Author: kib
Date: Sat Jul 27 16:42:29 2013
New Revision: 253709
URL: http://svnweb.freebsd.org/changeset/base/253709
Log:
The pmap_qenter() and pmap_qremove() perform TLB invalidation on its
own, no need to call pmap_invalidate_range() one more time.
Noted by: alc
MFC after: 1 week
Modified:
head/sys/dev/drm2/i915/intel_ringbuffer.c
Modified: head/sys/dev/drm2/i915/intel_ringbuffer.c
==============================================================================
--- head/sys/dev/drm2/i915/intel_ringbuffer.c Sat Jul 27 16:32:34 2013
(r253708)
+++ head/sys/dev/drm2/i915/intel_ringbuffer.c Sat Jul 27 16:42:29 2013
(r253709)
@@ -365,8 +365,6 @@ init_pipe_control(struct intel_ring_buff
if (pc->cpu_page == NULL)
goto err_unpin;
pmap_qenter((uintptr_t)pc->cpu_page, &obj->pages[0], 1);
- pmap_invalidate_range(kernel_pmap, (vm_offset_t)pc->cpu_page,
- (vm_offset_t)pc->cpu_page + PAGE_SIZE);
pmap_invalidate_cache_range((vm_offset_t)pc->cpu_page,
(vm_offset_t)pc->cpu_page + PAGE_SIZE);
@@ -394,8 +392,6 @@ cleanup_pipe_control(struct intel_ring_b
obj = pc->obj;
pmap_qremove((vm_offset_t)pc->cpu_page, 1);
- pmap_invalidate_range(kernel_pmap, (vm_offset_t)pc->cpu_page,
- (vm_offset_t)pc->cpu_page + PAGE_SIZE);
kmem_free(kernel_map, (uintptr_t)pc->cpu_page, PAGE_SIZE);
i915_gem_object_unpin(obj);
drm_gem_object_unreference(&obj->base);
@@ -972,9 +968,6 @@ static void cleanup_status_page(struct i
return;
pmap_qremove((vm_offset_t)ring->status_page.page_addr, 1);
- pmap_invalidate_range(kernel_pmap,
- (vm_offset_t)ring->status_page.page_addr,
- (vm_offset_t)ring->status_page.page_addr + PAGE_SIZE);
kmem_free(kernel_map, (vm_offset_t)ring->status_page.page_addr,
PAGE_SIZE);
i915_gem_object_unpin(obj);
@@ -1014,9 +1007,6 @@ static int init_status_page(struct intel
}
pmap_qenter((vm_offset_t)ring->status_page.page_addr, &obj->pages[0],
1);
- pmap_invalidate_range(kernel_pmap,
- (vm_offset_t)ring->status_page.page_addr,
- (vm_offset_t)ring->status_page.page_addr + PAGE_SIZE);
pmap_invalidate_cache_range((vm_offset_t)ring->status_page.page_addr,
(vm_offset_t)ring->status_page.page_addr + PAGE_SIZE);
ring->status_page.obj = obj;
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