Bool ReUseSurface(GALINFOPTR galInfo, PixmapPtr pPixmap, Viv2DPixmapPtr toBeUpdatedpPix)
{
GenericSurfacePtr surf = gcvNULL;
gctUINT alignedWidth, alignedHeight;
gctUINT bytesPerPixel;
alignedWidth = gcmALIGN(pPixmap->drawable.width, WIDTH_ALIGNMENT);
alignedHeight = gcmALIGN(pPixmap->drawable.height, HEIGHT_ALIGNMENT);
bytesPerPixel = BITSTOBYTES(pPixmap->drawable.bitsPerPixel);
/* The same as CreatSurface */
if (bytesPerPixel < 2) {
bytesPerPixel = 2;
}
surf = (GenericSurfacePtr)toBeUpdatedpPix->mVidMemInfo;
if ( surf && surf->mVideoNode.mSizeInBytes >= (alignedWidth * alignedHeight * bytesPerPixel))
{
surf->mTiling = gcvLINEAR;
surf->mAlignedWidth = alignedWidth;
surf->mAlignedHeight = alignedHeight;
surf->mStride = alignedWidth * bytesPerPixel;
surf->mRotation = gcvSURF_0_DEGREE;
surf->mLogicalAddr = surf->mVideoNode.mLogicalAddr;
surf->mIsWrapped = gcvFALSE;
if ( surf->mData )
pixman_image_unref( (pixman_image_t *)surf->mData );
surf->mData = gcvNULL;
TRACE_EXIT(TRUE);
}
TRACE_EXIT(FALSE);
}
/*Creating and Destroying Functions*/
Bool CreateSurface(GALINFOPTR galInfo, PixmapPtr pPixmap, Viv2DPixmapPtr pPix) {
GenericSurfacePtr surf = gcvNULL;
VIVGPUPtr gpuctx = (VIVGPUPtr) galInfo->mGpu;
gctUINT alignedWidth, alignedHeight;
gctUINT bytesPerPixel;
alignedWidth = gcmALIGN(pPixmap->drawable.width, WIDTH_ALIGNMENT);
alignedHeight = gcmALIGN(pPixmap->drawable.height, HEIGHT_ALIGNMENT);
bytesPerPixel = BITSTOBYTES(pPixmap->drawable.bitsPerPixel);
/*QUICK FIX*/
if (bytesPerPixel < 2) {
bytesPerPixel = 2;
}
if (!VIV2DGPUSurfaceAlloc(gpuctx, alignedWidth, alignedHeight, bytesPerPixel, &surf)) {
TRACE_ERROR("Surface Creation Error\n");
TRACE_EXIT(FALSE);
}
pPix->mVidMemInfo = surf;
TRACE_EXIT(TRUE);
}
Bool WrapSurface(PixmapPtr pPixmap, void * logical, unsigned int physical, Viv2DPixmapPtr pPix) {
gceSTATUS status = gcvSTATUS_OK;
gctUINT alignedWidth, alignedHeight;
gctUINT bytesPerPixel;
GenericSurfacePtr surf = gcvNULL;
gctPOINTER mHandle = gcvNULL;
status = gcoOS_Allocate(gcvNULL, sizeof (GenericSurface), &mHandle);
if (status != gcvSTATUS_OK) {
TRACE_ERROR("Unable to allocate generic surface\n");
TRACE_EXIT(FALSE);
}
memset(mHandle, 0, sizeof (GenericSurface));
surf = (GenericSurfacePtr) mHandle;
alignedWidth = gcmALIGN(pPixmap->drawable.width, WIDTH_ALIGNMENT);
alignedHeight = gcmALIGN(pPixmap->drawable.height, HEIGHT_ALIGNMENT);
bytesPerPixel = BITSTOBYTES(pPixmap->drawable.bitsPerPixel);
surf->mVideoNode.mSizeInBytes = alignedWidth * bytesPerPixel * alignedHeight;
surf->mVideoNode.mPool = gcvPOOL_USER;
surf->mVideoNode.mPhysicalAddr = physical;
surf->mVideoNode.mLogicalAddr = (gctPOINTER) logical;
surf->mBytesPerPixel = bytesPerPixel;
surf->mTiling = gcvLINEAR;
surf->mAlignedWidth = alignedWidth;
surf->mAlignedHeight = alignedHeight;
surf->mStride = alignedWidth * bytesPerPixel;
surf->mRotation = gcvSURF_0_DEGREE;
surf->mLogicalAddr = surf->mVideoNode.mLogicalAddr;
surf->mIsWrapped = gcvTRUE;
pPix->mVidMemInfo = surf;
TRACE_EXIT(TRUE);
}
gceSTATUS
gcfDumpData(
IN gcoOS Os,
IN gctSTRING Tag,
IN gctPOINTER Logical,
IN gctSIZE_T Bytes
)
{
gctUINT32_PTR ptr = (gctUINT32_PTR) Logical;
gctSIZE_T bytes = gcmALIGN(Bytes, 4);
if (!setDumpFlag)
return gcvSTATUS_OK;
while (bytes >= 16)
{
gcmDUMP(Os,
" 0x%08X 0x%08X 0x%08X 0x%08X",
ptr[0], ptr[1], ptr[2], ptr[3]);
ptr += 4;
bytes -= 16;
}
switch (bytes)
{
case 12:
gcmDUMP(Os, " 0x%08X 0x%08X 0x%08X", ptr[0], ptr[1], ptr[2]);
break;
case 8:
gcmDUMP(Os, " 0x%08X 0x%08X", ptr[0], ptr[1]);
break;
case 4:
gcmDUMP(Os, " 0x%08X", ptr[0]);
break;
}
gcmDUMP(Os, "] -- %s", Tag);
return gcvSTATUS_OK;
