ust the new comments.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
lib/earlycpio.c | 27 ++-
1 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/lib/earlycpio.c b/lib/earlycpio.c
index 7aa7ce2..c7ae5ed 100644
--- a/lib/earlycpio.c
+++ b/lib/earlycpi
This patch splits acpi_boot_table_init() into two steps,
so that we can do each step separately in later patches.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
arch/x86/kernel/acpi/boot.c |6 +-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel
This patch splits acpi_tb_parse_root_table() into two steps, and
introduces two new functions:
acpi_tb_root_table_install() and acpi_tb_root_table_override().
They are just the same as acpi_tb_parse_root_table() if they are
called in sequence.
Signed-off-by: Tang Chen
Reviewed-by: Zhang
will keep acpi_table_init() works as before on
other platforms, and we only call these new functions in Linux.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/tables.c | 26 --
include/linux/acpi.h |2 ++
2 files changed, 22 insertions(+), 6
| MEMBLK_HOTPLUG or just MEMBLK_HOTPLUG. So remove
MEMBLK_DEFAULT (which is 0), and just use 0 by default to avoid confusions
to users.
Suggested-by: Wen Congyang
Suggested-by: Liu Jiang
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
include/linux/memblock.
SRAT.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbxface.c | 32
drivers/acpi/osl.c| 22 ++
include/acpi/acpixf.h |4
include/linux/acpi.h |4
mm/memory_hotp
m is making the nodes the kerenl resides in unhotpluggable. So, before we
do
this, we don't mark any hotpluggable memory in memory so that to keep memblock
working as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers
This patch splits acpi_initialize_tables() into two steps, and
introduces two new functions:
acpi_initialize_tables_firmware() and acpi_tb_root_table_override(),
which work just the same as acpi_initialize_tables() if they are called
in sequence.
Signed-off-by: Tang Chen
Reviewed-by: Zhang
le the memory allocation.
2. Change "movablecore=acpi" boot option to "movablenode" boot option.
Thanks.
Tang Chen (24):
acpi: Print Hot-Pluggable Field in SRAT.
earlycpio.c: Fix the confusing comment of find_cpio_data().
acpi: Remove "continue" in macro INVAL
Signed-off-by: Tang Chen
Signed-off-by: Jiang Liu
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yanfei
Acked-by: Toshi Kani
---
arch/x86/mm/numa.c |5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 8bf93ba..d532b6d 100644
--
won't have enough
memory to boot.
This patch finds out which memory regions the kernel resides in,
and skip them when finding all hotpluggable memory regions.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
mm/memory_hotplug.c | 45 +
1
the
hotpluggable memory regions in memblock and a function memblock_mark_hotplug()
to mark hotpluggable memory if we find one.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
include/linux/memblock.h | 11 +++
mm/memblock.c| 26 ++
mm
s
functionality. For those who don't use memory hotplug or who don't want
to lose their NUMA performance, just don't specify anything. The kernel
will work as before.
Suggested-by: Kamezawa Hiroyuki
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yan
arrange hotpluggable memory in SRAT as ZONE_MOVABLE. And if users do this, all
the other movablecore=nn@ss and kernelcore=nn@ss options should be ignored.
For those who don't want this, just specify nothing. The kernel will act as
before.
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
The Hot-Pluggable field in SRAT suggests if the memory could be
hotplugged while the system is running. Print it as well when
parsing SRAT will help users to know which memory is hotpluggable.
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yanfei
Acked-by: Tejun Heo
acpi_tb_install_table() in acpi_tb_parse_root_table(). This will
keep acpi_tb_parse_root_table() works as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbutils.c |9 +++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/acpica
On 08/07/2013 07:33 AM, Toshi Kani wrote:
On Fri, 2013-08-02 at 17:14 +0800, Tang Chen wrote:
This patch introduce early_acpi_firmware_srat() to find the
phys addr of SRAT provided by firmware. And call it in
find_hotpluggable_memory().
Since we have initialized acpi_gbl_root_table_list
won't have enough
memory to boot.
This patch finds out which memory regions the kernel resides in,
and skip them when finding all hotpluggable memory regions.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
mm/memory_hotplug.c | 45 +
1
On 08/05/2013 10:52 PM, Tejun Heo wrote:
On Mon, Aug 05, 2013 at 02:22:47PM +0800, Tang Chen wrote:
I have resent the v2 patch-set. Would you please give some more
comments about the memblock and x86 booting code modification ?
