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| author | Mika Kuoppala | 2015-12-15 18:45:42 +0100 |
|---|---|---|
| committer | Mika Kuoppala | 2016-01-08 12:14:13 +0100 |
| commit | 8ac3e1bb76cc2e1585be3a5fa7551480e69487c8 (patch) | |
| tree | 5d85037bfce8f91e21b03dff73453b3cbf733610 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | drm/i915: Streamline unclaimed reg debug trace (diff) | |
| download | kernel-qcow2-linux-8ac3e1bb76cc2e1585be3a5fa7551480e69487c8.tar.gz kernel-qcow2-linux-8ac3e1bb76cc2e1585be3a5fa7551480e69487c8.tar.xz kernel-qcow2-linux-8ac3e1bb76cc2e1585be3a5fa7551480e69487c8.zip | |
drm/i915: Add non claimed mmio checking for vlv/chv
Imre mentioned that chv might also have capability to
track unclaimed mmio accesses. Ville added that
both chv and vlv has this capability and he had already
made this way back [1]. Mimic what Ville's patch does
but adapt on top of less frequent mmio accesses by
omitting checking always on reg writes.
This patch is untested as of now.
v2: overflow handling and posting omitted (Ville)
References: [1] http://lists.freedesktop.org/archives/intel-gfx/2013-May/027599.html
Cc: Imre Deak <imre.deak@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450201542-22918-1-git-send-email-mika.kuoppala@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 7510d508e373..556a458d669e 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1711,6 +1711,11 @@ enum skl_disp_power_wells { #define FPGA_DBG _MMIO(0x42300) #define FPGA_DBG_RM_NOCLAIM (1<<31) +#define CLAIM_ER _MMIO(VLV_DISPLAY_BASE + 0x2028) +#define CLAIM_ER_CLR (1 << 31) +#define CLAIM_ER_OVERFLOW (1 << 16) +#define CLAIM_ER_CTR_MASK 0xffff + #define DERRMR _MMIO(0x44050) /* Note that HBLANK events are reserved on bdw+ */ #define DERRMR_PIPEA_SCANLINE (1<<0) |