diff options
| author | Deepak M <m.deepak@intel.com> | 2016-09-15 15:01:10 +0530 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-09-15 13:57:36 +0300 |
| commit | 6f3fff602e8179c74249a66046cf88767e1923b2 (patch) | |
| tree | 3f859930034076acc2b9a1b7d34e6b63445bed5f /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 7a9347f947757f6c5ea432b299a8ba33ef7b78c7 (diff) | |
drm/i915: Add ddb size field to device info structure
Adding the ddb size into the devide info will avoid
platform checks while computing wm.
v2: Added comment and WARN_ON if ddb size is zero.(Jani)
v3: Added WARN_ON at the right place.(Jani)
Suggested-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Deepak M <m.deepak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1473931870-7724-1-git-send-email-m.deepak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 6af438ffef9a..2df06b703e3d 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2853,13 +2853,6 @@ bool ilk_disable_lp_wm(struct drm_device *dev) return _ilk_disable_lp_wm(dev_priv, WM_DIRTY_LP_ALL); } -/* - * On gen9, we need to allocate Display Data Buffer (DDB) portions to the - * different active planes. - */ - -#define SKL_DDB_SIZE 896 /* in blocks */ -#define BXT_DDB_SIZE 512 #define SKL_SAGV_BLOCK_TIME 30 /* µs */ /* @@ -3057,10 +3050,8 @@ skl_ddb_get_pipe_allocation_limits(struct drm_device *dev, else *num_active = hweight32(dev_priv->active_crtcs); - if (IS_BROXTON(dev)) - ddb_size = BXT_DDB_SIZE; - else - ddb_size = SKL_DDB_SIZE; + ddb_size = INTEL_INFO(dev_priv)->ddb_size; + WARN_ON(ddb_size == 0); ddb_size -= 4; /* 4 blocks for bypass path allocation */ |