Starting from MTl we don't have a platform agnostic way to validate DC6 state
due to dc6 counter has been removed to validate DC state.
Adding dc6_entry_counter at display dirver to validate dc6 state.
Signed-off-by: Mohammed Thasleem <mohammed.thasleem@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display_core.h | 1 +
drivers/gpu/drm/i915/display/intel_display_power_well.c | 2 ++
drivers/gpu/drm/i915/display/intel_dmc.c | 1 +
3 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h
index 554870d2494b..cc244617011f 100644
--- a/drivers/gpu/drm/i915/display/intel_display_core.h
+++ b/drivers/gpu/drm/i915/display/intel_display_core.h
@@ -376,6 +376,7 @@ struct intel_display {
struct {
struct intel_dmc *dmc;
intel_wakeref_t wakeref;
+ u32 dc6_entry_counter;
} dmc;
struct {
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index f45a4f9ba23c..0eb178aa618d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -869,6 +869,8 @@ void skl_enable_dc6(struct intel_display *display)
intel_dmc_wl_enable(display, DC_STATE_EN_UPTO_DC6);
gen9_set_dc_state(display, DC_STATE_EN_UPTO_DC6);
+
+ display->dmc.dc6_entry_counter++;
}
void bxt_enable_dc9(struct intel_display *display)
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 221d3abda791..f51bd8e6011d 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -1293,6 +1293,7 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
if (i915_mmio_reg_valid(dc6_reg))
seq_printf(m, "DC5 -> DC6 count: %d\n",
intel_de_read(display, dc6_reg));
+ seq_printf(m, "DC6 entry count: %d\n", display->dmc.dc6_entry_counter);
seq_printf(m, "program base: 0x%08x\n",
intel_de_read(display, DMC_PROGRAM(dmc->dmc_info[DMC_FW_MAIN].start_mmioaddr, 0)));
--
2.43.0
