/*******************************************************************************
**
** gckVGMMU_Destroy
**
** Destroy a nAQMMU object.
**
** INPUT:
**
** gckVGMMU Mmu
** Pointer to an gckVGMMU object.
**
** OUTPUT:
**
** Nothing.
*/
gceSTATUS gckVGMMU_Destroy(
IN gckVGMMU Mmu
)
{
gcmkHEADER_ARG("Mmu=0x%x", Mmu);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
/* Free the page table. */
gcmkVERIFY_OK(gckOS_FreeContiguous(Mmu->os,
Mmu->pageTablePhysical,
Mmu->pageTableLogical,
Mmu->pageTableSize));
/* Roll back. */
gcmkVERIFY_OK(gckOS_DeleteMutex(Mmu->os, Mmu->mutex));
/* Mark the gckVGMMU object as unknown. */
Mmu->object.type = gcvOBJ_UNKNOWN;
/* Free the gckVGMMU object. */
gcmkVERIFY_OK(gckOS_Free(Mmu->os, Mmu));
gcmkFOOTER_NO();
/* Success. */
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckCOMMAND_Destroy
**
** Destroy an gckCOMMAND object.
**
** INPUT:
**
** gckCOMMAND Command
** Pointer to an gckCOMMAND object to destroy.
**
** OUTPUT:
**
** Nothing.
*/
gceSTATUS
gckCOMMAND_Destroy(
IN gckCOMMAND Command
)
{
gctINT i;
gcmkHEADER_ARG("Command=0x%x", Command);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
/* Stop the command queue. */
gcmkVERIFY_OK(gckCOMMAND_Stop(Command));
for (i = 0; i < gcdCOMMAND_QUEUES; ++i)
{
gcmkASSERT(Command->queues[i].signal != gcvNULL);
gcmkVERIFY_OK(
gckOS_DestroySignal(Command->os, Command->queues[i].signal));
gcmkASSERT(Command->queues[i].logical != gcvNULL);
gcmkVERIFY_OK(
gckOS_FreeNonPagedMemory(Command->os,
Command->pageSize,
Command->queues[i].physical,
Command->queues[i].logical));
}
/* Delete the context switching mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(Command->os, Command->mutexContext));
/* Delete the command queue mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(Command->os, Command->mutexQueue));
/* Mark object as unknown. */
Command->object.type = gcvOBJ_UNKNOWN;
/* Free the gckCOMMAND object. */
gcmkVERIFY_OK(gckOS_Free(Command->os, Command));
/* Success. */
gcmkFOOTER_NO();
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckVIDMEM_Destroy
**
** Destroy an gckVIDMEM object.
**
** INPUT:
**
** gckVIDMEM Memory
** Pointer to an gckVIDMEM object to destroy.
**
** OUTPUT:
**
** Nothing.
*/
gceSTATUS
gckVIDMEM_Destroy(
IN gckVIDMEM Memory
)
{
gcuVIDMEM_NODE_PTR node, next;
gctINT i;
gcmkHEADER_ARG("Memory=0x%x", Memory);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Memory, gcvOBJ_VIDMEM);
/* Walk all sentinels. */
for (i = 0; i < gcmCOUNTOF(Memory->sentinel); ++i)
{
/* Bail out of the heap is not used. */
if (Memory->sentinel[i].VidMem.next == gcvNULL)
{
break;
}
/* Walk all the nodes until we reach the sentinel. */
for (node = Memory->sentinel[i].VidMem.next;
node->VidMem.bytes != 0;
node = next)
{
/* Save pointer to the next node. */
next = node->VidMem.next;
/* Free the node. */
gcmkVERIFY_OK(gckOS_Free(Memory->os, node));
}
}
/* Free the mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(Memory->os, Memory->mutex));
/* Mark the object as unknown. */
Memory->object.type = gcvOBJ_UNKNOWN;
/* Free the gckVIDMEM object. */
gcmkVERIFY_OK(gckOS_Free(Memory->os, Memory));
/* Success. */
gcmkFOOTER_NO();
