mesa3d: add intel gallium driver support
PATCH 1/1 mesa3d: add intel gallium driver support
--- package/mesa3d/Config.in | 9 +++++++++ package/mesa3d/mesa3d.mk | 1 + 2 files changed, 10 insertions(+)
package/mesa3d/Config.in +9 -0
@@ -43,6 +43,15 @@ config BR2_PACKAGE_MESA3D_NEEDS_XA comment "Gallium drivers" +config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_I915 + bool "Gallium i915 driver" + depends on BR2_i386 || BR2_x86_64 + select BR2_PACKAGE_MESA3D_GALLIUM_DRIVER + select BR2_PACKAGE_LIBDRM_INTEL + select BR2_PACKAGE_MESA3D_NEEDS_XA + help + Driver for Intel integrated graphics. + config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_NOUVEAU bool "Gallium nouveau driver" depends on BR2_i386 || BR2_x86_64
package/mesa3d/mesa3d.mk +1 -0
@@ -61,6 +61,7 @@ endif # Drivers #Gallium Drivers +MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_I915) += i915 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_NOUVEAU) += nouveau MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_R600) += r600 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SVGA) += svga
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2.4.10
PATCH 1/1 mesa3d: add intel gallium driver support
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"Gustavo" == Gustavo Zacarias <[email protected]> writes:
Signed-off-by Gustavo Zacarias <[email protected]>--- package/mesa3d/Config.in | 9 +++++++++ package/mesa3d/mesa3d.mk | 1 + 2 files changed, 10 insertions(+)package/mesa3d/Config.in +0
-0@@ -43,6 +43,15 @@ config BR2_PACKAGE_MESA3D_NEEDS_XA comment "Gallium drivers"
package/mesa3d/Config.in config BR2_PACKAGE_MESA3D_NEEDS_XA · line 54
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package/mesa3d/Config.in +9
-0+config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_I915 + bool "Gallium i915 driver" + depends on BR2_i386 || BR2_x86_64 + select BR2_PACKAGE_MESA3D_GALLIUM_DRIVER + select BR2_PACKAGE_LIBDRM_INTEL + select BR2_PACKAGE_MESA3D_NEEDS_XA + help + Driver for Intel integrated graphics. +
I don't know much about mesa, but I thought the Intel driver didn't use galium? Is this some kind of alternative to the dri driver?
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Bye, Peter Korsgaard
PATCH 1/1 mesa3d: add intel gallium driver support
Quoted 2 lines · Peter Korsgaard
I don't know much about mesa, but I thought the Intel driver didn't use galium? Is this some kind of alternative to the dri driver?
You've got both, from mesa configure:
--with-gallium-drivers[=DIRS...]
comma delimited Gallium drivers list, e.g.
"i915,ilo,nouveau,r300,r600,radeonsi,freedreno,svga,swrast,vc4,virgl"
[default=r300,r600,svga,swrast]Enabling it builds /usr/lib/dri/i915_dri.so besides others you may have selected (in my case kms_swrast_dri.so and swrast_dri.so). Otherwise we can ask Bernd, but i get that additional driver with this option, and it's documented.
Regards.
PATCH 1/1 mesa3d: add intel gallium driver support
Am Thu, 10 Mar 2016 17:08:47 -0300 schrieb Gustavo Zacarias:
Quoted 10 lines · Peter Korsgaard
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I don't know much about mesa, but I thought the Intel driver didn't use galium? Is this some kind of alternative to the dri driver?
You've got both, from mesa configure:
--with-gallium-drivers[=DIRS...]
comma delimited Gallium drivers list, e.g.
"i915,ilo,nouveau,r300,r600,radeonsi,freedreno,svga,swrast,vc4,virgl"
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[default=r300,r600,svga,swrast]Enabling it builds
/usr/lib/dri/i915_dri.sobesides others you may have selected (in my case kms_swrast_dri.so and swrast_dri.so). Otherwise we can ask Bernd, but i get that additional driver with this option, and it's documented.
Regards.
Hi,
I am using the DRI driver for my Kodi system and never tried the Gallium one because my personal Kodi package follows the OpenElec development, and they use DRI, too ;)
https://github.com/OpenELEC/OpenELEC.tv/blob/master/config/graphic#L26
Some quotes I found during a quick research:
http://www.mesa3d.org/relnotes/8.0.html (February 9, 2012) "Removed the dead Gallium i965, cell and failover drivers, which were either broken and with nobody in sight to fix the situation or deprecated."
https://blogs.igalia.com/itoral/2014/08/08/diving-into-mesa/
"Although there were some efforts to port the Intel driver to Gallium in the past, development of the Intel Gallium drivers (i915g and i965g) is stalled now as far as I know. Intel is focusing in the classic version of the drivers instead."
These days Intel is busy in coding a Vulkan driver for mesa3d:
https://cgit.freedesktop.org/mesa/mesa/tree/README.intel-vulkan.txt?
h=vulkan
To sum up: Yes, it is possible to build a i915 gallium driver in mesa3d, but who needs it? That's the reason I never implemented a Config.in option for it, but it will not hurt having one ;)
Regards, Bernd
PATCH 1/1 mesa3d: add intel gallium driver support
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"Bernd" == Bernd Kuhls <[email protected]> writes:
Hi,
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To sum up: Yes, it is possible to build a i915 gallium driver in mesa3d, but who needs it? That's the reason I never implemented a Config.in option for it, but it will not hurt having one ;)
Ok, that was more of less also my understanding. Gustavoz, what do you need the gallium driver for?
