This is a note to let you know that I've just added the patch titled
drm/xe/oa: Allow only certain property changes from config
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-xe-oa-allow-only-certain-property-changes-from-c.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5244ca209dfa52405ab68f2d75567fe59233732d
Author: Ashutosh Dixit <ashutosh.dixit@xxxxxxxxx>
Date: Tue Oct 22 13:03:52 2024 -0700
drm/xe/oa: Allow only certain property changes from config
[ Upstream commit 85d3f9e84e0628c412b69aa99b63654dfa08ad68 ]
Whereas all properties can be specified during OA stream open, when the OA
stream is reconfigured only the config_id and syncs can be specified.
v2: Use separate function table for reconfig case (Jonathan)
Change bool function args to enum (Matt B)
v3: s/xe_oa_set_property_funcs/xe_oa_set_property_funcs_open/ (Jonathan)
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
Suggested-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20241022200352.1192560-8-ashutosh.dixit@xxxxxxxxx
Stable-dep-of: 5bd566703e16 ("drm/xe/oa: Allow oa_exponent value of 0")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c
index 78f662fd197c4..210b8bae59102 100644
--- a/drivers/gpu/drm/xe/xe_oa.c
+++ b/drivers/gpu/drm/xe/xe_oa.c
@@ -47,6 +47,11 @@ enum xe_oa_submit_deps {
XE_OA_SUBMIT_ADD_DEPS,
};
+enum xe_oa_user_extn_from {
+ XE_OA_USER_EXTN_FROM_OPEN,
+ XE_OA_USER_EXTN_FROM_CONFIG,
+};
+
struct xe_oa_reg {
struct xe_reg addr;
u32 value;
@@ -1205,9 +1210,15 @@ static int xe_oa_set_prop_syncs_user(struct xe_oa *oa, u64 value,
return 0;
}
+static int xe_oa_set_prop_ret_inval(struct xe_oa *oa, u64 value,
+ struct xe_oa_open_param *param)
+{
+ return -EINVAL;
+}
+
typedef int (*xe_oa_set_property_fn)(struct xe_oa *oa, u64 value,
struct xe_oa_open_param *param);
-static const xe_oa_set_property_fn xe_oa_set_property_funcs[] = {
+static const xe_oa_set_property_fn xe_oa_set_property_funcs_open[] = {
[DRM_XE_OA_PROPERTY_OA_UNIT_ID] = xe_oa_set_prop_oa_unit_id,
[DRM_XE_OA_PROPERTY_SAMPLE_OA] = xe_oa_set_prop_sample_oa,
[DRM_XE_OA_PROPERTY_OA_METRIC_SET] = xe_oa_set_prop_metric_set,
@@ -1221,8 +1232,22 @@ static const xe_oa_set_property_fn xe_oa_set_property_funcs[] = {
[DRM_XE_OA_PROPERTY_SYNCS] = xe_oa_set_prop_syncs_user,
};
-static int xe_oa_user_ext_set_property(struct xe_oa *oa, u64 extension,
- struct xe_oa_open_param *param)
+static const xe_oa_set_property_fn xe_oa_set_property_funcs_config[] = {
+ [DRM_XE_OA_PROPERTY_OA_UNIT_ID] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_SAMPLE_OA] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_OA_METRIC_SET] = xe_oa_set_prop_metric_set,
+ [DRM_XE_OA_PROPERTY_OA_FORMAT] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_OA_PERIOD_EXPONENT] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_OA_DISABLED] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_EXEC_QUEUE_ID] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_OA_ENGINE_INSTANCE] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_NO_PREEMPT] = xe_oa_set_prop_ret_inval,
+ [DRM_XE_OA_PROPERTY_NUM_SYNCS] = xe_oa_set_prop_num_syncs,
