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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-18 00:33:29 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-18 00:33:29 -0300 |
commit | 6ece15cc69504348ad484564d14968c542987053 (patch) | |
tree | cd6194a333518d78edd611023f2e255e4b66c8c9 /drivers/gpu/drm/i915/i915_drv.h | |
parent | 0a2bb03fe20f81dc4cac96d7fe0e4194ae6efffd (diff) |
Linux-libre 4.1.6-gnu
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8ae6f7f06..683a9b004 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3190,15 +3190,14 @@ 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 = I915_READ(upper_reg); \ - u32 lower = I915_READ(lower_reg); \ - u32 tmp = I915_READ(upper_reg); \ - if (upper != tmp) { \ - upper = tmp; \ - lower = I915_READ(lower_reg); \ - WARN_ON(I915_READ(upper_reg) != upper); \ - } \ - (u64)upper << 32 | lower; }) + u32 upper, lower, tmp; \ + tmp = I915_READ(upper_reg); \ + do { \ + upper = tmp; \ + lower = I915_READ(lower_reg); \ + tmp = I915_READ(upper_reg); \ + } while (upper != tmp); \ + (u64)upper << 32 | lower; }) #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg) #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg) |