Hello, all.
I'd like to discuss memory sharing issue by application on v4l2 based
device driver with system mmu and get some advices about that.
Now I am working on Samsung SoC C210 platform and this platform has some
multimedia devices with system mmu such as fimc, and mfc also we have
,
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of InKi Dae
Sent: Thursday, January 06, 2011 10:25 PM
To: linux-media@vger.kernel.org
Subject: Memory sharing issue by application on V4L2 based device driver
with
system mmu
2011/3/14 Russell King - ARM Linux li...@arm.linux.org.uk:
On Mon, Mar 14, 2011 at 09:37:51PM +0900, KyongHo Cho wrote:
I have also noticed that dma_map_single/page/sg() can map physical
memory into an arbitrary device address region.
But it is not enough solution for various kinds of IOMMUs.
overlay array index to
avoid overlapping with other overlay.
sighed-off-by: InKi Dae. inki@samsung.com
---
diff --git a/drivers/media/video/omap/omap_vout.c
b/drivers/media/video/omap/omap_vout.c
index 9b4a0d7..051298a 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video
...@ti.com:
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Shah, Hardik
Sent: Thursday, April 30, 2009 11:51 AM
To: InKi Dae
Cc: tomi.valkei...@nokia.com; linux-media@vger.kernel.org; linux-
o...@vger.kernel.org; Jadav
2011/12/2 Sumit Semwal sumit.sem...@ti.com:
This is the first step in defining a dma buffer sharing mechanism.
A new buffer object dma_buf is added, with operations and API to allow easy
sharing of this buffer object across devices.
The framework allows:
- different devices to 'attach'
2012/1/9 Daniel Vetter dan...@ffwll.ch:
On Mon, Jan 09, 2012 at 03:20:48PM +0900, InKi Dae wrote:
I has test dmabuf based drm gem module for exynos and I found one problem.
you can refer to this test repository:
http://git.infradead.org/users/kmpark/linux-samsung/shortlog/refs/heads/exynos-drm
2012/1/9 Daniel Vetter dan...@ffwll.ch:
On Mon, Jan 09, 2012 at 07:10:25PM +0900, InKi Dae wrote:
2012/1/9 Daniel Vetter dan...@ffwll.ch:
On Mon, Jan 09, 2012 at 03:20:48PM +0900, InKi Dae wrote:
I has test dmabuf based drm gem module for exynos and I found one problem.
you can refer
2012/1/10 Rob Clark r...@ti.com:
On Mon, Jan 9, 2012 at 4:10 AM, InKi Dae daei...@gmail.com wrote:
note : in case of sharing a buffer between v4l2 and drm driver, the
memory info would be copied vb2_xx_buf to xx_gem or xx_gem to
vb2_xx_buf through sg table. in this case, only memory info
2012/1/10 Semwal, Sumit sumit.sem...@ti.com:
On Tue, Jan 10, 2012 at 7:44 AM, Rob Clark r...@ti.com wrote:
On Mon, Jan 9, 2012 at 7:34 PM, InKi Dae daei...@gmail.com wrote:
2012/1/10 Rob Clark r...@ti.com:
at least with no IOMMU, the memory information(containing physical
memory address
2012/1/10 InKi Dae daei...@gmail.com:
2012/1/10 Semwal, Sumit sumit.sem...@ti.com:
On Tue, Jan 10, 2012 at 7:44 AM, Rob Clark r...@ti.com wrote:
