From mboxrd@z Thu Jan 1 00:00:00 1970 From: m.szyprowski@samsung.com (Marek Szyprowski) Date: Fri, 27 Jan 2012 16:17:03 +0100 Subject: [Linaro-mm-sig] [PATCH 12/15] drivers: add Contiguous Memory Allocator In-Reply-To: References: <1327568457-27734-1-git-send-email-m.szyprowski@samsung.com> <1327568457-27734-13-git-send-email-m.szyprowski@samsung.com> <00de01ccdce1$e7c8a360$b759ea20$%szyprowski@samsung.com> <010301ccdd03$1ad15ab0$50741010$%szyprowski@samsung.com> Message-ID: <010501ccdd06$b9844f20$2c8ced60$%szyprowski@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello, On Friday, January 27, 2012 3:59 PM Ohad Ben-Cohen wrote: > 2012/1/27 Marek Szyprowski : > > Ohad, could you tell a bit more about your issue? > > Sure, feel free to ask. > > > Does this 'large region' > > is a device private region (declared with dma_declare_contiguous()) > > Yes, it is. > > See omap_rproc_reserve_cma() in: > > http://git.kernel.org/?p=linux/kernel/git/ohad/remoteproc.git;a=commitdiff;h=dab6a2584550a6297 > 46fa1dea2be8ffbe1910277 There have been some vmalloc layout changes merged to v3.3-rc1. Please check if the hardcoded OMAP_RPROC_CMA_BASE+CONFIG_OMAP_DUCATI_CMA_SIZE fits into kernel low-memory. Some hints you can find after the "Virtual kernel memory layout:" message during boot and using "cat /proc/iomem". Best regards -- Marek Szyprowski Samsung Poland R&D Center