WebSVN – Kolibri OS – Blame – /drivers/video/drm/i915/bitmap.c

Rev	Author	Line No.	Line
2340	Serge	1
		2	#include
		3	#include "i915_drm.h"
		4	#include "i915_drv.h"
		5	#include "intel_drv.h"
		6	#include "bitmap.h"
		7
		8
		9
		10
		11
		12
		13	{
		14	int ret;
		15
		16
		17
		18
		19	};
		20
		21
		22
		23	{
		24	struct drm_i915_gem_object *obj;
		25
		26
		27	u32 handle;
		28	u32 size;
		29	u32 pitch;
		30	void *uaddr;
		31
		32
		33
		34
		35	pbitmap->data = NULL;
		36
		37
		38	goto err1;
		39
		40
		41
		42
		43	goto err1;
		44
		45
		46	if( bitmap == NULL)
		47	goto err1;
		48
		49
		50
		51
		52
		53
		54
		55
		56	if (obj == NULL)
		57	goto err2;
		58
		59
		60	if (ret)
		61	goto err3;
		62
		63
		64	if( uaddr == NULL)
		65	goto err4;
		66	else
		67	{
		68	u32_t src, dst;
		69	int count;
		70
		71
		72
		73
		74	dst = &((u32_t*)page_tabs)[(u32_t)uaddr >> 12];
		75	count = size/4096;
		76
		77
		78	{
		79	dst++ = (0xFFFFF000 & src++) \| 0x207 ; // map as shared page
		80	};
		81	}
		82
		83
		84	bitmap->width = width;
		85	bitmap->height = height;
		86	bitmap->pitch = pitch;
		87	bitmap->gaddr = obj->gtt_offset;
		88	bitmap->uaddr = uaddr;
		89	bitmap->obj = obj;
		90
		91
		92	pbitmap->data = uaddr;
		93	return 0;
		94
		95
		96	// drm_gem_object_unpin;
		97	err3:
		98	// drm_gem_object_unreference(&obj->base);
		99	err2:
		100	free_handle(&bm_man, handle);
		101	DestroyObject(bitmap);
		102	err1:
		103	return -1;
		104
		105
		106
		107
		108
		109	{
		110	struct drm_i915_gem_object *obj;
		111
		112
		113	size_t pitch;
		114	void *uaddr;
		115
		116
		117
		118
		119	goto err1;
		120
		121
		122
		123
		124
		125
		126	if (obj == NULL)
		127	goto err2;
		128
		129
		130	if (ret)
		131	goto err3;
		132
		133
		134	if( uaddr == NULL)
		135	goto err4;
		136	else
		137	{
		138	u32_t src, dst;
		139	int count;
		140
		141
		142
		143
		144	dst = &((u32_t*)page_tabs)[(u32_t)uaddr >> 12];
		145	count = size/4096;
		146
		147
		148	{
		149	dst++ = (0xFFFFF000 & src++) \| 0x207 ; // map as shared page
		150	};
		151	}
		152
		153
		154	outp[2] = (u32)uaddr;
		155	outp[3] = pitch;
		156
		157
		158
		159
		160	// drm_gem_object_unpin;
		161	err3:
		162	// drm_gem_object_unreference(&obj->base);
		163	err2:
		164	err1:
		165	return -1;
		166	};
		167
		168
		169
		170	{
		171	u32* data;
		172
		173
		174	if(data)
		175	{
		176	int i;
		177
		178
		179	data[i] = ++i;
		180	data[i] = 0;
		181
		182
		183	man->next = 0;
		184	man->avail = count;
		185	man->count = count;
		186
		187
		188	};
		189	return -ENOMEM;
		190	};
		191
		192
		193	{
		194	u32 handle = 0;
		195
		196
		197	{
		198	handle = man->next;
		199	man->next = man->table[handle];
		200	man->avail--;
		201	handle++;
		202	}
		203	return handle;
		204	};
		205
		206
		207	{
		208	int ret = -1;
		209
		210
		211
		212
		213	{
		214	man->table[handle] = man->next;
		215	man->next = handle;
		216	man->avail++;
		217	ret = 0;
		218	};
		219
		220
		221	};
		222

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/bitmap.c @ 2344 – Rev 2340