On Mon, Jan 9, 2012 at 7:34 PM, InKi Dae daei...@gmail.com wrote:
2012/1/10 Rob Clark r...@ti.com:
at least with no IOMMU, the memory information
2012/1/10 Rob Clark r...@ti.com:
On Mon, Jan 9, 2012 at 7:34 PM, InKi Dae daei...@gmail.com wrote:
2012/1/10 Rob Clark r...@ti.com:
On Mon, Jan 9, 2012 at 4:10 AM, InKi Dae daei...@gmail.com wrote:
note : in case of sharing a buffer between v4l2 and drm driver, the
memory info would be copied
Sajjan vikas.saj...@linaro.org
---
Changes since v2:
- moved clk_prepare_enable() and clk_disable_unprepare() from
fimd_probe() to fimd_clock() as suggested by Inki Dae
inki@samsung.com
Changes since v1:
- added error checking for clk_prepare_enable
-Original Message-
From: Maarten Lankhorst [mailto:maarten.lankho...@canonical.com]
Sent: Monday, May 13, 2013 5:01 PM
To: Inki Dae
Cc: Rob Clark; Daniel Vetter; DRI mailing list; linux-arm-
ker...@lists.infradead.org; linux-media@vger.kernel.org; linux-fbdev;
Kyungmin Park
-Original Message-
From: Maarten Lankhorst [mailto:maarten.lankho...@canonical.com]
Sent: Monday, May 13, 2013 6:52 PM
To: Inki Dae
Cc: 'Rob Clark'; 'Daniel Vetter'; 'DRI mailing list'; linux-arm-
ker...@lists.infradead.org; linux-media@vger.kernel.org; 'linux-fbdev';
'Kyungmin
-Original Message-
From: linux-fbdev-ow...@vger.kernel.org [mailto:linux-fbdev-
ow...@vger.kernel.org] On Behalf Of Maarten Lankhorst
Sent: Monday, May 13, 2013 8:41 PM
To: Inki Dae
Cc: 'Rob Clark'; 'Daniel Vetter'; 'DRI mailing list'; linux-arm-
ker...@lists.infradead.org; linux
-Original Message-
From: Rob Clark [mailto:robdcl...@gmail.com]
Sent: Tuesday, May 14, 2013 2:58 AM
To: Inki Dae
Cc: linux-fbdev; DRI mailing list; Kyungmin Park; myungjoo.ham; YoungJun
Cho; linux-arm-ker...@lists.infradead.org; linux-media@vger.kernel.org
Subject: Re: Introduce
-Original Message-
From: Rob Clark [mailto:robdcl...@gmail.com]
Sent: Tuesday, May 14, 2013 10:39 PM
To: Inki Dae
Cc: linux-fbdev; DRI mailing list; Kyungmin Park; myungjoo.ham; YoungJun
Cho; linux-arm-ker...@lists.infradead.org; linux-media@vger.kernel.org
Subject: Re: Introduce
-Original Message-
From: Daniel Vetter [mailto:daniel.vet...@ffwll.ch] On Behalf Of Daniel
Vetter
Sent: Tuesday, May 21, 2013 6:31 AM
To: Inki Dae
Cc: Rob Clark; linux-fbdev; DRI mailing list; Kyungmin Park; myungjoo.ham;
YoungJun Cho; linux-arm-ker...@lists.infradead.org; linux
-Original Message-
From: Daniel Vetter [mailto:daniel.vet...@ffwll.ch] On Behalf Of Daniel
Vetter
Sent: Tuesday, May 21, 2013 4:45 PM
To: Inki Dae
Cc: 'Daniel Vetter'; 'Rob Clark'; 'linux-fbdev'; 'DRI mailing list';
'Kyungmin Park'; 'myungjoo.ham'; 'YoungJun Cho'; linux-arm-
ker
-Original Message-
From: daniel.vet...@ffwll.ch [mailto:daniel.vet...@ffwll.ch] On Behalf Of
Daniel Vetter
Sent: Thursday, May 23, 2013 8:56 PM
To: Inki Dae
Cc: Rob Clark; linux-fbdev; DRI mailing list; Kyungmin Park; myungjoo.ham;
YoungJun Cho; linux-arm-ker...@lists.infradead.org
in advance before RFC posting.
