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authorEric Anholt <eric@anholt.net>2008-06-05 08:44:46 -0700
committerEric Anholt <eric@anholt.net>2008-06-05 08:45:39 -0700
commitd198e9b091e919a90895e551e48fb30d36a849ef (patch)
treecce21f597944a58aa74f56b41df312c1dc2274ce /libdrm
parent0903de0c8f7d2566c1bd65600142a71572eec07e (diff)
Add a function to bufmgr_fake to evict all buffers in the GTT.
This will be used by the X Server for VT switch.
Diffstat (limited to 'libdrm')
-rw-r--r--libdrm/intel/intel_bufmgr.h1
-rw-r--r--libdrm/intel/intel_bufmgr_fake.c35
2 files changed, 35 insertions, 1 deletions
diff --git a/libdrm/intel/intel_bufmgr.h b/libdrm/intel/intel_bufmgr.h
index b9542eab..1cf0d518 100644
--- a/libdrm/intel/intel_bufmgr.h
+++ b/libdrm/intel/intel_bufmgr.h
@@ -85,6 +85,7 @@ void intel_bo_fake_disable_backing_store(dri_bo *bo,
void (*invalidate_cb)(dri_bo *bo,
void *ptr),
void *ptr);
+void intel_bufmgr_fake_evict_all(dri_bufmgr *bufmgr);
int intel_bo_emit_reloc(dri_bo *reloc_buf,
uint32_t read_domains, uint32_t write_domain,
diff --git a/libdrm/intel/intel_bufmgr_fake.c b/libdrm/intel/intel_bufmgr_fake.c
index 1bddbeab..3f5a22d3 100644
--- a/libdrm/intel/intel_bufmgr_fake.c
+++ b/libdrm/intel/intel_bufmgr_fake.c
@@ -125,7 +125,6 @@ typedef struct _bufmgr_fake {
* List of blocks which have an expired fence and are ready to be evicted.
*/
struct block lru;
- /* then to bufmgr->lru or free() */
unsigned int last_fence;
@@ -1141,6 +1140,40 @@ dri_fake_check_aperture_space(dri_bo *bo)
return 0;
}
+/**
+ * Evicts all buffers, waiting for fences to pass and copying contents out
+ * as necessary.
+ *
+ * Used by the X Server on LeaveVT, when the card memory is no longer our
+ * own.
+ */
+void
+intel_bufmgr_fake_evict_all(dri_bufmgr *bufmgr)
+{
+ dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bufmgr;
+ struct block *block, *tmp;
+
+ bufmgr_fake->need_fence = 1;
+ bufmgr_fake->fail = 0;
+
+ /* Wait for hardware idle. We don't know where acceleration has been
+ * happening, so we'll need to wait anyway before letting anything get
+ * put on the card again.
+ */
+ dri_bufmgr_fake_wait_idle(bufmgr_fake);
+
+ /* Check that we hadn't released the lock without having fenced the last
+ * set of buffers.
+ */
+ assert(DRMLISTEMPTY(&bufmgr_fake->fenced));
+ assert(DRMLISTEMPTY(&bufmgr_fake->on_hardware));
+
+ DRMLISTFOREACHSAFE(block, tmp, &bufmgr_fake->lru) {
+ /* Releases the memory, and memcpys dirty contents out if necessary. */
+ free_block(bufmgr_fake, block);
+ }
+}
+
dri_bufmgr *
intel_bufmgr_fake_init(unsigned long low_offset, void *low_virtual,
unsigned long size,