[PATCH 1/3] intel: sanitize i915_drm.h

[PATCH 1/3] intel: sanitize i915_drm.h

[Ben Widawsky]

run make headers_isntall on d-i-n, copy to here

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 include/drm/i915_drm.h |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index af3ce17..725a8de 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -33,6 +33,7 @@
  * subject to backwards-compatibility constraints.
  */
 
+
 /* Each region is a minimum of 16k, and there are at most 255 of them.
  */
 #define I915_NR_TEX_REGIONS 255	/* table size 2k - maximum due to use
@@ -287,7 +288,8 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_EXEC_CONSTANTS	 14
 #define I915_PARAM_HAS_RELAXED_DELTA	 15
 #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
-#define I915_PARAM_HAS_LLC		 17
+#define I915_PARAM_HAS_LLC     	 	 17
+#define I915_PARAM_HAS_ALIASING_PPGTT	 18
 
 typedef struct drm_i915_getparam {
 	int param;
-- 
1.7.10.3

[PATCH 2/3] intel: wait render header updates

[Ben Widawsky]

make headers_install in kernel. Copy to here.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 include/drm/i915_drm.h |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 725a8de..1881f8a 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -192,6 +192,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_I915_GEM_EXECBUFFER2	0x29
 #define DRM_I915_GET_SPRITE_COLORKEY	0x2a
 #define DRM_I915_SET_SPRITE_COLORKEY	0x2b
+#define DRM_I915_GEM_WAIT	0x2c
 
 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -235,6 +236,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_IOCTL_I915_OVERLAY_ATTRS	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
 #define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
 #define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
+#define DRM_IOCTL_I915_GEM_WAIT		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_WAIT, struct drm_i915_gem_wait)
 
 /* Allow drivers to submit batchbuffers directly to hardware, relying
  * on the security mechanisms provided by hardware.
@@ -290,6 +292,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
 #define I915_PARAM_HAS_LLC     	 	 17
 #define I915_PARAM_HAS_ALIASING_PPGTT	 18
+#define I915_PARAM_HAS_WAIT_TIMEOUT	 19
 
 typedef struct drm_i915_getparam {
 	int param;
@@ -878,4 +881,12 @@ struct drm_intel_sprite_colorkey {
 	__u32 flags;
 };
 
+struct drm_i915_gem_wait {
+	/** Handle of BO we shall wait on */
+	__u32 bo_handle;
+	__u32 flags;
+	/** Number of nanoseconds to wait, Returns time remaining. */
+	__u64 timeout_ns;
+};
+
 #endif				/* _I915_DRM_H_ */
-- 
1.7.10.3

[PATCH 2/3] intel: wait render header updates

[Ben Widawsky]

make headers_install in kernel. Copy to here.

v2: signed ns_timeout

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 include/drm/i915_drm.h |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 725a8de..4931107 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -192,6 +192,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_I915_GEM_EXECBUFFER2	0x29
 #define DRM_I915_GET_SPRITE_COLORKEY	0x2a
 #define DRM_I915_SET_SPRITE_COLORKEY	0x2b
+#define DRM_I915_GEM_WAIT	0x2c
 
 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -235,6 +236,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_IOCTL_I915_OVERLAY_ATTRS	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
 #define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
 #define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
+#define DRM_IOCTL_I915_GEM_WAIT		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_WAIT, struct drm_i915_gem_wait)
 
 /* Allow drivers to submit batchbuffers directly to hardware, relying
  * on the security mechanisms provided by hardware.
@@ -290,6 +292,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
 #define I915_PARAM_HAS_LLC     	 	 17
 #define I915_PARAM_HAS_ALIASING_PPGTT	 18
+#define I915_PARAM_HAS_WAIT_TIMEOUT	 19
 
 typedef struct drm_i915_getparam {
 	int param;
@@ -878,4 +881,12 @@ struct drm_intel_sprite_colorkey {
 	__u32 flags;
 };
 
+struct drm_i915_gem_wait {
+	/** Handle of BO we shall wait on */
+	__u32 bo_handle;
+	__u32 flags;
+	/** Number of nanoseconds to wait, Returns time remaining. */
+	__s64 timeout_ns;
+};
+
 #endif				/* _I915_DRM_H_ */
-- 
1.7.10.3

