Russell King - ARM Linux 쓴 글:
On Tue, Mar 15, 2011 at 10:45:50AM +0900, InKi Dae wrote:
2011/3/14 Russell King - ARM Linux :
On Mon, Mar 14, 2011 at 09:37:51PM +0900, KyongHo Cho wrote:
I have also noticed that dma_map_single/page/sg() can map physical
memory into an arbitrary device address r
Michel Dänzer 쓴 글:
On Fre, 2011-01-07 at 11:17 +0900, InKi Dae wrote:
thank you for your comments.
your second comment has no any problem as I said before, user virtual
addess could be translated in page unit. but the problem, as you said,
is that when cpu access to the memory in user mode, the
Hello, Mr. Jonghun.
please, note that user process's pgd and device's pgd with system mmu
are differnent. first, the memory allocated by user malloc should be
mapped to physical memory in page unit because user app also should be
accessed to own memory region. and when mapping the physical memory