}
/*******************************************************************************
**
** gckHEAP_Allocate
**
** Allocate data from the heap.
**
** INPUT:
**
** gckHEAP Heap
** Pointer to a gckHEAP object.
**
** IN gctSIZE_T Bytes
** Number of byte to allocate.
**
** OUTPUT:
**
** gctPOINTER * Memory
** Pointer to a variable that will hold the address of the allocated
** memory.
*/
gceSTATUS
gckHEAP_Allocate(
IN gckHEAP Heap,
IN gctSIZE_T Bytes,
OUT gctPOINTER * Memory
)
{
gctBOOL acquired = gcvFALSE;
gcskHEAP_PTR heap;
gceSTATUS status;
gctSIZE_T bytes;
gcskNODE_PTR node, used, prevFree = gcvNULL;
gctPOINTER memory = gcvNULL;
gcmkHEADER_ARG("Heap=0x%x Bytes=%lu", Heap, Bytes);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
gcmkVERIFY_ARGUMENT(Bytes > 0);
gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
/* Determine number of bytes required for a node. */
bytes = gcmALIGN(Bytes + gcmSIZEOF(gcskNODE), 8);
/* Acquire the mutex. */
gcmkONERROR(
gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
acquired = gcvTRUE;
/* Check if this allocation is bigger than the default allocation size. */
if (bytes > Heap->allocationSize - gcmSIZEOF(gcskHEAP) - gcmSIZEOF(gcskNODE))
{
/* Adjust allocation size. */
Heap->allocationSize = bytes * 2;
}
else if (Heap->heap != gcvNULL)
{
gctINT i;
/* 2 retries, since we might need to compact. */
for (i = 0; i < 2; ++i)
{
/* Walk all the heaps. */
for (heap = Heap->heap; heap != gcvNULL; heap = heap->next)
{
/* Check if this heap has enough bytes to hold the request. */
if (bytes <= heap->size - gcmSIZEOF(gcskNODE))
{
prevFree = gcvNULL;
/* Walk the chain of free nodes. */
for (node = heap->freeList;
node != gcvNULL;
node = node->next
)
{
gcmkASSERT(node->next != gcdIN_USE);
/* Check if this free node has enough bytes. */
if (node->bytes >= bytes)
{
/* Use the node. */
goto UseNode;
}
/* Save current free node for linked list management. */
prevFree = node;
}
}
}
if (i == 0)
{
/* Compact the heap. */
gcmkVERIFY_OK(_CompactKernelHeap(Heap));
#if gcmIS_DEBUG(gcdDEBUG_CODE)
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"===== KERNEL HEAP =====");
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Number of allocations : %12u",
Heap->allocCount);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Number of bytes allocated : %12llu",
Heap->allocBytes);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Maximum allocation size : %12llu",
Heap->allocBytesMax);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Total number of bytes allocated : %12llu",
Heap->allocBytesTotal);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Number of heaps : %12u",
Heap->heapCount);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Heap memory in bytes : %12llu",
Heap->heapMemory);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Maximum number of heaps : %12u",
Heap->heapCountMax);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
"Maximum heap memory in bytes : %12llu",
Heap->heapMemoryMax);
#endif
}
}
}
/* Release the mutex. */
gcmkONERROR(
gckOS_ReleaseMutex(Heap->os, Heap->mutex));
acquired = gcvFALSE;
/* Allocate a new heap. */
gcmkONERROR(
gckOS_AllocateMemory(Heap->os,
Heap->allocationSize,
&memory));
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HEAP,
"Allocated heap 0x%x (%lu bytes)",
memory, Heap->allocationSize);
/* Acquire the mutex. */
gcmkONERROR(
gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
acquired = gcvTRUE;
/* Use the allocated memory as the heap. */
heap = (gcskHEAP_PTR) memory;
/* Insert this heap to the head of the chain. */
heap->next = Heap->heap;
heap->prev = gcvNULL;
heap->size = Heap->allocationSize - gcmSIZEOF(gcskHEAP);
if (heap->next != gcvNULL)
{
heap->next->prev = heap;
}
Heap->heap = heap;
/* Mark the end of the heap. */
node = (gcskNODE_PTR) ( (gctUINT8_PTR) heap
+ Heap->allocationSize
- gcmSIZEOF(gcskNODE)
);
node->bytes = 0;
node->next = gcvNULL;
/* Create a free list. */
