unsigned long s3c_g3d_reserve_chunk(struct file* filp, unsigned int size)
{
unsigned int loop_i, loop_j;
unsigned int uiRequsetBlock = (int)(size / G3D_CHUNK_SIZE);
if (size % G3D_CHUNK_SIZE > 0)
printk("s3c_g3d_reserve_chunk : wrong estimated reserve memory\n");
unsigned int uiMemMask = genMemmapMask(uiRequsetBlock);
for(loop_i = 0; loop_i < G3D_CHUNK_NUM - (uiRequsetBlock -1); loop_i++ ) {
if ((g_uiFreeMemMap & (uiMemMask << loop_i)) == (uiMemMask << loop_i)) // check free memory at memory map
{
for(loop_j = loop_i; loop_j < loop_i + uiRequsetBlock ; loop_j++ )
{
g3d_bootm[loop_j].in_used = G3D_CHUCNK_RESERVED;
g3d_bootm[loop_j].file_desc_id = (int)filp->private_data;
}
g_uiFreeMemMap &= ~(uiMemMask << loop_i); // remove free chunk block at memory map
register_alloc_info(loop_i,uiMemMask << loop_i);
printRemainChunk();
return g3d_bootm[loop_i].phy_addr;
}
}
printk("s3c_g3d_reserve_chunk failed : Cannot find adequate memory!\n");
return 0;
}
unsigned long s3c_g3d_reserve_chunk(struct file* filp, unsigned int size)
{
unsigned int loop_i, loop_j;
unsigned int uiRequsetBlock = (int)(size / G3D_CHUNK_SIZE);
unsigned long long uiMemMask = genMemmapMask(uiRequsetBlock);
int chunk_start_num;
int chunk_end_num;
int enable_lmk = 0;
unsigned int id = (unsigned int)filp->private_data;
if (size % G3D_CHUNK_SIZE > 0)
printk("s3c_g3d_reserve_chunk : wrong estimated reserve memory\n");
if(!alloc_info_head)
{
chunk_start_num = 0;
chunk_end_num = G3D_UI_CHUNK_NUM;
}
else if(alloc_info_head->file_desc_id==id) {
chunk_start_num = 0;
chunk_end_num = G3D_UI_CHUNK_NUM;
}
else{
chunk_start_num = G3D_UI_CHUNK_NUM;
chunk_end_num = G3D_CHUNK_NUM;
enable_lmk = 1;
}
#ifdef LMK_PRC_KILL
if(enable_lmk) low_memory_killer(uiRequsetBlock,uiMemMask,id);
#endif
for(loop_i = chunk_start_num; loop_i < chunk_end_num - (uiRequsetBlock -1); loop_i++ ) {
if ((g_uiFreeMemMap & (uiMemMask << loop_i)) == (uiMemMask << loop_i)) // check free memory at memory map
{
for(loop_j = loop_i; loop_j < loop_i + uiRequsetBlock ; loop_j++ )
{
g3d_bootm[loop_j].in_used = G3D_CHUCNK_RESERVED;
g3d_bootm[loop_j].file_desc_id = (int)filp->private_data;
}
g_uiFreeMemMap &= ~(uiMemMask << loop_i); // remove free chunk block at memory map
register_alloc_info(loop_i,uiMemMask << loop_i);
printRemainChunk();
return g3d_bootm[loop_i].phy_addr;
}
}
printk("s3c_g3d_reserve_chunk failed : Cannot find adequate memory!\n");
return 0;
}
void s3c_g3d_release_chunk(unsigned int phy_addr, int size)
{
unsigned int loop_i, loop_j;
struct mm_struct *mm = current->mm;
unsigned int uiRequsetBlock = (int)(size / G3D_CHUNK_SIZE);
unsigned int uiMemMask = genMemmapMask(uiRequsetBlock);
for(loop_i = 0; loop_i < G3D_CHUNK_NUM - (uiRequsetBlock - 1); loop_i++ ) {
if( g3d_bootm[loop_i].phy_addr == phy_addr ) {
if ((g_uiFreeMemMap & (uiMemMask << loop_i)) != 0) // check free memory at memory map
{
printk("s3c_g3d_release_chunk : memory map is crashed");
break;
}
do_munmap(mm, g3d_bootm[loop_i].vir_addr, size);
g_uiFreeMemMap |= (uiMemMask << loop_i); // add free chunk block at memory map
unregister_alloc_info(loop_i,uiMemMask << loop_i);
for(loop_j = loop_i; loop_j < loop_i + uiRequsetBlock ; loop_j++ )
{
g3d_bootm[loop_j].in_used = G3D_CHUCNK_AVALIABLE;
g3d_bootm[loop_j].file_desc_id = 0;
}
break;
}
}
if(loop_i >= G3D_CHUNK_NUM)
printk("s3c_g3d_release_chunk failed : Cannot find the phys_addr : 0x%p\n", (void*)phy_addr);
printRemainChunk();
}