Re: [PATCH 2/3] intel: wait render header updates

[Ben Widawsky]

On Tue,  5 Jun 2012 15:42:39 -0700
Ben Widawsky <ben@bwidawsk.net> wrote:

> make headers_install in kernel. Copy to here.
> 
> v2: signed ns_timeout
> 
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

This has been pushed with IRC
Acked-by Kenneth Graunke <kenneth@whitecape.org>

> ---
>  include/drm/i915_drm.h |   11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
> index 725a8de..4931107 100644
> --- a/include/drm/i915_drm.h
> +++ b/include/drm/i915_drm.h
> @@ -192,6 +192,7 @@ typedef struct _drm_i915_sarea {
>  #define DRM_I915_GEM_EXECBUFFER2	0x29
>  #define DRM_I915_GET_SPRITE_COLORKEY	0x2a
>  #define DRM_I915_SET_SPRITE_COLORKEY	0x2b
> +#define DRM_I915_GEM_WAIT	0x2c
>  
>  #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
>  #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
> @@ -235,6 +236,7 @@ typedef struct _drm_i915_sarea {
>  #define DRM_IOCTL_I915_OVERLAY_ATTRS	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
>  #define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
>  #define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
> +#define DRM_IOCTL_I915_GEM_WAIT		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_WAIT, struct drm_i915_gem_wait)
>  
>  /* Allow drivers to submit batchbuffers directly to hardware, relying
>   * on the security mechanisms provided by hardware.
> @@ -290,6 +292,7 @@ typedef struct drm_i915_irq_wait {
>  #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
>  #define I915_PARAM_HAS_LLC     	 	 17
>  #define I915_PARAM_HAS_ALIASING_PPGTT	 18
> +#define I915_PARAM_HAS_WAIT_TIMEOUT	 19
>  
>  typedef struct drm_i915_getparam {
>  	int param;
> @@ -878,4 +881,12 @@ struct drm_intel_sprite_colorkey {
>  	__u32 flags;
>  };
>  
> +struct drm_i915_gem_wait {
> +	/** Handle of BO we shall wait on */
> +	__u32 bo_handle;
> +	__u32 flags;
> +	/** Number of nanoseconds to wait, Returns time remaining. */
> +	__s64 timeout_ns;
> +};
> +
>  #endif				/* _I915_DRM_H_ */



-- 
Ben Widawsky, Intel Open Source Technology Center

[PATCH 3/3] intel: wait render timeout implementation

[Ben Widawsky]

int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)

This should bump the libdrm version. We're waiting for context support
so we can do both features in one bump.

v2: don't return remaining timeout amount
use get param and fallback for older kernels

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 intel/intel_bufmgr.h     |    1 +
 intel/intel_bufmgr_gem.c |   29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
index c197abc..10ccc25 100644
--- a/intel/intel_bufmgr.h
+++ b/intel/intel_bufmgr.h
@@ -184,6 +184,7 @@ int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id);
 
 int drm_intel_get_aperture_sizes(int fd, size_t *mappable, size_t *total);
 int drm_intel_bufmgr_gem_get_devid(drm_intel_bufmgr *bufmgr);
+int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns);
 
 /* drm_intel_bufmgr_fake.c */
 drm_intel_bufmgr *drm_intel_bufmgr_fake_init(int fd,
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index b776d2f..78aec08 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -1479,6 +1479,35 @@ drm_intel_gem_bo_wait_rendering(drm_intel_bo *bo)
 }
 
