* Please pull powerpc.git merge branch
From: Paul Mackerras @ 2008-03-27 23:08 UTC (permalink / raw)
To: torvalds; +Cc: linuxppc-dev, akpm, linux-kernel
Linus,
Olof Johansson has a defconfig update for the pasemi platform that he
would like to have in 2.6.25, so please do:
git pull \
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc.git merge
Thanks,
Paul.
arch/powerpc/configs/pasemi_defconfig | 142 ++++++++++++++++++++-------------
1 files changed, 88 insertions(+), 54 deletions(-)
commit 5c29934de29ddd7ecd913d83cad28e872f2e8c78
Author: Olof Johansson <olof@lixom.net>
Date: Tue Mar 25 10:28:26 2008 -0500
[POWERPC] update pasemi_defconfig
Disable GEN_RTC since it conflicts with the i2c rtc drivers registering,
besides that keep most of the new defaults.
Signed-off-by: Olof Johansson <olof@lixom.net>
^ permalink raw reply
* Re: [PATCH] [POWERPC] Clean up some linker and symbol usage
From: Paul Mackerras @ 2008-03-27 23:14 UTC (permalink / raw)
To: Kumar Gala; +Cc: linuxppc-dev
In-Reply-To: <Pine.LNX.4.64.0803271452540.12382@blarg.am.freescale.net>
Kumar Gala writes:
> @@ -1124,7 +1124,7 @@ void __init early_init_devtree(void *params)
> parse_early_param();
>
> /* Reserve LMB regions used by kernel, initrd, dt, etc... */
> - lmb_reserve(PHYSICAL_START, __pa(klimit) - PHYSICAL_START);
> + lmb_reserve(__pa(_stext), _end - _stext);
In the kdump case where the kernel starts at the 32MB point
(physical), wouldn't we want to reserve the first 32MB of RAM so that
it can't get allocated and used for random things? Doesn't that first
32MB contain the old kernel that we want to write out?
Or do we only have the 32MB starting at the 32MB point in the lmb
system in that case?
Paul.
^ permalink raw reply
* [PATCH 0/5] 2.6.25-rc5-mm1 hotplug memory remove updates
From: Badari Pulavarty @ 2008-03-28 0:33 UTC (permalink / raw)
To: lkml; +Cc: linuxppc-dev, Andrew Morton, paulus, Yasunori Goto
Hi Andrew & Paul,
Here are the updates for hotplug memory remove. Most changes are
PPC specific, but I would like these to be included in next -mm
for easy testing and review, before including in Paul's tree.
eHEA driver folks are verifying if the exported interface
walk_memory_resource() is good enough for their needs. And also,
we are verifying the code on x86_64. Once that is done, we may
be able to cleanup some of the code (make remove_memory() arch
generic).
[PATCH 1/5] generic __remove_pages() support
[PATCH 2/5] [PPC] htab_remove_mapping() error handling
[PATCH 3/5] [PPC] hotplug memory notifications for ppc
[PATCH 4/5] [PPC] update lmb for hotplug memory add/remove
[PATCH 5/5] [PPC] provide walk_memory_resource() for ppc
Testing: All the patches are tested on p-series LPAR configuration,
writing to /sysfs & /proc, through DLPAR tools and through HMC.
Testing on x86_64 needs more work.
Thanks,
Badari
^ permalink raw reply
* [PATCH 1/5] generic __remove_pages() support
From: Badari Pulavarty @ 2008-03-28 0:35 UTC (permalink / raw)
To: lkml; +Cc: linuxppc-dev, Andrew Morton, paulus, Yasunori Goto
In-Reply-To: <1206664406.19368.2.camel@dyn9047017100.beaverton.ibm.com>
Generic helper function to remove section mappings and sysfs entries
for the section of the memory we are removing. offline_pages() correctly
adjusted zone and marked the pages reserved.
TODO: Yasunori Goto is working on patches to freeup allocations from bootmem.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
---
include/linux/memory_hotplug.h | 6 +++-
mm/memory_hotplug.c | 55 +++++++++++++++++++++++++++++++++++++++++
mm/sparse.c | 45 +++++++++++++++++++++++++++++++--
3 files changed, 102 insertions(+), 4 deletions(-)
Index: linux-2.6.25-rc5/mm/memory_hotplug.c
===================================================================
--- linux-2.6.25-rc5.orig/mm/memory_hotplug.c 2008-03-21 07:00:37.000000000 -0800
+++ linux-2.6.25-rc5/mm/memory_hotplug.c 2008-03-25 15:03:58.000000000 -0800
@@ -102,6 +102,25 @@ static int __add_section(struct zone *zo
return register_new_memory(__pfn_to_section(phys_start_pfn));
}
+static int __remove_section(struct zone *zone, struct mem_section *ms)
+{
+ unsigned long flags;
+ struct pglist_data *pgdat = zone->zone_pgdat;
+ int ret = -EINVAL;
+
+ if (!valid_section(ms))
+ return ret;
+
+ ret = unregister_memory_section(ms);
+ if (ret)
+ return ret;
+
+ pgdat_resize_lock(pgdat, &flags);
+ sparse_remove_one_section(zone, ms);
+ pgdat_resize_unlock(pgdat, &flags);
+ return 0;
+}
+
/*
* Reasonably generic function for adding memory. It is
* expected that archs that support memory hotplug will
@@ -135,6 +154,42 @@ int __add_pages(struct zone *zone, unsig
}
EXPORT_SYMBOL_GPL(__add_pages);
+/**
+ * __remove_pages() - remove sections of pages from a zone
+ * @zone: zone from which pages need to be removed
+ * @phys_start_pfn: starting pageframe (must be aligned to start of a section)
+ * @nr_pages: number of pages to remove (must be multiple of section size)
+ *
+ * Generic helper function to remove section mappings and sysfs entries
+ * for the section of the memory we are removing. Caller needs to make
+ * sure that pages are marked reserved and zones are adjust properly by
+ * calling offline_pages().
+ */
+int __remove_pages(struct zone *zone, unsigned long phys_start_pfn,
+ unsigned long nr_pages)
+{
+ unsigned long i, ret = 0;
+ int sections_to_remove;
+
+ /*
+ * We can only remove entire sections
+ */
+ BUG_ON(phys_start_pfn & ~PAGE_SECTION_MASK);
+ BUG_ON(nr_pages % PAGES_PER_SECTION);
+
+ release_mem_region(phys_start_pfn << PAGE_SHIFT, nr_pages * PAGE_SIZE);
+
+ sections_to_remove = nr_pages / PAGES_PER_SECTION;
+ for (i = 0; i < sections_to_remove; i++) {
+ unsigned long pfn = phys_start_pfn + i*PAGES_PER_SECTION;
+ ret = __remove_section(zone, __pfn_to_section(pfn));
+ if (ret)
+ break;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(__remove_pages);
+
static void grow_zone_span(struct zone *zone,
unsigned long start_pfn, unsigned long end_pfn)
{
Index: linux-2.6.25-rc5/mm/sparse.c
===================================================================
--- linux-2.6.25-rc5.orig/mm/sparse.c 2008-03-21 07:00:37.000000000 -0800
+++ linux-2.6.25-rc5/mm/sparse.c 2008-03-25 13:59:51.000000000 -0800
@@ -198,12 +198,13 @@ static unsigned long sparse_encode_mem_m
}
/*
- * We need this if we ever free the mem_maps. While not implemented yet,
- * this function is included for parity with its sibling.
+ * Decode mem_map from the coded memmap
*/
-static __attribute((unused))
+static
struct page *sparse_decode_mem_map(unsigned long coded_mem_map, unsigned long pnum)
{
+ /* mask off the extra low bits of information */
+ coded_mem_map &= SECTION_MAP_MASK;
return ((struct page *)coded_mem_map) + section_nr_to_pfn(pnum);
}
@@ -363,6 +364,28 @@ static void __kfree_section_memmap(struc
}
#endif /* CONFIG_SPARSEMEM_VMEMMAP */
+static void free_section_usemap(struct page *memmap, unsigned long *usemap)
+{
+ if (!usemap)
+ return;
+
+ /*
+ * Check to see if allocation came from hot-plug-add
+ */
+ if (PageSlab(virt_to_page(usemap))) {
+ kfree(usemap);
+ if (memmap)
+ __kfree_section_memmap(memmap, PAGES_PER_SECTION);
+ return;
+ }
+
+ /*
+ * TODO: Allocations came from bootmem - how do I free up ?
+ */
+ printk(KERN_WARNING "Not freeing up allocations from bootmem "
+ "- leaking memory\n");
+}
+
/*
* returns the number of sections whose mem_maps were properly
* set. If this is <=0, then that means that the passed-in
@@ -415,4 +438,20 @@ out:
}
return ret;
}
+
+void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
+{
+ struct page *memmap = NULL;
+ unsigned long *usemap = NULL;
+
+ if (ms->section_mem_map) {
+ usemap = ms->pageblock_flags;
+ memmap = sparse_decode_mem_map(ms->section_mem_map,
+ __section_nr(ms));
+ ms->section_mem_map = 0;
+ ms->pageblock_flags = NULL;
+ }
+
+ free_section_usemap(memmap, usemap);
+}
#endif
Index: linux-2.6.25-rc5/include/linux/memory_hotplug.h
===================================================================
--- linux-2.6.25-rc5.orig/include/linux/memory_hotplug.h 2008-03-21 07:00:36.000000000 -0800
+++ linux-2.6.25-rc5/include/linux/memory_hotplug.h 2008-03-25 13:59:51.000000000 -0800
@@ -8,6 +8,7 @@
struct page;
struct zone;
struct pglist_data;
+struct mem_section;
#ifdef CONFIG_MEMORY_HOTPLUG
/*
@@ -64,9 +65,11 @@ extern int offline_pages(unsigned long,
/* reasonably generic interface to expand the physical pages in a zone */
extern int __add_pages(struct zone *zone, unsigned long start_pfn,
unsigned long nr_pages);
+extern int __remove_pages(struct zone *zone, unsigned long start_pfn,
+ unsigned long nr_pages);
/*
- * Walk thorugh all memory which is registered as resource.
+ * Walk through all memory which is registered as resource.
* arg is (start_pfn, nr_pages, private_arg_pointer)
*/
extern int walk_memory_resource(unsigned long start_pfn,
@@ -188,5 +191,6 @@ extern int arch_add_memory(int nid, u64
extern int remove_memory(u64 start, u64 size);
extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
int nr_pages);
+extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms);
#endif /* __LINUX_MEMORY_HOTPLUG_H */
^ permalink raw reply
* [PATCH 2/5] [PPC] htab_remove_mapping() error handling
From: Badari Pulavarty @ 2008-03-28 0:37 UTC (permalink / raw)
To: lkml; +Cc: linuxppc-dev, Andrew Morton, paulus, Yasunori Goto
In-Reply-To: <1206664406.19368.2.camel@dyn9047017100.beaverton.ibm.com>
If the sub-arch doesn't support hpte_removebolted(), gracefully
return failure rather than success.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
---
arch/powerpc/mm/hash_utils_64.c | 14 +++++++++-----
include/asm-powerpc/sparsemem.h | 2 +-
2 files changed, 10 insertions(+), 6 deletions(-)
Index: linux-2.6.25-rc3/arch/powerpc/mm/hash_utils_64.c
===================================================================
--- linux-2.6.25-rc3.orig/arch/powerpc/mm/hash_utils_64.c 2008-03-05 10:14:28.000000000 -0800
+++ linux-2.6.25-rc3/arch/powerpc/mm/hash_utils_64.c 2008-03-05 10:18:55.000000000 -0800
@@ -192,7 +192,7 @@ int htab_bolt_mapping(unsigned long vsta
return ret < 0 ? ret : 0;
}
-static void htab_remove_mapping(unsigned long vstart, unsigned long vend,
+static int htab_remove_mapping(unsigned long vstart, unsigned long vend,
int psize, int ssize)
{
unsigned long vaddr;
@@ -202,12 +202,15 @@ static void htab_remove_mapping(unsigned
step = 1 << shift;
if (!ppc_md.hpte_removebolted) {
- printk("Sub-arch doesn't implement hpte_removebolted\n");
- return;
+ printk(KERN_WARNING "Sub-arch doesn't implement "
+ "hpte_removebolted\n");
+ return -EINVAL;
}
for (vaddr = vstart; vaddr < vend; vaddr += step)
ppc_md.hpte_removebolted(vaddr, psize, ssize);
+
+ return 0;
}
static int __init htab_dt_scan_seg_sizes(unsigned long node,
@@ -449,9 +452,10 @@ void create_section_mapping(unsigned lon
mmu_linear_psize, mmu_kernel_ssize));
}
-void remove_section_mapping(unsigned long start, unsigned long end)
+int remove_section_mapping(unsigned long start, unsigned long end)
{
- htab_remove_mapping(start, end, mmu_linear_psize, mmu_kernel_ssize);
+ return htab_remove_mapping(start, end, mmu_linear_psize,
+ mmu_kernel_ssize);
}
#endif /* CONFIG_MEMORY_HOTPLUG */
Index: linux-2.6.25-rc3/include/asm-powerpc/sparsemem.h
===================================================================
--- linux-2.6.25-rc3.orig/include/asm-powerpc/sparsemem.h 2008-03-05 10:14:31.000000000 -0800
+++ linux-2.6.25-rc3/include/asm-powerpc/sparsemem.h 2008-03-05 10:19:09.000000000 -0800
@@ -15,7 +15,7 @@
#ifdef CONFIG_MEMORY_HOTPLUG
extern void create_section_mapping(unsigned long start, unsigned long end);
-extern void remove_section_mapping(unsigned long start, unsigned long end);
+extern int remove_section_mapping(unsigned long start, unsigned long end);
#ifdef CONFIG_NUMA
extern int hot_add_scn_to_nid(unsigned long scn_addr);
#else
^ permalink raw reply
* [PATCH 3/5] [PPC] hotplug memory notifications for ppc
From: Badari Pulavarty @ 2008-03-28 0:38 UTC (permalink / raw)
To: lkml; +Cc: linuxppc-dev, Andrew Morton, paulus, Yasunori Goto
In-Reply-To: <1206664406.19368.2.camel@dyn9047017100.beaverton.ibm.com>
Hotplug memory notifier for ppc64. This gets invoked by writing
the device-node that needs to be removed to /proc/ppc64/ofdt.
We need to adjust the sections and remove sysfs entries by
calling __remove_pages(). Then call arch specific code to
get rid of htab mappings for the section of memory.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Reviewed-by: Michael Ellerman <michael@ellerman.id.au>
---
arch/powerpc/platforms/pseries/Makefile | 1
arch/powerpc/platforms/pseries/hotplug-memory.c | 98 ++++++++++++++++++++++++
2 files changed, 99 insertions(+)
Index: linux-2.6.25-rc2/arch/powerpc/platforms/pseries/hotplug-memory.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.25-rc2/arch/powerpc/platforms/pseries/hotplug-memory.c 2008-02-29 09:25:14.000000000 -0800
@@ -0,0 +1,98 @@
+/*
+ * pseries Memory Hotplug infrastructure.
+ *
+ * Copyright (C) 2008 Badari Pulavarty, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/of.h>
+#include <asm/firmware.h>
+#include <asm/machdep.h>
+#include <asm/pSeries_reconfig.h>
+
+static int pseries_remove_memory(struct device_node *np)
+{
+ const char *type;
+ const unsigned int *my_index;
+ const unsigned int *regs;
+ u64 start_pfn, start;
+ struct zone *zone;
+ int ret = -EINVAL;
+
+ /*
+ * Check to see if we are actually removing memory
+ */
+ type = of_get_property(np, "device_type", NULL);
+ if (type == NULL || strcmp(type, "memory") != 0)
+ return 0;
+
+ /*
+ * Find the memory index and size of the removing section
+ */
+ my_index = of_get_property(np, "ibm,my-drc-index", NULL);
+ if (!my_index)
+ return ret;
+
+ regs = of_get_property(np, "reg", NULL);
+ if (!regs)
+ return ret;
+
+ start_pfn = section_nr_to_pfn(*my_index & 0xffff);
+ zone = page_zone(pfn_to_page(start_pfn));
+
+ /*
+ * Remove section mappings and sysfs entries for the
+ * section of the memory we are removing.
+ *
+ * NOTE: Ideally, this should be done in generic code like
+ * remove_memory(). But remove_memory() gets called by writing
+ * to sysfs "state" file and we can't remove sysfs entries
+ * while writing to it. So we have to defer it to here.
+ */
+ ret = __remove_pages(zone, start_pfn, regs[3] >> PAGE_SHIFT);
+ if (ret)
+ return ret;
+
+ /*
+ * Remove htab bolted mappings for this section of memory
+ */
+ start = (unsigned long)__va(start_pfn << PAGE_SHIFT);
+ ret = remove_section_mapping(start, start + regs[3]);
+ return ret;
+}
+
+static int pseries_memory_notifier(struct notifier_block *nb,
+ unsigned long action, void *node)
+{
+ int err = NOTIFY_OK;
+
+ switch (action) {
+ case PSERIES_RECONFIG_ADD:
+ break;
+ case PSERIES_RECONFIG_REMOVE:
+ if (pseries_remove_memory(node))
+ err = NOTIFY_BAD;
+ break;
+ default:
+ err = NOTIFY_DONE;
+ break;
+ }
+ return err;
+}
+
+static struct notifier_block pseries_mem_nb = {
+ .notifier_call = pseries_memory_notifier,
+};
+
+static int __init pseries_memory_hotplug_init(void)
+{
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ pSeries_reconfig_notifier_register(&pseries_mem_nb);
+
+ return 0;
+}
+machine_device_initcall(pseries, pseries_memory_hotplug_init);
Index: linux-2.6.25-rc2/arch/powerpc/platforms/pseries/Makefile
===================================================================
--- linux-2.6.25-rc2.orig/arch/powerpc/platforms/pseries/Makefile 2008-02-28 08:15:53.000000000 -0800
+++ linux-2.6.25-rc2/arch/powerpc/platforms/pseries/Makefile 2008-02-28 08:17:57.000000000 -0800
@@ -14,6 +14,7 @@ obj-$(CONFIG_PCI) += pci.o pci_dlpar.o
obj-$(CONFIG_PCI_MSI) += msi.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug-cpu.o
+obj-$(CONFIG_MEMORY_HOTPLUG) += hotplug-memory.o
obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o
obj-$(CONFIG_HVCS) += hvcserver.o
^ permalink raw reply
* [PATCH 4/5] [PPC] update lmb for hotplug memory add/remove
From: Badari Pulavarty @ 2008-03-28 0:39 UTC (permalink / raw)
To: lkml; +Cc: linuxppc-dev, Andrew Morton, paulus, Yasunori Goto
In-Reply-To: <1206664406.19368.2.camel@dyn9047017100.beaverton.ibm.com>
ppc kernel maintains information about logical memory blocks in
lmb.memory structure at the boot time. Its not updated for
hotplug memory add/remove. hotplug memory notifier for memory
add/remove now updates lmb.memory.
