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Subject[PATCH v2 2/3] drm/radeon: Cleanup HDMI audio interrupt handling for evergreen
Date
Same as the previous patch, but now for handling HDMI audio interrupts.

Changes since v1:
- Preserve the order we write back all registers

Signed-off-by: Lyude <lyude@redhat.com>
---
drivers/gpu/drm/radeon/evergreen.c | 153 +++++++------------------------------
drivers/gpu/drm/radeon/radeon.h | 7 +-
2 files changed, 27 insertions(+), 133 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 44ac6d3..507a773 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -4495,7 +4495,6 @@ int evergreen_irq_set(struct radeon_device *rdev)
u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
u32 cp_int_cntl1 = 0, cp_int_cntl2 = 0;
u32 grbm_int_cntl = 0;
- u32 afmt1 = 0, afmt2 = 0, afmt3 = 0, afmt4 = 0, afmt5 = 0, afmt6 = 0;
u32 dma_cntl, dma_cntl1 = 0;
u32 thermal_int = 0;

@@ -4518,13 +4517,6 @@ int evergreen_irq_set(struct radeon_device *rdev)
thermal_int = RREG32(CG_THERMAL_INT) &
~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);

- afmt1 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
- afmt2 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
- afmt3 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
- afmt4 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
- afmt5 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
- afmt6 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
-
dma_cntl = RREG32(DMA_CNTL) & ~TRAP_ENABLE;

if (rdev->family >= CHIP_CAYMAN) {
@@ -4567,31 +4559,6 @@ int evergreen_irq_set(struct radeon_device *rdev)
thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
}

- if (rdev->irq.afmt[0]) {
- DRM_DEBUG("evergreen_irq_set: hdmi 0\n");
- afmt1 |= AFMT_AZ_FORMAT_WTRIG_MASK;
- }
- if (rdev->irq.afmt[1]) {
- DRM_DEBUG("evergreen_irq_set: hdmi 1\n");
- afmt2 |= AFMT_AZ_FORMAT_WTRIG_MASK;
- }
- if (rdev->irq.afmt[2]) {
- DRM_DEBUG("evergreen_irq_set: hdmi 2\n");
- afmt3 |= AFMT_AZ_FORMAT_WTRIG_MASK;
- }
- if (rdev->irq.afmt[3]) {
- DRM_DEBUG("evergreen_irq_set: hdmi 3\n");
- afmt4 |= AFMT_AZ_FORMAT_WTRIG_MASK;
- }
- if (rdev->irq.afmt[4]) {
- DRM_DEBUG("evergreen_irq_set: hdmi 4\n");
- afmt5 |= AFMT_AZ_FORMAT_WTRIG_MASK;
- }
- if (rdev->irq.afmt[5]) {
- DRM_DEBUG("evergreen_irq_set: hdmi 5\n");
- afmt6 |= AFMT_AZ_FORMAT_WTRIG_MASK;
- }
-
if (rdev->family >= CHIP_CAYMAN) {
cayman_cp_int_cntl_setup(rdev, 0, cp_int_cntl);
cayman_cp_int_cntl_setup(rdev, 1, cp_int_cntl1);
@@ -4643,12 +4610,12 @@ int evergreen_irq_set(struct radeon_device *rdev)
else
WREG32(CG_THERMAL_INT, thermal_int);

- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, afmt1);
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, afmt2);
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, afmt3);
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, afmt4);
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, afmt5);
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, afmt6);
+ for (i = 0; i < 6; i++) {
+ radeon_irq_kms_set_irq_n_enabled(
+ rdev, AFMT_AUDIO_PACKET_CONTROL + crtc_offsets[i],
+ AFMT_AZ_FORMAT_WTRIG_MASK,
+ rdev->irq.afmt[i], "HDMI", i);
+ }

/* posting read */
RREG32(SRBM_STATUS);
@@ -4661,10 +4628,12 @@ static void evergreen_irq_ack(struct radeon_device *rdev)
{
int i;
u32 *disp_int = rdev->irq.stat_regs.evergreen.disp_int;
- u32 tmp;
+ u32 *afmt_status = rdev->irq.stat_regs.evergreen.afmt_status;

- for (i = 0; i < 6; i++)
+ for (i = 0; i < 6; i++) {
disp_int[i] = RREG32(evergreen_disp_int_status[i]);
+ afmt_status[i] = RREG32(AFMT_STATUS + crtc_offsets[i]);
+ }

rdev->irq.stat_regs.evergreen.d1grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET);
rdev->irq.stat_regs.evergreen.d2grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET);
@@ -4677,12 +4646,6 @@ static void evergreen_irq_ack(struct radeon_device *rdev)
rdev->irq.stat_regs.evergreen.d6grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET);
}

