On 08/12/2013 11:46 PM, Tejun Heo wrote:
Hello,
On Mon, Aug 12, 2013 at 11:41:25PM +0800, Tang Chen wrote:
Then there is no way to tell the users which memory is hotpluggable.
phys addr is not user friendly. For users, node or memory device is the
best. The firmware should arrange
On 08/12/2013 11:23 PM, Tejun Heo wrote:
Hello,
On Mon, Aug 12, 2013 at 08:14:04AM -0700, H. Peter Anvin wrote:
It gets really messy if it is advisory. Suddenly you have the user
thinking they can hotswap a memory bank and they just can't.
I'm very skeptical that not doing the strict
Hi tj,
On 08/13/2013 12:22 AM, Tejun Heo wrote:
Hello, Tang.
On Tue, Aug 13, 2013 at 12:19:02AM +0800, Tang Chen wrote:
The kernel can export info to users. The point is what kind of info.
Exporting phys addr is meaningless, of course. Now in /sys, we only
have memory_block and node
On 08/13/2013 12:46 AM, Tejun Heo wrote:
Hello, Tang.
..
But, different users have different ways to use memory hotplug.
Hotswaping any particular chunk of memory is the goal we will reach
finally. But it is on specific hardware. In most current machines, we
can use movable node to
On 08/13/2013 12:46 AM, Tejun Heo wrote:
..
* Adding an option to tell the kernel to try to stay away from
hotpluggable nodes is fine. I have no problem with that at all.
* The patchsets upto this point have been somehow trying to reorder
operations shomehow such that *no* memory
ur patient and help. :)
On 08/13/2013 02:14 PM, Tang Chen wrote:
On 08/13/2013 12:46 AM, Tejun Heo wrote:
..
* Adding an option to tell the kernel to try to stay away from
hotpluggable nodes is fine. I have no problem with that at all.
* The patchsets upto this point have been somehow trying
Hi Bob, Rafael,
I think these patches are unnecessary now. mm guys have decided to do
memory hotplug in another way, an easier way that we don't need to touch
ACPICA code.
So please ignore this patch-set.
Thanks for the help and suggestions. :)
On 08/08/2013 11:39 AM, Tang Chen wrote
In setup_arch() of x86, it set memblock.current_limit directly.
We should use memblock_set_current_limit(). If the implementation
is changed, it is easy to maintain.
Signed-off-by: Tang Chen
---
arch/x86/kernel/setup.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git
o after this patch, this macro is removed, and pr_err() is used
like this:
for (...) {
...
if (...) {
pr_err("ACPI OVERRIDE: ..");
continue;
}
...
}
Sig
These three trivial patches are from patch-set "Arrange hotpluggable memory as
ZONE_MOVABLE."
And they have been acked and reviewed by many people.
Hope they can be merged first. And the rest patches are coming soon.
Tang Chen (3):
acpi: Print Hot-Pluggable Field in SRAT.
earlyc
ust the new comments.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
Reviewed-by: Tejun Heo
---
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/
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
nwards, if this_end < size,
we can break because the rest memory will all under size. It won't satisfy
us ang more.
Furthermore, we don't need to check "if (this_end < size)" actually. Without
this confusing check, we only waste some loops. So this patch removes the
check.
Signed-off-
On 08/15/2013 11:27 AM, Tejun Heo wrote:
Hello, Tang.
On Thu, Aug 15, 2013 at 11:23:19AM +0800, Tang Chen wrote:
Furthermore, we don't need to check "if (this_end< size)" actually. Without
this confusing check, we only waste some loops. So this patch removes the
check.
Signed
On 08/15/2013 05:54 AM, Naoya Horiguchi wrote:
> On Thu, Aug 08, 2013 at 06:16:17PM +0800, Tang Chen wrote:
>> --- a/mm/memblock.c
>> +++ b/mm/memblock.c
> ...
>> @@ -719,6 +723,10 @@ void __init_memblock __next_free_mem_range_rev(u64
>> *idx, int nid,
>>
Hi Wanpeng
On 08/28/2013 04:03 PM, Wanpeng Li wrote:
Hi Tang,
..
[About this patch-set]
So this patch-set does the following:
1. Make memblock be able to allocate memory from low address to high address.
I want to know if there is fragmentation degree difference here?
Before this
On 08/28/2013 11:19 PM, Tejun Heo wrote:
..
Doesn't apply to -master, -next or tip. Again, can you please include
which tree and git commit the patches are against in the patch
description? How is one supposed to know on top of which tree you're
working? It is in your benefit to make
Hi Wanpeng,
On 08/29/2013 09:36 AM, Wanpeng Li wrote:
..
Hi tj,
Sorry for the trouble. Please refer to the following branch:
https://github.com/imtangchen/linux.git movablenode-boot-option
Could you post your testcase? So I can test it on x86 and powerpc machines.
Sure. Some simple
Hi guys,
Any comment to this patch-set ? And shall agree on using this solution
suggested by Tejun ?
Thanks.
On 08/27/2013 05:37 PM, Tang Chen wrote:
This patch-set is based on tj's suggestion, and not fully tested.
Just for review and discussion.
[Problem]
The current Linux cannot
We can also
update min_pfn_mapped in add_pfn_range_mapped().
Signed-off-by: Tang Chen
---
arch/x86/mm/init.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 5b2eaca..a97749f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init
This patch-set does the following:
1. Kill max_low_pfn_mapped as it is useless.
This patch is from Yinghai.
2. Update min_pfn_mapped and max_pfn_mapped together in add_pfn_range_mapped().
3. Move definition of max_pfn_mapped tp init.c together with min_pfn_mapped.
Tang Chen (2):
x86, mm
min_pfn_mapped is defined in init.c, we can also define max_pfn_mapped here.
