[RFC 02/12] drm/i915: Convert i915_reg_read_ioctl to use explicit mmio accessors

Tvrtko Ursulin
2019-06-07T12:08:44Z

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

No excuse for code located in intel_uncore.c to not use intel_uncore_
helpers.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/intel_uncore.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index f78668123f02..85171a8b866a 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1672,7 +1672,8 @@ static const struct reg_whitelist {
int i915_reg_read_ioctl(struct drm_device *dev,
void *data, struct drm_file *file)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
+ struct drm_i915_private *i915 = to_i915(dev);
+ struct intel_uncore *uncore = &i915->uncore;
struct drm_i915_reg_read *reg = data;
struct reg_whitelist const *entry;
intel_wakeref_t wakeref;
@@ -1689,7 +1690,7 @@ int i915_reg_read_ioctl(struct drm_device *dev,
GEM_BUG_ON(entry->size > 8);
GEM_BUG_ON(entry_offset & (entry->size - 1));

- if (INTEL_INFO(dev_priv)->gen_mask & entry->gen_mask &&
+ if (INTEL_INFO(i915)->gen_mask & entry->gen_mask &&
entry_offset == (reg->offset & -entry->size))
break;
entry++;
@@ -1701,18 +1702,22 @@ int i915_reg_read_ioctl(struct drm_device *dev,

flags = reg->offset & (entry->size - 1);

- with_intel_runtime_pm(dev_priv, wakeref) {
+ with_intel_runtime_pm(i915, wakeref) {
if (entry->size == 8 && flags == I915_REG_READ_8B_WA)
- reg->val = I915_READ64_2x32(entry->offset_ldw,
- entry->offset_udw);
+ reg->val = intel_uncore_read64_2x32(uncore,
+ entry->offset_ldw,
+ entry->offset_udw);
else if (entry->size == 8 && flags == 0)
- reg->val = I915_READ64(entry->offset_ldw);
+ reg->val = intel_uncore_read64(uncore,
+ entry->offset_ldw);
else if (entry->size == 4 && flags == 0)
- reg->val = I915_READ(entry->offset_ldw);
+ reg->val = intel_uncore_read(uncore, entry->offset_ldw);
else if (entry->size == 2 && flags == 0)
- reg->val = I915_READ16(entry->offset_ldw);
+ reg->val = intel_uncore_read16(uncore,
+ entry->offset_ldw);
else if (entry->size == 1 && flags == 0)
- reg->val = I915_READ8(entry->offset_ldw);
+ reg->val = intel_uncore_read8(uncore,
+ entry->offset_ldw);
else
ret = -EINVAL;
}
--
2.20.1