drm/i915: Update switch_mm() to take a request structure

Updated the switch_mm() code paths to take a request instead of a ring. This
includes the myriad *_mm_switch functions themselves and a bunch of PDP related
helper functions.

v2: Rebased to newer tree.

For: VIZ-5115
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Tomas Elf <tomas.elf@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index a9dd7e9..a223c9d 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -652,7 +652,7 @@ static int do_switch(struct drm_i915_gem_request *req)
                 * Register Immediate commands in Ring Buffer before submitting
                 * a context."*/
                trace_switch_mm(ring, to);
-               ret = to->ppgtt->switch_mm(to->ppgtt, ring);
+               ret = to->ppgtt->switch_mm(to->ppgtt, req);
                if (ret)
                        goto unpin_out;
 
@@ -703,7 +703,7 @@ static int do_switch(struct drm_i915_gem_request *req)
         */
        if (needs_pd_load_post(ring, to, hw_flags)) {
                trace_switch_mm(ring, to);
-               ret = to->ppgtt->switch_mm(to->ppgtt, ring);
+               ret = to->ppgtt->switch_mm(to->ppgtt, req);
                /* The hardware context switch is emitted, but we haven't
                 * actually changed the state - so it's probably safe to bail
                 * here. Still, let the user know something dangerous has

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 81ffd70..5b0f512 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -452,10 +452,11 @@ free_pd:
 }
 
 /* Broadwell Page Directory Pointer Descriptors */
-static int gen8_write_pdp(struct intel_engine_cs *ring,
+static int gen8_write_pdp(struct drm_i915_gem_request *req,
                          unsigned entry,
                          dma_addr_t addr)
 {
+       struct intel_engine_cs *ring = req->ring;
        int ret;
 
        BUG_ON(entry >= 4);
@@ -476,7 +477,7 @@ static int gen8_write_pdp(struct intel_engine_cs *ring,
 }
 
 static int gen8_mm_switch(struct i915_hw_ppgtt *ppgtt,
-                         struct intel_engine_cs *ring)
+                         struct drm_i915_gem_request *req)
 {
        int i, ret;
 
@@ -485,7 +486,7 @@ static int gen8_mm_switch(struct i915_hw_ppgtt *ppgtt,
                dma_addr_t pd_daddr = pd ? pd->daddr : ppgtt->scratch_pd->daddr;
                /* The page directory might be NULL, but we need to clear out
                 * whatever the previous context might have used. */
-               ret = gen8_write_pdp(ring, i, pd_daddr);
+               ret = gen8_write_pdp(req, i, pd_daddr);
                if (ret)
                        return ret;
        }
@@ -1062,8 +1063,9 @@ static uint32_t get_pd_offset(struct i915_hw_ppgtt *ppgtt)
 }
 
 static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt,
-                        struct intel_engine_cs *ring)
+                        struct drm_i915_gem_request *req)
 {
+       struct intel_engine_cs *ring = req->ring;
        int ret;
 
        /* NB: TLBs must be flushed and invalidated before a switch */
@@ -1087,8 +1089,9 @@ static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt,
 }
 
 static int vgpu_mm_switch(struct i915_hw_ppgtt *ppgtt,
-                         struct intel_engine_cs *ring)
+                         struct drm_i915_gem_request *req)
 {
+       struct intel_engine_cs *ring = req->ring;
        struct drm_i915_private *dev_priv = to_i915(ppgtt->base.dev);
 
        I915_WRITE(RING_PP_DIR_DCLV(ring), PP_DIR_DCLV_2G);
@@ -1097,8 +1100,9 @@ static int vgpu_mm_switch(struct i915_hw_ppgtt *ppgtt,
 }
 
 static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
-                         struct intel_engine_cs *ring)
+                         struct drm_i915_gem_request *req)
 {
+       struct intel_engine_cs *ring = req->ring;
        int ret;
 
        /* NB: TLBs must be flushed and invalidated before a switch */
@@ -1129,8 +1133,9 @@ static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
 }
 
 static int gen6_mm_switch(struct i915_hw_ppgtt *ppgtt,
-                         struct intel_engine_cs *ring)
+                         struct drm_i915_gem_request *req)
 {
+       struct intel_engine_cs *ring = req->ring;
        struct drm_device *dev = ppgtt->base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
 
@@ -1582,7 +1587,7 @@ int i915_ppgtt_init_ring(struct drm_i915_gem_request *req)
        if (!ppgtt)
                return 0;
 
-       return ppgtt->switch_mm(ppgtt, req->ring);
+       return ppgtt->switch_mm(ppgtt, req);
 }
 
 struct i915_hw_ppgtt *

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 75dfa05..735f119 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -338,7 +338,7 @@ struct i915_hw_ppgtt {
 
        int (*enable)(struct i915_hw_ppgtt *ppgtt);
        int (*switch_mm)(struct i915_hw_ppgtt *ppgtt,
-                        struct intel_engine_cs *ring);
+                        struct drm_i915_gem_request *req);
        void (*debug_dump)(struct i915_hw_ppgtt *ppgtt, struct seq_file *m);
 };