Patch 13 still seems corrupt. Is it a problem on my side maybe
Hi hpa,
I'm sorry but I don't quite following it.
On 08/05/2013 09:07 PM, H. Peter Anvin wrote:
On 08/01/2013 12:06 AM, Tang Chen wrote:
This patch-set aims to solve some problems at system boot time
to enhance memory hotplug functionality.
[Background]
The Linux kernel cann
Hi Rafael,
On 08/05/2013 09:26 PM, Rafael J. Wysocki wrote:
..
I think I understand what you're trying to achieve and I don't have objections
agaist the goal, but the matter is *how* to do that.
Why don't you do something like this:
(1) Introduce two new functions that will each do part of
14 PM, Tang Chen wrote:
At early time, memblock will reserve some memory for the kernel,
such as the kernel code and data segments, initrd file, and so on，
which means the kernel resides in these memory regions.
Even if these memory regions are hotpluggable, we should not
mark them as hotplug
Hi Rafael,
On 08/02/2013 09:00 PM, Rafael J. Wysocki wrote:
..
This patch splits acpi_boot_table_init() into two steps:
1. Parse RSDT, which cannot be overrided, and initialize
acpi_gbl_root_table_list. (step 1 + 2 above)
2. Install all ACPI tables into acpi_gbl_root_table_list.
(ste
Hi Rafael,
On 08/02/2013 09:03 PM, Rafael J. Wysocki wrote:
On Friday, August 02, 2013 05:14:26 PM Tang Chen wrote:
Besides the phys addr of the acpi tables, it will be very convenient if
we also have the signature of each table in acpi_gbl_root_table_list at
early time. We can find SRAT
m is making the nodes the kerenl resides in unhotpluggable. So, before we
do
this, we don't mark any hotpluggable memory in memory so that to keep memblock
working as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers
tep 1 earlier, right after memblock is ready.
When memblock_x86_fill() is called to fulfill memblock.memory[],
memblock is able to allocate memory.
This patch introduces a new function acpi_root_table_init() to
do step 1, and call this function right after memblock_x86_fill()
is called.
Signed-off-by:
for (...) {
...
if (...) {
ACPI_INVALID_TABLE()
continue;
}
...
}
Add the "continue" wherever the macro is called.
(For now, it is only called in acpi_initrd_override().)
The idea is from Yi
in the subsequent patches.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
Acked-by: Toshi Kani
Acked-by: Rafael J. Wysocki
---
drivers/acpi/osl.c | 86 +---
1 files changed, 61 insertions(+), 25 deletions(-)
diff --git a/drivers/acpi
initialize
acpi_gbl_root_table_list. (step 1 + 2 above)
2. Install all ACPI tables into acpi_gbl_root_table_list.
(step 3 + 4 above)
In later patches, we will do step 1 + 2 earlier.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbutils.c | 25 ++---
dr
ust the new comments.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
lib/earlycpio.c | 27 ++-
1 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/lib/earlycpio.c b/lib/earlycpio.c
index 7aa7ce2..c7ae5ed 100644
--- a/lib/earlycpio.c
+++ b/lib/earlycpi
inux 3.11-rc3.
change log v1 -> v2:
1. According to Tejun's advice, make ACPI side report which memory regions
are hotpluggable, and memblock side handle the memory allocation.
2. Change "movablecore=acpi" boot option to "movablenode" boot option.
Thanks.
Tang Chen (
the
hotpluggable memory regions in memblock and a function memblock_mark_hotplug()
to mark hotpluggable memory if we find one.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
include/linux/memblock.h | 11 +++
mm/memblock.c| 26 ++
mm
won't have enough
memory to boot.
This patch finds out which memory regions the kernel resides in,
and skip them when finding all hotpluggable memory regions.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
mm/memory_hotplug.c | 45 +
1
Signed-off-by: Tang Chen
Signed-off-by: Jiang Liu
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yanfei
Acked-by: Toshi Kani
---
arch/x86/mm/numa.c |5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 8bf93ba..d532b6d 100644
--
SRAT.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbxface.c | 32
drivers/acpi/osl.c| 22 ++
include/acpi/acpixf.h |4
include/linux/acpi.h |4
mm/memory_hotp
s
functionality. For those who don't use memory hotplug or who don't want
to lose their NUMA performance, just don't specify anything. The kernel
will work as before.
