WebSVN – Kolibri OS – Diff – /drivers/video/drm/vmwgfx/vmwgfx_gmr.c


/**************************************************************************
 *
 * Copyright © 2009-2011 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * 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, sub license, 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 (including the
 * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
 *
 **************************************************************************/
#define mb()    asm volatile("mfence" : : : "memory")
#define rmb()   asm volatile("lfence" : : : "memory")
#define wmb()   asm volatile("sfence" : : : "memory")
 
#include "vmwgfx_drv.h"
#include 
 
 
#include 
 
#define VMW_PPN_SIZE sizeof(unsigned long)
 
static int vmw_gmr2_bind(struct vmw_private *dev_priv,
			 struct page *pages[],
			 unsigned long num_pages,
			 int gmr_id)
{
	SVGAFifoCmdDefineGMR2 define_cmd;
	SVGAFifoCmdRemapGMR2 remap_cmd;
	uint32_t define_size = sizeof(define_cmd) + 4;
	uint32_t remap_size = VMW_PPN_SIZE * num_pages + sizeof(remap_cmd) + 4;
	uint32_t *cmd;
	uint32_t *cmd_orig;
	uint32_t i;
 
	cmd_orig = cmd = vmw_fifo_reserve(dev_priv, define_size + remap_size);
	if (unlikely(cmd == NULL))
		return -ENOMEM;
 
	define_cmd.gmrId = gmr_id;
	define_cmd.numPages = num_pages;
 
	remap_cmd.gmrId = gmr_id;
	remap_cmd.flags = (VMW_PPN_SIZE > sizeof(*cmd)) ?
		SVGA_REMAP_GMR2_PPN64 : SVGA_REMAP_GMR2_PPN32;
	remap_cmd.offsetPages = 0;
	remap_cmd.numPages = num_pages;
 
	*cmd++ = SVGA_CMD_DEFINE_GMR2;
	memcpy(cmd, &define_cmd, sizeof(define_cmd));
	cmd += sizeof(define_cmd) / sizeof(uint32);
 
	*cmd++ = SVGA_CMD_REMAP_GMR2;
	memcpy(cmd, &remap_cmd, sizeof(remap_cmd));
	cmd += sizeof(remap_cmd) / sizeof(uint32);
 
	for (i = 0; i < num_pages; ++i) {
		if (VMW_PPN_SIZE <= 4)
			*cmd = page_to_pfn(*pages++);
		else
			*((uint64_t *)cmd) = page_to_pfn(*pages++);
 
		cmd += VMW_PPN_SIZE / sizeof(*cmd);
	}
 
	vmw_fifo_commit(dev_priv, define_size + remap_size);
 
	return 0;
}
 
static void vmw_gmr2_unbind(struct vmw_private *dev_priv,
			    int gmr_id)
{
	SVGAFifoCmdDefineGMR2 define_cmd;
	uint32_t define_size = sizeof(define_cmd) + 4;
	uint32_t *cmd;
 
	cmd = vmw_fifo_reserve(dev_priv, define_size);
	if (unlikely(cmd == NULL)) {
		DRM_ERROR("GMR2 unbind failed.\n");
		return;
	}
	define_cmd.gmrId = gmr_id;
	define_cmd.numPages = 0;
 
	*cmd++ = SVGA_CMD_DEFINE_GMR2;
	memcpy(cmd, &define_cmd, sizeof(define_cmd));
 
	vmw_fifo_commit(dev_priv, define_size);
}
 
 
int vmw_gmr_bind(struct vmw_private *dev_priv,
		 struct page *pages[],
		 unsigned long num_pages,
		 int gmr_id)
{
	struct list_head desc_pages;
	int ret;
 
	if (likely(dev_priv->capabilities & SVGA_CAP_GMR2))
		return vmw_gmr2_bind(dev_priv, pages, num_pages, gmr_id);
 
    printf("%s epic fail\n",__FUNCTION__);
    return -EINVAL;
}
 
 
void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id)
{
	if (likely(dev_priv->capabilities & SVGA_CAP_GMR2)) {
		vmw_gmr2_unbind(dev_priv, gmr_id);
		return;
	}
 
	mutex_lock(&dev_priv->hw_mutex);
	vmw_write(dev_priv, SVGA_REG_GMR_ID, gmr_id);
	wmb();
	vmw_write(dev_priv, SVGA_REG_GMR_DESCRIPTOR, 0);
	mb();
	mutex_unlock(&dev_priv->hw_mutex);
}

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/vmwgfx/vmwgfx_gmr.c – Rev 4075 → 4080

