diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dmc.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dmc.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index ff2b97a752b1..8360385ed140 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -516,6 +516,23 @@ void intel_dmc_disable_pipe(struct intel_display *display, enum pipe pipe) intel_de_rmw(display, PIPEDMC_CONTROL(pipe), PIPEDMC_ENABLE, 0); } +/** + * intel_dmc_block_pkgc() - block PKG C-state + * @display: display instance + * @pipe: pipe which register use to block + * @block: block/unblock + * + * This interface is target for Wa_16025596647 usage. I.e. to set/clear + * PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS bit in PIPEDMC_BLOCK_PKGC_SW register. + */ +void intel_dmc_block_pkgc(struct intel_display *display, enum pipe pipe, + bool block) +{ + intel_de_rmw(display, PIPEDMC_BLOCK_PKGC_SW(pipe), + PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS, block ? + PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS : 0); +} + static bool is_dmc_evt_ctl_reg(struct intel_display *display, enum intel_dmc_id dmc_id, i915_reg_t reg) { diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h index c78426eb4cd5..236312fb791c 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.h +++ b/drivers/gpu/drm/i915/display/intel_dmc.h @@ -18,6 +18,8 @@ void intel_dmc_load_program(struct intel_display *display); void intel_dmc_disable_program(struct intel_display *display); void intel_dmc_enable_pipe(struct intel_display *display, enum pipe pipe); void intel_dmc_disable_pipe(struct intel_display *display, enum pipe pipe); +void intel_dmc_block_pkgc(struct intel_display *display, enum pipe pipe, + bool block); void intel_dmc_fini(struct intel_display *display); void intel_dmc_suspend(struct intel_display *display); void intel_dmc_resume(struct intel_display *display); |