Expose DC3CO count and residency for xe3lp platforms via debugfs. Changes in v4: - Keep dc5_reg register initialization to avoid any invalid access (sashiko)
Changes in v5: - Change XE3P_DMC_DC3CO_COUNT address to lower case (Manna Animesh). Signed-off-by: Dibin Moolakadan Subrahmanian <[email protected]> --- drivers/gpu/drm/i915/display/intel_dmc.c | 9 ++++++++- drivers/gpu/drm/i915/display/intel_dmc_regs.h | 2 ++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index a133785c815b..5ffe2b1c3c51 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -1650,7 +1650,14 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused) DMC_VERSION_MINOR(dmc->version)); if (DISPLAY_VER(display) >= 12) { - if (display->platform.dgfx || DISPLAY_VER(display) >= 14) { + if (DISPLAY_VER(display) >= 35) { + dc5_reg = DG1_DMC_DEBUG_DC5_COUNT; + seq_printf(m, "DC3CO count: %d\n", + intel_de_read(display, XE3P_DMC_DC3CO_COUNT)); + + seq_printf(m, "DC3CO residency: %d\n", + intel_de_read(display, DC_STATE_DC3CO_RESIDENCY)); + } else if (display->platform.dgfx || DISPLAY_VER(display) >= 14) { dc5_reg = DG1_DMC_DEBUG_DC5_COUNT; } else { dc5_reg = TGL_DMC_DEBUG_DC5_COUNT; diff --git a/drivers/gpu/drm/i915/display/intel_dmc_regs.h b/drivers/gpu/drm/i915/display/intel_dmc_regs.h index 38e342b45af0..6b7978fb8986 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc_regs.h +++ b/drivers/gpu/drm/i915/display/intel_dmc_regs.h @@ -531,6 +531,8 @@ enum pipedmc_event_id { #define TGL_DMC_DEBUG3 _MMIO(0x101090) #define DG1_DMC_DEBUG3 _MMIO(0x13415c) +#define XE3P_DMC_DC3CO_COUNT _MMIO(0x8f05c) + #define DMC_WAKELOCK_CFG _MMIO(0x8F1B0) #define DMC_WAKELOCK_CFG_ENABLE REG_BIT(31) #define DMC_WAKELOCK1_CTL _MMIO(0x8F140) -- 2.43.0