Thanks,
Inki Dae
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-Original Message-
From: Maarten Lankhorst [mailto:maarten.lankho...@canonical.com]
Sent: Tuesday, May 28, 2013 12:23 AM
To: Inki Dae
Cc: 'Daniel Vetter'; 'Rob Clark'; 'linux-fbdev'; 'YoungJun Cho'; 'Kyungmin
Park'; 'myungjoo.ham'; 'DRI mailing list'; linux-arm-
ker
-Original Message-
From: linux-fbdev-ow...@vger.kernel.org [mailto:linux-fbdev-
ow...@vger.kernel.org] On Behalf Of Rob Clark
Sent: Tuesday, May 28, 2013 12:48 AM
To: Inki Dae
Cc: Maarten Lankhorst; Daniel Vetter; linux-fbdev; YoungJun Cho; Kyungmin
Park; myungjoo.ham; DRI mailing
-Original Message-
From: daniel.vet...@ffwll.ch [mailto:daniel.vet...@ffwll.ch] On Behalf Of
Daniel Vetter
Sent: Tuesday, May 28, 2013 1:02 AM
To: Rob Clark
Cc: Inki Dae; Maarten Lankhorst; linux-fbdev; YoungJun Cho; Kyungmin Park;
myungjoo.ham; DRI mailing list; linux-arm-ker
28, 2013 7:33 PM
To: Inki Dae
Cc: 'Rob Clark'; 'Maarten Lankhorst'; 'Daniel Vetter'; 'linux-fbdev';
'YoungJun Cho'; 'Kyungmin Park'; 'myungjoo.ham'; 'DRI mailing list';
linux-arm-ker...@lists.infradead.org; linux-media@vger.kernel.org
Subject: Re: Introduce a new helper framework for buffer
-Original Message-
From: linux-fbdev-ow...@vger.kernel.org [mailto:linux-fbdev-
ow...@vger.kernel.org] On Behalf Of Rob Clark
Sent: Tuesday, May 28, 2013 10:49 PM
To: Inki Dae
Cc: Maarten Lankhorst; Daniel Vetter; linux-fbdev; YoungJun Cho; Kyungmin
Park; myungjoo.ham; DRI mailing
-Original Message-
From: daniel.vet...@ffwll.ch [mailto:daniel.vet...@ffwll.ch] On Behalf Of
Daniel Vetter
Sent: Wednesday, May 29, 2013 1:50 AM
To: Inki Dae
Cc: Rob Clark; Maarten Lankhorst; linux-fbdev; YoungJun Cho; Kyungmin
Park;
myungjoo.ham; DRI mailing list; linux-arm-ker
all things is just quick implementation for buffer synchronization
so this should be more cleaned up and there might be my missing point.
Please give me your advices and opinions.
Thanks,
Inki Dae
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/
[2] http://lwn.net/Articles/532616/
[3] https://patchwork-mail1.kernel.org/patch/2625321/
Signed-off-by: Inki Dae inki@samsung.com
---
Documentation/dma-buf-sync.txt | 246 ++
drivers/base/Kconfig |7 +
drivers/base/Makefile |1 +
drivers/base
+static void dmabuf_sync_timeout_worker(struct work_struct *work)
+{
+ struct dmabuf_sync *sync = container_of(work, struct dmabuf_sync,
work);
+ struct dmabuf_sync_object *sobj;
+
+ mutex_lock(sync-lock);
+
+ list_for_each_entry(sobj, sync-syncs, head) {
+
Hi Russell,
-Original Message-
From: Russell King - ARM Linux [mailto:li...@arm.linux.org.uk]
Sent: Friday, June 14, 2013 2:26 AM
To: Inki Dae
Cc: maarten.lankho...@canonical.com; dan...@ffwll.ch; robdcl...@gmail.com;
linux-fb...@vger.kernel.org; dri-de...@lists.freedesktop.org
the dma buf exporter
should implement dmabuf-ops-begin_cpu_access/end_cpu_access callbacks.
