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

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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>
This commit is contained in:
John Harrison 2015-05-29 17:43:56 +01:00 committed by Daniel Vetter
parent 4866d729ab
commit e85b26dc1c
3 changed files with 16 additions and 11 deletions
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4
drivers/gpu/drm/i915/i915_gem_context.c
View File

@ -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

21
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -452,10 +452,11 @@ static struct i915_page_directory *alloc_pd(struct drm_device *dev)
}
/* 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 *

2
drivers/gpu/drm/i915/i915_gem_gtt.h
View File

@ -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);
};