 /**
+ * Same as drm_intel_gem_bo_wait_rendering except a timeout parameter allows the
+ * operation to give up after a certain amount of time.
+ *
+ * A 0 return value implies that the wait was successful. Otherwise some
+ * negative return value describes the error.
+ */
+int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)
+{
+	drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
+	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
+	struct drm_i915_gem_wait wait;
+	int ret, val = 0;
+	struct drm_i915_getparam gp = {I915_PARAM_HAS_WAIT_TIMEOUT, &val};
+
+	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
+	if (!ret || !val) {
+		DBG("Wait timeout not supported by kernel. "
+		    "Falling back to unconstrained wait\n");
+		drm_intel_gem_bo_wait_rendering(bo);
+		return 0;
+	}
+
+	wait.bo_handle = bo_gem->gem_handle;
+	wait.timeout_ns = timeout_ns;
+	wait.flags = 0;
+	return drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_WAIT, &wait);
+}
+
+/**
  * Sets the object to the GTT read and possibly write domain, used by the X
  * 2D driver in the absence of kernel support to do drm_intel_gem_bo_map_gtt().
  *
-- 
1.7.10.3

[PATCH 3/3] intel: wait render timeout implementation

[Ben Widawsky]

int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)

This should bump the libdrm version. We're waiting for context support
so we can do both features in one bump.

v2: don't return remaining timeout amount
use get param and fallback for older kernels

v3: only doing getparam at init

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 intel/intel_bufmgr.h     |    1 +
 intel/intel_bufmgr_gem.c |   30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
index c197abc..10ccc25 100644
--- a/intel/intel_bufmgr.h
+++ b/intel/intel_bufmgr.h
@@ -184,6 +184,7 @@ int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id);
 
 int drm_intel_get_aperture_sizes(int fd, size_t *mappable, size_t *total);
 int drm_intel_bufmgr_gem_get_devid(drm_intel_bufmgr *bufmgr);
+int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns);
 
 /* drm_intel_bufmgr_fake.c */
 drm_intel_bufmgr *drm_intel_bufmgr_fake_init(int fd,
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index b776d2f..b780ab9 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -119,6 +119,7 @@ typedef struct _drm_intel_bufmgr_gem {
 	unsigned int has_blt : 1;
 	unsigned int has_relaxed_fencing : 1;
 	unsigned int has_llc : 1;
+	unsigned int has_wait_timeout : 1;
 	unsigned int bo_reuse : 1;
 	unsigned int no_exec : 1;
 	bool fenced_relocs;
@@ -1479,6 +1480,31 @@ drm_intel_gem_bo_wait_rendering(drm_intel_bo *bo)
 }
 
 /**
+ * Same as drm_intel_gem_bo_wait_rendering except a timeout parameter allows the
+ * operation to give up after a certain amount of time.
+ *
+ * A 0 return value implies that the wait was successful. Otherwise some
+ * negative return value describes the error.
+ */
+int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)
+{
+	drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
+	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
+	struct drm_i915_gem_wait wait;
+	int ret;
+
+	if (!bufmgr_gem->has_wait_timeout) {
+		drm_intel_gem_bo_wait_rendering(bo);
+		return 0;
+	}
+
+	wait.bo_handle = bo_gem->gem_handle;
+	wait.timeout_ns = timeout_ns;
+	wait.flags = 0;
+	return drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_WAIT, &wait);
+}
+
+/**
  * Sets the object to the GTT read and possibly write domain, used by the X
  * 2D driver in the absence of kernel support to do drm_intel_gem_bo_map_gtt().
  *
@@ -2898,6 +2924,10 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
 	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
 	bufmgr_gem->has_relaxed_fencing = ret == 0;
 
+	gp.param = I915_PARAM_HAS_WAIT_TIMEOUT;
+	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
+	bufmgr_gem->has_wait_timeout = ret == 0;
+
 	gp.param = I915_PARAM_HAS_LLC;
 	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
 	if (ret != 0) {
-- 
1.7.10.3

[PATCH 3/3] intel: wait render timeout implementation

[Ben Widawsky]

int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)

This should bump the libdrm version. We're waiting for context support
so we can do both features in one bump.

v2: don't return remaining timeout amount
use get param and fallback for older kernels

v3: only doing getparam at init
prototypes now have a signed input value

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 intel/intel_bufmgr.h     |    1 +
 intel/intel_bufmgr_gem.c |   30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
index c197abc..fa6c4dd 100644
--- a/intel/intel_bufmgr.h
+++ b/intel/intel_bufmgr.h
@@ -184,6 +184,7 @@ int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id);
 
 int drm_intel_get_aperture_sizes(int fd, size_t *mappable, size_t *total);
 int drm_intel_bufmgr_gem_get_devid(drm_intel_bufmgr *bufmgr);
+int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns);
 
