The states will be used by upcoming changes to produce (in case of save) or consume (in case of resume) the VF migration data.
Signed-off-by: Michał Winiarski <[email protected]> --- drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c | 270 ++++++++++++++++++ drivers/gpu/drm/xe/xe_gt_sriov_pf_control.h | 6 + .../gpu/drm/xe/xe_gt_sriov_pf_control_types.h | 17 ++ drivers/gpu/drm/xe/xe_sriov_pf_control.c | 96 +++++++ drivers/gpu/drm/xe/xe_sriov_pf_control.h | 4 + drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c | 38 +++ 6 files changed, 431 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c index 2e6bd3d1fe1da..44df984278548 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c @@ -184,6 +184,13 @@ static const char *control_bit_to_string(enum xe_gt_sriov_control_bits bit) CASE2STR(PAUSE_SAVE_GUC); CASE2STR(PAUSE_FAILED); CASE2STR(PAUSED); + CASE2STR(MIGRATION_DATA_WIP); + CASE2STR(SAVE_WIP); + CASE2STR(SAVE_FAILED); + CASE2STR(SAVED); + CASE2STR(RESTORE_WIP); + CASE2STR(RESTORE_FAILED); + CASE2STR(RESTORED); CASE2STR(RESUME_WIP); CASE2STR(RESUME_SEND_RESUME); CASE2STR(RESUME_FAILED); @@ -207,6 +214,8 @@ static unsigned long pf_get_default_timeout(enum xe_gt_sriov_control_bits bit) return HZ / 2; case XE_GT_SRIOV_STATE_FLR_WIP: case XE_GT_SRIOV_STATE_FLR_RESET_CONFIG: + case XE_GT_SRIOV_STATE_SAVE_WIP: + case XE_GT_SRIOV_STATE_RESTORE_WIP: return 5 * HZ; default: return HZ; @@ -359,6 +368,10 @@ static void pf_queue_vf(struct xe_gt *gt, unsigned int vfid) static void pf_exit_vf_flr_wip(struct xe_gt *gt, unsigned int vfid); static void pf_exit_vf_stop_wip(struct xe_gt *gt, unsigned int vfid); +static void pf_exit_vf_save_wip(struct xe_gt *gt, unsigned int vfid); +static void pf_exit_vf_saved(struct xe_gt *gt, unsigned int vfid); +static void pf_exit_vf_restore_wip(struct xe_gt *gt, unsigned int vfid); +static void pf_exit_vf_restored(struct xe_gt *gt, unsigned int vfid); static void pf_exit_vf_pause_wip(struct xe_gt *gt, unsigned int vfid); static void pf_exit_vf_resume_wip(struct xe_gt *gt, unsigned int vfid); @@ -380,6 +393,8 @@ static void pf_exit_vf_wip(struct xe_gt *gt, unsigned int vfid) pf_exit_vf_flr_wip(gt, vfid); pf_exit_vf_stop_wip(gt, vfid); + pf_exit_vf_save_wip(gt, vfid); + pf_exit_vf_restore_wip(gt, vfid); pf_exit_vf_pause_wip(gt, vfid); pf_exit_vf_resume_wip(gt, vfid); @@ -399,6 +414,8 @@ static void pf_enter_vf_ready(struct xe_gt *gt, unsigned int vfid) pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_PAUSED); pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_STOPPED); pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESUMED); + pf_exit_vf_saved(gt, vfid); + pf_exit_vf_restored(gt, vfid); pf_exit_vf_mismatch(gt, vfid); pf_exit_vf_wip(gt, vfid); } @@ -675,6 +692,8 @@ static void pf_enter_vf_resumed(struct xe_gt *gt, unsigned int vfid) { pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESUMED); pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_PAUSED); + pf_exit_vf_saved(gt, vfid); + pf_exit_vf_restored(gt, vfid); pf_exit_vf_mismatch(gt, vfid); pf_exit_vf_wip(gt, vfid); } @@ -776,6 +795,249 @@ int xe_gt_sriov_pf_control_resume_vf(struct xe_gt *gt, unsigned int vfid) return -ECANCELED; } +/** + * xe_gt_sriov_pf_control_check_vf_data_wip - check if new SR-IOV VF migration data is expected + * @gt: the &struct xe_gt + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: true when new migration data is expected to be produced, false otherwise + */ +bool xe_gt_sriov_pf_control_check_vf_data_wip(struct xe_gt *gt, unsigned int vfid) +{ + return pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_MIGRATION_DATA_WIP); +} + +static void pf_exit_vf_save_wip(struct xe_gt *gt, unsigned int vfid) +{ + pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVE_WIP); +} + +static void pf_enter_vf_saved(struct xe_gt *gt, unsigned int vfid) +{ + if (!pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVED)) + pf_enter_vf_state_machine_bug(gt, vfid); + + xe_gt_sriov_info(gt, "VF%u saved!