kernel: add patch header and missing part in 132-mips_inline_dma_ops.patch again
The select SYS_HAS_DMA_OPS in CPU_CAVIUM_OCTEON was from the kernel patch in 3.13, but it is only included in kernel 3.14 and not in 3.13 and 3.18, add it again. Thank you swalker for spotting this. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 43134
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7 changed files with 82 additions and 11 deletions
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@ -1,6 +1,33 @@
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From 2c58080407554e1bac8fd50d23cb02420524caed Mon Sep 17 00:00:00 2001
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From: Felix Fietkau <nbd@openwrt.org>
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Date: Mon, 12 Aug 2013 12:50:22 +0200
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Subject: [PATCH] MIPS: partially inline dma ops
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Several DMA ops are no-op on many platforms, and the indirection through
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the mips_dma_map_ops function table is causing the compiler to emit
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unnecessary code.
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Inlining visibly improves network performance in my tests (on a 24Kc
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based system), and also slightly reduces code size of a few drivers.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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arch/mips/Kconfig | 4 +
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arch/mips/include/asm/dma-mapping.h | 360 +++++++++++++++++++++++++++++++++++-
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arch/mips/mm/dma-default.c | 163 ++--------------
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3 files changed, 373 insertions(+), 154 deletions(-)
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--- a/arch/mips/Kconfig
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -1377,6 +1377,7 @@ config CPU_CAVIUM_OCTEON
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@@ -1145,6 +1145,7 @@ config CPU_LOONGSON2F
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depends on SYS_HAS_CPU_LOONGSON2F
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select CPU_LOONGSON2
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select ARCH_REQUIRE_GPIOLIB
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+ select SYS_HAS_DMA_OPS
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help
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The Loongson 2F processor implements the MIPS III instruction set
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with many extensions.
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@@ -1377,6 +1378,7 @@ config CPU_CAVIUM_OCTEON
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select LIBFDT
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select LIBFDT
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select USE_OF
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select USE_OF
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select USB_EHCI_BIG_ENDIAN_MMIO
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select USB_EHCI_BIG_ENDIAN_MMIO
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@ -8,7 +35,7 @@
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help
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help
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The Cavium Octeon processor is a highly integrated chip containing
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The Cavium Octeon processor is a highly integrated chip containing
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many ethernet hardware widgets for networking tasks. The processor
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many ethernet hardware widgets for networking tasks. The processor
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@@ -1599,6 +1600,9 @@ config SYS_HAS_CPU_XLR
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@@ -1599,6 +1601,9 @@ config SYS_HAS_CPU_XLR
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config SYS_HAS_CPU_XLP
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config SYS_HAS_CPU_XLP
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bool
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bool
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@ -18,7 +18,7 @@ Acked-by: Rob Landley <rob@landley.net>
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config CEVT_BCM1480
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config CEVT_BCM1480
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bool
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bool
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@@ -2349,6 +2346,18 @@ config USE_OF
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@@ -2350,6 +2347,18 @@ config USE_OF
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select OF_EARLY_FLATTREE
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select OF_EARLY_FLATTREE
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select IRQ_DOMAIN
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select IRQ_DOMAIN
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@ -1,8 +1,6 @@
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Index: linux-3.14.16/arch/mips/boot/compressed/string.c
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--- a/arch/mips/boot/compressed/string.c
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===================================================================
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+++ b/arch/mips/boot/compressed/string.c
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--- linux-3.14.16.orig/arch/mips/boot/compressed/string.c 2014-08-07 16:50:59.000000000 -0700
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@@ -26,3 +26,19 @@ void *memset(void *s, int c, size_t n)
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+++ linux-3.14.16/arch/mips/boot/compressed/string.c 2014-10-23 16:42:01.015003995 -0700
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@@ -26,3 +26,19 @@
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ss[i] = c;
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ss[i] = c;
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return s;
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return s;
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}
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}
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@ -1,3 +1,22 @@
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From 2c58080407554e1bac8fd50d23cb02420524caed Mon Sep 17 00:00:00 2001
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From: Felix Fietkau <nbd@openwrt.org>
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Date: Mon, 12 Aug 2013 12:50:22 +0200
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Subject: [PATCH] MIPS: partially inline dma ops
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Several DMA ops are no-op on many platforms, and the indirection through
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the mips_dma_map_ops function table is causing the compiler to emit
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unnecessary code.
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Inlining visibly improves network performance in my tests (on a 24Kc
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based system), and also slightly reduces code size of a few drivers.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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arch/mips/Kconfig | 4 +
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arch/mips/include/asm/dma-mapping.h | 360 +++++++++++++++++++++++++++++++++++-
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arch/mips/mm/dma-default.c | 163 ++--------------
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3 files changed, 373 insertions(+), 154 deletions(-)
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--- a/arch/mips/Kconfig
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -1620,6 +1620,9 @@ config SYS_HAS_CPU_XLR
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@@ -1620,6 +1620,9 @@ config SYS_HAS_CPU_XLR
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@ -1,6 +1,33 @@
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From 2c58080407554e1bac8fd50d23cb02420524caed Mon Sep 17 00:00:00 2001
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From: Felix Fietkau <nbd@openwrt.org>
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Date: Mon, 12 Aug 2013 12:50:22 +0200
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Subject: [PATCH] MIPS: partially inline dma ops
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Several DMA ops are no-op on many platforms, and the indirection through
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the mips_dma_map_ops function table is causing the compiler to emit
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unnecessary code.
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Inlining visibly improves network performance in my tests (on a 24Kc
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based system), and also slightly reduces code size of a few drivers.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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arch/mips/Kconfig | 4 +
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arch/mips/include/asm/dma-mapping.h | 360 +++++++++++++++++++++++++++++++++++-
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arch/mips/mm/dma-default.c | 163 ++--------------
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3 files changed, 373 insertions(+), 154 deletions(-)
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--- a/arch/mips/Kconfig
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -1705,6 +1705,9 @@ config MIPS_MALTA_PM
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@@ -1450,6 +1450,7 @@ config CPU_CAVIUM_OCTEON
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select CPU_SUPPORTS_HUGEPAGES
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select USB_EHCI_BIG_ENDIAN_MMIO
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select MIPS_L1_CACHE_SHIFT_7
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+ select SYS_HAS_DMA_OPS
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help
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The Cavium Octeon processor is a highly integrated chip containing
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many ethernet hardware widgets for networking tasks. The processor
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@@ -1705,6 +1706,9 @@ config MIPS_MALTA_PM
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bool
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bool
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default y
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default y
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@ -18,7 +18,7 @@ Acked-by: Rob Landley <rob@landley.net>
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config CEVT_BCM1480
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config CEVT_BCM1480
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bool
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bool
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@@ -2492,6 +2489,18 @@ config USE_OF
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@@ -2493,6 +2490,18 @@ config USE_OF
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config BUILTIN_DTB
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config BUILTIN_DTB
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bool
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bool
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@ -26,7 +26,7 @@ v2: incorporated changes suggested by Jonas Gorski
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--- a/arch/mips/Kconfig
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -2484,6 +2484,20 @@ config MIPS_O32_FP64_SUPPORT
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@@ -2485,6 +2485,20 @@ config MIPS_O32_FP64_SUPPORT
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If unsure, say N.
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If unsure, say N.
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