 /* drm_intel_bufmgr_fake.c */
 drm_intel_bufmgr *drm_intel_bufmgr_fake_init(int fd,
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index b776d2f..048fca7 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -119,6 +119,7 @@ typedef struct _drm_intel_bufmgr_gem {
 	unsigned int has_blt : 1;
 	unsigned int has_relaxed_fencing : 1;
 	unsigned int has_llc : 1;
+	unsigned int has_wait_timeout : 1;
 	unsigned int bo_reuse : 1;
 	unsigned int no_exec : 1;
 	bool fenced_relocs;
@@ -1479,6 +1480,31 @@ drm_intel_gem_bo_wait_rendering(drm_intel_bo *bo)
 }
 
 /**
+ * Same as drm_intel_gem_bo_wait_rendering except a timeout parameter allows the
+ * operation to give up after a certain amount of time.
+ *
+ * A 0 return value implies that the wait was successful. Otherwise some
+ * negative return value describes the error.
+ */
+int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns)
+{
+	drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
+	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
+	struct drm_i915_gem_wait wait;
+	int ret;
+
+	if (!bufmgr_gem->has_wait_timeout) {
+		drm_intel_gem_bo_wait_rendering(bo);
+		return 0;
+	}
+
+	wait.bo_handle = bo_gem->gem_handle;
+	wait.timeout_ns = timeout_ns;
+	wait.flags = 0;
+	return drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_WAIT, &wait);
+}
+
+/**
  * Sets the object to the GTT read and possibly write domain, used by the X
  * 2D driver in the absence of kernel support to do drm_intel_gem_bo_map_gtt().
  *
@@ -2898,6 +2924,10 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
 	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
 	bufmgr_gem->has_relaxed_fencing = ret == 0;
 
+	gp.param = I915_PARAM_HAS_WAIT_TIMEOUT;
+	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
+	bufmgr_gem->has_wait_timeout = ret == 0;
+
 	gp.param = I915_PARAM_HAS_LLC;
 	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
 	if (ret != 0) {
-- 
1.7.10.3

Re: [PATCH 3/3] intel: wait render timeout implementation

[Daniel Vetter]

On Tue, Jun 05, 2012 at 03:43:07PM -0700, Ben Widawsky wrote:
> int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)
> 
> This should bump the libdrm version. We're waiting for context support
> so we can do both features in one bump.
> 
> v2: don't return remaining timeout amount
> use get param and fallback for older kernels
> 
> v3: only doing getparam at init
> prototypes now have a signed input value
> 
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

Let's bikeshed this some more ;-)
- I think a quick comment to say that negative timeouts result in a
  infinite wait would be nice.
- If we want to keep timeout=0 means polling, you need to add a special
  case in the fallback to check for that and call the busy ioctl instead
  (and remap the business value to the correct return value).
- iirc drmIoctl doesn't return the kernels -ERRNO value in it's retval
  (and shovels it into errno instead). I think undoing that suckiness
  would be good, so that we return -ETIME if the timer expired.

