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authorEric Anholt <anholt@freebsd.org>2005-11-08 06:11:55 +0000
committerEric Anholt <anholt@freebsd.org>2005-11-08 06:11:55 +0000
commit4b2235d2e089a512b26ecd66ae42ea279fbb1df2 (patch)
treeb9d119752cce93f9cb240e881c4430c50e057eb9 /bsd-core
parent71f9b7357cb3d4ea7bb5b396840de3985bc13ad4 (diff)
Correct a LOR related to the PCI resource allocations by simply moving the
uninit to unload time rather than lastclose.
Diffstat (limited to 'bsd-core')
-rw-r--r--bsd-core/drm_bufs.c2
-rw-r--r--bsd-core/drm_drv.c23
2 files changed, 17 insertions, 8 deletions
diff --git a/bsd-core/drm_bufs.c b/bsd-core/drm_bufs.c
index f088703c..93bcc812 100644
--- a/bsd-core/drm_bufs.c
+++ b/bsd-core/drm_bufs.c
@@ -53,7 +53,7 @@ int drm_order(unsigned long size)
/* Allocation of PCI memory resources (framebuffer, registers, etc.) for
* drm_get_resource_*. Note that they are not RF_ACTIVE, so there's no virtual
- * address for accessing them. Cleaned up at lastclose.
+ * address for accessing them. Cleaned up at unload.
*/
static int drm_alloc_resource(drm_device_t *dev, int resource)
{
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c
index 648fbf3d..6766195b 100644
--- a/bsd-core/drm_drv.c
+++ b/bsd-core/drm_drv.c
@@ -474,13 +474,7 @@ static int drm_lastclose(drm_device_t *dev)
TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) {
drm_rmmap(dev, map);
}
- for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
- if (dev->pcir[i] == NULL)
- continue;
- bus_release_resource(dev->device, SYS_RES_MEMORY,
- dev->pcirid[i], dev->pcir[i]);
- dev->pcir[i] = NULL;
- }
+
drm_dma_takedown(dev);
if ( dev->lock.hw_lock ) {
@@ -568,6 +562,8 @@ error:
static void drm_unload(drm_device_t *dev)
{
+ int i;
+
DRM_DEBUG( "\n" );
#ifdef __FreeBSD__
@@ -589,6 +585,19 @@ static void drm_unload(drm_device_t *dev)
drm_lastclose(dev);
DRM_UNLOCK();
+ /* Clean up PCI resources allocated by drm_bufs.c. We're not really
+ * worried about resource consumption while the DRM is inactive (between
+ * lastclose and firstopen or unload) because these aren't actually
+ * taking up KVA, just keeping the PCI resource allocated.
+ */
+ for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
+ if (dev->pcir[i] == NULL)
+ continue;
+ bus_release_resource(dev->device, SYS_RES_MEMORY,
+ dev->pcirid[i], dev->pcir[i]);
+ dev->pcir[i] = NULL;
+ }
+
if ( dev->agp ) {
free(dev->agp, M_DRM);
dev->agp = NULL;