From: Thomas Zimmermann <tzimmermann@suse.de>
To: maarten.lankhorst@linux.intel.com, mripard@kernel.org,
airlied@linux.ie, daniel@ffwll.ch, sam@ravnborg.org,
alexander.deucher@amd.com, christian.koenig@amd.com,
kraxel@redhat.com, l.stach@pengutronix.de,
linux+etnaviv@armlinux.org.uk, christian.gmeiner@gmail.com,
inki.dae@samsung.com, jy0922.shim@samsung.com,
sw0312.kim@samsung.com, kyungmin.park@samsung.com,
kgene@kernel.org, krzk@kernel.org, yuq825@gmail.com,
bskeggs@redhat.com, robh@kernel.org, tomeu.vizoso@collabora.com,
steven.price@arm.com, alyssa.rosenzweig@collabora.com,
hjc@rock-chips.com, heiko@sntech.de, hdegoede@redhat.com,
sean@poorly.run, eric@anholt.net,
oleksandr_andrushchenko@epam.com, ray.huang@amd.com,
sumit.semwal@linaro.org, emil.velikov@collabora.com,
luben.tuikov@amd.com, apaneers@amd.com, linus.walleij@linaro.org,
melissa.srw@gmail.com, chris@chris-wilson.co.uk,
miaoqinglang@huawei.com
Cc: linux-samsung-soc@vger.kernel.org, lima@lists.freedesktop.org,
nouveau@lists.freedesktop.org, etnaviv@lists.freedesktop.org,
amd-gfx@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
linaro-mm-sig@lists.linaro.org,
linux-rockchip@lists.infradead.org,
dri-devel@lists.freedesktop.org,
Thomas Zimmermann <tzimmermann@suse.de>,
xen-devel@lists.xenproject.org,
spice-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org
Subject: [PATCH v3 1/7] drm/vram-helper: Remove invariant parameters from internal kmap function
Date: Tue, 29 Sep 2020 17:14:31 +0200 [thread overview]
Message-ID: <20200929151437.19717-2-tzimmermann@suse.de> (raw)
In-Reply-To: <20200929151437.19717-1-tzimmermann@suse.de>
The parameters map and is_iomem are always of the same value. Removed them
to prepares the function for conversion to struct dma_buf_map.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/drm_gem_vram_helper.c | 17 ++++++-----------
1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 3fe4b326e18e..256b346664f2 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -382,16 +382,16 @@ int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo)
}
EXPORT_SYMBOL(drm_gem_vram_unpin);
-static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
- bool map, bool *is_iomem)
+static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo)
{
int ret;
struct ttm_bo_kmap_obj *kmap = &gbo->kmap;
+ bool is_iomem;
if (gbo->kmap_use_count > 0)
goto out;
- if (kmap->virtual || !map)
+ if (kmap->virtual)
goto out;
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, kmap);
@@ -399,15 +399,10 @@ static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
return ERR_PTR(ret);
out:
- if (!kmap->virtual) {
- if (is_iomem)
- *is_iomem = false;
+ if (!kmap->virtual)
return NULL; /* not mapped; don't increment ref */
- }
++gbo->kmap_use_count;
- if (is_iomem)
- return ttm_kmap_obj_virtual(kmap, is_iomem);
- return kmap->virtual;
+ return ttm_kmap_obj_virtual(kmap, &is_iomem);
}
static void drm_gem_vram_kunmap_locked(struct drm_gem_vram_object *gbo)
@@ -452,7 +447,7 @@ void *drm_gem_vram_vmap(struct drm_gem_vram_object *gbo)
ret = drm_gem_vram_pin_locked(gbo, 0);
if (ret)
goto err_ttm_bo_unreserve;
- base = drm_gem_vram_kmap_locked(gbo, true, NULL);
+ base = drm_gem_vram_kmap_locked(gbo);
if (IS_ERR(base)) {
ret = PTR_ERR(base);
goto err_drm_gem_vram_unpin_locked;
--
2.28.0
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next prev parent reply other threads:[~2020-09-29 15:15 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 15:14 [PATCH v3 0/7] Support GEM object mappings from I/O memory Thomas Zimmermann
2020-09-29 15:14 ` Thomas Zimmermann [this message]
2020-10-02 9:48 ` [PATCH v3 1/7] drm/vram-helper: Remove invariant parameters from internal kmap function Daniel Vetter
2020-09-29 15:14 ` [PATCH v3 2/7] drm/ttm: Add ttm_kmap_obj_to_dma_buf_map() for type conversion Thomas Zimmermann
2020-09-29 15:35 ` Christian König
2020-09-29 15:44 ` Daniel Vetter
2020-09-29 17:49 ` Thomas Zimmermann
[not found] ` <8a84f62b-33f3-f44c-52af-c859a0e0d1fb@gmail.com>
2020-09-30 8:19 ` Thomas Zimmermann
[not found] ` <b569b7e3-68f0-edcc-c8f4-170e9042d348@gmail.com>
2020-09-30 9:47 ` Daniel Vetter
2020-09-30 12:34 ` Christian König
2020-09-30 12:51 ` Daniel Vetter
2020-10-02 9:58 ` Daniel Vetter
2020-10-02 11:30 ` Christian König
2020-10-02 12:21 ` Daniel Vetter
2020-10-07 12:57 ` Thomas Zimmermann
2020-10-07 13:10 ` Daniel Vetter
2020-10-07 13:20 ` Thomas Zimmermann
2020-10-07 13:24 ` Christian König
2020-10-07 14:30 ` Daniel Vetter
2020-10-08 9:00 ` Thomas Zimmermann
2020-09-29 15:14 ` [PATCH v3 3/7] drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends Thomas Zimmermann
2020-10-02 13:02 ` Daniel Vetter
2020-09-29 15:14 ` [PATCH v3 4/7] drm/gem: Update internal GEM vmap/vunmap interfaces to use struct dma_buf_map Thomas Zimmermann
2020-10-02 13:04 ` Daniel Vetter
2020-09-29 15:14 ` [PATCH v3 5/7] drm/gem: Store client buffer mappings as " Thomas Zimmermann
2020-10-02 13:05 ` Daniel Vetter
2020-09-29 15:14 ` [PATCH v3 6/7] drm/fb_helper: Support framebuffers in I/O memory Thomas Zimmermann
2020-10-02 18:05 ` Daniel Vetter
2020-10-02 18:44 ` Daniel Vetter
2020-10-08 9:25 ` Thomas Zimmermann
2020-10-08 9:35 ` Daniel Vetter
2020-09-29 15:14 ` [PATCH v3 7/7] drm/todo: Update entries around struct dma_buf_map Thomas Zimmermann
2020-10-02 18:45 ` Daniel Vetter
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