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Message-ID: <CAOw6vbJ1nyL4Pk1VkwOmEbk8ohewRTu93F8CTfQgFWGvp2fegw@mail.gmail.com>
Date: Mon, 16 Oct 2017 14:45:33 -0400
From: Sean Paul <seanpaul@...omium.org>
To: Harsha Sharma <harshasharmaiitr@...il.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
dri-devel <dri-devel@...ts.freedesktop.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
outreachy-kernel <outreachy-kernel@...glegroups.com>
Subject: Re: [PATCH v5] drm/i915: Replace *_reference/unreference() or
*_ref/unref with _get/put()
On Sat, Oct 14, 2017 at 2:36 PM, Harsha Sharma
<harshasharmaiitr@...il.com> wrote:
> Replace instances of drm_framebuffer_reference/unreference() with
> *_get/put() suffixes and drm_dev_unref with *_put() suffix
> because get/put is shorter and consistent with the
> kernel use of *_get/put suffixes.
> Done with following coccinelle semantic patch
>
> @@
> expression ex;
> @@
>
> (
> -drm_framebuffer_unreference(ex);
> +drm_framebuffer_put(ex);
> |
> -drm_dev_unref(ex);
> +drm_dev_put(ex);
> |
> -drm_framebuffer_reference(ex);
> +drm_framebuffer_get(ex);
> )
>
When I run this spatch on drm-tip, I get a bunch more changes than
this (below). Are you just running it on i915_pci?
Sean
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 09d97e0990b7..2f106cca46b4 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -510,7 +510,7 @@ static void i915_pci_remove(struct pci_dev *pdev)
struct drm_device *dev = pci_get_drvdata(pdev);
i915_driver_unload(dev);
- drm_dev_unref(dev);
+ drm_dev_put(dev);
}
static int i915_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 5c7828c52d12..db755b9a5efd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2856,7 +2856,7 @@ intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc,
if (intel_plane_ggtt_offset(state) == plane_config->base) {
fb = c->primary->fb;
- drm_framebuffer_reference(fb);
+ drm_framebuffer_get(fb);
goto valid_fb;
}
}
@@ -2887,7 +2887,7 @@ intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc,
intel_crtc->pipe, PTR_ERR(intel_state->vma));
intel_state->vma = NULL;
- drm_framebuffer_unreference(fb);
+ drm_framebuffer_put(fb);
return;
}
@@ -2908,7 +2908,7 @@ intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc,
if (i915_gem_object_is_tiled(obj))
dev_priv->preserve_bios_swizzle = true;
- drm_framebuffer_reference(fb);
+ drm_framebuffer_get(fb);
primary->fb = primary->state->fb = fb;
primary->crtc = primary->state->crtc = &intel_crtc->base;
@@ -9847,7 +9847,7 @@ mode_fits_in_fbdev(struct drm_device *dev,
if (obj->base.size < mode->vdisplay * fb->pitches[0])
return NULL;
- drm_framebuffer_reference(fb);
+ drm_framebuffer_get(fb);
return fb;
#else
return NULL;
@@ -10028,7 +10028,7 @@ int intel_get_load_detect_pipe(struct
drm_connector *connector,
if (ret)
goto fail;
- drm_framebuffer_unreference(fb);
+ drm_framebuffer_put(fb);
ret = drm_atomic_set_mode_for_crtc(&crtc_state->base, mode);
if (ret)
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c
b/drivers/gpu/drm/i915/intel_fbdev.c
index 262e75c00dd2..e34334a1fbf9 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -189,7 +189,7 @@ static int intelfb_create(struct drm_fb_helper *helper,
" releasing it\n",
intel_fb->base.width, intel_fb->base.height,
sizes->fb_width, sizes->fb_height);
- drm_framebuffer_unreference(&intel_fb->base);
+ drm_framebuffer_put(&intel_fb->base);
intel_fb = ifbdev->fb = NULL;
}
if (!intel_fb || WARN_ON(!intel_fb->obj)) {
@@ -624,7 +624,7 @@ static bool intel_fbdev_init_bios(struct drm_device *dev,
ifbdev->preferred_bpp = fb->base.format->cpp[0] * 8;
ifbdev->fb = fb;
- drm_framebuffer_reference(&ifbdev->fb->base);
+ drm_framebuffer_get(&ifbdev->fb->base);
/* Final pass to check if any active pipes don't have fbs */
for_each_crtc(dev, crtc) {
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
b/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
index 89dc25a5a53b..a7055b12e53c 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
@@ -389,7 +389,7 @@ int i915_gem_dmabuf_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 5ea373221f49..75764fdb90da 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -345,6 +345,6 @@ int i915_gem_evict_mock_selftests(void)
err = i915_subtests(tests, i915);
mutex_unlock(&i915->drm.struct_mutex);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 6b132caffa18..bc3c4a5776bd 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1540,7 +1540,7 @@ int i915_gem_gtt_mock_selftests(void)
err = i915_subtests(tests, i915);
mutex_unlock(&i915->drm.struct_mutex);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_object.c
b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
index 8f011c447e41..7bfd9900798a 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
@@ -586,7 +586,7 @@ int i915_gem_object_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_request.c
b/drivers/gpu/drm/i915/selftests/i915_gem_request.c
index 6664cb2eb0b8..8985578cf8a5 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_request.c
@@ -260,7 +260,7 @@ int i915_gem_request_mock_selftests(void)
return -ENOMEM;
err = i915_subtests(tests, i915);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c
b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 2e86ec136b35..d8cc0a665169 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -734,7 +734,7 @@ int i915_vma_mock_selftests(void)
err = i915_subtests(tests, i915);
mutex_unlock(&i915->drm.struct_mutex);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
index 828904b7d468..3c8bf447b890 100644
--- a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
@@ -475,7 +475,7 @@ int intel_breadcrumbs_mock_selftests(void)
return -ENOMEM;
err = i915_subtests(tests, i915->engine[RCS]);
- drm_dev_unref(&i915->drm);
+ drm_dev_put(&i915->drm);
return err;
}
> Signed-off-by: Harsha Sharma <harshasharmaiitr@...il.com>
> ---
> Changes in v5:
> -rebase drm_dev_put change on drm-tip
> Changes in v4:
> -change one instance of *_put to *_get
> Changes in v3:
> -Removed changes in selftests
> Changes in v2:
> -Added cocinelle patch in log message
> -cc to all driver-specific mailing lists
> drivers/gpu/drm/i915/i915_pci.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index bf467f30c99b..1223961c3700 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -645,7 +645,7 @@ static void i915_pci_remove(struct pci_dev *pdev)
> struct drm_device *dev = pci_get_drvdata(pdev);
>
> i915_driver_unload(dev);
> - drm_dev_unref(dev);
> + drm_dev_put(dev);
> }
>
> static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> --
> 2.11.0
>
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