Signed-off-by: Tang Chen
---
arch/x86/kernel/setup.c |8
arch/x86/mm/init.c |9 +
2 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel
change to use
1U<<(32_PAGE_SHIFT) with it, aka under 4G.
-v2: Leave alone max_low_pfn_mapped in i915 code according to tj.
Suggested-by: H. Peter Anvin
Signed-off-by: Yinghai Lu
Signed-off-by: Tang Chen
Cc: "Rafael J. Wysocki"
Cc: Jacob Shin
Cc: Pekka Enberg
Cc: linux-a...@
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 done
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
;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 acpi_invalid_table() to check if a tab
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: Zhang Yan
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
ctionality. 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 Yanfei
---
Documentat
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 files
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/acpi/osl.c | 85
k 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
--- a/mm/memblock.c
+++
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.h |1 +
mm/membl
.
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_hotplug.c
-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
+++ b/arch/x86
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
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 ++---
drivers/acpi
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
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
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: Tang
}
...
}
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
tpluggable 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
Reviewed-by: Zh
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
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
of 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
tpluggable 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
Reviewed-by: Zh
ctionality. 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 Yanfei
---
Documentat
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
-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
--- a/arch/x86/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 files
t;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 INVALID_TABLE().
acpi: Introduce acpi_verif
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
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.h |1 +
mm/membl
.
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_hotplug.c
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/acpi/osl.c | 85
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
. This 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
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
into two steps, and introduce two new
functions:
acpi_tb_install_table_firmware() and acpi_tb_install_table_override(),
which will be used later in Linux.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/tbutils.c | 118 +++-
1 files changed, 103 insertion
in acpi_table_init().
Since acpi_table_init() is also used in ia64, we keep it works as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/tables.c |5 -
include/acpi/acpixf.h |4
2 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/tables.c
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
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
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
block from allocating hotpluggable memory for the kernel.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
arch/x86/kernel/acpi/boot.c | 30 +-
arch/x86/kernel/setup.c |8 +++-
include/linux/acpi.h|1 +
3 files changed, 25 inserti
o after this patch, this macro should be used like this:
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
(). This will keep acpi_initialize_tables()
works as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/actables.h |2 ++
drivers/acpi/acpica/tbxface.c |9 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/acpica
k 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
--- a/mm/memblock.c
+++
in acpi_boot_table_init() in x86.
This patch make check_multiple_madt() global, and rename it to
acpi_check_multiple_madt() because all interfaces provided by
drivers/acpi/tables.c begins with "acpi_".
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/tables.c |4 ++-
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: Zhang Yan
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
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
(). This will keep acpi_initialize_tables()
works as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/acpica/actables.h |2 ++
drivers/acpi/acpica/tbxface.c |9 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/acpica
have to split all the following functions:
ACPICA:
acpi_tb_install_table()
acpi_tb_parse_root_table()
acpi_initialize_tables()
Linux acpi:
acpi_table_init()
acpi_boot_table_init()
Since ACPICA code is not just used by the Linux, so we should keep the ACPICA
side interfaces unmodified, and in
of 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
introduce new functions used in Linux.
This patch split acpi_tb_install_table() into two steps, and introduce two new
functions:
acpi_tb_install_table_firmware() and acpi_tb_install_table_override(),
which will be used later in Linux.
Signed-off-by: Tang Chen
Reviewed-by: Zhan
o after this patch, this macro should be used like this:
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
This patch-set does some trivial fix and improving in ACPI code
for memory hotplug.
Patch 1,3,4 have been acked.
Tang Chen (4):
acpi: Print Hot-Pluggable Field in SRAT.
earlycpio.c: Fix the confusing comment of find_cpio_data().
acpi: Remove "continue" in macro INVALID_TABLE
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
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/osl.c
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
s in
initrd,
|and store them in acpi_tables_addr array.
*/
|..
|->acpi_boot_table_init() /* Check acpi_tables_addr, if any table
needs to
be overrided, override it. */
Tang Chen (5):
x86, acp
block from allocating hotpluggable memory for the kernel.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
arch/x86/kernel/acpi/boot.c | 30 +-
arch/x86/kernel/setup.c |8 +++-
include/linux/acpi.h|1 +
3 files changed, 25 inserti
in acpi_table_init().
Since acpi_table_init() is also used in ia64, we keep it works as before.
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/tables.c |5 -
include/acpi/acpixf.h |4
2 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi
in acpi_boot_table_init() in x86.
This patch make check_multiple_madt() global, and rename it to
acpi_check_multiple_madt() because all interfaces provided by
drivers/acpi/tables.c begins with "acpi_".
Signed-off-by: Tang Chen
Reviewed-by: Zhang Yanfei
---
drivers/acpi/tables.c |4 ++-
. This 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
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
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/acpi/osl.c | 85
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
.
3. Parse all memory affinities in SRAT, and find all hotpluggable memory.
In later patches, we will improve memblock to mark and skip hotpluggable
memory when allocating memory.
Tang Chen (4):
x86: Make get_ramdisk_{image|size}() global.
x86, acpica, acpi: Try to find if SRAT is overrided e
.
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_hotplug.c
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: Zhang Yan
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
tpluggable 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
Reviewed-by: Zh
k 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
--- a/mm/memblock.c
+++
ctionality. 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 Yanfei
---
Documentat
-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
--- a/arch/x86/mm
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.h |1 +
mm/membl
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 | 42 ++
1 files
llow users to enable/disable this
functionality.
Tang Chen (6):
x86, numa, mem_hotplug: Skip all the regions the kernel resides in.
memblock, numa: Introduce flag into memblock.
memblock, mem_hotplug: Introduce MEMBLOCK_HOTPLUG flag to mark
hotpluggable regions.
memblock, mem_hot
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