From: Anshuman Gupta <anshuman.gu...@intel.com>
Update the DMC_DEBUG_DC5 register to its new location and do not try
reading the DC6 counter since DG1 doesn't support DC6.
v2: Use IS_DGFX() instead of IS_DG1(). Even if not having DC6 is not
directly related to DGFX, the register move to a new location is. So in
future, if there is one supporting DC6, it would just need to add the
other register rather than fixing the case of a wrong register being
read (Matt)
Cc: Uma Shankar <uma.shan...@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gu...@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demar...@intel.com>
Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
---
drivers/gpu/drm/i915/display/intel_display_debugfs.c | 9 +++++++--
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 0bf31f9a8af5..cfb4c1474982 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -518,8 +518,13 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
CSR_VERSION_MINOR(csr->version));
if (INTEL_GEN(dev_priv) >= 12) {
- dc5_reg = TGL_DMC_DEBUG_DC5_COUNT;
- dc6_reg = TGL_DMC_DEBUG_DC6_COUNT;
+ if (IS_DGFX(dev_priv)) {
+ dc5_reg = DG1_DMC_DEBUG_DC5_COUNT;
+ } else {
+ dc5_reg = TGL_DMC_DEBUG_DC5_COUNT;
+ dc6_reg = TGL_DMC_DEBUG_DC6_COUNT;
+ }
+
/*
* NOTE: DMC_DEBUG3 is a general purpose reg.
* According to B.Specs:49196 DMC f/w reuses DC5/6 counter
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1d7d902bb640..dead4bcf717f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7538,6 +7538,7 @@ enum {
#define BXT_CSR_DC3_DC5_COUNT _MMIO(0x80038)
#define TGL_DMC_DEBUG_DC5_COUNT _MMIO(0x101084)
#define TGL_DMC_DEBUG_DC6_COUNT _MMIO(0x101088)
+#define DG1_DMC_DEBUG_DC5_COUNT _MMIO(0x134154)
#define DMC_DEBUG3 _MMIO(0x101090)
--
2.28.0
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