[1] http://lwn.net/Articles/470339/
[2] http://lwn.net/Articles/532616/
[3] https://patchwork-mail1.kernel.org/patch/2625321/
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p
-Original Message-
From: Maarten Lankhorst [mailto:maarten.lankho...@canonical.com]
Sent: Monday, June 17, 2013 8:35 PM
To: Inki Dae
Cc: dri-de...@lists.freedesktop.org; linux-fb...@vger.kernel.org; linux-
arm-ker...@lists.infradead.org; linux-media@vger.kernel.org;
dan
-Original Message-
From: Russell King - ARM Linux [mailto:li...@arm.linux.org.uk]
Sent: Tuesday, June 18, 2013 3:21 AM
To: Inki Dae
Cc: Maarten Lankhorst; linux-fbdev; Kyungmin Park; DRI mailing list; Rob
Clark; myungjoo.ham; YoungJun Cho; Daniel Vetter; linux-arm-
ker
-Original Message-
From: Russell King - ARM Linux [mailto:li...@arm.linux.org.uk]
Sent: Tuesday, June 18, 2013 5:43 PM
To: Inki Dae
Cc: 'Maarten Lankhorst'; 'linux-fbdev'; 'Kyungmin Park'; 'DRI mailing
list'; 'Rob Clark'; 'myungjoo.ham'; 'YoungJun Cho'; 'Daniel Vetter';
linux-arm
-Original Message-
From: Lucas Stach [mailto:l.st...@pengutronix.de]
Sent: Tuesday, June 18, 2013 6:47 PM
To: Inki Dae
Cc: 'Russell King - ARM Linux'; 'linux-fbdev'; 'Kyungmin Park'; 'DRI
mailing list'; 'myungjoo.ham'; 'YoungJun Cho'; linux-arm-
ker...@lists.infradead.org; linux
/Articles/470339/
[2] http://lwn.net/Articles/532616/
[3] https://patchwork.kernel.org/patch/2625361/
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 199
drivers/base/Kconfig |7
-Original Message-
From: Lucas Stach [mailto:l.st...@pengutronix.de]
Sent: Wednesday, June 19, 2013 7:22 PM
To: Inki Dae
Cc: 'Russell King - ARM Linux'; 'linux-fbdev'; 'Kyungmin Park'; 'DRI
mailing list'; 'myungjoo.ham'; 'YoungJun Cho'; linux-arm-
ker...@lists.infradead.org; linux
-Original Message-
From: Lucas Stach [mailto:l.st...@pengutronix.de]
Sent: Thursday, June 20, 2013 4:47 PM
To: Inki Dae
Cc: 'Russell King - ARM Linux'; 'Inki Dae'; 'linux-fbdev'; 'YoungJun Cho';
'Kyungmin Park'; 'myungjoo.ham'; 'DRI mailing list'; linux-arm-
ker
-Original Message-
From: Lucas Stach [mailto:l.st...@pengutronix.de]
Sent: Thursday, June 20, 2013 7:11 PM
To: Inki Dae
Cc: 'Russell King - ARM Linux'; 'Inki Dae'; 'linux-fbdev'; 'YoungJun Cho';
'Kyungmin Park'; 'myungjoo.ham'; 'DRI mailing list'; linux-arm-
ker
Hi,
+static int dma_buf_mmap_internal(struct file *file, struct vm_area_struct
*vma)
+{
+ struct dma_buf *dmabuf;
+
+ if (!is_dma_buf_file(file))
+ return -EINVAL;
+
+ dmabuf = file-private_data;
+
+ /* check for overflowing the buffer's size */
2012/4/25, Daniel Vetter dan...@ffwll.ch:
On Wed, Apr 25, 2012 at 01:37:51AM +0900, InKi Dae wrote:
Hi,
+static int dma_buf_mmap_internal(struct file *file, struct
vm_area_struct *vma)
+{
+ struct dma_buf *dmabuf;
+
+ if (!is_dma_buf_file(file
|
|
|-- Request page flip (deferred)
| - vsync signal
|-- Displayed on screen
|
|
|
| - vsync signal
Thanks,
Inki Dae
References:
[1] http://lwn.net/Articles
will be returned at once.
