drm/radeon/kms: HDMI irq support
Implements irq support for HDMI audio output. Now the polling timer
is only enabled if irq support isn't available.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index c325cb1..2ec423c 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2527,6 +2527,7 @@
u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
u32 mode_int = 0;
u32 hpd1, hpd2, hpd3, hpd4 = 0, hpd5 = 0, hpd6 = 0;
+ u32 hdmi1, hdmi2;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
@@ -2540,7 +2541,9 @@
return 0;
}
+ hdmi1 = RREG32(R600_HDMI_BLOCK1 + R600_HDMI_CNTL) & ~R600_HDMI_INT_EN;
if (ASIC_IS_DCE3(rdev)) {
+ hdmi2 = RREG32(R600_HDMI_BLOCK3 + R600_HDMI_CNTL) & ~R600_HDMI_INT_EN;
hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
@@ -2550,6 +2553,7 @@
hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
}
} else {
+ hdmi2 = RREG32(R600_HDMI_BLOCK2 + R600_HDMI_CNTL) & ~R600_HDMI_INT_EN;
hpd1 = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd2 = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd3 = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & ~DC_HPDx_INT_EN;
@@ -2591,10 +2595,20 @@
DRM_DEBUG("r600_irq_set: hpd 6\n");
hpd6 |= DC_HPDx_INT_EN;
}
+ if (rdev->irq.hdmi[0]) {
+ DRM_DEBUG("r600_irq_set: hdmi 1\n");
+ hdmi1 |= R600_HDMI_INT_EN;
+ }
+ if (rdev->irq.hdmi[1]) {
+ DRM_DEBUG("r600_irq_set: hdmi 2\n");
+ hdmi2 |= R600_HDMI_INT_EN;
+ }
WREG32(CP_INT_CNTL, cp_int_cntl);
WREG32(DxMODE_INT_MASK, mode_int);
+ WREG32(R600_HDMI_BLOCK1 + R600_HDMI_CNTL, hdmi1);
if (ASIC_IS_DCE3(rdev)) {
+ WREG32(R600_HDMI_BLOCK3 + R600_HDMI_CNTL, hdmi2);
WREG32(DC_HPD1_INT_CONTROL, hpd1);
WREG32(DC_HPD2_INT_CONTROL, hpd2);
WREG32(DC_HPD3_INT_CONTROL, hpd3);
@@ -2604,6 +2618,7 @@
WREG32(DC_HPD6_INT_CONTROL, hpd6);
}
} else {
+ WREG32(R600_HDMI_BLOCK2 + R600_HDMI_CNTL, hdmi2);
WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, hpd3);
@@ -2687,6 +2702,18 @@
WREG32(DC_HPD6_INT_CONTROL, tmp);
}
}
+ if (RREG32(R600_HDMI_BLOCK1 + R600_HDMI_STATUS) & R600_HDMI_INT_PENDING) {
+ WREG32_P(R600_HDMI_BLOCK1 + R600_HDMI_CNTL, R600_HDMI_INT_ACK, ~R600_HDMI_INT_ACK);
+ }
+ if (ASIC_IS_DCE3(rdev)) {
+ if (RREG32(R600_HDMI_BLOCK3 + R600_HDMI_STATUS) & R600_HDMI_INT_PENDING) {
+ WREG32_P(R600_HDMI_BLOCK3 + R600_HDMI_CNTL, R600_HDMI_INT_ACK, ~R600_HDMI_INT_ACK);
+ }
+ } else {
+ if (RREG32(R600_HDMI_BLOCK2 + R600_HDMI_STATUS) & R600_HDMI_INT_PENDING) {
+ WREG32_P(R600_HDMI_BLOCK2 + R600_HDMI_CNTL, R600_HDMI_INT_ACK, ~R600_HDMI_INT_ACK);
+ }
+ }
}
void r600_irq_disable(struct radeon_device *rdev)
@@ -2740,6 +2767,8 @@
* 19 1 FP Hot plug detection B
* 19 2 DAC A auto-detection
* 19 3 DAC B auto-detection
+ * 21 4 HDMI block A
+ * 21 5 HDMI block B
* 176 - CP_INT RB
* 177 - CP_INT IB1
* 178 - CP_INT IB2
@@ -2879,6 +2908,10 @@
break;
}
break;
+ case 21: /* HDMI */
+ DRM_DEBUG("IH: HDMI: 0x%x\n", src_data);
+ r600_audio_schedule_polling(rdev);
+ break;
case 176: /* CP_INT in ring buffer */
case 177: /* CP_INT in IB1 */
case 178: /* CP_INT in IB2 */