On 11/22/2024 9:44 PM, Dmitry Baryshkov wrote:
Rather than hand-coding UBWC_STATIC value calculation, define
corresponding bitfields and use them to setup the register value.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/msm/msm_mdss.c | 38 +++++++++++++++-----------
drivers/gpu/drm/msm/msm_mdss.h | 3 +-
drivers/gpu/drm/msm/registers/display/mdss.xml | 11 +++++++-
3 files changed, 34 insertions(+), 18 deletions(-)
<snip>
diff --git a/drivers/gpu/drm/msm/registers/display/mdss.xml b/drivers/gpu/drm/msm/registers/display/mdss.xml
index ac85caf1575c7908bcf68f0249da38dccf4f07b6..b6f93984928522a35a782cbad9de006eac225725 100644
--- a/drivers/gpu/drm/msm/registers/display/mdss.xml
+++ b/drivers/gpu/drm/msm/registers/display/mdss.xml
@@ -21,7 +21,16 @@ xsi:schemaLocation="https://gitlab.freedesktop.org/freedreno/ rules-fd.xsd">
<reg32 offset="0x00058" name="UBWC_DEC_HW_VERSION"/>
- <reg32 offset="0x00144" name="UBWC_STATIC"/>
+ <reg32 offset="0x00144" name="UBWC_STATIC">
+ <bitfield name="UBWC_SWIZZLE" low="0" high="2"/>
+ <bitfield name="UBWC_BANK_SPREAD" pos="3"/>
+ <!-- high=5 for UBWC < 4.0 -->
+ <bitfield name="HIGHEST_BANK_BIT" low="4" high="6"/>
+ <bitfield name="UBWC_MIN_ACC_LEN" pos="8"/>
MIN_ACC_LEN OR MALSIZE has 2 bits , bits 8 and 9.
But bit 9 is unused today. Hence we were using it as a 1 or 0 today.
Its unused on all the chipsets I checked. Do you want to continue using
the same way or correct this?