This information is useful for eHEA driver to find out the memory
layout and holes.
NOTE: No special locking is needed for lmb_add() and lmb_remove().
Calls to these are serialized by caller. (pSeries_reconfig_chain).
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
---
arch/powerpc/platforms/pseries/hotplug-memory.c | 43 +++++++++++++++
include/linux/lmb.h | 3 -
lib/lmb.c | 66 ++++++++++++++++++++----
3 files changed, 102 insertions(+), 10 deletions(-)
Index: linux-2.6.25-rc3/lib/lmb.c
===================================================================
--- linux-2.6.25-rc3.orig/lib/lmb.c 2008-03-05 10:44:29.000000000 -0800
+++ linux-2.6.25-rc3/lib/lmb.c 2008-03-05 10:44:56.000000000 -0800
@@ -54,14 +54,13 @@ void lmb_dump_all(void)
#endif /* DEBUG */
}
-static unsigned long __init lmb_addrs_overlap(u64 base1,
- u64 size1, u64 base2, u64 size2)
+static unsigned long lmb_addrs_overlap(u64 base1, u64 size1, u64 base2,
+ u64 size2)
{
return ((base1 < (base2+size2)) && (base2 < (base1+size1)));
}
-static long __init lmb_addrs_adjacent(u64 base1, u64 size1,
- u64 base2, u64 size2)
+static long lmb_addrs_adjacent(u64 base1, u64 size1, u64 base2, u64 size2)
{
if (base2 == base1 + size1)
return 1;
@@ -71,7 +70,7 @@ static long __init lmb_addrs_adjacent(u6
return 0;
}
-static long __init lmb_regions_adjacent(struct lmb_region *rgn,
+static long lmb_regions_adjacent(struct lmb_region *rgn,
unsigned long r1, unsigned long r2)
{
u64 base1 = rgn->region[r1].base;
@@ -82,7 +81,7 @@ static long __init lmb_regions_adjacent(
return lmb_addrs_adjacent(base1, size1, base2, size2);
}
-static void __init lmb_remove_region(struct lmb_region *rgn, unsigned long r)
+static void lmb_remove_region(struct lmb_region *rgn, unsigned long r)
{
unsigned long i;
@@ -94,7 +93,7 @@ static void __init lmb_remove_region(str
}
/* Assumption: base addr of region 1 < base addr of region 2 */
-static void __init lmb_coalesce_regions(struct lmb_region *rgn,
+static void lmb_coalesce_regions(struct lmb_region *rgn,
unsigned long r1, unsigned long r2)
{
rgn->region[r1].size += rgn->region[r2].size;
@@ -129,7 +128,7 @@ void __init lmb_analyze(void)
}
/* This routine called with relocation disabled. */
-static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
+static long lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
{
unsigned long coalesced = 0;
long adjacent, i;
@@ -195,7 +194,7 @@ static long __init lmb_add_region(struct
}
/* This routine may be called with relocation disabled. */
-long __init lmb_add(u64 base, u64 size)
+long lmb_add(u64 base, u64 size)
{
struct lmb_region *_rgn = &(lmb.memory);
@@ -207,6 +206,55 @@ long __init lmb_add(u64 base, u64 size)
}
+long lmb_remove(u64 base, u64 size)
+{
+ struct lmb_region *rgn = &(lmb.memory);
+ u64 rgnbegin, rgnend;
+ u64 end = base + size;
+ int i;
+
+ rgnbegin = rgnend = 0; /* supress gcc warnings */
+
+ /* Find the region where (base, size) belongs to */
+ for (i=0; i < rgn->cnt; i++) {
+ rgnbegin = rgn->region[i].base;
+ rgnend = rgnbegin + rgn->region[i].size;
+
+ if ((rgnbegin <= base) && (end <= rgnend))
+ break;
+ }
+
+ /* Didn't find the region */
+ if (i == rgn->cnt)
+ return -1;
+
+ /* Check to see if we are removing entire region */
+ if ((rgnbegin == base) && (rgnend == end)) {
+ lmb_remove_region(rgn, i);
+ return 0;
+ }
+
+ /* Check to see if region is matching at the front */
+ if (rgnbegin == base) {
+ rgn->region[i].base = end;
+ rgn->region[i].size -= size;
+ return 0;
+ }
+
+ /* Check to see if the region is matching at the end */
+ if (rgnend == end) {
+ rgn->region[i].size -= size;
+ return 0;
+ }
+
+ /*
+ * We need to split the entry - adjust the current one to the
+ * beginging of the hole and add the region after hole.
+ */
+ rgn->region[i].size = base - rgn->region[i].base;
+ return lmb_add_region(rgn, end, rgnend - end);
+}
+
long __init lmb_reserve(u64 base, u64 size)
{
struct lmb_region *_rgn = &(lmb.reserved);
Index: linux-2.6.25-rc3/arch/powerpc/platforms/pseries/hotplug-memory.c
===================================================================
--- linux-2.6.25-rc3.orig/arch/powerpc/platforms/pseries/hotplug-memory.c 2008-03-05 10:44:51.000000000 -0800
+++ linux-2.6.25-rc3/arch/powerpc/platforms/pseries/hotplug-memory.c 2008-03-05 10:45:06.000000000 -0800
@@ -10,6 +10,7 @@
*/
#include <linux/of.h>
+#include <linux/lmb.h>
#include <asm/firmware.h>
#include <asm/machdep.h>
#include <asm/pSeries_reconfig.h>
@@ -58,6 +59,11 @@ static int pseries_remove_memory(struct
return ret;
/*
+ * Update memory regions for memory remove
+ */
+ lmb_remove(start_pfn << PAGE_SHIFT, regs[3]);
+
+ /*
* Remove htab bolted mappings for this section of memory
*/
start = (unsigned long)__va(start_pfn << PAGE_SHIFT);
@@ -65,6 +71,41 @@ static int pseries_remove_memory(struct
return ret;
}
+static int pseries_add_memory(struct device_node *np)
+{
+ const char *type;
+ const unsigned int *my_index;
+ const unsigned int *regs;
+ u64 start_pfn;
+ int ret = -EINVAL;
+
+ /*
+ * Check to see if we are actually adding memory
+ */
+ type = of_get_property(np, "device_type", NULL);
+ if (type == NULL || strcmp(type, "memory") != 0)
+ return 0;
+
+ /*
+ * Find the memory index and size of the removing section
+ */
+ my_index = of_get_property(np, "ibm,my-drc-index", NULL);
+ if (!my_index)
+ return ret;
+
+ regs = of_get_property(np, "reg", NULL);
+ if (!regs)
+ return ret;
+
+ start_pfn = section_nr_to_pfn(*my_index & 0xffff);
+
+ /*
+ * Update memory region to represent the memory add
+ */
+ lmb_add(start_pfn << PAGE_SHIFT, regs[3]);
+ return 0;
+}
+
static int pseries_memory_notifier(struct notifier_block *nb,
unsigned long action, void *node)
{
@@ -72,6 +113,8 @@ static int pseries_memory_notifier(struc
switch (action) {
case PSERIES_RECONFIG_ADD:
+ if (pseries_add_memory(node))
+ err = NOTIFY_BAD;
break;
case PSERIES_RECONFIG_REMOVE:
if (pseries_remove_memory(node))
Index: linux-2.6.25-rc3/include/linux/lmb.h
===================================================================
--- linux-2.6.25-rc3.orig/include/linux/lmb.h 2008-03-05 10:44:29.000000000 -0800
+++ linux-2.6.25-rc3/include/linux/lmb.h 2008-03-05 10:44:56.000000000 -0800
@@ -40,7 +40,8 @@ extern struct lmb lmb;
extern void __init lmb_init(void);
extern void __init lmb_analyze(void);
-extern long __init lmb_add(u64 base, u64 size);
+extern long lmb_add(u64 base, u64 size);
+extern long lmb_remove(u64 base, u64 size);
extern long __init lmb_reserve(u64 base, u64 size);
extern u64 __init lmb_alloc(u64 size, u64 align);
extern u64 __init lmb_alloc_base(u64 size,
^ permalink raw reply
* [PATCH 5/5] [PPC] provide walk_memory_resource() for ppc
From: Badari Pulavarty @ 2008-03-28 0:39 UTC (permalink / raw)
To: lkml; +Cc: linuxppc-dev, Andrew Morton, paulus, Yasunori Goto
In-Reply-To: <1206664406.19368.2.camel@dyn9047017100.beaverton.ibm.com>
Provide walk_memory_resource() for ppc64. PPC maintains
logic memory region mapping in lmb.memory structures. Walk
through these structures and do the callbacks for the
contiguous chunks.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
---
arch/powerpc/mm/mem.c | 30 +++++++++++++++++++++++-------
include/linux/lmb.h | 1 +
lib/lmb.c | 33 +++++++++++++++++++++++++++++++++
3 files changed, 57 insertions(+), 7 deletions(-)
Index: linux-2.6.25-rc3/lib/lmb.c
===================================================================
--- linux-2.6.25-rc3.orig/lib/lmb.c 2008-03-05 10:28:55.000000000 -0800
+++ linux-2.6.25-rc3/lib/lmb.c 2008-03-05 10:34:01.000000000 -0800
@@ -416,3 +416,36 @@ int __init lmb_is_reserved(u64 addr)
}
return 0;
}
+
+/*
+ * Given a <base, len>, find which memory regions belong to this range.
+ * Adjust the request and return a contiguous chunk.
+ */
+int lmb_find(struct lmb_property *res)
+{
+ int i;
+ u64 rstart, rend;
+
+ rstart = res->base;
+ rend = rstart + res->size - 1;
+
+ for (i = 0; i < lmb.memory.cnt; i++) {
+ u64 start = lmb.memory.region[i].base;
+ u64 end = start + lmb.memory.region[i].size - 1;
+
+ if (start > rend)
+ return -1;
+
+ if ((end >= rstart) && (start < rend)) {
+ /* adjust the request */
+ if (rstart < start)
+ rstart = start;
+ if (rend > end)
+ rend = end;
+ res->base = rstart;
+ res->size = rend - rstart + 1;
+ return 0;
+ }
+ }
+ return -1;
+}
Index: linux-2.6.25-rc3/arch/powerpc/mm/mem.c
===================================================================
--- linux-2.6.25-rc3.orig/arch/powerpc/mm/mem.c 2008-03-05 10:14:28.000000000 -0800
+++ linux-2.6.25-rc3/arch/powerpc/mm/mem.c 2008-03-05 10:32:16.000000000 -0800
@@ -148,19 +148,35 @@ out:
/*
* walk_memory_resource() needs to make sure there is no holes in a given
- * memory range. On PPC64, since this range comes from /sysfs, the range
- * is guaranteed to be valid, non-overlapping and can not contain any
- * holes. By the time we get here (memory add or remove), /proc/device-tree
- * is updated and correct. Only reason we need to check against device-tree
- * would be if we allow user-land to specify a memory range through a
- * system call/ioctl etc. instead of doing offline/online through /sysfs.
+ * memory range. PPC64 does not maintain the memory layout in /proc/iomem.
+ * Instead it maintains it in lmb.memory structures. Walk through the
+ * memory regions, find holes and callback for contiguous regions.
*/
int
walk_memory_resource(unsigned long start_pfn, unsigned long nr_pages, void *arg,
int (*func)(unsigned long, unsigned long, void *))
{
- return (*func)(start_pfn, nr_pages, arg);
+ struct lmb_property res;
+ unsigned long pfn, len;
+ u64 end;
+ int ret = -1;
+
+ res.base = (u64) start_pfn << PAGE_SHIFT;
+ res.size = (u64) nr_pages << PAGE_SHIFT;
+
+ end = res.base + res.size - 1;
+ while ((res.base < end) && (lmb_find(&res) >= 0)) {
+ pfn = (unsigned long)(res.base >> PAGE_SHIFT);
+ len = (unsigned long)(res.size >> PAGE_SHIFT);
+ ret = (*func)(pfn, len, arg);
+ if (ret)
+ break;
+ res.base += (res.size + 1);
+ res.size = (end - res.base + 1);
+ }
+ return ret;
}
+EXPORT_SYMBOL_GPL(walk_memory_resource);
#endif /* CONFIG_MEMORY_HOTPLUG */
Index: linux-2.6.25-rc3/include/linux/lmb.h
===================================================================
--- linux-2.6.25-rc3.orig/include/linux/lmb.h 2008-03-05 10:30:06.000000000 -0800
+++ linux-2.6.25-rc3/include/linux/lmb.h 2008-03-05 10:33:12.000000000 -0800
@@ -52,6 +52,7 @@ extern u64 __init lmb_phys_mem_size(void
extern u64 __init lmb_end_of_DRAM(void);
extern void __init lmb_enforce_memory_limit(u64 memory_limit);
extern int __init lmb_is_reserved(u64 addr);
+extern int lmb_find(struct lmb_property *res);
extern void lmb_dump_all(void);
^ permalink raw reply
* Re: [PATCH] [POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c
From: David Gibson @ 2008-03-27 23:56 UTC (permalink / raw)
To: Stefan Roese; +Cc: linuxppc-dev
In-Reply-To: <1206629011-28821-1-git-send-email-sr@denx.de>
On Thu, Mar 27, 2008 at 03:43:31PM +0100, Stefan Roese wrote:
> This patch creates a common system reset routine for all 40x and 44x
> systems. Previously only a 44x routine existed. But since this system
> reset via the debug control register is common for 40x and 44x let's
> share this code for all those platforms in ppc4xx_soc.c.
Well... they're sort of common. The source looks the same, but the
SPR number of DBCR0 is different on 40x and 44x, which is a
potentially serious gotcha.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
^ permalink raw reply
* Re: OF compatible MTD platform RAM driver ?
From: David Gibson @ 2008-03-28 0:07 UTC (permalink / raw)
To: Sergei Shtylyov; +Cc: ben, linux-mtd, linuxppc-dev
In-Reply-To: <47EB91D2.60100@ru.mvista.com>
On Thu, Mar 27, 2008 at 03:23:46PM +0300, Sergei Shtylyov wrote:
> Hello.
>
> David Gibson wrote:
>
>>>> Laurent Pinchart wrote:
>
>> [snip]
>
>>>> Heh, we've gone thru "physmap" before -- it was labelled
>>>> Linux-specific name (well, I'd agree with that).
>
>>> physmap stands for physically mapped. That doesn't sound
>>> Linux-specific to me, the fact that the MTD driver has the same name
>>> is a pure coincidence. linmap-rom and linmap-rom sound even more
>>> Linux-specific :-)
>
>> It may not be Linux specific per se, but it's a bad name, because the
>> fact that the device is physically direct mapped isn't a useful
>> distinguishing feature of the device.
>
> Yeah, it's not a propery of a device itself (yet, the device would be
> useless if this information is not supplied in the tree somehow). Yet
> remember the now ungoing discussion about "reg-shift" property for UARTs --
> some people said that the fact that this property may not be a feature of
> device is irrelevant WRT the binding. :-)
>
>> Main memory is also direct physically mapped, after all, but that's not
>> what you want to cover
>> with this description.
>
> Haven't ever seen the description of memory as a device (unless you mean
> the "memory" node which can hardly be considered proper device -- mainly
> because of their usual placement at the top of the tree, and not where a
> RAM device logically should be in the bus hierarchy).
Yes, I mean the memory node. And although it's no very likely,
there's no inherent reason a RAM device couldn't also be at the top of
the tree, on a CPU with the right sort of localbus.
>> In general how a device is wired is described by where it sits in the
>> tree, not by its properties.
>
> Oh, another argument against "reg-shift" in the Xilinx UART quarry...
> :-)
Not really. I was perhaps a bit strong, wiring information in the
properties isn't necessarily wrong, but it does need a close look.
"reg-shift" is a useful compromise.
>> It only seems like a usefully distinguishing name because it's the
>> Linux "physmap_of" driver that uses it. So in this sense it is a
>> Linux specific name after all. In fact, physmap_of is itself very
>> badly named - right now it only handles direct mapped mtds, but that's
>
> Yeah, because that's what is what it has been written for.
>
>> not inherent; it could be trivially extended to also instantiate a
>> non-direct-mapped device (as long as the underlying mtd layer
>> supported it, of course). It bears no relation at all to the
> > "physmap" driver, except historical accident.
>
> This driver resides on the "top", device mapping layer of the MTD
> hierarchy, and I don't see a point of cramming support for all the possible
> mappings into one driver vs doing it as the *separate* specific drivers in
> drivers/mtd/mapps/
Because doing it as separate drivers would mean duplicating most of
physmap_of for absolutely no reason. I'll say it again there is
*nothing* that actually relies on the direct mapping in physmap_of;
the *only* thing it does is take the device tree information and
marshal it into an initialization call for the appropriate mtd chip
drivers.
I really should get around to sending a patch to rename physmap_of to
"of_mtd.c".
> -- as it has been done in the MTD tree before "the great
> OF revolution". This is really strange idea...
The only reason mtd needs heaps of little "map drivers" (which barely
deserve the title of "driver") is because there wasn't a single
generally available source of information about where and how flash
was mapped so a whole pile of platform or sitation specific ways of
getting that information were needed. With a device tree all that can
be replaced with just getting the information from the device tree.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
^ permalink raw reply
* Re: OF compatible MTD platform RAM driver ?
From: David Gibson @ 2008-03-28 0:09 UTC (permalink / raw)
To: Laurent Pinchart; +Cc: ben, linuxppc-dev, linux-mtd
In-Reply-To: <200803271531.35401.laurentp@cse-semaphore.com>
On Thu, Mar 27, 2008 at 03:31:34PM +0100, Laurent Pinchart wrote:
> On Thursday 27 March 2008 11:03, David Gibson wrote:
> > On Thu, Mar 27, 2008 at 10:13:32AM +0100, Laurent Pinchart wrote:
> > > On Wednesday 26 March 2008 13:53, Sergei Shtylyov wrote:
> > > > Laurent Pinchart wrote:
> > [snip]
> > > > Heh, we've gone thru "physmap" before -- it was labelled
> > > > Linux-specific name (well, I'd agree with that).
> > >
> > > physmap stands for physically mapped. That doesn't sound
> > > Linux-specific to me, the fact that the MTD driver has the same name
> > > is a pure coincidence. linmap-rom and linmap-rom sound even more
> > > Linux-specific :-)
> >
> > It may not be Linux specific per se, but it's a bad name, because the
> > fact that the device is physically direct mapped isn't a useful
> > distinguishing feature of the device. Main memory is also direct
> > physically mapped, after all, but that's not what you want to cover
> > with this description. In general how a device is wired is described
> > by where it sits in the tree, not by its properties.