node = (gcskNODE_PTR) (heap + 1);
heap->freeList = node;
/* Initialize the free list. */
node->bytes = heap->size - gcmSIZEOF(gcskNODE);
node->next = gcvNULL;
/* No previous free. */
prevFree = gcvNULL;
#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
/* Update profiling. */
Heap->heapCount += 1;
Heap->heapMemory += Heap->allocationSize;
if (Heap->heapCount > Heap->heapCountMax)
{
Heap->heapCountMax = Heap->heapCount;
}
if (Heap->heapMemory > Heap->heapMemoryMax)
{
Heap->heapMemoryMax = Heap->heapMemory;
}
#endif
UseNode:
/* Verify some stuff. */
gcmkASSERT(heap != gcvNULL);
gcmkASSERT(node != gcvNULL);
gcmkASSERT(node->bytes >= bytes);
if (heap->prev != gcvNULL)
{
/* Unlink the heap from the linked list. */
heap->prev->next = heap->next;
if (heap->next != gcvNULL)
{
heap->next->prev = heap->prev;
}
/* Move the heap to the front of the list. */
heap->next = Heap->heap;
heap->prev = gcvNULL;
Heap->heap = heap;
heap->next->prev = heap;
}
/* Check if there is enough free space left after usage for another free
** node. */
if (node->bytes - bytes >= gcmSIZEOF(gcskNODE))
{
/* Allocated used space from the back of the free list. */
used = (gcskNODE_PTR) ((gctUINT8_PTR) node + node->bytes - bytes);
/* Adjust the number of free bytes. */
node->bytes -= bytes;
gcmkASSERT(node->bytes >= gcmSIZEOF(gcskNODE));
}
else
{
/* Remove this free list from the chain. */
if (prevFree == gcvNULL)
{
heap->freeList = node->next;
}
else
{
prevFree->next = node->next;
}
/* Consume the entire free node. */
used = (gcskNODE_PTR) node;
bytes = node->bytes;
}
/* Mark node as used. */
used->bytes = bytes;
used->next = gcdIN_USE;
#if gcmIS_DEBUG(gcdDEBUG_CODE)
used->timeStamp = ++Heap->timeStamp;
#endif
#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
/* Update profile counters. */
Heap->allocCount += 1;
Heap->allocBytes += bytes;
Heap->allocBytesMax = gcmMAX(Heap->allocBytes, Heap->allocBytesMax);
Heap->allocBytesTotal += bytes;
#endif
/* Release the mutex. */
gcmkVERIFY_OK(
gckOS_ReleaseMutex(Heap->os, Heap->mutex));
/* Return pointer to memory. */
*Memory = used + 1;
/* Success. */
gcmkFOOTER_ARG("*Memory=0x%x", *Memory);
return gcvSTATUS_OK;
OnError:
if (acquired)
{
/* Release the mutex. */
gcmkVERIFY_OK(
gckOS_ReleaseMutex(Heap->os, Heap->mutex));
}
if (memory != gcvNULL)
{
/* Free the heap memory. */
gckOS_FreeMemory(Heap->os, memory);
}
/* Return the status. */
gcmkFOOTER();
return status;
}
static gctSIZE_T
_MeasureState(
IN gcoVGHARDWARE Hardware,
IN gcsVGCONTEXT_INIT_PTR InitInfo,
IN gctSIZE_T BufferIndex,
IN gctUINT32 StateIndex,
IN gctUINT32 ResetValue,
IN gctSIZE_T ValueCount
)
{
gctSIZE_T result;
gctSIZE_T mapLast;
/* End of buffer alignement? */
if (ValueCount == 0)
{
/* Save information for this LoadState. */
InitInfo->bufferIndex = gcmALIGN(BufferIndex, 2);
/* Return end of buffer. */
result = 0;
}
else
{
/* See if we can append this state to the previous one. */
if (StateIndex == InitInfo->stateIndex)
{
/* Update the state index. */
InitInfo->stateIndex += ValueCount;
/* Return number of slots required. */
result = ValueCount;
}
else
{
/* Determine if we need alignment. */
gctSIZE_T align = BufferIndex & 1;
/* Save information for this LoadState. */
InitInfo->bufferIndex = BufferIndex + align;
InitInfo->stateIndex = StateIndex + ValueCount;
/* Return number of slots required. */
result = align + 1 + ValueCount;
}
/* Determine the new map size. */
mapLast = StateIndex + ValueCount - 1;
/* Update the map dimensions as necessary. */
#ifndef __QNXNTO__
if (mapLast > Hardware->context.mapLast)
{
Hardware->context.mapLast = mapLast;
}
if (StateIndex < Hardware->context.mapFirst)
{
Hardware->context.mapFirst = StateIndex;
}
#else
if (mapLast > Hardware->pContext->mapLast)
{
Hardware->pContext->mapLast = mapLast;
}
if (StateIndex < Hardware->pContext->mapFirst)
{
Hardware->pContext->mapFirst = StateIndex;
}
#endif
}
/* Return size for load state. */
return result;
