[Intel-gfx] [PATCH v2 1/5] drm/i915: extract fixed point math to i915_fixed.h
Jani Nikula
jani.nikula at intel.com
Fri Nov 16 12:07:25 UTC 2018
Reduce bloat in one of the bigger header files. Fix some indentation
while at it. No functional changes.
v2: Add include guards (Joonas)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 139 +----------------------------------
drivers/gpu/drm/i915/i915_fixed.h | 147 ++++++++++++++++++++++++++++++++++++++
2 files changed, 148 insertions(+), 138 deletions(-)
create mode 100644 drivers/gpu/drm/i915/i915_fixed.h
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d69b71d368d3..9c2597a2784c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -54,6 +54,7 @@
#include <drm/drm_cache.h>
#include <drm/drm_util.h>
+#include "i915_fixed.h"
#include "i915_params.h"
#include "i915_reg.h"
#include "i915_utils.h"
@@ -127,144 +128,6 @@ bool i915_error_injected(void);
__i915_printk(i915, i915_error_injected() ? KERN_DEBUG : KERN_ERR, \
fmt, ##__VA_ARGS__)
-typedef struct {
- uint32_t val;
-} uint_fixed_16_16_t;
-
-#define FP_16_16_MAX ({ \
- uint_fixed_16_16_t fp; \
- fp.val = UINT_MAX; \
- fp; \
-})
-
-static inline bool is_fixed16_zero(uint_fixed_16_16_t val)
-{
- if (val.val == 0)
- return true;
- return false;
-}
-
-static inline uint_fixed_16_16_t u32_to_fixed16(uint32_t val)
-{
- uint_fixed_16_16_t fp;
-
- WARN_ON(val > U16_MAX);
-
- fp.val = val << 16;
- return fp;
-}
-
-static inline uint32_t fixed16_to_u32_round_up(uint_fixed_16_16_t fp)
-{
- return DIV_ROUND_UP(fp.val, 1 << 16);
-}
-
-static inline uint32_t fixed16_to_u32(uint_fixed_16_16_t fp)
-{
- return fp.val >> 16;
-}
-
-static inline uint_fixed_16_16_t min_fixed16(uint_fixed_16_16_t min1,
- uint_fixed_16_16_t min2)
-{
- uint_fixed_16_16_t min;
-
- min.val = min(min1.val, min2.val);
- return min;
-}
-
-static inline uint_fixed_16_16_t max_fixed16(uint_fixed_16_16_t max1,
- uint_fixed_16_16_t max2)
-{
- uint_fixed_16_16_t max;
-
- max.val = max(max1.val, max2.val);
- return max;
-}
-
-static inline uint_fixed_16_16_t clamp_u64_to_fixed16(uint64_t val)
-{
- uint_fixed_16_16_t fp;
- WARN_ON(val > U32_MAX);
- fp.val = (uint32_t) val;
- return fp;
-}
-
-static inline uint32_t div_round_up_fixed16(uint_fixed_16_16_t val,
- uint_fixed_16_16_t d)
-{
- return DIV_ROUND_UP(val.val, d.val);
-}
-
-static inline uint32_t mul_round_up_u32_fixed16(uint32_t val,
- uint_fixed_16_16_t mul)
-{
- uint64_t intermediate_val;
-
- intermediate_val = (uint64_t) val * mul.val;
- intermediate_val = DIV_ROUND_UP_ULL(intermediate_val, 1 << 16);
- WARN_ON(intermediate_val > U32_MAX);
- return (uint32_t) intermediate_val;
-}
-
-static inline uint_fixed_16_16_t mul_fixed16(uint_fixed_16_16_t val,
- uint_fixed_16_16_t mul)
-{
- uint64_t intermediate_val;
-
- intermediate_val = (uint64_t) val.val * mul.val;
- intermediate_val = intermediate_val >> 16;
- return clamp_u64_to_fixed16(intermediate_val);
-}
-
-static inline uint_fixed_16_16_t div_fixed16(uint32_t val, uint32_t d)
-{
- uint64_t interm_val;
-
- interm_val = (uint64_t)val << 16;
- interm_val = DIV_ROUND_UP_ULL(interm_val, d);
- return clamp_u64_to_fixed16(interm_val);
-}
-
-static inline uint32_t div_round_up_u32_fixed16(uint32_t val,
- uint_fixed_16_16_t d)
-{
- uint64_t interm_val;
-
- interm_val = (uint64_t)val << 16;
- interm_val = DIV_ROUND_UP_ULL(interm_val, d.val);
- WARN_ON(interm_val > U32_MAX);
- return (uint32_t) interm_val;
-}
-
-static inline uint_fixed_16_16_t mul_u32_fixed16(uint32_t val,
- uint_fixed_16_16_t mul)
-{
- uint64_t intermediate_val;
-
- intermediate_val = (uint64_t) val * mul.val;
- return clamp_u64_to_fixed16(intermediate_val);
-}
-
-static inline uint_fixed_16_16_t add_fixed16(uint_fixed_16_16_t add1,
- uint_fixed_16_16_t add2)
-{
- uint64_t interm_sum;
-
- interm_sum = (uint64_t) add1.val + add2.val;
- return clamp_u64_to_fixed16(interm_sum);
-}
-
