[PATCH v3 1/3] powerpc/boot: don't force gzipped uImage

[PATCH v3 1/3] powerpc/boot: don't force gzipped uImage

[Christophe Leroy]

This patch modifies the generation of uImage by handing over
the selected compression type instead of forcing gzip

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

---
 v3: no change
 v2: no change
---
 arch/powerpc/boot/wrapper | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 532d45833396..85d97360b1c9 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -40,6 +40,7 @@ dts=
 cacheit=
 binary=
 compression=.gz
+uboot_comp=gzip
 pie=
 format=
 
@@ -130,6 +131,7 @@ while [ "$#" -gt 0 ]; do
 	;;
     -z)
 	compression=.gz
+	uboot_comp=gzip
 	;;
     -Z)
 	shift
@@ -137,15 +139,21 @@ while [ "$#" -gt 0 ]; do
         [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "none" ] || usage
 
 	compression=".$1"
+	uboot_comp=$1
 
         if [ $compression = ".none" ]; then
                 compression=
+		uboot_comp=none
         fi
+	if [ $uboot_comp = "gz" ]; then
+		uboot_comp=gzip
+	fi
 	;;
     --no-gzip)
         # a "feature" of the the wrapper script is that it can be used outside
         # the kernel tree. So keeping this around for backwards compatibility.
         compression=
+	uboot_comp=none
         ;;
     -?)
 	usage
@@ -368,6 +376,7 @@ if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel
     *)
         # drop the compression suffix so the stripped vmlinux is used
         compression=
+	uboot_comp=none
 	;;
     esac
 
@@ -411,7 +420,7 @@ membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'`
 case "$platform" in
 uboot)
     rm -f "$ofile"
-    ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
+    ${MKIMAGE} -A ppc -O linux -T kernel -C $uboot_comp -a $membase -e $membase \
 	$uboot_version -d "$vmz" "$ofile"
     if [ -z "$cacheit" ]; then
 	rm -f "$vmz"
-- 
2.13.3

[PATCH v3 2/3] powerpc/boot: Add lzma support for uImage

[Christophe Leroy]

This patch allows to generate lzma compressed uImage

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

---
 v3: no change
 v2: restore alphabetic order in Kconfig
---
 arch/powerpc/Kconfig       | 1 +
 arch/powerpc/boot/Makefile | 2 ++
 arch/powerpc/boot/wrapper  | 5 ++++-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 8c1c636308c8..5542430ba261 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -196,6 +196,7 @@ config PPC
 	select HAVE_IOREMAP_PROT
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_LZMA			if DEFAULT_UIMAGE
 	select HAVE_KERNEL_XZ			if PPC_BOOK3S || 44x
 	select HAVE_KPROBES
 	select HAVE_KPROBES_ON_FTRACE
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 73d1f3562978..9b7b11a22925 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -22,6 +22,7 @@ all: $(obj)/zImage
 
 compress-$(CONFIG_KERNEL_GZIP) := CONFIG_KERNEL_GZIP
 compress-$(CONFIG_KERNEL_XZ)   := CONFIG_KERNEL_XZ
+compress-$(CONFIG_KERNEL_LZMA) := CONFIG_KERNEL_LZMA
 
 ifdef CROSS32_COMPILE
     BOOTCC := $(CROSS32_COMPILE)gcc
@@ -257,6 +258,7 @@ endif
 
 compressor-$(CONFIG_KERNEL_GZIP) := gz
 compressor-$(CONFIG_KERNEL_XZ)   := xz
+compressor-$(CONFIG_KERNEL_LZMA)   := lzma
 
 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
 quiet_cmd_wrap	= WRAP    $@
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 85d97360b1c9..19887f6ad7c1 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -136,7 +136,7 @@ while [ "$#" -gt 0 ]; do
     -Z)
 	shift
 	[ "$#" -gt 0 ] || usage
-        [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "none" ] || usage
+        [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "none" ] || usage
 
 	compression=".$1"
 	uboot_comp=$1
@@ -373,6 +373,9 @@ if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel
     .gz)
         gzip -n -f -9 "$vmz.$$"
         ;;
+    .lzma)
+        xz --format=lzma -f -6 "$vmz.$$"
+	;;
     *)
         # drop the compression suffix so the stripped vmlinux is used
         compression=
-- 
2.13.3

[PATCH v3 3/3] powerpc/boot: Add lzo support for uImage

[Christophe Leroy]

This patch allows to generate lzo compressed uImage

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

---
 v3: rebased following the drop of patch 3 (bzip2) which is not supported anymore by uboot.
 v2: restore alphabetic order in Kconfig
---
 arch/powerpc/Kconfig       | 1 +
 arch/powerpc/boot/Makefile | 2 ++
 arch/powerpc/boot/wrapper  | 5 ++++-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5542430ba261..2b041f88b593 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -197,6 +197,7 @@ config PPC
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZMA			if DEFAULT_UIMAGE
+	select HAVE_KERNEL_LZO			if DEFAULT_UIMAGE
 	select HAVE_KERNEL_XZ			if PPC_BOOK3S || 44x
 	select HAVE_KPROBES
 	select HAVE_KPROBES_ON_FTRACE
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 9b7b11a22925..36fb51a9329f 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -23,6 +23,7 @@ all: $(obj)/zImage
 compress-$(CONFIG_KERNEL_GZIP) := CONFIG_KERNEL_GZIP
 compress-$(CONFIG_KERNEL_XZ)   := CONFIG_KERNEL_XZ
 compress-$(CONFIG_KERNEL_LZMA) := CONFIG_KERNEL_LZMA
+compress-$(CONFIG_KERNEL_LZO)   := CONFIG_KERNEL_LZO
 
 ifdef CROSS32_COMPILE
     BOOTCC := $(CROSS32_COMPILE)gcc
@@ -259,6 +260,7 @@ endif
 compressor-$(CONFIG_KERNEL_GZIP) := gz
 compressor-$(CONFIG_KERNEL_XZ)   := xz
 compressor-$(CONFIG_KERNEL_LZMA)   := lzma
+compressor-$(CONFIG_KERNEL_LZO) := lzo
 
 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
 quiet_cmd_wrap	= WRAP    $@
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 19887f6ad7c1..5148ac271f28 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -136,7 +136,7 @@ while [ "$#" -gt 0 ]; do
     -Z)
 	shift
 	[ "$#" -gt 0 ] || usage
-        [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "none" ] || usage
+        [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "lzo" -o "$1" != "none" ] || usage
 
 	compression=".$1"
 	uboot_comp=$1
@@ -376,6 +376,9 @@ if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel
     .lzma)
         xz --format=lzma -f -6 "$vmz.$$"
 	;;
+    .lzo)
+        lzop -f -9 "$vmz.$$"
+	;;
     *)
         # drop the compression suffix so the stripped vmlinux is used
         compression=
-- 
2.13.3

Re: [PATCH v3 1/3] powerpc/boot: don't force gzipped uImage

[Michael Ellerman]

On Fri, 2019-06-14 at 10:16:23 UTC, Christophe Leroy wrote:
> This patch modifies the generation of uImage by handing over
> the selected compression type instead of forcing gzip
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/fbded57c962e7c42c932e1a46c8d801441726662

cheers