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authorRobert Schuster <thebohemian@gmx.net>2008-10-09 09:26:17 +0000
committerRobert Schuster <thebohemian@gmx.net>2008-10-09 09:26:17 +0000
commitda4a417ebdfacfb267bde3bce6051246b15c4b9b (patch)
tree50e1f124cef910bac4bb08c19a2cc95072db8705 /packages/linux
parentcf2a6858576fa48baf9a764f39d3b2c8711624d7 (diff)
parentec5a5fcd488d5f7b2751647120b4d2fec507eda9 (diff)
merge of '99b4c2c5cc4144822d6a86158e68432fb854563c'
and '9a0857ebdef17f18989f0702e43595ce522a7a24'
Diffstat (limited to 'packages/linux')
-rw-r--r--packages/linux/linux-omap/dvb-fix-dma.diff60
-rw-r--r--packages/linux/linux-omap/fix-irq33.diff111
-rw-r--r--packages/linux/linux-omap_git.bb4
-rw-r--r--packages/linux/linux-openmoko-devel_git.bb15
4 files changed, 178 insertions, 12 deletions
diff --git a/packages/linux/linux-omap/dvb-fix-dma.diff b/packages/linux/linux-omap/dvb-fix-dma.diff
new file mode 100644
index 0000000000..e05473fc7f
--- /dev/null
+++ b/packages/linux/linux-omap/dvb-fix-dma.diff
@@ -0,0 +1,60 @@
+Hi,
+I post this patch that fixes a kernel crash that happens when using a dvb
+usb stick on a mips platform and I think even on other platforms on which
+the dma access in not cache-coherent.
+
+The problem's origin is that, inside the method usb_bulk_urb_init of file
+drivers/media/dvb/dvb-usb/usb-urb.c, stream->urb_list[i]->transfer_buffer
+points to a memory area that has been allocated to be dma-coherent but
+stream->urb_list[i]->transfer_flags doesn't include the
+URB_NO_TRANSFER_DMA_MAP flag and stream->urb_list[i]->transfer_dma is not
+set.
+When later on the stream->urb_list[i]->transfer_buffer pointer is used
+inside function usb_hcd_submit_urb of file drivers/usb/core/hcd.c since the
+flag URB_NO_TRANSFER_DMA_MAP is not set the urb->transfer_buffer pointer is
+passed to the dma_map_single function that since the address is dma-coherent
+returns a wrong tranfer_dma address that later on leads to the kernel crash.
+
+The problem is solved by setting the URB_NO_TRANSFER_DMA_MAP flag and the
+stream->urb_list[i]->transfer_dma address.
+
+Perhaps to be more safe the URB_NO_TRANSFER_DMA_MAP flag can be set only
+if stream->urb_list[i]->transfer_dma != 0.
+
+I don't know if half of the fault can be of the dma_map_single function that
+should anyway returns a valid address both for a not dma-coherent and a
+dma-coherent address.
+
+Just to be clear:
+I've done this patch to solve my problem and I tested it only on a mips
+platform
+but I think it should not cause any problems on other platforms.
+I posted it here to help someone else that can have my same problem and to
+point it out
+to the mantainer of this part of code.
+You can use it at your own risk and I'm not resposible in any way for any
+problem or
+damage that it can cause.
