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| author |   Jani Nikula <jani.nikula@intel.com> | 2024-10-28 21:48:39 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2024-10-30 11:15:51 +0200 |
| commit | c27cce227ebee4a45e180c7979ecf671cf12b57f (patch) | |
| tree | 3383312cfc525b94e56242f2fcbd4e8341ad2dde | |
| parent | drm/i915/display: convert display platforms to lower case (diff) | |
| download | wireguard-linux-c27cce227ebee4a45e180c7979ecf671cf12b57f.tar.xz wireguard-linux-c27cce227ebee4a45e180c7979ecf671cf12b57f.zip | |
drm/i915/display: add display platforms structure with platform members
Add a structure with a bitfield member for each platform and
subplatform, and initialize them in platform and subplatform descs.
The structure also contains a bitmap in a union for easier manipulation
of the bits. This, in turn, requires a bit of trickery with
INTEL_DISPLAY_PLATFORMS() to count the number of bits required for
DECLARE_BITMAP().
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bf1d828cd333d34862ad3198e282c9d294c6e1ad.1730144869.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_device.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_device.h | 19 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index fa871fedc6ec..81b433708eca 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -32,6 +32,7 @@ struct stepping_desc { .step_info.size = ARRAY_SIZE(_map) struct subplatform_desc { + struct intel_display_platforms platforms; enum intel_display_platform subplatform; const char *name; const u16 *pciidlist; @@ -39,10 +40,12 @@ struct subplatform_desc { }; #define SUBPLATFORM(_platform, _subplatform) \ + .platforms._platform##_##_subplatform = 1, \ .subplatform = (INTEL_DISPLAY_##_platform##_##_subplatform), \ .name = #_subplatform struct platform_desc { + struct intel_display_platforms platforms; enum intel_display_platform platform; const char *name; const struct subplatform_desc *subplatforms; @@ -51,6 +54,7 @@ struct platform_desc { }; #define PLATFORM(_platform) \ + .platforms._platform = 1, \ .platform = (INTEL_DISPLAY_##_platform), \ .name = #_platform diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h index eab7d9b1b487..17db88ba97f5 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.h +++ b/drivers/gpu/drm/i915/display/intel_display_device.h @@ -6,6 +6,7 @@ #ifndef __INTEL_DISPLAY_DEVICE_H__ #define __INTEL_DISPLAY_DEVICE_H__ +#include <linux/bitops.h> #include <linux/types.h> #include "intel_display_conversion.h" @@ -106,6 +107,24 @@ enum intel_display_platform { #undef __ENUM +#define __MEMBER(name) unsigned long name:1; +#define __COUNT(x) 1 + + +#define __NUM_PLATFORMS (INTEL_DISPLAY_PLATFORMS(__COUNT) 0) + +struct intel_display_platforms { + union { + struct { + INTEL_DISPLAY_PLATFORMS(__MEMBER); + }; + DECLARE_BITMAP(bitmap, __NUM_PLATFORMS); + }; +}; + +#undef __MEMBER +#undef __COUNT +#undef __NUM_PLATFORMS + #define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \ /* Keep in alphabetical order */ \ func(cursor_needs_physical); \ |