From: Himal Prasad Ghimiray Date: Mon, 14 Oct 2024 07:55:54 +0000 (+0530) Subject: drm/xe/pat: Update handling of xe_force_wake_get return X-Git-Tag: v6.13-rc1~122^2~10^2~34 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=52f8cd72633ba4588aedd18965527d92294c93a1;p=thirdparty%2Fkernel%2Flinux.git drm/xe/pat: Update handling of xe_force_wake_get return xe_force_wake_get() now returns the reference count-incremented domain mask. If it fails for individual domains, the return value will always be 0. However, for XE_FORCEWAKE_ALL, it may return a non-zero value even in the event of failure. Update the return handling of xe_force_wake_get() to reflect this behavior, and ensure that the return value is passed as input to xe_force_wake_put(). v3 - return xe_wakeref_t instead of int in xe_force_wake_get() - xe_force_wake_put() error doesn't need to be checked. It internally WARNS on domain ack failure. - don't use xe_assert() to report HW errors (Michal) v5 - return unsigned int from xe_force_wake_get() - remove redundant warns v7 - Fix commit message - Remove redundant header Cc: Michal Wajdeczko Cc: Rodrigo Vivi Cc: Lucas De Marchi Signed-off-by: Himal Prasad Ghimiray Reviewed-by: Nirmoy Das Reviewed-by: Badal Nilawar Link: https://patchwork.freedesktop.org/patch/msgid/20241014075601.2324382-20-himal.prasad.ghimiray@intel.com Signed-off-by: Rodrigo Vivi --- diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c index b164738181739..30fdbdb9341e8 100644 --- a/drivers/gpu/drm/xe/xe_pat.c +++ b/drivers/gpu/drm/xe/xe_pat.c @@ -182,11 +182,12 @@ static void program_pat_mcr(struct xe_gt *gt, const struct xe_pat_table_entry ta static void xelp_dump(struct xe_gt *gt, struct drm_printer *p) { struct xe_device *xe = gt_to_xe(gt); - int i, err; + unsigned int fw_ref; + int i; - err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); - if (err) - goto err_fw; + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); + if (!fw_ref) + return; drm_printf(p, "PAT table:\n"); @@ -198,9 +199,7 @@ static void xelp_dump(struct xe_gt *gt, struct drm_printer *p) XELP_MEM_TYPE_STR_MAP[mem_type], pat); } - err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT); -err_fw: - xe_assert(xe, !err); + xe_force_wake_put(gt_to_fw(gt), fw_ref); } static const struct xe_pat_ops xelp_pat_ops = { @@ -211,11 +210,12 @@ static const struct xe_pat_ops xelp_pat_ops = { static void xehp_dump(struct xe_gt *gt, struct drm_printer *p) { struct xe_device *xe = gt_to_xe(gt); - int i, err; + unsigned int fw_ref; + int i; - err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); - if (err) - goto err_fw; + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); + if (!fw_ref) + return; drm_printf(p, "PAT table:\n"); @@ -229,9 +229,7 @@ static void xehp_dump(struct xe_gt *gt, struct drm_printer *p) XELP_MEM_TYPE_STR_MAP[mem_type], pat); } - err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT); -err_fw: - xe_assert(xe, !err); + xe_force_wake_put(gt_to_fw(gt), fw_ref); } static const struct xe_pat_ops xehp_pat_ops = { @@ -242,11 +240,12 @@ static const struct xe_pat_ops xehp_pat_ops = { static void xehpc_dump(struct xe_gt *gt, struct drm_printer *p) { struct xe_device *xe = gt_to_xe(gt); - int i, err; + unsigned int fw_ref; + int i; - err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); - if (err) - goto err_fw; + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); + if (!fw_ref) + return; drm_printf(p, "PAT table:\n"); @@ -258,9 +257,7 @@ static void xehpc_dump(struct xe_gt *gt, struct drm_printer *p) REG_FIELD_GET(XEHPC_CLOS_LEVEL_MASK, pat), pat); } - err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT); -err_fw: - xe_assert(xe, !err); + xe_force_wake_put(gt_to_fw(gt), fw_ref); } static const struct xe_pat_ops xehpc_pat_ops = { @@ -271,11 +268,12 @@ static const struct xe_pat_ops xehpc_pat_ops = { static void xelpg_dump(struct xe_gt *gt, struct drm_printer *p) { struct xe_device *xe = gt_to_xe(gt); - int i, err; + unsigned int fw_ref; + int i; - err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); - if (err) - goto err_fw; + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); + if (!fw_ref) + return; drm_printf(p, "PAT table:\n"); @@ -292,9 +290,7 @@ static void xelpg_dump(struct xe_gt *gt, struct drm_printer *p) REG_FIELD_GET(XELPG_INDEX_COH_MODE_MASK, pat), pat); } - err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT); -err_fw: - xe_assert(xe, !err); + xe_force_wake_put(gt_to_fw(gt), fw_ref); } /* @@ -330,12 +326,13 @@ static void xe2lpm_program_pat(struct xe_gt *gt, const struct xe_pat_table_entry static void xe2_dump(struct xe_gt *gt, struct drm_printer *p) { struct xe_device *xe = gt_to_xe(gt); - int i, err; + unsigned int fw_ref; u32 pat; + int i; - err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); - if (err) - goto err_fw; + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT); + if (!fw_ref) + return; drm_printf(p, "PAT table:\n"); @@ -374,9 +371,7 @@ static void xe2_dump(struct xe_gt *gt, struct drm_printer *p) REG_FIELD_GET(XE2_COH_MODE, pat), pat); - err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT); -err_fw: - xe_assert(xe, !err); + xe_force_wake_put(gt_to_fw(gt), fw_ref); } static const struct xe_pat_ops xe2_pat_ops = {