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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-23 12:33:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-23 12:33:14 -0300 |
| commit | a700f2d8e79ff80041078f160fe1edccf89b0c66 (patch) | |
| tree | 070bc692c19c5980c081222a6f7223869b1560f3 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | d5ad8b932c22e2790c2b27351116de96603df63a (diff) | |
Linux-libre 4.2.1-gnupck-4.2.1-gnu
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index fd1de451c..e1df8feb0 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3303,13 +3303,13 @@ int intel_freq_opcode(struct drm_i915_private *dev_priv, int val); #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true) #define I915_READ64_2x32(lower_reg, upper_reg) ({ \ - u32 upper, lower, tmp; \ - tmp = I915_READ(upper_reg); \ + u32 upper, lower, old_upper, loop = 0; \ + upper = I915_READ(upper_reg); \ do { \ - upper = tmp; \ + old_upper = upper; \ lower = I915_READ(lower_reg); \ - tmp = I915_READ(upper_reg); \ - } while (upper != tmp); \ + upper = I915_READ(upper_reg); \ + } while (upper != old_upper && loop++ < 2); \ (u64)upper << 32 | lower; }) #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg) |