forked from Minki/linux
750b317f85
Patch series "mm: PG_reserved cleanups and documentation", v2. I was recently going over all users of PG_reserved. Short story: it is difficult and sometimes not really clear if setting/checking for PG_reserved is only a relict from the past. Easy to break things. I guess I now have a pretty good idea wh things are like that nowadays and how they evolved. I had way more cleanups in this series inititally, but some architectures take PG_reserved as a way to apply a different caching strategy (for MMIO pages). So I decided to only include the most obvious changes (that are less likely to break something). So the big chunk of manual SetPageReserved users are MMIO/DMA related things on device buffers. Most notably, for device memory we will hopefully soon stop setting PG_reserved. Then the documentation has to be updated. This patch (of 9): The l1 GATT page table is kept in a special on-chip page with 64 entries. We allocate the l2 page table pages via get_zeroed_page() and enter them into the table. These l2 pages are modified accordingly when inserting/removing memory via efficeon_insert_memory and efficeon_remove_memory. Apart from that, these pages are not exposed or ioremap'ed. We can stop setting them reserved (propably copied from generic code). Link: http://lkml.kernel.org/r/20190114125903.24845-2-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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agp.h | ||
ali-agp.c | ||
alpha-agp.c | ||
amd64-agp.c | ||
amd-k7-agp.c | ||
ati-agp.c | ||
backend.c | ||
compat_ioctl.c | ||
compat_ioctl.h | ||
efficeon-agp.c | ||
frontend.c | ||
generic.c | ||
hp-agp.c | ||
i460-agp.c | ||
intel-agp.c | ||
intel-agp.h | ||
intel-gtt.c | ||
isoch.c | ||
Kconfig | ||
Makefile | ||
nvidia-agp.c | ||
parisc-agp.c | ||
sgi-agp.c | ||
sis-agp.c | ||
sworks-agp.c | ||
uninorth-agp.c | ||
via-agp.c |