Changeset 440 for trunk/kernel/devices/dev_mmc.c

Timestamp:

May 3, 2018, 5:51:22 PM (5 years ago)

Author:

alain

Message:

1/ Fix a bug in the Multithreaded "sort" applicationr:
The pthread_create() arguments must be declared as global variables.
2/ The exit syscall can be called by any thread of a process..

File:

• trunk/kernel/devices/dev_mmc.c (modified) (6 diffs)

trunk/kernel/devices/dev_mmc.c

@@ -57 +57 @@
 
 /////////////////////////////////////////////////////////////////////////////
-// This static function is called by all MMC device functions.
+// This static function is called by all MMC device access functions.
 // It makes some checking, takes the lock granting exclusive
 // access to MMC peripheral, call the driver to execute the command
@@ -71 +71 @@
     // get MMC device cluster identifier & local pointer
     cxy_t     dev_cxy = GET_CXY( dev_xp );
-    chdev_t * dev_ptr = (chdev_t *)GET_PTR( dev_xp );
+    chdev_t * dev_ptr = GET_PTR( dev_xp );
 
     // get driver command function pointer from MMC device descriptor
@@ -97 +97 @@
 
     // get calling thread local pointer
-    thread_t * this = CURRENT_THREAD;
+    thread_t  * this    = CURRENT_THREAD;
 
 #if DEBUG_DEV_MMC
@@ -113 +113 @@
              "buffer not aligned on cache line" );
 
-    // get buffer physical address
-    paddr_t  buf_paddr;
-    error = vmm_v2p_translate( CONFIG_KERNEL_IDENTITY_MAP , buf_ptr , &buf_paddr ); 
-
-    assert( (error == 0) , __FUNCTION__ , "cannot get buffer paddr" );
-
     // store command arguments in thread descriptor
     this->mmc_cmd.dev_xp    = chdev_dir.mmc[buf_cxy];
     this->mmc_cmd.type      = MMC_CC_INVAL;
-    this->mmc_cmd.buf_paddr = buf_paddr;
+    this->mmc_cmd.buf_ptr   = buf_ptr;
     this->mmc_cmd.buf_size  = buf_size;
 
@@ -144 +138 @@
     error_t error;
 
-    // get calling thread local pointer
-    thread_t * this = CURRENT_THREAD;
+    thread_t  * this    = CURRENT_THREAD;
 
 #if DEBUG_DEV_MMC
@@ -161 +154 @@
              "buffer not aligned on cache line" );
 
-    // get  buffer physical address
-    paddr_t  buf_paddr;
-    error = vmm_v2p_translate( CONFIG_KERNEL_IDENTITY_MAP , buf_ptr , &buf_paddr ); 
-
-    assert( (error == 0) , __FUNCTION__ , "cannot get buffer paddr" );
-
     // store command arguments in thread descriptor
     this->mmc_cmd.dev_xp    = chdev_dir.mmc[buf_cxy];
     this->mmc_cmd.type      = MMC_CC_SYNC;
-    this->mmc_cmd.buf_paddr = buf_paddr;
+    this->mmc_cmd.buf_ptr   = buf_ptr;
     this->mmc_cmd.buf_size  = buf_size;