struct LinuxMemArea *NewAllocPagesLinuxMemArea(u32 ui32Bytes,
u32 ui32AreaFlags)
{
struct LinuxMemArea *psLinuxMemArea;
u32 ui32PageCount;
struct page **pvPageList;
void *hBlockPageList;
s32 i;
enum PVRSRV_ERROR eError;
psLinuxMemArea = LinuxMemAreaStructAlloc();
if (!psLinuxMemArea)
goto failed_area_alloc;
ui32PageCount = RANGE_TO_PAGES(ui32Bytes);
eError = OSAllocMem(0, sizeof(*pvPageList) * ui32PageCount,
(void **)&pvPageList, &hBlockPageList);
if (eError != PVRSRV_OK)
goto failed_page_list_alloc;
for (i = 0; i < ui32PageCount; i++) {
pvPageList[i] = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, 0);
if (!pvPageList[i])
goto failed_alloc_pages;
}
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
DebugMemAllocRecordAdd(DEBUG_MEM_ALLOC_TYPE_ALLOC_PAGES,
pvPageList, NULL, 0, NULL, PAGE_ALIGN(ui32Bytes),
"unknown", 0);
#endif
psLinuxMemArea->eAreaType = LINUX_MEM_AREA_ALLOC_PAGES;
psLinuxMemArea->uData.sPageList.pvPageList = pvPageList;
psLinuxMemArea->uData.sPageList.hBlockPageList = hBlockPageList;
psLinuxMemArea->ui32ByteSize = ui32Bytes;
psLinuxMemArea->ui32AreaFlags = ui32AreaFlags;
psLinuxMemArea->bMMapRegistered = IMG_FALSE;
INIT_LIST_HEAD(&psLinuxMemArea->sMMapOffsetStructList);
#if defined(DEBUG_LINUX_MEM_AREAS)
DebugLinuxMemAreaRecordAdd(psLinuxMemArea, ui32AreaFlags);
#endif
return psLinuxMemArea;
failed_alloc_pages:
for (i--; i >= 0; i--)
__free_pages(pvPageList[i], 0);
OSFreeMem(0, sizeof(*pvPageList) * ui32PageCount, pvPageList,
hBlockPageList);
failed_page_list_alloc:
LinuxMemAreaStructFree(psLinuxMemArea);
failed_area_alloc:
PVR_DPF(PVR_DBG_ERROR, "%s: failed", __func__);
return NULL;
}
struct LinuxMemArea *NewAllocPagesLinuxMemArea(u32 ui32Bytes,
u32 ui32AreaFlags)
{
struct LinuxMemArea *psLinuxMemArea;
u32 ui32PageCount;
struct page **pvPageList;
u32 i;
psLinuxMemArea = LinuxMemAreaStructAlloc();
if (!psLinuxMemArea)
goto failed_area_alloc;
ui32PageCount = RANGE_TO_PAGES(ui32Bytes);
pvPageList =
VMallocWrapper(sizeof(void *) * ui32PageCount, PVRSRV_HAP_CACHED);
if (!pvPageList)
goto failed_vmalloc;
for (i = 0; i < ui32PageCount; i++) {
pvPageList[i] = alloc_pages(GFP_KERNEL, 0);
if (!pvPageList[i])
goto failed_alloc_pages;
}
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
DebugMemAllocRecordAdd(DEBUG_MEM_ALLOC_TYPE_ALLOC_PAGES,
pvPageList, NULL, 0, NULL, PAGE_ALIGN(ui32Bytes),
"unknown", 0);
#endif
psLinuxMemArea->eAreaType = LINUX_MEM_AREA_ALLOC_PAGES;
psLinuxMemArea->uData.sPageList.pvPageList = pvPageList;
psLinuxMemArea->ui32ByteSize = ui32Bytes;
#if defined(DEBUG_LINUX_MEM_AREAS)
DebugLinuxMemAreaRecordAdd(psLinuxMemArea, ui32AreaFlags);
#endif
return psLinuxMemArea;
failed_alloc_pages:
for (i--; i >= 0; i--)
__free_pages(pvPageList[i], 0);
VFreeWrapper(pvPageList);
failed_vmalloc:
LinuxMemAreaStructFree(psLinuxMemArea);
failed_area_alloc:
PVR_DPF(PVR_DBG_ERROR, "%s: failed", __func__);
return NULL;
}
static IMG_BOOL PagesAreContiguous(struct IMG_SYS_PHYADDR *psSysPhysAddr,
u32 ui32Bytes)
{
u32 ui32;
u32 ui32AddrChk;
u32 ui32NumPages = RANGE_TO_PAGES(ui32Bytes);
for (ui32 = 0, ui32AddrChk = psSysPhysAddr[0].uiAddr;
ui32 < ui32NumPages; ui32++, ui32AddrChk += PAGE_SIZE)
if (psSysPhysAddr[ui32].uiAddr != ui32AddrChk)
return IMG_FALSE;
return IMG_TRUE;
}
static void inv_cache_page_list(const struct LinuxMemArea *mem_area)
{
u32 pg_cnt;
struct page **pg_list;
extern void ___dma_single_dev_to_cpu(const void *, size_t,
enum dma_data_direction);
pg_cnt = RANGE_TO_PAGES(mem_area->ui32ByteSize);
pg_list = mem_area->uData.sPageList.pvPageList;
while (pg_cnt--)
___dma_single_dev_to_cpu(page_address(*pg_list++), PAGE_SIZE,
DMA_FROM_DEVICE);
}
BCE_ERROR BCAllocDiscontigMemory(unsigned long ulSize,
BCE_HANDLE unref__ *phMemHandle,
IMG_CPU_VIRTADDR *pLinAddr,
IMG_SYS_PHYADDR **ppPhysAddr)
{
unsigned long ulPages = RANGE_TO_PAGES(ulSize);
IMG_SYS_PHYADDR *pPhysAddr;
unsigned long ulPage;
IMG_CPU_VIRTADDR LinAddr;
LinAddr = __vmalloc(ulSize, GFP_KERNEL | __GFP_HIGHMEM, pgprot_noncached(PAGE_KERNEL));
if (!LinAddr)
{
return BCE_ERROR_OUT_OF_MEMORY;
}
pPhysAddr = kmalloc(ulPages * sizeof(IMG_SYS_PHYADDR), GFP_KERNEL);
if (!pPhysAddr)
{
vfree(LinAddr);
return BCE_ERROR_OUT_OF_MEMORY;
}
*pLinAddr = LinAddr;
for (ulPage = 0; ulPage < ulPages; ulPage++)
{
pPhysAddr[ulPage].uiAddr = VMALLOC_TO_PAGE_PHYS(LinAddr);
LinAddr += PAGE_SIZE;
}
*ppPhysAddr = pPhysAddr;
return BCE_OK;
}