Rev 4075		Rev 4080
1	/**************************************************************************	1	/**************************************************************************
2	*	2	*
3	* Copyright © 2009-2011 VMware, Inc., Palo Alto, CA., USA	3	* Copyright © 2009-2011 VMware, Inc., Palo Alto, CA., USA
4	* All Rights Reserved.	4	* All Rights Reserved.
5	*	5	*
6	* Permission is hereby granted, free of charge, to any person obtaining a	6	* Permission is hereby granted, free of charge, to any person obtaining a
7	* copy of this software and associated documentation files (the	7	* copy of this software and associated documentation files (the
8	* "Software"), to deal in the Software without restriction, including	8	* "Software"), to deal in the Software without restriction, including
9	* without limitation the rights to use, copy, modify, merge, publish,	9	* without limitation the rights to use, copy, modify, merge, publish,
10	* distribute, sub license, and/or sell copies of the Software, and to	10	* distribute, sub license, and/or sell copies of the Software, and to
11	* permit persons to whom the Software is furnished to do so, subject to	11	* permit persons to whom the Software is furnished to do so, subject to
12	* the following conditions:	12	* the following conditions:
13	*	13	*
14	* The above copyright notice and this permission notice (including the	14	* The above copyright notice and this permission notice (including the
15	* next paragraph) shall be included in all copies or substantial portions	15	* next paragraph) shall be included in all copies or substantial portions
16	* of the Software.	16	* of the Software.
17	*	17	*
18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL	20	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,	21	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR	22	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE	23	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24	* USE OR OTHER DEALINGS IN THE SOFTWARE.	24	* USE OR OTHER DEALINGS IN THE SOFTWARE.
25	*	25	*
26	**************************************************************************/	26	**************************************************************************/
27	#define mb() asm volatile("mfence" : : : "memory")	27	#define mb() asm volatile("mfence" : : : "memory")
28	#define rmb() asm volatile("lfence" : : : "memory")	28	#define rmb() asm volatile("lfence" : : : "memory")
29	#define wmb() asm volatile("sfence" : : : "memory")	29	#define wmb() asm volatile("sfence" : : : "memory")
-		30
30		31	#include "vmwgfx_drv.h"
31	#include	32	#include
32	#include	-
33	#include "vmwgfx_drv.h"	-
34		33	#include
35		34
36	#define VMW_PPN_SIZE sizeof(unsigned long)	35	#define VMW_PPN_SIZE sizeof(unsigned long)
37		36
38	static int vmw_gmr2_bind(struct vmw_private *dev_priv,	37	static int vmw_gmr2_bind(struct vmw_private *dev_priv,
39	struct page *pages[],	38	struct page *pages[],
40	unsigned long num_pages,	39	unsigned long num_pages,
41	int gmr_id)	40	int gmr_id)
42	{	41	{
43	SVGAFifoCmdDefineGMR2 define_cmd;	42	SVGAFifoCmdDefineGMR2 define_cmd;
44	SVGAFifoCmdRemapGMR2 remap_cmd;	43	SVGAFifoCmdRemapGMR2 remap_cmd;
45	uint32_t define_size = sizeof(define_cmd) + 4;	44	uint32_t define_size = sizeof(define_cmd) + 4;
46	uint32_t remap_size = VMW_PPN_SIZE * num_pages + sizeof(remap_cmd) + 4;	45	uint32_t remap_size = VMW_PPN_SIZE * num_pages + sizeof(remap_cmd) + 4;
47	uint32_t *cmd;	46	uint32_t *cmd;
48	uint32_t *cmd_orig;	47	uint32_t *cmd_orig;
49	uint32_t i;	48	uint32_t i;
50		49
51	cmd_orig = cmd = vmw_fifo_reserve(dev_priv, define_size + remap_size);	50	cmd_orig = cmd = vmw_fifo_reserve(dev_priv, define_size + remap_size);
52	if (unlikely(cmd == NULL))	51	if (unlikely(cmd == NULL))
53	return -ENOMEM;	52	return -ENOMEM;
54		53
55	define_cmd.gmrId = gmr_id;	54	define_cmd.gmrId = gmr_id;
56	define_cmd.numPages = num_pages;	55	define_cmd.numPages = num_pages;
57		56
58	remap_cmd.gmrId = gmr_id;	57	remap_cmd.gmrId = gmr_id;
