WebSVN – Kolibri OS – Diff – /drivers/video/drm/radeon/rv770_dma.c


/*
 * 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 
#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
 * @resv: reservation object to sync to
 *
 * Copy GPU paging using the DMA engine (r7xx).
 * Used by the radeon ttm implementation to move pages if
 * registered as the asic copy callback.
 */
struct radeon_fence *rv770_copy_dma(struct radeon_device *rdev,
		  uint64_t src_offset, uint64_t dst_offset,
		  unsigned num_gpu_pages,
				    struct reservation_object *resv)
{
	struct radeon_fence *fence;
	struct radeon_sync sync;
	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;
 
 
 
 
 
	radeon_sync_create(&sync);
 
	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_sync_free(rdev, &sync, NULL);
		return ERR_PTR(r);
	}
 
	radeon_sync_resv(rdev, &sync, resv, false);
	radeon_sync_rings(rdev, &sync, ring->idx);
 
	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);
		radeon_sync_free(rdev, &sync, NULL);
		return ERR_PTR(r);
	}
 
	radeon_ring_unlock_commit(rdev, ring, false);
	radeon_sync_free(rdev, &sync, fence);
 
	return fence;
}

Rev 5078	Rev 5271
1	/*	1	/*
2	* Copyright 2013 Advanced Micro Devices, Inc.	2	* Copyright 2013 Advanced Micro Devices, Inc.
3	*	3	*
4	* Permission is hereby granted, free of charge, to any person obtaining a	4	* Permission is hereby granted, free of charge, to any person obtaining a
5	* copy of this software and associated documentation files (the "Software"),	5	* copy of this software and associated documentation files (the "Software"),
6	* to deal in the Software without restriction, including without limitation	6	* to deal in the Software without restriction, including without limitation
7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
8	* and/or sell copies of the Software, and to permit persons to whom the	8	* and/or sell copies of the Software, and to permit persons to whom the
9	* Software is furnished to do so, subject to the following conditions:	9	* Software is furnished to do so, subject to the following conditions:
10	*	10	*
11	* The above copyright notice and this permission notice shall be included in	11	* The above copyright notice and this permission notice shall be included in
12	* all copies or substantial portions of the Software.	12	* all copies or substantial portions of the Software.
13	*	13	*
14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20	* OTHER DEALINGS IN THE SOFTWARE.	20	* OTHER DEALINGS IN THE SOFTWARE.
21	*	21	*
22	* Authors: Alex Deucher	22	* Authors: Alex Deucher
23	*/	23	*/
24	#include	24	#include
25	#include "radeon.h"	25	#include "radeon.h"
26	#include "radeon_asic.h"	26	#include "radeon_asic.h"
27	#include "rv770d.h"	27	#include "rv770d.h"
28		28
29	/**	29	/**
30	* rv770_copy_dma - copy pages using the DMA engine	30	* rv770_copy_dma - copy pages using the DMA engine
31	*	31	*
32	* @rdev: radeon_device pointer	32	* @rdev: radeon_device pointer
33	* @src_offset: src GPU address	33	* @src_offset: src GPU address
34	* @dst_offset: dst GPU address	34	* @dst_offset: dst GPU address
35	* @num_gpu_pages: number of GPU pages to xfer	35	* @num_gpu_pages: number of GPU pages to xfer
36	* @fence: radeon fence object	36	* @resv: reservation object to sync to
37	*	37	*
38	* Copy GPU paging using the DMA engine (r7xx).	38	* Copy GPU paging using the DMA engine (r7xx).
39	* Used by the radeon ttm implementation to move pages if	39	* Used by the radeon ttm implementation to move pages if
40	* registered as the asic copy callback.	40	* registered as the asic copy callback.