> >
> > It only seems like a usefully distinguishing name because it's the
> > Linux "physmap_of" driver that uses it. So in this sense it is a
> > Linux specific name after all. In fact, physmap_of is itself very
> > badly named - right now it only handles direct mapped mtds, but that's
> > not inherent; it could be trivially extended to also instantiate a
> > non-direct-mapped device (as long as the underlying mtd layer
> > supported it, of course). It bears no relation at all to the
> > "physmap" driver, except historical accident.
> >
> > > Could we agree on a name ? I'd like to submit a new patch.
> >
> > For ROMs I think just plain "rom" should be sufficient. For RAMs we
> > need something to indicate that it's memory but intended for secondary
> > storage, not as main memory. Unfortunately, I'm finding myself unable
> > to think of something.
>
> What about "storage-ram", "auxiliary-ram", "secondary-ram",
> "application-ram", "user-ram" or "ramdisk" ?
Well, I like all those better than anything previously suggested.
"storage-ram" is probably my favourite. It still doesn't seem great,
but given I've been unable to thing of something better.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
^ permalink raw reply
* Re: [PATCH] [POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c
From: Josh Boyer @ 2008-03-28 0:39 UTC (permalink / raw)
To: David Gibson; +Cc: linuxppc-dev, Stefan Roese
In-Reply-To: <20080327235618.GA16141@localhost.localdomain>
On Fri, 28 Mar 2008 10:56:18 +1100
David Gibson <david@gibson.dropbear.id.au> wrote:
> On Thu, Mar 27, 2008 at 03:43:31PM +0100, Stefan Roese wrote:
> > This patch creates a common system reset routine for all 40x and 44x
> > systems. Previously only a 44x routine existed. But since this system
> > reset via the debug control register is common for 40x and 44x let's
> > share this code for all those platforms in ppc4xx_soc.c.
>
> Well... they're sort of common. The source looks the same, but the
> SPR number of DBCR0 is different on 40x and 44x, which is a
> potentially serious gotcha.
Except that since 40x and 44x should never be built into the same
kernel. So the #defines for DBCR0 should be picked correctly from
reg_booke.h.
I thought about that too, but I can't see where it will be an issue in
practice.
josh
^ permalink raw reply
* Re: [PATCH] [POWERPC] Clean up some linker and symbol usage
From: Michael Ellerman @ 2008-03-28 0:45 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <18412.10838.984230.869068@cargo.ozlabs.ibm.com>
[-- Attachment #1: Type: text/plain, Size: 1081 bytes --]
On Fri, 2008-03-28 at 10:14 +1100, Paul Mackerras wrote:
> Kumar Gala writes:
>
> > @@ -1124,7 +1124,7 @@ void __init early_init_devtree(void *params)
> > parse_early_param();
> >
> > /* Reserve LMB regions used by kernel, initrd, dt, etc... */
> > - lmb_reserve(PHYSICAL_START, __pa(klimit) - PHYSICAL_START);
> > + lmb_reserve(__pa(_stext), _end - _stext);
>
> In the kdump case where the kernel starts at the 32MB point
> (physical), wouldn't we want to reserve the first 32MB of RAM so that
> it can't get allocated and used for random things? Doesn't that first
> 32MB contain the old kernel that we want to write out?
For kdump there is nMB of memory reserved at 32MB for the 2nd kernel,
and that's all it gets, all of the other memory is the old kernel text
or the old kernel's data.
cheers
--
Michael Ellerman
OzLabs, IBM Australia Development Lab
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
^ permalink raw reply
* [PATCH] Make pasemi_mac.c depend on PPC_PASEMI to prevent link errors
From: Michael Ellerman @ 2008-03-28 1:17 UTC (permalink / raw)
To: Jeff Garzik; +Cc: Olof Johannsson, linuxppc-dev
drivers/net/pasemi_mac.c is enabled by CONFIG_PASEMI_MAC, which depends on
PPC64 && PCI. However pasemi_mac.c uses several routines that are only
built when PPC_PASEMI is selected. This can lead to an unbuildable config:
ERROR: ".pasemi_dma_start_chan" [drivers/net/pasemi_mac.ko] undefined!
So make CONFIG_PASEMI_MAC depend on PPC_PASEMI instead of PPC64.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
---
drivers/net/Kconfig | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
Jeff, pending Olof's ack, this would be nice for 25, but is obviously
not super important.
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index fe7b5ec..3a0b20a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2635,7 +2635,7 @@ config NIU
config PASEMI_MAC
tristate "PA Semi 1/10Gbit MAC"
- depends on PPC64 && PCI
+ depends on PPC_PASEMI && PCI
select PHYLIB
select INET_LRO
help
--
1.5.2.rc1.1884.g59b20
^ permalink raw reply related
* Re: [PATCH] Make pasemi_mac.c depend on PPC_PASEMI to prevent link errors
From: Olof Johansson @ 2008-03-28 1:54 UTC (permalink / raw)
To: Michael Ellerman; +Cc: linuxppc-dev, Jeff Garzik
In-Reply-To: <c9b4b088d00e37e33907b15ac59450c04ef36112.1206666963.git.michael@ellerman.id.au>
On Fri, Mar 28, 2008 at 12:17:33PM +1100, Michael Ellerman wrote:
> drivers/net/pasemi_mac.c is enabled by CONFIG_PASEMI_MAC, which depends on
> PPC64 && PCI. However pasemi_mac.c uses several routines that are only
> built when PPC_PASEMI is selected. This can lead to an unbuildable config:
>
> ERROR: ".pasemi_dma_start_chan" [drivers/net/pasemi_mac.ko] undefined!
>
> So make CONFIG_PASEMI_MAC depend on PPC_PASEMI instead of PPC64.
>
Ah, good catch. It was OK until I introduced dma_lib under
platforms/pasemi.
> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Olof Johansson <olof@lixom.net>
-Olof
^ permalink raw reply
* Re: [PATCH] [POWERPC] Clean up some linker and symbol usage
From: Kumar Gala @ 2008-03-28 1:52 UTC (permalink / raw)
To: michael; +Cc: linuxppc-dev, Paul Mackerras
In-Reply-To: <1206665138.8173.3.camel@concordia.ozlabs.ibm.com>
On Mar 27, 2008, at 7:45 PM, Michael Ellerman wrote:
>
> On Fri, 2008-03-28 at 10:14 +1100, Paul Mackerras wrote:
>> Kumar Gala writes:
>>
>>> @@ -1124,7 +1124,7 @@ void __init early_init_devtree(void *params)
>>> parse_early_param();
>>>
>>> /* Reserve LMB regions used by kernel, initrd, dt, etc... */
>>> - lmb_reserve(PHYSICAL_START, __pa(klimit) - PHYSICAL_START);
>>> + lmb_reserve(__pa(_stext), _end - _stext);
>>
>> In the kdump case where the kernel starts at the 32MB point
>> (physical), wouldn't we want to reserve the first 32MB of RAM so that
>> it can't get allocated and used for random things? Doesn't that
>> first
>> 32MB contain the old kernel that we want to write out?
>
> For kdump there is nMB of memory reserved at 32MB for the 2nd kernel,
> and that's all it gets, all of the other memory is the old kernel text
> or the old kernel's data.
My understanding is those reservations are handled by the device tree
that is passed to the 2nd kernel.
- k
^ permalink raw reply
* RE: [PATCH] fsldma: The MPC8377MDS board device tree node for fsldma driver
From: Zhang Wei @ 2008-03-28 2:10 UTC (permalink / raw)
To: Dan Williams, Andrew Morton; +Cc: linuxppc-dev, Linux Kernel
In-Reply-To: <e9c3a7c20803271237x1b2c3a2ci6837c5e2d5288c95@mail.gmail.com>
Hi, Dan,
Sure. The patch can be just a reference to how to config and enable the =
fsldma driver in dts file on MPC83xx boards.
Thanks!
Wei.
> -----Original Message-----
> From: dan.j.williams@gmail.com=20
> [mailto:dan.j.williams@gmail.com] On Behalf Of Dan Williams
> Sent: Friday, March 28, 2008 3:38 AM
> To: Zhang Wei; Andrew Morton
> Cc: Linux Kernel; Kumar Gala; linuxppc-dev@ozlabs.org
> Subject: Re: [PATCH] fsldma: The MPC8377MDS board device tree=20
> node for fsldma driver
>=20
> On Wed, Mar 26, 2008 at 12:42 AM, Zhang Wei=20
> <wei.zhang@freescale.com> wrote:
> > The fsldma driver is tested on MPC8377MDS board.
> > The patch adds fsldma driver support into MPC8377MDS device tree.
> >
> > Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
> > ---
> > arch/powerpc/boot/dts/mpc8377_mds.dts | 27=20
> +++++++++++++++++++++++++++
> > 1 files changed, 27 insertions(+), 0 deletions(-)
>=20
> I think this patch should probably go through the powerpc tree, or
> -mm. I'll pick up the ones that touch either drivers/dma or
> crypto/async_tx.
>=20
> --
> Dan
>=20
^ permalink raw reply
* Re: [PATCH] fsldma: The MPC8377MDS board device tree node for fsldma driver
From: Kumar Gala @ 2008-03-28 2:23 UTC (permalink / raw)
To: Dan Williams; +Cc: linuxppc-dev, Andrew Morton, Linux Kernel
In-Reply-To: <e9c3a7c20803271237x1b2c3a2ci6837c5e2d5288c95@mail.gmail.com>
On Mar 27, 2008, at 2:37 PM, Dan Williams wrote:
> On Wed, Mar 26, 2008 at 12:42 AM, Zhang Wei
> <wei.zhang@freescale.com> wrote:
>> The fsldma driver is tested on MPC8377MDS board.
>> The patch adds fsldma driver support into MPC8377MDS device tree.
>>
>> Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
>> ---
>> arch/powerpc/boot/dts/mpc8377_mds.dts | 27 ++++++++++++++++++++++
>> +++++
>> 1 files changed, 27 insertions(+), 0 deletions(-)
>
> I think this patch should probably go through the powerpc tree, or
> -mm. I'll pick up the ones that touch either drivers/dma or
> crypto/async_tx.
Can you resend and CC me. I'll pick it up and push through via the
powerpc tree.
I want to make one update to the driver to support the "proper" names
we document for compatible properties.
(uugh too many things to do)
- k
^ permalink raw reply
* RE: [PATCH] fsldma: The MPC8377MDS board device tree node for fsldma driver
From: Zhang Wei @ 2008-03-28 2:25 UTC (permalink / raw)
To: Kumar Gala, Dan Williams; +Cc: linuxppc-dev, Andrew Morton, Linux Kernel
In-Reply-To: <9D668111-9774-4D45-944E-3C3C0EE47A09@kernel.crashing.org>
I'll send it to to.=20
> -----Original Message-----
> From: Kumar Gala [mailto:galak@kernel.crashing.org]=20
> Sent: Friday, March 28, 2008 10:24 AM
> To: Dan Williams
> Cc: Zhang Wei; Andrew Morton; Linux Kernel; linuxppc-dev@ozlabs.org
> Subject: Re: [PATCH] fsldma: The MPC8377MDS board device tree=20
> node for fsldma driver
>=20
>=20
> On Mar 27, 2008, at 2:37 PM, Dan Williams wrote:
> > On Wed, Mar 26, 2008 at 12:42 AM, Zhang Wei =20
> > <wei.zhang@freescale.com> wrote:
> >> The fsldma driver is tested on MPC8377MDS board.
> >> The patch adds fsldma driver support into MPC8377MDS device tree.
> >>
> >> Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
> >> ---
> >> arch/powerpc/boot/dts/mpc8377_mds.dts | 27=20
> ++++++++++++++++++++++=20
> >> +++++
> >> 1 files changed, 27 insertions(+), 0 deletions(-)
> >
> > I think this patch should probably go through the powerpc tree, or
> > -mm. I'll pick up the ones that touch either drivers/dma or
> > crypto/async_tx.
>=20
> Can you resend and CC me. I'll pick it up and push through via the =20
> powerpc tree.
>=20
> I want to make one update to the driver to support the=20
> "proper" names =20
> we document for compatible properties.
>=20
> (uugh too many things to do)
>=20
> - k
>=20
^ permalink raw reply
* Re: [PATCH 1/5] generic __remove_pages() support
From: Yasunori Goto @ 2008-03-28 2:26 UTC (permalink / raw)
To: Badari Pulavarty; +Cc: linuxppc-dev, Andrew Morton, paulus, lkml
In-Reply-To: <1206664516.19368.4.camel@dyn9047017100.beaverton.ibm.com>
Ok. Thanks.
Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com>
> Generic helper function to remove section mappings and sysfs entries
> for the section of the memory we are removing. offline_pages() correctly
> adjusted zone and marked the pages reserved.
>
> TODO: Yasunori Goto is working on patches to freeup allocations from bootmem.
>
> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
>
> ---
> include/linux/memory_hotplug.h | 6 +++-
> mm/memory_hotplug.c | 55 +++++++++++++++++++++++++++++++++++++++++
> mm/sparse.c | 45 +++++++++++++++++++++++++++++++--
> 3 files changed, 102 insertions(+), 4 deletions(-)
>
> Index: linux-2.6.25-rc5/mm/memory_hotplug.c
> ===================================================================
> --- linux-2.6.25-rc5.orig/mm/memory_hotplug.c 2008-03-21 07:00:37.000000000 -0800
> +++ linux-2.6.25-rc5/mm/memory_hotplug.c 2008-03-25 15:03:58.000000000 -0800
> @@ -102,6 +102,25 @@ static int __add_section(struct zone *zo
> return register_new_memory(__pfn_to_section(phys_start_pfn));
> }
>
> +static int __remove_section(struct zone *zone, struct mem_section *ms)
> +{
> + unsigned long flags;
> + struct pglist_data *pgdat = zone->zone_pgdat;
> + int ret = -EINVAL;
> +
> + if (!valid_section(ms))
> + return ret;
> +
> + ret = unregister_memory_section(ms);
> + if (ret)
> + return ret;
> +
> + pgdat_resize_lock(pgdat, &flags);
> + sparse_remove_one_section(zone, ms);
> + pgdat_resize_unlock(pgdat, &flags);
> + return 0;
> +}
> +
> /*
> * Reasonably generic function for adding memory. It is
> * expected that archs that support memory hotplug will
> @@ -135,6 +154,42 @@ int __add_pages(struct zone *zone, unsig
> }
> EXPORT_SYMBOL_GPL(__add_pages);
>
> +/**
> + * __remove_pages() - remove sections of pages from a zone
> + * @zone: zone from which pages need to be removed
> + * @phys_start_pfn: starting pageframe (must be aligned to start of a section)
> + * @nr_pages: number of pages to remove (must be multiple of section size)
> + *
> + * Generic helper function to remove section mappings and sysfs entries
> + * for the section of the memory we are removing. Caller needs to make
> + * sure that pages are marked reserved and zones are adjust properly by
> + * calling offline_pages().
> + */
> +int __remove_pages(struct zone *zone, unsigned long phys_start_pfn,
> + unsigned long nr_pages)
> +{
> + unsigned long i, ret = 0;
> + int sections_to_remove;
> +
> + /*
> + * We can only remove entire sections
> + */
> + BUG_ON(phys_start_pfn & ~PAGE_SECTION_MASK);
> + BUG_ON(nr_pages % PAGES_PER_SECTION);
> +
> + release_mem_region(phys_start_pfn << PAGE_SHIFT, nr_pages * PAGE_SIZE);
> +
> + sections_to_remove = nr_pages / PAGES_PER_SECTION;
> + for (i = 0; i < sections_to_remove; i++) {
> + unsigned long pfn = phys_start_pfn + i*PAGES_PER_SECTION;
> + ret = __remove_section(zone, __pfn_to_section(pfn));
> + if (ret)
> + break;
> + }
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(__remove_pages);
> +
> static void grow_zone_span(struct zone *zone,
> unsigned long start_pfn, unsigned long end_pfn)
> {
> Index: linux-2.6.25-rc5/mm/sparse.c
> ===================================================================
> --- linux-2.6.25-rc5.orig/mm/sparse.c 2008-03-21 07:00:37.000000000 -0800
> +++ linux-2.6.25-rc5/mm/sparse.c 2008-03-25 13:59:51.000000000 -0800
> @@ -198,12 +198,13 @@ static unsigned long sparse_encode_mem_m
> }
>
> /*
> - * We need this if we ever free the mem_maps. While not implemented yet,
> - * this function is included for parity with its sibling.
> + * Decode mem_map from the coded memmap
> */
> -static __attribute((unused))
> +static
> struct page *sparse_decode_mem_map(unsigned long coded_mem_map, unsigned long pnum)
> {
> + /* mask off the extra low bits of information */
> + coded_mem_map &= SECTION_MAP_MASK;
> return ((struct page *)coded_mem_map) + section_nr_to_pfn(pnum);
> }
>
> @@ -363,6 +364,28 @@ static void __kfree_section_memmap(struc
> }
> #endif /* CONFIG_SPARSEMEM_VMEMMAP */
>
> +static void free_section_usemap(struct page *memmap, unsigned long *usemap)
> +{
> + if (!usemap)
> + return;
> +
> + /*
> + * Check to see if allocation came from hot-plug-add
> + */
> + if (PageSlab(virt_to_page(usemap))) {
> + kfree(usemap);
> + if (memmap)
> + __kfree_section_memmap(memmap, PAGES_PER_SECTION);
> + return;
> + }
> +
> + /*
> + * TODO: Allocations came from bootmem - how do I free up ?
> + */
> + printk(KERN_WARNING "Not freeing up allocations from bootmem "
> + "- leaking memory\n");
> +}
> +
> /*
> * returns the number of sections whose mem_maps were properly
> * set. If this is <=0, then that means that the passed-in
> @@ -415,4 +438,20 @@ out:
> }
> return ret;
> }
> +
> +void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
> +{
> + struct page *memmap = NULL;
> + unsigned long *usemap = NULL;
> +
> + if (ms->section_mem_map) {
> + usemap = ms->pageblock_flags;
> + memmap = sparse_decode_mem_map(ms->section_mem_map,
> + __section_nr(ms));
> + ms->section_mem_map = 0;
> + ms->pageblock_flags = NULL;
> + }
> +
> + free_section_usemap(memmap, usemap);
> +}
> #endif
> Index: linux-2.6.25-rc5/include/linux/memory_hotplug.h
> ===================================================================
> --- linux-2.6.25-rc5.orig/include/linux/memory_hotplug.h 2008-03-21 07:00:36.000000000 -0800
> +++ linux-2.6.25-rc5/include/linux/memory_hotplug.h 2008-03-25 13:59:51.000000000 -0800
> @@ -8,6 +8,7 @@
> struct page;
> struct zone;
> struct pglist_data;
> +struct mem_section;
>
> #ifdef CONFIG_MEMORY_HOTPLUG
> /*
> @@ -64,9 +65,11 @@ extern int offline_pages(unsigned long,
> /* reasonably generic interface to expand the physical pages in a zone */
> extern int __add_pages(struct zone *zone, unsigned long start_pfn,
> unsigned long nr_pages);
> +extern int __remove_pages(struct zone *zone, unsigned long start_pfn,
> + unsigned long nr_pages);
>
> /*
> - * Walk thorugh all memory which is registered as resource.
