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FVP: Allow building for DynamIQ systems

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FVPs that model DynamIQ configuration implements all CPUs in a single
cluster. I.e., such models have a single cluster with more than 4 CPUs.
This differs from existing default build configuration for FVP where up
to 4 CPUs are assumed per cluster.

To allow building for DynamIQ configuration, promote the macro
FVP_MAX_CPUS_PER_CLUSTER as a build option to have it set from the build
command line. The value of the build option defaults to 4.

Change-Id: Idc3853bc95f680869b434b011c2dbd733e40c6ce
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
This commit is contained in:
Jeenu Viswambharan 2018-01-31 14:52:08 +00:00
parent 0400ccb644
commit fe7210cdca
3 changed files with 13 additions and 1 deletions

3
docs/user-guide.rst
View file

@ -755,6 +755,9 @@ ARM FVP platform specific build options
- ``FVP_CCN`` : The CCN driver is selected. This is the default
if ``FVP_CLUSTER_COUNT`` > 2.
- ``FVP_MAX_CPUS_PER_CLUSTER``: Sets the maximum number of CPUs implemented in
a single cluster. This option defaults to 4.
- ``FVP_MAX_PE_PER_CPU``: Sets the maximum number of PEs implemented on any CPU
in the system. This option defaults to 1. Note that the build option
``ARM_PLAT_MT`` doesn't have any effect on FVP platforms.

5
plat/arm/board/fvp/fvp_def.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -10,7 +10,10 @@
#ifndef FVP_CLUSTER_COUNT
#define FVP_CLUSTER_COUNT 2
#endif
#ifndef FVP_MAX_CPUS_PER_CLUSTER
#define FVP_MAX_CPUS_PER_CLUSTER 4
#endif
#ifndef FVP_MAX_PE_PER_CPU
# define FVP_MAX_PE_PER_CPU 1

6
plat/arm/board/fvp/platform.mk
View file

@ -13,6 +13,9 @@ FVP_USE_SP804_TIMER := 0
# Default cluster count for FVP
FVP_CLUSTER_COUNT := 2
# Default number of CPUs per cluster on FVP
FVP_MAX_CPUS_PER_CLUSTER := 4
# Default number of threads per CPU on FVP
FVP_MAX_PE_PER_CPU := 1
@ -27,6 +30,9 @@ $(eval $(call add_define,FVP_USE_GIC_DRIVER))
# Pass FVP_CLUSTER_COUNT to the build system.
$(eval $(call add_define,FVP_CLUSTER_COUNT))
# Pass FVP_MAX_CPUS_PER_CLUSTER to the build system.
$(eval $(call add_define,FVP_MAX_CPUS_PER_CLUSTER))
# Pass FVP_MAX_PE_PER_CPU to the build system.
$(eval $(call add_define,FVP_MAX_PE_PER_CPU))