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sna: Mark no-reloc write buffers 

If we bypass the relocation processing, we also then bypass the
pending-write analysis, so we need to supply those to the kernel
ourselves (to maintain gpu-cpu coherency).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-11-08 23:42:10 +00:00
parent 85ba7e9626
commit f040b97b01
1 changed files with 3 additions and 0 deletions
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3
src/sna/kgem.c
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@ -114,6 +114,8 @@ search_snoop_cache(struct kgem *kgem, unsigned int num_pages, unsigned flags);
#define LOCAL_I915_EXEC_NO_RELOC (1<<10)
#define LOCAL_I915_EXEC_HANDLE_LUT (1<<11)
#define LOCAL_EXEC_OBJECT_WRITE (1<<1)
#define LOCAL_I915_GEM_USERPTR 0x32
#define LOCAL_IOCTL_I915_GEM_USERPTR DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_USERPTR, struct local_i915_gem_userptr)
struct local_i915_gem_userptr {
@ -3926,6 +3928,7 @@ uint32_t kgem_add_reloc(struct kgem *kgem,
if (read_write_domain & 0x7ff) {
assert(!bo->snoop || kgem->can_blt_cpu);
bo->exec->flags |= LOCAL_EXEC_OBJECT_WRITE;
kgem_bo_mark_dirty(bo);
}