From: Paulo Zanoni Date: Fri, 21 Feb 2014 16:52:28 +0000 (-0300) Subject: drm/i915: assert we're not runtime suspended when accessing registers X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6f0ea9e212b36fe831f104ab2ac7582b9741600a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/i915: assert we're not runtime suspended when accessing registers I could swear this was already happening in the current code... Also, put the reads and writes in a generic place, so we don't forget it again when we add runtime PM support to new platforms. Signed-off-by: Paulo Zanoni Reviewed-by: Imre Deak Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 8cb0a33054a6..e5ee65655e8c 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -471,6 +471,7 @@ hsw_unclaimed_reg_check(struct drm_i915_private *dev_priv, u32 reg) #define REG_READ_HEADER(x) \ unsigned long irqflags; \ u##x val = 0; \ + assert_device_not_suspended(dev_priv); \ spin_lock_irqsave(&dev_priv->uncore.lock, irqflags) #define REG_READ_FOOTER \ @@ -567,6 +568,7 @@ __gen4_read(64) #define REG_WRITE_HEADER \ unsigned long irqflags; \ trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \ + assert_device_not_suspended(dev_priv); \ spin_lock_irqsave(&dev_priv->uncore.lock, irqflags) #define REG_WRITE_FOOTER \ @@ -597,7 +599,6 @@ gen6_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \ __fifo_ret = __gen6_gt_wait_for_fifo(dev_priv); \ } \ - assert_device_not_suspended(dev_priv); \ __raw_i915_write##x(dev_priv, reg, val); \ if (unlikely(__fifo_ret)) { \ gen6_gt_check_fifodbg(dev_priv); \ @@ -613,7 +614,6 @@ hsw_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace) if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \ __fifo_ret = __gen6_gt_wait_for_fifo(dev_priv); \ } \ - assert_device_not_suspended(dev_priv); \ hsw_unclaimed_reg_clear(dev_priv, reg); \ __raw_i915_write##x(dev_priv, reg, val); \ if (unlikely(__fifo_ret)) { \