On Tue, 31 Jan 2023, Lucas De Marchi <lucas.demarchi@xxxxxxxxx> wrote:
> Instead of using the common DISPLAY_MMIO_BASE(dev_priv) in all single
> macros, only use them in the macros that are to be used outside the
> header. This reduces the use of the implicit dev_priv, making it easier
> to remove it later.
>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 73 ++++++++++++++++++---------------
> 1 file changed, 39 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 943db8ec63f8..1cde3bcb9c88 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -1182,9 +1182,9 @@
> #define PM_VEBOX_CS_ERROR_INTERRUPT (1 << 12) /* hsw+ */
> #define PM_VEBOX_USER_INTERRUPT (1 << 10) /* hsw+ */
>
> -#define GT_PARITY_ERROR(dev_priv) \
> +#define GT_PARITY_ERROR(__i915) \
> (GT_RENDER_L3_PARITY_ERROR_INTERRUPT | \
> - (IS_HASWELL(dev_priv) ? GT_RENDER_L3_PARITY_ERROR_INTERRUPT_S1 : 0))
> + (IS_HASWELL(__i915) ? GT_RENDER_L3_PARITY_ERROR_INTERRUPT_S1 : 0))
Unrelated change.
>
> /* These are all the "old" interrupts */
> #define ILK_BSD_USER_INTERRUPT (1 << 5)
> @@ -1403,10 +1403,11 @@
> /*
> * Clock control & power management
> */
> -#define _DPLL_A (DISPLAY_MMIO_BASE(dev_priv) + 0x6014)
> -#define _DPLL_B (DISPLAY_MMIO_BASE(dev_priv) + 0x6018)
> -#define _CHV_DPLL_C (DISPLAY_MMIO_BASE(dev_priv) + 0x6030)
> -#define DPLL(pipe) _MMIO_PIPE3((pipe), _DPLL_A, _DPLL_B, _CHV_DPLL_C)
> +#define _DPLL_A 0x6014
> +#define _DPLL_B 0x6018
> +#define _CHV_DPLL_C 0x6030
> +#define DPLL(pipe) _MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
> + _PIPE3((pipe), _DPLL_A, _DPLL_B, _CHV_DPLL_C))
>
> #define VGA0 _MMIO(0x6000)
> #define VGA1 _MMIO(0x6004)
> @@ -1502,10 +1503,11 @@
> #define SDVO_MULTIPLIER_SHIFT_HIRES 4
> #define SDVO_MULTIPLIER_SHIFT_VGA 0
>
> -#define _DPLL_A_MD (DISPLAY_MMIO_BASE(dev_priv) + 0x601c)
> -#define _DPLL_B_MD (DISPLAY_MMIO_BASE(dev_priv) + 0x6020)
> -#define _CHV_DPLL_C_MD (DISPLAY_MMIO_BASE(dev_priv) + 0x603c)
> -#define DPLL_MD(pipe) _MMIO_PIPE3((pipe), _DPLL_A_MD, _DPLL_B_MD, _CHV_DPLL_C_MD)
> +#define _DPLL_A_MD 0x601c
> +#define _DPLL_B_MD 0x6020
> +#define _CHV_DPLL_C_MD 0x603c
> +#define DPLL_MD(pipe) _MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
> + _PIPE3((pipe), _DPLL_A_MD, _DPLL_B_MD, _CHV_DPLL_C_MD))
>
> /*
> * UDI pixel divider, controlling how many pixels are stuffed into a packet.
> @@ -3323,42 +3325,45 @@
> * is 20 bytes in each direction, hence the 5 fixed
> * data registers
> */
> -#define _DPA_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64010)
> -#define _DPA_AUX_CH_DATA1 (DISPLAY_MMIO_BASE(dev_priv) + 0x64014)
> -
> -#define _DPB_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64110)
> -#define _DPB_AUX_CH_DATA1 (DISPLAY_MMIO_BASE(dev_priv) + 0x64114)
> -
> -#define DP_AUX_CH_CTL(aux_ch) _MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL)
> -#define DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
> +#define _DPA_AUX_CH_CTL 0x64010
> +#define _DPA_AUX_CH_DATA1 0x64014
> +#define _DPB_AUX_CH_CTL 0x64110
> +#define _DPB_AUX_CH_DATA1 0x64114
> +#define DP_AUX_CH_CTL(aux_ch) _MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
> + _PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL))
> +#define DP_AUX_CH_DATA(aux_ch, i) \
> + _MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
> + _PORT(aux_ch, _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
>
> #define _XELPDP_USBC1_AUX_CH_CTL 0x16F210
> #define _XELPDP_USBC2_AUX_CH_CTL 0x16F410
> #define _XELPDP_USBC3_AUX_CH_CTL 0x16F610
> #define _XELPDP_USBC4_AUX_CH_CTL 0x16F810
>
> -#define XELPDP_DP_AUX_CH_CTL(aux_ch) _MMIO(_PICK(aux_ch, \
> - _DPA_AUX_CH_CTL, \
> - _DPB_AUX_CH_CTL, \
> - 0, /* port/aux_ch C is non-existent */ \
> - _XELPDP_USBC1_AUX_CH_CTL, \
> - _XELPDP_USBC2_AUX_CH_CTL, \
> - _XELPDP_USBC3_AUX_CH_CTL, \
> - _XELPDP_USBC4_AUX_CH_CTL))
> +#define XELPDP_DP_AUX_CH_CTL(aux_ch) _MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
Note that only VLV and CHV have DISPLAY_MMIO_BASE() != 0.
This is an XELPDP specific macro. Just drop the DISPLAY_MMIO_BASE() part
altogether, and you've removed an implicit dev_priv. Yay.
This also makes me think we should probably add VLV/CHV specific
DP_AUX_CH_CTL and DP_AUX_CH_DATA macros that just add VLV_DISPLAY_BASE
directly, and use that to ditch the implicit dev_priv there too. This
approach doesn't work for everything, but the aux channel stuff is both
fairly limited use and already has if ladders to pick the
registers. Handling VLV/CHV separately is not a big deal.
(DPLL on the other hand seems much harder to deal that way.)