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckVIDMEM_DestroyVirtual
**
** Destroy an gcuVIDMEM_NODE union for virtual memory.
**
** INPUT:
**
** gcuVIDMEM_NODE_PTR Node
** Pointer to a gcuVIDMEM_NODE union.
**
** OUTPUT:
**
** Nothing.
*/
gceSTATUS
gckVIDMEM_DestroyVirtual(
IN gcuVIDMEM_NODE_PTR Node
)
{
gckOS os;
gcmkHEADER_ARG("Node=0x%x", Node);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Node->Virtual.kernel, gcvOBJ_KERNEL);
/* Extact the gckOS object pointer. */
os = Node->Virtual.kernel->os;
gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
#ifdef __QNXNTO__
/* Unregister. */
gcmkVERIFY_OK(
gckMMU_RemoveNode(Node->Virtual.kernel->mmu, Node));
/* Free virtual memory. */
gcmkVERIFY_OK(
gckOS_FreePagedMemory(os,
Node->Virtual.physical,
Node->Virtual.bytes));
#endif
/* Delete the mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(os, Node->Virtual.mutex));
if (Node->Virtual.pageTable != gcvNULL)
{
/* Free the pages. */
gcmkVERIFY_OK(gckMMU_FreePages(Node->Virtual.kernel->mmu,
Node->Virtual.pageTable,
Node->Virtual.pageCount));
}
/* Delete the gcuVIDMEM_NODE union. */
gcmkVERIFY_OK(gckOS_Free(os, Node));
/* Success. */
gcmkFOOTER_NO();
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckHEAP_Destroy
**
** Destroy a gckHEAP object.
**
** INPUT:
**
** gckHEAP Heap
** Pointer to a gckHEAP object to destroy.
**
** OUTPUT:
**
** Nothing.
*/
gceSTATUS
gckHEAP_Destroy(
IN gckHEAP Heap
)
{
gcskHEAP_PTR heap;
#if gcmIS_DEBUG(gcdDEBUG_CODE)
gctSIZE_T leaked = 0;
#endif
gcmkHEADER_ARG("Heap=0x%x", Heap);
for (heap = Heap->heap; heap != gcvNULL; heap = Heap->heap)
{
/* Unlink heap from linked list. */
Heap->heap = heap->next;
#if gcmIS_DEBUG(gcdDEBUG_CODE)
/* Check for leaked memory. */
leaked += _DumpHeap(heap);
#endif
/* Free the heap. */
gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, heap));
}
/* Free the mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(Heap->os, Heap->mutex));
/* Free the heap structure. */
gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, Heap));
/* Success. */
#if gcmIS_DEBUG(gcdDEBUG_CODE)
gcmkFOOTER_ARG("leaked=%lu", leaked);
#else
gcmkFOOTER_NO();
#endif
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckVGMMU_Construct
**
** Construct a new gckVGMMU object.
**
** INPUT:
**
** gckVGKERNEL Kernel
** Pointer to an gckVGKERNEL object.
**
** gctSIZE_T MmuSize
** Number of bytes for the page table.
**
** OUTPUT:
**
** gckVGMMU * Mmu
** Pointer to a variable that receives the gckVGMMU object pointer.
*/
gceSTATUS gckVGMMU_Construct(
IN gckVGKERNEL Kernel,
IN gctSIZE_T MmuSize,
OUT gckVGMMU * Mmu
)
{
gckOS os;
