Re: [Freedreno] [PATCH 1/4] dma-buf: add dma_fence_describe and dma_resv_describe
On Fri, Sep 24, 2021 at 12:18 AM Christian König
wrote:
>
> Add functions to dump dma_fence and dma_resv objects into a seq_file and
> use them for printing the debugfs informations.
>
> Signed-off-by: Christian König
for the series,
Reviewed-by: Rob Clark
> ---
> drivers/dma-buf/dma-buf.c | 11 +--
> drivers/dma-buf/dma-fence.c | 16
> drivers/dma-buf/dma-resv.c | 23 +++
> include/linux/dma-fence.h | 1 +
> include/linux/dma-resv.h| 1 +
> 5 files changed, 42 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index d35c71743ccb..4975c9289b02 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -1368,8 +1368,6 @@ static int dma_buf_debug_show(struct seq_file *s, void
> *unused)
> {
> struct dma_buf *buf_obj;
> struct dma_buf_attachment *attach_obj;
> - struct dma_resv_iter cursor;
> - struct dma_fence *fence;
> int count = 0, attach_count;
> size_t size = 0;
> int ret;
> @@ -1397,14 +1395,7 @@ static int dma_buf_debug_show(struct seq_file *s, void
> *unused)
> file_inode(buf_obj->file)->i_ino,
> buf_obj->name ?: "");
>
> - dma_resv_for_each_fence(, buf_obj->resv, true, fence) {
> - seq_printf(s, "\t%s fence: %s %s %ssignalled\n",
> - dma_resv_iter_is_exclusive() ?
> - "Exclusive" : "Shared",
> - fence->ops->get_driver_name(fence),
> - fence->ops->get_timeline_name(fence),
> - dma_fence_is_signaled(fence) ? "" : "un");
> - }
> + dma_resv_describe(buf_obj->resv, s);
>
> seq_puts(s, "\tAttached Devices:\n");
> attach_count = 0;
> diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
> index 1e82ecd443fa..5175adf58644 100644
> --- a/drivers/dma-buf/dma-fence.c
> +++ b/drivers/dma-buf/dma-fence.c
> @@ -907,6 +907,22 @@ dma_fence_wait_any_timeout(struct dma_fence **fences,
> uint32_t count,
> }
> EXPORT_SYMBOL(dma_fence_wait_any_timeout);
>
> +/**
> + * dma_fence_describe - Dump fence describtion into seq_file
> + * @fence: the 6fence to describe
> + * @seq: the seq_file to put the textual description into
> + *
> + * Dump a textual description of the fence and it's state into the seq_file.
> + */
> +void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq)
> +{
> + seq_printf(seq, "%s %s seq %llu %ssignalled\n",
> + fence->ops->get_driver_name(fence),
> + fence->ops->get_timeline_name(fence), fence->seqno,
> + dma_fence_is_signaled(fence) ? "" : "un");
> +}
> +EXPORT_SYMBOL(dma_fence_describe);
> +
> /**
> * dma_fence_init - Initialize a custom fence.
> * @fence: the fence to initialize
> diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
> index 266ec9e3caef..6bb25d53e702 100644
> --- a/drivers/dma-buf/dma-resv.c
> +++ b/drivers/dma-buf/dma-resv.c
> @@ -38,6 +38,7 @@
> #include
> #include
> #include
> +#include
>
> /**
> * DOC: Reservation Object Overview
> @@ -654,6 +655,28 @@ bool dma_resv_test_signaled(struct dma_resv *obj, bool
> test_all)
> }
> EXPORT_SYMBOL_GPL(dma_resv_test_signaled);
>
> +/**
> + * dma_resv_describe - Dump description of the resv object into seq_file
> + * @obj: the reservation object
> + * @seq: the seq_file to dump the description into
> + *
> + * Dump a textual description of the fences inside an dma_resv object into
> the
> + * seq_file.
> + */
> +void dma_resv_describe(struct dma_resv *obj, struct seq_file *seq)
> +{
> + struct dma_resv_iter cursor;
> + struct dma_fence *fence;
> +
> + dma_resv_for_each_fence(, obj, true, fence) {
> + seq_printf(seq, "\t%s fence:",
> + dma_resv_iter_is_exclusive() ?
> + "Exclusive" : "Shared");
> + dma_fence_describe(fence, seq);
> + }
> +}
> +EXPORT_SYMBOL_GPL(dma_resv_describe);
> +
> #if IS_ENABLED(CONFIG_LOCKDEP)
> static int __init dma_resv_lockdep(void)
> {
> diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
> index a706b7bf51d7..1ea691753bd3 100644
> --- a/include/linux/dma-fence.h
> +++ b/include/linux/dma-fence.h
> @@ -264,6 +264,7 @@ void dma_fence_init(struct dma_fence *fence, const struct
> dma_fence_ops *ops,
>
> void dma_fence_release(struct kref *kref);
> void dma_fence_free(struct dma_fence *fence);
> +void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq);
>
> /**
> * dma_fence_put - decreases refcount of the fence
> diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h
> index d4b4cd43f0f1..49c0152073fd 100644
> ---
Re: [Freedreno] (subset) [PATCH v4 03/24] drm/mipi-dsi: Create devm device registration
On Fri, 10 Sep 2021 12:11:57 +0200, Maxime Ripard wrote: > Devices that take their data through the MIPI-DSI bus but are controlled > through a secondary bus like I2C have to register a secondary device on > the MIPI-DSI bus through the mipi_dsi_device_register_full() function. > > At removal or when an error occurs, that device needs to be removed > through a call to mipi_dsi_device_unregister(). > > [...] Applied to drm/drm-misc (drm-misc-next). Thanks! Maxime
Re: [Freedreno] (subset) [PATCH v4 04/24] drm/mipi-dsi: Create devm device attachment
On Fri, 10 Sep 2021 12:11:58 +0200, Maxime Ripard wrote: > MIPI-DSI devices need to call mipi_dsi_attach() when their probe is done > to attach against their host. > > However, at removal or when an error occurs, that attachment needs to be > undone through a call to mipi_dsi_detach(). > > Let's create a device-managed variant of the attachment function that > will automatically detach the device at unbind. > > [...] Applied to drm/drm-misc (drm-misc-next). Thanks! Maxime
Re: [Freedreno] (subset) [PATCH v4 01/24] drm/bridge: Add documentation sections
On Fri, 10 Sep 2021 12:11:55 +0200, Maxime Ripard wrote: > The bridge documentation overview is quite packed already, and we'll add > some more documentation that isn't part of an overview at all. > > Let's add some sections to the documentation to separate each bits. > > Applied to drm/drm-misc (drm-misc-next). Thanks! Maxime
Re: [Freedreno] (subset) [PATCH v4 02/24] drm/bridge: Document the probe issue with MIPI-DSI bridges
On Fri, 10 Sep 2021 12:11:56 +0200, Maxime Ripard wrote: > Interactions between bridges, panels, MIPI-DSI host and the component > framework are not trivial and can lead to probing issues when > implementing a display driver. Let's document the various cases we need > too consider, and the solution to support all the cases. > > Applied to drm/drm-misc (drm-misc-next). Thanks! Maxime
[Freedreno] [PATCH 2/4] drm/msm: allow compile_test on !ARM
MSM is one of the few drivers which won't even compile
test on !ARM platforms.
Looking into this a bit more it turned out that there is
actually not that much missing to at least let the driver
compile on x86 as well.
So this patch replaces the use of phys_to_page() with the
open coded version and provides a dummy for of_drm_find_bridge().