References:
[1] http://lwn.net/Articles/470339/
[2] https://patchwork.kernel.org/patch/2625361/
[3] http://linux.die.net/man/2/fcntl
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 286
intefaces for
the DMA device driver.
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/base/dma-buf.c | 81
1 file changed, 81 insertions(+)
diff --git a/drivers/base/dma-buf.c b
to avoid such thing.
Thanks,
Inki Dae
--
Regards,
Laurent Pinchart
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in fh-entries.
- release each seqno_fence_dmabuf object in seqno_fence's
sync_buf_list and call dma_buf_put() to put the reference count to
dmabuf.
Now the fence-helper framework is just WIP yet so there may be my
missing points. If you are ok, I'd like to post it as RFC.
Thanks,
Inki Dae
2013/1/16 Maarten Lankhorst maarten.lankho...@canonical.com:
Op 16-01-13 07:28, Inki Dae schreef:
2013/1/15 Maarten Lankhorst m.b.lankho...@gmail.com:
This type of fence can be used with hardware synchronization for simple
hardware that can block execution until the condition
(dma_buf[offset
2013/1/25 Sachin Kamat sachin.ka...@linaro.org:
From: Ajay Kumar ajaykumar...@samsung.com
This patch adds device tree match table for Exynos G2D controller.
Signed-off-by: Ajay Kumar ajaykumar...@samsung.com
Signed-off-by: Sachin Kamat sachin.ka...@linaro.org
---
-Original Message-
From: Sylwester Nawrocki [mailto:sylvester.nawro...@gmail.com]
Sent: Thursday, January 31, 2013 5:51 AM
To: Inki Dae
Cc: Sachin Kamat; linux-media@vger.kernel.org; dri-
de...@lists.freedesktop.org; devicetree-disc...@lists.ozlabs.org;
patc...@linaro.org; s.nawro
with FENCE_FLAG_ACCESS_READ_BIT
so that other consumers could ignore the fence-wait to any read
operations.
Thanks,
Inki Dae
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2013/1/31 Daniel Vetter dan...@ffwll.ch:
On Thu, Jan 31, 2013 at 06:32:15PM +0900, Inki Dae wrote:
Hi,
below is my opinion.
+struct fence;
+struct fence_ops;
+struct fence_cb;
+
+/**
+ * struct fence - software synchronization primitive
+ * @refcount: refcount for this fence
Hi Kukjin,
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Kukjin Kim
Sent: Friday, February 01, 2013 9:15 AM
To: 'Sylwester Nawrocki'; 'Inki Dae'
Cc: 'Sachin Kamat'; linux-media@vger.kernel.org; dri-
de
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Sachin Kamat
Sent: Friday, February 01, 2013 8:13 PM
To: Sylwester Nawrocki
Cc: Inki Dae; Kukjin Kim; Sylwester Nawrocki; linux-media@vger.kernel.org;
dri-de
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Sachin Kamat
Sent: Friday, February 01, 2013 8:40 PM
To: Inki Dae
Cc: Sylwester Nawrocki; Kukjin Kim; Sylwester Nawrocki; linux-
me...@vger.kernel.org; dri-de
2013. 2. 1. 오후 8:52 Inki Dae inki@samsung.com 작성:
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Sachin Kamat
Sent: Friday, February 01, 2013 8:40 PM
To: Inki Dae
Cc: Sylwester Nawrocki; Kukjin Kim
comments for them?
Thanks,
Inki Dae
+ fence_get(fence);
+
+ mutex_unreserve_unlock(bo-lock);
+ }
+ reservation_ticket_fini(ticket);
+}
+EXPORT_SYMBOL(ticket_commit);
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2013/2/4 Sachin Kamat sachin.ka...@linaro.org:
On 1 February 2013 18:28, Inki Dae daei...@gmail.com wrote:
2013. 2. 1. 오후 8:52 Inki Dae inki@samsung.com 작성:
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf
and drm. So is .../bindings/gpu proper place?
