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authorDave Airlie <airlied@redhat.com>2013-09-02 09:31:40 +1000
committerDave Airlie <airlied@redhat.com>2013-09-02 09:31:40 +1000
commit9c725e5bcdae59d5383d4aec33a34c822582dda5 (patch)
tree3d55827f5f44f16cb0aada2713029f7490f557d4 /drivers/gpu/drm/radeon/rv770_dma.c
parentefa27f9cec09518c9b574e3ab4a0a41717237429 (diff)
parent679fe80fbe964ea7f9f71781c2ca65b630949da3 (diff)
downloadlinux-stable-9c725e5bcdae59d5383d4aec33a34c822582dda5.tar.gz
Merge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-next
Alex writes: This is the radeon drm-next request. Big changes include: - support for dpm on CIK parts - support for ASPM on CIK parts - support for berlin GPUs - major ring handling cleanup - remove the old 3D blit code for bo moves in favor of CP DMA or sDMA - lots of bug fixes [airlied: fix up a bunch of conflicts from drm_order removal] * 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux: (898 commits) drm/radeon/dpm: make sure dc performance level limits are valid (CI) drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2) drm/radeon: gcc fixes for extended dpm tables drm/radeon: gcc fixes for kb/kv dpm drm/radeon: gcc fixes for ci dpm drm/radeon: gcc fixes for si dpm drm/radeon: gcc fixes for ni dpm drm/radeon: gcc fixes for trinity dpm drm/radeon: gcc fixes for sumo dpm drm/radeonn: gcc fixes for rv7xx/eg/btc dpm drm/radeon: gcc fixes for rv6xx dpm drm/radeon: gcc fixes for radeon_atombios.c drm/radeon: enable UVD interrupts on CIK drm/radeon: fix init ordering for r600+ drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume radeon kms: fix uninitialised hotplug work usage in r100_irq_process() drm/radeon/audio: set up the sads on DCE3.2 asics drm/radeon: fix handling of variable sized arrays for router objects ... Conflicts: drivers/gpu/drm/i915/i915_dma.c drivers/gpu/drm/i915/i915_gem_dmabuf.c drivers/gpu/drm/i915/intel_pm.c drivers/gpu/drm/radeon/cik.c drivers/gpu/drm/radeon/ni.c drivers/gpu/drm/radeon/r600.c
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770_dma.c')
-rw-r--r--drivers/gpu/drm/radeon/rv770_dma.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rv770_dma.c b/drivers/gpu/drm/radeon/rv770_dma.c
new file mode 100644
index 000000000000..f9b02e3d6830
--- /dev/null
+++ b/drivers/gpu/drm/radeon/rv770_dma.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2013 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Alex Deucher
+ */
+#include <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "rv770d.h"
+
+/**
+ * rv770_copy_dma - copy pages using the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @num_gpu_pages: number of GPU pages to xfer
+ * @fence: radeon fence object
+ *
+ * Copy GPU paging using the DMA engine (r7xx).
+ * Used by the radeon ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+int rv770_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct radeon_fence **fence)
+{
+ struct radeon_semaphore *sem = NULL;
+ int ring_index = rdev->asic->copy.dma_ring_index;
+ struct radeon_ring *ring = &rdev->ring[ring_index];
+ u32 size_in_dw, cur_size_in_dw;
+ int i, num_loops;
+ int r = 0;
+
+ r = radeon_semaphore_create(rdev, &sem);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+
+ size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
+ num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFF);
+ r = radeon_ring_lock(rdev, ring, num_loops * 5 + 8);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ radeon_semaphore_free(rdev, &sem, NULL);
+ return r;
+ }
+
+ if (radeon_fence_need_sync(*fence, ring->idx)) {
+ radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
+ ring->idx);
+ radeon_fence_note_sync(*fence, ring->idx);
+ } else {
+ radeon_semaphore_free(rdev, &sem, NULL);
+ }
+
+ for (i = 0; i < num_loops; i++) {
+ cur_size_in_dw = size_in_dw;
+ if (cur_size_in_dw > 0xFFFF)
+ cur_size_in_dw = 0xFFFF;
+ size_in_dw -= cur_size_in_dw;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
+ radeon_ring_write(ring, dst_offset & 0xfffffffc);
+ radeon_ring_write(ring, src_offset & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
+ radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
+ src_offset += cur_size_in_dw * 4;
+ dst_offset += cur_size_in_dw * 4;
+ }
+
+ r = radeon_fence_emit(rdev, fence, ring->idx);
+ if (r) {
+ radeon_ring_unlock_undo(rdev, ring);
+ return r;
+ }
+
+ radeon_ring_unlock_commit(rdev, ring);
+ radeon_semaphore_free(rdev, &sem, *fence);
+
+ return r;
+}