Signed-off-by: Christian König
---
drivers/gpu/drm/msm/Kconfig | 4 ++--
drivers/gpu/drm/msm/msm_gem.c | 2 +-
include/drm/drm_bridge.h | 10 +-
3 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index e9c6af78b1d7..5879f67bc88c 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -3,9 +3,9 @@
config DRM_MSM
tristate "MSM DRM"
depends on DRM
- depends on ARCH_QCOM || SOC_IMX5 || (ARM && COMPILE_TEST)
+ depends on ARCH_QCOM || SOC_IMX5 || COMPILE_TEST
depends on IOMMU_SUPPORT
- depends on OF && COMMON_CLK
+ depends on (OF && COMMON_CLK) || COMPILE_TEST
depends on QCOM_OCMEM || QCOM_OCMEM=n
depends on QCOM_LLCC || QCOM_LLCC=n
depends on QCOM_COMMAND_DB || QCOM_COMMAND_DB=n
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 14907622769f..5bd511f07c07 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -85,7 +85,7 @@ static struct page **get_pages_vram(struct drm_gem_object
*obj, int npages)
paddr = physaddr(obj);
for (i = 0; i < npages; i++) {
- p[i] = phys_to_page(paddr);
+ p[i] = pfn_to_page(__phys_to_pfn(paddr));
paddr += PAGE_SIZE;
}
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 9cdbd209388e..a445298e1c25 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -790,11 +790,19 @@ drm_priv_to_bridge(struct drm_private_obj *priv)
void drm_bridge_add(struct drm_bridge *bridge);
void drm_bridge_remove(struct drm_bridge *bridge);
-struct drm_bridge *of_drm_find_bridge(struct device_node *np);
int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,
struct drm_bridge *previous,
enum drm_bridge_attach_flags flags);
+#ifdef CONFIG_OF
+struct drm_bridge *of_drm_find_bridge(struct device_node *np);
+#else
+static inline struct drm_bridge *of_drm_find_bridge(struct device_node *np)
+{
+ return NULL;
+}
+#endif
+
/**
* drm_bridge_get_next_bridge() - Get the next bridge in the chain
* @bridge: bridge object
--
2.25.1
[Freedreno] [PATCH 3/4] drm/msm: use the new dma_resv_describe
Instead of hand rolling pretty much the same code.
Signed-off-by: Christian König
---
drivers/gpu/drm/msm/msm_gem.c | 20 +---
1 file changed, 1 insertion(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 5bd511f07c07..3878b8dc2d59 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -865,23 +865,11 @@ int msm_gem_cpu_fini(struct drm_gem_object *obj)
}
#ifdef CONFIG_DEBUG_FS
-static void describe_fence(struct dma_fence *fence, const char *type,
- struct seq_file *m)
-{
- if (!dma_fence_is_signaled(fence))
- seq_printf(m, "\t%9s: %s %s seq %llu\n", type,
- fence->ops->get_driver_name(fence),
- fence->ops->get_timeline_name(fence),
- fence->seqno);
-}
-
void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m,
struct msm_gem_stats *stats)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct dma_resv *robj = obj->resv;
- struct dma_resv_iter cursor;
- struct dma_fence *fence;
struct msm_gem_vma *vma;
uint64_t off = drm_vma_node_start(>vma_node);
const char *madv;
@@ -955,13 +943,7 @@ void msm_gem_describe(struct drm_gem_object *obj, struct
seq_file *m,
seq_puts(m, "\n");
}
- dma_resv_for_each_fence(, robj, true, fence) {
- if (dma_resv_iter_is_exclusive())
- describe_fence(fence, "Exclusive", m);
- else
- describe_fence(fence, "Shared", m);
- }
-
+ dma_resv_describe(robj, m);
msm_gem_unlock(obj);
}
--
2.25.1
[Freedreno] [PATCH 4/4] drm/etnaviv: use dma_resv_describe
Instead of dumping the fence info manually.
Signed-off-by: Christian König
---
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 26 +++---
1 file changed, 7 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 0eeb33de2ff4..304b006e86bb 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -425,36 +425,24 @@ int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct
drm_gem_object *obj,
}
#ifdef CONFIG_DEBUG_FS
-static void etnaviv_gem_describe_fence(struct dma_fence *fence,
- const char *type, struct seq_file *m)
-{
- seq_printf(m, "\t%9s: %s %s seq %llu\n", type,
- fence->ops->get_driver_name(fence),
- fence->ops->get_timeline_name(fence),
- fence->seqno);
-}
-
static void etnaviv_gem_describe(struct drm_gem_object *obj, struct seq_file
*m)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct dma_resv *robj = obj->resv;
- struct dma_resv_iter cursor;
- struct dma_fence *fence;
unsigned long off = drm_vma_node_start(>vma_node);
+ int r;
seq_printf(m, "%08x: %c %2d (%2d) %08lx %p %zd\n",
etnaviv_obj->flags, is_active(etnaviv_obj) ? 'A' : 'I',
obj->name, kref_read(>refcount),
off, etnaviv_obj->vaddr, obj->size);
- dma_resv_iter_begin(, robj, true);
- dma_resv_for_each_fence_unlocked(, fence) {
- if (dma_resv_iter_is_exclusive())
- etnaviv_gem_describe_fence(fence, "Exclusive", m);
- else
- etnaviv_gem_describe_fence(fence, "Shared", m);
- }
- dma_resv_iter_end();
+ r = dma_resv_lock(robj, NULL);
+ if (r)
+ return;
+
+ dma_resv_describe(robj, m);
+ dma_resv_unlock(robj);
}
void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
--
2.25.1
[Freedreno] [PATCH 1/4] dma-buf: add dma_fence_describe and dma_resv_describe
Add functions to dump dma_fence and dma_resv objects into a seq_file and
use them for printing the debugfs informations.
Signed-off-by: Christian König
---
drivers/dma-buf/dma-buf.c | 11 +--
drivers/dma-buf/dma-fence.c | 16
drivers/dma-buf/dma-resv.c | 23 +++
include/linux/dma-fence.h | 1 +
include/linux/dma-resv.h| 1 +
5 files changed, 42 insertions(+), 10 deletions(-)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index d35c71743ccb..4975c9289b02 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1368,8 +1368,6 @@ static int dma_buf_debug_show(struct seq_file *s, void
*unused)
{
struct dma_buf *buf_obj;
struct dma_buf_attachment *attach_obj;
- struct dma_resv_iter cursor;
- struct dma_fence *fence;
int count = 0, attach_count;
size_t size = 0;
int ret;
@@ -1397,14 +1395,7 @@ static int dma_buf_debug_show(struct seq_file *s, void
*unused)
file_inode(buf_obj->file)->i_ino,
buf_obj->name ?: "");
- dma_resv_for_each_fence(, buf_obj->resv, true, fence) {
- seq_printf(s, "\t%s fence: %s %s %ssignalled\n",
- dma_resv_iter_is_exclusive() ?
- "Exclusive" : "Shared",
- fence->ops->get_driver_name(fence),
- fence->ops->get_timeline_name(fence),
- dma_fence_is_signaled(fence) ? "" : "un");
- }
+ dma_resv_describe(buf_obj->resv, s);
seq_puts(s, "\tAttached Devices:\n");
attach_count = 0;
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 1e82ecd443fa..5175adf58644 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -907,6 +907,22 @@ dma_fence_wait_any_timeout(struct dma_fence **fences,
uint32_t count,
}
EXPORT_SYMBOL(dma_fence_wait_any_timeout);
+/**
+ * dma_fence_describe - Dump fence describtion into seq_file
+ * @fence: the 6fence to describe
+ * @seq: the seq_file to put the textual description into
+ *
+ * Dump a textual description of the fence and it's state into the seq_file.
+ */
+void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq)
+{
+ seq_printf(seq, "%s %s seq %llu %ssignalled\n",
+ fence->ops->get_driver_name(fence),
+ fence->ops->get_timeline_name(fence), fence->seqno,
+ dma_fence_is_signaled(fence) ? "" : "un");
+}
+EXPORT_SYMBOL(dma_fence_describe);
+
/**
* dma_fence_init - Initialize a custom fence.
* @fence: the fence to initialize
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
index 266ec9e3caef..6bb25d53e702 100644
--- a/drivers/dma-buf/dma-resv.c
+++ b/drivers/dma-buf/dma-resv.c
@@ -38,6 +38,7 @@
#include
#include
#include
+#include
/**
* DOC: Reservation Object Overview
@@ -654,6 +655,28 @@ bool dma_resv_test_signaled(struct dma_resv *obj, bool
test_all)
}
EXPORT_SYMBOL_GPL(dma_resv_test_signaled);
+/**
+ * dma_resv_describe - Dump description of the resv object into seq_file
+ * @obj: the reservation object
+ * @seq: the seq_file to dump the description into
+ *
+ * Dump a textual description of the fences inside an dma_resv object into the
+ * seq_file.