gckVGHARDWARE hardware;
gceSTATUS status;
gckVGMMU mmu;
gctUINT32 * pageTable;
gctUINT32 i;
gcmkHEADER_ARG("Kernel=0x%x MmuSize=0x%x Mmu=0x%x", Kernel, MmuSize, Mmu);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
gcmkVERIFY_ARGUMENT(MmuSize > 0);
gcmkVERIFY_ARGUMENT(Mmu != gcvNULL);
/* Extract the gckOS object pointer. */
os = Kernel->os;
gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
/* Extract the gckVGHARDWARE object pointer. */
hardware = Kernel->hardware;
gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
/* Allocate memory for the gckVGMMU object. */
status = gckOS_Allocate(os, sizeof(struct _gckVGMMU), (gctPOINTER *) &mmu);
if (status < 0)
{
/* Error. */
gcmkFATAL(
"%s(%d): could not allocate gckVGMMU object.",
__FUNCTION__, __LINE__
);
gcmkFOOTER();
return status;
}
/* Initialize the gckVGMMU object. */
mmu->object.type = gcvOBJ_MMU;
mmu->os = os;
mmu->hardware = hardware;
/* Create the mutex. */
status = gckOS_CreateMutex(os, &mmu->mutex);
if (status < 0)
{
/* Roll back. */
mmu->object.type = gcvOBJ_UNKNOWN;
gcmkVERIFY_OK(gckOS_Free(os, mmu));
gcmkFOOTER();
/* Error. */
return status;
}
/* Allocate the page table. */
mmu->pageTableSize = MmuSize;
status = gckOS_AllocateContiguous(os,
gcvFALSE,
&mmu->pageTableSize,
&mmu->pageTablePhysical,
&mmu->pageTableLogical);
if (status < 0)
{
/* Roll back. */
gcmkVERIFY_OK(gckOS_DeleteMutex(os, mmu->mutex));
mmu->object.type = gcvOBJ_UNKNOWN;
gcmkVERIFY_OK(gckOS_Free(os, mmu));
/* Error. */
gcmkFATAL(
"%s(%d): could not allocate page table.",
__FUNCTION__, __LINE__
);
gcmkFOOTER();
return status;
}
/* Compute number of entries in page table. */
mmu->entryCount = mmu->pageTableSize / sizeof(gctUINT32);
mmu->entry = 0;
/* Mark the entire page table as available. */
pageTable = (gctUINT32 *) mmu->pageTableLogical;
for (i = 0; i < mmu->entryCount; i++)
{
pageTable[i] = (gctUINT32)~0;
}
/* Set page table address. */
status = gckVGHARDWARE_SetMMU(hardware, mmu->pageTableLogical);
if (status < 0)
{
/* Free the page table. */
gcmkVERIFY_OK(gckOS_FreeContiguous(mmu->os,
mmu->pageTablePhysical,
mmu->pageTableLogical,
mmu->pageTableSize));
/* Roll back. */
gcmkVERIFY_OK(gckOS_DeleteMutex(os, mmu->mutex));
mmu->object.type = gcvOBJ_UNKNOWN;
gcmkVERIFY_OK(gckOS_Free(os, mmu));
/* Error. */
gcmkFATAL(
"%s(%d): could not program page table.",
__FUNCTION__, __LINE__
);
gcmkFOOTER();
return status;
}
/* Return the gckVGMMU object pointer. */
*Mmu = mmu;
gcmkTRACE_ZONE(
gcvLEVEL_INFO, gcvZONE_MMU,
"%s(%d): %u entries at %p.(0x%08X)\n",
__FUNCTION__, __LINE__,
mmu->entryCount,
mmu->pageTableLogical,
mmu->pageTablePhysical
);
gcmkFOOTER_NO();
