From: "Kumar, Mahesh" <mahesh1.kumar@xxxxxxxxx>
fixed_16_16_div_round_up(_u64), wrapper for fixed_16_16 division
operation don't really round_up the result. Wrapper round_up only the
fraction part of the result to make it 16-bit.
This patch eliminates round_up keyword from the wrapper.
Later patch will introduce the new wrapper to do rounding-off the result
and give unt32_t output to cleanup mix use of fixed_16_16_t & uint32_t
variables.
Signed-off-by: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 6 ++----
drivers/gpu/drm/i915/intel_pm.c | 6 +++---
2 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a6f20471b4cd..a6042013cd75 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -153,8 +153,7 @@ static inline uint_fixed_16_16_t max_fixed_16_16(uint_fixed_16_16_t max1,
return max;
}
-static inline uint_fixed_16_16_t fixed_16_16_div_round_up(uint32_t val,
- uint32_t d)
+static inline uint_fixed_16_16_t fixed_16_16_div(uint32_t val, uint32_t d)
{
uint_fixed_16_16_t fp, res;
@@ -163,8 +162,7 @@ static inline uint_fixed_16_16_t fixed_16_16_div_round_up(uint32_t val,
return res;
}
-static inline uint_fixed_16_16_t fixed_16_16_div_round_up_u64(uint32_t val,
- uint32_t d)
+static inline uint_fixed_16_16_t fixed_16_16_div_u64(uint32_t val, uint32_t d)
{
uint_fixed_16_16_t res;
uint64_t interm_val;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ef0e9f8d4dbd..d12bbe651dd5 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4165,7 +4165,7 @@ static uint_fixed_16_16_t skl_wm_method1(uint32_t pixel_rate, uint8_t cpp,
return FP_16_16_MAX;
wm_intermediate_val = latency * pixel_rate * cpp;
- ret = fixed_16_16_div_round_up_u64(wm_intermediate_val, 1000 * 512);
+ ret = fixed_16_16_div_u64(wm_intermediate_val, 1000 * 512);
return ret;
}
@@ -4301,8 +4301,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
if (y_tiled) {
interm_pbpl = DIV_ROUND_UP(plane_bytes_per_line *
y_min_scanlines, 512);
- plane_blocks_per_line =
- fixed_16_16_div_round_up(interm_pbpl, y_min_scanlines);
+ plane_blocks_per_line = fixed_16_16_div(interm_pbpl,
+ y_min_scanlines);
} else if (x_tiled) {
interm_pbpl = DIV_ROUND_UP(plane_bytes_per_line, 512);
plane_blocks_per_line = u32_to_fixed_16_16(interm_pbpl);
--
2.11.0
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