[Intel-gfx] [PATCH 11/13] drm/i915/dsb: Add mode DSB opcodes

Manna, Animesh animesh.manna at intel.com
Thu Jan 5 15:22:18 UTC 2023



> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: Friday, December 16, 2022 6:08 AM
> To: intel-gfx at lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH 11/13] drm/i915/dsb: Add mode DSB opcodes
> 
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Add all the know DSB instruction opcodes.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dsb.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c
> b/drivers/gpu/drm/i915/display/intel_dsb.c
> index 7c593ec84d41..96bc117fd6a0 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsb.c
> +++ b/drivers/gpu/drm/i915/display/intel_dsb.c
> @@ -67,8 +67,16 @@ struct intel_dsb {
> 
>  /* DSB opcodes. */
>  #define DSB_OPCODE_SHIFT		24
> +#define DSB_OPCODE_NOOP			0x0
>  #define DSB_OPCODE_MMIO_WRITE		0x1
> +#define DSB_OPCODE_WAIT_USEC		0x2
> +#define DSB_OPCODE_WAIT_LINES		0x3
> +#define DSB_OPCODE_WAIT_VBLANKS		0x4
> +#define DSB_OPCODE_WAIT_DSL_IN		0x5
> +#define DSB_OPCODE_WAIT_DSL_OUT		0x6
> +#define DSB_OPCODE_INTERRUPT		0x7
>  #define DSB_OPCODE_INDEXED_WRITE	0x9
> +#define DSB_OPCODE_POLL			0xA
>  #define DSB_BYTE_EN			0xF
>  #define DSB_BYTE_EN_SHIFT		20
>  #define DSB_REG_VALUE_MASK		0xfffff

Not sure if we can check-in the above macros without its usage.

Regards,
Animesh

> --
> 2.37.4



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