+ */
+void dma_resv_describe(struct dma_resv *obj, struct seq_file *seq)
+{
+ struct dma_resv_iter cursor;
+ struct dma_fence *fence;
+
+ dma_resv_for_each_fence(, obj, true, fence) {
+ seq_printf(seq, "\t%s fence:",
+ dma_resv_iter_is_exclusive() ?
+ "Exclusive" : "Shared");
+ dma_fence_describe(fence, seq);
+ }
+}
+EXPORT_SYMBOL_GPL(dma_resv_describe);
+
#if IS_ENABLED(CONFIG_LOCKDEP)
static int __init dma_resv_lockdep(void)
{
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index a706b7bf51d7..1ea691753bd3 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -264,6 +264,7 @@ void dma_fence_init(struct dma_fence *fence, const struct
dma_fence_ops *ops,
void dma_fence_release(struct kref *kref);
void dma_fence_free(struct dma_fence *fence);
+void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq);
/**
* dma_fence_put - decreases refcount of the fence
diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h
index d4b4cd43f0f1..49c0152073fd 100644
--- a/include/linux/dma-resv.h
+++ b/include/linux/dma-resv.h
@@ -486,5 +486,6 @@ int dma_resv_copy_fences(struct dma_resv *dst, struct
dma_resv *src);
long dma_resv_wait_timeout(struct dma_resv *obj, bool wait_all, bool intr,
unsigned long timeout);
bool dma_resv_test_signaled(struct dma_resv *obj, bool test_all);
+void
[Freedreno] [PATCH v2 04/17] drm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
---
drivers/gpu/drm/drm_client_modeset.c | 5 +++--
drivers/gpu/drm/drm_crtc_helper.c| 18 --
drivers/gpu/drm/drm_fb_helper.c | 10 ++
drivers/gpu/drm/drm_framebuffer.c| 6 --
4 files changed, 25 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/drm_client_modeset.c
b/drivers/gpu/drm/drm_client_modeset.c
index 5f5184f071ed..43f772543d2a 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -1062,9 +1062,10 @@ static int drm_client_modeset_commit_legacy(struct
drm_client_dev *client)
struct drm_device *dev = client->dev;
struct drm_mode_set *mode_set;
struct drm_plane *plane;
+ struct drm_modeset_acquire_ctx ctx;
int ret = 0;
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_for_each_plane(plane, dev) {
if (plane->type != DRM_PLANE_TYPE_PRIMARY)
drm_plane_force_disable(plane);
@@ -1093,7 +1094,7 @@ static int drm_client_modeset_commit_legacy(struct
drm_client_dev *client)
goto out;
}
out:
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
return ret;
}
diff --git a/drivers/gpu/drm/drm_crtc_helper.c
b/drivers/gpu/drm/drm_crtc_helper.c
index bff917531f33..f3ce073dff79 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -218,11 +218,14 @@ static void __drm_helper_disable_unused_functions(struct
drm_device *dev)
*/
void drm_helper_disable_unused_functions(struct drm_device *dev)
{
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
+
WARN_ON(drm_drv_uses_atomic_modeset(dev));
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
__drm_helper_disable_unused_functions(dev);
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
}
EXPORT_SYMBOL(drm_helper_disable_unused_functions);
@@ -942,12 +945,14 @@ void drm_helper_resume_force_mode(struct drm_device *dev)
struct drm_crtc *crtc;
struct drm_encoder *encoder;
const struct drm_crtc_helper_funcs *crtc_funcs;
+ struct drm_modeset_acquire_ctx ctx;
int encoder_dpms;
bool ret;
+ int err;
WARN_ON(drm_drv_uses_atomic_modeset(dev));
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, err);
drm_for_each_crtc(crtc, dev) {
if (!crtc->enabled)
@@ -982,7 +987,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev)
/* disable the unused connectors while restoring the modesetting */
__drm_helper_disable_unused_functions(dev);
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, err);
}
EXPORT_SYMBOL(drm_helper_resume_force_mode);
@@ -1002,9 +1007,10 @@ EXPORT_SYMBOL(drm_helper_resume_force_mode);
int drm_helper_force_disable_all(struct drm_device *dev)
{
struct drm_crtc *crtc;
+ struct drm_modeset_acquire_ctx ctx;
int ret = 0;
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_for_each_crtc(crtc, dev)
if (crtc->enabled) {
struct drm_mode_set set = {
@@ -1016,7 +1022,7 @@ int drm_helper_force_disable_all(struct drm_device *dev)
goto out;
}
out:
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
return ret;
}
EXPORT_SYMBOL(drm_helper_force_disable_all);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 3ab078321045..6860223f0068 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -940,10 +940,11 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct
fb_info *info)
struct drm_fb_helper *fb_helper = info->par;
struct drm_mode_set *modeset;
struct drm_crtc *crtc;
+ struct drm_modeset_acquire_ctx ctx;
u16 *r, *g, *b;
int ret = 0;
- drm_modeset_lock_all(fb_helper->dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(fb_helper->dev, ctx, 0, ret);
drm_client_for_each_modeset(modeset, _helper->client) {
crtc = modeset->crtc;
if (!crtc->funcs->gamma_set || !crtc->gamma_size) {
@@ -970,7 +971,7 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct
fb_info *info)
goto out;
}
out:
- drm_modeset_unlock_all(fb_helper->dev);
+ DRM_MODESET_LOCK_ALL_END(fb_helper->dev, ctx, ret);
return ret;
}
@@ -1441,10 +1442,11 @@ static int pan_display_legacy(struct
[Freedreno] [PATCH v2 12/17] drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
---
drivers/gpu/drm/i915/display/intel_audio.c| 16 ---
drivers/gpu/drm/i915/display/intel_display.c | 5 +-
.../drm/i915/display/intel_display_debugfs.c | 46 ---
drivers/gpu/drm/i915/display/intel_overlay.c | 6 ++-
drivers/gpu/drm/i915/display/intel_pipe_crc.c | 7 ++-
drivers/gpu/drm/i915/i915_drv.c | 13 --
6 files changed, 61 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_audio.c
b/drivers/gpu/drm/i915/display/intel_audio.c
index 532237588511..c64f738cc062 100644
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -26,6 +26,7 @@
#include
#include
+#include
#include "i915_drv.h"
#include "intel_atomic.h"
@@ -1214,7 +1215,8 @@ static int i915_audio_component_bind(struct device
*i915_kdev,
{
struct i915_audio_component *acomp = data;
struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev);
- int i;
+ struct drm_modeset_acquire_ctx ctx;
+ int i, ret;
if (drm_WARN_ON(_priv->drm, acomp->base.ops || acomp->base.dev))
return -EEXIST;
@@ -1224,16 +1226,16 @@ static int i915_audio_component_bind(struct device
*i915_kdev,
DL_FLAG_STATELESS)))
return -ENOMEM;
- drm_modeset_lock_all(_priv->drm);
+ DRM_MODESET_LOCK_ALL_BEGIN((_priv->drm), ctx, 0, ret);
acomp->base.ops = _audio_component_ops;
acomp->base.dev = i915_kdev;
BUILD_BUG_ON(MAX_PORTS != I915_MAX_PORTS);
for (i = 0; i < ARRAY_SIZE(acomp->aud_sample_rate); i++)
acomp->aud_sample_rate[i] = 0;
dev_priv->audio_component = acomp;
- drm_modeset_unlock_all(_priv->drm);
+ DRM_MODESET_LOCK_ALL_END((_priv->drm), ctx, ret);
- return 0;
+ return ret;
}
static void i915_audio_component_unbind(struct device *i915_kdev,
@@ -1241,12 +1243,14 @@ static void i915_audio_component_unbind(struct device
*i915_kdev,
{
struct i915_audio_component *acomp = data;
struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev);
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
- drm_modeset_lock_all(_priv->drm);
+ DRM_MODESET_LOCK_ALL_BEGIN((_priv->drm), ctx, 0, ret);
acomp->base.ops = NULL;
acomp->base.dev = NULL;
dev_priv->audio_component = NULL;