+I'm available to discuss about it
+
+Bye
+
+Michele Scorcia
+
+--------------------
+
+
+
+
+--- /tmp/usb-urb.c 2008-10-08 09:53:23.000000000 +0200
++++ git/drivers/media/dvb/dvb-usb/usb-urb.c 2008-10-08 09:54:16.000000000 +0200
+@@ -152,7 +152,8 @@
+ stream->props.u.bulk.buffersize,
+ usb_urb_complete, stream);
+
+- stream->urb_list[i]->transfer_flags = 0;
++ stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
++ stream->urb_list[i]->transfer_dma = stream->dma_addr[i];
+ stream->urbs_initialized++;
+ }
+ return 0;
diff --git a/packages/linux/linux-omap/fix-irq33.diff b/packages/linux/linux-omap/fix-irq33.diff
new file mode 100644
index 0000000000..709f042ab7
--- /dev/null
+++ b/packages/linux/linux-omap/fix-irq33.diff
@@ -0,0 +1,111 @@
+From: "Nathan Monson" <nmonson@gmail.com>
+To: "linux-omap@vger.kernel.org List" <linux-omap@vger.kernel.org>
+Subject: Re: omapfb: help from userspace
+Cc: "TK, Pratheesh Gangadhar" <pratheesh@ti.com>
+
+On Wed, Oct 8, 2008 at 11:36 AM, Nathan Monson <nmonson@gmail.com> wrote:
+> "Felipe Contreras" <felipe.contreras@gmail.com> writes:
+>> irq -33, desc: c0335cf8, depth: 0, count: 0, unhandled: 0
+>
+> On the BeagleBoard list, Pratheesh Gangadhar said that mapping I/O
+> regions as Strongly Ordered suppresses this problem:
+> http://groups.google.com/group/beagleboard/browse_thread/thread/23e1c95b4bfb09b5/70d12dca569ca503?show_docid=70d12dca569ca503
+
+Pratheesh helped me make a patch against the latest linux-omap git to
+try this.
+
+With this patch, my IRQ -33 problems with the DSP have disappeared.
+Before, I would end up in IRQ -33 loop after 10 invocations of the DSP
+Bridge 'ping.out' utility. I just finished running it 50,000 times
+without error.
+
+As stated before, this patch is just a workaround for testing
+purposes, not a fix. Who knows what performance side effects it
+has...
+
+---
+diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
+index 9eb936e..5cb4f5f 100644
+--- a/arch/arm/include/asm/mach/map.h
++++ b/arch/arm/include/asm/mach/map.h
+@@ -25,6 +25,7 @@ struct map_desc {
+ #define MT_HIGH_VECTORS 8
+ #define MT_MEMORY 9
+ #define MT_ROM 10
++#define MT_MEMORY_SO 11
+
+ #define MT_NONSHARED_DEVICE MT_DEVICE_NONSHARED
+ #define MT_IXP2000_DEVICE MT_DEVICE_IXP2000
+diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
+index adbe21f..c11c0e8 100644
+--- a/arch/arm/mach-omap2/io.c
++++ b/arch/arm/mach-omap2/io.c
+@@ -119,13 +119,13 @@ static struct map_desc omap34xx_io_desc[] __initdata = {
+ .virtual = L3_34XX_VIRT,
+ .pfn = __phys_to_pfn(L3_34XX_PHYS),
+ .length = L3_34XX_SIZE,
+- .type = MT_DEVICE
++ .type = MT_MEMORY_SO
+ },
+ {
+ .virtual = L4_34XX_VIRT,
+ .pfn = __phys_to_pfn(L4_34XX_PHYS),
+ .length = L4_34XX_SIZE,
+- .type = MT_DEVICE
++ .type = MT_MEMORY_SO
+ },
+ {
+ .virtual = L4_WK_34XX_VIRT,
+@@ -137,19 +137,19 @@ static struct map_desc omap34xx_io_desc[] __initdata = {
+ .virtual = OMAP34XX_GPMC_VIRT,
+ .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
+ .length = OMAP34XX_GPMC_SIZE,
+- .type = MT_DEVICE
++ .type = MT_MEMORY_SO
