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drm/i915/pm_demand: introduce HAS_PMDEMAND macro

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PM demand feature introduces a new way to set bw, power and
performance requirements to pcode from display version 14 onwards.
Use an identifiable name as a macro to distinguish the pm demand
specific changes in the code.

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-3-vinod.govindapillai@intel.com
This commit is contained in:
Vinod Govindapillai 2026-06-15 23:33:50 +03:00
parent 60f68a6ba2
commit fb8a24c079
5 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/display/intel_bw.c
View File

@ -184,7 +184,7 @@ static int icl_pcode_restrict_qgv_points(struct intel_display *display,
{
int ret;
if (DISPLAY_VER(display) >= 14)
if (HAS_PMDEMAND(display))
return 0;
/* bspec says to keep retrying for at least 1 ms */
@ -1238,7 +1238,7 @@ static int intel_bw_check_qgv_points(struct intel_display *display,
data_rate = DIV_ROUND_UP(data_rate, 1000);
if (DISPLAY_VER(display) >= 14)
if (HAS_PMDEMAND(display))
return mtl_find_qgv_points(display, data_rate, num_active_planes,
new_bw_state);
else

1
drivers/gpu/drm/i915/display/intel_display_device.h
View File

@ -194,6 +194,7 @@ struct intel_display_platforms {
#define HAS_OVERLAY(__display) (DISPLAY_INFO(__display)->has_overlay)
#define HAS_PIPEDMC(__display) (DISPLAY_VER(__display) >= 12)
#define HAS_PIXEL_NORMALIZER(__display) (DISPLAY_VER(__display) >= 35)
#define HAS_PMDEMAND(__display) (DISPLAY_VER(__display) >= 14)
#define HAS_PSR(__display) (DISPLAY_INFO(__display)->has_psr)
#define HAS_PSR_HW_TRACKING(__display) (DISPLAY_INFO(__display)->has_psr_hw_tracking)
#define HAS_PSR2_SEL_FETCH(__display) (DISPLAY_VER(__display) >= 12)

2
drivers/gpu/drm/i915/display/intel_display_irq.c
View File

@ -1262,7 +1262,7 @@ gen8_de_misc_irq_handler(struct intel_display *display, u32 iir)
}
}
if (DISPLAY_VER(display) >= 14) {
if (HAS_PMDEMAND(display)) {
if (iir & (XELPDP_PMDEMAND_RSP |
XELPDP_PMDEMAND_RSPTOUT_ERR)) {
if (iir & XELPDP_PMDEMAND_RSPTOUT_ERR)

4
drivers/gpu/drm/i915/display/intel_display_power.c
View File

@ -1290,7 +1290,7 @@ static void gen9_dbuf_enable(struct intel_display *display)
slices_mask = BIT(DBUF_S1) | display->dbuf.enabled_slices;
if (DISPLAY_VER(display) >= 14)
if (HAS_PMDEMAND(display))
intel_pmdemand_program_dbuf(display, slices_mask);
/*
@ -1304,7 +1304,7 @@ static void gen9_dbuf_disable(struct intel_display *display)
{
gen9_dbuf_slices_update(display, 0);
if (DISPLAY_VER(display) >= 14)
if (HAS_PMDEMAND(display))
intel_pmdemand_program_dbuf(display, 0);
}

12
drivers/gpu/drm/i915/display/intel_pmdemand.c
View File

@ -152,7 +152,7 @@ intel_pmdemand_update_phys_mask(struct intel_display *display,
{
enum phy phy;
if (DISPLAY_VER(display) < 14)
if (!HAS_PMDEMAND(display))
return;
if (!encoder)
@ -174,7 +174,7 @@ intel_pmdemand_update_port_clock(struct intel_display *display,
struct intel_pmdemand_state *pmdemand_state,
enum pipe pipe, int port_clock)
{
if (DISPLAY_VER(display) < 14)
if (!HAS_PMDEMAND(display))
return;
pmdemand_state->ddi_clocks[pipe] = port_clock;
@ -324,7 +324,7 @@ int intel_pmdemand_atomic_check(struct intel_atomic_state *state)
const struct intel_dbuf_state *new_dbuf_state;
struct intel_pmdemand_state *new_pmdemand_state;
if (DISPLAY_VER(display) < 14)
if (!HAS_PMDEMAND(display))
return 0;
if (!intel_pmdemand_needs_update(state))
@ -404,7 +404,7 @@ intel_pmdemand_init_pmdemand_params(struct intel_display *display,
{
u32 reg1, reg2;
if (DISPLAY_VER(display) < 14)
if (!HAS_PMDEMAND(display))
return;
mutex_lock(&display->pmdemand.lock);
@ -637,7 +637,7 @@ void intel_pmdemand_pre_plane_update(struct intel_atomic_state *state)
const struct intel_pmdemand_state *old_pmdemand_state =
intel_atomic_get_old_pmdemand_state(state);
if (DISPLAY_VER(display) < 14)
if (!HAS_PMDEMAND(display))
return;
if (!new_pmdemand_state ||
@ -660,7 +660,7 @@ void intel_pmdemand_post_plane_update(struct intel_atomic_state *state)
const struct intel_pmdemand_state *old_pmdemand_state =
intel_atomic_get_old_pmdemand_state(state);
if (DISPLAY_VER(display) < 14)
if (!HAS_PMDEMAND(display))
return;
if (!new_pmdemand_state ||