From 720f63a838731d25ab34c306db59c12834ce09b4 Mon Sep 17 00:00:00 2001 From: Sai Teja Pottumuttu Date: Thu, 5 Dec 2024 09:49:13 +0530 Subject: drm/xe/oa/uapi: Make OA buffer size configurable Add a new property called DRM_XE_OA_PROPERTY_OA_BUFFER_SIZE to allow OA buffer size to be configurable from userspace. With this OA buffer size can be configured to any power of 2 size between 128KB and 128MB and it would default to 16MB in case the size is not supplied. v2: - Rebase v3: - Add oa buffer size to capabilities [Ashutosh] - Address several nitpicks [Ashutosh] - Fix commit message/subject [Ashutosh] BSpec: 61100, 61228 Signed-off-by: Sai Teja Pottumuttu Reviewed-by: Ashutosh Dixit Signed-off-by: Ashutosh Dixit Link: https://patchwork.freedesktop.org/patch/msgid/20241205041913.883767-2-sai.teja.pottumuttu@intel.com --- include/uapi/drm/xe_drm.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h index 4a8a4a63e99c..0383b52cbd86 100644 --- a/include/uapi/drm/xe_drm.h +++ b/include/uapi/drm/xe_drm.h @@ -1486,6 +1486,7 @@ struct drm_xe_oa_unit { __u64 capabilities; #define DRM_XE_OA_CAPS_BASE (1 << 0) #define DRM_XE_OA_CAPS_SYNCS (1 << 1) +#define DRM_XE_OA_CAPS_OA_BUFFER_SIZE (1 << 2) /** @oa_timestamp_freq: OA timestamp freq */ __u64 oa_timestamp_freq; @@ -1651,6 +1652,14 @@ enum drm_xe_oa_property_id { * to the VM bind case. */ DRM_XE_OA_PROPERTY_SYNCS, + + /** + * @DRM_XE_OA_PROPERTY_OA_BUFFER_SIZE: Size of OA buffer to be + * allocated by the driver in bytes. Supported sizes are powers of + * 2 from 128 KiB to 128 MiB. When not specified, a 16 MiB OA + * buffer is allocated by default. + */ + DRM_XE_OA_PROPERTY_OA_BUFFER_SIZE, }; /** -- cgit v1.2.3