+ },
+ {
+ .virtual = OMAP343X_SMS_VIRT,
+ .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS),
+ .length = OMAP343X_SMS_SIZE,
+- .type = MT_DEVICE
++ .type = MT_MEMORY_SO
+ },
+ {
+ .virtual = OMAP343X_SDRC_VIRT,
+ .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS),
+ .length = OMAP343X_SDRC_SIZE,
+- .type = MT_DEVICE
++ .type = MT_MEMORY_SO
+ },
+ {
+ .virtual = L4_PER_34XX_VIRT,
+@@ -161,7 +161,7 @@ static struct map_desc omap34xx_io_desc[] __initdata = {
+ .virtual = L4_EMU_34XX_VIRT,
+ .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS),
+ .length = L4_EMU_34XX_SIZE,
+- .type = MT_DEVICE
++ .type = MT_MEMORY_SO
+ },
+ };
+ #endif
+diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
+index a713e40..d5f25ad 100644
+--- a/arch/arm/mm/mmu.c
++++ b/arch/arm/mm/mmu.c
+@@ -245,6 +245,10 @@ static struct mem_type mem_types[] = {
+ .prot_sect = PMD_TYPE_SECT,
+ .domain = DOMAIN_KERNEL,
+ },
++ [MT_MEMORY_SO] = {
++ .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_UNCACHED,
++ .domain = DOMAIN_KERNEL,
++ },
+ };
+
+ const struct mem_type *get_mem_type(unsigned int type)
+--
+--
+To unsubscribe from this list: send the line "unsubscribe linux-omap" in
+the body of a message to majordomo@vger.kernel.org
+More majordomo info at http://vger.kernel.org/majordomo-info.html
+
diff --git a/packages/linux/linux-omap_git.bb b/packages/linux/linux-omap_git.bb
index 290d90084b..14de954e7c 100644
--- a/packages/linux/linux-omap_git.bb
+++ b/packages/linux/linux-omap_git.bb
@@ -9,7 +9,7 @@ COMPATIBLE_MACHINE = "omap5912osk|omap1710h3|omap2430sdp|omap2420h4|beagleboard|
SRCREV = "e1c49d7d22af768188e2a54c167ed79919361e55"
PV = "2.6.26+2.6.27-rc7+${PR}+git${SRCREV}"
-PR = "r12"
+PR = "r14"
SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git;protocol=git \
file://defconfig"
@@ -34,6 +34,8 @@ SRC_URI_append = " \
file://musb-fix-multiple-bulk-transfers.diff;patch=1 \
file://mru-256MB.diff;patch=1 \
file://musb-fix-endpoints.diff;patch=1 \
+ file://dvb-fix-dma.diff;patch=1 \
+ file://fix-irq33.diff;patch=1 \
"
diff --git a/packages/linux/linux-openmoko-devel_git.bb b/packages/linux/linux-openmoko-devel_git.bb
index c68b5c2e69..dac670abf9 100644
--- a/packages/linux/linux-openmoko-devel_git.bb
+++ b/packages/linux/linux-openmoko-devel_git.bb
@@ -5,21 +5,14 @@ DESCRIPTION = "Linux 2.6.x (development) kernel for the Openmoko Neo Smartphones
DEFAULT_PREFERENCE = "-1"
-KERNEL_RELEASE = "2.6.24"
+KERNEL_RELEASE = "2.6.26"
KERNEL_VERSION = "${KERNEL_RELEASE}"
-PV = "${KERNEL_RELEASE}+gitr${SRCREV}"
-PR = "r4"
+PV = "${KERNEL_RELEASE}+${PR}-gitr${SRCREV}"
+PR = "r0"
SRC_URI = "\
- git://git.openmoko.org/git/kernel.git;protocol=git;branch=andy \
- \
- file://0001-squashfs-with-lzma.patch;patch=1 \
- file://0002-squashfs-initrd.patch;patch=1 \
- file://0003-squashfs-force-O2.patch;patch=1 \
- file://0004-squashfs-Kconfig.patch;patch=1 \
- file://0005-squashfs-Makefile.patch;patch=1 \
- \
+ git://git.openmoko.org/git/kernel.git;protocol=git;branch=stable-tracking \
file://defconfig-oe \
"
S = "${WORKDIR}/git"