Yours, Daniel
> ---
>  intel/intel_bufmgr.h     |    1 +
>  intel/intel_bufmgr_gem.c |   30 ++++++++++++++++++++++++++++++
>  2 files changed, 31 insertions(+)
> 
> diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
> index c197abc..fa6c4dd 100644
> --- a/intel/intel_bufmgr.h
> +++ b/intel/intel_bufmgr.h
> @@ -184,6 +184,7 @@ int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id);
>  
>  int drm_intel_get_aperture_sizes(int fd, size_t *mappable, size_t *total);
>  int drm_intel_bufmgr_gem_get_devid(drm_intel_bufmgr *bufmgr);
> +int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns);
>  
>  /* drm_intel_bufmgr_fake.c */
>  drm_intel_bufmgr *drm_intel_bufmgr_fake_init(int fd,
> diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
> index b776d2f..048fca7 100644
> --- a/intel/intel_bufmgr_gem.c
> +++ b/intel/intel_bufmgr_gem.c
> @@ -119,6 +119,7 @@ typedef struct _drm_intel_bufmgr_gem {
>  	unsigned int has_blt : 1;
>  	unsigned int has_relaxed_fencing : 1;
>  	unsigned int has_llc : 1;
> +	unsigned int has_wait_timeout : 1;
>  	unsigned int bo_reuse : 1;
>  	unsigned int no_exec : 1;
>  	bool fenced_relocs;
> @@ -1479,6 +1480,31 @@ drm_intel_gem_bo_wait_rendering(drm_intel_bo *bo)
>  }
>  
>  /**
> + * Same as drm_intel_gem_bo_wait_rendering except a timeout parameter allows the
> + * operation to give up after a certain amount of time.
> + *
> + * A 0 return value implies that the wait was successful. Otherwise some
> + * negative return value describes the error.
> + */
> +int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns)
> +{
> +	drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
> +	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
> +	struct drm_i915_gem_wait wait;
> +	int ret;
> +
> +	if (!bufmgr_gem->has_wait_timeout) {
> +		drm_intel_gem_bo_wait_rendering(bo);
> +		return 0;
> +	}
> +
> +	wait.bo_handle = bo_gem->gem_handle;
> +	wait.timeout_ns = timeout_ns;
> +	wait.flags = 0;
> +	return drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_WAIT, &wait);
> +}
> +
> +/**
>   * Sets the object to the GTT read and possibly write domain, used by the X
>   * 2D driver in the absence of kernel support to do drm_intel_gem_bo_map_gtt().
>   *
> @@ -2898,6 +2924,10 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
>  	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
>  	bufmgr_gem->has_relaxed_fencing = ret == 0;
>  
> +	gp.param = I915_PARAM_HAS_WAIT_TIMEOUT;
> +	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
> +	bufmgr_gem->has_wait_timeout = ret == 0;
> +
>  	gp.param = I915_PARAM_HAS_LLC;
>  	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
>  	if (ret != 0) {
> -- 
> 1.7.10.3
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48

Re: [PATCH 3/3] intel: wait render timeout implementation

[Ben Widawsky]

On Wed, 6 Jun 2012 11:33:21 +0200
Daniel Vetter <daniel@ffwll.ch> wrote:

> On Tue, Jun 05, 2012 at 03:43:07PM -0700, Ben Widawsky wrote:
> > int drm_intel_gem_bo_wait(drm_intel_bo *bo, uint64_t timeout_ns)
> > 
> > This should bump the libdrm version. We're waiting for context support
> > so we can do both features in one bump.
> > 
> > v2: don't return remaining timeout amount
> > use get param and fallback for older kernels
> > 
> > v3: only doing getparam at init
> > prototypes now have a signed input value
> > 
> > Cc: Chris Wilson <chris@chris-wilson.co.uk>
> > Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
> 
> Let's bikeshed this some more ;-)
> - I think a quick comment to say that negative timeouts result in a
>   infinite wait would be nice.
> - If we want to keep timeout=0 means polling, you need to add a special
>   case in the fallback to check for that and call the busy ioctl instead
>   (and remap the business value to the correct return value).
> - iirc drmIoctl doesn't return the kernels -ERRNO value in it's retval
>   (and shovels it into errno instead). I think undoing that suckiness
>   would be good, so that we return -ETIME if the timer expired.

All these are very good points which were lost when dropping the return
time in the v2 patch. I consider none of these bikesheds at all.

