diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2022-02-25 17:54:57 +0300 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-02-28 11:47:34 +0300 |
| commit | 3312a4ac8a464daa66b97452ec148b69c5959bec (patch) | |
| tree | 3d8f1c8e5d416ddd53df601038189459db1919e6 /drivers/gpu/drm/i915/intel_region_ttm.c | |
| parent | 235582ca96214b50fa03ea77a5e85e59d94cf358 (diff) | |
| download | linux-3312a4ac8a464daa66b97452ec148b69c5959bec.tar.xz | |
drm/i915/ttm: require mappable by default
On devices with non-mappable LMEM ensure we always allocate the pages
within the mappable portion. For now we assume that all LMEM buffers
will require CPU access, which is also inline with pretty much all
current kernel internal users. In the next patch we will introduce a new
flag to override this behaviour.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225145502.331818-2-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_region_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_region_ttm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index 7dea07c579aa..5a40310d6fdd 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -199,6 +199,11 @@ intel_region_ttm_resource_alloc(struct intel_memory_region *mem, struct ttm_resource *res; int ret; + if (mem->io_size && mem->io_size < mem->total) { + place.fpfn = 0; + place.lpfn = mem->io_size >> PAGE_SHIFT; + } + mock_bo.base.size = size; mock_bo.bdev = &mem->i915->bdev; place.flags = flags; |