> + * Walk through all memory which is registered as resource.
> * arg is (start_pfn, nr_pages, private_arg_pointer)
> */
> extern int walk_memory_resource(unsigned long start_pfn,
> @@ -188,5 +191,6 @@ extern int arch_add_memory(int nid, u64
> extern int remove_memory(u64 start, u64 size);
> extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
> int nr_pages);
> +extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms);
>
> #endif /* __LINUX_MEMORY_HOTPLUG_H */
>
>
--
Yasunori Goto
^ permalink raw reply
* v4 patch to add FSL DIU framebuffer driver
From: York Sun @ 2008-03-28 2:40 UTC (permalink / raw)
To: linux-fbdev-devel
Cc: a.p.zijlstra, linux-kernel, linuxppc-dev, scottwood, akpm
Thanks for the feedback. The following mails are the v4 patch to add Freescale DIU framebuffer driver.
York
^ permalink raw reply
* [PATCH 2/2 v4] Add DIU platform code for MPC8610HPCD
From: York Sun @ 2008-03-28 2:40 UTC (permalink / raw)
To: linux-fbdev-devel
Cc: Timur Tabi, a.p.zijlstra, linux-kernel, linuxppc-dev, scottwood,
akpm, York Sun
In-Reply-To: <12066720572314-git-send-email-yorksun@freescale.com>
Add platform code to support Freescale DIU. The platform code includes
framebuffer memory allocation, pixel format, monitor port, etc.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
---
This patch adds DIU platform support for MPC8610HPCD board, targeting 2.6.26 kernel.
arch/powerpc/configs/mpc8610_hpcd_defconfig | 198 +++++++++++++++++++++++----
arch/powerpc/platforms/86xx/mpc8610_hpcd.c | 192 +++++++++++++++++++++++++--
arch/powerpc/sysdev/fsl_soc.c | 41 ++++++
arch/powerpc/sysdev/fsl_soc.h | 23 +++
4 files changed, 415 insertions(+), 39 deletions(-)
diff --git a/arch/powerpc/configs/mpc8610_hpcd_defconfig b/arch/powerpc/configs/mpc8610_hpcd_defconfig
index 2500ef4..98cef01 100644
--- a/arch/powerpc/configs/mpc8610_hpcd_defconfig
+++ b/arch/powerpc/configs/mpc8610_hpcd_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc4
-# Thu Dec 6 16:48:56 2007
+# Linux kernel version: 2.6.25-rc5
+# Tue Mar 25 16:10:42 2008
#
# CONFIG_PPC64 is not set
@@ -29,6 +29,7 @@ CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_HARDIRQS=y
+# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
CONFIG_IRQ_PER_CPU=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_ARCH_HAS_ILOG2_U32=y
@@ -65,16 +66,20 @@ CONFIG_LOCALVERSION=""
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_PID_NS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CGROUPS is not set
+CONFIG_GROUP_SCHED=y
# CONFIG_FAIR_GROUP_SCHED is not set
+# CONFIG_RT_GROUP_SCHED is not set
+CONFIG_USER_SCHED=y
+# CONFIG_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -88,11 +93,13 @@ CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_ELF_CORE is not set
+CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
@@ -100,6 +107,13 @@ CONFIG_SLUB_DEBUG=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
@@ -122,6 +136,7 @@ CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
+CONFIG_CLASSIC_RCU=y
#
# Platform support
@@ -130,14 +145,15 @@ CONFIG_DEFAULT_IOSCHED="deadline"
# CONFIG_PPC_82xx is not set
# CONFIG_PPC_83xx is not set
CONFIG_PPC_86xx=y
-# CONFIG_PPC_MPC52xx is not set
-# CONFIG_PPC_MPC5200 is not set
+# CONFIG_PPC_MPC512x is not set
+# CONFIG_PPC_MPC5121 is not set
# CONFIG_PPC_CELL is not set
# CONFIG_PPC_CELL_NATIVE is not set
# CONFIG_PQ2ADS is not set
# CONFIG_MPC8641_HPCN is not set
CONFIG_MPC8610_HPCD=y
CONFIG_MPC8610=y
+# CONFIG_IPIC is not set
CONFIG_MPIC=y
# CONFIG_MPIC_WEIRD is not set
# CONFIG_PPC_I8259 is not set
@@ -148,7 +164,6 @@ CONFIG_MPIC=y
# CONFIG_PPC_INDIRECT_IO is not set
# CONFIG_GENERIC_IOMAP is not set
# CONFIG_CPU_FREQ is not set
-# CONFIG_CPM2 is not set
# CONFIG_FSL_ULI1575 is not set
#
@@ -164,12 +179,16 @@ CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
+# CONFIG_SCHED_HRTICK is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
+# CONFIG_IOMMU_HELPER is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_HAS_WALK_MEMORY=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_SELECT_MEMORY_MODEL=y
@@ -188,10 +207,7 @@ CONFIG_VIRT_TO_BUS=y
CONFIG_PROC_DEVICETREE=y
# CONFIG_CMDLINE_BOOL is not set
# CONFIG_PM is not set
-CONFIG_SUSPEND_UP_POSSIBLE=y
-CONFIG_HIBERNATION_UP_POSSIBLE=y
# CONFIG_SECCOMP is not set
-# CONFIG_WANT_DEVICE_TREE is not set
CONFIG_ISA_DMA_API=y
#
@@ -243,6 +259,7 @@ CONFIG_XFRM=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
@@ -311,6 +328,7 @@ CONFIG_IPV6_SIT=y
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
@@ -357,7 +375,7 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=131072
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_MISC_DEVICES=y
@@ -365,6 +383,8 @@ CONFIG_MISC_DEVICES=y
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+CONFIG_HAVE_IDE=y
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
# CONFIG_BLK_DEV_IDE is not set
@@ -432,6 +452,7 @@ CONFIG_SCSI_LOWLEVEL=y
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
@@ -462,6 +483,7 @@ CONFIG_SATA_AHCI=y
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
+# CONFIG_SATA_FSL is not set
CONFIG_PATA_ALI=y
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
@@ -485,6 +507,7 @@ CONFIG_PATA_ALI=y
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
@@ -518,7 +541,6 @@ CONFIG_DUMMY=y
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
-# CONFIG_IP1000 is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=y
@@ -534,6 +556,7 @@ CONFIG_PHYLIB=y
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
+# CONFIG_REALTEK_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
@@ -574,6 +597,7 @@ CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
+# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
@@ -585,6 +609,9 @@ CONFIG_NETDEV_1000=y
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
+# CONFIG_E1000E_ENABLED is not set
+# CONFIG_IP1000 is not set
+# CONFIG_IGB is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
@@ -610,6 +637,7 @@ CONFIG_NETDEV_10000=y
# CONFIG_NIU is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_TEHUTI is not set
+# CONFIG_BNX2X is not set
# CONFIG_TR is not set
#
@@ -623,7 +651,6 @@ CONFIG_NETDEV_10000=y
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
@@ -674,6 +701,7 @@ CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_SERIAL_NONSTANDARD is not set
+# CONFIG_NOZOMI is not set
#
# Serial drivers
@@ -748,14 +776,12 @@ CONFIG_I2C_MPC=y
#
# Miscellaneous I2C Chip support
#
-# CONFIG_SENSORS_DS1337 is not set
-# CONFIG_SENSORS_DS1374 is not set
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
-# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCF8591 is not set
-# CONFIG_SENSORS_M41T00 is not set
+# CONFIG_TPS65010 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
@@ -771,6 +797,7 @@ CONFIG_I2C_MPC=y
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
+CONFIG_THERMAL=y
# CONFIG_WATCHDOG is not set
#
@@ -798,7 +825,56 @@ CONFIG_DAB=y
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
-# CONFIG_FB is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_OF is not set
+# CONFIG_FB_CT65550 is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_IMSTT is not set
+# CONFIG_FB_VGA16 is not set
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_PM3 is not set
+CONFIG_FB_FSL_DIU=y
+# CONFIG_FB_IBM_GXT4500 is not set
+# CONFIG_FB_VIRTUAL is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
@@ -812,6 +888,16 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
CONFIG_DUMMY_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_MONO=y
+CONFIG_LOGO_LINUX_VGA16=y
+CONFIG_LOGO_LINUX_CLUT224=y
#
# Sound
@@ -859,6 +945,7 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
+# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5530 is not set
@@ -884,6 +971,7 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
+# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
@@ -901,6 +989,7 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
+# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
@@ -929,6 +1018,10 @@ CONFIG_SND_SOC_MPC8610_HPCD=y
CONFIG_SND_SOC_CS4270=y
CONFIG_SND_SOC_CS4270_VD33_ERRATA=y
+#
+# Open Sound System
+#
+# CONFIG_SOUND_PRIME is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
@@ -942,16 +1035,14 @@ CONFIG_USB_ARCH_HAS_EHCI=y
#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#
-
-#
-# USB Gadget Support
-#
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
# CONFIG_EDAC is not set
# CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
#
# Userspace I/O
@@ -970,6 +1061,7 @@ CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
@@ -977,11 +1069,9 @@ CONFIG_FS_MBCACHE=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
+# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY is not set
# CONFIG_QUOTA is not set
-# CONFIG_DNOTIFY is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
@@ -1023,8 +1113,10 @@ CONFIG_TMPFS=y
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
+# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
@@ -1114,7 +1206,6 @@ CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set
-# CONFIG_UCC_SLOW is not set
#
# Library routines
@@ -1130,7 +1221,7 @@ CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
-# CONFIG_INSTRUMENTATION is not set
+CONFIG_HAVE_LMB=y
#
# Kernel hacking
@@ -1140,7 +1231,7 @@ CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
@@ -1149,6 +1240,7 @@ CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_SLUB_DEBUG_ON is not set
+# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
@@ -1162,14 +1254,15 @@ CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
-CONFIG_FORCED_INLINING=y
# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUGGER is not set
+# CONFIG_VIRQ_DEBUG is not set
# CONFIG_BDI_SWITCH is not set
# CONFIG_PPC_EARLY_DEBUG is not set
@@ -1179,5 +1272,50 @@ CONFIG_FORCED_INLINING=y
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
-# CONFIG_CRYPTO is not set
+CONFIG_CRYPTO=y
+# CONFIG_CRYPTO_SEQIV is not set
+# CONFIG_CRYPTO_MANAGER is not set
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_LZO is not set
+CONFIG_CRYPTO_HW=y
+# CONFIG_CRYPTO_DEV_HIFN_795X is not set
# CONFIG_PPC_CLOCK is not set
+CONFIG_PPC_LIB_RHEAP=y
diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
index 0b07485..ffa4f7d 100644
--- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
+++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
@@ -3,11 +3,12 @@
*
* Initial author: Xianghua Xiao <x.xiao@freescale.com>
* Recode: Jason Jin <jason.jin@freescale.com>
+ * York Sun <yorksun@freescale.com>
*
* Rewrite the interrupt routing. remove the 8259PIC support,
* All the integrated device in ULI use sideband interrupt.
*
- * Copyright 2007 Freescale Semiconductor Inc.
+ * Copyright 2008 Freescale Semiconductor Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -38,6 +39,8 @@
#include <sysdev/fsl_pci.h>
#include <sysdev/fsl_soc.h>
+static unsigned char *pixis_bdcfg0, *pixis_arch;
+
static struct of_device_id __initdata mpc8610_ids[] = {
{ .compatible = "fsl,mpc8610-immr", },
{}
@@ -52,8 +55,7 @@ static int __init mpc8610_declare_of_platform_devices(void)
}
machine_device_initcall(mpc86xx_hpcd, mpc8610_declare_of_platform_devices);
-void __init
-mpc86xx_hpcd_init_irq(void)
+void __init mpc86xx_hpcd_init_irq(void)
{
struct mpic *mpic1;
struct device_node *np;
@@ -161,12 +163,158 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5288, final_uli5288);
#endif /* CONFIG_PCI */
-static void __init
-mpc86xx_hpcd_setup_arch(void)
+#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
+
+static u32 get_busfreq(void)
{
-#ifdef CONFIG_PCI
- struct device_node *np;
+ struct device_node *node;
+
+ u32 fs_busfreq = 0;
+ node = of_find_node_by_type(NULL, "cpu");
+ if (node) {
+ unsigned int size;
+ const unsigned int *prop =
+ of_get_property(node, "bus-frequency", &size);
+ if (prop)
+ fs_busfreq = *prop;
+ of_node_put(node);
+ };
+ return fs_busfreq;
+}
+
+unsigned int mpc8610hpcd_get_pixel_format(unsigned int bits_per_pixel,
+ int monitor_port)
+{
+ static const unsigned long pixelformat[][3] = {
+ {0x88882317, 0x88083218, 0x65052119},
+ {0x88883316, 0x88082219, 0x65053118},
+ };
+ unsigned int pix_fmt, arch_monitor;
+
+ arch_monitor = ((*pixis_arch == 0x01) && (monitor_port == 0))? 0 : 1;
+ /* DVI port for board version 0x01 */
+
+ if (bits_per_pixel == 32)
+ pix_fmt = pixelformat[arch_monitor][0];
+ else if (bits_per_pixel == 24)
+ pix_fmt = pixelformat[arch_monitor][1];
+ else if (bits_per_pixel == 16)
+ pix_fmt = pixelformat[arch_monitor][2];
+ else
+ pix_fmt = pixelformat[1][0];
+
+ return pix_fmt;
+}
+
+void mpc8610hpcd_set_gamma_table(int monitor_port, char *gamma_table_base)
+{
+ int i;
+ if (monitor_port == 2) { /* dual link LVDS */
+ for (i = 0; i < 256*3; i++)
+ gamma_table_base[i] = (gamma_table_base[i] << 2) |
+ ((gamma_table_base[i] >> 6) & 0x03);
+ }
+}
+
+void mpc8610hpcd_set_monitor_port(int monitor_port)
+{
+ static const u8 bdcfg[] = {0xBD, 0xB5, 0xA5};
+ if (monitor_port < 3)
+ *pixis_bdcfg0 = bdcfg[monitor_port];
+}
+
+void mpc8610hpcd_set_pixel_clock(unsigned int pixclock)
+{
+ u32 __iomem *clkdvdr;
+ u32 temp;
+ /* variables for pixel clock calcs */
+ ulong bestval, bestfreq, speed_ccb, minpixclock, maxpixclock;
+ ulong pixval;
+ long err;
+ int i;
+
+ clkdvdr = ioremap(get_immrbase() + 0xe0800, sizeof(u32));
+ if (!clkdvdr) {
+ printk(KERN_ERR "Err: can't map clock divider register!\n");
+ return;
+ }
+
+ /* Pixel Clock configuration */
+ pr_debug("DIU: Bus Frequency = %d\n", get_busfreq());
+ speed_ccb = get_busfreq();
+
+ /* Calculate the pixel clock with the smallest error */
+ /* calculate the following in steps to avoid overflow */
+ pr_debug("DIU pixclock in ps - %d\n", pixclock);
+ temp = 1000000000/pixclock;
+ temp *= 1000;
+ pixclock = temp;
+ pr_debug("DIU pixclock freq - %u\n", pixclock);
+
+ temp = pixclock * 5 / 100;
+ pr_debug("deviation = %d\n", temp);
+ minpixclock = pixclock - temp;
+ maxpixclock = pixclock + temp;
+ pr_debug("DIU minpixclock - %lu\n", minpixclock);
+ pr_debug("DIU maxpixclock - %lu\n", maxpixclock);
+ pixval = speed_ccb/pixclock;
+ pr_debug("DIU pixval = %lu\n", pixval);
+
+ err = 100000000;
+ bestval = pixval;
+ pr_debug("DIU bestval = %lu\n", bestval);
+
+ bestfreq = 0;
+ for (i = -1; i <= 1; i++) {
+ temp = speed_ccb / ((pixval+i) + 1);
+ pr_debug("DIU test pixval i= %d, pixval=%lu, temp freq. = %u\n",
+ i, pixval, temp);
+ if ((temp < minpixclock) || (temp > maxpixclock))
+ pr_debug("DIU exceeds monitor range (%lu to %lu)\n",
+ minpixclock, maxpixclock);
+ else if (abs(temp - pixclock) < err) {
+ pr_debug("Entered the else if block %d\n", i);
+ err = abs(temp - pixclock);
+ bestval = pixval+i;
+ bestfreq = temp;
+ }
+ }
+
+ pr_debug("DIU chose = %lx\n", bestval);
+ pr_debug("DIU error = %ld\n NomPixClk ", err);
+ pr_debug("DIU: Best Freq = %lx\n", bestfreq);
+ /* Modify PXCLK in GUTS CLKDVDR */
+ pr_debug("DIU: Current value of CLKDVDR = 0x%08x\n", (*clkdvdr));
+ temp = (*clkdvdr) & 0x2000FFFF;
+ *clkdvdr = temp; /* turn off clock */
+ *clkdvdr = temp | 0x80000000 | (((bestval) & 0x1F) << 16);
+ pr_debug("DIU: Modified value of CLKDVDR = 0x%08x\n", (*clkdvdr));
+ iounmap(clkdvdr);
+}
+
+ssize_t mpc8610hpcd_show_monitor_port(int monitor_port, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE,
+ "%c0 - DVI\n"
+ "%c1 - Single link LVDS\n"
+ "%c2 - Dual link LVDS\n",
+ monitor_port == 0 ? '*' : ' ',
+ monitor_port == 1 ? '*' : ' ',
+ monitor_port == 2 ? '*' : ' ');
+}
+
+int mpc8610hpcd_set_sysfs_monitor_port(int val)
+{
+ return val < 3 ? val : 0;
+}
+
#endif
+
+static void __init mpc86xx_hpcd_setup_arch(void)
+{
+ struct resource r;
+ struct device_node *np;
+
if (ppc_md.progress)
ppc_md.progress("mpc86xx_hpcd_setup_arch()", 0);
@@ -183,6 +331,33 @@ mpc86xx_hpcd_setup_arch(void)
}
}
#endif
+#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
+ preallocate_diu_videomemory();
+ diu_ops.get_pixel_format = mpc8610hpcd_get_pixel_format;
+ diu_ops.set_gamma_table = mpc8610hpcd_set_gamma_table;
+ diu_ops.set_monitor_port = mpc8610hpcd_set_monitor_port;
+ diu_ops.set_pixel_clock = mpc8610hpcd_set_pixel_clock;
+ diu_ops.show_monitor_port = mpc8610hpcd_show_monitor_port;
+ diu_ops.set_sysfs_monitor_port = mpc8610hpcd_set_sysfs_monitor_port;
+#endif
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,fpga-pixis");
+ if (np) {
+ of_address_to_resource(np, 0, &r);
+ of_node_put(np);
+ pixis_bdcfg0 = ioremap(r.start + 0x00000008, sizeof(u8));
+ if (!pixis_bdcfg0) {
+ printk(KERN_ERR "Err: can't map FPGA cfg register!\n");
+ return;
+ }
+ pixis_arch = ioremap(r.start + 0x00000001, sizeof(u8));
+ if (!pixis_arch) {
+ printk(KERN_ERR "Err: can't map FPGA arch register!\n");
+ return;
+ }
+ } else
+ printk(KERN_ERR "Err: "
+ "can't find device node 'fsl,fpga-pixis'\n");
printk("MPC86xx HPCD board from Freescale Semiconductor\n");
}
@@ -200,8 +375,7 @@ static int __init mpc86xx_hpcd_probe(void)
return 0;
}
-long __init
-mpc86xx_time_init(void)
+long __init mpc86xx_time_init(void)
{
unsigned int temp;
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 2c5388c..38a52c9 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -1438,3 +1438,44 @@ void fsl_rstcr_restart(char *cmd)
while (1) ;
}
#endif
+
+#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
+struct platform_diu_data_ops diu_ops = {
+ .diu_size = 1280 * 1024 * 4, /* default one 1280x1024 buffer */
+};
+EXPORT_SYMBOL(diu_ops);
+
+int __init preallocate_diu_videomemory(void)
+{
+ pr_debug("diu_size=%lu\n", diu_ops.diu_size);
+
+ diu_ops.diu_mem = __alloc_bootmem(diu_ops.diu_size, 8, 0);
+ if (!diu_ops.diu_mem) {
+ printk(KERN_ERR "fsl-diu: cannot allocate %lu bytes\n",
+ diu_ops.diu_size);
+ return -ENOMEM;
+ }
+
+ printk(KERN_INFO "%s: diu_mem=%p\n", __func__, diu_ops.diu_mem);
+
+ rh_init(&diu_ops.diu_rh_info, 4096, ARRAY_SIZE(diu_ops.diu_rh_block),
+ diu_ops.diu_rh_block);
+ return rh_attach_region(&diu_ops.diu_rh_info,
+ (unsigned long) diu_ops.diu_mem,
+ diu_ops.diu_size);
+}
+
+static int __init early_parse_diufb(char *p)
+{
+ if (!p)
+ return 1;
+
+ diu_ops.diu_size = _ALIGN_UP(memparse(p, &p), 8);
+
+ printk(KERN_INFO "%s: diu_size=%lu\n", __func__, diu_ops.diu_size);
+
+ return 0;
+}
+early_param("diufb", early_parse_diufb);
+
+#endif
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index 63e7db3..bdc6ca1 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -16,5 +16,28 @@ extern int fsl_spi_init(struct spi_board_info *board_infos,
void (*deactivate_cs)(u8 cs, u8 polarity));
extern void fsl_rstcr_restart(char *cmd);
+
+#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
+#include <linux/bootmem.h>
+#include <asm/rheap.h>
+struct platform_diu_data_ops {
+ rh_block_t diu_rh_block[16];
+ rh_info_t diu_rh_info;
+ unsigned long diu_size;
+ void *diu_mem;
+
+ unsigned int (*get_pixel_format) (unsigned int bits_per_pixel,
+ int monitor_port);
+ void (*set_gamma_table) (int monitor_port, char *gamma_table_base);
+ void (*set_monitor_port) (int monitor_port);
+ void (*set_pixel_clock) (unsigned int pixclock);
+ ssize_t (*show_monitor_port) (int monitor_port, char *buf);
+ int (*set_sysfs_monitor_port) (int val);
+};
+
+extern struct platform_diu_data_ops diu_ops;
+int __init preallocate_diu_videomemory(void);
+#endif
+
#endif
#endif
--
1.5.2.2
^ permalink raw reply related
* [PATCH 1/2 v4] Driver for Freescale 8610 and 5121 DIU
From: York Sun @ 2008-03-28 2:40 UTC (permalink / raw)
To: linux-fbdev-devel
Cc: Timur Tabi, a.p.zijlstra, linux-kernel, linuxppc-dev, scottwood,
akpm, York Sun
In-Reply-To: <12066720572512-git-send-email-yorksun@freescale.com>
The following features are supported:
plane 0 works as a regular frame buffer, can be accessed by /dev/fb0
plane 1 has two AOIs (area of interest), can be accessed by /dev/fb1 and /dev/fb2
plane 2 has two AOIs, can be accessed by /dev/fb3 and /dev/fb4
Special ioctls support AOIs
All /dev/fb* can be used as regular frame buffer devices, except hardware change can
only be made through /dev/fb0. Changing pixel clock has no effect on other fbs.
