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drm/i915/display: convert W/As in intel_flipq.c to new framework

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Convert the low-hanging fruits of workaround checks to the workaround
framework.  Instead of having display structure checks for the
workarounds all over, concentrate the checks in intel_display_wa.c.

Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260305100100.332956-12-luciano.coelho@intel.com
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Luca Coelho 2026-03-05 11:59:14 +02:00
parent 305a60de9b
commit 700f1c1b3b
3 changed files with 8 additions and 10 deletions
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4
drivers/gpu/drm/i915/display/intel_display_wa.c
View File

@ -117,6 +117,10 @@ bool __intel_display_wa(struct intel_display *display, enum intel_display_wa wa,
return intel_display_needs_wa_16023588340(display);
case INTEL_DISPLAY_WA_16025573575:
return intel_display_needs_wa_16025573575(display);
case INTEL_DISPLAY_WA_18034343758:
return DISPLAY_VER(display) == 20 ||
(display->platform.pantherlake &&
IS_DISPLAY_STEP(display, STEP_A0, STEP_B0));
case INTEL_DISPLAY_WA_22010178259:
return DISPLAY_VER(display) == 12;
case INTEL_DISPLAY_WA_22011320316:

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

@ -46,6 +46,7 @@ enum intel_display_wa {
INTEL_DISPLAY_WA_16011863758,
INTEL_DISPLAY_WA_16023588340,
INTEL_DISPLAY_WA_16025573575,
INTEL_DISPLAY_WA_18034343758,
INTEL_DISPLAY_WA_22010178259,
INTEL_DISPLAY_WA_22011320316,
INTEL_DISPLAY_WA_22012358565,

13
drivers/gpu/drm/i915/display/intel_flipq.c
View File

@ -12,6 +12,7 @@
#include "intel_display_core.h"
#include "intel_display_types.h"
#include "intel_display_utils.h"
#include "intel_display_wa.h"
#include "intel_dmc.h"
#include "intel_dmc_regs.h"
#include "intel_dsb.h"
@ -447,19 +448,11 @@ void intel_flipq_add(struct intel_crtc *crtc,
intel_flipq_sw_dmc_wake(crtc);
}
/* Wa_18034343758 */
static bool need_dmc_halt_wa(struct intel_display *display)
{
return DISPLAY_VER(display) == 20 ||
(display->platform.pantherlake &&
IS_DISPLAY_STEP(display, STEP_A0, STEP_B0));
}
void intel_flipq_wait_dmc_halt(struct intel_dsb *dsb, struct intel_crtc *crtc)
{
struct intel_display *display = to_intel_display(crtc);
if (need_dmc_halt_wa(display))
if (intel_display_wa(display, INTEL_DISPLAY_WA_18034343758))
intel_dsb_wait_usec(dsb, 2);
}
@ -467,6 +460,6 @@ void intel_flipq_unhalt_dmc(struct intel_dsb *dsb, struct intel_crtc *crtc)
{
struct intel_display *display = to_intel_display(crtc);
if (need_dmc_halt_wa(display))
if (intel_display_wa(display, INTEL_DISPLAY_WA_18034343758))
intel_dsb_reg_write(dsb, PIPEDMC_CTL(crtc->pipe), 0);
}