diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2022-06-29 20:43:40 +0300 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-07-01 10:29:59 +0300 |
| commit | 141f733bb3abb000d3949c3b2f119751fe93b0c0 (patch) | |
| tree | 0c7ee120af81c888ffd581cfe19efacef0b8f211 /drivers/gpu/drm/i915/intel_memory_region.c | |
| parent | 3f4309cbdc8496373875cfce67d7b5dba87c3ccb (diff) | |
| download | linux-141f733bb3abb000d3949c3b2f119751fe93b0c0.tar.xz | |
drm/i915/uapi: expose the avail tracking
Vulkan would like to have a rough measure of how much device memory can
in theory be allocated. Also add unallocated_cpu_visible_size to track
the visible portion, in case the device is using small BAR. Also tweak
the locking so we nice consistent values for both the mm->avail and the
visible tracking.
v2: tweak the locking slightly so we update the mm->avail and visible
tracking as one atomic operation, such that userspace doesn't get
strange values when sampling the values.
Testcase: igt@i915_query@query-regions-unallocated
Testcase: igt@i915_query@query-regions-sanity-check
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220629174350.384910-3-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_memory_region.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_memory_region.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c index e38d2db1c3e3..94ee26e99549 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.c +++ b/drivers/gpu/drm/i915/intel_memory_region.c @@ -279,6 +279,20 @@ void intel_memory_region_set_name(struct intel_memory_region *mem, va_end(ap); } +void intel_memory_region_avail(struct intel_memory_region *mr, + u64 *avail, u64 *visible_avail) +{ + if (mr->type == INTEL_MEMORY_LOCAL) { + i915_ttm_buddy_man_avail(mr->region_private, + avail, visible_avail); + *avail <<= PAGE_SHIFT; + *visible_avail <<= PAGE_SHIFT; + } else { + *avail = mr->total; + *visible_avail = mr->total; + } +} + void intel_memory_region_destroy(struct intel_memory_region *mem) { int ret = 0; |