Limitation of usage of AOIs:
AOIs on the same plane can not be horizonally overlapped
AOIs have horizonal order, i.e. AOI0 should be always on top of AOI1
AOIs can not beyond phisical display area. Application should check AOI geometry
before changing physical resolution on /dev/fb0
required command line parameters to preallocate memory for frame buffer
diufb=15M
optional command line parameters to set modes and monitor
video=fslfb:[resolution][,bpp][,monitor]
Syntax:
Resolution
xres x yres-bpp@refresh_rate, the -bpp and @refresh_rate are optional
eg, 1024x768, 1280x1024, 1280x1024-32, 1280x1024@60, 1280x1024-32@60, 1280x480-32@60
Bpp
bpp=32, bpp=24, or bpp=16
Monitor
monitor=0, monitor=1, monitor=2
0 is DVI
1 is Single link LVDS
2 is Double link LVDS
Note: switching monitor is a board feather, not DIU feather. MPC8610HPCD has three
monitor ports to swtich to. MPC5121ADS doesn't have additional monitor port. So switching
monirot port for MPC5121ADS has no effect.
If compiled as a module, it takes pamameters mode, bpp, monitor with the same syntax above.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
---
This patch addes new feature of Freescale Display Unit framebuffer driver, targeting 2.6.26 kernel.
Documentation/powerpc/booting-without-of.txt | 33 +
arch/powerpc/boot/dts/mpc8610_hpcd.dts | 12 +
drivers/video/Kconfig | 10 +
drivers/video/Makefile | 1 +
drivers/video/fsl-diu-fb.c | 1741 ++++++++++++++++++++++++++
drivers/video/fsl-diu-fb.h | 223 ++++
6 files changed, 2020 insertions(+), 0 deletions(-)
create mode 100644 drivers/video/fsl-diu-fb.c
create mode 100644 drivers/video/fsl-diu-fb.h
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index 7b4e8a7..8ed644f 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -2816,6 +2816,39 @@ platforms are moved over to use the flattened-device-tree model.
big-endian;
};
+ r) Freescale Display Interface Unit
+
+ The Freescale DIU is a LCD controller, with proper hardware, it can also
+ drive DVI monitors.
+
+ Required properties:
+ - compatible : should be "fsl-diu".
+ - reg : should contain at least address and length of the DIU register
+ set.
+ - Interrupts : one DIU interrupt should be describe here.
+
+ Example (MPC8610HPCD)
+ display@2c000 {
+ compatible = "fsl,diu";
+ reg = <0x2c000 100>;
+ interrupts = <72 2>;
+ interrupt-parent = <&mpic>;
+ };
+
+ s) Freescale on board FPGA
+
+ This is the memory-mapped registers for on board FPGA.
+
+ Required properities:
+ - compatible : should be "fsl,fpga-pixis".
+ - reg : should contain the address and the lenght of the FPPGA register
+ set.
+
+ Example (MPC8610HPCD)
+ board-control@e8000000 {
+ compatible = "fsl,fpga-pixis";
+ reg = <0xe8000000 20>;
+ };
More devices will be defined as this spec matures.
diff --git a/arch/powerpc/boot/dts/mpc8610_hpcd.dts b/arch/powerpc/boot/dts/mpc8610_hpcd.dts
index 16c947b..7f3d64f 100644
--- a/arch/powerpc/boot/dts/mpc8610_hpcd.dts
+++ b/arch/powerpc/boot/dts/mpc8610_hpcd.dts
@@ -45,6 +45,11 @@
reg = <0x00000000 0x20000000>; // 512M at 0x0
};
+ board-control@e8000000 {
+ compatible = "fsl,fpga-pixis";
+ reg = <0xe8000000 20>; // pixis at 0xe8000000
+ };
+
soc@e0000000 {
#address-cells = <1>;
#size-cells = <1>;
@@ -104,6 +109,13 @@
interrupt-parent = <&mpic>;
};
+ display@2c000 {
+ compatible = "fsl,diu";
+ reg = <0x2c000 100>;
+ interrupts = <72 2>;
+ interrupt-parent = <&mpic>;
+ };
+
mpic: interrupt-controller@40000 {
clock-frequency = <0>;
interrupt-controller;
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index e0b0580..d9c6be4 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1779,6 +1779,16 @@ config FB_MBX_DEBUG
If unsure, say N.
+config FB_FSL_DIU
+ tristate "Freescale DIU framebuffer support"
+ depends on FB && FSL_SOC
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ select PPC_LIB_RHEAP
+ ---help---
+ Framebuffer driver for the Freescale SoC DIU
+
config FB_W100
tristate "W100 frame buffer support"
depends on FB && PXA_SHARPSL
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 03371c7..3b9a3ce 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -113,6 +113,7 @@ obj-$(CONFIG_FB_PS3) += ps3fb.o
obj-$(CONFIG_FB_SM501) += sm501fb.o
obj-$(CONFIG_FB_XILINX) += xilinxfb.o
obj-$(CONFIG_FB_OMAP) += omap/
+obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
# Platform or fallback drivers go here
obj-$(CONFIG_FB_UVESA) += uvesafb.o
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
new file mode 100644
index 0000000..a84129c
--- /dev/null
+++ b/drivers/video/fsl-diu-fb.c
@@ -0,0 +1,1741 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Freescale DIU Frame Buffer device driver
+ *
+ * Authors: Hongjun Chen <hong-jun.chen@freescale.com>
+ * Paul Widmer <paul.widmer@freescale.com>
+ * Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ * York Sun <yorksun@freescale.com>
+ *
+ * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/uaccess.h>
+#include <linux/vmalloc.h>
+
+#include <linux/of_platform.h>
+
+#include <sysdev/fsl_soc.h>
+#include "fsl-diu-fb.h"
+
+/*
+ * These parameters give default parameters
+ * for video output 1024x768,
+ * FIXME - change timing to proper amounts
+ * hsync 31.5kHz, vsync 60Hz
+ */
+static struct fb_videomode __devinitdata fsl_diu_default_mode = {
+ .refresh = 60,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 15385,
+ .left_margin = 160,
+ .right_margin = 24,
+ .upper_margin = 29,
+ .lower_margin = 3,
+ .hsync_len = 136,
+ .vsync_len = 6,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+static struct fb_videomode __devinitdata fsl_diu_mode_db[] = {
+ {
+ .name = "1024x768-60",
+ .refresh = 60,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 15385,
+ .left_margin = 160,
+ .right_margin = 24,
+ .upper_margin = 29,
+ .lower_margin = 3,
+ .hsync_len = 136,
+ .vsync_len = 6,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "1024x768-70",
+ .refresh = 70,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 16886,
+ .left_margin = 3,
+ .right_margin = 3,
+ .upper_margin = 2,
+ .lower_margin = 2,
+ .hsync_len = 40,
+ .vsync_len = 18,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "1024x768-75",
+ .refresh = 75,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 15009,
+ .left_margin = 3,
+ .right_margin = 3,
+ .upper_margin = 2,
+ .lower_margin = 2,
+ .hsync_len = 80,
+ .vsync_len = 32,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "1280x1024-60",
+ .refresh = 60,
+ .xres = 1280,
+ .yres = 1024,
+ .pixclock = 9375,
+ .left_margin = 38,
+ .right_margin = 128,
+ .upper_margin = 2,
+ .lower_margin = 7,
+ .hsync_len = 216,
+ .vsync_len = 37,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "1280x1024-70",
+ .refresh = 70,
+ .xres = 1280,
+ .yres = 1024,
+ .pixclock = 9380,
+ .left_margin = 6,
+ .right_margin = 6,
+ .upper_margin = 4,
+ .lower_margin = 4,
+ .hsync_len = 60,
+ .vsync_len = 94,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "1280x1024-75",
+ .refresh = 75,
+ .xres = 1280,
+ .yres = 1024,
+ .pixclock = 9380,
+ .left_margin = 6,
+ .right_margin = 6,
+ .upper_margin = 4,
+ .lower_margin = 4,
+ .hsync_len = 60,
+ .vsync_len = 15,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "320x240", /* for AOI only */
+ .refresh = 60,
+ .xres = 320,
+ .yres = 240,
+ .pixclock = 15385,
+ .left_margin = 0,
+ .right_margin = 0,
+ .upper_margin = 0,
+ .lower_margin = 0,
+ .hsync_len = 0,
+ .vsync_len = 0,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+ {
+ .name = "1280x480-60",
+ .refresh = 60,
+ .xres = 1280,
+ .yres = 480,
+ .pixclock = 18939,
+ .left_margin = 353,
+ .right_margin = 47,
+ .upper_margin = 39,
+ .lower_margin = 4,
+ .hsync_len = 8,
+ .vsync_len = 2,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+ },
+};
+
+static char *fb_mode = "1024x768-32@60";
+static unsigned long default_bpp = 32;
+static int monitor_port;
+
+#if defined(CONFIG_NOT_COHERENT_CACHE)
+static u8 *coherence_data;
+static size_t coherence_data_size;
+static unsigned int d_cache_line_size;
+#endif
+
+static DEFINE_SPINLOCK(diu_lock);
+
+struct fsl_diu_data {
+ struct fb_info *fsl_diu_info[FSL_AOI_NUM - 1];
+ /*FSL_AOI_NUM has one dummy AOI */
+ struct device_attribute dev_attr;
+ struct diu_ad *dummy_ad;
+ void *dummy_aoi_virt;
+ unsigned int irq;
+ int fb_enabled;
+ int monitor_port;
+};
+
+struct mfb_info {
+ int index;
+ int type;
+ char *id;
+ int registered;
+ int blank;
+ unsigned long pseudo_palette[16];
+ struct diu_ad *ad;
+ int cursor_reset;
+ unsigned char g_alpha;
+ unsigned int count;
+ int x_aoi_d; /* aoi display x offset to physical screen */
+ int y_aoi_d; /* aoi display y offset to physical screen */
+ struct fsl_diu_data *parent;
+};
+
+
+static struct mfb_info mfb_template[] = {
+ { /* AOI 0 for plane 0 */
+ .index = 0,
+ .type = MFB_TYPE_OUTPUT,
+ .id = "Panel0",
+ .registered = 0,
+ .count = 0,
+ .x_aoi_d = 0,
+ .y_aoi_d = 0,
+ },
+ { /* AOI 0 for plane 1 */
+ .index = 1,
+ .type = MFB_TYPE_OUTPUT,
+ .id = "Panel1 AOI0",
+ .registered = 0,
+ .g_alpha = 0xff,
+ .count = 0,
+ .x_aoi_d = 0,
+ .y_aoi_d = 0,
+ },
+ { /* AOI 1 for plane 1 */
+ .index = 2,
+ .type = MFB_TYPE_OUTPUT,
+ .id = "Panel1 AOI1",
+ .registered = 0,
+ .g_alpha = 0xff,
+ .count = 0,
+ .x_aoi_d = 0,
+ .y_aoi_d = 480,
+ },
+ { /* AOI 0 for plane 2 */
+ .index = 3,
+ .type = MFB_TYPE_OUTPUT,
+ .id = "Panel2 AOI0",
+ .registered = 0,
+ .g_alpha = 0xff,
+ .count = 0,
+ .x_aoi_d = 640,
+ .y_aoi_d = 0,
+ },
+ { /* AOI 1 for plane 2 */
+ .index = 4,
+ .type = MFB_TYPE_OUTPUT,
+ .id = "Panel2 AOI1",
+ .registered = 0,
+ .g_alpha = 0xff,
+ .count = 0,
+ .x_aoi_d = 640,
+ .y_aoi_d = 480,
+ },
+};
+
+static struct diu_hw dr = {
+ .mode = MFB_MODE1,
+ .reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock),
+};
+
+static struct diu_pool pool;
+
+/* To allocate memory for framebuffer. First try __get_free_pages(). If it
+ * fails, try rh_alloc. The reason is __get_free_pages() cannot allocate
+ * very large memory (more than 4MB). We don't want to allocate all memory
+ * in rheap since small memory allocation/deallocation will fragment the
+ * rheap and make the furture large allocation fail.
+ */
+
+void *fsl_diu_alloc(unsigned long size, phys_addr_t *phys)
+{
+ void *virt;
+
+ pr_debug("size=%lu\n", size);
+
+ virt = (void *)__get_free_pages(GFP_DMA | __GFP_ZERO, get_order(size));
+ if (virt) {
+ *phys = virt_to_phys(virt);
+ pr_debug("virt %p, phys=%llx\n", virt, (uint64_t) *phys);
+ return virt;
+ }
+ if (!diu_ops.diu_mem) {
+ printk(KERN_INFO "%s: no diu_mem."