/* Success. */
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckVIDMEM_Construct
**
** Construct a new gckVIDMEM object.
**
** INPUT:
**
** gckOS Os
** Pointer to an gckOS object.
**
** gctUINT32 BaseAddress
** Base address for the video memory heap.
**
** gctSIZE_T Bytes
** Number of bytes in the video memory heap.
**
** gctSIZE_T Threshold
** Minimum number of bytes beyond am allocation before the node is
** split. Can be used as a minimum alignment requirement.
**
** gctSIZE_T BankSize
** Number of bytes per physical memory bank. Used by bank
** optimization.
**
** OUTPUT:
**
** gckVIDMEM * Memory
** Pointer to a variable that will hold the pointer to the gckVIDMEM
** object.
*/
gceSTATUS
gckVIDMEM_Construct(
IN gckOS Os,
IN gctUINT32 BaseAddress,
IN gctSIZE_T Bytes,
IN gctSIZE_T Threshold,
IN gctSIZE_T BankSize,
OUT gckVIDMEM * Memory
)
{
gckVIDMEM memory = gcvNULL;
gceSTATUS status;
gcuVIDMEM_NODE_PTR node;
gctINT i, banks = 0;
gcmkHEADER_ARG("Os=0x%x BaseAddress=%08x Bytes=%lu Threshold=%lu "
"BankSize=%lu",
Os, BaseAddress, Bytes, Threshold, BankSize);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
gcmkVERIFY_ARGUMENT(Bytes > 0);
gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
/* Allocate the gckVIDMEM object. */
gcmkONERROR(
gckOS_Allocate(Os,
gcmSIZEOF(struct _gckVIDMEM),
(gctPOINTER *) &memory));
/* Initialize the gckVIDMEM object. */
memory->object.type = gcvOBJ_VIDMEM;
memory->os = Os;
/* Set video memory heap information. */
memory->baseAddress = BaseAddress;
memory->bytes = Bytes;
memory->freeBytes = Bytes;
memory->threshold = Threshold;
memory->mutex = gcvNULL;
BaseAddress = 0;
/* Walk all possible banks. */
for (i = 0; i < gcmCOUNTOF(memory->sentinel); ++i)
{
gctSIZE_T bytes;
if (BankSize == 0)
{
/* Use all bytes for the first bank. */
bytes = Bytes;
}
else
{
/* Compute number of bytes for this bank. */
bytes = gcmALIGN(BaseAddress + 1, BankSize) - BaseAddress;
if (bytes > Bytes)
{
/* Make sure we don't exceed the total number of bytes. */
bytes = Bytes;
}
}
if (bytes == 0)
{
/* Mark heap is not used. */
memory->sentinel[i].VidMem.next =
memory->sentinel[i].VidMem.prev =
memory->sentinel[i].VidMem.nextFree =
memory->sentinel[i].VidMem.prevFree = gcvNULL;
continue;
}
/* Allocate one gcuVIDMEM_NODE union. */
gcmkONERROR(
gckOS_Allocate(Os,
gcmSIZEOF(gcuVIDMEM_NODE),
(gctPOINTER *) &node));
/* Initialize gcuVIDMEM_NODE union. */
node->VidMem.memory = memory;
node->VidMem.next =
node->VidMem.prev =
node->VidMem.nextFree =
node->VidMem.prevFree = &memory->sentinel[i];
node->VidMem.offset = BaseAddress;
node->VidMem.bytes = bytes;
node->VidMem.alignment = 0;
node->VidMem.physical = 0;
node->VidMem.pool = gcvPOOL_UNKNOWN;
node->VidMem.locked = 0;
#ifdef __QNXNTO__
node->VidMem.logical = gcvNULL;
node->VidMem.handle = 0;
#endif
/* Initialize the linked list of nodes. */
memory->sentinel[i].VidMem.next =
memory->sentinel[i].VidMem.prev =
memory->sentinel[i].VidMem.nextFree =
memory->sentinel[i].VidMem.prevFree = node;
/* Mark sentinel. */
memory->sentinel[i].VidMem.bytes = 0;
/* Adjust address for next bank. */
BaseAddress += bytes;
Bytes -= bytes;
banks ++;
}
/* Assign all the bank mappings. */
memory->mapping[gcvSURF_RENDER_TARGET] = banks - 1;
memory->mapping[gcvSURF_BITMAP] = banks - 1;
if (banks > 1) --banks;
memory->mapping[gcvSURF_DEPTH] = banks - 1;
memory->mapping[gcvSURF_HIERARCHICAL_DEPTH] = banks - 1;
if (banks > 1) --banks;
memory->mapping[gcvSURF_TEXTURE] = banks - 1;
if (banks > 1) --banks;
memory->mapping[gcvSURF_VERTEX] = banks - 1;
if (banks > 1) --banks;
memory->mapping[gcvSURF_INDEX] = banks - 1;
if (banks > 1) --banks;
memory->mapping[gcvSURF_TILE_STATUS] = banks - 1;
if (banks > 1) --banks;
memory->mapping[gcvSURF_TYPE_UNKNOWN] = 0;
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"[GALCORE] INDEX: bank %d",
memory->mapping[gcvSURF_INDEX]);
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"[GALCORE] VERTEX: bank %d",
memory->mapping[gcvSURF_VERTEX]);
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"[GALCORE] TEXTURE: bank %d",
memory->mapping[gcvSURF_TEXTURE]);
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"[GALCORE] RENDER_TARGET: bank %d",
memory->mapping[gcvSURF_RENDER_TARGET]);
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"[GALCORE] DEPTH: bank %d",
memory->mapping[gcvSURF_DEPTH]);
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"[GALCORE] TILE_STATUS: bank %d",
memory->mapping[gcvSURF_TILE_STATUS]);
/* Allocate the mutex. */
gcmkONERROR(gckOS_CreateMutex(Os, &memory->mutex));
/* Return pointer to the gckVIDMEM object. */
*Memory = memory;
/* Success. */
gcmkFOOTER_ARG("*Memory=0x%x", *Memory);
return gcvSTATUS_OK;
OnError:
/* Roll back. */
if (memory != gcvNULL)
{
if (memory->mutex != gcvNULL)
{
/* Delete the mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(Os, memory->mutex));
}
for (i = 0; i < banks; ++i)
{
/* Free the heap. */
gcmkASSERT(memory->sentinel[i].VidMem.next != gcvNULL);
gcmkVERIFY_OK(gckOS_Free(Os, memory->sentinel[i].VidMem.next));
}
/* Free the object. */
gcmkVERIFY_OK(gckOS_Free(Os, memory));
}
/* Return the status. */
gcmkFOOTER();
return status;
