Re: [PATCH 5/9] ps3: Preallocate bootmem memory for ps3fb

On Tuesday 30 January 2007 10:08, Benjamin Herrenschmidt wrote:

quoted

I'm afraid that assumption is usually false, as you only need to access the
FLASH when you want to change boot flags or update the boot loader.

At the same time, flash doesn't have to be fast... can't we use a
smaller bounce buffer (a page) and divide the transfer ?

No, the problem is that the flash interface only supports an hcall
for 'erase+write', but not separately, so the writes need to do
in erase block size, even if the physical medium can probably
handle smaller writes after a block was erased.

	Arnd <><