}
/*******************************************************************************
**
** gcoBUFFER_Commit
**
** Commit the command buffer to the hardware.
**
** INPUT:
**
** gcoBUFFER Buffer
** Pointer to a gcoBUFFER object.
**
** gcePIPE_SELECT CurrentPipe
** Current graphics pipe.
**
** gcsSTATE_DELTA_PTR StateDelta
** Pointer to the state delta.
**
** gcoQUEUE Queue
** Pointer to a gcoQUEUE object.
**
** OUTPUT:
**
** Nothing.
*/
gceSTATUS
gcoBUFFER_Commit(
IN gcoBUFFER Buffer,
IN gcePIPE_SELECT CurrentPipe,
IN gcsSTATE_DELTA_PTR StateDelta,
IN gcoQUEUE Queue
)
{
gcsHAL_INTERFACE iface;
gceSTATUS status;
gcoCMDBUF current;
gcmHEADER_ARG("Buffer=0x%x Queue=0x%x",
Buffer, Queue);
/* Verify the arguments. */
gcmVERIFY_OBJECT(Buffer, gcvOBJ_BUFFER);
gcmVERIFY_OBJECT(Queue, gcvOBJ_QUEUE);
/* Grab current command buffer. */
current = Buffer->currentCommandBuffer;
if (current == gcvNULL)
{
/* No command buffer, done. */
gcmFOOTER_NO();
return gcvSTATUS_OK;
}
if (current->offset - current->startOffset <= Buffer->info.reservedHead)
{
/* Commit the event queue. */
status = gcoQUEUE_Commit(Queue);
gcmFOOTER();
return status;
}
/* Make sure the tail got aligned properly. */
current->offset = gcmALIGN(current->offset, Buffer->info.alignment);
if (gcPLS.hal->dump != gcvNULL)
{
/* Dump the command buffer. */
gcmVERIFY_OK(
gcoDUMP_DumpData(gcPLS.hal->dump,
gcvTAG_COMMAND,
0,
current->offset
- current->startOffset
- Buffer->info.reservedHead,
(gctUINT8_PTR) current->logical
+ current->startOffset
+ Buffer->info.reservedHead));
}
/* The current pipe becomes the exit pipe for the current command buffer. */
current->exitPipe = CurrentPipe;
/* Send command and context buffer to hardware. */
iface.command = gcvHAL_COMMIT;
iface.u.Commit.context =
#ifndef VIVANTE_NO_3D
(current->using2D && !current->using3D) ? gcvNULL : Buffer->context;
#else
gcvNULL;
#endif
iface.u.Commit.commandBuffer = current;
iface.u.Commit.delta = StateDelta;
iface.u.Commit.queue = Queue->head;
/* Call kernel service. */
gcmONERROR(
gcoOS_DeviceControl(gcvNULL,
IOCTL_GCHAL_INTERFACE,
&iface, gcmSIZEOF(iface),
&iface, gcmSIZEOF(iface)));
gcmONERROR(iface.status);
/* Free the event queue. */
gcmONERROR(gcoQUEUE_Free(Queue));
/* Advance the offset for next commit. */
current->startOffset = current->offset + Buffer->info.reservedTail;
if (current->bytes - current->startOffset > Buffer->totalReserved)
{
/* Adjust buffer offset and size. */
current->offset = current->startOffset + Buffer->info.reservedHead;
current->free = current->bytes - current->offset
- Buffer->info.alignment
- Buffer->info.reservedTail;
}
else
{
/* Buffer is full. */
current->startOffset = current->bytes;
current->offset = current->bytes;
current->free = 0;
}
/* The exit pipe becomes the entry pipe for the next command buffer. */
current->entryPipe = current->exitPipe;
#if gcdSECURE_USER
/* Reset the state array tail. */
current->hintArrayTail = current->hintArray;
#endif
/* Reset usage flags. */
current->using2D = gcvFALSE;
current->using3D = gcvFALSE;
current->usingFilterBlit = gcvFALSE;
current->usingPalette = gcvFALSE;
/* Success. */
gcmFOOTER_NO();
return gcvSTATUS_OK;
OnError:
/* Return the status. */
gcmFOOTER();
return status;
}
/*******************************************************************************
**
** gcoBUFFER_Reserve
**
** Reserve a number of bytes in the buffer.
**
** INPUT:
**
** gcoBUFFER Buffer
** Pointer to an gcoBUFFER object.
**
** gctSIZE_T Bytes
** Number of bytes to reserve.
**
** gctBOOL Aligned
** gcvTRUE if the data needs to be aligned to 64-bit.
**
** OUTPUT:
**
** gctUINT32_PTR ** AddressHints
** Pointer to a variable that receives the current position in the
** state hint array. gcvNULL is allowed.
**
** gctPOINTER * Memory
** Pointer to a variable that will hold the address of location in the
** buffer that has been reserved.
*/
gceSTATUS
gcoBUFFER_Reserve(
IN gcoBUFFER Buffer,
IN gctSIZE_T Bytes,
IN gctBOOL Aligned,
OUT gcoCMDBUF * Reserve
)
{
gceSTATUS status = gcvSTATUS_OK;
gcoCMDBUF current;
gctSIZE_T alignBytes, bytes;
gctUINT offset;
gcmHEADER_ARG("Buffer=0x%x Bytes=%lu Aligned=%d Reserve=0x%x",
Buffer, Bytes, Aligned, Reserve);
/* Verify the arguments. */
gcmVERIFY_OBJECT(Buffer, gcvOBJ_BUFFER);
gcmDEBUG_VERIFY_ARGUMENT(Reserve != gcvNULL);
/* Get the current command buffer. */
current = Buffer->currentCommandBuffer;
/* Compute the number of aligned bytes. */
alignBytes = Aligned
? ( gcmALIGN(current->offset, Buffer->info.alignment)
- current->offset
)
: 0;
/* Compute the number of required bytes. */
bytes = Bytes + alignBytes;
if (bytes > current->free)
{
gcsHAL_INTERFACE iface;
if (bytes > Buffer->maxSize - Buffer->totalReserved)
{
/* This just won't fit! */
gcmFATAL("FATAL: Command of %lu bytes is too big!", Bytes);
gcmONERROR(gcvSTATUS_OUT_OF_MEMORY);
}
/* Sent event to signal when command buffer completes. */
iface.command = gcvHAL_SIGNAL;
iface.u.Signal.signal = Buffer->signal
[Buffer->currentCommandBufferIndex];
iface.u.Signal.auxSignal = gcvNULL;
iface.u.Signal.process = gcoOS_GetCurrentProcessID();
iface.u.Signal.fromWhere = gcvKERNEL_COMMAND;
/* Send event. */
gcmONERROR(
gcoHARDWARE_CallEvent(&iface));
/* Commit current command buffer. */
gcmONERROR(
gcoHARDWARE_Commit());
/* Grab a new command buffer. */
gcmONERROR(
gcoBUFFER_GetCMDBUF(Buffer));
/* Get the pointer. */
current = Buffer->currentCommandBuffer;
/* Calculate total bytes again. */
alignBytes = 0;
bytes = Bytes;
}
gcmASSERT(current != gcvNULL);
gcmASSERT(bytes <= current->free);
/* Determine the data offset. */
offset = current->offset + alignBytes;
/* Update the last reserved location. */
current->lastReserve = (gctUINT8_PTR) current->logical + offset;
current->lastOffset = offset;
/* Adjust command buffer size. */
current->offset += bytes;
current->free -= bytes;
/* Set the result. */
* Reserve = current;
/* Success. */
gcmFOOTER();
return gcvSTATUS_OK;
OnError:
/* Return the status. */
gcmFOOTER();
return status;
