Hi.
On Wed, Nov 29, 2023 at 01:33:37PM +, Alexandru Elisei wrote:
> Hi,
>
> On Wed, Nov 29, 2023 at 06:10:40PM +0900, Hyesoo Yu wrote:
> > On Sun, Nov 19, 2023 at 04:57:10PM +, Alexandru Elisei wrote:
> > > [..]
> > > +static int order_to_num_blocks(int o
Hi~
On Thu, Nov 30, 2023 at 12:00:11PM +, Alexandru Elisei wrote:
> Hi,
>
> On Wed, Nov 29, 2023 at 05:57:44PM +0900, Hyesoo Yu wrote:
> > On Sun, Nov 19, 2023 at 04:57:09PM +, Alexandru Elisei wrote:
> > > alloc_contig_range() requires that the requested pages ar
Hi,
I'm sorry for the late response, I was on vacation.
On Sun, Dec 03, 2023 at 12:14:30PM +, Alexandru Elisei wrote:
> Hi,
>
> On Wed, Nov 29, 2023 at 05:44:24PM +0900, Hyesoo Yu wrote:
> > Hello.
> >
> > On Sun, Nov 19, 2023 at 04:57:05PM +, Alexand
On Sun, Nov 19, 2023 at 04:57:13PM +, Alexandru Elisei wrote:
> To enable tagging on a memory range, userspace can use mprotect() with the
> PROT_MTE access flag. Pages already mapped in the VMA don't have the
> associated tag storage block reserved, so mark the PTEs as
> PAGE_FAULT_ON_ACCESS t
On Sun, Nov 19, 2023 at 04:57:10PM +, Alexandru Elisei wrote:
> Reserve tag storage for a tagged page by migrating the contents of the tag
> storage (if in use for data) and removing the tag storage pages from the
> page allocator by calling alloc_contig_range().
>
> When all the associated ta
On Sun, Nov 19, 2023 at 04:57:09PM +, Alexandru Elisei wrote:
> alloc_contig_range() requires that the requested pages are in the same
> zone. Check that this is indeed the case before initializing the tag
> storage blocks.
>
> Signed-off-by: Alexandru Elisei
> ---
> arch/arm64/kernel/mte_ta
Hello.
On Sun, Nov 19, 2023 at 04:57:05PM +, Alexandru Elisei wrote:
> Allow the kernel to get the size and location of the MTE tag storage
> regions from the DTB. This memory is marked as reserved for now.
>
> The DTB node for the tag storage region is defined as:
>
> tags0: tag-sto
On Wed, Oct 25, 2023 at 09:47:36AM +0100, Alexandru Elisei wrote:
> Hi,
>
> On Wed, Oct 25, 2023 at 11:59:32AM +0900, Hyesoo Yu wrote:
> > On Wed, Sep 13, 2023 at 04:29:25PM +0100, Catalin Marinas wrote:
> > > On Mon, Sep 11, 2023 at 02:29:03PM +0200, David Hildenbrand wr
On Wed, Sep 13, 2023 at 04:29:25PM +0100, Catalin Marinas wrote:
> On Mon, Sep 11, 2023 at 02:29:03PM +0200, David Hildenbrand wrote:
> > On 11.09.23 13:52, Catalin Marinas wrote:
> > > On Wed, Sep 06, 2023 at 12:23:21PM +0100, Alexandru Elisei wrote:
> > > > On Thu, Aug 24, 2023 at 04:24:30PM +010
On Mon, Oct 16, 2023 at 01:40:39PM +0100, Alexandru Elisei wrote:
> Hello,
>
> On Thu, Oct 12, 2023 at 10:28:24AM +0900, Hyesoo Yu wrote:
> > On Wed, Aug 23, 2023 at 02:13:17PM +0100, Alexandru Elisei wrote:
> > > Some architectures implement hardware memory col
disabling tag storage");
> + return 0;
> + }
> +
Hi.
Is there no plan to enable HW KASAN in the current design ?
I wonder if dynamic MTE is only used for user ?
Thanks,
Hyesoo Yu.
