diff options
Diffstat (limited to 'recipes-kernel/linux/files/modify-defconfig-t1040-nr-cpus.patch')
| -rw-r--r-- | recipes-kernel/linux/files/modify-defconfig-t1040-nr-cpus.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/recipes-kernel/linux/files/modify-defconfig-t1040-nr-cpus.patch b/recipes-kernel/linux/files/modify-defconfig-t1040-nr-cpus.patch new file mode 100644 index 00000000..7d109edb --- /dev/null +++ b/recipes-kernel/linux/files/modify-defconfig-t1040-nr-cpus.patch @@ -0,0 +1,33 @@ +From 8545129540a5862b22aad03badb2a9f93bf29117 Mon Sep 17 00:00:00 2001 +From: Bob Cochran <yocto@mindchasers.com> +Date: Mon, 3 Nov 2014 22:45:35 -0500 +Subject: [meta-fsl-ppc][PATCH] linux-qoriq: Change defconfig for T1040 to + match number of CPUS + +Having a number higher than necessary for NR_CPUS wastes memory by +instantiating unnecessary structures in RAM. An example is in the DPAA where +DPAA_ETH_TX_QUEUES is defined based on NR_CPUS and used to create +dozens of extra qman_fq structures. Using the prior value of 24, which was +left over from the T4240 created an additonal 60 frame queue structures alone. + +This has been tested on t1040rdb-64b. . + +Signed-off-by: Bob Cochran <yocto@mindchasers.com> +--- + arch/powerpc/configs/corenet32_fmanv3l_smp_defconfig | 2 +- + 1 files changed, 1 insertions(+), 1 deletions(-) + +diff --git a/arch/powerpc/configs/corenet32_fmanv3l_smp_defconfig b/arch/powerpc/configs/corenet32_fmanv3l_smp_defconfig +index a401e7c..5542248 100644 +--- a/arch/powerpc/configs/corenet32_fmanv3l_smp_defconfig ++++ b/arch/powerpc/configs/corenet32_fmanv3l_smp_defconfig +@@ -1,6 +1,6 @@ + CONFIG_PPC_85xx=y + CONFIG_SMP=y +-CONFIG_NR_CPUS=8 ++CONFIG_NR_CPUS=4 + CONFIG_EXPERIMENTAL=y + CONFIG_SYSVIPC=y + CONFIG_POSIX_MQUEUE=y +-- +1.7.9.5 |