}
/*******************************************************************************
**
** 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;
}
/*******************************************************************************
**
** gckKERNEL_Dispatch
**
** Dispatch a command received from the user HAL layer.
**
** INPUT:
**
** gckKERNEL Kernel
** Pointer to an gckKERNEL object.
**
** gcsHAL_INTERFACE * Interface
** Pointer to a gcsHAL_INTERFACE structure that defines the command to
** be dispatched.
**
** OUTPUT:
**
** gcsHAL_INTERFACE * Interface
** Pointer to a gcsHAL_INTERFACE structure that receives any data to be
** returned.
*/
gceSTATUS gckVGKERNEL_Dispatch(
IN gckKERNEL Kernel,
IN gctBOOL FromUser,
IN OUT gcsHAL_INTERFACE * Interface
)
{
gceSTATUS status;
gcsHAL_INTERFACE * kernelInterface = Interface;
gcuVIDMEM_NODE_PTR node;
gctUINT32 processID;
gcmkHEADER_ARG("Kernel=0x%x Interface=0x%x ", Kernel, Interface);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
gcmkVERIFY_ARGUMENT(Interface != gcvNULL);
gcmkONERROR(gckOS_GetProcessID(&processID));
/* Dispatch on command. */
switch (Interface->command)
{
case gcvHAL_QUERY_VIDEO_MEMORY:
/* Query video memory size. */
gcmkERR_BREAK(gckKERNEL_QueryVideoMemory(
Kernel, kernelInterface
));
break;
case gcvHAL_QUERY_CHIP_IDENTITY:
/* Query chip identity. */
gcmkERR_BREAK(gckVGHARDWARE_QueryChipIdentity(
Kernel->vg->hardware,
&kernelInterface->u.QueryChipIdentity.chipModel,
&kernelInterface->u.QueryChipIdentity.chipRevision,
&kernelInterface->u.QueryChipIdentity.chipFeatures,
&kernelInterface->u.QueryChipIdentity.chipMinorFeatures,
&kernelInterface->u.QueryChipIdentity.chipMinorFeatures2
));
break;
case gcvHAL_QUERY_COMMAND_BUFFER:
/* Query command buffer information. */
gcmkERR_BREAK(gckKERNEL_QueryCommandBuffer(
Kernel,
&kernelInterface->u.QueryCommandBuffer.information
));
break;
case gcvHAL_ALLOCATE_NON_PAGED_MEMORY:
/* Allocate non-paged memory. */
gcmkERR_BREAK(gckOS_AllocateContiguous(
Kernel->os,
gcvTRUE,
&kernelInterface->u.AllocateNonPagedMemory.bytes,
&kernelInterface->u.AllocateNonPagedMemory.physical,
&kernelInterface->u.AllocateNonPagedMemory.logical
));
break;
case gcvHAL_FREE_NON_PAGED_MEMORY:
/* Unmap user logical out of physical memory first. */
gcmkERR_BREAK(gckOS_UnmapUserLogical(
Kernel->os,
kernelInterface->u.AllocateNonPagedMemory.physical,
kernelInterface->u.AllocateNonPagedMemory.bytes,
kernelInterface->u.AllocateNonPagedMemory.logical
));
/* Free non-paged memory. */
gcmkERR_BREAK(gckOS_FreeNonPagedMemory(
Kernel->os,
kernelInterface->u.AllocateNonPagedMemory.bytes,
kernelInterface->u.AllocateNonPagedMemory.physical,
kernelInterface->u.AllocateNonPagedMemory.logical
));
break;
case gcvHAL_ALLOCATE_CONTIGUOUS_MEMORY:
/* Allocate contiguous memory. */
gcmkERR_BREAK(gckOS_AllocateContiguous(
Kernel->os,
gcvTRUE,
&kernelInterface->u.AllocateNonPagedMemory.bytes,
&kernelInterface->u.AllocateNonPagedMemory.physical,
&kernelInterface->u.AllocateNonPagedMemory.logical
));
break;
case gcvHAL_FREE_CONTIGUOUS_MEMORY:
/* Unmap user logical out of physical memory first. */
gcmkERR_BREAK(gckOS_UnmapUserLogical(
Kernel->os,
kernelInterface->u.AllocateNonPagedMemory.physical,
kernelInterface->u.AllocateNonPagedMemory.bytes,
kernelInterface->u.AllocateNonPagedMemory.logical
));
/* Free contiguous memory. */
gcmkERR_BREAK(gckOS_FreeContiguous(
Kernel->os,
kernelInterface->u.AllocateNonPagedMemory.physical,
kernelInterface->u.AllocateNonPagedMemory.logical,
kernelInterface->u.AllocateNonPagedMemory.bytes
));
break;
case gcvHAL_ALLOCATE_VIDEO_MEMORY:
{
gctSIZE_T bytes;
gctUINT32 bitsPerPixel;
gctUINT32 bits;
/* Align width and height to tiles. */
gcmkERR_BREAK(gckVGHARDWARE_AlignToTile(
Kernel->vg->hardware,
kernelInterface->u.AllocateVideoMemory.type,
&kernelInterface->u.AllocateVideoMemory.width,
&kernelInterface->u.AllocateVideoMemory.height
));
/* Convert format into bytes per pixel and bytes per tile. */
gcmkERR_BREAK(gckVGHARDWARE_ConvertFormat(
Kernel->vg->hardware,
kernelInterface->u.AllocateVideoMemory.format,
&bitsPerPixel,
gcvNULL
));
/* Compute number of bits for the allocation. */
bits
