From: Thomas Zimmermann <tzimmermann@suse.de>
To: daniel@ffwll.ch, airlied@redhat.com, sam@ravnborg.org,
emil.velikov@collabora.com, lyude@redhat.com, krzk@kernel.org,
john.p.donnelly@Oracle.com, rong.a.chen@intel.com,
kraxel@redhat.com, eich@suse.com, tiwai@suse.de
Cc: Thomas Zimmermann <tzimmermann@suse.de>, dri-devel@lists.freedesktop.org
Subject: [PATCH 1/8] drm/mgag200: Enable caching for SHMEM pages
Date: Wed, 15 Jul 2020 16:58:55 +0200 [thread overview]
Message-ID: <20200715145902.13122-2-tzimmermann@suse.de> (raw)
In-Reply-To: <20200715145902.13122-1-tzimmermann@suse.de>
SHMEM pages use write-combine caching by default, but can also use the
platform's default page caching. Doing so may improve the performance
of I/O on the framebuffer.
Mgag200's hardware does not access framebuffer pages directly (i.e.,
via DMA), so enabling caching does not have an effect on consistency
of the framebuffer memory or the displayed data.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/mgag200/mgag200_drv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index e19660f4a637..7189c7745baf 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -36,6 +36,7 @@ static struct drm_driver mgag200_driver = {
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
+ .gem_create_object = drm_gem_shmem_create_object_cached,
DRM_GEM_SHMEM_DRIVER_OPS,
};
--
2.27.0
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next prev parent reply other threads:[~2020-07-15 14:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 14:58 [PATCH 0/8] drm/mgag200: Support desktop chips Thomas Zimmermann
2020-07-15 14:58 ` Thomas Zimmermann [this message]
2020-07-15 14:58 ` [PATCH 2/8] drm/mgag200: Move register initialization into helper function Thomas Zimmermann
2020-07-15 14:58 ` [PATCH 3/8] drm/mgag200: Initialize PCI registers early during device setup Thomas Zimmermann
2020-07-15 14:58 ` [PATCH 4/8] drm/mgag200: Enable MGA mode during device register initialization Thomas Zimmermann
2020-07-15 14:58 ` [PATCH 5/8] drm/mgag200: Set MISC memory flags in mm init code Thomas Zimmermann
2020-07-15 14:59 ` [PATCH 6/8] drm/mgag200: Clear <page> field during MM init Thomas Zimmermann
2020-07-15 14:59 ` [PATCH 7/8] drm/mgag200: Move G200SE's unique id into model-specific data Thomas Zimmermann
2020-07-15 14:59 ` [PATCH 8/8] drm/mgag200: Add support for G200 desktop cards Thomas Zimmermann
2020-07-16 22:43 ` Lyude Paul
2020-07-17 5:45 ` Sam Ravnborg
2020-07-20 7:04 ` Thomas Zimmermann
2020-07-20 19:18 ` Lyude Paul
2020-07-20 20:16 ` Sam Ravnborg
2020-07-21 7:19 ` Thomas Zimmermann
2020-07-15 19:56 ` [PATCH 0/8] drm/mgag200: Support desktop chips Dave Airlie
2020-07-15 20:48 ` Daniel Vetter
2020-07-16 5:44 ` Thomas Zimmermann
2020-07-16 5:55 ` Thomas Zimmermann
2020-07-16 8:22 ` Egbert Eich
2020-07-15 22:32 ` Lyude Paul
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