Re: [v4 11/20] drm/i915: Remove i915_reg.h from g4x_dp.c

[Jani Nikula <jani.nikula@intel.com>]

On Thu, 05 Feb 2026, Uma Shankar <uma.shankar@intel.com> wrote:
> Move DE_IRQ_REGS to display header to make g4x_dp.c
> free from i915_reg.h dependency. These registers are
> only used by display and gvt.
>
> v3: Drop a superfluous include (Jani)
>
> v2: Move DE interrupt regs from common to display header (Jani)
>
> Signed-off-by: Uma Shankar <uma.shankar@intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/i915/display/g4x_dp.c            |  1 -
>  .../gpu/drm/i915/display/intel_display_regs.h    | 16 ++++++++++++++++
>  drivers/gpu/drm/i915/i915_reg.h                  | 15 ---------------
>  3 files changed, 16 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/g4x_dp.c b/drivers/gpu/drm/i915/display/g4x_dp.c
> index 4cb753177fd8..d7de329abf19 100644
> --- a/drivers/gpu/drm/i915/display/g4x_dp.c
> +++ b/drivers/gpu/drm/i915/display/g4x_dp.c
> @@ -10,7 +10,6 @@
>  #include <drm/drm_print.h>
>  
>  #include "g4x_dp.h"
> -#include "i915_reg.h"
>  #include "intel_audio.h"
>  #include "intel_backlight.h"
>  #include "intel_connector.h"
> diff --git a/drivers/gpu/drm/i915/display/intel_display_regs.h b/drivers/gpu/drm/i915/display/intel_display_regs.h
> index d03f554ecd7e..5bc891f6de57 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_regs.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_regs.h
> @@ -1049,6 +1049,15 @@
>  #define SWF3(dev_priv, i)	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x72414 + (i) * 4)
>  #define SWF_ILK(i)	_MMIO(0x4F000 + (i) * 4)
>  
> +#define DEISR   _MMIO(0x44000)
> +#define DEIMR   _MMIO(0x44004)
> +#define DEIIR   _MMIO(0x44008)
> +#define DEIER   _MMIO(0x4400c)
> +
> +#define DE_IRQ_REGS		I915_IRQ_REGS(DEIMR, \
> +					      DEIER, \
> +					      DEIIR)
> +
>  #define DIGITAL_PORT_HOTPLUG_CNTRL	_MMIO(0x44030)
>  #define  DIGITAL_PORTA_HOTPLUG_ENABLE		(1 << 4)
>  #define  DIGITAL_PORTA_PULSE_DURATION_2ms	(0 << 2) /* pre-HSW */
> @@ -1792,6 +1801,13 @@
>  					 SDE_TC_HOTPLUG_ICP(HPD_PORT_TC2) | \
>  					 SDE_TC_HOTPLUG_ICP(HPD_PORT_TC1))
>  
> +/* PCH */
> +
> +#define SDEISR  _MMIO(0xc4000)
> +#define SDEIMR  _MMIO(0xc4004)
> +#define SDEIIR  _MMIO(0xc4008)
> +#define SDEIER  _MMIO(0xc400c)
> +
>  #define SDE_IRQ_REGS			I915_IRQ_REGS(SDEIMR, \
>  						      SDEIER, \
>  						      SDEIIR)
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 1be8426b6a91..b808d1ec5387 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -727,15 +727,6 @@
>  #define VLV_MASTER_IER			_MMIO(0x4400c) /* Gunit master IER */
>  #define   MASTER_INTERRUPT_ENABLE	(1 << 31)
>  
> -#define DEISR   _MMIO(0x44000)
> -#define DEIMR   _MMIO(0x44004)
> -#define DEIIR   _MMIO(0x44008)
> -#define DEIER   _MMIO(0x4400c)
> -
> -#define DE_IRQ_REGS		I915_IRQ_REGS(DEIMR, \
> -					      DEIER, \
> -					      DEIIR)
> -
>  #define GTISR   _MMIO(0x44010)
>  #define GTIMR   _MMIO(0x44014)
>  #define GTIIR   _MMIO(0x44018)
> @@ -863,12 +854,6 @@
>  #define   MASK_WAKEMEM				REG_BIT(13)
>  #define   DDI_CLOCK_REG_ACCESS			REG_BIT(7)
>  
> -/* PCH */
> -
> -#define SDEISR  _MMIO(0xc4000)
> -#define SDEIMR  _MMIO(0xc4004)
> -#define SDEIIR  _MMIO(0xc4008)
> -#define SDEIER  _MMIO(0xc400c)
>  
>  /* Icelake PPS_DATA and _ECC DIP Registers.
>   * These are available for transcoders B,C and eDP.

-- 
Jani Nikula, Intel