Thanks,
Inki Dae
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_g2d_match);
+#endif
+
struct platform_driver g2d_driver = {
.probe = g2d_probe,
.remove = g2d_remove,
@@ -1247,5 +1256,6 @@ struct platform_driver
-Original Message-
From: Sachin Kamat [mailto:sachin.ka...@linaro.org]
Sent: Wednesday, February 06, 2013 5:03 PM
To: Inki Dae
Cc: linux-media@vger.kernel.org; dri-de...@lists.freedesktop.org;
devicetree-disc...@lists.ozlabs.org; k.deb...@samsung.com;
s.nawro...@samsung.com; kgene
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Sylwester Nawrocki
Sent: Wednesday, February 06, 2013 8:24 PM
To: Inki Dae
Cc: 'Sachin Kamat'; linux-media@vger.kernel.org; dri-
de...@lists.freedesktop.org
Applied and will go to -next.
And please post the document(in
Documentation/devicetree/bindings/gpu/) for it later.
Thanks,
Inki Dae
2013/2/6 Sachin Kamat sachin.ka...@linaro.org:
From: Ajay Kumar ajaykumar...@samsung.com
This patch adds device tree match table for Exynos G2D controller
2013/2/12 Sylwester Nawrocki s.nawro...@samsung.com:
On 02/12/2013 02:17 PM, Inki Dae wrote:
Applied and will go to -next.
And please post the document(in
Documentation/devicetree/bindings/gpu/) for it later.
There is already some old patch applied in the devicetree/next tree:
http
2013/2/6 Vikas Sajjan vikas.saj...@linaro.org:
Add support for parsing the display-timing node using video helper
function.
The DT node parsing and pinctrl selection is done only if 'dev.of_node'
exists and the NON-DT logic is still maintained under the 'else' part.
Signed-off-by: Leela
+ with return value: %d\n, ret);
+ return ret;
+ }
+
+ pctrl = devm_pinctrl_get_select_default(dev);
Why does it need pinctrl? and even though needed, I think this should be
separated into another one.
Thanks,
Inki Dae
be selected.
Thanks,
Inki Dae
+ if (ret) {
+ DRM_ERROR(failed: of_get_fb_videomode() : %d\n,
ret);
+ return ret;
+ }
+ } else {
+ pdata = pdev-dev.platform_data;
+ if (!pdata
Already merged. :)
-Original Message-
From: Vikas Sajjan [mailto:vikas.saj...@linaro.org]
Sent: Thursday, March 07, 2013 4:09 PM
To: InKi Dae
Cc: dri-de...@lists.freedesktop.org; linux-media@vger.kernel.org;
kgene@samsung.com; Joonyoung Shim; sunil joshi
Subject: Re: [PATCH
/Kconfig
@@ -25,6 +25,8 @@ config DRM_EXYNOS_DMABUF
config DRM_EXYNOS_FIMD
bool Exynos DRM FIMD
depends on DRM_EXYNOS !FB_S3C !ARCH_MULTIPLATFORM
Again, you missed 'OF' dependency. At least, let's have build testing surely
before posting :)
Thanks,
Inki Dae
+ select OF_VIDEOMODE
);
+ return ret;
+ }
+
Please remove the above two clk_prepare_enable function calls and use
them in fimd_clock() instead of clk_enable/disable(). When probed,
fimd clock will be enabled by runtime pm.
Thanks,
Inki Dae
ctx-vidcon0 = pdata-vidcon0;
ctx-vidcon1 = pdata-vidcon1
Hello Media guys,
This is dependent of exynos drm patch set to be merged to mainline so if
there is no problem then please, give me ack so that I can merge this patch
with exynos drm patch set.
Thanks,
Inki Dae
-Original Message-
From: RAHUL SHARMA [mailto:rahul.sha...@samsung.com
) and FIMC(Exynos SoC).