\n", vfid); + + pf_exit_vf_mismatch(gt, vfid); + pf_exit_vf_wip(gt, vfid); +} + +static void pf_exit_vf_saved(struct xe_gt *gt, unsigned int vfid) +{ + pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVED); +} + +static bool pf_handle_vf_save_wip(struct xe_gt *gt, unsigned int vfid) +{ + if (!pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVE_WIP)) + return false; + + pf_exit_vf_save_wip(gt, vfid); + pf_enter_vf_saved(gt, vfid); + + return true; +} + +static bool pf_enter_vf_save_wip(struct xe_gt *gt, unsigned int vfid) +{ + if (pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVE_WIP)) { + pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_MIGRATION_DATA_WIP); + pf_exit_vf_restored(gt, vfid); + pf_enter_vf_wip(gt, vfid); + pf_queue_vf(gt, vfid); + return true; + } + + return false; +} + +/** + * xe_gt_sriov_pf_control_save_vf - Save SR-IOV VF migration data. + * @gt: the &struct xe_gt + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_gt_sriov_pf_control_save_vf(struct xe_gt *gt, unsigned int vfid) +{ + if (pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_STOPPED)) { + xe_gt_sriov_dbg(gt, "VF%u is stopped!\n", vfid); + return -EPERM; + } + + if (!pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_PAUSED)) { + xe_gt_sriov_dbg(gt, "VF%u is not paused!\n", vfid); + return -EPERM; + } + + if (pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORE_WIP)) { + xe_gt_sriov_dbg(gt, "VF%u restore is in progress!\n", vfid); + return -EPERM; + } + + if (!pf_enter_vf_save_wip(gt, vfid)) { + xe_gt_sriov_dbg(gt, "VF%u save already in progress!\n", vfid); + return -EALREADY; + } + + return 0; +} + +static int pf_wait_vf_save_done(struct xe_gt *gt, unsigned int vfid) +{ + unsigned long timeout = pf_get_default_timeout(XE_GT_SRIOV_STATE_SAVE_WIP); + int err; + + err = pf_wait_vf_wip_done(gt, vfid, timeout); + if (err) { + xe_gt_sriov_notice(gt, "VF%u SAVE didn't finish in %u ms (%pe)\n", + vfid, jiffies_to_msecs(timeout), ERR_PTR(err)); + return err; + } + + if (!pf_expect_vf_not_state(gt, vfid, XE_GT_SRIOV_STATE_SAVE_FAILED)) + return -EIO; + + return 0; +} + +/** + * xe_gt_sriov_pf_control_wait_save_done() - Wait for a VF Save to complete + * @gt: the &struct xe_gt + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_gt_sriov_pf_control_wait_save_done(struct xe_gt *gt, unsigned int vfid) +{ + if (!pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVE_WIP)) + return 0; + + return pf_wait_vf_save_done(gt, vfid); +} + +static void pf_exit_vf_restore_wip(struct xe_gt *gt, unsigned int vfid) +{ + pf_expect_vf_not_state(gt, vfid, XE_GT_SRIOV_STATE_MIGRATION_DATA_WIP); + pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORE_WIP); +} + +static void pf_enter_vf_restored(struct xe_gt *gt, unsigned int vfid) +{ + if (!pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORED)) + pf_enter_vf_state_machine_bug(gt, vfid); + + xe_gt_sriov_info(gt, "VF%u restored!