+ " To reserve more memory, put 'diufb=15M' "
+ "in the command line\n", __func__);
+ return NULL;
+ }
+
+ virt = (void *)rh_alloc(&diu_ops.diu_rh_info, size, "DIU");
+ if (virt) {
+ *phys = virt_to_bus(virt);
+ memset(virt, 0, size);
+ }
+
+ pr_debug("rh virt=%p phys=%lx\n", virt, *phys);
+
+ return virt;
+}
+
+void fsl_diu_free(void *p, unsigned long size)
+{
+ pr_debug("p=%p size=%lu\n", p, size);
+
+ if (!p)
+ return;
+
+ if ((p >= diu_ops.diu_mem) &&
+ (p < (diu_ops.diu_mem + diu_ops.diu_size))) {
+ pr_debug("rh\n");
+ rh_free(&diu_ops.diu_rh_info, (unsigned long) p);
+ } else {
+ pr_debug("dma\n");
+ free_pages((unsigned long)p, get_order(size));
+ }
+}
+
+static int fsl_diu_enable_panel(struct fb_info *info)
+{
+ struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
+ struct diu *hw = dr.diu_reg;
+ struct diu_ad *ad = mfbi->ad;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+ int res = 0;
+
+ pr_debug("enable_panel index %d\n", mfbi->index);
+ if (mfbi->type != MFB_TYPE_OFF) {
+ switch (mfbi->index) {
+ case 0: /* plane 0 */
+ if (hw->desc[0] != ad->paddr)
+ out_be32(&(hw->desc[0]), ad->paddr);
+ break;
+ case 1: /* plane 1 AOI 0 */
+ cmfbi = machine_data->fsl_diu_info[2]->par;
+ if (hw->desc[1] != ad->paddr) { /* AOI0 closed */
+ if (cmfbi->count > 0) /* AOI1 open */
+ ad->next_ad =
+ cpu_to_le32(cmfbi->ad->paddr);
+ else
+ ad->next_ad = 0;
+ out_be32(&(hw->desc[1]), ad->paddr);
+ }
+ break;
+ case 3: /* plane 2 AOI 0 */
+ cmfbi = machine_data->fsl_diu_info[4]->par;
+ if (hw->desc[2] != ad->paddr) { /* AOI0 closed */
+ if (cmfbi->count > 0) /* AOI1 open */
+ ad->next_ad =
+ cpu_to_le32(cmfbi->ad->paddr);
+ else
+ ad->next_ad = 0;
+ out_be32(&(hw->desc[2]), ad->paddr);
+ }
+ break;
+ case 2: /* plane 1 AOI 1 */
+ pmfbi = machine_data->fsl_diu_info[1]->par;
+ ad->next_ad = 0;
+ if (hw->desc[1] == machine_data->dummy_ad->paddr)
+ out_be32(&(hw->desc[1]), ad->paddr);
+ else /* AOI0 open */
+ pmfbi->ad->next_ad = cpu_to_le32(ad->paddr);
+ break;
+ case 4: /* plane 2 AOI 1 */
+ pmfbi = machine_data->fsl_diu_info[3]->par;
+ ad->next_ad = 0;
+ if (hw->desc[2] == machine_data->dummy_ad->paddr)
+ out_be32(&(hw->desc[2]), ad->paddr);
+ else /* AOI0 was open */
+ pmfbi->ad->next_ad = cpu_to_le32(ad->paddr);
+ break;
+ default:
+ res = -EINVAL;
+ break;
+ }
+ } else
+ res = -EINVAL;
+ return res;
+}
+
+static int fsl_diu_disable_panel(struct fb_info *info)
+{
+ struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
+ struct diu *hw = dr.diu_reg;
+ struct diu_ad *ad = mfbi->ad;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+ int res = 0;
+
+ switch (mfbi->index) {
+ case 0: /* plane 0 */
+ if (hw->desc[0] != machine_data->dummy_ad->paddr)
+ out_be32(&(hw->desc[0]),
+ machine_data->dummy_ad->paddr);
+ break;
+ case 1: /* plane 1 AOI 0 */
+ cmfbi = machine_data->fsl_diu_info[2]->par;
+ if (cmfbi->count > 0) /* AOI1 is open */
+ out_be32(&(hw->desc[1]), cmfbi->ad->paddr);
+ /* move AOI1 to the first */
+ else /* AOI1 was closed */
+ out_be32(&(hw->desc[1]),
+ machine_data->dummy_ad->paddr);
+ /* close AOI 0 */
+ break;
+ case 3: /* plane 2 AOI 0 */
+ cmfbi = machine_data->fsl_diu_info[4]->par;
+ if (cmfbi->count > 0) /* AOI1 is open */
+ out_be32(&(hw->desc[2]), cmfbi->ad->paddr);
+ /* move AOI1 to the first */
+ else /* AOI1 was closed */
+ out_be32(&(hw->desc[2]),
+ machine_data->dummy_ad->paddr);
+ /* close AOI 0 */
+ break;
+ case 2: /* plane 1 AOI 1 */
+ pmfbi = machine_data->fsl_diu_info[1]->par;
+ if (hw->desc[1] != ad->paddr) {
+ /* AOI1 is not the first in the chain */
+ if (pmfbi->count > 0)
+ /* AOI0 is open, must be the first */
+ pmfbi->ad->next_ad = 0;
+ } else /* AOI1 is the first in the chain */
+ out_be32(&(hw->desc[1]), machine_data->dummy_ad->paddr);
+ /* close AOI 1 */
+ break;
+ case 4: /* plane 2 AOI 1 */
+ pmfbi = machine_data->fsl_diu_info[3]->par;
+ if (hw->desc[2] != ad->paddr) {
+ /* AOI1 is not the first in the chain */
+ if (pmfbi->count > 0)
+ /* AOI0 is open, must be the first */
+ pmfbi->ad->next_ad = 0;
+ } else /* AOI1 is the first in the chain */
+ out_be32(&(hw->desc[2]), machine_data->dummy_ad->paddr);
+ /* close AOI 1 */
+ break;
+ default:
+ res = -EINVAL;
+ break;
+ }
+
+ return res;
+}
+
+static void enable_lcdc(struct fb_info *info)
+{
+ struct diu *hw = dr.diu_reg;
+ struct mfb_info *mfbi = info->par;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+
+ if (!machine_data->fb_enabled) {
+ out_be32(&(hw->diu_mode), dr.mode);
+ machine_data->fb_enabled++;
+ }
+}
+
+static void disable_lcdc(struct fb_info *info)
+{
+ struct diu *hw = dr.diu_reg;
+ struct mfb_info *mfbi = info->par;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+
+ if (machine_data->fb_enabled) {
+ out_be32(&(hw->diu_mode), 0);
+ machine_data->fb_enabled = 0;
+ }
+}
+
+static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+ int available_height, upper_aoi_bottom, index = mfbi->index;
+ int lower_aoi_is_open, upper_aoi_is_open;
+ __u32 base_plane_width, base_plane_height, upper_aoi_height;
+
+ base_plane_width = machine_data->fsl_diu_info[0]->var.xres;
+ base_plane_height = machine_data->fsl_diu_info[0]->var.yres;
+
+ switch (index) {
+ case 0:
+ if (mfbi->x_aoi_d != 0)
+ mfbi->x_aoi_d = 0;
+ if (mfbi->y_aoi_d != 0)
+ mfbi->y_aoi_d = 0;
+ break;
+ case 1: /* AOI 0 */
+ case 3:
+ lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par;
+ lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0;
+ if (var->xres > base_plane_width)
+ var->xres = base_plane_width;
+ if ((mfbi->x_aoi_d + var->xres) > base_plane_width)
+ mfbi->x_aoi_d = base_plane_width - var->xres;
+
+ if (lower_aoi_is_open)
+ available_height = lower_aoi_mfbi->y_aoi_d;
+ else
+ available_height = base_plane_height;
+ if (var->yres > available_height)
+ var->yres = available_height;
+ if ((mfbi->y_aoi_d + var->yres) > available_height)
+ mfbi->y_aoi_d = available_height - var->yres;
+ break;
+ case 2: /* AOI 1 */
+ case 4:
+ upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par;
+ upper_aoi_height =
+ machine_data->fsl_diu_info[index-1]->var.yres;
+ upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height;
+ upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0;
+ if (var->xres > base_plane_width)
+ var->xres = base_plane_width;
+ if ((mfbi->x_aoi_d + var->xres) > base_plane_width)
+ mfbi->x_aoi_d = base_plane_width - var->xres;
+ if (mfbi->y_aoi_d < 0)
+ mfbi->y_aoi_d = 0;
+ if (upper_aoi_is_open) {
+ if (mfbi->y_aoi_d < upper_aoi_bottom)
+ mfbi->y_aoi_d = upper_aoi_bottom;
+ available_height = base_plane_height
+ - upper_aoi_bottom;
+ } else
+ available_height = base_plane_height;
+ if (var->yres > available_height)
+ var->yres = available_height;
+ if ((mfbi->y_aoi_d + var->yres) > base_plane_height)
+ mfbi->y_aoi_d = base_plane_height - var->yres;
+ break;
+ }
+}
+/*
+ * Checks to see if the hardware supports the state requested by var passed
+ * in. This function does not alter the hardware state! If the var passed in
+ * is slightly off by what the hardware can support then we alter the var
+ * PASSED in to what we can do. If the hardware doesn't support mode change
+ * a -EINVAL will be returned by the upper layers.
+ */
+static int fsl_diu_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ unsigned long htotal, vtotal;
+
+ pr_debug("check_var xres: %d\n", var->xres);
+ pr_debug("check_var yres: %d\n", var->yres);
+
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+
+ if (var->xoffset < 0)
+ var->xoffset = 0;
+
+ if (var->yoffset < 0)
+ var->yoffset = 0;
+
+ if (var->xoffset + info->var.xres > info->var.xres_virtual)
+ var->xoffset = info->var.xres_virtual - info->var.xres;
+
+ if (var->yoffset + info->var.yres > info->var.yres_virtual)
+ var->yoffset = info->var.yres_virtual - info->var.yres;
+
+ if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
+ (var->bits_per_pixel != 16))
+ var->bits_per_pixel = default_bpp;
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ var->red.length = 5;
+ var->red.offset = 11;
+ var->red.msb_right = 0;
+
+ var->green.length = 6;
+ var->green.offset = 5;
+ var->green.msb_right = 0;
+
+ var->blue.length = 5;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 24:
+ var->red.length = 8;
+ var->red.offset = 0;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 16;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 32:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ var->transp.msb_right = 0;
+
+ break;
+ }
+ /* If the pixclock is below the minimum spec'd value then set to
+ * refresh rate for 60Hz since this is supported by most monitors.
+ * Refer to Documentation/fb/ for calculations.
+ */
+ if ((var->pixclock < MIN_PIX_CLK) || (var->pixclock > MAX_PIX_CLK)) {
+ htotal = var->xres + var->right_margin + var->hsync_len +
+ var->left_margin;
+ vtotal = var->yres + var->lower_margin + var->vsync_len +
+ var->upper_margin;
+ var->pixclock = (vtotal * htotal * 6UL) / 100UL;
+ var->pixclock = KHZ2PICOS(var->pixclock);
+ pr_debug("pixclock set for 60Hz refresh = %u ps\n",
+ var->pixclock);
+ }
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ /* Copy nonstd field to/from sync for fbset usage */
+ var->sync |= var->nonstd;
+ var->nonstd |= var->sync;
+
+ adjust_aoi_size_position(var, info);
+ return 0;
+}
+
+static void set_fix(struct fb_info *info)
+{
+ struct fb_fix_screeninfo *fix = &info->fix;
+ struct fb_var_screeninfo *var = &info->var;
+ struct mfb_info *mfbi = info->par;
+
+ strncpy(fix->id, mfbi->id, strlen(mfbi->id));
+ fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->accel = FB_ACCEL_NONE;
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+}
+
+static void update_lcdc(struct fb_info *info)
+{
+ struct fb_var_screeninfo *var = &info->var;
+ struct mfb_info *mfbi = info->par;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+ struct diu *hw;
+ int i, j;
+ char __iomem *cursor_base, *gamma_table_base;
+
+ u32 temp;
+
+ hw = dr.diu_reg;
+
+ if (mfbi->type == MFB_TYPE_OFF) {
+ fsl_diu_disable_panel(info);
+ return;
+ }
+
+ diu_ops.set_monitor_port(machine_data->monitor_port);
+ gamma_table_base = pool.gamma.vaddr;
+ cursor_base = pool.cursor.vaddr;
+ /* Prep for DIU init - gamma table, cursor table */
+
+ for (i = 0; i <= 2; i++)
+ for (j = 0; j <= 255; j++)
+ *gamma_table_base++ = j;
+
+ diu_ops.set_gamma_table(machine_data->monitor_port, pool.gamma.vaddr);
+
+ pr_debug("update-lcdc: HW - %p\n Disabling DIU\n", hw);
+ disable_lcdc(info);
+
+ /* Program DIU registers */
+
+ out_be32(&(hw->gamma), pool.gamma.paddr);
+ out_be32(&(hw->cursor), pool.cursor.paddr);
+
+ out_be32(&(hw->bgnd), 0x007F7F7F); /* BGND */
+ out_be32(&(hw->bgnd_wb), 0); /* BGND_WB */
+ out_be32(&(hw->disp_size), (var->yres << 16 | var->xres));
+ /* DISP SIZE */
+ pr_debug("DIU xres: %d\n", var->xres);
+ pr_debug("DIU yres: %d\n", var->yres);
+
+ out_be32(&(hw->wb_size), 0); /* WB SIZE */
+ out_be32(&(hw->wb_mem_addr), 0); /* WB MEM ADDR */
+
+ /* Horizontal and vertical configuration register */
+ temp = var->left_margin << 22 | /* BP_H */
+ var->hsync_len << 11 | /* PW_H */
+ var->right_margin; /* FP_H */
+
+ out_be32(&(hw->hsyn_para), temp);
+
+ temp = var->upper_margin << 22 | /* BP_V */
+ var->vsync_len << 11 | /* PW_V */
+ var->lower_margin; /* FP_V */
+
+ out_be32(&(hw->vsyn_para), temp);
+
+ pr_debug("DIU right_margin - %d\n", var->right_margin);
+ pr_debug("DIU left_margin - %d\n", var->left_margin);
+ pr_debug("DIU hsync_len - %d\n", var->hsync_len);
+ pr_debug("DIU upper_margin - %d\n", var->upper_margin);
+ pr_debug("DIU lower_margin - %d\n", var->lower_margin);
+ pr_debug("DIU vsync_len - %d\n", var->vsync_len);
+ pr_debug("DIU HSYNC - 0x%08x\n", hw->hsyn_para);
+ pr_debug("DIU VSYNC - 0x%08x\n", hw->vsyn_para);
+
+ diu_ops.set_pixel_clock(var->pixclock);
+
+ out_be32(&(hw->syn_pol), 0); /* SYNC SIGNALS POLARITY */
+ out_be32(&(hw->thresholds), 0x00037800); /* The Thresholds */
+ out_be32(&(hw->int_status), 0); /* INTERRUPT STATUS */
+ out_be32(&(hw->plut), 0x01F5F666);
+
+ /* Enable the DIU */
+ enable_lcdc(info);
+}
+
+static int map_video_memory(struct fb_info *info)
+{
+ phys_addr_t phys;
+
+ pr_debug("info->var.xres_virtual = %d\n", info->var.xres_virtual);
+ pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual);
+ pr_debug("info->fix.line_length = %d\n", info->fix.line_length);
+
+ info->fix.smem_len = info->fix.line_length * info->var.yres_virtual;
+ pr_debug("MAP_VIDEO_MEMORY: smem_len = %d\n", info->fix.smem_len);
+ info->screen_base = fsl_diu_alloc(info->fix.smem_len, &phys);
+ if (info->screen_base == 0) {
+ printk(KERN_ERR "Unable to allocate fb memory\n");
+ return -ENOMEM;
+ }
+ info->fix.smem_start = (unsigned long) phys;
+ info->screen_size = info->fix.smem_len;
+
+ pr_debug("Allocated fb @ paddr=0x%08lx, size=%d.\n",
+ info->fix.smem_start,
+ info->fix.smem_len);
+ pr_debug("screen base %p\n", info->screen_base);
+
+ return 0;
+}
+
+static void unmap_video_memory(struct fb_info *info)
+{
+ fsl_diu_free(info->screen_base, info->fix.smem_len);
+ info->screen_base = 0;
+ info->fix.smem_start = 0;
+ info->fix.smem_len = 0;
+}
+
+/*
+ * Using the fb_var_screeninfo in fb_info we set the resolution of this
+ * particular framebuffer. This function alters the fb_fix_screeninfo stored
+ * in fb_info. It does not alter var in fb_info since we are using that
+ * data. This means we depend on the data in var inside fb_info to be
+ * supported by the hardware. fsl_diu_check_var is always called before
+ * fsl_diu_set_par to ensure this.
+ */
+static int fsl_diu_set_par(struct fb_info *info)
+{
+ unsigned long len;
+ struct fb_var_screeninfo *var = &info->var;
+ struct mfb_info *mfbi = info->par;
+ struct fsl_diu_data *machine_data = mfbi->parent;
+ struct diu_ad *ad = mfbi->ad;
+ struct diu *hw;
+
+ hw = dr.diu_reg;
+
+ set_fix(info);
+ mfbi->cursor_reset = 1;
+
+ len = info->var.yres_virtual * info->fix.line_length;
+ /* Alloc & dealloc each time resolution/bpp change */
+ if (len != info->fix.smem_len) {
+ if (info->fix.smem_start)
+ unmap_video_memory(info);
+ pr_debug("SET PAR: smem_len = %d\n", info->fix.smem_len);
+
+ /* Memory allocation for framebuffer */
+ if (map_video_memory(info)) {
+ printk(KERN_ERR "Unable to allocate fb memory 1\n");
+ return -ENOMEM;
+ }
+ }
+
+ ad->pix_fmt =
+ diu_ops.get_pixel_format(var->bits_per_pixel,
+ machine_data->monitor_port);
+ ad->addr = cpu_to_le32(info->fix.smem_start);
+ ad->src_size_g_alpha = cpu_to_le32((var->yres << 12) |
+ var->xres) | mfbi->g_alpha;
+ /* fix me. AOI should not be greater than display size */
+ ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres);
+ ad->offset_xyi = 0;
+ ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d);
+
+ /* Disable chroma keying function */
+ ad->ckmax_r = 0;
+ ad->ckmax_g = 0;
+ ad->ckmax_b = 0;
+
+ ad->ckmin_r = 255;
+ ad->ckmin_g = 255;
+ ad->ckmin_b = 255;
+
+ if (mfbi->index == 0)
+ update_lcdc(info);
+ return 0;
+}
+
+static inline __u32 CNVT_TOHW(__u32 val, __u32 width)
+{
+ return ((val<<width) + 0x7FFF - val)>>16;
+}
+
+/*
+ * Set a single color register. The values supplied have a 16 bit magnitude
+ * which needs to be scaled in this function for the hardware. Things to take
+ * into consideration are how many color registers, if any, are supported with
+ * the current color visual. With truecolor mode no color palettes are
+ * supported. Here a psuedo palette is created which we store the value in
+ * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited
+ * color palette.
+ */
+static int fsl_diu_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *info)
+{
+ int ret = 1;
+
+ /*
+ * If greyscale is true, then we convert the RGB value
+ * to greyscale no matter what visual we are using.
+ */
+ if (info->var.grayscale)
+ red = green = blue = (19595 * red + 38470 * green +
+ 7471 * blue) >> 16;
+ switch (info->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ /*
+ * 16-bit True Colour. We encode the RGB value
+ * according to the RGB bitfield information.
+ */
+ if (regno < 16) {
+ u32 *pal = info->pseudo_palette;
+ u32 v;
+
+ red = CNVT_TOHW(red, info->var.red.length);
+ green = CNVT_TOHW(green, info->var.green.length);
+ blue = CNVT_TOHW(blue, info->var.blue.length);
+ transp = CNVT_TOHW(transp, info->var.transp.length);
+
+ v = (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset) |
+ (transp << info->var.transp.offset);
+
+ pal[regno] = v;
+ ret = 0;
+ }
+ break;
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * Pan (or wrap, depending on the `vmode' field) the display using the
+ * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values
+ * don't fit, return -EINVAL.
+ */
+static int fsl_diu_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ if ((info->var.xoffset == var->xoffset) &&
+ (info->var.yoffset == var->yoffset))
+ return 0; /* No change, do nothing */
+
+ if (var->xoffset < 0 || var->yoffset < 0
+ || var->xoffset + info->var.xres > info->var.xres_virtual
+ || var->yoffset + info->var.yres > info->var.yres_virtual)
+ return -EINVAL;
+
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+
+ if (var->vmode & FB_VMODE_YWRAP)
+ info->var.vmode |= FB_VMODE_YWRAP;
+ else
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+
+ return 0;
+}
+
+/*
+ * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking
+ * succeeded, != 0 if un-/blanking failed.