Suggested-by: Kamezawa Hiroyuki
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yan
this
check won't skip any memory, which means the kernel will act as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
mm/memblock.c |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/mm/memblock.c b/mm/memblock.c
index ecd8568..3ea4301 100644
---
arrange hotpluggable memory in SRAT as ZONE_MOVABLE. And if users do this, all
the other movablecore=nn@ss and kernelcore=nn@ss options should be ignored.
For those who don't want this, just specify nothing. The kernel will act as
before.
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
The Hot-Pluggable field in SRAT suggests if the memory could be
hotplugged while the system is running. Print it as well when
parsing SRAT will help users to know which memory is hotpluggable.
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yanfei
Acked-by: Tejun Heo
time.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbutils.c | 22 ++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index e3621cf..af942fe 100644
--- a/drivers
In the following patches, we need to call get_ramdisk_{image|size}()
to get initrd file's address and size. So make these two functions
global.
v1 -> v2:
As tj suggested, make these two function static inline in
arch/x86/include/asm/setup.h.
Signed-off-by: Tang Chen
Reviewed-by: Zhan
| MEMBLK_HOTPLUG or just MEMBLK_HOTPLUG. So remove
MEMBLK_DEFAULT (which is 0), and just use 0 by default to avoid confusions
to users.
Suggested-by: Wen Congyang
Suggested-by: Liu Jiang
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
include/linux/memblock.
early_acpi_override_srat() to find out which memory is
hotpluggable in the override SRAT.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
arch/x86/kernel/setup.c| 10 ++
drivers/acpi/osl.c | 61
include/linux/acpi.h | 14
On 08/02/2013 07:54 AM, Toshi Kani wrote:
..
/*
+ * acpi_root_table_init - Initialize acpi_gbl_root_table_list.
+ *
+ * This function will parse RSDT or XSDT, find all tables' phys addr,
+ * initialize acpi_gbl_root_table_list, and record all tables' phys addr
+ * in acpi_gbl_root_table_lis
On 08/01/2013 09:42 PM, Tejun Heo wrote:
On Thu, Aug 01, 2013 at 03:06:35PM +0800, Tang Chen wrote:
At early time, memblock will reserve some memory for the kernel,
such as the kernel code and data segments, initrd file, and so on=EF=BC=8C
which means the kernel resides in these memory regions
On 08/02/2013 09:19 AM, Toshi Kani wrote:
..
+phys_addr_t __init early_acpi_override_srat(void)
+{
+ int i;
+ u32 length;
+ long offset;
+ void *ramdisk_vaddr;
+ struct acpi_table_header *table;
+ struct cpio_data file;
+ unsigned long map_step = NR_F
On 08/02/2013 05:57 AM, Toshi Kani wrote:
..
struct cpio_data __cpuinit find_cpio_data(const char *path, void *data,
This patch does not apply cleanly. It seems that your branch does not
have 0db0628d90125193280eabb501c94feaf48fa9ab.
I have rebased the patch-set to linux 3.11-rc3. And
On 08/02/2013 06:26 AM, Toshi Kani wrote:
..
+int __init acpi_invalid_table(struct cpio_data *file,
+ const char *path, const char *signature)
Since this function verifies a given acpi table in initrd (not that the
table is invalid), I'd suggest to rename it some
On 08/02/2013 06:06 AM, Toshi Kani wrote:
..
/* Non-fatal errors: Affected tables/files are ignored */
#define INVALID_TABLE(x, path, name) \
Since you are touching this macro, I'd suggest to rename it something
like ACPI_INVALID_TABLE(). INVALID_TABLE(
arrange hotpluggable memory in SRAT as ZONE_MOVABLE. And if users do this, all
the other movablecore=nn@ss and kernelcore=nn@ss options should be ignored.
For those who don't want this, just specify nothing. The kernel will act as
before.
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
tep 1 earlier, right after memblock is ready.
When memblock_x86_fill() is called to fulfill memblock.memory[],
memblock is able to allocate memory.
This patch introduces a new function acpi_root_table_init() to
do step 1, and call this function right after memblock_x86_fill()
is called.
Signed-off-by:
}
...
}
Add the "continue" wherever the macro is called.
(For now, it is only called in acpi_initrd_override().)
The idea is from Yinghai Lu .
