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| author | Jani Nikula <jani.nikula@intel.com> | 2022-11-09 18:35:19 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2022-11-11 13:19:28 +0300 |
| commit | da2549576b7be2b465908709dad50810a084cce4 (patch) | |
| tree | d418c3aada8917b32e4a69157ae88564f671400d /drivers/gpu/drm/i915/i915_reg_defs.h | |
| parent | 764afecbbcd26bea57fcd928680d413b2c851590 (diff) | |
| download | linux-da2549576b7be2b465908709dad50810a084cce4.tar.xz | |
drm/i915/reg: move masked field helpers to i915_reg_defs.h
This is a more logical place for generic helpers.
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5161a0c6d98df206c6c4c1add3fc3f2f408020b1.1668008071.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg_defs.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg_defs.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg_defs.h b/drivers/gpu/drm/i915/i915_reg_defs.h index 8f486f77609f..7536f1b72778 100644 --- a/drivers/gpu/drm/i915/i915_reg_defs.h +++ b/drivers/gpu/drm/i915/i915_reg_defs.h @@ -98,6 +98,19 @@ */ #define REG_FIELD_GET64(__mask, __val) ((u64)FIELD_GET(__mask, __val)) +#define __MASKED_FIELD(mask, value) ((mask) << 16 | (value)) +#define _MASKED_FIELD(mask, value) ({ \ + if (__builtin_constant_p(mask)) \ + BUILD_BUG_ON_MSG(((mask) & 0xffff0000), "Incorrect mask"); \ + if (__builtin_constant_p(value)) \ + BUILD_BUG_ON_MSG((value) & 0xffff0000, "Incorrect value"); \ + if (__builtin_constant_p(mask) && __builtin_constant_p(value)) \ + BUILD_BUG_ON_MSG((value) & ~(mask), \ + "Incorrect value for mask"); \ + __MASKED_FIELD(mask, value); }) +#define _MASKED_BIT_ENABLE(a) ({ typeof(a) _a = (a); _MASKED_FIELD(_a, _a); }) +#define _MASKED_BIT_DISABLE(a) (_MASKED_FIELD((a), 0)) + typedef struct { u32 reg; } i915_reg_t; |