= kernelInterface->u.AllocateVideoMemory.width
* kernelInterface->u.AllocateVideoMemory.height
* kernelInterface->u.AllocateVideoMemory.depth
* bitsPerPixel;
/* Compute number of bytes for the allocation. */
bytes = gcmALIGN(bits, 8) / 8;
/* Allocate memory. */
gcmkERR_BREAK(gckKERNEL_AllocateLinearMemory(
Kernel,
&kernelInterface->u.AllocateVideoMemory.pool,
bytes,
64,
kernelInterface->u.AllocateVideoMemory.type,
&kernelInterface->u.AllocateVideoMemory.node
));
}
break;
case gcvHAL_ALLOCATE_LINEAR_VIDEO_MEMORY:
/* Allocate memory. */
gcmkERR_BREAK(gckKERNEL_AllocateLinearMemory(
Kernel,
&kernelInterface->u.AllocateLinearVideoMemory.pool,
kernelInterface->u.AllocateLinearVideoMemory.bytes,
kernelInterface->u.AllocateLinearVideoMemory.alignment,
kernelInterface->u.AllocateLinearVideoMemory.type,
&kernelInterface->u.AllocateLinearVideoMemory.node
));
gcmkERR_BREAK(gckKERNEL_AddProcessDB(Kernel,
processID, gcvDB_VIDEO_MEMORY,
Interface->u.AllocateLinearVideoMemory.node,
gcvNULL,
kernelInterface->u.AllocateLinearVideoMemory.bytes
));
break;
case gcvHAL_FREE_VIDEO_MEMORY:
#ifdef __QNXNTO__
/* Unmap the video memory */
node = Interface->u.FreeVideoMemory.node;
if ((node->VidMem.memory->object.type == gcvOBJ_VIDMEM) &&
(node->VidMem.logical != gcvNULL))
{
gckKERNEL_UnmapVideoMemory(Kernel,
node->VidMem.logical,
processID,
node->VidMem.bytes);
node->VidMem.logical = gcvNULL;
}
#endif /* __QNXNTO__ */
/* Free video memory. */
gcmkERR_BREAK(gckVIDMEM_Free(
Interface->u.FreeVideoMemory.node
));
gcmkERR_BREAK(gckKERNEL_RemoveProcessDB(
Kernel,
processID, gcvDB_VIDEO_MEMORY,
Interface->u.FreeVideoMemory.node
));
break;
case gcvHAL_MAP_MEMORY:
/* Map memory. */
gcmkERR_BREAK(gckKERNEL_MapMemory(
Kernel,
kernelInterface->u.MapMemory.physical,
kernelInterface->u.MapMemory.bytes,
&kernelInterface->u.MapMemory.logical
));
break;
case gcvHAL_UNMAP_MEMORY:
/* Unmap memory. */
gcmkERR_BREAK(gckKERNEL_UnmapMemory(
Kernel,
kernelInterface->u.MapMemory.physical,
kernelInterface->u.MapMemory.bytes,
kernelInterface->u.MapMemory.logical
));
break;
case gcvHAL_MAP_USER_MEMORY:
/* Map user memory to DMA. */
gcmkERR_BREAK(gckOS_MapUserMemory(
Kernel->os,
gcvCORE_VG,
kernelInterface->u.MapUserMemory.memory,
kernelInterface->u.MapUserMemory.physical,
kernelInterface->u.MapUserMemory.size,
&kernelInterface->u.MapUserMemory.info,
&kernelInterface->u.MapUserMemory.address
));
break;
case gcvHAL_UNMAP_USER_MEMORY:
/* Unmap user memory. */
gcmkERR_BREAK(gckOS_UnmapUserMemory(
Kernel->os,
gcvCORE_VG,
kernelInterface->u.UnmapUserMemory.memory,
kernelInterface->u.UnmapUserMemory.size,
kernelInterface->u.UnmapUserMemory.info,
kernelInterface->u.UnmapUserMemory.address
));
break;
case gcvHAL_LOCK_VIDEO_MEMORY:
/* Lock video memory. */
gcmkERR_BREAK(
gckVIDMEM_Lock(Kernel,
Interface->u.LockVideoMemory.node,
gcvFALSE,
&Interface->u.LockVideoMemory.address));
node = Interface->u.LockVideoMemory.node;
if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
{
/* Map video memory address into user space. */
#ifdef __QNXNTO__
if (node->VidMem.logical == gcvNULL)
{
gcmkONERROR(
gckKERNEL_MapVideoMemory(Kernel,
FromUser,
Interface->u.LockVideoMemory.address,
processID,
node->VidMem.bytes,
&node->VidMem.logical));
}
Interface->u.LockVideoMemory.memory = node->VidMem.logical;
#else
gcmkERR_BREAK(
gckKERNEL_MapVideoMemoryEx(Kernel,
gcvCORE_VG,
FromUser,
Interface->u.LockVideoMemory.address,
&Interface->u.LockVideoMemory.memory));
#endif
}
else
{
Interface->u.LockVideoMemory.memory = node->Virtual.logical;
/* Success. */
status = gcvSTATUS_OK;
}
#if gcdSECURE_USER
/* Return logical address as physical address. */
Interface->u.LockVideoMemory.address =
gcmPTR2INT(Interface->u.LockVideoMemory.memory);
#endif
gcmkERR_BREAK(
gckKERNEL_AddProcessDB(Kernel,
processID, gcvDB_VIDEO_MEMORY_LOCKED,
Interface->u.LockVideoMemory.node,
gcvNULL,
0));
break;
case gcvHAL_UNLOCK_VIDEO_MEMORY:
/* Unlock video memory. */
node = Interface->u.UnlockVideoMemory.node;
#if gcdSECURE_USER
/* Save node information before it disappears. */
if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
{
logical = gcvNULL;
bytes = 0;
}
else
{
logical = node->Virtual.logical;
