From: Ville Syrjala <ville.syrjala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: intel-xe@lists.freedesktop.org
Subject: [PATCH 09/11] drm/i915/bw: Print derated bandwidth numbers for DG2
Date: Thu, 28 May 2026 13:34:56 +0300 [thread overview]
Message-ID: <20260528103458.18069-10-ville.syrjala@linux.intel.com> (raw)
In-Reply-To: <20260528103458.18069-1-ville.syrjala@linux.intel.com>
From: Ville Syrjälä <ville.syrjala@linux.intel.com>
While DG2 is using hardcoded numbers for the memory bandwidth
stuff, let's still print them to aid in debugging as there are
two different SKUs to consider with different bandwidth numbers.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_bw.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 59df01b8ad7c..f4121223a58b 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -711,6 +711,10 @@ static void dg2_get_bw_info(struct intel_display *display)
display->bw.max[0].num_planes = U8_MAX;
display->bw.max[0].deratedbw[0] = display->platform.dg2_g11 ? 38000 : 50000;
+ drm_dbg_kms(display->drm,
+ "QGV 0: deratedbw=%u\n",
+ display->bw.max[0].deratedbw[0]);
+
/* Bandwidth does not depend on # of planes; set all groups the same */
for (i = 1; i < ARRAY_SIZE(display->bw.max); i++)
display->bw.max[i] = display->bw.max[0];
--
2.53.0
next prev parent reply other threads:[~2026-05-28 10:35 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-28 10:34 [PATCH 00/11] drm/i915/bw: Cleanups Ville Syrjala
2026-05-28 10:34 ` [PATCH 01/11] drm/i915/bw: Don't memcpy() pointlessly Ville Syrjala
2026-06-01 20:54 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 02/11] drm/i915/bw: Streamline dg2_get_bw_info() Ville Syrjala
2026-06-01 21:02 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 03/11] drm/i915/bw: Initialize num_planes sensibly for the first plane group in TGL+ Ville Syrjala
2026-06-04 14:46 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 04/11] drm/i915/bw: Move 'bi_next' to tighter scope Ville Syrjala
2026-06-04 14:48 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 05/11] drn/i915/bw: s/num_points/num_qgv_points/ Ville Syrjala
2026-06-04 14:49 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 06/11] drm/i915/bw: Move num_{qgv, psf}_points out from the plane group Ville Syrjala
2026-06-04 14:53 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 07/11] drm/i915/bw: Move psf_bw[] " Ville Syrjala
2026-06-04 14:55 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 08/11] drm/i915/bw: Move peakbw[] " Ville Syrjala
2026-06-04 14:57 ` Govindapillai, Vinod
2026-05-28 10:34 ` Ville Syrjala [this message]
2026-06-04 14:58 ` [PATCH 09/11] drm/i915/bw: Print derated bandwidth numbers for DG2 Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 10/11] drm/i915/bw: Use icl_qgv_bw() Ville Syrjala
2026-06-04 14:59 ` Govindapillai, Vinod
2026-06-04 15:12 ` Ville Syrjälä
2026-06-04 15:22 ` Govindapillai, Vinod
2026-06-04 15:31 ` Ville Syrjälä
2026-06-04 15:40 ` Govindapillai, Vinod
2026-05-28 10:34 ` [PATCH 11/11] drm/i915/bw: Simplify the best max_data_rate search Ville Syrjala
2026-06-04 16:14 ` Govindapillai, Vinod
2026-05-28 11:58 ` ✓ i915.CI.BAT: success for drm/i915/bw: Cleanups Patchwork
2026-05-28 18:10 ` ✗ i915.CI.Full: failure " Patchwork
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