drm specific WARN* calls include device information in the backtrace, so we know what device the warnings originate from.
Covert all the calls of WARN* with device specific drm_WARN* variants in functions where drm_i915_private struct pointer is readily available.
The conversion was done automatically with below coccinelle semantic patch. checkpatch errors/warnings are fixed manually.
@rule1@ identifier func, T; @@ func(...) { ... struct drm_i915_private *T = ...; <+... ( -WARN( +drm_WARN(&T->drm, ...) | -WARN_ON( +drm_WARN_ON(&T->drm, ...) | -WARN_ONCE( +drm_WARN_ONCE(&T->drm, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(&T->drm, ...) ) ...+> }
@rule2@ identifier func, T; @@ func(struct drm_i915_private *T,...) { <+... ( -WARN( +drm_WARN(&T->drm, ...) | -WARN_ON( +drm_WARN_ON(&T->drm, ...) | -WARN_ONCE( +drm_WARN_ONCE(&T->drm, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(&T->drm, ...) ) ...+> }
Signed-off-by: Pankaj Bharadiya pankaj.laxminarayan.bharadiya@intel.com --- drivers/gpu/drm/i915/display/intel_cdclk.c | 81 +++++++++++++--------- 1 file changed, 47 insertions(+), 34 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index e17b5a444887..3e80adee9b89 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -525,7 +525,8 @@ static void vlv_program_pfi_credits(struct drm_i915_private *dev_priv) * FIXME is this guaranteed to clear * immediately or should we poll for it? */ - WARN_ON(intel_de_read(dev_priv, GCI_CONTROL) & PFI_CREDIT_RESEND); + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, GCI_CONTROL) & PFI_CREDIT_RESEND); }
static void vlv_set_cdclk(struct drm_i915_private *dev_priv, @@ -727,12 +728,14 @@ static void bdw_set_cdclk(struct drm_i915_private *dev_priv, u32 val; int ret;
- if (WARN((intel_de_read(dev_priv, LCPLL_CTL) & - (LCPLL_PLL_DISABLE | LCPLL_PLL_LOCK | - LCPLL_CD_CLOCK_DISABLE | LCPLL_ROOT_CD_CLOCK_DISABLE | - LCPLL_CD2X_CLOCK_DISABLE | LCPLL_POWER_DOWN_ALLOW | - LCPLL_CD_SOURCE_FCLK)) != LCPLL_PLL_LOCK, - "trying to change cdclk frequency with cdclk not enabled\n")) + if (drm_WARN(&dev_priv->drm, (intel_de_read(dev_priv, LCPLL_CTL) & + (LCPLL_PLL_DISABLE | LCPLL_PLL_LOCK | + LCPLL_CD_CLOCK_DISABLE | + LCPLL_ROOT_CD_CLOCK_DISABLE | + LCPLL_CD2X_CLOCK_DISABLE | + LCPLL_POWER_DOWN_ALLOW | + LCPLL_CD_SOURCE_FCLK)) != LCPLL_PLL_LOCK, + "trying to change cdclk frequency with cdclk not enabled\n")) return;
ret = sandybridge_pcode_write(dev_priv, @@ -842,15 +845,16 @@ static void skl_dpll0_update(struct drm_i915_private *dev_priv, if ((val & LCPLL_PLL_ENABLE) == 0) return;
- if (WARN_ON((val & LCPLL_PLL_LOCK) == 0)) + if (drm_WARN_ON(&dev_priv->drm, (val & LCPLL_PLL_LOCK) == 0)) return;
val = intel_de_read(dev_priv, DPLL_CTRL1);
- if (WARN_ON((val & (DPLL_CTRL1_HDMI_MODE(SKL_DPLL0) | - DPLL_CTRL1_SSC(SKL_DPLL0) | - DPLL_CTRL1_OVERRIDE(SKL_DPLL0))) != - DPLL_CTRL1_OVERRIDE(SKL_DPLL0))) + if (drm_WARN_ON(&dev_priv->drm, + (val & (DPLL_CTRL1_HDMI_MODE(SKL_DPLL0) | + DPLL_CTRL1_SSC(SKL_DPLL0) | + DPLL_CTRL1_OVERRIDE(SKL_DPLL0))) != + DPLL_CTRL1_OVERRIDE(SKL_DPLL0))) return;
switch (val & DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)) { @@ -952,7 +956,7 @@ static void skl_dpll0_enable(struct drm_i915_private *dev_priv, int vco) { u32 val;
- WARN_ON(vco != 8100000 && vco != 8640000); + drm_WARN_ON(&dev_priv->drm, vco != 8100000 && vco != 8640000);
/* * We always enable DPLL0 with the lowest link rate possible, but still @@ -1017,7 +1021,8 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv, * use the corresponding VCO freq as that always leads to using the * minimum 308MHz CDCLK. */ - WARN_ON_ONCE(IS_SKYLAKE(dev_priv) && vco == 8640000); + drm_WARN_ON_ONCE(&dev_priv->drm, + IS_SKYLAKE(dev_priv) && vco == 8640000);
ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL, SKL_CDCLK_PREPARE_FOR_CHANGE, @@ -1032,8 +1037,9 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv, /* Choose frequency for this cdclk */ switch (cdclk) { default: - WARN_ON(cdclk != dev_priv->cdclk.hw.bypass); - WARN_ON(vco != 0); + drm_WARN_ON(&dev_priv->drm, + cdclk != dev_priv->cdclk.hw.bypass); + drm_WARN_ON(&dev_priv->drm, vco != 0); /* fall through */ case 308571: case 337500: @@ -1235,8 +1241,9 @@ static int bxt_calc_cdclk(struct drm_i915_private *dev_priv, int min_cdclk) table[i].cdclk >= min_cdclk) return table[i].cdclk;
- WARN(1, "Cannot satisfy minimum cdclk %d with refclk %u\n", - min_cdclk, dev_priv->cdclk.hw.ref); + drm_WARN(&dev_priv->drm, 1, + "Cannot satisfy minimum cdclk %d with refclk %u\n", + min_cdclk, dev_priv->cdclk.hw.ref); return 0; }
@@ -1253,8 +1260,8 @@ static int bxt_calc_cdclk_pll_vco(struct drm_i915_private *dev_priv, int cdclk) table[i].cdclk == cdclk) return dev_priv->cdclk.hw.ref * table[i].ratio;
- WARN(1, "cdclk %d not valid for refclk %u\n", - cdclk, dev_priv->cdclk.hw.ref); + drm_WARN(&dev_priv->drm, 1, "cdclk %d not valid for refclk %u\n", + cdclk, dev_priv->cdclk.hw.ref); return 0; }
@@ -1387,15 +1394,17 @@ static void bxt_get_cdclk(struct drm_i915_private *dev_priv, div = 2; break; case BXT_CDCLK_CD2X_DIV_SEL_1_5: - WARN(IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10, - "Unsupported divider\n"); + drm_WARN(&dev_priv->drm, + IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10, + "Unsupported divider\n"); div = 3; break; case BXT_CDCLK_CD2X_DIV_SEL_2: div = 4; break; case BXT_CDCLK_CD2X_DIV_SEL_4: - WARN(INTEL_GEN(dev_priv) >= 10, "Unsupported divider\n"); + drm_WARN(&dev_priv->drm, INTEL_GEN(dev_priv) >= 10, + "Unsupported divider\n"); div = 8; break; default: @@ -1535,22 +1544,25 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv, /* cdclk = vco / 2 / div{1,1.5,2,4} */ switch (DIV_ROUND_CLOSEST(vco, cdclk)) { default: - WARN_ON(cdclk != dev_priv->cdclk.hw.bypass); - WARN_ON(vco != 0); + drm_WARN_ON(&dev_priv->drm, + cdclk != dev_priv->cdclk.hw.bypass); + drm_WARN_ON(&dev_priv->drm, vco != 0); /* fall through */ case 2: divider = BXT_CDCLK_CD2X_DIV_SEL_1; break; case 3: - WARN(IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10, - "Unsupported divider\n"); + drm_WARN(&dev_priv->drm, + IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10, + "Unsupported divider\n"); divider = BXT_CDCLK_CD2X_DIV_SEL_1_5; break; case 4: divider = BXT_CDCLK_CD2X_DIV_SEL_2; break; case 8: - WARN(INTEL_GEN(dev_priv) >= 10, "Unsupported divider\n"); + drm_WARN(&dev_priv->drm, INTEL_GEN(dev_priv) >= 10, + "Unsupported divider\n"); divider = BXT_CDCLK_CD2X_DIV_SEL_4; break; } @@ -1864,15 +1876,16 @@ static void intel_set_cdclk(struct drm_i915_private *dev_priv, if (!intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_state)) return;
- if (WARN_ON_ONCE(!dev_priv->display.set_cdclk)) + if (drm_WARN_ON_ONCE(&dev_priv->drm, !dev_priv->display.set_cdclk)) return;
intel_dump_cdclk_state(cdclk_state, "Changing CDCLK to");
dev_priv->display.set_cdclk(dev_priv, cdclk_state, pipe);
- if (WARN(intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_state), - "cdclk state doesn't match!\n")) { + if (drm_WARN(&dev_priv->drm, + intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_state), + "cdclk state doesn't match!\n")) { intel_dump_cdclk_state(&dev_priv->cdclk.hw, "[hw state]"); intel_dump_cdclk_state(cdclk_state, "[sw state]"); } @@ -2478,7 +2491,7 @@ void intel_update_max_cdclk(struct drm_i915_private *dev_priv) int max_cdclk, vco;
vco = dev_priv->skl_preferred_vco_freq; - WARN_ON(vco != 8100000 && vco != 8640000); + drm_WARN_ON(&dev_priv->drm, vco != 8100000 && vco != 8640000);
/* * Use the lower (vco 8640) cdclk values as a @@ -2731,8 +2744,8 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv) else if (IS_I845G(dev_priv)) dev_priv->display.get_cdclk = fixed_200mhz_get_cdclk; else { /* 830 */ - WARN(!IS_I830(dev_priv), - "Unknown platform. Assuming 133 MHz CDCLK\n"); + drm_WARN(&dev_priv->drm, !IS_I830(dev_priv), + "Unknown platform. Assuming 133 MHz CDCLK\n"); dev_priv->display.get_cdclk = fixed_133mhz_get_cdclk; } }