[Intel-gfx] [PATCH v2 2/9] drm/i915: remove last traces of I915_READ_FW() and I915_WRITE_FW()
Jani Nikula
jani.nikula at intel.com
Fri Nov 13 13:24:32 UTC 2020
Good riddance! Remove the macros and their remaining references in
comments.
intel_uncore_read_fw() and intel_uncore_write_fw() should be used
instead.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 29 -----------------------------
drivers/gpu/drm/i915/intel_uncore.c | 2 +-
drivers/gpu/drm/i915/intel_uncore.h | 2 +-
3 files changed, 2 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 15be8debae54..fecb5899cbac 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1978,35 +1978,6 @@ int i915_reg_read_ioctl(struct drm_device *dev, void *data,
#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,
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 1c14a07eba7d..ef40edfff412 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -2070,7 +2070,7 @@ int i915_reg_read_ioctl(struct drm_device *dev,
* 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
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index bd2467284295..5dcb7f4183b2 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -216,7 +216,7 @@ void intel_uncore_forcewake_flush(struct intel_uncore *uncore,
/*
* 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);
--
2.20.1
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