From 7afe2340641dc006aad8f356665b1f157509fd3a Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Tue, 1 Aug 2023 15:32:49 +0300 Subject: [PATCH] drm/i915/uncore: split unclaimed_reg_debug() to header and footer Make it easier to have different logic for the two for follow-up. Cc: Lee Shawn C Reviewed-by: Tvrtko Ursulin Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/8a0a93f08314f8d7e222a907d9aa5e0b89cb969e.1690886109.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_uncore.c | 37 ++++++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 796ebfe6c550..a88aa342b623 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1926,10 +1926,8 @@ __unclaimed_previous_reg_debug(struct intel_uncore *uncore, } static inline void -unclaimed_reg_debug(struct intel_uncore *uncore, - const i915_reg_t reg, - const bool read, - const bool before) +unclaimed_reg_debug_header(struct intel_uncore *uncore, + const i915_reg_t reg, const bool read) { if (likely(!uncore->i915->params.mmio_debug) || !uncore->debug) return; @@ -1937,13 +1935,22 @@ unclaimed_reg_debug(struct intel_uncore *uncore, /* interrupts are disabled and re-enabled around uncore->lock usage */ lockdep_assert_held(&uncore->lock); - if (before) { - spin_lock(&uncore->debug->lock); - __unclaimed_previous_reg_debug(uncore, reg, read); - } else { - __unclaimed_reg_debug(uncore, reg, read); - spin_unlock(&uncore->debug->lock); - } + spin_lock(&uncore->debug->lock); + __unclaimed_previous_reg_debug(uncore, reg, read); +} + +static inline void +unclaimed_reg_debug_footer(struct intel_uncore *uncore, + const i915_reg_t reg, const bool read) +{ + if (likely(!uncore->i915->params.mmio_debug) || !uncore->debug) + return; + + /* interrupts are disabled and re-enabled around uncore->lock usage */ + lockdep_assert_held(&uncore->lock); + + __unclaimed_reg_debug(uncore, reg, read); + spin_unlock(&uncore->debug->lock); } #define __vgpu_read(x) \ @@ -2004,10 +2011,10 @@ __gen2_read(64) u##x val = 0; \ assert_rpm_wakelock_held(uncore->rpm); \ spin_lock_irqsave(&uncore->lock, irqflags); \ - unclaimed_reg_debug(uncore, reg, true, true) + unclaimed_reg_debug_header(uncore, reg, true) #define GEN6_READ_FOOTER \ - unclaimed_reg_debug(uncore, reg, true, false); \ + unclaimed_reg_debug_footer(uncore, reg, true); \ spin_unlock_irqrestore(&uncore->lock, irqflags); \ trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \ return val @@ -2108,10 +2115,10 @@ __gen2_write(32) trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \ assert_rpm_wakelock_held(uncore->rpm); \ spin_lock_irqsave(&uncore->lock, irqflags); \ - unclaimed_reg_debug(uncore, reg, false, true) + unclaimed_reg_debug_header(uncore, reg, false) #define GEN6_WRITE_FOOTER \ - unclaimed_reg_debug(uncore, reg, false, false); \ + unclaimed_reg_debug_footer(uncore, reg, false); \ spin_unlock_irqrestore(&uncore->lock, irqflags) #define __gen6_write(x) \ -- 2.11.0