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Link: https://lore.kernel.org/all/20230630100059.122881-1-thomas.hellstrom@linux.intel.com Signed-off-by: Rodrigo Vivi Reviewed-by: Lucas De Marchi Acked-by: Daniel Vetter --- Documentation/gpu/rfc/xe.rst | 6 ------ 1 file changed, 6 deletions(-) diff --git a/Documentation/gpu/rfc/xe.rst b/Documentation/gpu/rfc/xe.rst index 2516fe141db6..3d2181bf3dad 100644 --- a/Documentation/gpu/rfc/xe.rst +++ b/Documentation/gpu/rfc/xe.rst @@ -67,12 +67,6 @@ platforms. When the time comes for Xe, the protection will be lifted on Xe and kept in i915. -Xe driver will be protected with both STAGING Kconfig and force_probe. Changes in -the uAPI are expected while the driver is behind these protections. STAGING will -be removed when the driver uAPI gets to a mature state where we can guarantee the -‘no regression’ rule. Then force_probe will be lifted only for future platforms -that will be productized with Xe driver, but not with i915. - Xe – Pre-Merge Goals ==================== From patchwork Tue Aug 29 16:30:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Rodrigo Vivi X-Patchwork-Id: 13369215 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 18755C6FA8F for ; Tue, 29 Aug 2023 16:33:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5B1DF10E442; Tue, 29 Aug 2023 16:33:49 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1299010E442; 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Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/blob/drm-xe-next/drivers/gpu/drm/xe/xe_devcoredump.c Signed-off-by: Rodrigo Vivi --- Documentation/gpu/rfc/xe.rst | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/Documentation/gpu/rfc/xe.rst b/Documentation/gpu/rfc/xe.rst index 3d2181bf3dad..bf60c5c82d0e 100644 --- a/Documentation/gpu/rfc/xe.rst +++ b/Documentation/gpu/rfc/xe.rst @@ -67,8 +67,8 @@ platforms. When the time comes for Xe, the protection will be lifted on Xe and kept in i915. -Xe – Pre-Merge Goals -==================== +Xe – Pre-Merge Goals - Work-in-Progress +======================================= Drm_scheduler ------------- @@ -206,6 +206,14 @@ This item ties into the GPUVA, VM_BIND, and even long-running compute support. As a key measurable result, we need to have a community consensus documented in this document and the Xe driver prepared for the changes, if necessary. +Xe – uAPI high level overview +============================= + +...Warning: To be done in follow up patches after/when/where the main consensus in various items are individually reached. + +Xe – Pre-Merge Goals - Completed +================================ + Dev_coredump ------------ @@ -222,8 +230,3 @@ Later, when we are in-tree, the goal is to collaborate with devcoredump infrastructure with overall possible improvements, like multiple file support for better organization of the dumps, snapshot support, dmesg extra print, and whatever may make sense and help the overall infrastructure. - -Xe – uAPI high level overview -============================= - -...Warning: To be done in follow up patches after/when/where the main consensus in various items are individually reached. 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The merged GPUVA documentation also establish some overall rules for the locking to be followed by the drivers. Signed-off-by: Rodrigo Vivi Acked-by: Danilo Krummrich --- Documentation/gpu/rfc/xe.rst | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/Documentation/gpu/rfc/xe.rst b/Documentation/gpu/rfc/xe.rst index bf60c5c82d0e..a115526c03e0 100644 --- a/Documentation/gpu/rfc/xe.rst +++ b/Documentation/gpu/rfc/xe.rst @@ -106,23 +106,6 @@ our tree. Missing Nouveau patches should *not* block Xe and any needed GPUVA related patch should be independent and present on dri-devel or acked by maintainers to go along with the first Xe pull request towards drm-next. -DRM_VM_BIND ------------ -Nouveau, and Xe are all implementing ‘VM_BIND’ and new ‘Exec’ uAPIs in order to -fulfill the needs of the modern uAPI. Xe merge should *not* be blocked on the -development of a common new drm_infrastructure. However, the Xe team needs to -engage with the community to explore the options of a common API. - -As a key measurable result, the DRM_VM_BIND needs