From: Gustavo Sousa <gustavo.sousa@intel.com>
To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org
Cc: Gustavo Sousa <gustavo.sousa@intel.com>,
Jani Nikula <jani.nikula@intel.com>
Subject: [PATCH v2 4/4] drm/i915/bw: Extract get_display_bw_params()
Date: Mon, 11 May 2026 13:30:59 -0300 [thread overview]
Message-ID: <20260511-separate-platform-from-diplay-ip-specific-bw-params-v2-4-e762cb8662da@intel.com> (raw)
In-Reply-To: <20260511-separate-platform-from-diplay-ip-specific-bw-params-v2-0-e762cb8662da@intel.com>
Just like it is done for the platform-specific bandwidth parameters, use
a separate function named get_display_bw_params() to return the display
IP-specific parameters. This simplifies intel_bw_init_hw() by having
just one call for each of the *_get_bw_info() functions.
v2:
- Prefer to call get_display_bw_params() only once in
intel_bw_init_hw() instead of having multiple calls in each of the
affected *_get_bw_info() functions. (Jani)
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---
drivers/gpu/drm/i915/display/intel_bw.c | 36 +++++++++++++++++++++------------
1 file changed, 23 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index c01356d38e64..acd1b6901b46 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -493,6 +493,26 @@ static const struct intel_display_bw_params xelpdp_bw_params = {
.displayrtids = 256,
};
+static const struct intel_display_bw_params *get_display_bw_params(struct intel_display *display)
+{
+ if (DISPLAY_VER(display) >= 14) {
+ return &xelpdp_bw_params;
+ } else if (DISPLAY_VER(display) >= 12) {
+ /*
+ * RKL's SoC was based on ICL and the display, even though being
+ * gen12, had changes to the memory interface to match gen11's,
+ * consequently inheriting gen11's display-specific bandwidth
+ * parameters.
+ */
+ if (display->platform.rocketlake)
+ return &gen11_bw_params;
+ else
+ return &gen12_bw_params;
+ } else {
+ return &gen11_bw_params;
+ }
+}
+
static int icl_get_bw_info(struct intel_display *display,
const struct dram_info *dram_info,
const struct intel_soc_bw_params *soc_bw_params,
@@ -843,6 +863,7 @@ void intel_bw_init_hw(struct intel_display *display)
{
const struct dram_info *dram_info = intel_dram_info(display);
const struct intel_soc_bw_params *soc_bw_params = get_soc_bw_params(display);
+ const struct intel_display_bw_params *display_bw_params = get_display_bw_params(display);
if (!HAS_DISPLAY(display))
return;
@@ -858,23 +879,12 @@ void intel_bw_init_hw(struct intel_display *display)
if (DISPLAY_VERx100(display) >= 1401 && display->platform.dgfx) {
xe2_hpd_get_bw_info(display, dram_info, soc_bw_params);
- } else if (DISPLAY_VER(display) >= 14) {
- tgl_get_bw_info(display, dram_info, soc_bw_params, &xelpdp_bw_params);
} else if (display->platform.dg2) {
dg2_get_bw_info(display);
} else if (DISPLAY_VER(display) >= 12) {
- /*
- * RKL's SoC was based on ICL and the display, even though being
- * gen12, had changes to the memory interface to match gen11's,
- * consequently inheriting gen11's display-specific bandwidth
- * parameters.
- */
- if (display->platform.rocketlake)
- tgl_get_bw_info(display, dram_info, soc_bw_params, &gen11_bw_params);
- else
- tgl_get_bw_info(display, dram_info, soc_bw_params, &gen12_bw_params);
+ tgl_get_bw_info(display, dram_info, soc_bw_params, display_bw_params);
} else if (DISPLAY_VER(display) == 11) {
- icl_get_bw_info(display, dram_info, soc_bw_params, &gen11_bw_params);
+ icl_get_bw_info(display, dram_info, soc_bw_params, display_bw_params);
}
}
--
2.53.0
next prev parent reply other threads:[~2026-05-11 16:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-11 16:30 [PATCH v2 0/4] drm/i915/bw: Split bandwidth params into platform- and display-IP-specific structs Gustavo Sousa
2026-05-11 16:30 ` [PATCH v2 1/4] drm/i915/bw: Extract platform-specific parameters Gustavo Sousa
2026-05-11 22:38 ` Matt Roper
2026-05-12 8:18 ` Jani Nikula
2026-05-12 13:14 ` Gustavo Sousa
2026-05-12 13:05 ` Gustavo Sousa
2026-05-11 16:30 ` [PATCH v2 2/4] drm/i915/bw: Deduplicate intel_sa_info instances Gustavo Sousa
2026-05-11 22:43 ` Matt Roper
2026-05-11 16:30 ` [PATCH v2 3/4] drm/i915/bw: Rename struct intel_sa_info to intel_display_bw_params Gustavo Sousa
2026-05-11 22:44 ` Matt Roper
2026-05-11 16:30 ` Gustavo Sousa [this message]
2026-05-11 22:49 ` [PATCH v2 4/4] drm/i915/bw: Extract get_display_bw_params() Matt Roper
2026-05-12 8:22 ` Jani Nikula
2026-05-12 13:33 ` Gustavo Sousa
2026-05-12 13:30 ` Gustavo Sousa
2026-05-11 22:15 ` ✓ CI.KUnit: success for drm/i915/bw: Split bandwidth params into platform- and display-IP-specific structs Patchwork
2026-05-11 23:29 ` ✓ Xe.CI.BAT: " Patchwork
2026-05-12 2:07 ` ✗ Xe.CI.FULL: failure " Patchwork
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260511-separate-platform-from-diplay-ip-specific-bw-params-v2-4-e762cb8662da@intel.com \
--to=gustavo.sousa@intel.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=intel-xe@lists.freedesktop.org \
--cc=jani.nikula@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).