bytes = node->Virtual.bytes;
}
#endif
/* Unlock video memory. */
gcmkERR_BREAK(
gckVIDMEM_Unlock(Kernel,
node,
Interface->u.UnlockVideoMemory.type,
&Interface->u.UnlockVideoMemory.asynchroneous,
gcvFALSE));
#if gcdSECURE_USER
/* Flush the translation cache for virtual surfaces. */
if (logical != gcvNULL)
{
gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(Kernel,
cache,
logical,
bytes));
}
#endif
if (Interface->u.UnlockVideoMemory.asynchroneous == gcvFALSE)
{
/* There isn't a event to unlock this node, remove record now */
gcmkERR_BREAK(
gckKERNEL_RemoveProcessDB(Kernel,
processID, gcvDB_VIDEO_MEMORY_LOCKED,
Interface->u.UnlockVideoMemory.node));
}
break;
case gcvHAL_USER_SIGNAL:
#if !USE_NEW_LINUX_SIGNAL
/* Dispatch depends on the user signal subcommands. */
switch(Interface->u.UserSignal.command)
{
case gcvUSER_SIGNAL_CREATE:
/* Create a signal used in the user space. */
gcmkERR_BREAK(
gckOS_CreateUserSignal(Kernel->os,
Interface->u.UserSignal.manualReset,
&Interface->u.UserSignal.id));
gcmkVERIFY_OK(
gckKERNEL_AddProcessDB(Kernel,
processID, gcvDB_SIGNAL,
gcmINT2PTR(Interface->u.UserSignal.id),
gcvNULL,
0));
break;
case gcvUSER_SIGNAL_DESTROY:
/* Destroy the signal. */
gcmkERR_BREAK(
gckOS_DestroyUserSignal(Kernel->os,
Interface->u.UserSignal.id));
gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
Kernel,
processID, gcvDB_SIGNAL,
gcmINT2PTR(Interface->u.UserSignal.id)));
break;
case gcvUSER_SIGNAL_SIGNAL:
/* Signal the signal. */
gcmkERR_BREAK(
gckOS_SignalUserSignal(Kernel->os,
Interface->u.UserSignal.id,
Interface->u.UserSignal.state));
break;
case gcvUSER_SIGNAL_WAIT:
/* Wait on the signal. */
status = gckOS_WaitUserSignal(Kernel->os,
Interface->u.UserSignal.id,
Interface->u.UserSignal.wait);
break;
default:
/* Invalid user signal command. */
gcmkERR_BREAK(gcvSTATUS_INVALID_ARGUMENT);
}
#endif
break;
case gcvHAL_COMMIT:
/* Commit a command and context buffer. */
gcmkERR_BREAK(gckVGCOMMAND_Commit(
Kernel->vg->command,
kernelInterface->u.VGCommit.context,
kernelInterface->u.VGCommit.queue,
kernelInterface->u.VGCommit.entryCount,
kernelInterface->u.VGCommit.taskTable
));
break;
case gcvHAL_VERSION:
kernelInterface->u.Version.major = gcvVERSION_MAJOR;
kernelInterface->u.Version.minor = gcvVERSION_MINOR;
kernelInterface->u.Version.patch = gcvVERSION_PATCH;
kernelInterface->u.Version.build = gcvVERSION_BUILD;
status = gcvSTATUS_OK;
break;
case gcvHAL_GET_BASE_ADDRESS:
/* Get base address. */
gcmkERR_BREAK(
gckOS_GetBaseAddress(Kernel->os,
&kernelInterface->u.GetBaseAddress.baseAddress));
break;
default:
/* Invalid command. */
status = gcvSTATUS_INVALID_ARGUMENT;
}
OnError:
/* Save status. */
kernelInterface->status = status;
gcmkFOOTER();
/* Return the status. */
return status;
}
return gcvSTATUS_OK;
}
gceSTATUS
gcfDumpBuffer(
IN gcoOS Os,
IN gctSTRING Tag,
IN gctUINT32 Physical,
IN gctPOINTER Logical,
IN gctUINT32 Offset,
IN gctSIZE_T Bytes
)
{
gctUINT32_PTR ptr = (gctUINT32_PTR) Logical + (Offset >> 2);
gctSIZE_T bytes = gcmALIGN(Bytes + (Offset & 3), 4);
if (!setDumpFlag)
return gcvSTATUS_OK;
#if gcdDUMP_COMMAND
static gctPOINTER dumpLock;
if (dumpLock == gcvNULL)
{
/* TODO: Delete this mutex somehow. */
gcmVERIFY_OK(gcoOS_CreateMutex(Os, &dumpLock));
}
/* Acquire mutex to avoid multiple threads dumping data
at the same time. */
gceSTATUS glfCreateNamedObject(
IN glsCONTEXT_PTR Context,
IN glsNAMEDOBJECTLIST_PTR List,
IN gctUINT32 Name,
IN glfNAMEDOBJECTDESTRUCTOR ObjectDestructor,
OUT glsNAMEDOBJECT_PTR * ObjectWrapper
)
{
gceSTATUS status = gcvSTATUS_OK;
gcmHEADER_ARG("Context=0x%x List=0x%x Name=%u ObjectDestructor=0x%x ObjectWrapper=0x%x",
Context, List, Name, ObjectDestructor, ObjectWrapper);
do
{
glsNAMEDOBJECT_PTR wrapper;
glsNAMEDOBJECT_PTR* entry;
gctUINT32 index;
/* Are there available wrappers in the free list? */
wrapper = List->freeList;
if ((Name == 0) && (wrapper != gcvNULL))
{
/* Remove the first wrapper from the list. */
List->freeList = wrapper->next;
}
/* Create a new wrapper. */
else
{
/* Create a new wrapper. */
wrapper = gcvNULL;
/* Generate a name if not specified. */
if (Name == 0)
{
if (List->nextName == 0)
{
/* No more names. */