\n", vfid); + + pf_exit_vf_mismatch(gt, vfid); + pf_exit_vf_wip(gt, vfid); +} + +static void pf_exit_vf_restored(struct xe_gt *gt, unsigned int vfid) +{ + pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORED); +} + +static bool pf_handle_vf_restore_wip(struct xe_gt *gt, unsigned int vfid) +{ + if (!pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORE_WIP)) + return false; + + pf_exit_vf_restore_wip(gt, vfid); + pf_enter_vf_restored(gt, vfid); + + return true; +} + +static bool pf_enter_vf_restore_wip(struct xe_gt *gt, unsigned int vfid) +{ + if (pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORE_WIP)) { + pf_enter_vf_state(gt, vfid, XE_GT_SRIOV_STATE_MIGRATION_DATA_WIP); + pf_exit_vf_saved(gt, vfid); + pf_enter_vf_wip(gt, vfid); + pf_enter_vf_restored(gt, vfid); + return true; + } + + return false; +} + +/** + * xe_gt_sriov_pf_control_restore_vf - Restore SR-IOV VF migration data. + * @gt: the &struct xe_gt + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_gt_sriov_pf_control_restore_vf(struct xe_gt *gt, unsigned int vfid) +{ + if (pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_STOPPED)) { + xe_gt_sriov_dbg(gt, "VF%u is stopped!\n", vfid); + return -EPERM; + } + + if (!pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_PAUSED)) { + xe_gt_sriov_dbg(gt, "VF%u is not paused!\n", vfid); + return -EPERM; + } + + if (pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_SAVE_WIP)) { + xe_gt_sriov_dbg(gt, "VF%u save is in progress!\n", vfid); + return -EPERM; + } + + if (!pf_enter_vf_restore_wip(gt, vfid)) { + xe_gt_sriov_dbg(gt, "VF%u restore already in progress!\n", vfid); + return -EALREADY; + } + + return 0; +} + +static int pf_wait_vf_restore_done(struct xe_gt *gt, unsigned int vfid) +{ + unsigned long timeout = pf_get_default_timeout(XE_GT_SRIOV_STATE_RESTORE_WIP); + int err; + + err = pf_wait_vf_wip_done(gt, vfid, timeout); + if (err) { + xe_gt_sriov_notice(gt, "VF%u RESTORE didn't finish in %u ms (%pe)\n", + vfid, jiffies_to_msecs(timeout), ERR_PTR(err)); + return err; + } + + if (!pf_expect_vf_not_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORE_FAILED)) + return -EIO; + + return 0; +} + +/** + * xe_gt_sriov_pf_control_wait_restore_done() - Wait for a VF Restore to complete + * @gt: the &struct xe_gt + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_gt_sriov_pf_control_wait_restore_done(struct xe_gt *gt, unsigned int vfid) +{ + if (!pf_check_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESTORE_WIP)) + return 0; + + return pf_wait_vf_restore_done(gt, vfid); +} + /** * DOC: The VF STOP state machine * @@ -817,6 +1079,8 @@ static void pf_enter_vf_stopped(struct xe_gt *gt, unsigned int vfid) pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_RESUMED); pf_exit_vf_state(gt, vfid, XE_GT_SRIOV_STATE_PAUSED); + pf_exit_vf_saved(gt, vfid); + pf_exit_vf_restored(gt, vfid); pf_exit_vf_mismatch(gt, vfid); pf_exit_vf_wip(gt, vfid); } @@ -1461,6 +1725,12 @@ static bool pf_process_vf_state_machine(struct xe_gt *gt, unsigned int vfid) if (pf_exit_vf_pause_save_guc(gt, vfid)) return true; + if (pf_handle_vf_save_wip(gt, vfid)) + return true; + + if (pf_handle_vf_restore_wip(gt, vfid)) + return true; + if (pf_exit_vf_resume_send_resume(gt, vfid)) return true; diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.h index 8a72ef3778d47..2e121e8132dcf 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.h +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.h @@ -14,8 +14,14 @@ struct xe_gt; int xe_gt_sriov_pf_control_init(struct xe_gt *gt); void xe_gt_sriov_pf_control_restart(struct xe_gt *gt); +bool xe_gt_sriov_pf_control_check_vf_data_wip(struct xe_gt *gt, unsigned int vfid); + int xe_gt_sriov_pf_control_pause_vf(struct xe_gt *gt, unsigned int vfid); int xe_gt_sriov_pf_control_resume_vf(struct xe_gt *gt, unsigned int vfid); +int xe_gt_sriov_pf_control_save_vf(struct xe_gt *gt, unsigned int vfid); +int xe_gt_sriov_pf_control_wait_save_done(struct xe_gt *gt, unsigned int vfid); +int xe_gt_sriov_pf_control_restore_vf(struct xe_gt *gt, unsigned int vfid); +int xe_gt_sriov_pf_control_wait_restore_done(struct xe_gt *gt, unsigned int vfid); int xe_gt_sriov_pf_control_stop_vf(struct xe_gt *gt, unsigned int vfid); int xe_gt_sriov_pf_control_trigger_flr(struct xe_gt *gt, unsigned int vfid); int xe_gt_sriov_pf_control_sync_flr(struct xe_gt *gt, unsigned int vfid, bool sync); diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control_types.