Thanks,
Inki Dae
drivers/video/Kconfig |1 +
drivers/video/Makefile |1 +
drivers/video/panel/Kconfig| 37 +++
drivers/video/panel/Makefile |5 +
drivers/video/panel/panel-dbi.c| 217 +++
drivers
mode way(same as cpu mode)? This panel
includes framebuffer internally and needs triggering from Display
controller to update a new frame on that internal framebuffer. I think
we also need this trigger interface.
Thanks,
Inki Dae
dummy panels there's really no such level, there's just one enable
correct some typo. Sorry for this.
2012/10/20 Inki Dae inki@samsung.com:
Hi Laurent. sorry for being late.
2012/8/17 Laurent Pinchart laurent.pinch...@ideasonboard.com:
Hi everybody,
While working on DT bindings for the Renesas Mobile SoC display controller
(a.k.a. LCDC) I quickly
2013/6/21 Lucas Stach l.st...@pengutronix.de:
Hi Inki,
please refrain from sending HTML Mails, it makes proper quoting without
messing up the layout everywhere pretty hard.
Sorry about that. I should have used text mode.
Am Freitag, den 21.06.2013, 20:01 +0900 schrieb Inki Dae
2013/6/25 Rob Clark robdcl...@gmail.com:
On Tue, Jun 25, 2013 at 5:09 AM, Inki Dae daei...@gmail.com wrote:
that
should be the role of kernel memory management which of course needs
synchronization btw A and B. But in no case this should be done using
dma-buf. dma-buf is for sharing content
2013/6/25 Jerome Glisse j.gli...@gmail.com:
On Tue, Jun 25, 2013 at 10:17 AM, Inki Dae daei...@gmail.com wrote:
2013/6/25 Rob Clark robdcl...@gmail.com:
On Tue, Jun 25, 2013 at 5:09 AM, Inki Dae daei...@gmail.com wrote:
that
should be the role of kernel memory management which of course needs
://lwn.net/Articles/470339/
[2] http://lwn.net/Articles/532616/
[3] https://patchwork.kernel.org/patch/2625361/
[4] http://linux.die.net/man/2/fcntl
Inki Dae (2):
dmabuf-sync: Introduce buffer synchronization framework
dma-buf: add lock callback for fcntl system call.
Documentation/dma-buf
This patch adds lock callback to dma buf file operations,
and this callback will be called by fcntl system call.
With this patch, fcntl system call can be used for buffer
synchronization between CPU and CPU, and CPU and DMA in user mode.
Signed-off-by: Inki Dae inki@samsung.com
Signed-off
/2625361/
[4] http://linux.die.net/man/2/fcntl
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 283 +
drivers/base/Kconfig |7 +
drivers/base/Makefile |1 +
drivers/base
/2625361/
[3] http://linux.die.net/man/2/fcntl
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 290 +
drivers/base/Kconfig |7 +
drivers/base/Makefile |1 +
drivers/base
This patch adds lock callback to dma buf file operations,
and this callback will be called by fcntl system call.
With this patch, fcntl system call can be used for buffer
synchronization between CPU and CPU, and CPU and DMA in user mode.
Signed-off-by: Inki Dae inki@samsung.com
Signed-off
://patchwork.kernel.org/patch/2625361/
[3] http://linux.die.net/man/2/fcntl
Inki Dae (2):
[RFC PATCH v5 1/2] dmabuf-sync: Introduce buffer synchronization framework
[RFC PATCH v1 2/2] dma-buf: add lock callback for fcntl system call
Documentation/dma-buf-sync.txt | 290 +
drivers/base/Kconfig
(fcntl and select system calls), and the dmabuf sync framework could meet it.