status = gcvSTATUS_OUT_OF_RESOURCES;
break;
}
Name = List->nextName++;
}
else if (Name > List->nextName)
{
/* Name for the object has been explicitly specified by
the application and it is greater then the next automatic
would-be name. Update the next name with the value from
the application; this creates a hole in the name range. */
List->nextName = Name + 1;
}
else if (List->freeList != gcvNULL)
{
/* Name for the object has been explicitly specified by
the application and it is less then or equal to the next
automatic would-be name. This means the name most likely
lives inside the free list. */
if (List->freeList->name == Name)
{
wrapper = List->freeList;
List->freeList = wrapper->next;
}
else
{
glsNAMEDOBJECT_PTR previous = List->freeList;
for (wrapper = List->freeList;
wrapper != gcvNULL;
wrapper = wrapper->next)
{
if (wrapper->name == Name)
{
previous->next = wrapper->next;
break;
}
previous = wrapper;
}
}
}
if (wrapper == gcvNULL)
{
/* Allocate wrapper and the user object. */
gcmERR_BREAK(gcoOS_Allocate(
gcvNULL,
gcmALIGN(sizeof(glsNAMEDOBJECT), 4) + List->objectSize,
(gctPOINTER) &wrapper
));
/* Set the objects's name. */
wrapper->name = Name;
/* Set the object pointer. */
wrapper->object
= ((gctUINT8_PTR) wrapper)
+ gcmALIGN(sizeof(glsNAMEDOBJECT), 4);
wrapper->referenceCount = 0;
wrapper->listBelonged = List;
}
}
/* Set the destructor. */
wrapper->deleteObject = ObjectDestructor;
/* Determine the hash table index. */
index = wrapper->name % glvNAMEDOBJECT_HASHTABLE_SIZE;
/* Shortcut to the table entry. */
entry = &List->hashTable[index];
/* Insert into the chain. */
wrapper->next = *entry;
*entry = wrapper;
glfReferenceNamedObject(wrapper);
/* Set the result. */
*ObjectWrapper = wrapper;
}
while (gcvFALSE);
gcmFOOTER();
return status;
}
/*******************************************************************************
**
** gckCOMMAND_Reserve
**
** Reserve space in the command queue. Also acquire the command queue mutex.
**
** INPUT:
**
** gckCOMMAND Command
** Pointer to an gckCOMMAND object.
**
** gctSIZE_T RequestedBytes
** Number of bytes previously reserved.
**
** OUTPUT:
**
** gctPOINTER * Buffer
** Pointer to a variable that will receive the address of the reserved
** space.
**
** gctSIZE_T * BufferSize
** Pointer to a variable that will receive the number of bytes
** available in the command queue.
*/
gceSTATUS
gckCOMMAND_Reserve(
IN gckCOMMAND Command,
IN gctSIZE_T RequestedBytes,
IN gctBOOL Locking,
OUT gctPOINTER * Buffer,
OUT gctSIZE_T * BufferSize
)
{
gceSTATUS status;
gctSIZE_T requiredBytes, bytes;
gctBOOL acquired = gcvFALSE;
gcmkHEADER_ARG("Command=0x%x RequestedBytes=%lu Locking=%d",
Command, RequestedBytes, Locking);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
if (!Locking)
{
/* Grab the conmmand queue mutex. */
gcmkONERROR(
gckOS_AcquireMutex(Command->os,
Command->mutexQueue,
gcvINFINITE));
acquired = gcvTRUE;
}
/* Compute number of bytes required for WAIT/LINK. */
gcmkONERROR(
gckHARDWARE_WaitLink(Command->kernel->hardware,
gcvNULL,
Command->offset + gcmALIGN(RequestedBytes,
Command->alignment),
&requiredBytes,
gcvNULL,
gcvNULL));
/* Compute total number of bytes required. */
requiredBytes += gcmALIGN(RequestedBytes, Command->alignment);
/* Compute number of bytes available in command queue. */
bytes = Command->pageSize - Command->offset;
if (bytes < requiredBytes)
{
/* Create a new command queue. */
gcmkONERROR(_NewQueue(Command, gcvTRUE));
/* Recompute number of bytes available in command queue. */
bytes = Command->pageSize - Command->offset;
if (bytes < requiredBytes)
{
/* Rare case, not enough room in command queue. */
gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
}
}
/* Return pointer to empty slot command queue. */
*Buffer = (gctUINT8 *) Command->logical + Command->offset;
/* Return number of bytes left in command queue. */
*BufferSize = bytes;
/* Success. */
gcmkFOOTER_ARG("*Buffer=0x%x *BufferSize=%lu", *Buffer, *BufferSize);
return gcvSTATUS_OK;
OnError:
if (acquired)
{
/* Release command queue mutex on error. */
gcmkVERIFY_OK(
gckOS_ReleaseMutex(Command->os, Command->mutexQueue));
}
/* Return status. */
gcmkFOOTER();
return status;
}
