Displaying 11 results from an estimated 11 matches for "div_s64".
2020 Jan 10
2
[PATCH 03/23] drm/i915: Don't use struct drm_driver.get_scanout_position()
...precision error. */
> + *max_error = duration_ns;
> +
> + /* Convert scanout position into elapsed time at raw_time query
> + * since start of scanout at first display scanline. delta_ns
> + * can be negative if start of scanout hasn't happened yet.
> + */
> + delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
> + mode->crtc_clock);
> +
> + /* Subtract time delta from raw timestamp to get final
> + * vblank_time timestamp for end of vblank.
> + */
> + *vblank_time = ktime_sub_ns(etime, delta_ns);
> +
> + if (!drm_debug_en...
2020 Jan 10
0
[PATCH 03/23] drm/i915: Don't use struct drm_driver.get_scanout_position()
.../* Return upper bound of timestamp precision error. */
+ *max_error = duration_ns;
+
+ /* Convert scanout position into elapsed time at raw_time query
+ * since start of scanout at first display scanline. delta_ns
+ * can be negative if start of scanout hasn't happened yet.
+ */
+ delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
+ mode->crtc_clock);
+
+ /* Subtract time delta from raw timestamp to get final
+ * vblank_time timestamp for end of vblank.
+ */
+ *vblank_time = ktime_sub_ns(etime, delta_ns);
+
+ if (!drm_debug_enabled(DRM_UT_VBL))
+ return true;
+
+ t...
2020 Jan 10
0
[PATCH 03/23] drm/i915: Don't use struct drm_driver.get_scanout_position()
...+ *max_error = duration_ns;
>> +
>> + /* Convert scanout position into elapsed time at raw_time query
>> + * since start of scanout at first display scanline. delta_ns
>> + * can be negative if start of scanout hasn't happened yet.
>> + */
>> + delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
>> + mode->crtc_clock);
>> +
>> + /* Subtract time delta from raw timestamp to get final
>> + * vblank_time timestamp for end of vblank.
>> + */
>> + *vblank_time = ktime_sub_ns(etime, delta_ns);
>>...
2020 Jan 10
1
[PATCH 03/23] drm/i915: Don't use struct drm_driver.get_scanout_position()
..._ns;
>>> +
>>> + /* Convert scanout position into elapsed time at raw_time query
>>> + * since start of scanout at first display scanline. delta_ns
>>> + * can be negative if start of scanout hasn't happened yet.
>>> + */
>>> + delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
>>> + mode->crtc_clock);
>>> +
>>> + /* Subtract time delta from raw timestamp to get final
>>> + * vblank_time timestamp for end of vblank.
>>> + */
>>> + *vblank_time = ktime_sub_ns(e...
2020 Jan 15
2
[Intel-gfx] [PATCH v2 03/21] drm: Add get_vblank_timestamp() to struct drm_crtc_funcs
...precision error. */
> + *max_error = duration_ns;
> +
> + /* Convert scanout position into elapsed time at raw_time query
> + * since start of scanout at first display scanline. delta_ns
> + * can be negative if start of scanout hasn't happened yet.
> + */
> + delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
> + mode->crtc_clock);
> +
> + /* Subtract time delta from raw timestamp to get final
> + * vblank_time timestamp for end of vblank.
> + */
> + *vblank_time = ktime_sub_ns(etime, delta_ns);
> +
> + if (!drm_debug_en...
2020 Jan 15
0
[PATCH v2 03/21] drm: Add get_vblank_timestamp() to struct drm_crtc_funcs
.../* Return upper bound of timestamp precision error. */
+ *max_error = duration_ns;
+
+ /* Convert scanout position into elapsed time at raw_time query
+ * since start of scanout at first display scanline. delta_ns
+ * can be negative if start of scanout hasn't happened yet.
+ */
+ delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
+ mode->crtc_clock);
+
+ /* Subtract time delta from raw timestamp to get final
+ * vblank_time timestamp for end of vblank.
+ */
+ *vblank_time = ktime_sub_ns(etime, delta_ns);
+
+ if (!drm_debug_enabled(DRM_UT_VBL))
+ return true;
+
+ t...
2020 Jan 16
0
[Intel-gfx] [PATCH v2 03/21] drm: Add get_vblank_timestamp() to struct drm_crtc_funcs
...+ *max_error = duration_ns;
>> +
>> + /* Convert scanout position into elapsed time at raw_time query
>> + * since start of scanout at first display scanline. delta_ns
>> + * can be negative if start of scanout hasn't happened yet.
>> + */
>> + delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
>> + mode->crtc_clock);
>> +
>> + /* Subtract time delta from raw timestamp to get final
>> + * vblank_time timestamp for end of vblank.
>> + */
>> + *vblank_time = ktime_sub_ns(etime, delta_ns);
>>...
2020 Jan 15
26
[PATCH v2 00/21] drm: Clean up VBLANK callbacks in struct drm_driver
VBLANK handlers in struct drm_driver are deprecated. Only legacy,
non-KMS drivers are supposed to used them. DRM drivers with kernel
modesetting are supposed to use VBLANK callbacks of the CRTC
infrastructure.
This patchset converts all DRM drivers to CRTC VBLANK callbacks and
cleans up struct drm_driver. The remaining VBLANK callbacks in struct
drm_driver are only used by legacy drivers.
2020 Jan 10
36
[PATCH 00/23] drm: Clean up VBLANK callbacks in struct drm_driver
VBLANK handlers in struct drm_driver are deprecated. Only legacy,
non-KMS drivers are supposed to used them. DRM drivers with kernel
modesetting are supposed to use VBLANK callbacks of the CRTC
infrastructure.
This patchset converts all DRM drivers to CRTC VBLANK callbacks and
cleans up struct drm_driver. The remaining VBLANK callbacks in struct
drm_driver are only used by legacy drivers.
2020 Jul 21
17
[PATCH 00/10] RFC: move logical block size checking to the block core
This patch series aims to move the logical block size checking to the
block code.
This was inspired by missing check for valid logical block size in
virtio-blk which causes the kernel to crash in a weird way later on
when it is invalid.
I added blk_is_valid_logical_block_size which returns true iff the
block size is one of supported sizes.
I added this check to virtio-blk, and also converted
2020 Jul 21
17
[PATCH 00/10] RFC: move logical block size checking to the block core
This patch series aims to move the logical block size checking to the
block code.
This was inspired by missing check for valid logical block size in
virtio-blk which causes the kernel to crash in a weird way later on
when it is invalid.
I added blk_is_valid_logical_block_size which returns true iff the
block size is one of supported sizes.
I added this check to virtio-blk, and also converted