59	remap_cmd.flags = (VMW_PPN_SIZE > sizeof(*cmd)) ?	58	remap_cmd.flags = (VMW_PPN_SIZE > sizeof(*cmd)) ?
60	SVGA_REMAP_GMR2_PPN64 : SVGA_REMAP_GMR2_PPN32;	59	SVGA_REMAP_GMR2_PPN64 : SVGA_REMAP_GMR2_PPN32;
61	remap_cmd.offsetPages = 0;	60	remap_cmd.offsetPages = 0;
62	remap_cmd.numPages = num_pages;	61	remap_cmd.numPages = num_pages;
63		62
64	*cmd++ = SVGA_CMD_DEFINE_GMR2;	63	*cmd++ = SVGA_CMD_DEFINE_GMR2;
65	memcpy(cmd, &define_cmd, sizeof(define_cmd));	64	memcpy(cmd, &define_cmd, sizeof(define_cmd));
66	cmd += sizeof(define_cmd) / sizeof(uint32);	65	cmd += sizeof(define_cmd) / sizeof(uint32);
67		66
68	*cmd++ = SVGA_CMD_REMAP_GMR2;	67	*cmd++ = SVGA_CMD_REMAP_GMR2;
69	memcpy(cmd, &remap_cmd, sizeof(remap_cmd));	68	memcpy(cmd, &remap_cmd, sizeof(remap_cmd));
70	cmd += sizeof(remap_cmd) / sizeof(uint32);	69	cmd += sizeof(remap_cmd) / sizeof(uint32);
71		70
72	for (i = 0; i < num_pages; ++i) {	71	for (i = 0; i < num_pages; ++i) {
73	if (VMW_PPN_SIZE <= 4)	72	if (VMW_PPN_SIZE <= 4)
74	cmd = page_to_pfn(pages++);	73	cmd = page_to_pfn(pages++);
75	else	74	else
76	((uint64_t )cmd) = page_to_pfn(*pages++);	75	((uint64_t )cmd) = page_to_pfn(*pages++);
77		76
78	cmd += VMW_PPN_SIZE / sizeof(*cmd);	77	cmd += VMW_PPN_SIZE / sizeof(*cmd);
79	}	78	}
80		79
81	vmw_fifo_commit(dev_priv, define_size + remap_size);	80	vmw_fifo_commit(dev_priv, define_size + remap_size);
82		81
83	return 0;	82	return 0;
84	}	83	}
85		84
86	static void vmw_gmr2_unbind(struct vmw_private *dev_priv,	85	static void vmw_gmr2_unbind(struct vmw_private *dev_priv,
87	int gmr_id)	86	int gmr_id)
88	{	87	{
89	SVGAFifoCmdDefineGMR2 define_cmd;	88	SVGAFifoCmdDefineGMR2 define_cmd;
90	uint32_t define_size = sizeof(define_cmd) + 4;	89	uint32_t define_size = sizeof(define_cmd) + 4;
91	uint32_t *cmd;	90	uint32_t *cmd;
92		91
93	cmd = vmw_fifo_reserve(dev_priv, define_size);	92	cmd = vmw_fifo_reserve(dev_priv, define_size);
94	if (unlikely(cmd == NULL)) {	93	if (unlikely(cmd == NULL)) {
95	DRM_ERROR("GMR2 unbind failed.\n");	94	DRM_ERROR("GMR2 unbind failed.\n");
96	return;	95	return;
97	}	96	}
98	define_cmd.gmrId = gmr_id;	97	define_cmd.gmrId = gmr_id;
99	define_cmd.numPages = 0;	98	define_cmd.numPages = 0;
100		99
101	*cmd++ = SVGA_CMD_DEFINE_GMR2;	100	*cmd++ = SVGA_CMD_DEFINE_GMR2;
102	memcpy(cmd, &define_cmd, sizeof(define_cmd));	101	memcpy(cmd, &define_cmd, sizeof(define_cmd));
103		102
104	vmw_fifo_commit(dev_priv, define_size);	103	vmw_fifo_commit(dev_priv, define_size);
105	}	104	}
106		105
107		106
108	int vmw_gmr_bind(struct vmw_private *dev_priv,	107	int vmw_gmr_bind(struct vmw_private *dev_priv,
109	struct page *pages[],	108	struct page *pages[],
110	unsigned long num_pages,	109	unsigned long num_pages,
111	int gmr_id)	110	int gmr_id)
112	{	111	{
113	struct list_head desc_pages;	112	struct list_head desc_pages;
114	int ret;	113	int ret;
115		114
116	if (likely(dev_priv->capabilities & SVGA_CAP_GMR2))	115	if (likely(dev_priv->capabilities & SVGA_CAP_GMR2))
117	return vmw_gmr2_bind(dev_priv, pages, num_pages, gmr_id);	116	return vmw_gmr2_bind(dev_priv, pages, num_pages, gmr_id);
118		117
119	printf("%s epic fail\n",__FUNCTION__);	118	printf("%s epic fail\n",__FUNCTION__);
120	return -EINVAL;	119	return -EINVAL;
121	}	120	}
122		121
123		122
124	void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id)	123	void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id)
125	{	124	{
126	if (likely(dev_priv->capabilities & SVGA_CAP_GMR2)) {	125	if (likely(dev_priv->capabilities & SVGA_CAP_GMR2)) {
127	vmw_gmr2_unbind(dev_priv, gmr_id);	126	vmw_gmr2_unbind(dev_priv, gmr_id);
128	return;	127	return;
129	}	128	}
130		129
131	mutex_lock(&dev_priv->hw_mutex);	130	mutex_lock(&dev_priv->hw_mutex);
132	vmw_write(dev_priv, SVGA_REG_GMR_ID, gmr_id);	131	vmw_write(dev_priv, SVGA_REG_GMR_ID, gmr_id);
133	wmb();	132	wmb();
134	vmw_write(dev_priv, SVGA_REG_GMR_DESCRIPTOR, 0);	133	vmw_write(dev_priv, SVGA_REG_GMR_DESCRIPTOR, 0);
135	mb();	134	mb();
136	mutex_unlock(&dev_priv->hw_mutex);	135	mutex_unlock(&dev_priv->hw_mutex);
137	}	136	}