Signed-off-by: Tang Chen
Signed-off-by: Yinghai Lu
Acked-by: Tejun Heo
Reviewed-by: Zhang Yanfei
---
drivers/acpi/osl
in the subsequent patches.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/osl.c | 86 +---
1 files changed, 61 insertions(+), 25 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 91d9f54..8df8a93
ust the new comments.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
lib/earlycpio.c | 27 ++-
1 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/lib/earlycpio.c b/lib/earlycpio.c
index 8078ef4..7affac0 100644
--- a/lib/earlycpio.c
+++ b/lib/earlycpi
The Hot-Pluggable field in SRAT suggests if the memory could be
hotplugged while the system is running. Print it as well when
parsing SRAT will help users to know which memory is hotpluggable.
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yanfei
Acked-by: Tejun Heo
initialize
acpi_gbl_root_table_list. (step 1 + 2 above)
2. Install all ACPI tables into acpi_gbl_root_table_list.
(step 3 + 4 above)
In later patches, we will do step 1 + 2 earlier.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbutils.c | 25 ++---
dr
Signed-off-by: Tang Chen
Signed-off-by: Jiang Liu
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yanfei
---
arch/x86/mm/numa.c |5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index a71c4e2..5013583 100644
--- a/arch/x86/mm/numa.c
time.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbutils.c | 22 ++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 9d68ffc..5d31887 100644
--- a/drivers
SRAT.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbxface.c | 32
drivers/acpi/osl.c| 22 ++
include/acpi/acpixf.h |4
include/linux/acpi.h |4
mm/memory_hotp
| MEMBLK_HOTPLUG or just MEMBLK_HOTPLUG. So remove
MEMBLK_DEFAULT (which is 0), and just use 0 by default to avoid confusions
to users.
Suggested-by: Wen Congyang
Suggested-by: Liu Jiang
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
include/linux/memblock.
m is making the nodes the kerenl resides in unhotpluggable. So, before we
do
this, we don't mark any hotpluggable memory in memory so that to keep memblock
working as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers
this
check won't skip any memory, which means the kernel will act as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
mm/memblock.c |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/mm/memblock.c b/mm/memblock.c
index 05e142b..84bd568 100644
---
the
hotpluggable memory regions in memblock and a function memblock_mark_hotplug()
to mark hotpluggable memory if we find one.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
include/linux/memblock.h | 12
mm/memblock.c| 26 ++
mm
s
functionality. For those who don't use memory hotplug or who don't want
to lose their NUMA performance, just don't specify anything. The kernel
will work as before.
Suggested-by: Kamezawa Hiroyuki
Signed-off-by: Tang Chen
Reviewed-by: Wanpeng Li
Reviewed-by: Zhang Yan
won't have enough
memory to boot.
This patch finds out which memory regions the kernel resides in,
and skip them when finding all hotpluggable memory regions.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
mm/memory_hotplug.c | 45 +
1
ore=acpi" boot option to "movablenode" boot option.
Thanks.
Tang Chen (17):
acpi: Print Hot-Pluggable Field in SRAT.
earlycpio.c: Fix the confusing comment of find_cpio_data().
acpi: Remove "continue" in macro INVALID_TABLE().
acpi: Introduce acp
In the following patches, we need to call get_ramdisk_{image|size}()
to get initrd file's address and size. So make these two functions
global.
v1 -> v2:
As tj suggested, make these two function static inline in
arch/x86/include/asm/setup.h.
Signed-off-by: Tang Chen
Reviewed-by: Zhan
early_acpi_override_srat() to find out which memory is
hotpluggable in the override SRAT.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
arch/x86/kernel/setup.c| 10 +++
drivers/acpi/osl.c | 58
include/linux/acpi.h
On 07/26/2013 06:26 PM, Tejun Heo wrote:
On Fri, Jul 26, 2013 at 11:45:36AM +0800, Tang Chen wrote:
I just don't want to any new variables to store the hotpluggable regions.
But without a new shared variable, it seems difficult to achieve the goal
you said below.
Why can't it be don
On 07/25/2013 11:05 PM, Tejun Heo wrote:
Hello, Tang.
On Thu, Jul 25, 2013 at 12:09:29PM +0800, Tang Chen wrote:
And as in [patch 14/21], when reserving hotpluggable memory, we use
pxm. So my
Which is kinda nasty.
Yes, will remove it.
idea was to do a nid sync in numa_init(). After
On 07/25/2013 11:09 PM, Tejun Heo wrote:
Hello, Tang.
