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| /linux/drivers/gpu/drm/xe/ |
| H A D | xe_reg_sr.c | diff 5be84050ddce298503e7290d375b6dcf3ce920d2 Tue Mar 14 01:30:00 CET 2023 Lucas De Marchi <lucas.demarchi@intel.com> drm/xe/reg_sr: Tweak verbosity for register printing
If there is no register to save-restore or whitelist, just return. This
drops some noise from the log, particurlarly for platforms with several
engines like PVC:
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs0 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs0 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs1 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs1 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs2 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs2 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs5 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs5 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs6 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs6 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs7 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs7 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying bcs8 save-restore MMIOs
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs8 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying ccs0 save-restore MMIOs
[drm:xe_reg_sr_apply_mmio [xe]] REG[0x20e4] = 0x00008000
[drm:xe_reg_sr_apply_mmio [xe]] REG[0xb01c] = 0x00000001
[drm:xe_reg_sr_apply_mmio [xe]] REG[0xe48c] = 0x00000800
[drm:xe_reg_sr_apply_mmio [xe]] REG[0xe7c8] = 0x40000000
...
On a PVC system it should show something like below. Whitelist calls
are still there since they aren't actually empty - driver just doesn't
print each individual entry. This will be fixed in future.
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs0 registers
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs1 registers
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs2 registers
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs5 registers
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs6 registers
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs7 registers
[drm:xe_reg_sr_apply_whitelist [xe]] Whitelisting bcs8 registers
[drm:xe_reg_sr_apply_mmio [xe]] Applying ccs0 save-restore MMIOs
[drm:xe_reg_sr_apply_mmio [xe]] REG[0x20e4] = 0x00008000
[drm:xe_reg_sr_apply_mmio [xe]] REG[0xb01c] = 0x00000001
[drm:xe_reg_sr_apply_mmio [xe]] REG[0xe48c] = 0x00000800
[drm:xe_reg_sr_apply_mmio [xe]] REG[0xe7c8] = 0x40000000
v2: Only tweak log verbosity, leave the whitelist printout for later
since decoding the whitelist is more complex.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230314003012.2600353-3-lucas.demarchi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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