diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2025-03-06 13:08:27 -0800 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2025-03-11 07:04:51 -0700 |
| commit | bfef148f3680e6b9d28e7fca46d9520f80c5e50e (patch) | |
| tree | 3181a932d2f1f1ccc798afee2ecd91c086686a53 | |
| parent | cf58c9434599730ee95fcfe1ee26874814e99080 (diff) | |
drm/i915: Increase I915_PARAM_MMAP_GTT_VERSION version to indicate support for partial mmapsdrm-intel-gt-next-2025-03-12
Commit 255fc1703e42 ("drm/i915/gem: Calculate object page offset for partial memory mapping")
was the last patch of several patches fixing multiple partial mmaps.
But without a bump in I915_PARAM_MMAP_GTT_VERSION there is no clean
way for UMD to know if it can do multiple partial mmaps.
Fixes: 255fc1703e42 ("drm/i915/gem: Calculate object page offset for partial memory mapping")
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306210827.171147-1-jose.souza@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_mman.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index 21274aa9bddd..c3dabb857960 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -164,6 +164,9 @@ static unsigned int tile_row_pages(const struct drm_i915_gem_object *obj) * 4 - Support multiple fault handlers per object depending on object's * backing storage (a.k.a. MMAP_OFFSET). * + * 5 - Support multiple partial mmaps(mmap part of BO + unmap a offset, multiple + * times with different size and offset). + * * Restrictions: * * * snoopable objects cannot be accessed via the GTT. It can cause machine @@ -191,7 +194,7 @@ static unsigned int tile_row_pages(const struct drm_i915_gem_object *obj) */ int i915_gem_mmap_gtt_version(void) { - return 4; + return 5; } static inline struct i915_gtt_view |