diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_irq.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 56 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 4 |
4 files changed, 83 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.c b/drivers/gpu/drm/i915/display/intel_display_irq.c index afcd2af82942..d85c33eabc47 100644 --- a/drivers/gpu/drm/i915/display/intel_display_irq.c +++ b/drivers/gpu/drm/i915/display/intel_display_irq.c @@ -14,6 +14,7 @@ #include "intel_display_trace.h" #include "intel_display_types.h" #include "intel_dp_aux.h" +#include "intel_dsb.h" #include "intel_fdi_regs.h" #include "intel_fifo_underrun.h" #include "intel_gmbus.h" @@ -1164,6 +1165,17 @@ void gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl) if (iir & gen8_de_pipe_flip_done_mask(dev_priv)) flip_done_handler(dev_priv, pipe); + if (HAS_DSB(dev_priv)) { + if (iir & GEN12_DSB_INT(INTEL_DSB_0)) + intel_dsb_irq_handler(&dev_priv->display, pipe, INTEL_DSB_0); + + if (iir & GEN12_DSB_INT(INTEL_DSB_1)) + intel_dsb_irq_handler(&dev_priv->display, pipe, INTEL_DSB_1); + + if (iir & GEN12_DSB_INT(INTEL_DSB_2)) + intel_dsb_irq_handler(&dev_priv->display, pipe, INTEL_DSB_2); + } + if (iir & GEN8_PIPE_CDCLK_CRC_DONE) hsw_pipe_crc_irq_handler(dev_priv, pipe); @@ -1736,6 +1748,11 @@ void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) de_port_masked |= DSI0_TE | DSI1_TE; } + if (HAS_DSB(dev_priv)) + de_pipe_masked |= GEN12_DSB_INT(INTEL_DSB_0) | + GEN12_DSB_INT(INTEL_DSB_1) | + GEN12_DSB_INT(INTEL_DSB_2); + de_pipe_enables = de_pipe_masked | GEN8_PIPE_VBLANK | gen8_de_pipe_underrun_mask(dev_priv) | diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 2ab3765f6c06..3453989728aa 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -339,6 +339,40 @@ static u32 dsb_chicken(struct intel_crtc *crtc) return DSB_SKIP_WAITS_EN; } +static u32 dsb_error_int_status(struct intel_display *display) +{ + u32 errors; + + errors = DSB_GTT_FAULT_INT_STATUS | + DSB_RSPTIMEOUT_INT_STATUS | + DSB_POLL_ERR_INT_STATUS; + + /* + * All the non-existing status bits operate as + * normal r/w bits, so any attempt to clear them + * will just end up setting them. Never do that so + * we won't mistake them for actual error interrupts. + */ + if (DISPLAY_VER(display) >= 14) + errors |= DSB_ATS_FAULT_INT_STATUS; + + return errors; +} + +static u32 dsb_error_int_en(struct intel_display *display) +{ + u32 errors; + + errors = DSB_GTT_FAULT_INT_EN | + DSB_RSPTIMEOUT_INT_EN | + DSB_POLL_ERR_INT_EN; + + if (DISPLAY_VER(display) >= 14) + errors |= DSB_ATS_FAULT_INT_EN; + + return errors; +} + static void _intel_dsb_commit(struct intel_dsb *dsb, u32 ctrl, int dewake_scanline) { @@ -363,6 +397,10 @@ static void _intel_dsb_commit(struct intel_dsb *dsb, u32 ctrl, intel_de_write_fw(display, DSB_CHICKEN(pipe, dsb->id), dsb_chicken(crtc)); + intel_de_write_fw(display, DSB_INTERRUPT(pipe, dsb->id), + dsb_error_int_status(display) | DSB_PROG_INT_STATUS | + dsb_error_int_en(display)); + intel_de_write_fw(display, DSB_HEAD(pipe, dsb->id), intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf)); @@ -430,6 +468,9 @@ void intel_dsb_wait(struct intel_dsb *dsb) dsb->free_pos = 0; dsb->ins_start_offset = 0; intel_de_write_fw(display, DSB_CTRL(pipe, dsb->id), 0); + + intel_de_write_fw(display, DSB_INTERRUPT(pipe, dsb->id), + dsb_error_int_status(display) | DSB_PROG_INT_STATUS); } /** @@ -513,3 +554,18 @@ void intel_dsb_cleanup(struct intel_dsb *dsb) intel_dsb_buffer_cleanup(&dsb->dsb_buf); kfree(dsb); } + +void intel_dsb_irq_handler(struct intel_display *display, + enum pipe pipe, enum intel_dsb_id dsb_id) +{ + struct intel_crtc *crtc = intel_crtc_for_pipe(to_i915(display->drm), pipe); + u32 tmp, errors; + + tmp = intel_de_read_fw(display, DSB_INTERRUPT(pipe, dsb_id)); + intel_de_write_fw(display, DSB_INTERRUPT(pipe, dsb_id), tmp); + + errors = tmp & dsb_error_int_status(display); + if (errors) + drm_err(display->drm, "[CRTC:%d:%s] DSB %d error interrupt: 0x%x\n", + crtc->base.base.id, crtc->base.name, dsb_id, errors); +} diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h index bb42749f2ea4..84fc2f8434d1 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.h +++ b/drivers/gpu/drm/i915/display/intel_dsb.h @@ -13,8 +13,11 @@ struct intel_atomic_state; struct intel_crtc; struct intel_crtc_state; +struct intel_display; struct intel_dsb; +enum pipe; + enum intel_dsb_id { INTEL_DSB_0, INTEL_DSB_1, @@ -41,4 +44,7 @@ void intel_dsb_commit(struct intel_dsb *dsb, bool wait_for_vblank); void intel_dsb_wait(struct intel_dsb *dsb); +void intel_dsb_irq_handler(struct intel_display *display, + enum pipe pipe, enum intel_dsb_id dsb_id); + #endif diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 569b461022c5..41f4350a7c6c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2516,6 +2516,10 @@ #define GEN11_PIPE_PLANE7_FLIP_DONE REG_BIT(18) /* icl/tgl */ #define GEN11_PIPE_PLANE6_FLIP_DONE REG_BIT(17) /* icl/tgl */ #define GEN11_PIPE_PLANE5_FLIP_DONE REG_BIT(16) /* icl+ */ +#define GEN12_DSB_2_INT REG_BIT(15) /* tgl+ */ +#define GEN12_DSB_1_INT REG_BIT(14) /* tgl+ */ +#define GEN12_DSB_0_INT REG_BIT(13) /* tgl+ */ +#define GEN12_DSB_INT(dsb_id) REG_BIT(13 + (dsb_id)) #define GEN9_PIPE_CURSOR_FAULT REG_BIT(11) /* skl+ */ #define GEN9_PIPE_PLANE4_FAULT REG_BIT(10) /* skl+ */ #define GEN8_PIPE_CURSOR_FAULT REG_BIT(10) /* bdw */ |