[PATCH 1/2] drm/xe: change the power gating register names
Rodrigo Vivi
rodrigo.vivi at intel.com
Wed May 15 02:59:14 UTC 2024
On Tue, May 14, 2024 at 12:13:08PM +0530, Riana Tauro wrote:
> change
Probably good to start with Capital letter here and in the subject.
(not that I follow good standards myself on this, right Francois? ;) )
power gating vd registers naming to n-form
reading here I was thinking: What's VD? What's n-form?
Only after reading the patch it made some sense.
Perhaps only a message saying:
"Standardize power gate registers." should be enough.
> change PG_ENABLE to POWERGATE_ENABLE.
>
> No functional changes
>
> Cc: Gustavo Sousa <gustavo.sousa at intel.com>
> Signed-off-by: Riana Tauro <riana.tauro at intel.com>
> ---
> drivers/gpu/drm/xe/regs/xe_gt_regs.h | 8 +++-----
> drivers/gpu/drm/xe/xe_gt_idle.c | 2 +-
> drivers/gpu/drm/xe/xe_wa.c | 10 +++++-----
> 3 files changed, 9 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> index 9cacdcfe27ff..7c173db7d585 100644
> --- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> +++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> @@ -316,11 +316,9 @@
>
> #define FORCEWAKE_GT XE_REG(0xa188)
>
> -#define PG_ENABLE XE_REG(0xa210)
> -#define VD2_MFXVDENC_POWERGATE_ENABLE REG_BIT(8)
> -#define VD2_HCP_POWERGATE_ENABLE REG_BIT(7)
> -#define VD0_MFXVDENC_POWERGATE_ENABLE REG_BIT(4)
> -#define VD0_HCP_POWERGATE_ENABLE REG_BIT(3)
> +#define POWERGATE_ENABLE XE_REG(0xa210)
> +#define VDN_HCP_POWERGATE_ENABLE(n) REG_BIT(3 + 2 * (n))
> +#define VDN_MFXVDENC_POWERGATE_ENABLE(n) REG_BIT(4 + 2 * (n))
>
> #define CTC_MODE XE_REG(0xa26c)
> #define CTC_SHIFT_PARAMETER_MASK REG_GENMASK(2, 1)
> diff --git a/drivers/gpu/drm/xe/xe_gt_idle.c b/drivers/gpu/drm/xe/xe_gt_idle.c
> index a4f6f0a96d05..4384f7e80258 100644
> --- a/drivers/gpu/drm/xe/xe_gt_idle.c
> +++ b/drivers/gpu/drm/xe/xe_gt_idle.c
> @@ -202,7 +202,7 @@ void xe_gt_idle_disable_c6(struct xe_gt *gt)
> xe_device_assert_mem_access(gt_to_xe(gt));
> xe_force_wake_assert_held(gt_to_fw(gt), XE_FORCEWAKE_ALL);
>
> - xe_mmio_write32(gt, PG_ENABLE, 0);
> + xe_mmio_write32(gt, POWERGATE_ENABLE, 0);
> xe_mmio_write32(gt, RC_CONTROL, 0);
> xe_mmio_write32(gt, RC_STATE, 0);
> }
> diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
> index 05db53c1448c..64bc595fc727 100644
> --- a/drivers/gpu/drm/xe/xe_wa.c
> +++ b/drivers/gpu/drm/xe/xe_wa.c
> @@ -238,11 +238,11 @@ static const struct xe_rtp_entry_sr gt_was[] = {
> },
> { XE_RTP_NAME("14020316580"),
> XE_RTP_RULES(MEDIA_VERSION(1301)),
> - XE_RTP_ACTIONS(CLR(PG_ENABLE,
> - VD0_HCP_POWERGATE_ENABLE |
> - VD0_MFXVDENC_POWERGATE_ENABLE |
> - VD2_HCP_POWERGATE_ENABLE |
> - VD2_MFXVDENC_POWERGATE_ENABLE)),
> + XE_RTP_ACTIONS(CLR(POWERGATE_ENABLE,
> + VDN_HCP_POWERGATE_ENABLE(0) |
> + VDN_MFXVDENC_POWERGATE_ENABLE(0) |
> + VDN_HCP_POWERGATE_ENABLE(2) |
> + VDN_MFXVDENC_POWERGATE_ENABLE(2))),
For the patch itself everything looks good.
With the commit message improved:
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> },
> { XE_RTP_NAME("14019449301"),
> XE_RTP_RULES(MEDIA_VERSION(1301), ENGINE_CLASS(VIDEO_DECODE)),
> --
> 2.40.0
>
More information about the Intel-xe
mailing list