- drm_modeset_unlock_all(_priv->drm);
+ DRM_MODESET_LOCK_ALL_END((_priv->drm), ctx, ret);
device_link_remove(hda_kdev, i915_kdev);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index 2bf01416d656..297359411c5f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12512,6 +12512,7 @@ int intel_modeset_init_noirq(struct drm_i915_private
*i915)
int intel_modeset_init_nogem(struct drm_i915_private *i915)
{
struct drm_device *dev = >drm;
+ struct drm_modeset_acquire_ctx ctx;
enum pipe pipe;
struct intel_crtc *crtc;
int ret;
@@ -12563,9 +12564,9 @@ int intel_modeset_init_nogem(struct drm_i915_private
*i915)
intel_vga_disable(i915);
intel_setup_outputs(i915);
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
intel_modeset_setup_hw_state(dev, dev->mode_config.acquire_ctx);
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
for_each_intel_crtc(dev, crtc) {
struct intel_initial_plane_config plane_config = {};
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 8fdacb252bb1..e0a6837996e7 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -5,6 +5,7 @@
#include
#include
+#include
#include "i915_debugfs.h"
#include "intel_display_debugfs.h"
@@ -1057,11 +1058,13 @@ static int i915_display_info(struct seq_file *m, void
*unused)
struct intel_crtc *crtc;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
+ struct drm_modeset_acquire_ctx ctx;
intel_wakeref_t wakeref;
+ int ret;
wakeref = intel_runtime_pm_get(_priv->runtime_pm);
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
seq_printf(m, "CRTC info\n");
seq_printf(m, "-\n");
@@ -1076,20 +1079,21 @@ static int i915_display_info(struct seq_file *m, void
*unused)
intel_connector_info(m, connector);
drm_connector_list_iter_end(_iter);
-
[Freedreno] [PATCH v2 07/17] drm/shmobile: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
---
drivers/gpu/drm/shmobile/shmob_drm_drv.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
index 7db01904d18d..8ee215ab614e 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
@@ -156,10 +156,12 @@ static int shmob_drm_pm_suspend(struct device *dev)
static int shmob_drm_pm_resume(struct device *dev)
{
struct shmob_drm_device *sdev = dev_get_drvdata(dev);
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
- drm_modeset_lock_all(sdev->ddev);
+ DRM_MODESET_LOCK_ALL_BEGIN(sdev->ddev, ctx, 0, ret);
shmob_drm_crtc_resume(>crtc);
- drm_modeset_unlock_all(sdev->ddev);
+ DRM_MODESET_LOCK_ALL_END(sdev->ddev, ctx, ret);
drm_kms_helper_poll_enable(sdev->ddev);
return 0;
--
2.33.0
[Freedreno] [PATCH v2 06/17] drm/tegra: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
Reported-by: kernel test robot
---
drivers/gpu/drm/tegra/dsi.c | 6 --
drivers/gpu/drm/tegra/hdmi.c | 6 --
drivers/gpu/drm/tegra/sor.c | 11 +++
3 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index f46d377f0c30..28050c188c1c 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -23,6 +23,7 @@
#include
#include
#include
+#include
#include "dc.h"
#include "drm.h"
@@ -202,10 +203,11 @@ static int tegra_dsi_show_regs(struct seq_file *s, void
*data)
struct tegra_dsi *dsi = node->info_ent->data;
struct drm_crtc *crtc = dsi->output.encoder.crtc;
struct drm_device *drm = node->minor->dev;
+ struct drm_modeset_acquire_ctx ctx;
unsigned int i;
int err = 0;
- drm_modeset_lock_all(drm);
+ DRM_MODESET_LOCK_ALL_BEGIN(drm, ctx, 0, err);
if (!crtc || !crtc->state->active) {
err = -EBUSY;
@@ -220,7 +222,7 @@ static int tegra_dsi_show_regs(struct seq_file *s, void
*data)
}
unlock:
- drm_modeset_unlock_all(drm);
+ DRM_MODESET_LOCK_ALL_END(drm, ctx, err);
return err;
}
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index e5d2a4026028..a62de7f92414 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -22,6 +22,7 @@
#include
#include
#include
+#include
#include "hda.h"
#include "hdmi.h"
@@ -1031,10 +1032,11 @@ static int tegra_hdmi_show_regs(struct seq_file *s,
void *data)
struct tegra_hdmi *hdmi = node->info_ent->data;
struct drm_crtc *crtc = hdmi->output.encoder.crtc;
struct drm_device *drm = node->minor->dev;
+ struct drm_modeset_acquire_ctx ctx;
unsigned int i;
int err = 0;
- drm_modeset_lock_all(drm);
+ DRM_MODESET_LOCK_ALL_BEGIN(drm, ctx, 0, err);
if (!crtc || !crtc->state->active) {
err = -EBUSY;
@@ -1049,7 +1051,7 @@ static int tegra_hdmi_show_regs(struct seq_file *s, void
*data)
}
unlock:
- drm_modeset_unlock_all(drm);
+ DRM_MODESET_LOCK_ALL_END(drm, ctx, err);
return err;
}
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 0ea320c1092b..3d1c8b3d1358 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -23,6 +23,7 @@
#include
#include
#include
+#include
#include "dc.h"
#include "dp.h"
@@ -1490,10 +1491,11 @@ static int tegra_sor_show_crc(struct seq_file *s, void
*data)
struct tegra_sor *sor = node->info_ent->data;
struct drm_crtc *crtc = sor->output.encoder.crtc;
struct drm_device *drm = node->minor->dev;
+ struct drm_modeset_acquire_ctx ctx;
int err = 0;
u32 value;
- drm_modeset_lock_all(drm);
+ DRM_MODESET_LOCK_ALL_BEGIN(drm, ctx, 0, err);
if (!crtc || !crtc->state->active) {
err = -EBUSY;
@@ -1522,7 +1524,7 @@ static int tegra_sor_show_crc(struct seq_file *s, void
*data)
seq_printf(s, "%08x\n", value);
unlock:
- drm_modeset_unlock_all(drm);
+ DRM_MODESET_LOCK_ALL_END(drm, ctx, err);
return err;
}
@@ -1652,10 +1654,11 @@ static int tegra_sor_show_regs(struct seq_file *s, void
*data)
struct tegra_sor *sor = node->info_ent->data;
struct drm_crtc *crtc = sor->output.encoder.crtc;
struct drm_device *drm = node->minor->dev;
+ struct drm_modeset_acquire_ctx ctx;
unsigned int i;
int err = 0;
- drm_modeset_lock_all(drm);
+ DRM_MODESET_LOCK_ALL_BEGIN(drm, ctx, 0, err);
if (!crtc || !crtc->state->active) {
err = -EBUSY;
@@ -1670,7 +1673,7 @@ static int tegra_sor_show_regs(struct seq_file *s, void
*data)
}
unlock:
- drm_modeset_unlock_all(drm);
+ DRM_MODESET_LOCK_ALL_END(drm, ctx, err);
return err;
}
--
2.33.0
[Freedreno] [PATCH v2 00/17] drm: cleanup: Use DRM_MODESET_LOCK_ALL_* helpers where possible
Hi all,
One of the things in the DRM TODO list ("Documentation/gpu/todo.rst") was to
"use DRM_MODESET_LOCAL_ALL_* helpers instead of boilerplate". That's what this
patch series is about.
You will find two types of changes here:
- Replacing "drm_modeset_lock_all_ctx()" (and surrounding boilerplate) with
"DRM_MODESET_LOCK_ALL_BEGIN()/END()" in the remaining places (as it has
already been done in previous commits such as b7ea04d2)
- Replacing "drm_modeset_lock_all()" with "DRM_MODESET_LOCK_ALL_BEGIN()/END()"
in the remaining places (as it has already been done in previous commits
such as 57037094)
Most of the changes are straight forward, except for a few cases in the "amd"
and "i915" drivers where some extra dancing was needed to overcome the
limitation that the DRM_MODESET_LOCK_ALL_BEGIN()/END() macros can only be used
once inside the same function (the reason being that the macro expansion
includes *labels*, and you can not have two labels named the same inside one
function)
Notice that, even after this patch series, some places remain where
"drm_modeset_lock_all()" and "drm_modeset_lock_all_ctx()" are still present,
all inside drm core (which makes sense), except for two (in "amd" and "i915")
which cannot be replaced due to the way they are being used.
