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drm/i915/gen9_lp: Fix DMC DC counter debugfs output

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On GEN9 LP (BXT/GLK) DC6 is not supported, so don't print the counter
on those platforms. So far we did this on GLK too.

While at it warn if we forgot to adjust the printout properly for a
new platform. (Rodrigo)

Testcase: igt/pm_dc/dc6-dpms
Cc: Jyoti Yadav <jyoti.r.yadav@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181031200220.11608-1-imre.deak@intel.com
This commit is contained in:
Imre Deak 2018-10-31 22:02:20 +02:00
parent 93b662d329
commit 34b2f8da9d
1 changed files with 7 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
drivers/gpu/drm/i915/i915_debugfs.c
View file

@ -2916,15 +2916,15 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
CSR_VERSION_MINOR(csr->version));
if (IS_BROXTON(dev_priv)) {
seq_printf(m, "DC3 -> DC5 count: %d\n",
I915_READ(BXT_CSR_DC3_DC5_COUNT));
} else if (IS_GEN(dev_priv, 9, 11)) {
seq_printf(m, "DC3 -> DC5 count: %d\n",
I915_READ(SKL_CSR_DC3_DC5_COUNT));
if (WARN_ON(INTEL_GEN(dev_priv) > 11))
goto out;
seq_printf(m, "DC3 -> DC5 count: %d\n",
I915_READ(IS_BROXTON(dev_priv) ? BXT_CSR_DC3_DC5_COUNT :
SKL_CSR_DC3_DC5_COUNT));
if (!IS_GEN9_LP(dev_priv))
seq_printf(m, "DC5 -> DC6 count: %d\n",
I915_READ(SKL_CSR_DC5_DC6_COUNT));
}
out:
seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));