On Thu, Jul 25, 2013 at 11:50:12AM +0800, Tang Chen wrote:
movablecore boot option was used to specify the size of ZONE_MOVABLE. And
this patch-set aims to arrange ZONE_MOVABLE with SRAT info. So my original
thinking is to reuse movablecore
On 07/25/2013 11:17 PM, Tejun Heo wrote:
Hello,
On Thu, Jul 25, 2013 at 10:13:21AM +0800, Tang Chen wrote:
This is rather hacky. Why not just introduce MEMBLOCK_NO_MERGE flag?
The original thinking is to merge regions with the same nid. So I used pxm.
And then refresh the nid field when
On 07/24/2013 03:45 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:21PM +0800, Tang Chen wrote:
@@ -514,6 +514,7 @@ acpi_tb_install_table(acpi_physical_address address,
* fully mapped later (in verify table). In any case, we must
* unmap the header that was mapped above
On 07/24/2013 11:54 PM, Tejun Heo wrote:
On Wed, Jul 24, 2013 at 10:53:10AM +0800, Tang Chen wrote:
Let's please drop "with" and do we really need to print full 16
digits?
Sure, will remove "with". But I think printing out the full flags is batter.
The output
On 07/24/2013 05:25 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:31PM +0800, Tang Chen wrote:
Vasilis Liaskovitis found that before we parse SRAT and fulfill numa_meminfo,
the nids of all the regions in memblock.reserve[] are MAX_NUMNODES. That is
because nids have not been mapped at that
On 07/24/2013 05:21 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:34PM +0800, Tang Chen wrote:
Since we modify movablecore boot option to support
"movablecore=acpi", this patch adds doc for it.
Please fold this into the patch which makes the code chnage.
OK, followed.
Tha
On 07/24/2013 05:11 AM, Tejun Heo wrote:
On Tue, Jul 23, 2013 at 05:04:35PM -0400, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:30PM +0800, Tang Chen wrote:
...
Users can specify "movablecore=acpi" in kernel commandline to enable this
functionality. For those who don't use me
On 07/24/2013 05:00 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:29PM +0800, Tang Chen wrote:
We reserved hotpluggable memory in memblock at early time. And when memory
initialization is done, we have to free it to buddy system.
This patch free memory reserved by memblock with flag
On 07/24/2013 04:59 AM, Tejun Heo wrote:
..
+static bool __init kernel_resides_in_range(phys_addr_t base, u64 length)
+{
+ int i;
+ struct memblock_type *reserved =&memblock.reserved;
+ struct memblock_region *region;
+ phys_addr_t start, end;
+
+ for (i = 0; i<
On 07/24/2013 05:32 AM, Tejun Heo wrote:
On Tue, Jul 23, 2013 at 04:55:57PM -0400, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:27PM +0800, Tang Chen wrote:
+ /*
+* In such an early time, we don't have nid. We specify pxm
+* inste
On 07/24/2013 07:26 AM, Cody P Schafer wrote:
On 07/19/2013 12:59 AM, Tang Chen wrote:
..
+/*
+ * acpi_get_table_desc - Get the acpi table descriptor of a specific
table.
+ * @signature: The signature of the table to be found.
+ * @out_desc: The out returned descriptor.
The "@out
On 07/24/2013 04:49 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:26PM +0800, Tang Chen wrote:
..
+ for (pos = 0;
+pos< acpi_gbl_root_table_list.current_table_count;
+pos++) {
+ if (!ACPI_COMPARE_N
On 07/24/2013 04:27 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:25PM +0800, Tang Chen wrote:
As we mentioned in previous patches, to prevent the kernel
Prolly best to briefly describe what the overall goal is about.
Sure. Here is the overall picture, and will add it to log.
Linux
Commit-ID: 82982d729319e975115d88cae4927dffb02bfea7
Gitweb: http://git.kernel.org/tip/82982d729319e975115d88cae4927dffb02bfea7
Author: Tang Chen
AuthorDate: Tue, 23 Jul 2013 16:00:19 +0800
Committer: Ingo Molnar
CommitDate: Tue, 23 Jul 2013 10:08:16 +0200
x86/acpi: Fix incorrect
On 07/24/2013 04:09 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:24PM +0800, Tang Chen wrote:
From: Yasuaki Ishimatsu
If system can create movable node which all memory of the
node is allocated as ZONE_MOVABLE, setup_node_data() cannot
allocate memory for the node's pg_data_t.
