Commit b0ebde39 authored by Chris Wilson's avatar Chris Wilson

drm/i915: L3 cache remapping is part of context switching

Move the i915_gem_l3_remap function such that it next to the context
switching, which is where we perform the L3 remap.
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461833819-3991-8-git-send-email-chris@chris-wilson.co.uk
parent b2e862d0
...@@ -4738,37 +4738,6 @@ i915_gem_suspend(struct drm_device *dev) ...@@ -4738,37 +4738,6 @@ i915_gem_suspend(struct drm_device *dev)
return ret; return ret;
} }
int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice)
{
struct intel_engine_cs *engine = req->engine;
struct drm_device *dev = engine->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 *remap_info = dev_priv->l3_parity.remap_info[slice];
int i, ret;
if (!HAS_L3_DPF(dev) || !remap_info)
return 0;
ret = intel_ring_begin(req, GEN7_L3LOG_SIZE / 4 * 3);
if (ret)
return ret;
/*
* Note: We do not worry about the concurrent register cacheline hang
* here because no other code should access these registers other than
* at initialization time.
*/
for (i = 0; i < GEN7_L3LOG_SIZE / 4; i++) {
intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(1));
intel_ring_emit_reg(engine, GEN7_L3LOG(slice, i));
intel_ring_emit(engine, remap_info[i]);
}
intel_ring_advance(engine);
return ret;
}
void i915_gem_init_swizzling(struct drm_device *dev) void i915_gem_init_swizzling(struct drm_device *dev)
{ {
struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_private *dev_priv = dev->dev_private;
......
...@@ -601,6 +601,37 @@ mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags) ...@@ -601,6 +601,37 @@ mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
return ret; return ret;
} }
int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice)
{
struct intel_engine_cs *engine = req->engine;
struct drm_device *dev = engine->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 *remap_info = dev_priv->l3_parity.remap_info[slice];
int i, ret;
if (!HAS_L3_DPF(dev) || !remap_info)
return 0;
ret = intel_ring_begin(req, GEN7_L3LOG_SIZE / 4 * 3);
if (ret)
return ret;
/*
* Note: We do not worry about the concurrent register cacheline hang
* here because no other code should access these registers other than
* at initialization time.
*/
for (i = 0; i < GEN7_L3LOG_SIZE / 4; i++) {
intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(1));
intel_ring_emit_reg(engine, GEN7_L3LOG(slice, i));
intel_ring_emit(engine, remap_info[i]);
}
intel_ring_advance(engine);
return ret;
}
static inline bool skip_rcs_switch(struct intel_engine_cs *engine, static inline bool skip_rcs_switch(struct intel_engine_cs *engine,
struct intel_context *to) struct intel_context *to)
{ {
......
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