-static inline uint_fixed_16_16_t add_fixed16_u32(uint_fixed_16_16_t add1,
- uint32_t add2)
-{
- uint64_t interm_sum;
- uint_fixed_16_16_t interm_add2 = u32_to_fixed16(add2);
-
- interm_sum = (uint64_t) add1.val + interm_add2.val;
- return clamp_u64_to_fixed16(interm_sum);
-}
-
enum hpd_pin {
HPD_NONE = 0,
HPD_TV = HPD_NONE, /* TV is known to be unreliable */
diff --git a/drivers/gpu/drm/i915/i915_fixed.h b/drivers/gpu/drm/i915/i915_fixed.h
new file mode 100644
index 000000000000..c974e51c6d8b
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_fixed.h
@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2018 Intel Corporation
+ */
+
+#ifndef _I915_FIXED_H_
+#define _I915_FIXED_H_
+
+typedef struct {
+ uint32_t val;
+} uint_fixed_16_16_t;
+
+#define FP_16_16_MAX ({ \
+ uint_fixed_16_16_t fp; \
+ fp.val = UINT_MAX; \
+ fp; \
+})
+
+static inline bool is_fixed16_zero(uint_fixed_16_16_t val)
+{
+ if (val.val == 0)
+ return true;
+ return false;
+}
+
+static inline uint_fixed_16_16_t u32_to_fixed16(uint32_t val)
+{
+ uint_fixed_16_16_t fp;
+
+ WARN_ON(val > U16_MAX);
+
+ fp.val = val << 16;
+ return fp;
+}
+
+static inline uint32_t fixed16_to_u32_round_up(uint_fixed_16_16_t fp)
+{
+ return DIV_ROUND_UP(fp.val, 1 << 16);
+}
+
+static inline uint32_t fixed16_to_u32(uint_fixed_16_16_t fp)
+{
+ return fp.val >> 16;
+}
+
+static inline uint_fixed_16_16_t min_fixed16(uint_fixed_16_16_t min1,
+ uint_fixed_16_16_t min2)
+{
+ uint_fixed_16_16_t min;
+
+ min.val = min(min1.val, min2.val);
+ return min;
+}
+
+static inline uint_fixed_16_16_t max_fixed16(uint_fixed_16_16_t max1,
+ uint_fixed_16_16_t max2)
+{
+ uint_fixed_16_16_t max;
+
+ max.val = max(max1.val, max2.val);
+ return max;
+}
+
+static inline uint_fixed_16_16_t clamp_u64_to_fixed16(uint64_t val)
+{
+ uint_fixed_16_16_t fp;
+ WARN_ON(val > U32_MAX);
+ fp.val = (uint32_t) val;
+ return fp;
+}
+
+static inline uint32_t div_round_up_fixed16(uint_fixed_16_16_t val,
+ uint_fixed_16_16_t d)
+{
+ return DIV_ROUND_UP(val.val, d.val);
+}
+
+static inline uint32_t mul_round_up_u32_fixed16(uint32_t val,
+ uint_fixed_16_16_t mul)
+{
+ uint64_t intermediate_val;
+
+ intermediate_val = (uint64_t) val * mul.val;
+ intermediate_val = DIV_ROUND_UP_ULL(intermediate_val, 1 << 16);
+ WARN_ON(intermediate_val > U32_MAX);
+ return (uint32_t) intermediate_val;
+}
+
+static inline uint_fixed_16_16_t mul_fixed16(uint_fixed_16_16_t val,
+ uint_fixed_16_16_t mul)
+{
+ uint64_t intermediate_val;
+
+ intermediate_val = (uint64_t) val.val * mul.val;
+ intermediate_val = intermediate_val >> 16;
+ return clamp_u64_to_fixed16(intermediate_val);
+}
+
+static inline uint_fixed_16_16_t div_fixed16(uint32_t val, uint32_t d)
+{
+ uint64_t interm_val;
+
+ interm_val = (uint64_t)val << 16;
+ interm_val = DIV_ROUND_UP_ULL(interm_val, d);
+ return clamp_u64_to_fixed16(interm_val);
+}
+
+static inline uint32_t div_round_up_u32_fixed16(uint32_t val,
+ uint_fixed_16_16_t d)
+{
+ uint64_t interm_val;
+
+ interm_val = (uint64_t)val << 16;
+ interm_val = DIV_ROUND_UP_ULL(interm_val, d.val);
+ WARN_ON(interm_val > U32_MAX);
+ return (uint32_t) interm_val;
+}
+
+static inline uint_fixed_16_16_t mul_u32_fixed16(uint32_t val,
+ uint_fixed_16_16_t mul)
+{
+ uint64_t intermediate_val;
+
+ intermediate_val = (uint64_t) val * mul.val;
+ return clamp_u64_to_fixed16(intermediate_val);
+}
+
+static inline uint_fixed_16_16_t add_fixed16(uint_fixed_16_16_t add1,
+ uint_fixed_16_16_t add2)
+{
+ uint64_t interm_sum;
+
+ interm_sum = (uint64_t) add1.val + add2.val;
+ return clamp_u64_to_fixed16(interm_sum);
+}
+
+static inline uint_fixed_16_16_t add_fixed16_u32(uint_fixed_16_16_t add1,
+ uint32_t add2)
+{
+ uint64_t interm_sum;
+ uint_fixed_16_16_t interm_add2 = u32_to_fixed16(add2);
+
+ interm_sum = (uint64_t) add1.val + interm_add2.val;
+ return clamp_u64_to_fixed16(interm_sum);
+}
+
+#endif /* _I915_FIXED_H_ */
--
2.11.0
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