diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2017-10-06 23:18:14 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-07 10:11:41 +0100 |
| commit | 465c403cb50868a86164bfe5b3bf6ddd70c395e1 (patch) | |
| tree | b82d04151ef58c051ef3e3056b3e6b4a729a5f4d /drivers/gpu/drm/i915/i915_drv.h | |
| parent | 703321b60b605b1f381f5dcf0bca42703b912e3e (diff) | |
drm/i915: introduce simple gemfs
Not a fully blown gemfs, just our very own tmpfs kernel mount. Doing so
moves us away from the shmemfs shm_mnt, and gives us the much needed
flexibility to do things like set our own mount options, namely huge=
which should allow us to enable the use of transparent-huge-pages for
our shmem backed objects.
v2: various improvements suggested by Joonas
v3: move gemfs instance to i915.mm and simplify now that we have
file_setup_with_mnt
v4: fallback to tmpfs shm_mnt upon failure to setup gemfs
v5: make tmpfs fallback kinder
v5: better gemfs failure message
flags variable
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Hugh Dickins <hughd@google.com>
Cc: linux-mm@kvack.org
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-3-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1fc7080bfa7b..ec6f320cc4f5 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1511,6 +1511,11 @@ struct i915_gem_mm { /** Usable portion of the GTT for GEM */ dma_addr_t stolen_base; /* limited to low memory (32-bit) */ + /** + * tmpfs instance used for shmem backed objects + */ + struct vfsmount *gemfs; + /** PPGTT used for aliasing the PPGTT with the GTT */ struct i915_hw_ppgtt *aliasing_ppgtt; |