This is a note to let you know that I've just added the patch titled drm/i915: Include the PLL name in the debug messages to the 6.8-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-i915-include-the-pll-name-in-the-debug-messages.patch and it can be found in the queue-6.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From d283ee5662c6bf2f3771a36b926f6988e6dddfc6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@xxxxxxxxxxxxxxx> Date: Tue, 23 Jan 2024 11:31:35 +0200 Subject: drm/i915: Include the PLL name in the debug messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> commit d283ee5662c6bf2f3771a36b926f6988e6dddfc6 upstream. Make the log easier to parse by including the name of the PLL in the debug prints regarding said PLL. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20240123093137.9133-1-ville.syrjala@xxxxxxxxxxxxxxx Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 39 +++++++++++++------------- 1 file changed, 20 insertions(+), 19 deletions(-) --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -4475,25 +4475,25 @@ verify_single_dpll_state(struct drm_i915 u8 pipe_mask; bool active; - drm_dbg_kms(&i915->drm, "%s\n", pll->info->name); - active = intel_dpll_get_hw_state(i915, pll, &dpll_hw_state); if (!(pll->info->flags & INTEL_DPLL_ALWAYS_ON)) { I915_STATE_WARN(i915, !pll->on && pll->active_mask, - "pll in active use but not on in sw tracking\n"); + "%s: pll in active use but not on in sw tracking\n", + pll->info->name); I915_STATE_WARN(i915, pll->on && !pll->active_mask, - "pll is on but not used by any active pipe\n"); + "%s: pll is on but not used by any active pipe\n", + pll->info->name); I915_STATE_WARN(i915, pll->on != active, - "pll on state mismatch (expected %i, found %i)\n", - pll->on, active); + "%s: pll on state mismatch (expected %i, found %i)\n", + pll->info->name, pll->on, active); } if (!crtc) { I915_STATE_WARN(i915, pll->active_mask & ~pll->state.pipe_mask, - "more active pll users than references: 0x%x vs 0x%x\n", - pll->active_mask, pll->state.pipe_mask); + "%s: more active pll users than references: 0x%x vs 0x%x\n", + pll->info->name, pll->active_mask, pll->state.pipe_mask); return; } @@ -4502,21 +4502,22 @@ verify_single_dpll_state(struct drm_i915 if (new_crtc_state->hw.active) I915_STATE_WARN(i915, !(pll->active_mask & pipe_mask), - "pll active mismatch (expected pipe %c in active mask 0x%x)\n", - pipe_name(crtc->pipe), pll->active_mask); + "%s: pll active mismatch (expected pipe %c in active mask 0x%x)\n", + pll->info->name, pipe_name(crtc->pipe), pll->active_mask); else I915_STATE_WARN(i915, pll->active_mask & pipe_mask, - "pll active mismatch (didn't expect pipe %c in active mask 0x%x)\n", - pipe_name(crtc->pipe), pll->active_mask); + "%s: pll active mismatch (didn't expect pipe %c in active mask 0x%x)\n", + pll->info->name, pipe_name(crtc->pipe), pll->active_mask); I915_STATE_WARN(i915, !(pll->state.pipe_mask & pipe_mask), - "pll enabled crtcs mismatch (expected 0x%x in 0x%x)\n", - pipe_mask, pll->state.pipe_mask); + "%s: pll enabled crtcs mismatch (expected 0x%x in 0x%x)\n", + pll->info->name, pipe_mask, pll->state.pipe_mask); I915_STATE_WARN(i915, pll->on && memcmp(&pll->state.hw_state, &dpll_hw_state, sizeof(dpll_hw_state)), - "pll hw state mismatch\n"); + "%s: pll hw state mismatch\n", + pll->info->name); } void intel_shared_dpll_state_verify(struct intel_atomic_state *state, @@ -4538,11 +4539,11 @@ void intel_shared_dpll_state_verify(stru struct intel_shared_dpll *pll = old_crtc_state->shared_dpll; I915_STATE_WARN(i915, pll->active_mask & pipe_mask, - "pll active mismatch (didn't expect pipe %c in active mask (0x%x))\n", - pipe_name(crtc->pipe), pll->active_mask); + "%s: pll active mismatch (didn't expect pipe %c in active mask (0x%x))\n", + pll->info->name, pipe_name(crtc->pipe), pll->active_mask); I915_STATE_WARN(i915, pll->state.pipe_mask & pipe_mask, - "pll enabled crtcs mismatch (found pipe %c in enabled mask (0x%x))\n", - pipe_name(crtc->pipe), pll->state.pipe_mask); + "%s: pll enabled crtcs mismatch (found pipe %c in enabled mask (0x%x))\n", + pll->info->name, pipe_name(crtc->pipe), pll->state.pipe_mask); } } Patches currently in stable-queue which might be from ville.syrjala@xxxxxxxxxxxxxxx are queue-6.8/drm-i915-try-to-preserve-the-current-shared_dpll-for-fastset-on-type-c-ports.patch queue-6.8/drm-i915-replace-a-memset-with-zero-initialization.patch queue-6.8/drm-i915-add-missing-to-__assign_str-macros-in-trace.patch queue-6.8/drm-i915-include-the-pll-name-in-the-debug-messages.patch queue-6.8/drm-i915-suppress-old-pll-pipe_mask-checks-for-mg-tc-tbt-plls.patch