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control_types.h index c80b7e77f1ad2..02b517533ee8a 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control_types.h +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control_types.h @@ -31,6 +31,13 @@ * @XE_GT_SRIOV_STATE_PAUSE_SAVE_GUC: indicates that the PF needs to save the VF GuC state. * @XE_GT_SRIOV_STATE_PAUSE_FAILED: indicates that a VF pause operation has failed. * @XE_GT_SRIOV_STATE_PAUSED: indicates that the VF is paused. + * @XE_GT_SRIOV_STATE_MIGRATION_DATA_WIP: indicates that the new data is expected in migration ring. + * @XE_GT_SRIOV_STATE_SAVE_WIP: indicates that VF save operation is in progress. + * @XE_GT_SRIOV_STATE_SAVE_FAILED: indicates that VF save operation has failed. + * @XE_GT_SRIOV_STATE_SAVED: indicates that VF is saved. + * @XE_GT_SRIOV_STATE_RESTORE_WIP: indicates that VF restore operation is in progress. + * @XE_GT_SRIOV_STATE_SAVE_FAILED: indicates that VF restore operation has failed. + * @XE_GT_SRIOV_STATE_SAVED: indicates that VF is restored. * @XE_GT_SRIOV_STATE_RESUME_WIP: indicates the a VF resume operation is in progress. * @XE_GT_SRIOV_STATE_RESUME_SEND_RESUME: indicates that the PF is about to send RESUME command. * @XE_GT_SRIOV_STATE_RESUME_FAILED: indicates that a VF resume operation has failed. @@ -63,6 +70,16 @@ enum xe_gt_sriov_control_bits { XE_GT_SRIOV_STATE_PAUSE_FAILED, XE_GT_SRIOV_STATE_PAUSED, + XE_GT_SRIOV_STATE_MIGRATION_DATA_WIP, + + XE_GT_SRIOV_STATE_SAVE_WIP, + XE_GT_SRIOV_STATE_SAVE_FAILED, + XE_GT_SRIOV_STATE_SAVED, + + XE_GT_SRIOV_STATE_RESTORE_WIP, + XE_GT_SRIOV_STATE_RESTORE_FAILED, + XE_GT_SRIOV_STATE_RESTORED, + XE_GT_SRIOV_STATE_RESUME_WIP, XE_GT_SRIOV_STATE_RESUME_SEND_RESUME, XE_GT_SRIOV_STATE_RESUME_FAILED, diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_control.c b/drivers/gpu/drm/xe/xe_sriov_pf_control.c index 416d00a03fbb7..e64c7b56172c6 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_control.c +++ b/drivers/gpu/drm/xe/xe_sriov_pf_control.c @@ -149,3 +149,99 @@ int xe_sriov_pf_control_sync_flr(struct xe_device *xe, unsigned int vfid) return 0; } + +/** + * xe_sriov_pf_control_save_vf - Save VF migration data on all GTs. + * @xe: the &xe_device + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_control_save_vf(struct xe_device *xe, unsigned int vfid) +{ + struct xe_gt *gt; + unsigned int id; + int ret; + + for_each_gt(gt, xe, id) { + ret = xe_gt_sriov_pf_control_save_vf(gt, vfid); + if (ret) + return ret; + } + + return 0; +} + +/** + * xe_sriov_pf_control_wait_save_vf - Wait until VF migration data was saved on all GTs + * @xe: the &xe_device + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_control_wait_save_vf(struct xe_device *xe, unsigned int vfid) +{ + struct xe_gt *gt; + u8 id; + int ret; + + for_each_gt(gt, xe, id) { + ret = xe_gt_sriov_pf_control_wait_save_done(gt, vfid); + if (ret) + break; + } + + return ret; +} + +/** + * xe_sriov_pf_control_restore_vf - Restore VF migration data on all GTs. + * @xe: the &xe_device + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_control_restore_vf(struct xe_device *xe, unsigned int vfid) +{ + struct xe_gt *gt; + u8 id; + int ret; + + for_each_gt(gt, xe, id) { + ret = xe_gt_sriov_pf_control_restore_vf(gt, vfid); + if (ret) + return ret; + } + + return ret; +} + +/** + * xe_sriov_pf_control_wait_save_vf - Wait until VF migration data was restored on all GTs + * @xe: the &xe_device + * @vfid: the VF identifier + * + * This function is for PF only. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_control_wait_restore_vf(struct xe_device *xe, unsigned int vfid) +{ + struct xe_gt *gt; + u8 id; + int ret; + + for_each_gt(gt, xe, id) { + ret = xe_gt_sriov_pf_control_wait_restore_done(gt, vfid); + if (ret) + break; + } + + return ret; +} diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_control.h b/drivers/gpu/drm/xe/xe_sriov_pf_control.h index 2d52d0ac1b28f..512fd21d87c1e 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_control.h +++ b/drivers/gpu/drm/xe/xe_sriov_pf_control.h @@ -13,5 +13,9 @@ int xe_sriov_pf_control_resume_vf(struct xe_device *xe, unsigned int vfid); int xe_sriov_pf_control_stop_vf(struct xe_device *xe, unsigned int vfid); int xe_sriov_pf_control_reset_vf(struct xe_device *xe, unsigned int vfid); int xe_sriov_pf_control_sync_flr(struct xe_device *xe, unsigned int vfid); +int xe_sriov_pf_control_save_vf(struct xe_device *xe, unsigned int vfid); +int xe_sriov_pf_control_wait_save_vf(struct xe_device *xe, unsigned int vfid); +int xe_sriov_pf_control_restore_vf(struct xe_device *xe, unsigned int vfid); +int xe_sriov_pf_control_wait_restore_vf(struct xe_device *xe, unsigned int vfid); #endif diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c b/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c index 97636ed86fb8b..74eeabef91c57 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c +++ b/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c @@ -75,11 +75,31 @@ static void pf_populate_pf(struct xe_device *xe, struct dentry *pfdent) * │ │ ├── reset * │ │ ├── resume * │ │ ├── stop + * │ │ ├── save + * │ │ ├── restore * │ │ : * │ ├── vf2 * │ │ ├── ... */ +static int from_file_read_to_vf_call(struct seq_file *s, + int (*call)(struct xe_device *, unsigned int)) +{ + struct dentry *dent = file_dentry(s->file)->d_parent; + struct xe_device *xe = extract_xe(dent); + unsigned int vfid = extract_vfid(dent); + int ret; + + xe_pm_runtime_get(xe); + ret = call(xe, vfid); + xe_pm_runtime_put(xe); + + if (ret < 0) + return ret; + + return s->count; +} + static ssize_t from_file_write_to_vf_call(struct file *file, const char __user *userbuf, size_t count, loff_t *ppos, int (*call)(struct xe_device *, unsigned int)) @@ -118,10 +138,26 @@ static ssize_t OP##_write(struct file *file, const char __user *userbuf, \ } \ DEFINE_SHOW_STORE_ATTRIBUTE(OP) +#define DEFINE_VF_RW_CONTROL_ATTRIBUTE(OP) \ +static int OP##_show(struct seq_file *s, void *unused) \ +{ \ + return from_file_read_to_vf_call(s, \ + xe_sriov_pf_control_wait_##OP); \ +} \ +static ssize_t OP##_write(struct file *file, const char __user *userbuf, \ + size_t count, loff_t *ppos) \ +{ \ + return from_file_write_to_vf_call(file, userbuf, count, ppos, \ + xe_sriov_pf_control_##OP); \ +} \ +DEFINE_SHOW_STORE_ATTRIBUTE(OP) + DEFINE_VF_CONTROL_ATTRIBUTE(pause_vf); DEFINE_VF_CONTROL_ATTRIBUTE(resume_vf); DEFINE_VF_CONTROL_ATTRIBUTE(stop_vf); DEFINE_VF_CONTROL_ATTRIBUTE(reset_vf); +DEFINE_VF_RW_CONTROL_ATTRIBUTE(save_vf); +DEFINE_VF_RW_CONTROL_ATTRIBUTE(restore_vf); static void pf_populate_vf(struct xe_device *xe, struct dentry *vfdent) { @@ -129,6 +165,8 @@ static void pf_populate_vf(struct xe_device *xe, struct dentry *vfdent) debugfs_create_file("resume", 0200, vfdent, xe, &resume_vf_fops); debugfs_create_file("stop", 0200, vfdent, xe, &stop_vf_fops); debugfs_create_file("reset", 0200, vfdent, xe, &reset_vf_fops); + debugfs_create_file("save", 0600, vfdent, xe, &save_vf_fops); + debugfs_create_file("restore", 0600, vfdent, xe, &restore_vf_fops); } static void pf_populate_with_tiles(struct xe_device *xe, struct dentry *dent, unsigned int vfid) -- 2.50.1