+ * blank_mode == 2: suspend vsync
+ * blank_mode == 3: suspend hsync
+ * blank_mode == 4: powerdown
+ */
+static int fsl_diu_blank(int blank_mode, struct fb_info *info)
+{
+ struct mfb_info *mfbi = info->par;
+
+ mfbi->blank = blank_mode;
+
+ switch (blank_mode) {
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ /* FIXME: fixes to enable_panel and enable lcdc needed */
+ case FB_BLANK_NORMAL:
+ /* fsl_diu_disable_panel(info);*/
+ break;
+ case FB_BLANK_POWERDOWN:
+ /* disable_lcdc(info); */
+ break;
+ case FB_BLANK_UNBLANK:
+ /* fsl_diu_enable_panel(info);*/
+ break;
+ }
+
+ return 0;
+}
+
+static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ struct mfb_info *mfbi = info->par;
+ struct diu_ad *ad = mfbi->ad;
+ struct mfb_chroma_key ck;
+ unsigned char global_alpha;
+ struct aoi_display_offset aoi_d;
+ __u32 pix_fmt;
+
+ switch (cmd) {
+ case MFB_SET_PIXFMT:
+ if (!arg)
+ return -EINVAL;
+ if (copy_from_user(&pix_fmt, (void __user *)arg,
+ sizeof(pix_fmt)))
+ return -EFAULT;
+ ad->pix_fmt = pix_fmt;
+ pr_debug("Set pixel format to 0x%08x\n", ad->pix_fmt);
+ break;
+ case MFB_GET_PIXFMT:
+ if (!arg)
+ return -EINVAL;
+ pix_fmt = ad->pix_fmt;
+ if (copy_to_user((void *)arg, &pix_fmt, sizeof(pix_fmt)))
+ return -EFAULT;
+ pr_debug("get pixel format 0x%08x\n", ad->pix_fmt);
+ break;
+ case MFB_SET_AOID:
+ if (!arg)
+ return -EINVAL;
+ if (copy_from_user(&aoi_d, (void *)arg, sizeof(aoi_d)))
+ return -EFAULT;
+ mfbi->x_aoi_d = aoi_d.x_aoi_d;
+ mfbi->y_aoi_d = aoi_d.y_aoi_d;
+ pr_debug("set AOI display offset of index %d to (%d,%d)\n",
+ mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d);
+ fsl_diu_check_var(&info->var, info);
+ fsl_diu_set_par(info);
+ break;
+ case MFB_GET_AOID:
+ if (!arg)
+ return -EINVAL;
+ aoi_d.x_aoi_d = mfbi->x_aoi_d;
+ aoi_d.y_aoi_d = mfbi->y_aoi_d;
+ if (copy_to_user((void *)arg, &aoi_d, sizeof(aoi_d)))
+ return -EFAULT;
+ pr_debug("get AOI display offset of index %d (%d,%d)\n",
+ mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d);
+ break;
+ case MFB_GET_ALPHA:
+ if (!arg)
+ return -EINVAL;
+ global_alpha = mfbi->g_alpha;
+ if (copy_to_user((void *)arg, &global_alpha,
+ sizeof(global_alpha)))
+ return -EFAULT;
+ pr_debug("get global alpha of index %d\n", mfbi->index);
+ break;
+ case MFB_SET_ALPHA:
+ if (!arg)
+ return -EINVAL;
+
+ /* set panel information */
+ if (copy_from_user(&global_alpha, (void *)arg,
+ sizeof(global_alpha)))
+ return -EFAULT;
+ ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) |
+ (global_alpha & 0xff);
+ mfbi->g_alpha = global_alpha;
+ pr_debug("set global alpha for index %d\n", mfbi->index);
+ break;
+ case MFB_SET_CHROMA_KEY:
+ if (!arg)
+ return -EINVAL;
+
+ /* set panel winformation */
+ if (copy_from_user(&ck, (void *)arg, sizeof(ck)))
+ return -EFAULT;
+
+ if (ck.enable &&
+ (ck.red_max < ck.red_min ||
+ ck.green_max < ck.green_min ||
+ ck.blue_max < ck.blue_min))
+ return -EINVAL;
+
+ if (!ck.enable) {
+ ad->ckmax_r = 0;
+ ad->ckmax_g = 0;
+ ad->ckmax_b = 0;
+ ad->ckmin_r = 255;
+ ad->ckmin_g = 255;
+ ad->ckmin_b = 255;
+ } else {
+ ad->ckmax_r = ck.red_max;
+ ad->ckmax_g = ck.green_max;
+ ad->ckmax_b = ck.blue_max;
+ ad->ckmin_r = ck.red_min;
+ ad->ckmin_g = ck.green_min;
+ ad->ckmin_b = ck.blue_min;
+ }
+ pr_debug("set chroma key\n");
+ break;
+ case FBIOGET_GWINFO:
+ if (mfbi->type == MFB_TYPE_OFF)
+ return -ENODEV;
+
+ if (!arg)
+ return -EINVAL;
+
+ /* get graphic window information */
+ if (copy_to_user((void *)arg, ad, sizeof(*ad)))
+ return -EFAULT;
+ break;
+ case FBIOGET_HWCINFO:
+ pr_debug("FBIOGET_HWCINFO:0x%08x\n", FBIOGET_HWCINFO);
+ break;
+ case FBIOPUT_MODEINFO:
+ pr_debug("FBIOPUT_MODEINFO:0x%08x\n", FBIOPUT_MODEINFO);
+ break;
+ case FBIOGET_DISPINFO:
+ pr_debug("FBIOGET_DISPINFO:0x%08x\n", FBIOGET_DISPINFO);
+ break;
+
+ default:
+ printk(KERN_ERR "Unknown ioctl command (0x%08X)\n", cmd);
+ return 0;
+ }
+
+ return 0;
+}
+
+/* turn on fb if count == 1
+ */
+static int fsl_diu_open(struct fb_info *info, int user)
+{
+ struct mfb_info *mfbi = info->par;
+ int res = 0;
+
+ spin_lock(&diu_lock);
+ mfbi->count++;
+ if (mfbi->count == 1) {
+ pr_debug("open plane index %d\n", mfbi->index);
+ fsl_diu_check_var(&info->var, info);
+ res = fsl_diu_set_par(info);
+ if (res < 0)
+ mfbi->count--;
+ else {
+ res = fsl_diu_enable_panel(info);
+ if (res < 0)
+ mfbi->count--;
+ }
+ }
+
+ spin_unlock(&diu_lock);
+ return res;
+}
+
+/* turn off fb if count == 0
+ */
+static int fsl_diu_release(struct fb_info *info, int user)
+{
+ struct mfb_info *mfbi = info->par;
+ int res = 0;
+
+ spin_lock(&diu_lock);
+ mfbi->count--;
+ if (mfbi->count == 0) {
+ pr_debug("release plane index %d\n", mfbi->index);
+ res = fsl_diu_disable_panel(info);
+ if (res < 0)
+ mfbi->count++;
+ }
+ spin_unlock(&diu_lock);
+ return res;
+}
+
+static struct fb_ops fsl_diu_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = fsl_diu_check_var,
+ .fb_set_par = fsl_diu_set_par,
+ .fb_setcolreg = fsl_diu_setcolreg,
+ .fb_blank = fsl_diu_blank,
+ .fb_pan_display = fsl_diu_pan_display,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_ioctl = fsl_diu_ioctl,
+ .fb_open = fsl_diu_open,
+ .fb_release = fsl_diu_release,
+};
+
+static int init_fbinfo(struct fb_info *info)
+{
+ struct mfb_info *mfbi = info->par;
+
+ info->device = NULL;
+ info->var.activate = FB_ACTIVATE_NOW;
+ info->fbops = &fsl_diu_ops;
+ info->flags = FBINFO_FLAG_DEFAULT;
+ info->pseudo_palette = &mfbi->pseudo_palette;
+
+ /* Allocate colormap */
+ fb_alloc_cmap(&info->cmap, 16, 0);
+ return 0;
+}
+
+static int install_fb(struct fb_info *info)
+{
+ int rc;
+ struct mfb_info *mfbi = info->par;
+ const char *aoi_mode, *init_aoi_mode = "320x240";
+
+ if (init_fbinfo(info))
+ return -EINVAL;
+
+ if (mfbi->index == 0) /* plane 0 */
+ aoi_mode = fb_mode;
+ else
+ aoi_mode = init_aoi_mode;
+ pr_debug("mode used = %s\n", aoi_mode);
+ rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db,
+ ARRAY_SIZE(fsl_diu_mode_db), &fsl_diu_default_mode, default_bpp);
+
+ switch (rc) {
+ case 1:
+ pr_debug("using mode specified in @mode\n");
+ break;
+ case 2:
+ pr_debug("using mode specified in @mode "
+ "with ignored refresh rate\n");
+ break;
+ case 3:
+ pr_debug("using mode default mode\n");
+ break;
+ case 4:
+ pr_debug("using mode from list\n");
+ break;
+ default:
+ pr_debug("rc = %d\n", rc);
+ pr_debug("failed to find mode\n");
+ return -EINVAL;
+ break;
+ }
+
+ pr_debug("xres_virtual %d\n", info->var.xres_virtual);
+ pr_debug("bits_per_pixel %d\n", info->var.bits_per_pixel);
+
+ pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual);
+ pr_debug("info->fix.line_length = %d\n", info->fix.line_length);
+
+ if (mfbi->type == MFB_TYPE_OFF)
+ mfbi->blank = FB_BLANK_NORMAL;
+ else
+ mfbi->blank = FB_BLANK_UNBLANK;
+
+ if (fsl_diu_check_var(&info->var, info)) {
+ printk(KERN_ERR "fb_check_var failed");
+ fb_dealloc_cmap(&info->cmap);
+ return -EINVAL;
+ }
+
+ if (fsl_diu_set_par(info)) {
+ printk(KERN_ERR "fb_set_par failed");
+ fb_dealloc_cmap(&info->cmap);
+ return -EINVAL;
+ }
+
+ if (register_framebuffer(info) < 0) {
+ printk(KERN_ERR "register_framebuffer failed");
+ unmap_video_memory(info);
+ fb_dealloc_cmap(&info->cmap);
+ return -EINVAL;
+ }
+
+ mfbi->registered = 1;
+ printk(KERN_INFO "fb%d: %s fb device registered successfully.\n",
+ info->node, info->fix.id);
+
+ return 0;
+}
+
+static void __exit uninstall_fb(struct fb_info *info)
+{
+ struct mfb_info *mfbi = info->par;
+
+ if (!mfbi->registered)
+ return;
+
+ unregister_framebuffer(info);
+ unmap_video_memory(info);
+ if (&info->cmap)
+ fb_dealloc_cmap(&info->cmap);
+
+ mfbi->registered = 0;
+}
+
+static irqreturn_t fsl_diu_isr(int irq, void *dev_id)
+{
+ struct diu *hw = dr.diu_reg;
+ unsigned int status = in_be32(&(hw->int_status));
+
+ if (status) {
+ /* This is the workaround for underrun */
+ if (status & INT_UNDRUN) {
+ out_be32(&(hw->diu_mode), 0);
+ pr_debug("Err: DIU occurs underrun!\n");
+ udelay(1);
+ out_be32(&(hw->diu_mode), 1);
+ }
+#if defined(CONFIG_NOT_COHERENT_CACHE)
+ else if (status & INT_VSYNC) {
+ unsigned int i;
+ for (i = 0; i < coherence_data_size;
+ i += d_cache_line_size)
+ __asm__ __volatile__ (
+ "dcbz 0, %[input]"
+ ::[input]"r"(&coherence_data[i]));
+ }
+#endif
+ return IRQ_HANDLED;
+ }
+ return IRQ_NONE;
+}
+
+static int request_irq_local(int irq)
+{
+ unsigned long status, ints;
+ struct diu *hw;
+ int ret;
+
+ hw = dr.diu_reg;
+
+ /* Read to clear the status */
+ status = in_be32(&(hw->int_status));
+
+ ret = request_irq(irq, fsl_diu_isr, 0, "diu", 0);
+ if (ret)
+ pr_info("Request diu IRQ failed.\n");
+ else {
+ ints = INT_PARERR | INT_LS_BF_VS;
+#if !defined(CONFIG_NOT_COHERENT_CACHE)
+ ints |= INT_VSYNC;
+#endif
+ if (dr.mode == MFB_MODE2 || dr.mode == MFB_MODE3)
+ ints |= INT_VSYNC_WB;
+
+ /* Read to clear the status */
+ status = in_be32(&(hw->int_status));
+ out_be32(&(hw->int_mask), ints);
+ }
+ return ret;
+}
+
+static void free_irq_local(int irq)
+{
+ struct diu *hw = dr.diu_reg;
+
+ /* Disable all LCDC interrupt */
+ out_be32(&(hw->int_mask), 0x1f);
+
+ free_irq(irq, 0);
+}
+
+#ifdef CONFIG_PM
+/*
+ * Power management hooks. Note that we won't be called from IRQ context,
+ * unlike the blank functions above, so we may sleep.
+ */
+static int fsl_diu_suspend(struct of_device *dev, pm_message_t state)
+{
+ struct fsl_diu_data *machine_data;
+
+ machine_data = dev_get_drvdata(&ofdev->dev);
+ disable_lcdc(machine_data->fsl_diu_info[0]);
+
+ return 0;
+}
+
+static int fsl_diu_resume(struct of_device *dev)
+{
+ struct fsl_diu_data *machine_data;
+
+ machine_data = dev_get_drvdata(&ofdev->dev);
+ enable_lcdc(machine_data->fsl_diu_info[0]);
+
+ return 0;
+}
+
+#else
+#define fsl_diu_suspend NULL
+#define fsl_diu_resume NULL
+#endif /* CONFIG_PM */
+
+/* Align to 64-bit(8-byte), 32-byte, etc. */
+static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align)
+{
+ u32 offset, ssize;
+ u32 mask;
+ dma_addr_t paddr = 0;
+
+ ssize = size + bytes_align;
+ buf->vaddr = dma_alloc_coherent(0, ssize, &paddr, GFP_DMA | __GFP_ZERO);
+ if (!buf->vaddr)
+ return -ENOMEM;
+
+ buf->paddr = (__u32) paddr;
+
+ mask = bytes_align - 1;
+ offset = (u32)buf->paddr & mask;
+ if (offset) {
+ buf->offset = bytes_align - offset;
+ buf->paddr = (u32)buf->paddr + offset;
+ } else
+ buf->offset = 0;
+ return 0;
+}
+
+static void free_buf(struct diu_addr *buf, u32 size, u32 bytes_align)
+{
+ dma_free_coherent(0, size + bytes_align,
+ buf->vaddr, (buf->paddr - buf->offset));
+ return;
+}
+
+static ssize_t store_monitor(struct device *device,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ int old_monitor_port;
+ unsigned long val;
+ struct fsl_diu_data *machine_data =
+ container_of(attr, struct fsl_diu_data, dev_attr);
+
+ if (strict_strtoul(buf, 10, &val))
+ return 0;
+
+ old_monitor_port = machine_data->monitor_port;
+ machine_data->monitor_port = diu_ops.set_sysfs_monitor_port(val);
+
+ if (old_monitor_port != machine_data->monitor_port) {
+ /* All AOIs need adjust pixel format
+ * fsl_diu_set_par only change the pixsel format here
+ * unlikely to fail. */
+ fsl_diu_set_par(machine_data->fsl_diu_info[0]);
+ fsl_diu_set_par(machine_data->fsl_diu_info[1]);
+ fsl_diu_set_par(machine_data->fsl_diu_info[2]);
+ fsl_diu_set_par(machine_data->fsl_diu_info[3]);
+ fsl_diu_set_par(machine_data->fsl_diu_info[4]);
+ }
+ return count;
+}
+
+static ssize_t show_monitor(struct device *device,
+ struct device_attribute *attr, char *buf)
+{
+ struct fsl_diu_data *machine_data =
+ container_of(attr, struct fsl_diu_data, dev_attr);
+ return diu_ops.show_monitor_port(machine_data->monitor_port, buf);
+}
+
+static int fsl_diu_probe(struct of_device *ofdev,
+ const struct of_device_id *match)
+{
+ struct device_node *np = ofdev->node;
+ struct mfb_info *mfbi;
+ phys_addr_t dummy_ad_addr;
+ int ret, i, error = 0;
+ struct resource res;
+ struct fsl_diu_data *machine_data;
+
+ machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL);
+ if (!machine_data)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) {
+ machine_data->fsl_diu_info[i] =
+ framebuffer_alloc(sizeof(struct mfb_info), &ofdev->dev);
+ if (!machine_data->fsl_diu_info[i]) {
+ dev_err(&ofdev->dev, "cannot allocate memory\n");
+ ret = -ENOMEM;
+ goto error2;
+ }
+ mfbi = machine_data->fsl_diu_info[i]->par;
+ memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info));
+ mfbi->parent = machine_data;
+ }
+
+ ret = of_address_to_resource(np, 0, &res);
+ if (ret) {
+ dev_err(&ofdev->dev, "could not obtain DIU address\n");
+ goto error;
+ }
+ if (!res.start) {
+ dev_err(&ofdev->dev, "invalid DIU address\n");
+ goto error;
+ }
+ dev_dbg(&ofdev->dev, "%s, res.start: 0x%08x\n", __func__, res.start);
+
+ dr.diu_reg = ioremap(res.start, sizeof(struct diu));
+ if (!dr.diu_reg) {
+ dev_err(&ofdev->dev, "Err: can't map DIU registers!\n");
+ ret = -EFAULT;
+ goto error2;
+ }
+
+ out_be32(&(dr.diu_reg->diu_mode), 0); /* disable DIU anyway*/
+
+ /* Get the IRQ of the DIU */
+ machine_data->irq = irq_of_parse_and_map(np, 0);
+
+ if (!machine_data->irq) {
+ dev_err(&ofdev->dev, "could not get DIU IRQ\n");
+ ret = -EINVAL;
+ goto error;
+ }
+ machine_data->monitor_port = monitor_port;
+
+ /* Area descriptor memory pool aligns to 64-bit boundary */
+ if (allocate_buf(&pool.ad, sizeof(struct diu_ad) * FSL_AOI_NUM, 8))
+ return -ENOMEM;
+
+ /* Get memory for Gamma Table - 32-byte aligned memory */
+ if (allocate_buf(&pool.gamma, 768, 32)) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ /* For performance, cursor bitmap buffer aligns to 32-byte boundary */
+ if (allocate_buf(&pool.cursor, MAX_CURS * MAX_CURS * 2, 32)) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ i = ARRAY_SIZE(machine_data->fsl_diu_info);
+ machine_data->dummy_ad = (struct diu_ad *)
+ ((u32)pool.ad.vaddr + pool.ad.offset) + i;
+ machine_data->dummy_ad->paddr = pool.ad.paddr +
+ i * sizeof(struct diu_ad);
+ machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr);
+ if (!machine_data->dummy_aoi_virt) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr);
+ machine_data->dummy_ad->pix_fmt = 0x88882317;
+ machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4);
+ machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2);