- rdev->irq.stat_regs.evergreen.afmt_status1 = RREG32(AFMT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET);
- rdev->irq.stat_regs.evergreen.afmt_status2 = RREG32(AFMT_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET);
- rdev->irq.stat_regs.evergreen.afmt_status3 = RREG32(AFMT_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET);
- rdev->irq.stat_regs.evergreen.afmt_status4 = RREG32(AFMT_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET);
- rdev->irq.stat_regs.evergreen.afmt_status5 = RREG32(AFMT_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET);
- rdev->irq.stat_regs.evergreen.afmt_status6 = RREG32(AFMT_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET);

if (rdev->irq.stat_regs.evergreen.d1grph_int & GRPH_PFLIP_INT_OCCURRED)
WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
@@ -4737,35 +4700,10 @@ static void evergreen_irq_ack(struct radeon_device *rdev)
WREG32_OR(DC_HPDx_INT_CONTROL(i), DC_HPDx_RX_INT_ACK);
}

- if (rdev->irq.stat_regs.evergreen.afmt_status1 & AFMT_AZ_FORMAT_WTRIG) {
- tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET);
- tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, tmp);
- }
- if (rdev->irq.stat_regs.evergreen.afmt_status2 & AFMT_AZ_FORMAT_WTRIG) {
- tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
- tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, tmp);
- }
- if (rdev->irq.stat_regs.evergreen.afmt_status3 & AFMT_AZ_FORMAT_WTRIG) {
- tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET);
- tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, tmp);
- }
- if (rdev->irq.stat_regs.evergreen.afmt_status4 & AFMT_AZ_FORMAT_WTRIG) {
- tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
- tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, tmp);
- }
- if (rdev->irq.stat_regs.evergreen.afmt_status5 & AFMT_AZ_FORMAT_WTRIG) {
- tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET);
- tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, tmp);
- }
- if (rdev->irq.stat_regs.evergreen.afmt_status6 & AFMT_AZ_FORMAT_WTRIG) {
- tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
- tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
- WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, tmp);
+ for (i = 0; i < 6; i++) {
+ if (afmt_status[i] & AFMT_AZ_FORMAT_WTRIG)
+ WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + crtc_offsets[i],
+ AFMT_AZ_FORMAT_WTRIG_ACK);
}
}

@@ -4812,7 +4750,8 @@ static u32 evergreen_get_ih_wptr(struct radeon_device *rdev)
int evergreen_irq_process(struct radeon_device *rdev)
{
u32 *disp_int = rdev->irq.stat_regs.evergreen.disp_int;
- u32 crtc_idx, hpd_idx;
+ u32 *afmt_status = rdev->irq.stat_regs.evergreen.afmt_status;
+ u32 crtc_idx, hpd_idx, afmt_idx;
u32 mask;
u32 wptr;
u32 rptr;
@@ -4928,59 +4867,19 @@ int evergreen_irq_process(struct radeon_device *rdev)

break;
case 44: /* hdmi */
- switch (src_data) {
- case 0:
- if (!(rdev->irq.stat_regs.evergreen.afmt_status1 & AFMT_AZ_FORMAT_WTRIG))
- DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
-
- rdev->irq.stat_regs.evergreen.afmt_status1 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI0\n");
- break;
- case 1:
- if (!(rdev->irq.stat_regs.evergreen.afmt_status2 & AFMT_AZ_FORMAT_WTRIG))
- DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
-
- rdev->irq.stat_regs.evergreen.afmt_status2 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI1\n");
- break;
- case 2:
- if (!(rdev->irq.stat_regs.evergreen.afmt_status3 & AFMT_AZ_FORMAT_WTRIG))
- DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
-
- rdev->irq.stat_regs.evergreen.afmt_status3 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI2\n");
- break;
- case 3:
- if (!(rdev->irq.stat_regs.evergreen.afmt_status4 & AFMT_AZ_FORMAT_WTRIG))
- DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
-
- rdev->irq.stat_regs.evergreen.afmt_status4 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI3\n");
- break;
- case 4:
- if (!(rdev->irq.stat_regs.evergreen.afmt_status5 & AFMT_AZ_FORMAT_WTRIG))
- DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
-
- rdev->irq.stat_regs.evergreen.afmt_status5 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI4\n");
- break;
- case 5:
- if (!(rdev->irq.stat_regs.evergreen.afmt_status6 & AFMT_AZ_FORMAT_WTRIG))
- DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+ afmt_idx = src_data;
+ if (!(afmt_status[afmt_idx] & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");

- rdev->irq.stat_regs.evergreen.afmt_status6 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI5\n");
- break;
- default:
- DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
+ if (afmt_idx > 5) {
+ DRM_ERROR("Unhandled interrupt: %d %d\n",
+ src_id, src_data);
break;
}
+ afmt_status[afmt_idx] &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI%d\n", afmt_idx + 1);
+ break;
case 96:
DRM_ERROR("SRBM_READ_ERROR: 0x%x\n", RREG32(SRBM_READ_ERROR));
WREG32(SRBM_INT_ACK, 0x1);
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b6086ee..e961a8a 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -774,12 +774,7 @@ struct evergreen_irq_stat_regs {
u32 d4grph_int;
u32 d5grph_int;
u32 d6grph_int;
- u32 afmt_status1;
- u32 afmt_status2;
- u32 afmt_status3;
- u32 afmt_status4;
- u32 afmt_status5;
- u32 afmt_status6;
+ u32 afmt_status[6];
};

struct cik_irq_stat_regs {
--
2.9.4
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