Changeset 803 for trunk/platforms/tsar_generic_leti/arch.py

Timestamp:

Sep 12, 2014, 3:10:04 PM (10 years ago)

Author:

cfuguet

Message:

tsar_generic_leti: Using the new P_WIDTH constant from hard_config.h

• This constant is used in the clusters to compute the procesor id which now is: (((x << Y_WIDTH) + y) << P_WIDTH) + lpid

• Introducing the p_width constant in the arch.py files

File:

• trunk/platforms/tsar_generic_leti/arch.py (modified) (8 diffs)

trunk/platforms/tsar_generic_leti/arch.py

@@ -1 +1 @@
 #!/usr/bin/env python
 
+from math import log, ceil
 from mapping import *
 
 ###############################################################################
-#   file   : arch.py  (for the tsar_generic_iob architecture)
+#   file   : arch.py  (for the tsar_generic_leti architecture)
 #   date   : may 2014
 #   author : Alain Greiner
 ###############################################################################
-#  This file contains a mapping generator for the "tsar_generic_iob" platform.
+#  This file contains a mapping generator for the "tsar_generic_leti" platform.
 #  This includes both the hardware architecture (clusters, processors,
 #  peripherals, physical space segmentation) and the mapping of all kernel
-#  objects (global vsegs).  This platform includes 6 external peripherals,
-#  accessible through two IO_Bridge components located in cluster [0,0] and
-#  cluster [x_size-1, y_size-1].  Available peripherals are: TTY, BDV, FBF,
-#  ROM, NIC, CMA.
+#  objects (global vsegs).
 #
 #  The "constructor" parameters are:
@@ -49 +47 @@
     x_width           = 4
     y_width           = 4
+    p_width           = int(ceil(log(nb_procs, 2)))
     paddr_width       = 40
     irq_per_proc      = 4
@@ -54 +53 @@
     peri_increment    = 0x10000
     reset_address     = 0x00000000
-    distributed_ptabs = True
+    distributed_ptabs = False
 
     ### parameters checking
 
-    assert( nb_procs <= 4 )
+    assert( nb_procs <= (1 << p_width) )
 
     assert( (x_size == 1) or (x_size == 2) or (x_size == 4)
@@ -71 +70 @@
             ((x_io == x_size-1) and (y_io == y_size-1)) )
 
-    platform_name  = 'tsar_iob_%d_%d_%d' % ( x_size, y_size, nb_procs )
+    platform_name  = 'tsar_leti_%d_%d_%d' % ( x_size, y_size, nb_procs )
 
     ### define physical segments
@@ -107 +106 @@
     rdk_size  = 0x02000000                 # 32 Mbytes
 
+    ### define  preloader vseg base address and size
+
+    preloader_vbase      = 0x00000000      # ident
+    preloader_size       = 0x00010000      # 64 Kbytes
+
     ### define  bootloader vsegs base addresses and sizes
 
-    boot_mapping_vbase   = 0x00000000      # ident
+    boot_mapping_vbase   = 0x00010000      # ident
     boot_mapping_size    = 0x00080000      # 512 Kbytes
 
-    boot_code_vbase      = 0x00080000      # ident
+    boot_code_vbase      = 0x00090000      # ident
     boot_code_size       = 0x00040000      # 256 Kbytes
 
-    boot_data_vbase      = 0x000C0000      # ident
+    boot_data_vbase      = 0x000D0000      # ident
     boot_data_size       = 0x00080000      # 512 Kbytes
 
-    boot_stack_vbase     = 0x00140000      # ident
+    boot_stack_vbase     = 0x00150000      # ident
     boot_stack_size      = 0x00050000      # 320 Kbytes
 
@@ -135 +139 @@
     kernel_init_size     = 0x00010000      # 64 Kbytes
 
-    kernel_sched_vbase   = 0xF0000000            # distributed in all clusters
+    kernel_sched_vbase   = 0x80060000            # distributed in all clusters
     kernel_sched_size    = 0x2000 * nb_procs     # 8 kbytes per processor
 
@@ -146 +150 @@
                        x_width        = x_width,
                        y_width        = y_width,
+                       p_width        = p_width,
                        paddr_width    = paddr_width,
                        coherence      = True,
@@ -218 +223 @@
                 mapping.addProc( x, y, p )
 
+    ### global vseg for preloader
+
+    mapping.addGlobal( 'seg_preloader', preloader_vbase, preloader_size, '__W_',
+                       vtype = 'BUFFER', x = 0, y = 0, pseg = 'RAM',
+                       identity = True )
+
     ### global vseg for ram disk
 
-    mapping.addGlobal( 'seg_rdk', rdk_base, rdk_size, '__W_',
-                       vtype = 'BUFFER', x = 0, y = 0, pseg = 'RAM',
-                       identity = True )
+    if use_ramdisk:
+        mapping.addGlobal( 'seg_rdk', rdk_base, rdk_size, '__W_',
+                           vtype = 'BUFFER', x = 0, y = 0, pseg = 'RAM',
+                           identity = True )
 
     ### global vsegs for external peripherals / identity mapping