Changes in v2:
- Fix commit message typo
- Use the value returned by DRM_MODESET_LOCK_ALL_END when possible
- Split drm/i915 patch into two simpler ones
- Remove drm_modeset_(un)lock_all()
- Fix build problems in non-x86 platforms
Fernando Ramos (17):
drm: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/i915: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/msm: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/vmwgfx: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/tegra: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/shmobile: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/radeon: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/omapdrm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/nouveau: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/msm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
part 2
drm/gma500: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm/amd: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
drm: cleanup: remove drm_modeset_(un)lock_all()
doc: drm: remove TODO entry regarding DRM_MODSET_LOCK_ALL cleanup
Documentation/gpu/todo.rst| 17
Documentation/locking/ww-mutex-design.rst | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 21 +++--
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 50 +-
.../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 25 ++---
drivers/gpu/drm/drm_client_modeset.c | 14 ++-
drivers/gpu/drm/drm_crtc_helper.c | 18 ++--
drivers/gpu/drm/drm_fb_helper.c | 10 +-
drivers/gpu/drm/drm_framebuffer.c | 6 +-
drivers/gpu/drm/drm_modeset_lock.c| 94 +--
drivers/gpu/drm/gma500/psb_device.c | 18 ++--
drivers/gpu/drm/i915/display/intel_audio.c| 16 ++--
drivers/gpu/drm/i915/display/intel_display.c | 23 ++---
.../drm/i915/display/intel_display_debugfs.c | 46 +
drivers/gpu/drm/i915/display/intel_overlay.c | 46 -
drivers/gpu/drm/i915/display/intel_pipe_crc.c | 7 +-
drivers/gpu/drm/i915/i915_drv.c | 13 ++-
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 10 +-
.../gpu/drm/msm/disp/msm_disp_snapshot_util.c | 12 +--
drivers/gpu/drm/nouveau/dispnv50/disp.c | 15 ++-
drivers/gpu/drm/omapdrm/omap_fb.c | 9 +-
drivers/gpu/drm/radeon/radeon_device.c| 21 +++--
drivers/gpu/drm/radeon/radeon_dp_mst.c| 10 +-
drivers/gpu/drm/shmobile/shmob_drm_drv.c | 6 +-
drivers/gpu/drm/tegra/dsi.c | 6 +-
drivers/gpu/drm/tegra/hdmi.c | 6 +-
drivers/gpu/drm/tegra/sor.c | 11 ++-
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 11 ++-
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 12 ++-
include/drm/drm_modeset_lock.h| 2 -
30 files changed, 265 insertions(+), 292 deletions(-)
base-commit: 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f
--
2.33.0
[Freedreno] [PATCH v2 05/17] drm/vmwgfx: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
---
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 11 +++
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 12
2 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index 28af34ab6ed6..7df35c6f1458 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -28,6 +28,7 @@
#include "vmwgfx_drv.h"
#include "vmwgfx_devcaps.h"
#include
+#include
#include "vmwgfx_kms.h"
int vmw_getparam_ioctl(struct drm_device *dev, void *data,
@@ -172,6 +173,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
struct drm_vmw_rect __user *clips_ptr;
struct drm_vmw_rect *clips = NULL;
struct drm_framebuffer *fb;
+ struct drm_modeset_acquire_ctx ctx;
struct vmw_framebuffer *vfb;
struct vmw_resource *res;
uint32_t num_clips;
@@ -203,7 +205,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
goto out_no_copy;
}
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
if (!fb) {
@@ -231,7 +233,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
out_no_surface:
drm_framebuffer_put(fb);
out_no_fb:
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
out_no_copy:
kfree(clips);
out_clips:
@@ -250,6 +252,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void
*data,
struct drm_vmw_rect __user *clips_ptr;
struct drm_vmw_rect *clips = NULL;
struct drm_framebuffer *fb;
+ struct drm_modeset_acquire_ctx ctx;
struct vmw_framebuffer *vfb;
uint32_t num_clips;
int ret;
@@ -280,7 +283,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void
*data,
goto out_no_copy;
}
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
if (!fb) {
@@ -303,7 +306,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void
*data,
out_no_ttm_lock:
drm_framebuffer_put(fb);
out_no_fb:
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
out_no_copy:
kfree(clips);
out_clips:
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 74fa41909213..268095cb8c84 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -33,6 +33,7 @@
#include
#include
#include
+#include
#include "vmwgfx_kms.h"
@@ -243,15 +244,17 @@ void vmw_kms_legacy_hotspot_clear(struct vmw_private
*dev_priv)
struct drm_device *dev = _priv->drm;
struct vmw_display_unit *du;
struct drm_crtc *crtc;
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_for_each_crtc(crtc, dev) {
du = vmw_crtc_to_du(crtc);
du->hotspot_x = 0;
du->hotspot_y = 0;
}
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
}
void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
@@ -1012,9 +1015,10 @@ static int vmw_framebuffer_bo_dirty(struct
drm_framebuffer *framebuffer,
struct vmw_framebuffer_bo *vfbd =
vmw_framebuffer_to_vfbd(framebuffer);
struct drm_clip_rect norect;
+ struct drm_modeset_acquire_ctx ctx;
int ret, increment = 1;
- drm_modeset_lock_all(_priv->drm);
+ DRM_MODESET_LOCK_ALL_BEGIN((_priv->drm), ctx, 0, ret);
if (!num_clips) {
num_clips = 1;
@@ -1040,7 +1044,7 @@ static int vmw_framebuffer_bo_dirty(struct
drm_framebuffer *framebuffer,
vmw_cmd_flush(dev_priv, false);
- drm_modeset_unlock_all(_priv->drm);
+ DRM_MODESET_LOCK_ALL_END((_priv->drm), ctx, ret);
return ret;
}
--
2.33.0
[Freedreno] [PATCH v2 01/17] drm: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace the boilerplate code surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN() and DRM_MODESET_LOCK_ALL_END() Signed-off-by: Fernando Ramos --- drivers/gpu/drm/drm_client_modeset.c | 9 +++-- 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c index ced09c7c06f9..5f5184f071ed 100644 --- a/drivers/gpu/drm/drm_client_modeset.c +++ b/drivers/gpu/drm/drm_client_modeset.c @@ -574,6 +574,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, int num_connectors_detected = 0; int num_tiled_conns = 0; struct drm_modeset_acquire_ctx ctx; + int err; if (!drm_drv_uses_atomic_modeset(dev)) return false; @@ -585,10 +586,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, if (!save_enabled) return false; - drm_modeset_acquire_init(, 0); - - while (drm_modeset_lock_all_ctx(dev, ) != 0) - drm_modeset_backoff(); + DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, err); memcpy(save_enabled, enabled, count); mask = GENMASK(count - 1, 0); @@ -743,8 +741,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, ret = false; } - drm_modeset_drop_locks(); - drm_modeset_acquire_fini(); + DRM_MODESET_LOCK_ALL_END(dev, ctx, err); kfree(save_enabled); return ret; -- 2.33.0
[Freedreno] [PATCH v2 03/17] drm/msm: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace the boilerplate code
surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()
and DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
Reported-by: kernel test robot
---
drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
index cabe15190ec1..abda52f09b09 100644
--- a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
+++ b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
@@ -5,6 +5,8 @@
#define pr_fmt(fmt)"[drm:%s:%d] " fmt, __func__, __LINE__
+#include
+
#include "msm_disp_snapshot.h"
static void msm_disp_state_dump_regs(u32 **reg, u32 aligned_len, void __iomem
*base_addr)
@@ -99,20 +101,18 @@ static void msm_disp_capture_atomic_state(struct
msm_disp_state *disp_state)
{
struct drm_device *ddev;
struct drm_modeset_acquire_ctx ctx;
+ int ret;
disp_state->timestamp = ktime_get();
ddev = disp_state->drm_dev;
- drm_modeset_acquire_init(, 0);
-
- while (drm_modeset_lock_all_ctx(ddev, ) != 0)