Thanks.
Ben

> 
> Yours, Daniel
> > ---
> >  intel/intel_bufmgr.h     |    1 +
> >  intel/intel_bufmgr_gem.c |   30 ++++++++++++++++++++++++++++++
> >  2 files changed, 31 insertions(+)
> > 
> > diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
> > index c197abc..fa6c4dd 100644
> > --- a/intel/intel_bufmgr.h
> > +++ b/intel/intel_bufmgr.h
> > @@ -184,6 +184,7 @@ int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id);
> >  
> >  int drm_intel_get_aperture_sizes(int fd, size_t *mappable, size_t *total);
> >  int drm_intel_bufmgr_gem_get_devid(drm_intel_bufmgr *bufmgr);
> > +int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns);
> >  
> >  /* drm_intel_bufmgr_fake.c */
> >  drm_intel_bufmgr *drm_intel_bufmgr_fake_init(int fd,
> > diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
> > index b776d2f..048fca7 100644
> > --- a/intel/intel_bufmgr_gem.c
> > +++ b/intel/intel_bufmgr_gem.c
> > @@ -119,6 +119,7 @@ typedef struct _drm_intel_bufmgr_gem {
> >  	unsigned int has_blt : 1;
> >  	unsigned int has_relaxed_fencing : 1;
> >  	unsigned int has_llc : 1;
> > +	unsigned int has_wait_timeout : 1;
> >  	unsigned int bo_reuse : 1;
> >  	unsigned int no_exec : 1;
> >  	bool fenced_relocs;
> > @@ -1479,6 +1480,31 @@ drm_intel_gem_bo_wait_rendering(drm_intel_bo *bo)
> >  }
> >  
> >  /**
> > + * Same as drm_intel_gem_bo_wait_rendering except a timeout parameter allows the
> > + * operation to give up after a certain amount of time.
> > + *
> > + * A 0 return value implies that the wait was successful. Otherwise some
> > + * negative return value describes the error.
> > + */
> > +int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns)
> > +{
> > +	drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
> > +	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
> > +	struct drm_i915_gem_wait wait;
> > +	int ret;
> > +
> > +	if (!bufmgr_gem->has_wait_timeout) {
> > +		drm_intel_gem_bo_wait_rendering(bo);
> > +		return 0;
> > +	}
> > +
> > +	wait.bo_handle = bo_gem->gem_handle;
> > +	wait.timeout_ns = timeout_ns;
> > +	wait.flags = 0;
> > +	return drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_WAIT, &wait);
> > +}
> > +
> > +/**
> >   * Sets the object to the GTT read and possibly write domain, used by the X
> >   * 2D driver in the absence of kernel support to do drm_intel_gem_bo_map_gtt().
> >   *
> > @@ -2898,6 +2924,10 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
> >  	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
> >  	bufmgr_gem->has_relaxed_fencing = ret == 0;
> >  
> > +	gp.param = I915_PARAM_HAS_WAIT_TIMEOUT;
> > +	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
> > +	bufmgr_gem->has_wait_timeout = ret == 0;
> > +
> >  	gp.param = I915_PARAM_HAS_LLC;
> >  	ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
> >  	if (ret != 0) {
> > -- 
> > 1.7.10.3
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/dri-devel
> 



-- 
Ben Widawsky, Intel Open Source Technology Center

Re: [PATCH 1/3] intel: sanitize i915_drm.h

[Ben Widawsky]

On Tue,  5 Jun 2012 11:58:11 -0700
Ben Widawsky <ben@bwidawsk.net> wrote:

> run make headers_isntall on d-i-n, copy to here
> 
> Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

This has been pushed with IRC
Acked-by Kenneth Graunke <kenneth@whitecape.org>



> ---
>  include/drm/i915_drm.h |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
> index af3ce17..725a8de 100644
> --- a/include/drm/i915_drm.h
> +++ b/include/drm/i915_drm.h
> @@ -33,6 +33,7 @@
>   * subject to backwards-compatibility constraints.
>   */
>  
> +
>  /* Each region is a minimum of 16k, and there are at most 255 of them.
>   */
>  #define I915_NR_TEX_REGIONS 255	/* table size 2k - maximum due to use
> @@ -287,7 +288,8 @@ typedef struct drm_i915_irq_wait {
>  #define I915_PARAM_HAS_EXEC_CONSTANTS	 14
>  #define I915_PARAM_HAS_RELAXED_DELTA	 15
>  #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
> -#define I915_PARAM_HAS_LLC		 17
> +#define I915_PARAM_HAS_LLC     	 	 17
> +#define I915_PARAM_HAS_ALIASING_PPGTT	 18
>  
>  typedef struct drm_i915_getparam {
>  	int param;



-- 
Ben Widawsky, Intel Open Source Technology Center

-- 
Ben Widawsky, Intel Open Source Technology Center