Hi, We are developing the image processor driver for Intel Medfield platform. We have received some comments on memory management that we should use standard Linux kernel interfaces for this, since we are doing everything by ourselves including memory allocation (based on pages), page table management, virtual address management and etc. So can you please help give some advice or suggestion on using standard kernel interface for memory management? The processor has a MMU on-chip with same virtual address range as IA. The processor will access system memory (read and write) through MMU and page table. The memory consumption of the driver could be quite big especially for high resolution (14MP) with certain features turned on. For example: advanced ISP with XNR and yuv444 output, at 14MP this uses: 1 RAW16: 2*14 = 28MB 1 qplane6: 6/4 * 14 = 21MB 1 yuv420_16: 2 * 1.5 * 14 = 42MB 1 yuv420: 1.5 * 14 = 21MB 1 yuv444: 3 * 14 = 42MB total: 154MB. Thanks Wen -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