- drm_modeset_backoff();
+ DRM_MODESET_LOCK_ALL_BEGIN(ddev, ctx, 0, ret);
disp_state->atomic_state = drm_atomic_helper_duplicate_state(ddev,
);
- drm_modeset_drop_locks();
- drm_modeset_acquire_fini();
+
+ DRM_MODESET_LOCK_ALL_END(ddev, ctx, ret);
}
void msm_disp_snapshot_capture_state(struct msm_disp_state *disp_state)
--
2.33.0
[Freedreno] [PATCH v2 17/17] doc: drm: remove TODO entry regarding DRM_MODSET_LOCK_ALL cleanup
The previous commits do exactly what this entry in the TODO file asks for, thus we can remove it now as it is no longer applicable. Signed-off-by: Fernando Ramos Reviewed-by: Sean Paul --- Documentation/gpu/todo.rst| 17 - Documentation/locking/ww-mutex-design.rst | 2 +- 2 files changed, 1 insertion(+), 18 deletions(-) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 12e61869939e..6613543955e9 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -353,23 +353,6 @@ converted, except for struct drm_driver.gem_prime_mmap. Level: Intermediate -Use DRM_MODESET_LOCK_ALL_* helpers instead of boilerplate -- - -For cases where drivers are attempting to grab the modeset locks with a local -acquire context. Replace the boilerplate code surrounding -drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN() and -DRM_MODESET_LOCK_ALL_END() instead. - -This should also be done for all places where drm_modeset_lock_all() is still -used. - -As a reference, take a look at the conversions already completed in drm core. - -Contact: Sean Paul, respective driver maintainers - -Level: Starter - Rename CMA helpers to DMA helpers - diff --git a/Documentation/locking/ww-mutex-design.rst b/Documentation/locking/ww-mutex-design.rst index 6a4d7319f8f0..6a8f8beb9ec4 100644 --- a/Documentation/locking/ww-mutex-design.rst +++ b/Documentation/locking/ww-mutex-design.rst @@ -60,7 +60,7 @@ Concepts Compared to normal mutexes two additional concepts/objects show up in the lock interface for w/w mutexes: -Acquire context: To ensure eventual forward progress it is important the a task +Acquire context: To ensure eventual forward progress it is important that a task trying to acquire locks doesn't grab a new reservation id, but keeps the one it acquired when starting the lock acquisition. This ticket is stored in the acquire context. Furthermore the acquire context keeps track of debugging state -- 2.33.0
[Freedreno] [PATCH v2 08/17] drm/radeon: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
---
drivers/gpu/drm/radeon/radeon_device.c | 21 +++--
drivers/gpu/drm/radeon/radeon_dp_mst.c | 10 ++
2 files changed, 21 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_device.c
b/drivers/gpu/drm/radeon/radeon_device.c
index 4f0fbf667431..7e31e5ce7f61 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -37,6 +37,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -1559,7 +1560,8 @@ int radeon_suspend_kms(struct drm_device *dev, bool
suspend,
struct pci_dev *pdev;
struct drm_crtc *crtc;
struct drm_connector *connector;
- int i, r;
+ struct drm_modeset_acquire_ctx ctx;
+ int i, r, ret;
if (dev == NULL || dev->dev_private == NULL) {
return -ENODEV;
@@ -1573,12 +1575,15 @@ int radeon_suspend_kms(struct drm_device *dev, bool
suspend,
drm_kms_helper_poll_disable(dev);
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
/* turn off display hw */
list_for_each_entry(connector, >mode_config.connector_list, head) {
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
}
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ if (ret)
+ return ret;
/* unpin the front buffers and cursors */
list_for_each_entry(crtc, >mode_config.crtc_list, head) {
@@ -1663,7 +1668,8 @@ int radeon_resume_kms(struct drm_device *dev, bool
resume, bool fbcon)
struct radeon_device *rdev = dev->dev_private;
struct pci_dev *pdev = to_pci_dev(dev->dev);
struct drm_crtc *crtc;
- int r;
+ struct drm_modeset_acquire_ctx ctx;
+ int r, ret;
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
@@ -1741,11 +1747,14 @@ int radeon_resume_kms(struct drm_device *dev, bool
resume, bool fbcon)
if (fbcon) {
drm_helper_resume_force_mode(dev);
/* turn on display hw */
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
list_for_each_entry(connector,
>mode_config.connector_list, head) {
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
}
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ if (ret)
+ return ret;
}
drm_kms_helper_poll_enable(dev);
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c
b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index ec867fa880a4..3f83ee75b100 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -4,6 +4,7 @@
#include
#include
#include
+#include
#include "atom.h"
#include "ni_reg.h"
@@ -737,11 +738,12 @@ static int radeon_debugfs_mst_info_show(struct seq_file
*m, void *unused)
struct radeon_device *rdev = (struct radeon_device *)m->private;
struct drm_device *dev = rdev->ddev;
struct drm_connector *connector;
+ struct drm_modeset_acquire_ctx ctx;
struct radeon_connector *radeon_connector;
struct radeon_connector_atom_dig *dig_connector;
- int i;
+ int i, ret;
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
list_for_each_entry(connector, >mode_config.connector_list, head) {
if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
continue;
@@ -759,8 +761,8 @@ static int radeon_debugfs_mst_info_show(struct seq_file *m,
void *unused)
radeon_connector->cur_stream_attribs[i].fe,
radeon_connector->cur_stream_attribs[i].slots);
}
- drm_modeset_unlock_all(dev);
- return 0;
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+ return ret;
}
DEFINE_SHOW_ATTRIBUTE(radeon_debugfs_mst_info);
--
2.33.0
[Freedreno] [PATCH v2 09/17] drm/omapdrm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
---
drivers/gpu/drm/omapdrm/omap_fb.c | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c
b/drivers/gpu/drm/omapdrm/omap_fb.c
index 190afc564914..fa7636c13c19 100644
--- a/drivers/gpu/drm/omapdrm/omap_fb.c
+++ b/drivers/gpu/drm/omapdrm/omap_fb.c
@@ -9,6 +9,7 @@
#include
#include
#include
+#include
#include "omap_dmm_tiler.h"
#include "omap_drv.h"
@@ -62,15 +63,17 @@ static int omap_framebuffer_dirty(struct drm_framebuffer
*fb,
unsigned num_clips)
{
struct drm_crtc *crtc;
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
- drm_modeset_lock_all(fb->dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, 0, ret);
drm_for_each_crtc(crtc, fb->dev)
omap_crtc_flush(crtc);
- drm_modeset_unlock_all(fb->dev);
+ DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret);
- return 0;
+ return ret;
}
static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
--
2.33.0
[Freedreno] [PATCH v2 02/17] drm/i915: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace the boilerplate code
surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()
and DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
---
drivers/gpu/drm/i915/display/intel_display.c | 18 +-
1 file changed, 5 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index 134a6acbd8fb..2bf01416d656 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -43,6 +43,7 @@
#include
#include
#include
+#include
#include "display/intel_audio.h"
#include "display/intel_crt.h"
@@ -13476,22 +13477,13 @@ void intel_display_resume(struct drm_device *dev)
if (state)
state->acquire_ctx =
- drm_modeset_acquire_init(, 0);
-
- while (1) {
- ret = drm_modeset_lock_all_ctx(dev, );
- if (ret != -EDEADLK)
- break;
-
- drm_modeset_backoff();
- }
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
- if (!ret)
- ret = __intel_display_resume(dev, state, );
+ ret = __intel_display_resume(dev, state, );
intel_enable_ipc(dev_priv);
- drm_modeset_drop_locks();
- drm_modeset_acquire_fini();
+
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
if (ret)
drm_err(_priv->drm,
--
2.33.0
[Freedreno] [PATCH v2 13/17] drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN() part 2
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
While the previous commit was a simple "search and replace", this time I
had to do a bit of refactoring as only one call to
DRM_MODESET_LOCK_ALL_BEGIN() is allowed inside one same function.
