/*******************************************************************************
**
** gckKERNEL_MapVideoMemory
**
** Get the logical address for a hardware specific memory address for the
** current process.
**
** INPUT:
**
** gckKERNEL Kernel
** Pointer to an gckKERNEL object.
**
** gctBOOL InUserSpace
** gcvTRUE to map the memory into the user space.
**
** gctUINT32 Address
** Hardware specific memory address.
**
** OUTPUT:
**
** gctPOINTER * Logical
** Pointer to a variable that will hold the logical address of the
** specified memory address.
*/
gceSTATUS gckKERNEL_MapVideoMemoryEx(
IN gckKERNEL Kernel,
IN gceCORE Core,
IN gctBOOL InUserSpace,
IN gctUINT32 Address,
OUT gctPOINTER * Logical
)
{
GCHAL * gchal;
gcePOOL pool;
gctUINT32 offset, base;
gceSTATUS status;
gctPOINTER logical;
gcmkHEADER_ARG("Kernel=%p InUserSpace=%d Address=%08x",
Kernel, InUserSpace, Address);
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_KERNEL,
"[ENTER] gckKERNEL_MapVideoMemory");
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
/* Extract the pointer to the GCHAL class. */
gchal = (GCHAL *) Kernel->context;
do
{
#if gcdENABLE_VG
if (Core == gcvCORE_VG)
{
/* Split the memory address into a pool type and offset. */
gcmkERR_BREAK(gckVGHARDWARE_SplitMemory(Kernel->vg->hardware,
Address,
&pool,
&offset));
}
else
#endif
{
/* Split the memory address into a pool type and offset. */
gcmkERR_BREAK(gckHARDWARE_SplitMemory(Kernel->hardware,
Address,
&pool,
&offset));
}
/* Dispatch on pool. */
switch (pool)
{
case gcvPOOL_LOCAL_INTERNAL:
/* Internal memory. */
logical = gchal->GetInternalLogical();
break;
case gcvPOOL_LOCAL_EXTERNAL:
/* External memory. */
logical = gchal->GetExternalLogical();
break;
case gcvPOOL_SYSTEM:
/* System memory. */
#if UNDER_CE >= 600
if (InUserSpace)
{
logical = gchal->GetProcessContiguousLogical();
}
else
{
logical = gchal->GetContiguousLogical();
}
#else
logical = gchal->GetContiguousLogical();
#endif
#if gcdENABLE_VG
if (Core == gcvCORE_VG)
{
gcmkVERIFY_OK(gckVGHARDWARE_SplitMemory(Kernel->vg->hardware,
gchal->GetContiguousHeap()->baseAddress,
&pool,
&base));
}
else
#endif
{
gcmkVERIFY_OK(gckHARDWARE_SplitMemory(Kernel->hardware,
gchal->GetContiguousHeap()->baseAddress,
&pool,
&base));
}
offset -= base;
break;
default:
/* Invalid memory pool. */
gcmkFATAL("Unknown memory pool: %u", pool);
return gcvSTATUS_INVALID_ARGUMENT;
}
/* Build logical address of specified address. */
*Logical = reinterpret_cast<gctPOINTER>
(static_cast<gctUINT8 *>(logical) + offset);
}
while (gcvFALSE);
if (gcmIS_SUCCESS(status))
{
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_KERNEL,
"gckKERNEL_MapVideoMemory: Address 0x%08X maps to %p",
Address, *Logical);
}
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_KERNEL,
"[LEAVE] gckKERNEL_MapVideoMemory(%u)",
status);
/* Return the status. */
gcmkFOOTER();
return status;
}
/*******************************************************************************
**
** gckKERNEL_MapVideoMemory
**
** Get the logical address for a hardware specific memory address for the
** current process.
**
** INPUT:
**
** gckKERNEL Kernel
** Pointer to an gckKERNEL object.
**
** gctBOOL InUserSpace
** gcvTRUE to map the memory into the user space.
**
** gctUINT32 Address
** Hardware specific memory address.
**
** OUTPUT:
**
** gctPOINTER * Logical
** Pointer to a variable that will hold the logical address of the
** specified memory address.
*/
gceSTATUS
gckKERNEL_MapVideoMemoryEx(
IN gckKERNEL Kernel,
IN gceCORE Core,
IN gctBOOL InUserSpace,
IN gctUINT32 Address,
OUT gctPOINTER * Logical
)
{
gckGALDEVICE device;
PLINUX_MDL mdl;
PLINUX_MDL_MAP mdlMap;
gcePOOL pool;
gctUINT32 offset, base;
gceSTATUS status;
gctPOINTER logical;
gcmkHEADER_ARG("Kernel=%p InUserSpace=%d Address=%08x",
Kernel, InUserSpace, Address);
/* Verify the arguments. */
gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
gcmkVERIFY_ARGUMENT(Logical != NULL);
/* Extract the pointer to the gckGALDEVICE class. */
device = (gckGALDEVICE) Kernel->context;
#if gcdENABLE_VG
if (Core == gcvCORE_VG)
{
/* Split the memory address into a pool type and offset. */
gcmkONERROR(
gckVGHARDWARE_SplitMemory(Kernel->vg->hardware, Address, &pool, &offset));
}
else
#endif
{
/* Split the memory address into a pool type and offset. */
gcmkONERROR(
gckHARDWARE_SplitMemory(Kernel->hardware, Address, &pool, &offset));
}
/* Dispatch on pool. */
switch (pool)
{
case gcvPOOL_LOCAL_INTERNAL:
/* Internal memory. */
logical = device->internalLogical;
break;
case gcvPOOL_LOCAL_EXTERNAL:
/* External memory. */
logical = device->externalLogical;
break;
case gcvPOOL_SYSTEM:
/* System memory. */
if (device->contiguousMapped)
{
logical = device->contiguousBase;
}
else
{
gctINT processID;
gckOS_GetProcessID(&processID);
mdl = (PLINUX_MDL) device->contiguousPhysical;
mdlMap = FindMdlMap(mdl, processID);
gcmkASSERT(mdlMap);
logical = (gctPOINTER) mdlMap->vmaAddr;
}
#if gcdENABLE_VG
if (Core == gcvCORE_VG)
{
gcmkVERIFY_OK(
gckVGHARDWARE_SplitMemory(Kernel->vg->hardware,
device->contiguousVidMem->baseAddress,
&pool,
&base));
}
else
#endif
{
gctUINT32 baseAddress = 0;
if (Kernel->hardware->mmuVersion == 0)
{
gcmkONERROR(gckOS_GetBaseAddress(Kernel->os, &baseAddress));
}
gcmkVERIFY_OK(
gckHARDWARE_SplitMemory(Kernel->hardware,
device->contiguousVidMem->baseAddress - baseAddress,
&pool,
&base));
}
offset -= base;
break;
default:
/* Invalid memory pool. */
gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
}
/* Build logical address of specified address. */
*Logical = (gctPOINTER) ((gctUINT8_PTR) logical + offset);
/* Success. */
gcmkFOOTER_ARG("*Logical=%p", *Logical);
return gcvSTATUS_OK;
OnError:
/* Retunn the status. */
gcmkFOOTER();
return status;
}