41	*/	41	*/
42	int rv770_copy_dma(struct radeon_device *rdev,	42	struct radeon_fence rv770_copy_dma(struct radeon_device rdev,
43	uint64_t src_offset, uint64_t dst_offset,	43	uint64_t src_offset, uint64_t dst_offset,
44	unsigned num_gpu_pages,	44	unsigned num_gpu_pages,
45	struct radeon_fence **fence)	45	struct reservation_object *resv)
46	{	46	{
47	struct radeon_semaphore *sem = NULL;	47	struct radeon_fence *fence;
-		48	struct radeon_sync sync;
48	int ring_index = rdev->asic->copy.dma_ring_index;	49	int ring_index = rdev->asic->copy.dma_ring_index;
49	struct radeon_ring *ring = &rdev->ring[ring_index];	50	struct radeon_ring *ring = &rdev->ring[ring_index];
50	u32 size_in_dw, cur_size_in_dw;	51	u32 size_in_dw, cur_size_in_dw;
51	int i, num_loops;	52	int i, num_loops;
52	int r = 0;	53	int r = 0;
53		54
54	r = radeon_semaphore_create(rdev, &sem);	-
55	if (r) {	-
56	DRM_ERROR("radeon: moving bo (%d).\n", r);	-
57	return r;	-
58	}	55	radeon_sync_create(&sync);
59		56
60	size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;	57	size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
61	num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFF);	58	num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFF);
62	r = radeon_ring_lock(rdev, ring, num_loops * 5 + 8);	59	r = radeon_ring_lock(rdev, ring, num_loops * 5 + 8);
63	if (r) {	60	if (r) {
64	DRM_ERROR("radeon: moving bo (%d).\n", r);	61	DRM_ERROR("radeon: moving bo (%d).\n", r);
65	radeon_semaphore_free(rdev, &sem, NULL);	62	radeon_sync_free(rdev, &sync, NULL);
66	return r;	63	return ERR_PTR(r);
67	}	64	}
68		65
69	radeon_semaphore_sync_to(sem, *fence);	66	radeon_sync_resv(rdev, &sync, resv, false);
70	radeon_semaphore_sync_rings(rdev, sem, ring->idx);	67	radeon_sync_rings(rdev, &sync, ring->idx);
71		68
72	for (i = 0; i < num_loops; i++) {	69	for (i = 0; i < num_loops; i++) {
73	cur_size_in_dw = size_in_dw;	70	cur_size_in_dw = size_in_dw;
74	if (cur_size_in_dw > 0xFFFF)	71	if (cur_size_in_dw > 0xFFFF)
75	cur_size_in_dw = 0xFFFF;	72	cur_size_in_dw = 0xFFFF;
76	size_in_dw -= cur_size_in_dw;	73	size_in_dw -= cur_size_in_dw;
77	radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));	74	radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
78	radeon_ring_write(ring, dst_offset & 0xfffffffc);	75	radeon_ring_write(ring, dst_offset & 0xfffffffc);
79	radeon_ring_write(ring, src_offset & 0xfffffffc);	76	radeon_ring_write(ring, src_offset & 0xfffffffc);
80	radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);	77	radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
81	radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);	78	radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
82	src_offset += cur_size_in_dw * 4;	79	src_offset += cur_size_in_dw * 4;
83	dst_offset += cur_size_in_dw * 4;	80	dst_offset += cur_size_in_dw * 4;
84	}	81	}
85		82
86	r = radeon_fence_emit(rdev, fence, ring->idx);	83	r = radeon_fence_emit(rdev, &fence, ring->idx);
87	if (r) {	84	if (r) {
88	radeon_ring_unlock_undo(rdev, ring);	85	radeon_ring_unlock_undo(rdev, ring);
89	radeon_semaphore_free(rdev, &sem, NULL);	86	radeon_sync_free(rdev, &sync, NULL);
90	return r;	87	return ERR_PTR(r);
91	}	88	}
92		89
93	radeon_ring_unlock_commit(rdev, ring, false);	90	radeon_ring_unlock_commit(rdev, ring, false);
94	radeon_semaphore_free(rdev, &sem, *fence);	91	radeon_sync_free(rdev, &sync, fence);
95		92
96	return r;	93	return fence;
97	}	94	}

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/radeon/rv770_dma.c – Rev 5078 → 5271