Signed-off-by: Fernando Ramos
---
drivers/gpu/drm/i915/display/intel_overlay.c | 40 ++--
1 file changed, 19 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c
b/drivers/gpu/drm/i915/display/intel_overlay.c
index c0ee135e5499..c623738c59c8 100644
--- a/drivers/gpu/drm/i915/display/intel_overlay.c
+++ b/drivers/gpu/drm/i915/display/intel_overlay.c
@@ -1105,6 +1105,7 @@ int intel_overlay_put_image_ioctl(struct drm_device *dev,
void *data,
struct drm_crtc *drmmode_crtc;
struct intel_crtc *crtc;
struct drm_i915_gem_object *new_bo;
+ struct drm_modeset_acquire_ctx ctx;
int ret;
overlay = dev_priv->overlay;
@@ -1113,24 +1114,24 @@ int intel_overlay_put_image_ioctl(struct drm_device
*dev, void *data,
return -ENODEV;
}
- if (!(params->flags & I915_OVERLAY_ENABLE)) {
- drm_modeset_lock_all(dev);
- ret = intel_overlay_switch_off(overlay);
- drm_modeset_unlock_all(dev);
+ if (params->flags & I915_OVERLAY_ENABLE) {
- return ret;
- }
+ drmmode_crtc = drm_crtc_find(dev, file_priv, params->crtc_id);
+ if (!drmmode_crtc)
+ return -ENOENT;
+ crtc = to_intel_crtc(drmmode_crtc);
- drmmode_crtc = drm_crtc_find(dev, file_priv, params->crtc_id);
- if (!drmmode_crtc)
- return -ENOENT;
- crtc = to_intel_crtc(drmmode_crtc);
+ new_bo = i915_gem_object_lookup(file_priv, params->bo_handle);
+ if (!new_bo)
+ return -ENOENT;
+ }
- new_bo = i915_gem_object_lookup(file_priv, params->bo_handle);
- if (!new_bo)
- return -ENOENT;
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
- drm_modeset_lock_all(dev);
+ if (!(params->flags & I915_OVERLAY_ENABLE)) {
+ ret = intel_overlay_switch_off(overlay);
+ goto out_unlock;
+ }
if (i915_gem_object_is_tiled(new_bo)) {
drm_dbg_kms(_priv->drm,
@@ -1195,14 +1196,11 @@ int intel_overlay_put_image_ioctl(struct drm_device
*dev, void *data,
if (ret != 0)
goto out_unlock;
- drm_modeset_unlock_all(dev);
- i915_gem_object_put(new_bo);
-
- return 0;
-
out_unlock:
- drm_modeset_unlock_all(dev);
- i915_gem_object_put(new_bo);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ if (params->flags & I915_OVERLAY_ENABLE)
+ i915_gem_object_put(new_bo);
return ret;
}
--
2.33.0
[Freedreno] [PATCH v2 16/17] drm: cleanup: remove drm_modeset_(un)lock_all()
Functions drm_modeset_lock_all() and drm_modeset_unlock_all() are no
longer used anywhere and can be removed.
Signed-off-by: Fernando Ramos
---
drivers/gpu/drm/drm_modeset_lock.c | 94 +-
include/drm/drm_modeset_lock.h | 2 -
2 files changed, 3 insertions(+), 93 deletions(-)
diff --git a/drivers/gpu/drm/drm_modeset_lock.c
b/drivers/gpu/drm/drm_modeset_lock.c
index fcfe1a03c4a1..afd1351749a5 100644
--- a/drivers/gpu/drm/drm_modeset_lock.c
+++ b/drivers/gpu/drm/drm_modeset_lock.c
@@ -77,93 +77,6 @@
static DEFINE_WW_CLASS(crtc_ww_class);
-/**
- * drm_modeset_lock_all - take all modeset locks
- * @dev: DRM device
- *
- * This function takes all modeset locks, suitable where a more fine-grained
- * scheme isn't (yet) implemented. Locks must be dropped by calling the
- * drm_modeset_unlock_all() function.
- *
- * This function is deprecated. It allocates a lock acquisition context and
- * stores it in _device.mode_config. This facilitate conversion of
- * existing code because it removes the need to manually deal with the
- * acquisition context, but it is also brittle because the context is global
- * and care must be taken not to nest calls. New code should use the
- * drm_modeset_lock_all_ctx() function and pass in the context explicitly.
- */
-void drm_modeset_lock_all(struct drm_device *dev)
-{
- struct drm_mode_config *config = >mode_config;
- struct drm_modeset_acquire_ctx *ctx;
- int ret;
-
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL | __GFP_NOFAIL);
- if (WARN_ON(!ctx))
- return;
-
- mutex_lock(>mutex);
-
- drm_modeset_acquire_init(ctx, 0);
-
-retry:
- ret = drm_modeset_lock_all_ctx(dev, ctx);
- if (ret < 0) {
- if (ret == -EDEADLK) {
- drm_modeset_backoff(ctx);
- goto retry;
- }
-
- drm_modeset_acquire_fini(ctx);
- kfree(ctx);
- return;
- }
- ww_acquire_done(>ww_ctx);
-
- WARN_ON(config->acquire_ctx);
-
- /*
-* We hold the locks now, so it is safe to stash the acquisition
-* context for drm_modeset_unlock_all().
-*/
- config->acquire_ctx = ctx;
-
- drm_warn_on_modeset_not_all_locked(dev);
-}
-EXPORT_SYMBOL(drm_modeset_lock_all);
-
-/**
- * drm_modeset_unlock_all - drop all modeset locks
- * @dev: DRM device
- *
- * This function drops all modeset locks taken by a previous call to the
- * drm_modeset_lock_all() function.
- *
- * This function is deprecated. It uses the lock acquisition context stored
- * in _device.mode_config. This facilitates conversion of existing
- * code because it removes the need to manually deal with the acquisition
- * context, but it is also brittle because the context is global and care must
- * be taken not to nest calls. New code should pass the acquisition context
- * directly to the drm_modeset_drop_locks() function.
- */
-void drm_modeset_unlock_all(struct drm_device *dev)
-{
- struct drm_mode_config *config = >mode_config;
- struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx;
-
- if (WARN_ON(!ctx))
- return;
-
- config->acquire_ctx = NULL;
- drm_modeset_drop_locks(ctx);
- drm_modeset_acquire_fini(ctx);
-
- kfree(ctx);
-
- mutex_unlock(>mode_config.mutex);
-}
-EXPORT_SYMBOL(drm_modeset_unlock_all);
-
/**
* drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
* @dev: device
@@ -380,10 +293,9 @@ EXPORT_SYMBOL(drm_modeset_unlock);
* This function takes all modeset locks, suitable where a more fine-grained
* scheme isn't (yet) implemented.
*
- * Unlike drm_modeset_lock_all(), it doesn't take the _mode_config.mutex
- * since that lock isn't required for modeset state changes. Callers which
- * need to grab that lock too need to do so outside of the acquire context
- * @ctx.
+ * It doesn't take the _mode_config.mutex since that lock isn't required
for
+ * modeset state changes. Callers which need to grab that lock too need to do
so
+ * outside of the acquire context @ctx.
*
* Locks acquired with this function should be released by calling the
* drm_modeset_drop_locks() function on @ctx.