Thanks,
Inki Dae
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://linux.die.net/man/2/fcntl
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 285 +
drivers/base/Kconfig |7 +
drivers/base/Makefile |1 +
drivers/base/dma-buf.c
|-- Displayed on screen
|
|
|
| - vsync signal
Thanks,
Inki Dae
References:
[1] http://lwn.net/Articles/470339/
[2] https://patchwork.kernel.org/patch/2625361/
[3] http://linux.die.net/man/2/fcntl
Inki Dae (2
signal
Thanks,
Inki Dae
References:
[1] http://lwn.net/Articles/470339/
[2] https://patchwork.kernel.org/patch/2625361/
[3] http://linux.die.net/man/2/fcntl
Inki Dae (2):
[RFC PATCH v6] dmabuf-sync: Add a buffer synchronization framework
[RFC PATCH v2] dma-buf: Add user interfaces
? It seems that only Exynos5420 and
maybe Exynos5410 have this IP, NOT Exynos5250. Please check it again and
describe it surely over the all patch series.
Thanks,
Inki Dae
This device supports the following as key features.
input image format
- YCbCr420 2P(UV/VU), 3P
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Shaik Ameer Basha
Sent: Monday, August 19, 2013 7:59 PM
To: linux-media@vger.kernel.org; linux-samsung-...@vger.kernel.org
Cc: s.nawro...@samsung.com;
-Original Message-
From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
ow...@vger.kernel.org] On Behalf Of Shaik Ameer Basha
Sent: Tuesday, August 20, 2013 5:07 PM
To: Inki Dae
Cc: Shaik Ameer Basha; LMML; linux-samsung-...@vger.kernel.org;
c...@samsung.com; Sylwester
Thanks for the review,
Inki Dae
-Original Message-
From: linux-fbdev-ow...@vger.kernel.org [mailto:linux-fbdev-
ow...@vger.kernel.org] On Behalf Of Konrad Rzeszutek Wilk
Sent: Wednesday, August 21, 2013 4:22 AM
To: Inki Dae
Cc: dri-de...@lists.freedesktop.org; linux-fb
gpu rendering
time |
|
|-- Request page flip (deferred)
| - vsync signal
|-- Displayed on screen
|
|
|
| - vsync signal
Thanks,
Inki Dae
/
[2] https://patchwork.kernel.org/patch/2625361/
[3] http://linux.die.net/man/2/fcntl
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 286
drivers/base/Kconfig |7 +
drivers/base
Thanks for your comments,
Inki Dae
-Original Message-
From: David Herrmann [mailto:dh.herrm...@gmail.com]
Sent: Wednesday, August 21, 2013 10:17 PM
To: Inki Dae
Cc: dri-de...@lists.freedesktop.org; linux-fb...@vger.kernel.org; linux-
arm-ker...@lists.infradead.org; linux-media
|-- Displayed on screen
|
|
|
| - vsync signal
Thanks,
Inki Dae
References:
[1] http://lwn.net/Articles/470339/
[2] https://patchwork.kernel.org/patch/2625361/
[3] http://linux.die.net/man/2/fcntl
[4] https://www.tizen.org/
Inki Dae (2
intefaces for
the DMA device driver.
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/base/dma-buf.c | 81
1 files changed, 81 insertions(+), 0 deletions(-)
diff --git a/drivers/base
://linux.die.net/man/2/fcntl
Signed-off-by: Inki Dae inki@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/dma-buf-sync.txt | 286
drivers/base/Kconfig |7 +
drivers/base/Makefile |1 +
drivers/base/dma-buf.c
series.
Thanks,
Inki Dae
--
With warm regards,
Sachin
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)
goto err_free;
- }
- down_read(current-mm-mmap_sem);
- vma = find_vma(current-mm, userptr);
For vma, ditto.
Thanks,
Inki Dae
[--SNIP--]
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More
that the function has been mapping user
provided address without holding mmap_sem.
I'd like to see an Ack from one of the exynos drm driver maintainers before
I merge this.
Inki, Marek?
I already gave Ack but it seems that Jan missed it while updating.
Anyway,
Acked-by: Inki Dae inki
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