diff options
| author | Mahesh Kumar <mahesh1.kumar@intel.com> | 2018-08-24 15:02:25 +0530 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-09-13 14:33:03 -0700 |
| commit | 8a6c5447635c4039eb51801fb5dcdb8c7ef93cfb (patch) | |
| tree | 4f2b2be7a3dc2d8d6eb2a87469e13d102762ae34 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | f361912aa9bfefbdf875b185fc93f2454d917b4a (diff) | |
| download | linux-8a6c5447635c4039eb51801fb5dcdb8c7ef93cfb.tar.bz2 | |
drm/i915/kbl+: Enable IPC only for symmetric memory configurations
IPC may cause underflows if not used with dual channel symmetric
memory configuration. Disable IPC for non symmetric configurations in
affected platforms.
Display WA #1141
Changes Since V1:
- Re-arrange the code.
- update wrapper to return if memory is symmetric (Rodrigo)
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180824093225.12598-6-mahesh1.kumar@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 89366c20196a..ea6c6f715ca6 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1956,6 +1956,7 @@ struct drm_i915_private { I915_DRAM_RANK_DUAL } rank; u32 bandwidth_kbps; + bool symmetric_memory; } dram_info; struct i915_runtime_pm runtime_pm; |