drm/i915: Remove early l3-remap

Since we do the l3-remap on context switch, we can remove the redundant
early call to set the mapping prior to performing the first context
switch.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461833819-3991-10-git-send-email-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c3fbc05..a403239 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3147,7 +3147,6 @@ bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
 int __must_check i915_gem_init(struct drm_device *dev);
 int i915_gem_init_engines(struct drm_device *dev);
 int __must_check i915_gem_init_hw(struct drm_device *dev);
-int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice);
 void i915_gem_init_swizzling(struct drm_device *dev);
 void i915_gem_cleanup_engines(struct drm_device *dev);
 int __must_check i915_gpu_idle(struct drm_device *dev);

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e83ee11..762ddd2 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4842,7 +4842,7 @@ i915_gem_init_hw(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_engine_cs *engine;
-       int ret, j;
+       int ret;
 
        if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt())
                return -EIO;
@@ -4924,14 +4924,6 @@ i915_gem_init_hw(struct drm_device *dev)
                        break;
                }
 
-               if (engine->id == RCS) {
-                       for (j = 0; j < NUM_L3_SLICES(dev); j++) {
-                               ret = i915_gem_l3_remap(req, j);
-                               if (ret)
-                                       goto err_request;
-                       }
-               }
-
                ret = i915_ppgtt_init_ring(req);
                if (ret)
                        goto err_request;

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 3a09cc8..fc3b634 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -601,7 +601,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
        return ret;
 }
 
-int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice)
+static int remap_l3(struct drm_i915_gem_request *req, int slice)
 {
        u32 *remap_info = req->i915->l3_parity.remap_info[slice];
        struct intel_engine_cs *engine = req->engine;
@@ -799,7 +799,7 @@ static int do_rcs_switch(struct drm_i915_gem_request *req)
                if (!(to->remap_slice & (1<<i)))
                        continue;
 
-               ret = i915_gem_l3_remap(req, i);
+               ret = remap_l3(req, i);
                if (ret)
                        return ret;