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Bye, Peter Korsgaard
PATCH 1/1 mesa3d: add intel gallium driver support
Quoted 8 lines · Peter Korsgaard
Hi,
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To sum up: Yes, it is possible to build a i915 gallium driver in mesa3d, but who needs it? That's the reason I never implemented a Config.in option for it, but it will not hurt having one ;)
Ok, that was more of less also my understanding. Gustavoz, what do you need the gallium driver for?
"DRI drivers need X.org" -> wayland, plus libgtk3 with it as backend. All that libepoxy effort would go to /dev/null otherwise. Regards.
PATCH 1/1 mesa3d: add intel gallium driver support
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"Gustavo" == Gustavo Zacarias <[email protected]> writes:
Quoted 6 lines · Peter Korsgaard
Hi,
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To sum up: Yes, it is possible to build a i915 gallium driver in mesa3d, but who needs it? That's the reason I never implemented a Config.in option for it, but it will not hurt having one ;)
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Ok, that was more of less also my understanding. Gustavoz, what do you need the gallium driver for?
"DRI drivers need X.org" -> wayland, plus libgtk3 with it as backend. All that libepoxy effort would go to
/dev/nullotherwise. Regards.
I actually think the comment is wrong. Googling around for wayland / mesa / intel seems to show a bunch of references to people using dri drivers and not gallium:
https://wayland.freedesktop.org/building.html
https://lists.freedesktop.org/archives/wayland-devel/2011-February/000702.html
https://lists.freedesktop.org/archives/wayland-devel/2012-August/004832.html
https://gist.github.com/tmpvar/6218568
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Venlig hilsen, Peter Korsgaard
PATCH 1/1 mesa3d: add intel gallium driver support
Quoted 8 lines · Peter Korsgaard
I actually think the comment is wrong. Googling around for wayland / mesa / intel seems to show a bunch of references to people using dri drivers and not gallium:
https://wayland.freedesktop.org/building.html
https://lists.freedesktop.org/archives/wayland-devel/2011-February/000702.html
https://lists.freedesktop.org/archives/wayland-devel/2012-August/004832.html
https://gist.github.com/tmpvar/6218568
Many people use xwayland hence care (or don't, depending on perspective) about lingering x11 stuff around.
The end reason is libgtk3 with the wayland and/or broadway backend, newer gtk3 versions require some form of *GL support provided by the libepoxy wrapper.
libepoxy in turn needs a real GLX and/or EGL provider, GLX is a no-brainer, it requires X11. EGL on the other hand does not. With some patching (sent) libepoxy can be built X11-less to only handle EGL, after all who wants a gtk3 with wayland carrying x11 luggage? (when building libgtk3 with only the wayland and/or broadway backends) Now, since newer libgtk3 versions mandate some form of GL support, which is wrapped by libepoxy and provided by mesa, doesn't it make sense that said GL support is accelerated?
Regards.
PATCH 1/1 mesa3d: add intel gallium driver support
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"Gustavo" == Gustavo Zacarias <[email protected]> writes:
Hi,
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Now, since newer libgtk3 versions mandate some form of GL support, which is wrapped by libepoxy and provided by mesa, doesn't it make sense that said GL support is accelerated?
Yes it does, it is just not clear to me that using this gallium driver is the way to do it. Your commit message also didn't explain this, which is why I'm asking.
Is this gallium driver useful for non-wayland (X11) setups? If not, perhaps it should depend on wayland.
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Venlig hilsen, Peter Korsgaard
PATCH 1/1 mesa3d: add intel gallium driver support
Quoted 6 lines · Peter Korsgaard
Yes it does, it is just not clear to me that using this gallium driver is the way to do it. Your commit message also didn't explain this, which is why I'm asking.
Is this gallium driver useful for non-wayland (X11) setups? If not, perhaps it should depend on wayland.
I fail to see why, you've got many other gallium drivers and they don't mention wayland either (noveau, r600, svga, swrast, virgl). I'm pretty sure these are valid for qt5 as well since it can use an EGL backend too.
Regards.
PATCH 1/1 mesa3d: add intel gallium driver support
In reply to Gustavo ZacariasHello,
Quoted 4 lines · Gustavo Zacarias
Quoted 2 lines · Peter Korsgaard
Hi,
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To sum up: Yes, it is possible to build a i915 gallium driver in mesa3d, but who needs it? That's the reason I never implemented a Config.in option for it, but it will not hurt having one ;)
Ok, that was more of less also my understanding. Gustavoz, what do you need the gallium driver for?
"DRI drivers need X.org" -> wayland, plus libgtk3 with it as backend.
"DRI drivers need X.org" ? This seems wrong, since you precisely sent a patch recently to all DRI drivers to be built without X.org.
So I guess this specific patch, allowing to build the unmaintained Intel Gallium driver is no longer needed?
I've marked it as Rejected on patchwork for now. Let me know if you disagree for some reason.
Thanks!
Thomas
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Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
PATCH 1/1 mesa3d: add intel gallium driver support
Quoted 6 lines · Thomas Petazzoni
"DRI drivers need X.org" ? This seems wrong, since you precisely sent a patch recently to all DRI drivers to be built without X.org.
So I guess this specific patch, allowing to build the unmaintained Intel Gallium driver is no longer needed?
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I've marked it as Rejected on patchwork for now. Let me know if you disagree for some reason.
Thanks!
Thomas
Hi Thomas.
The gallium intel driver wasn't cutting it like Bernd said so i tried/investigated the DRI route and it worked out.
So yes, even though it might be academically interesting to have the option to build the intel gallium driver it's pretty much useless so no argument from me since i got what was really interesting from the other patchset.
Regards.