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| author | CQ Tang <cq.tang@intel.com> | 2021-04-21 11:46:55 +0100 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2021-04-22 08:50:15 +0100 |
| commit | d57d4a1daf5e8393e87244427c9b87dd565bd37c (patch) | |
| tree | 16bea64ffe3a3df572c4ed268b2d80cc1356e435 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | c256af0d6c1846db9af357a913b277b566ca3797 (diff) | |
| download | linux-d57d4a1daf5e8393e87244427c9b87dd565bd37c.tar.bz2 | |
drm/i915: Create stolen memory region from local memory
Add "REGION_STOLEN" device info to dg1, create stolen memory
region from upper portion of local device memory, starting
from DSMBASE.
v2:
- s/drm_info/drm_dbg; userspace likely doesn't care about stolen.
- mem->type is only setup after the region probe, so setting the name
as stolen-local or stolen-system based on this value won't work. Split
system vs local stolen setup to fix this.
- kill all the region->devmem/is_devmem stuff. We already differentiate
the different types of stolen so such things shouldn't be needed
anymore.
v3:
- split stolen lmem vs smem ops(Tvrtko)
- add shortcut for stolen region in i915(Tvrtko)
- sanity check dsm base vs bar size(Xinyun)
v4(Tvrtko):
- more cleanup
- add some TODOs
Signed-off-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Xinyun Liu <xinyun.liu@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421104658.304142-1-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e20294e9227a..0b44333eb703 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -514,6 +514,13 @@ struct intel_l3_parity { }; struct i915_gem_mm { + /* + * Shortcut for the stolen region. This points to either + * INTEL_REGION_STOLEN_SMEM for integrated platforms, or + * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't + * support stolen. + */ + struct intel_memory_region *stolen_region; /** Memory allocator for GTT stolen memory */ struct drm_mm stolen; /** Protects the usage of the GTT stolen memory allocator. This is |