From: Brian Ho <brian@brkho.com>
To: freedreno@lists.freedesktop.org
Cc: robdclark@chromium.org, Brian Ho <brian@brkho.com>,
"open list:DRM DRIVER FOR MSM ADRENO GPU"
<linux-arm-msm@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
"open list:DRM DRIVER FOR MSM ADRENO GPU"
<dri-devel@lists.freedesktop.org>,
hoegsberg@chromium.org
Subject: [PATCH 0/2] drm/msm: Add the MSM_WAIT_IOVA ioctl
Date: Mon, 13 Jan 2020 10:36:03 -0500 [thread overview]
Message-ID: <20200113153605.52350-1-brian@brkho.com> (raw)
This patch set implements the MSM_WAIT_IOVA ioctl which lets
userspace sleep until the value at a given iova reaches a certain
condition. This is needed in turnip to implement the
VK_QUERY_RESULT_WAIT_BIT flag for vkGetQueryPoolResults.
First, we add a GPU-wide wait queue that is signaled on all IRQs.
We can then wait on this wait queue inside MSM_WAIT_IOVA until the
condition is met.
The corresponding merge request in mesa can be found at:
https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3279
Brian Ho (2):
drm/msm: Add a GPU-wide wait queue
drm/msm: Add MSM_WAIT_IOVA ioctl
drivers/gpu/drm/msm/msm_drv.c | 63 +++++++++++++++++++++++++++++++++--
drivers/gpu/drm/msm/msm_gpu.c | 4 +++
drivers/gpu/drm/msm/msm_gpu.h | 3 ++
include/uapi/drm/msm_drm.h | 13 ++++++++
4 files changed, 81 insertions(+), 2 deletions(-)
--
2.25.0.rc1.283.g88dfdc4193-goog
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next reply other threads:[~2020-01-14 8:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-13 15:36 Brian Ho [this message]
2020-01-13 15:36 ` [PATCH 1/2] drm/msm: Add a GPU-wide wait queue Brian Ho
2020-01-13 17:55 ` [Freedreno] " Jordan Crouse
2020-01-13 18:23 ` Rob Clark
2020-01-13 15:36 ` [PATCH 2/2] drm/msm: Add MSM_WAIT_IOVA ioctl Brian Ho
2020-01-13 16:25 ` Rob Clark
2020-01-13 17:57 ` Kristian Kristensen
2020-01-13 22:55 ` Brian Ho
2020-01-13 23:17 ` Rob Clark
2020-01-14 0:45 ` [Freedreno] " Kristian Høgsberg
2020-01-14 16:40 ` Brian Ho
2020-01-14 16:48 ` Rob Clark
2020-01-14 17:45 ` Brian Ho
2020-01-13 17:51 ` [Freedreno] " Jordan Crouse
2020-01-13 18:21 ` Rob Clark
2020-01-14 16:52 ` Rob Clark
2020-01-14 17:23 ` Jordan Crouse
2020-01-14 17:30 ` Kristian Kristensen
2020-01-14 18:05 ` Jordan Crouse
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