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index aafd07388eb7..865e64bcc4cb 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -132,8 +132,6 @@ struct drm_device;
struct drm_crtc;
struct drm_plane;
-void drm_modeset_lock_all(struct drm_device *dev);
-void drm_modeset_unlock_all(struct drm_device *dev);
void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
int drm_modeset_lock_all_ctx(struct drm_device *dev,
--
2.33.0
[Freedreno] [PATCH v2 11/17] drm/msm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and DRM_MODESET_LOCK_ALL_END() Signed-off-by: Fernando Ramos --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 10 ++ 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 768012243b44..b89687074890 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "dpu_kms.h" #include "dpu_hw_lm.h" @@ -1172,14 +1173,15 @@ static int _dpu_debugfs_status_show(struct seq_file *s, void *data) struct drm_display_mode *mode; struct drm_framebuffer *fb; struct drm_plane_state *state; + struct drm_modeset_acquire_ctx ctx; struct dpu_crtc_state *cstate; - int i, out_width; + int i, out_width, ret; dpu_crtc = s->private; crtc = _crtc->base; - drm_modeset_lock_all(crtc->dev); + DRM_MODESET_LOCK_ALL_BEGIN(crtc->dev, ctx, 0, ret); cstate = to_dpu_crtc_state(crtc->state); mode = >state->adjusted_mode; @@ -1263,9 +1265,9 @@ static int _dpu_debugfs_status_show(struct seq_file *s, void *data) dpu_crtc->vblank_cb_time = ktime_set(0, 0); } - drm_modeset_unlock_all(crtc->dev); + DRM_MODESET_LOCK_ALL_END(crtc->dev, ctx, ret); - return 0; + return ret; } DEFINE_SHOW_ATTRIBUTE(_dpu_debugfs_status); -- 2.33.0
[Freedreno] [PATCH v2 14/17] drm/gma500: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
---
drivers/gpu/drm/gma500/psb_device.c | 18 --
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/gma500/psb_device.c
b/drivers/gpu/drm/gma500/psb_device.c
index 951725a0f7a3..98d06736dbaa 100644
--- a/drivers/gpu/drm/gma500/psb_device.c
+++ b/drivers/gpu/drm/gma500/psb_device.c
@@ -8,6 +8,7 @@
#include
#include
+#include
#include "gma_device.h"
#include "intel_bios.h"
@@ -169,8 +170,10 @@ static int psb_save_display_registers(struct drm_device
*dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc;
+ struct drm_modeset_acquire_ctx ctx;
struct gma_connector *connector;
struct psb_state *regs = _priv->regs.psb;
+ int ret;
/* Display arbitration control + watermarks */
regs->saveDSPARB = PSB_RVDC32(DSPARB);
@@ -183,7 +186,7 @@ static int psb_save_display_registers(struct drm_device
*dev)
regs->saveCHICKENBIT = PSB_RVDC32(DSPCHICKENBIT);
/* Save crtc and output state */
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
list_for_each_entry(crtc, >mode_config.crtc_list, head) {
if (drm_helper_crtc_in_use(crtc))
dev_priv->ops->save_crtc(crtc);
@@ -193,8 +196,9 @@ static int psb_save_display_registers(struct drm_device
*dev)
if (connector->save)
connector->save(>base);
- drm_modeset_unlock_all(dev);
- return 0;
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ return ret;
}
/**
@@ -207,8 +211,10 @@ static int psb_restore_display_registers(struct drm_device
*dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc;
+ struct drm_modeset_acquire_ctx ctx;
struct gma_connector *connector;
struct psb_state *regs = _priv->regs.psb;
+ int ret;
/* Display arbitration + watermarks */
PSB_WVDC32(regs->saveDSPARB, DSPARB);
@@ -223,7 +229,7 @@ static int psb_restore_display_registers(struct drm_device
*dev)
/*make sure VGA plane is off. it initializes to on after reset!*/
PSB_WVDC32(0x8000, VGACNTRL);
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
list_for_each_entry(crtc, >mode_config.crtc_list, head)
if (drm_helper_crtc_in_use(crtc))
dev_priv->ops->restore_crtc(crtc);
@@ -232,8 +238,8 @@ static int psb_restore_display_registers(struct drm_device
*dev)
if (connector->restore)
connector->restore(>base);
- drm_modeset_unlock_all(dev);
- return 0;
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+ return ret;
}
static int psb_power_down(struct drm_device *dev)
--
2.33.0
[Freedreno] [PATCH v2 15/17] drm/amd: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 21 +---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 50 +--
.../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 25 ++
3 files changed, 53 insertions(+), 43 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 7a7316731911..b07e845a2600 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -40,6 +40,7 @@
#include
#include
#include
+#include
static void amdgpu_display_flip_callback(struct dma_fence *f,
struct dma_fence_cb *cb)
@@ -1543,16 +1544,21 @@ int amdgpu_display_suspend_helper(struct amdgpu_device
*adev)
struct drm_crtc *crtc;
struct drm_connector *connector;
struct drm_connector_list_iter iter;
- int r;
+ struct drm_modeset_acquire_ctx ctx;
+ int r, ret;
/* turn off display hw */
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_connector_list_iter_begin(dev, );
drm_for_each_connector_iter(connector, )
drm_helper_connector_dpms(connector,
DRM_MODE_DPMS_OFF);
drm_connector_list_iter_end();
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ if (ret)
+ return ret;
+
/* unpin the front buffers and cursors */
list_for_each_entry(crtc, >mode_config.crtc_list, head) {
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
@@ -1590,7 +1596,8 @@ int amdgpu_display_resume_helper(struct amdgpu_device
*adev)
struct drm_connector *connector;
struct drm_connector_list_iter iter;
struct drm_crtc *crtc;
- int r;
+ struct drm_modeset_acquire_ctx ctx;
+ int r, ret;
/* pin cursors */
list_for_each_entry(crtc, >mode_config.crtc_list, head) {
@@ -1612,7 +1619,7 @@ int amdgpu_display_resume_helper(struct amdgpu_device
*adev)
drm_helper_resume_force_mode(dev);
/* turn on display hw */
- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_connector_list_iter_begin(dev, );
drm_for_each_connector_iter(connector, )
@@ -1620,8 +1627,8 @@ int amdgpu_display_resume_helper(struct amdgpu_device
*adev)
DRM_MODE_DPMS_ON);
drm_connector_list_iter_end();
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
- return 0;
+ return ret;
}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 9b1fc54555ee..5196c1d26f87 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -80,6 +80,7 @@
#include
#include
#include
+#include
#if defined(CONFIG_DRM_AMD_DC_DCN)
#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
@@ -2621,6 +2622,9 @@ static void handle_hpd_irq(void *param)
#ifdef CONFIG_DRM_AMD_DC_HDCP
struct dm_connector_state *dm_con_state =
to_dm_connector_state(connector->state);
#endif
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
+
if (adev->dm.disable_hpd_irq)
return;
@@ -2646,14 +2650,6 @@ static void handle_hpd_irq(void *param)
if (aconnector->base.force && new_connection_type ==
dc_connection_none) {
emulated_link_detect(aconnector->dc_link);
-
- drm_modeset_lock_all(dev);
- dm_restore_drm_connector_state(dev, connector);
- drm_modeset_unlock_all(dev);
-
- if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
- drm_kms_helper_hotplug_event(dev);
-
} else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
if (new_connection_type == dc_connection_none &&
aconnector->dc_link->type == dc_connection_none)
@@ -2661,13 +2657,18 @@ static void handle_hpd_irq(void *param)
amdgpu_dm_update_connector_after_detect(aconnector);
- drm_modeset_lock_all(dev);
- dm_restore_drm_connector_state(dev, connector);
- drm_modeset_unlock_all(dev);
-
- if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
- drm_kms_helper_hotplug_event(dev);
+ } else {
+ goto out;
}
+
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
+ dm_restore_drm_connector_state(dev, connector);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ if
[Freedreno] [PATCH v2 10/17] drm/nouveau: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos
Reviewed-by: Sean Paul
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 15 ++-
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c
b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index d7b9f7f8c9e3..86e18a844953 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -42,6 +42,7 @@
#include
#include
#include
+#include
#include
@@ -667,16 +668,18 @@ nv50_audio_component_bind(struct device *kdev, struct
device *hda_kdev,
struct drm_device *drm_dev = dev_get_drvdata(kdev);
struct nouveau_drm *drm = nouveau_drm(drm_dev);
struct drm_audio_component *acomp = data;
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
if (WARN_ON(!device_link_add(hda_kdev, kdev, DL_FLAG_STATELESS)))
return -ENOMEM;
- drm_modeset_lock_all(drm_dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(drm_dev, ctx, 0, ret);
acomp->ops = _audio_component_ops;
acomp->dev = kdev;
drm->audio.component = acomp;
- drm_modeset_unlock_all(drm_dev);
- return 0;
+ DRM_MODESET_LOCK_ALL_END(drm_dev, ctx, ret);
+ return ret;
}
static void
@@ -686,12 +689,14 @@ nv50_audio_component_unbind(struct device *kdev, struct
device *hda_kdev,
struct drm_device *drm_dev = dev_get_drvdata(kdev);
struct nouveau_drm *drm = nouveau_drm(drm_dev);
struct drm_audio_component *acomp = data;
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;
- drm_modeset_lock_all(drm_dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(drm_dev, ctx, 0, ret);
drm->audio.component = NULL;
acomp->ops = NULL;
acomp->dev = NULL;
- drm_modeset_unlock_all(drm_dev);
+ DRM_MODESET_LOCK_ALL_END(drm_dev, ctx, ret);
}
static const struct component_ops nv50_audio_component_bind_ops = {
--
2.33.0