+ [DRM_XE_OA_PROPERTY_SYNCS] = xe_oa_set_prop_syncs_user,
+};
+
+static int xe_oa_user_ext_set_property(struct xe_oa *oa, enum xe_oa_user_extn_from from,
+ u64 extension, struct xe_oa_open_param *param)
{
u64 __user *address = u64_to_user_ptr(extension);
struct drm_xe_ext_set_property ext;
@@ -1233,23 +1258,30 @@ static int xe_oa_user_ext_set_property(struct xe_oa *oa, u64 extension,
if (XE_IOCTL_DBG(oa->xe, err))
return -EFAULT;
- if (XE_IOCTL_DBG(oa->xe, ext.property >= ARRAY_SIZE(xe_oa_set_property_funcs)) ||
+ BUILD_BUG_ON(ARRAY_SIZE(xe_oa_set_property_funcs_open) !=
+ ARRAY_SIZE(xe_oa_set_property_funcs_config));
+
+ if (XE_IOCTL_DBG(oa->xe, ext.property >= ARRAY_SIZE(xe_oa_set_property_funcs_open)) ||
XE_IOCTL_DBG(oa->xe, ext.pad))
return -EINVAL;
- idx = array_index_nospec(ext.property, ARRAY_SIZE(xe_oa_set_property_funcs));
- return xe_oa_set_property_funcs[idx](oa, ext.value, param);
+ idx = array_index_nospec(ext.property, ARRAY_SIZE(xe_oa_set_property_funcs_open));
+
+ if (from == XE_OA_USER_EXTN_FROM_CONFIG)
+ return xe_oa_set_property_funcs_config[idx](oa, ext.value, param);
+ else
+ return xe_oa_set_property_funcs_open[idx](oa, ext.value, param);
}
-typedef int (*xe_oa_user_extension_fn)(struct xe_oa *oa, u64 extension,
- struct xe_oa_open_param *param);
+typedef int (*xe_oa_user_extension_fn)(struct xe_oa *oa, enum xe_oa_user_extn_from from,
+ u64 extension, struct xe_oa_open_param *param);
static const xe_oa_user_extension_fn xe_oa_user_extension_funcs[] = {
[DRM_XE_OA_EXTENSION_SET_PROPERTY] = xe_oa_user_ext_set_property,
};
#define MAX_USER_EXTENSIONS 16
-static int xe_oa_user_extensions(struct xe_oa *oa, u64 extension, int ext_number,
- struct xe_oa_open_param *param)
+static int xe_oa_user_extensions(struct xe_oa *oa, enum xe_oa_user_extn_from from, u64 extension,
+ int ext_number, struct xe_oa_open_param *param)
{
u64 __user *address = u64_to_user_ptr(extension);
struct drm_xe_user_extension ext;
@@ -1268,12 +1300,12 @@ static int xe_oa_user_extensions(struct xe_oa *oa, u64 extension, int ext_number
return -EINVAL;
idx = array_index_nospec(ext.name, ARRAY_SIZE(xe_oa_user_extension_funcs));
- err = xe_oa_user_extension_funcs[idx](oa, extension, param);
+ err = xe_oa_user_extension_funcs[idx](oa, from, extension, param);
if (XE_IOCTL_DBG(oa->xe, err))
return err;
if (ext.next_extension)
- return xe_oa_user_extensions(oa, ext.next_extension, ++ext_number, param);
+ return xe_oa_user_extensions(oa, from, ext.next_extension, ++ext_number, param);
return 0;
}
@@ -1419,7 +1451,7 @@ static long xe_oa_config_locked(struct xe_oa_stream *stream, u64 arg)
struct xe_oa_config *config;
int err;
- err = xe_oa_user_extensions(stream->oa, arg, 0, ¶m);
+ err = xe_oa_user_extensions(stream->oa, XE_OA_USER_EXTN_FROM_CONFIG, arg, 0, ¶m);
if (err)
return err;
@@ -1970,7 +2002,7 @@ int xe_oa_stream_open_ioctl(struct drm_device *dev, u64 data, struct drm_file *f
}
param.xef = xef;
- ret = xe_oa_user_extensions(oa, data, 0, ¶m);
+ ret = xe_oa_user_extensions(oa, XE_OA_USER_EXTN_FROM_OPEN, data, 0, ¶m);
if (ret)
return ret;
