200) Subject: drm/radeon: optimize CIK VM handling v2 X-Git-Tag: firefly_0821_release~176^2~3773^2~37^2~8 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3d7938faf3d7a792c11fcd11abbffdb18dfd6ee2;p=firefly-linux-kernel-4.4.55.git drm/radeon: optimize CIK VM handling v2 Fill VM page tables from the GART page table if applicable. v2: fix copy&paste error Signed-off-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c index f7e46cf682af..3c2407bad1f0 100644 --- a/drivers/gpu/drm/radeon/cik_sdma.c +++ b/drivers/gpu/drm/radeon/cik_sdma.c @@ -741,7 +741,26 @@ void cik_sdma_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 > 0x1FFFF8) + bytes = 0x1FFFF8; + + ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_WRITE_SUB_OPCODE_LINEAR, 0); + ib->ptr[ib->length_dw++] = bytes; + ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ + ib->ptr[ib->length_dw++] = src & 0xffffffff; + ib->ptr[ib->length_dw++] = upper_32_bits(src); + ib->ptr[ib->length_dw++] = pe & 0xffffffff; + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + + pe += bytes; + src += bytes; + count -= bytes / 8; + } + } else if (flags & R600_PTE_SYSTEM) { while (count) { ndw = count * 2; if (ndw > 0xFFFFE)