Changeset 001b152 in mainline for uspace/drv/uhci-hcd/transfer_list.c

Timestamp:

2011-03-23T23:04:22Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

30718cc2

Parents:

05ead5c

Message:

Use simple slab allocator for hw accessible memory

File:

• uspace/drv/uhci-hcd/transfer_list.c (modified) (5 diffs)

uspace/drv/uhci-hcd/transfer_list.c

@@ -58 +58 @@
         }
         instance->queue_head_pa = addr_to_phys(instance->queue_head);
+        usb_log_debug2("Transfer list %s setup with QH: %p(%p).\n",
+            name, instance->queue_head, instance->queue_head_pa);
 
         qh_init(instance->queue_head);
@@ -118 +120 @@
         qh_set_next_qh(last_qh, pa);
 
+        asm volatile ("": : :"memory");
+//      asm volatile("clflush (%0)": : "r"(last_qh));
+
         /* Add to the driver list */
         list_append(&batch->link, &instance->batch_list);
@@ -159 +164 @@
         fibril_mutex_unlock(&instance->guard);
 
+        async_usleep(1000);
         while (!list_empty(&done)) {
                 link_t *item = done.next;
@@ -212 +218 @@
                     == addr_to_phys(batch_qh(batch)));
                 instance->queue_head->next = batch_qh(batch)->next;
+//              asm volatile("clflush (%0)" : : "r"(instance->queue_head));
                 qpos = "FIRST";
         } else {
@@ -220 +227 @@
                     == addr_to_phys(batch_qh(batch)));
                 batch_qh(prev)->next = batch_qh(batch)->next;
+//              asm volatile("clflush (%0)" : : "r"(batch_qh(prev)));
                 qpos = "NOT FIRST";
         }
+        asm volatile ("": : :"memory");
         /* Remove from the batch list */
         list_remove(&batch->link);