}
/*******************************************************************************
**
** gckVIDMEM_ConstructVirtual
**
** Construct a new gcuVIDMEM_NODE union for virtual memory.
**
** INPUT:
**
** gckKERNEL Kernel
** Pointer to an gckKERNEL object.
**
** gctSIZE_T Bytes
** Number of byte to allocate.
**
** OUTPUT:
**
** gcuVIDMEM_NODE_PTR * Node
** Pointer to a variable that receives the gcuVIDMEM_NODE union pointer.
*/
gceSTATUS
gckVIDMEM_ConstructVirtual(
IN gckKERNEL Kernel,
IN gctBOOL Contiguous,
IN gctSIZE_T Bytes,
#ifdef __QNXNTO__
IN gctHANDLE Handle,
#endif
OUT gcuVIDMEM_NODE_PTR * Node
)
{
gckOS os;
gceSTATUS status;
gcuVIDMEM_NODE_PTR node = gcvNULL;
gcmkHEADER_ARG("Kernel=0x%x Bytes=%lu", Kernel, Bytes);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
gcmkVERIFY_ARGUMENT(Bytes > 0);
gcmkVERIFY_ARGUMENT(Node != gcvNULL);
#ifdef __QNXNTO__
gcmkVERIFY_ARGUMENT(Handle != gcvNULL);
#endif
/* Extract the gckOS object pointer. */
os = Kernel->os;
gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
/* Allocate an gcuVIDMEM_NODE union. */
gcmkONERROR(
gckOS_Allocate(os, gcmSIZEOF(gcuVIDMEM_NODE), (gctPOINTER *) &node));
/* Initialize gcuVIDMEM_NODE union for virtual memory. */
node->Virtual.kernel = Kernel;
node->Virtual.contiguous = Contiguous;
node->Virtual.locked = 0;
node->Virtual.logical = gcvNULL;
node->Virtual.pageTable = gcvNULL;
node->Virtual.mutex = gcvNULL;
#ifdef __QNXNTO__
node->Virtual.next = gcvNULL;
node->Virtual.unlockPending = gcvFALSE;
node->Virtual.freePending = gcvFALSE;
node->Virtual.handle = Handle;
#else
node->Virtual.pending = gcvFALSE;
#endif
/* Create the mutex. */
gcmkONERROR(
gckOS_CreateMutex(os, &node->Virtual.mutex));
/* Allocate the virtual memory. */
gcmkONERROR(
gckOS_AllocatePagedMemoryEx(os,
node->Virtual.contiguous,
node->Virtual.bytes = Bytes,
&node->Virtual.physical));
#ifdef __QNXNTO__
/* Register. */
gckMMU_InsertNode(Kernel->mmu, node);
#endif
/* Return pointer to the gcuVIDMEM_NODE union. */
*Node = node;
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
"Created virtual node 0x%x for %u bytes @ 0x%x",
node, Bytes, node->Virtual.physical);
/* Success. */
gcmkFOOTER_ARG("*Node=0x%x", *Node);
return gcvSTATUS_OK;
OnError:
/* Roll back. */
if (node != gcvNULL)
{
if (node->Virtual.mutex != gcvNULL)
{
/* Destroy the mutex. */
gcmkVERIFY_OK(gckOS_DeleteMutex(os, node->Virtual.mutex));
}
/* Free the structure. */
gcmkVERIFY_OK(gckOS_Free(os, node));
}
/* Return the status. */
gcmkFOOTER();
return status;
