diff options
Diffstat (limited to 'recipes/linux/linux-omap/fix-irq33.diff')
| -rw-r--r-- | recipes/linux/linux-omap/fix-irq33.diff | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/recipes/linux/linux-omap/fix-irq33.diff b/recipes/linux/linux-omap/fix-irq33.diff deleted file mode 100644 index 709f042ab7..0000000000 --- a/recipes/linux/linux-omap/fix-irq33.diff +++ /dev/null @@ -1,111 +0,0 @@ -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 - |