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drm/i915/display: extract code to prepare qgv points mask

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BugLink: https://bugs.launchpad.net/bugs/2070158

Extract the code to prepare the QGV points mask as per the
format expected by the pcode as this could be utlized from
multiple points.

Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240405113533.338553-4-vinod.govindapillai@intel.com

(cherry picked from commit f09f95177dfd606e4bde234c65b991ae45e7ef65)
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Chris Chiu <chris.chiu@canonical.com>
Acked-by: Timo Aaltonen <tjaalton@ubuntu.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Vinod Govindapillai
2024-06-25 08:53:00 +02:00
committed by Stefan Bader
parent f97dc1ea22
commit 8d3066d409
1 changed files with 11 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/display/intel_bw.c
+11 -5
View File
@@ -851,6 +851,14 @@ static unsigned int icl_max_bw_qgv_point_mask(struct drm_i915_private *i915,
return max_bw_point;
}
static u16 icl_prepare_qgv_points_mask(struct drm_i915_private *i915,
unsigned int qgv_points,
unsigned int psf_points)
{
return ~(ICL_PCODE_REQ_QGV_PT(qgv_points) |
ADLS_PCODE_REQ_PSF_PT(psf_points)) & icl_qgv_points_mask(i915);
}
static int mtl_find_qgv_points(struct drm_i915_private *i915,
unsigned int data_rate,
unsigned int num_active_planes,
@@ -994,11 +1002,9 @@ static int icl_find_qgv_points(struct drm_i915_private *i915,
* We store the ones which need to be masked as that is what PCode
* actually accepts as a parameter.
*/
new_bw_state->qgv_points_mask =
~(ICL_PCODE_REQ_QGV_PT(qgv_points) |
ADLS_PCODE_REQ_PSF_PT(psf_points)) &
icl_qgv_points_mask(i915);
new_bw_state->qgv_points_mask = icl_prepare_qgv_points_mask(i915,
qgv_points,
psf_points);
/*
* If the actual mask had changed we need to make sure that
* the commits are serialized(in case this is a nomodeset, nonblocking)