}
/*******************************************************************************
**
** gckCOMMAND_Construct
**
** Construct a new gckCOMMAND object.
**
** INPUT:
**
** gckKERNEL Kernel
** Pointer to an gckKERNEL object.
**
** OUTPUT:
**
** gckCOMMAND * Command
** Pointer to a variable that will hold the pointer to the gckCOMMAND
** object.
*/
gceSTATUS
gckCOMMAND_Construct(
IN gckKERNEL Kernel,
OUT gckCOMMAND * Command
)
{
gckOS os;
gckCOMMAND command = gcvNULL;
gceSTATUS status;
gctINT i;
gcmkHEADER_ARG("Kernel=0x%x", Kernel);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
gcmkVERIFY_ARGUMENT(Command != gcvNULL);
/* Extract the gckOS object. */
os = Kernel->os;
/* Allocate the gckCOMMAND structure. */
gcmkONERROR(
gckOS_Allocate(os,
gcmSIZEOF(struct _gckCOMMAND),
(gctPOINTER *) &command));
/* Initialize the gckCOMMAND object.*/
command->object.type = gcvOBJ_COMMAND;
command->kernel = Kernel;
command->os = os;
command->mutexQueue = gcvNULL;
command->mutexContext = gcvNULL;
/* No command queues created yet. */
command->index = 0;
for (i = 0; i < gcdCOMMAND_QUEUES; ++i)
{
command->queues[i].signal = gcvNULL;
command->queues[i].logical = gcvNULL;
}
/* Get the command buffer requirements. */
gcmkONERROR(
gckHARDWARE_QueryCommandBuffer(Kernel->hardware,
&command->alignment,
&command->reservedHead,
&command->reservedTail));
/* No contexts available yet. */
command->contextCounter = command->currentContext = 0;
/* Create the command queue mutex. */
gcmkONERROR(
gckOS_CreateMutex(os, &command->mutexQueue));
/* Create the context switching mutex. */
gcmkONERROR(
gckOS_CreateMutex(os, &command->mutexContext));
/* Get the page size from teh OS. */
gcmkONERROR(
gckOS_GetPageSize(os, &command->pageSize));
/* Set hardware to pipe 0. */
command->pipeSelect = 0;
/* Pre-allocate the command queues. */
for (i = 0; i < gcdCOMMAND_QUEUES; ++i)
{
gcmkONERROR(
gckOS_AllocateNonPagedMemory(os,
gcvFALSE,
&command->pageSize,
&command->queues[i].physical,
&command->queues[i].logical));
gcmkONERROR(
gckOS_CreateSignal(os, gcvFALSE, &command->queues[i].signal));
gcmkONERROR(
gckOS_Signal(os, command->queues[i].signal, gcvTRUE));
}
/* No command queue in use yet. */
command->index = -1;
command->logical = gcvNULL;
command->newQueue = gcvFALSE;
command->submit = gcvFALSE;
/* Command is not yet running. */
command->running = gcvFALSE;
/* Command queue is idle. */
command->idle = gcvTRUE;
/* Commit stamp is zero. */
command->commitStamp = 0;
/* Return pointer to the gckCOMMAND object. */
*Command = command;
/* Success. */
gcmkFOOTER_ARG("*Command=0x%x", *Command);
return gcvSTATUS_OK;
OnError:
/* Roll back. */
if (command != gcvNULL)
{
if (command->mutexContext != gcvNULL)
{
gcmkVERIFY_OK(gckOS_DeleteMutex(os, command->mutexContext));
}
if (command->mutexQueue != gcvNULL)
{
gcmkVERIFY_OK(gckOS_DeleteMutex(os, command->mutexQueue));
}
for (i = 0; i < gcdCOMMAND_QUEUES; ++i)
{
if (command->queues[i].signal != gcvNULL)
{
gcmkVERIFY_OK(
gckOS_DestroySignal(os, command->queues[i].signal));
}
if (command->queues[i].logical != gcvNULL)
{
gcmkVERIFY_OK(
gckOS_FreeNonPagedMemory(os,
command->pageSize,
command->queues[i].physical,
command->queues[i].logical));
}
}
gcmkVERIFY_OK(gckOS_Free(os, command));
}
/* Return the status. */
gcmkFOOTER();
return status;
}