to be documented in this file -below, or this entire block deleted if the consensus is for independent drivers -vm_bind ioctls. - -Although having a common DRM level IOCTL for VM_BIND is not a requirement to get -Xe merged, it is mandatory to enforce the overall locking scheme for all major -structs and list (so vm and vma). So, a consensus is needed, and possibly some -common helpers. If helpers are needed, they should be also documented in this -document. - ASYNC VM_BIND ------------- Although having a common DRM level IOCTL for VM_BIND is not a requirement to get @@ -230,3 +213,20 @@ Later, when we are in-tree, the goal is to collaborate with devcoredump infrastructure with overall possible improvements, like multiple file support for better organization of the dumps, snapshot support, dmesg extra print, and whatever may make sense and help the overall infrastructure. + +DRM_VM_BIND +----------- +Nouveau, and Xe are all implementing ‘VM_BIND’ and new ‘Exec’ uAPIs in order to +fulfill the needs of the modern uAPI. Xe merge should *not* be blocked on the +development of a common new drm_infrastructure. However, the Xe team needs to +engage with the community to explore the options of a common API. + +As a key measurable result, the DRM_VM_BIND needs to be documented in this file +below, or this entire block deleted if the consensus is for independent drivers +vm_bind ioctls. + +Although having a common DRM level IOCTL for VM_BIND is not a requirement to get +Xe merged, it is mandatory to enforce the overall locking scheme for all major +structs and list (so vm and vma). So, a consensus is needed, and possibly some +common helpers. If helpers are needed, they should be also documented in this +document. 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Signed-off-by: Rodrigo Vivi Acked-by: Danilo Krummrich --- Documentation/gpu/rfc/xe.rst | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/Documentation/gpu/rfc/xe.rst b/Documentation/gpu/rfc/xe.rst index a115526c03e0..b67f8e6a1825 100644 --- a/Documentation/gpu/rfc/xe.rst +++ b/Documentation/gpu/rfc/xe.rst @@ -88,24 +88,6 @@ depend on any other patch touching drm_scheduler itself that was not yet merged through drm-misc. This, by itself, already includes the reach of an agreement for uniform 1 to 1 relationship implementation / usage across drivers. -GPU VA ------- -Two main goals of Xe are meeting together here: - -1) Have an uAPI that aligns with modern UMD needs. - -2) Early upstream engagement. - -RedHat engineers working on Nouveau proposed a new DRM feature to handle keeping -track of GPU virtual address mappings. This is still not merged upstream, but -this aligns very well with our goals and with our VM_BIND. The engagement with -upstream and the port of Xe towards GPUVA is already ongoing. - -As a key measurable result, Xe needs to be aligned with the GPU VA and working in -our tree. Missing Nouveau patches should *not* block Xe and any needed GPUVA -related patch should be independent and present on dri-devel or acked by -maintainers to go along with the first Xe pull request towards drm-next. - ASYNC VM_BIND ------------- Although having a common DRM level IOCTL for VM_BIND is not a requirement to get @@ -230,3 +212,21 @@ Xe merged, it is mandatory to enforce the overall locking scheme for all major structs and list (so vm and vma). So, a consensus is needed, and possibly some common helpers. If helpers are needed, they should be also documented in this document. + +GPU VA +------ +Two main goals of Xe are meeting together here: + +1) Have an uAPI that aligns with modern UMD needs. + +2) Early upstream engagement. + +RedHat engineers working on Nouveau proposed a new DRM feature to handle keeping +track of GPU virtual address mappings. This is still not merged upstream, but +this aligns very well with our goals and with our VM_BIND. The engagement with +upstream and the port of Xe towards GPUVA is already ongoing. + +As a key measurable result, Xe needs to be aligned with the GPU VA and working in +our tree. Missing Nouveau patches should *not* block Xe and any needed GPUVA +related patch should be independent and present on dri-devel or acked by +maintainers to go along with the first Xe pull request towards drm-next.