> for (i = 0; i < num_tag_regions; i++) {
> tag
+ * Allocate data pages from MIGRATE_METADATA only if the regular
> + * allocation path fails to increase the chance that the
> + * metadata page is available when the associated data page
> +
being in the pcp list
because metadata pages is bypassed when freeing pages.
The allocation performance of most movable pages is likely to decrease
if only the request with ALLOC_FROM_METADATA could be allocated.
How about not including metadata pages in the pcp list at all ?
On Tue, Jan 19, 2021 at 12:36:40PM -0800, Minchan Kim wrote:
> On Tue, Jan 19, 2021 at 10:29:29AM -0800, John Stultz wrote:
> > On Tue, Jan 12, 2021 at 5:22 PM Minchan Kim wrote:
> > >
> > > From: Hyesoo Yu
> > >
> > > This patch supports chunk heap t
On Wed, Nov 18, 2020 at 07:19:07PM -0800, John Stultz wrote:
> On Wed, Nov 18, 2020 at 5:22 PM Hyesoo Yu wrote:
> >
> > On Tue, Nov 17, 2020 at 07:00:54PM -0800, John Stultz wrote:
> > > So I suspect Rob will push back on this as he has for other dt
> > > bindin
Hello, Hillf danton.
On Wed, Nov 18, 2020 at 05:00:13PM +0800, Hillf Danton wrote:
> On Tue, 17 Nov 2020 10:19:34 -0800 Minchan Kim wrote:
> +
> +static int chunk_heap_mmap(struct dma_buf *dmabuf, struct vm_area_struct
> *vma)
> +{
> + struct chunk_heap_buffer *buffer = dmabuf->priv;
> +
On Tue, Nov 17, 2020 at 07:00:54PM -0800, John Stultz wrote:
> On Tue, Nov 17, 2020 at 10:19 AM Minchan Kim wrote:
> >
> > From: Hyesoo Yu
> >
> > Document devicetree binding for chunk heap on dma heap framework
> >
> > Signed-off-by: Hy
Hi,
On Tue, Aug 18, 2020 at 10:48:12AM -0600, Rob Herring wrote:
> On Tue, 18 Aug 2020 17:04:15 +0900, Hyesoo Yu wrote:
> > Document devicetree binding for chunk heap on dma heap framework
> >
> > Signed-off-by: Hyesoo Yu
> > ---
> > .../devicetree/binding
This patch adds support for a chunk heap that allows for buffers
that are made up of a list of fixed size chunks taken from a CMA.
Chunk sizes are configuratd when the heaps are created.
Signed-off-by: Hyesoo Yu
---
drivers/dma-buf/heaps/Kconfig | 9 ++
drivers/dma-buf/heaps/Makefile
Document devicetree binding for chunk heap on dma heap framework
Signed-off-by: Hyesoo Yu
---
.../devicetree/bindings/dma-buf/chunk_heap.yaml| 46 ++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma-buf/chunk_heap.yaml
diff
ister chunk heap
Hyesoo Yu (3):
dma-buf: add missing EXPORT_SYMBOL_GPL() for dma heaps
dma-buf: heaps: add chunk heap to dmabuf heaps
dma-heap: Devicetree binding for chunk heap
.../devicetree/bindings/dma-buf/chunk_heap.yaml| 46 +
drivers/dma-buf/dma-heap.c
The interface of dma heap is used from kernel module to
register dma heaps, otherwize we will get compile error.
Signed-off-by: Hyesoo Yu
---
drivers/dma-buf/dma-heap.c | 2 ++
drivers/dma-buf/heaps/heap-helpers.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/dma-buf
d function
implemented from exporter.
That helps to show exporter detail information.
For example, ION may show the buffer flag, heap name,
or the name of process to request allocation.
Change-Id: I670f04dda4a0870081e1b0fd96b9185b48b9dd15
Signed-off-by: Hyesoo Yu
---
drivers/dma-buf/dma-
d function
implemented from exporter.
That helps to show exporter detail information.
For example, ION may show the buffer flag, heap name,
or the name of process to request allocation.
Change-Id: I670f04dda4a0870081e1b0fd96b9185b48b9dd15
Signed-off-by: Hyesoo Yu
---
drivers/dma-buf/dma-
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