+ machine_data->dummy_ad->offset_xyi = 0;
+ machine_data->dummy_ad->offset_xyd = 0;
+ machine_data->dummy_ad->next_ad = 0;
+
+ out_be32(&(dr.diu_reg->desc[0]), machine_data->dummy_ad->paddr);
+ out_be32(&(dr.diu_reg->desc[1]), machine_data->dummy_ad->paddr);
+ out_be32(&(dr.diu_reg->desc[2]), machine_data->dummy_ad->paddr);
+
+ for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) {
+ machine_data->fsl_diu_info[i]->fix.smem_start = 0;
+ mfbi = machine_data->fsl_diu_info[i]->par;
+ mfbi->ad = (struct diu_ad *)((u32)pool.ad.vaddr
+ + pool.ad.offset) + i;
+ mfbi->ad->paddr = pool.ad.paddr + i * sizeof(struct diu_ad);
+ ret = install_fb(machine_data->fsl_diu_info[i]);
+ if (ret) {
+ dev_err(&ofdev->dev,
+ "Failed to register framebuffer %d\n",
+ i);
+ goto error;
+ }
+ }
+
+ if (request_irq_local(machine_data->irq)) {
+ dev_err(machine_data->fsl_diu_info[0]->dev,
+ "could not request irq for diu.");
+ goto error;
+ }
+
+ machine_data->dev_attr.attr.name = "monitor";
+ machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR;
+ machine_data->dev_attr.show = show_monitor;
+ machine_data->dev_attr.store = store_monitor;
+ error = device_create_file(machine_data->fsl_diu_info[0]->dev,
+ &machine_data->dev_attr);
+ if (error) {
+ dev_err(machine_data->fsl_diu_info[0]->dev,
+ "could not create sysfs %s file\n",
+ machine_data->dev_attr.attr.name);
+ }
+
+ dev_set_drvdata(&ofdev->dev, machine_data);
+ return 0;
+
+error:
+ for (i = ARRAY_SIZE(machine_data->fsl_diu_info);
+ i > 0; i--)
+ uninstall_fb(machine_data->fsl_diu_info[i - 1]);
+ if (pool.ad.vaddr)
+ free_buf(&pool.ad, sizeof(struct diu_ad) * FSL_AOI_NUM, 8);
+ if (pool.gamma.vaddr)
+ free_buf(&pool.gamma, 768, 32);
+ if (pool.cursor.vaddr)
+ free_buf(&pool.cursor, MAX_CURS * MAX_CURS * 2, 32);
+ if (machine_data->dummy_aoi_virt)
+ fsl_diu_free(machine_data->dummy_aoi_virt, 64);
+ iounmap(dr.diu_reg);
+
+error2:
+ for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++)
+ if (machine_data->fsl_diu_info[i])
+ framebuffer_release(machine_data->fsl_diu_info[i]);
+ kfree(machine_data);
+
+ return ret;
+}
+
+
+static int fsl_diu_remove(struct of_device *ofdev)
+{
+ struct fsl_diu_data *machine_data;
+ int i;
+
+ machine_data = dev_get_drvdata(&ofdev->dev);
+ disable_lcdc(machine_data->fsl_diu_info[0]);
+ free_irq_local(machine_data->irq);
+ for (i = ARRAY_SIZE(machine_data->fsl_diu_info); i > 0; i--)
+ uninstall_fb(machine_data->fsl_diu_info[i - 1]);
+ if (pool.ad.vaddr)
+ free_buf(&pool.ad, sizeof(struct diu_ad) * FSL_AOI_NUM, 8);
+ if (pool.gamma.vaddr)
+ free_buf(&pool.gamma, 768, 32);
+ if (pool.cursor.vaddr)
+ free_buf(&pool.cursor, MAX_CURS * MAX_CURS * 2, 32);
+ if (machine_data->dummy_aoi_virt)
+ fsl_diu_free(machine_data->dummy_aoi_virt, 64);
+ iounmap(dr.diu_reg);
+ for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++)
+ if (machine_data->fsl_diu_info[i])
+ framebuffer_release(machine_data->fsl_diu_info[i]);
+ kfree(machine_data);
+
+ return 0;
+}
+
+#ifndef MODULE
+static int __init fsl_diu_setup(char *options)
+{
+ char *opt;
+ unsigned long val;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((opt = strsep(&options, ",")) != NULL) {
+ if (!*opt)
+ continue;
+ if (!strncmp(opt, "monitor=", 8)) {
+ if (!strict_strtoul(opt + 8, 10, &val) && (val <= 2))
+ monitor_port = val;
+ } else if (!strncmp(opt, "bpp=", 4)) {
+ if (!strict_strtoul(opt + 4, 10, &val))
+ default_bpp = val;
+ } else
+ fb_mode = opt;
+ }
+
+ return 0;
+}
+#endif
+
+static struct of_device_id fsl_diu_match[] = {
+ {
+ .compatible = "fsl,diu",
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, fsl_diu_match);
+
+static struct of_platform_driver fsl_diu_driver = {
+ .owner = THIS_MODULE,
+ .name = "fsl_diu",
+ .match_table = fsl_diu_match,
+ .probe = fsl_diu_probe,
+ .remove = fsl_diu_remove,
+ .suspend = fsl_diu_suspend,
+ .resume = fsl_diu_resume,
+};
+
+static int __init fsl_diu_init(void)
+{
+#ifdef CONFIG_NOT_COHERENT_CACHE
+ struct device_node *np;
+ const u32 *prop;
+#endif
+ int ret;
+#ifndef MODULE
+ char *option;
+
+ /*
+ * For kernel boot options (in 'video=xxxfb:<options>' format)
+ */
+ if (fb_get_options("fslfb", &option))
+ return -ENODEV;
+ fsl_diu_setup(option);
+#endif
+ printk(KERN_INFO "Freescale DIU driver\n");
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+ np = of_find_node_by_type(NULL, "cpu");
+ if (!np) {
+ printk(KERN_ERR "Err: can't find device node 'cpu'\n");
+ return -ENODEV;
+ }
+
+ prop = of_get_property(np, "d-cache-size", NULL);
+ if (prop == NULL)
+ return -ENODEV;
+
+ /* Freescale PLRU requires 13/8 times the cache size to do a proper
+ displacement flush
+ */
+ coherence_data_size = *prop * 13;
+ coherence_data_size /= 8;
+
+ prop = of_get_property(np, "d-cache-line-size", NULL);
+ if (prop == NULL)
+ return -ENODEV;
+ d_cache_line_size = *prop;
+
+ of_node_put(np);
+ coherence_data = vmalloc(coherence_data_size);
+ if (!coherence_data)
+ return -ENOMEM;
+#endif
+ ret = of_register_platform_driver(&fsl_diu_driver);
+ if (ret) {
+ printk(KERN_ERR
+ "fsl-diu: failed to register platform driver\n");
+#if defined(CONFIG_NOT_COHERENT_CACHE)
+ vfree(coherence_data);
+#endif
+ iounmap(dr.diu_reg);
+ }
+ return ret;
+}
+
+static void __exit fsl_diu_exit(void)
+{
+ of_unregister_platform_driver(&fsl_diu_driver);
+#if defined(CONFIG_NOT_COHERENT_CACHE)
+ vfree(coherence_data);
+#endif
+}
+
+module_init(fsl_diu_init);
+module_exit(fsl_diu_exit);
+
+MODULE_AUTHOR("York Sun <yorksun@freescale.com>");
+MODULE_DESCRIPTION("Freescale DIU framebuffer driver");
+MODULE_LICENSE("GPL");
+
+module_param_named(mode, fb_mode, charp, 0);
+MODULE_PARM_DESC(mode,
+ "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
+module_param_named(bpp, default_bpp, ulong, 0);
+MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified mode");
+module_param_named(monitor, monitor_port, int, 0);
+MODULE_PARM_DESC(monitor,
+ "Specify the monitor port (0, 1 or 2) if supported by the platform");
+
diff --git a/drivers/video/fsl-diu-fb.h b/drivers/video/fsl-diu-fb.h
new file mode 100644
index 0000000..fc295d7
--- /dev/null
+++ b/drivers/video/fsl-diu-fb.h
@@ -0,0 +1,223 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Freescale DIU Frame Buffer device driver
+ *
+ * Authors: Hongjun Chen <hong-jun.chen@freescale.com>
+ * Paul Widmer <paul.widmer@freescale.com>
+ * Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ * York Sun <yorksun@freescale.com>
+ *
+ * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#ifndef __FSL_DIU_FB_H__
+#define __FSL_DIU_FB_H__
+
+/* Arbitrary threshold to determine the allocation method
+ * See mpc8610fb_set_par(), map_video_memory(), and unmap_video_memory()
+ */
+#define MEM_ALLOC_THRESHOLD (1024*768*4+32)
+/* Minimum value that the pixel clock can be set to in pico seconds
+ * This is determined by platform clock/3 where the minimum platform
+ * clock is 533MHz. This gives 5629 pico seconds.
+ */
+#define MIN_PIX_CLK 5629
+#define MAX_PIX_CLK 96096
+
+#include <linux/types.h>
+
+struct mfb_alpha {
+ int enable;
+ int alpha;
+};
+
+struct mfb_chroma_key {
+ int enable;
+ __u8 red_max;
+ __u8 green_max;
+ __u8 blue_max;
+ __u8 red_min;
+ __u8 green_min;
+ __u8 blue_min;
+};
+
+struct aoi_display_offset {
+ int x_aoi_d;
+ int y_aoi_d;
+};
+
+#define MFB_SET_CHROMA_KEY _IOW('M', 1, struct mfb_chroma_key)
+#define MFB_WAIT_FOR_VSYNC _IOW('F', 0x20, u_int32_t)
+#define MFB_SET_BRIGHTNESS _IOW('M', 3, __u8)
+
+#define MFB_SET_ALPHA 0x80014d00
+#define MFB_GET_ALPHA 0x40014d00
+#define MFB_SET_AOID 0x80084d04
+#define MFB_GET_AOID 0x40084d04
+#define MFB_SET_PIXFMT 0x80014d08
+#define MFB_GET_PIXFMT 0x40014d08
+
+#define FBIOGET_GWINFO 0x46E0
+#define FBIOPUT_GWINFO 0x46E1
+
+#ifdef __KERNEL__
+#include <linux/spinlock.h>
+
+/*
+ * These are the fields of area descriptor(in DDR memory) for every plane
+ */
+struct diu_ad {
+ /* Word 0(32-bit) in DDR memory */
+/* __u16 comp; */
+/* __u16 pixel_s:2; */
+/* __u16 pallete:1; */
+/* __u16 red_c:2; */
+/* __u16 green_c:2; */
+/* __u16 blue_c:2; */
+/* __u16 alpha_c:3; */
+/* __u16 byte_f:1; */
+/* __u16 res0:3; */
+
+ __be32 pix_fmt; /* hard coding pixel format */
+
+ /* Word 1(32-bit) in DDR memory */
+ __le32 addr;
+
+ /* Word 2(32-bit) in DDR memory */
+/* __u32 delta_xs:11; */
+/* __u32 res1:1; */
+/* __u32 delta_ys:11; */
+/* __u32 res2:1; */
+/* __u32 g_alpha:8; */
+ __le32 src_size_g_alpha;
+
+ /* Word 3(32-bit) in DDR memory */
+/* __u32 delta_xi:11; */
+/* __u32 res3:5; */
+/* __u32 delta_yi:11; */
+/* __u32 res4:3; */
+/* __u32 flip:2; */
+ __le32 aoi_size;
+
+ /* Word 4(32-bit) in DDR memory */
+ /*__u32 offset_xi:11;
+ __u32 res5:5;
+ __u32 offset_yi:11;
+ __u32 res6:5;
+ */
+ __le32 offset_xyi;
+
+ /* Word 5(32-bit) in DDR memory */
+ /*__u32 offset_xd:11;
+ __u32 res7:5;
+ __u32 offset_yd:11;
+ __u32 res8:5; */
+ __le32 offset_xyd;
+
+
+ /* Word 6(32-bit) in DDR memory */
+ __u8 ckmax_r;
+ __u8 ckmax_g;
+ __u8 ckmax_b;
+ __u8 res9;
+
+ /* Word 7(32-bit) in DDR memory */
+ __u8 ckmin_r;
+ __u8 ckmin_g;
+ __u8 ckmin_b;
+ __u8 res10;
+/* __u32 res10:8; */
+
+ /* Word 8(32-bit) in DDR memory */
+ __le32 next_ad;
+
+ /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
+ __u32 paddr;
+} __attribute__ ((packed));
+
+/* DIU register map */
+struct diu {
+ __be32 desc[3];
+ __be32 gamma;
+ __be32 pallete;
+ __be32 cursor;
+ __be32 curs_pos;
+ __be32 diu_mode;
+ __be32 bgnd;
+ __be32 bgnd_wb;
+ __be32 disp_size;
+ __be32 wb_size;
+ __be32 wb_mem_addr;
+ __be32 hsyn_para;
+ __be32 vsyn_para;
+ __be32 syn_pol;
+ __be32 thresholds;
+ __be32 int_status;
+ __be32 int_mask;
+ __be32 colorbar[8];
+ __be32 filling;
+ __be32 plut;
+} __attribute__ ((packed));
+
+struct diu_hw {
+ struct diu *diu_reg;
+ spinlock_t reg_lock;
+
+ __u32 mode; /* DIU operation mode */
+};
+
+struct diu_addr {
+ __u8 __iomem *vaddr; /* Virtual address */
+ dma_addr_t paddr; /* Physical address */
+ __u32 offset;
+};
+
+struct diu_pool {
+ struct diu_addr ad;
+ struct diu_addr gamma;
+ struct diu_addr pallete;
+ struct diu_addr cursor;
+};
+
+#define FSL_DIU_BASE_OFFSET 0x2C000 /* Offset of DIU */
+#define INT_LCDC 64 /* DIU interrupt number */
+
+#define FSL_AOI_NUM 6 /* 5 AOIs and one dummy AOI */
+ /* 1 for plane 0, 2 for plane 1&2 each */
+
+/* Minimum X and Y resolutions */
+#define MIN_XRES 64
+#define MIN_YRES 64
+
+/* HW cursor parameters */
+#define MAX_CURS 32
+
+/* Modes of operation of DIU */
+#define MFB_MODE0 0 /* DIU off */
+#define MFB_MODE1 1 /* All three planes output to display */
+#define MFB_MODE2 2 /* Plane 1 to display, planes 2+3 written back*/
+#define MFB_MODE3 3 /* All three planes written back to memory */
+#define MFB_MODE4 4 /* Color bar generation */
+
+/* INT_STATUS/INT_MASK field descriptions */
+#define INT_VSYNC 0x01 /* Vsync interrupt */
+#define INT_VSYNC_WB 0x02 /* Vsync interrupt for write back operation */
+#define INT_UNDRUN 0x04 /* Under run exception interrupt */
+#define INT_PARERR 0x08 /* Display parameters error interrupt */
+#define INT_LS_BF_VS 0x10 /* Lines before vsync. interrupt */
+
+/* Panels'operation modes */
+#define MFB_TYPE_OUTPUT 0 /* Panel output to display */
+#define MFB_TYPE_OFF 1 /* Panel off */
+#define MFB_TYPE_WB 2 /* Panel written back to memory */
+#define MFB_TYPE_TEST 3 /* Panel generate color bar */
+
+#endif /* __KERNEL__ */
+#endif /* __FSL_DIU_FB_H__ */
--
1.5.2.2
^ permalink raw reply related
* Re: [PATCH 4/5] [PPC] update lmb for hotplug memory add/remove
From: Kumar Gala @ 2008-03-28 2:40 UTC (permalink / raw)
To: Badari Pulavarty; +Cc: linuxppc-dev, Andrew Morton, paulus, lkml, Yasunori Goto
In-Reply-To: <1206664759.19368.11.camel@dyn9047017100.beaverton.ibm.com>
On Mar 27, 2008, at 7:39 PM, Badari Pulavarty wrote:
> ppc kernel maintains information about logical memory blocks in
> lmb.memory structure at the boot time. Its not updated for
> hotplug memory add/remove. hotplug memory notifier for memory
> add/remove now updates lmb.memory.
>
> This information is useful for eHEA driver to find out the memory
> layout and holes.
>
> NOTE: No special locking is needed for lmb_add() and lmb_remove().
> Calls to these are serialized by caller. (pSeries_reconfig_chain).
>
> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
> ---
> arch/powerpc/platforms/pseries/hotplug-memory.c | 43 +++++++++++++++
> include/linux/lmb.h | 3 -
> lib/lmb.c | 66 ++++++++++++++
> ++++++----
> 3 files changed, 102 insertions(+), 10 deletions(-)
How is lmb_remove different than lmb_alloc?
- k
^ permalink raw reply
* RE: [PATCH] ucc_geth: Add 8 bytes to max TX frame for VLANs
From: Li Yang @ 2008-03-28 2:54 UTC (permalink / raw)
To: joakim.tjernlund; +Cc: Netdev, Linuxppc-Embedded@Ozlabs.Org
In-Reply-To: <1206621833.7589.286.camel@gentoo-jocke.transmode.se>
> > Hi Jocke,
> >=20
> > QUICC engine supports dynamic maximum frame length. If you are not=20
> > expecting to receive only tagged frames, I recommend to use this=20
> > feature by setting dynamicMaxFrameLength and=20
> dynamicMinFrameLength in=20
> > ug_info instead of increasing the MaxLength for both tagged=20
> and untagged frames.
> > See the following part from the reference manual.
> >=20
> > The MFLR entry in the Global Parameter RAM defines the=20
> length of the=20
> > largest frame, excluding Q TAG but including FCS, that is=20
> still valid.=20
> > When REMODER[DXE]=3D1, a tagged frame that has length equals
> > MaxLength+4 considered valid, and a non tagged frame that has length
> > equals MaxLength is the longest
> > that is still considered valid. When REMODER[DXE]=3D0, any=20
> frame longer=20
> > than MaxLength consider erroneous frame.
> > For systems with only tagged frames, set REMODER[DXE]=3D0 and set=20
> > MaxLength =3D Max LLC size+4.
> >=20
> > - Leo
>=20
> Interesting, that should also work although QinQ will not. I=20
> will have a closer look but I still don't see how my orginal=20
> patch would harm anything. One could add my patch on top but=20
> with only 4 bytes extra.
Hi,
The increase of max packet length may cause a waste of QE internal
buffer for every packet. Furthermore it affects the hardware statistics
of jumbo packets.
- Leo
^ permalink raw reply
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