drm/i915: remove last traces of I915_READ_FW() and I915_WRITE_FW()

#define POSTING_READ(reg__)	__I915_REG_OP(posting_read, dev_priv, (reg__))

/* These are untraced mmio-accessors that are only valid to be used inside

 * critical sections, such as inside IRQ handlers, where forcewake is explicitly

 * controlled.

 *

 * Think twice, and think again, before using these.

 *

 * As an example, these accessors can possibly be used between:

 *

 * spin_lock_irq(&dev_priv->uncore.lock);

 * intel_uncore_forcewake_get__locked();

 *

 * and

 *

 * intel_uncore_forcewake_put__locked();

 * spin_unlock_irq(&dev_priv->uncore.lock);

 *

 *

 * Note: some registers may not need forcewake held, so

 * intel_uncore_forcewake_{get,put} can be omitted, see

 * intel_uncore_forcewake_for_reg().

 *

 * Certain architectures will die if the same cacheline is concurrently accessed

 * by different clients (e.g. on Ivybridge). Access to registers should

 * therefore generally be serialised, by either the dev_priv->uncore.lock or

 * a more localised lock guarding all access to that bank of registers.

 */

#define I915_READ_FW(reg__) __I915_REG_OP(read_fw, dev_priv, (reg__))

#define I915_WRITE_FW(reg__, val__) __I915_REG_OP(write_fw, dev_priv, (reg__), (val__))

/* i915_mm.c */

int remap_io_mapping(struct vm_area_struct *vma,

		     unsigned long addr, unsigned long pfn, unsigned long size,

 * This routine waits until the target register @reg contains the expected

 * @value after applying the @mask, i.e. it waits until ::

 *

 *     (I915_READ_FW(reg) & mask) == value

 *     (intel_uncore_read_fw(uncore, reg) & mask) == value

 *

 * Otherwise, the wait will timeout after @slow_timeout_ms milliseconds.

 * For atomic context @slow_timeout_ms must be zero and @fast_timeout_us

/*

 * Like above but the caller must manage the uncore.lock itself.

 * Must be used with I915_READ_FW and friends.

 * Must be used with intel_uncore_read_fw() and friends.

 */

void intel_uncore_forcewake_get__locked(struct intel_uncore *uncore,

					enum forcewake_domains domains);