So
On 07/24/2013 04:02 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:23PM +0800, Tang Chen wrote:
- * @offset: When a matching file is found, this is the offset to the
- * beginning of the cpio. It can be used to iterate through
- * the cpio to find all files inside of a
On 07/24/2013 03:56 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:22PM +0800, Tang Chen wrote:
In the following patches, we need to call get_ramdisk_{image|size}()
to get initrd file's address and size. So make these two functions
global.
Signed-off-by: Tang Chen
---
arch/x86/in
On 07/24/2013 03:19 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:16PM +0800, Tang Chen wrote:
/* Definition of memblock flags. */
#define MEMBLK_FLAGS_DEFAULT 0x0 /* default flag */
+#define MEMBLK_HOTPLUGGABLE0x1 /* hotpluggable region */
Given that all existing APIs
On 07/24/2013 03:09 AM, Tejun Heo wrote:
Hello,
On Fri, Jul 19, 2013 at 03:59:15PM +0800, Tang Chen wrote:
+#define MEMBLK_FLAGS_DEFAULT 0x0 /* default flag */
Please don't do this. Just clearing the struct as zero is enough.
@@ -439,12 +449,14 @@ repeat:
int __init_mem
On 07/24/2013 02:48 AM, Tejun Heo wrote:
On Fri, Jul 19, 2013 at 03:59:14PM +0800, Tang Chen wrote:
The Hot-Pluggable field in SRAT suggests if the memory could be
hotplugged while the system is running. Print it as well when
parsing SRAT will help users to know which memory is hotpluggable
We wanted to check if the acpi id is out of range. It should be:
if (id >= MAX_LOCAL_APIC).
v1 -> v2:
Remove the superfluous parentheses around MAX_LOCAL_APIC.
Signed-off-by: Tang Chen
Reviewed-by: Len Brown
---
arch/x86/kernel/acpi/boot.c |2 +-
1 file changed, 1 insertion
On 07/23/2013 03:39 PM, Ingo Molnar wrote:
* Tang Chen wrote:
We wanted to check if the acpi id is out of range. It should be:
if (id>= (MAX_LOCAL_APIC)).
Does this have any practical impact, or can it wait until v3.12?
I haven't tested out any impact now, just found
We wanted to check if the acpi id is out of range. It should be:
if (id >= (MAX_LOCAL_APIC)).
Signed-off-by: Tang Chen
---
arch/x86/kernel/acpi/boot.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
in
Hi,
Forgot to mention, this patch-set is based on linux-3.10 release.
Thanks. :)
On 07/19/2013 03:59 PM, Tang Chen wrote:
This patch-set aims to solve some problems at system boot time
to enhance memory hotplug functionality.
[Background]
The Linux kernel cannot migrate pages used by the
.
Reported-by: Vasilis Liaskovitis
Signed-off-by: Tang Chen
---
include/linux/memblock.h |1 +
include/linux/mm.h |9 +
mm/memblock.c| 11 +--
3 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/include/linux/memblock.h b/include/linux
7;s prototype unmodified.
4) Modify other APIs to support flags, but keep their prototype unmodified.
The idea is from Wen Congyang and Liu Jiang
.
Suggested-by: Wen Congyang
Suggested-by: Liu Jiang
Signed-off-by: Tang Chen
---
include/linux/memblock.h |4 +
}
...
}
Add the "continue" wherever the macro is called.
(For now, it is only called in acpi_initrd_override().)
The idea is from Yinghai Lu .
Signed-off-by: Tang Chen
Signed-off-by: Yinghai Lu
---
drivers/acpi/osl.c | 18 +-
1 files changed, 13 in
initialize
acpi_gbl_root_table_list. (step 1 + 2 above)
2. Install all ACPI tables into acpi_gbl_root_table_list.
(step 3 + 4 above)
In later patches, we will do step 1 + 2 earlier.
Signed-off-by: Tang Chen
---
drivers/acpi/acpica/tbutils.c | 25 ++---
drivers/acpi/tables.c
patch introduces MEMBLK_HOTPLUGGABLE flag, and an API to reserve
memory with MEMBLK_HOTPLUGGABLE flag. This is a preparation for the
coming patches.
Signed-off-by: Tang Chen
---
include/linux/memblock.h |2 ++
mm/memblock.c|6 ++
2 files changed, 8 insertions(+), 0 dele
ggable memory info as early as possible,
this patch-set only parse memory affinities in SRAT one more time right
after memblock is ready, and leave all the other pathes untouched. With
the hotpluggable memory info, we can arrange hotpluggable memory in
ZONE_MOVABLE to prevent the kernel to use it.
Thank
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