Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 301 insertions, 0 deletions

diff --git a/drivers/char/drm/sis_ds.c b/drivers/char/drm/sis_ds.c
new file mode 100644
index 000000000000..e37ed8ce48df
--- /dev/null
+++ b/drivers/char/drm/sis_ds.c
@@ -0,0 +1,301 @@
+/* sis_ds.c -- Private header for Direct Rendering Manager -*- linux-c -*-
+ * Created: Mon Jan  4 10:05:05 1999 by sclin@sis.com.tw
+ *
+ * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+ * 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, 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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT 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.
+ * 
+ * Authors:
+ *    Sung-Ching Lin <sclin@sis.com.tw>
+ * 
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "sis_ds.h"
+
+/* Set Data Structure, not check repeated value
+ * temporarily used
+ */
+
+set_t *setInit(void)
+{
+        int i;
+        set_t *set;
+
+        set = (set_t *)drm_alloc(sizeof(set_t), DRM_MEM_DRIVER);
+        if (set != NULL) {
+                for (i = 0; i < SET_SIZE; i++) {
+                        set->list[i].free_next = i + 1;    
+                        set->list[i].alloc_next = -1;
+                }
+                set->list[SET_SIZE-1].free_next = -1;
+                set->free = 0;
+                set->alloc = -1;
+                set->trace = -1;
+        }
+        return set;
+}
+
+int setAdd(set_t *set, ITEM_TYPE item)
+{
+        int free = set->free;
+  
+        if (free != -1) {
+                set->list[free].val = item;
+                set->free = set->list[free].free_next;
+        } else {
+                return 0;
+        }
+
+        set->list[free].alloc_next = set->alloc;
+        set->alloc = free;  
+        set->list[free].free_next = -1;    
+
+        return 1;
+}
+
+int setDel(set_t *set, ITEM_TYPE item)
+{
+        int alloc = set->alloc;
+        int prev = -1;  
+
+        while (alloc != -1) {
+                if (set->list[alloc].val == item) {
+                        if (prev != -1)
+                                set->list[prev].alloc_next =
+                                    set->list[alloc].alloc_next;
+                        else
+                                set->alloc = set->list[alloc].alloc_next;
+                        break;
+                }
+                prev = alloc;
+                alloc = set->list[alloc].alloc_next;
+        }
+
+        if (alloc == -1)
+                return 0;
+
+        set->list[alloc].free_next = set->free;
+        set->free = alloc;
+        set->list[alloc].alloc_next = -1;
+
+        return 1;
+}
+
+/* setFirst -> setAdd -> setNext is wrong */
+
+int setFirst(set_t *set, ITEM_TYPE *item)
+{
+        if (set->alloc == -1)
+                return 0;
+
+        *item = set->list[set->alloc].val;
+        set->trace = set->list[set->alloc].alloc_next;
+
+        return 1;
+}
+
+int setNext(set_t *set, ITEM_TYPE *item)
+{
+        if (set->trace == -1)
+                return 0;
+
+        *item = set->list[set->trace].val;
+        set->trace = set->list[set->trace].alloc_next;
+
+        return 1;
+}
+
+int setDestroy(set_t *set)
+{
+        drm_free(set, sizeof(set_t), DRM_MEM_DRIVER);
+
+        return 1;
+}
+
+/*
+ * GLX Hardware Device Driver common code
+ * Copyright (C) 1999 Wittawat Yamwong
+ *
+ * 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
+ * WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS 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 ISFREE(bptr) ((bptr)->free)
+
+memHeap_t *mmInit(int ofs,
+                  int size)
+{
+        PMemBlock blocks;
+
+        if (size <= 0)
+                return NULL;
+
+        blocks = (TMemBlock *)drm_calloc(1, sizeof(TMemBlock), DRM_MEM_DRIVER);
+        if (blocks != NULL) {
+                blocks->ofs = ofs;
+                blocks->size = size;
+                blocks->free = 1;
+                return (memHeap_t *)blocks;
+        } else
+                return NULL;
+}
+
+/* Checks if a pointer 'b' is part of the heap 'heap' */
+int mmBlockInHeap(memHeap_t *heap, PMemBlock b)
+{
+        TMemBlock *p;
+
+        if (heap == NULL || b == NULL)
+                return 0;
+
+        p = heap;
+        while (p != NULL && p != b) {
+                p = p->next;
+        }
+        if (p == b)
+                return 1;
+        else
+                return 0;
+}
+
+static TMemBlock* SliceBlock(TMemBlock *p, 
+                             int startofs, int size, 
+                             int reserved, int alignment)
+{
+        TMemBlock *newblock;
+
+        /* break left */
+        if (startofs > p->ofs) {
+                newblock = (TMemBlock*) drm_calloc(1, sizeof(TMemBlock),
+                    DRM_MEM_DRIVER);
+                newblock->ofs = startofs;
+                newblock->size = p->size - (startofs - p->ofs);
+                newblock->free = 1;
+                newblock->next = p->next;
+                p->size -= newblock->size;
+                p->next = newblock;
+                p = newblock;
+        }
+
+        /* break right */
+        if (size < p->size) {
+                newblock = (TMemBlock*) drm_calloc(1, sizeof(TMemBlock),
+                    DRM_MEM_DRIVER);
+                newblock->ofs = startofs + size;
+                newblock->size = p->size - size;
+                newblock->free = 1;
+                newblock->next = p->next;
+                p->size = size;
+                p->next = newblock;
+        }
+
+        /* p = middle block */
+        p->align = alignment;
+        p->free = 0;
+        p->reserved = reserved;
+        return p;
+}
+
+PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch)
+{
+        int mask,startofs, endofs;
+        TMemBlock *p;
+        
+        if (heap == NULL || align2 < 0 || size <= 0)
+                return NULL;
+
+        mask = (1 << align2)-1;
+        startofs = 0;
+        p = (TMemBlock *)heap;
+        while (p != NULL) {
+                if (ISFREE(p)) {
+                        startofs = (p->ofs + mask) & ~mask;
+                        if ( startofs < startSearch ) {
+                                startofs = startSearch;
+                        }
+                        endofs = startofs+size;
+                        if (endofs <= (p->ofs+p->size))
+                                break;
+                }
+                p = p->next;
+        }
+        if (p == NULL)
+                return NULL;
+        p = SliceBlock(p,startofs,size,0,mask+1);
+        p->heap = heap;
+        return p;
+}
+
+static __inline__ int Join2Blocks(TMemBlock *p)
+{
+        if (p->free && p->next && p->next->free) {
+                TMemBlock *q = p->next;
+                p->size += q->size;
+                p->next = q->next;
+                drm_free(q, sizeof(TMemBlock), DRM_MEM_DRIVER);
+                return 1;
+        }
+        return 0;
+}
+
+int mmFreeMem(PMemBlock b)
+{
+        TMemBlock *p, *prev;
+
+        if (b == NULL)
+                return 0;
+        if (b->heap == NULL)
+                return -1;
+
+        p = b->heap;
+        prev = NULL;
+        while (p != NULL && p != b) {
+                prev = p;
+                p = p->next;
+        }
+        if (p == NULL || p->free || p->reserved)
+                return -1;
+
+        p->free = 1;
+        Join2Blocks(p);
+        if (prev)
+        Join2Blocks(prev);
+        return 0;
+}
+