From: Yuanhan Liu Date: Mon, 8 Nov 2010 09:58:16 +0000 (+0000) Subject: drm/i915: filter out the read/write of GPIO registers from debug tracing X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=db5e4172a023cff68b3597ace8a5390b02669d27;p=linux-beck.git drm/i915: filter out the read/write of GPIO registers from debug tracing These registers are written very frequently, are timing sensitive, and not particularly relevant to any debugging, so remove the tracepoints from these. Signed-off-by: Yuanhan Liu Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index 2be4f728ed0c..8f5c0d33ea00 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -85,8 +85,9 @@ static u32 get_reserved(struct intel_gpio *gpio) /* On most chips, these bits must be preserved in software. */ if (!IS_I830(dev) && !IS_845G(dev)) - reserved = I915_READ(gpio->reg) & (GPIO_DATA_PULLUP_DISABLE | - GPIO_CLOCK_PULLUP_DISABLE); + reserved = I915_READ_NOTRACE(gpio->reg) & + (GPIO_DATA_PULLUP_DISABLE | + GPIO_CLOCK_PULLUP_DISABLE); return reserved; } @@ -96,9 +97,9 @@ static int get_clock(void *data) struct intel_gpio *gpio = data; struct drm_i915_private *dev_priv = gpio->dev_priv; u32 reserved = get_reserved(gpio); - I915_WRITE(gpio->reg, reserved | GPIO_CLOCK_DIR_MASK); - I915_WRITE(gpio->reg, reserved); - return (I915_READ(gpio->reg) & GPIO_CLOCK_VAL_IN) != 0; + I915_WRITE_NOTRACE(gpio->reg, reserved | GPIO_CLOCK_DIR_MASK); + I915_WRITE_NOTRACE(gpio->reg, reserved); + return (I915_READ_NOTRACE(gpio->reg) & GPIO_CLOCK_VAL_IN) != 0; } static int get_data(void *data) @@ -106,9 +107,9 @@ static int get_data(void *data) struct intel_gpio *gpio = data; struct drm_i915_private *dev_priv = gpio->dev_priv; u32 reserved = get_reserved(gpio); - I915_WRITE(gpio->reg, reserved | GPIO_DATA_DIR_MASK); - I915_WRITE(gpio->reg, reserved); - return (I915_READ(gpio->reg) & GPIO_DATA_VAL_IN) != 0; + I915_WRITE_NOTRACE(gpio->reg, reserved | GPIO_DATA_DIR_MASK); + I915_WRITE_NOTRACE(gpio->reg, reserved); + return (I915_READ_NOTRACE(gpio->reg) & GPIO_DATA_VAL_IN) != 0; } static void set_clock(void *data, int state_high) @@ -124,8 +125,8 @@ static void set_clock(void *data, int state_high) clock_bits = GPIO_CLOCK_DIR_OUT | GPIO_CLOCK_DIR_MASK | GPIO_CLOCK_VAL_MASK; - I915_WRITE(gpio->reg, reserved | clock_bits); - POSTING_READ(gpio->reg); + I915_WRITE_NOTRACE(gpio->reg, reserved | clock_bits); + POSTING_READ_NOTRACE(gpio->reg); } static void set_data(void *data, int state_high) @@ -141,8 +142,8 @@ static void set_data(void *data, int state_high) data_bits = GPIO_DATA_DIR_OUT | GPIO_DATA_DIR_MASK | GPIO_DATA_VAL_MASK; - I915_WRITE(gpio->reg, reserved | data_bits); - POSTING_READ(gpio->reg); + I915_WRITE_NOTRACE(gpio->reg, reserved | data_bits); + POSTING_READ_NOTRACE(gpio->reg); } static struct i2c_adapter *