drm/radeon/kms/evergreen: implement irq support
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 57fe569..5c34349 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1205,12 +1205,532 @@
return evergreen_gpu_soft_reset(rdev);
}
+/* Interrupts */
+
+u32 evergreen_get_vblank_counter(struct radeon_device *rdev, int crtc)
+{
+ switch (crtc) {
+ case 0:
+ return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC0_REGISTER_OFFSET);
+ case 1:
+ return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC1_REGISTER_OFFSET);
+ case 2:
+ return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC2_REGISTER_OFFSET);
+ case 3:
+ return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC3_REGISTER_OFFSET);
+ case 4:
+ return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC4_REGISTER_OFFSET);
+ case 5:
+ return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC5_REGISTER_OFFSET);
+ default:
+ return 0;
+ }
+}
+
+void evergreen_disable_interrupt_state(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ WREG32(CP_INT_CNTL, 0);
+ WREG32(GRBM_INT_CNTL, 0);
+ WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
+ WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
+ WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
+ WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
+ WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
+ WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
+
+ WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
+ WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
+ WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
+ WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
+ WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
+ WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
+
+ WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
+ WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
+
+ tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+ WREG32(DC_HPD1_INT_CONTROL, tmp);
+ tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+ WREG32(DC_HPD2_INT_CONTROL, tmp);
+ tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+ WREG32(DC_HPD3_INT_CONTROL, tmp);
+ tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+ WREG32(DC_HPD4_INT_CONTROL, tmp);
+ tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+ WREG32(DC_HPD5_INT_CONTROL, tmp);
+ tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+ WREG32(DC_HPD6_INT_CONTROL, tmp);
+
+}
+
+int evergreen_irq_set(struct radeon_device *rdev)
+{
+ u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
+ u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0;
+ u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
+
+ if (!rdev->irq.installed) {
+ WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
+ return -EINVAL;
+ }
+ /* don't enable anything if the ih is disabled */
+ if (!rdev->ih.enabled) {
+ r600_disable_interrupts(rdev);
+ /* force the active interrupt state to all disabled */
+ evergreen_disable_interrupt_state(rdev);
+ return 0;
+ }
+
+ 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;
+ hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
+ hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
+ hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
+
+ if (rdev->irq.sw_int) {
+ DRM_DEBUG("evergreen_irq_set: sw int\n");
+ cp_int_cntl |= RB_INT_ENABLE;
+ }
+ if (rdev->irq.crtc_vblank_int[0]) {
+ DRM_DEBUG("evergreen_irq_set: vblank 0\n");
+ crtc1 |= VBLANK_INT_MASK;
+ }
+ if (rdev->irq.crtc_vblank_int[1]) {
+ DRM_DEBUG("evergreen_irq_set: vblank 1\n");
+ crtc2 |= VBLANK_INT_MASK;
+ }
+ if (rdev->irq.crtc_vblank_int[2]) {
+ DRM_DEBUG("evergreen_irq_set: vblank 2\n");
+ crtc3 |= VBLANK_INT_MASK;
+ }
+ if (rdev->irq.crtc_vblank_int[3]) {
+ DRM_DEBUG("evergreen_irq_set: vblank 3\n");
+ crtc4 |= VBLANK_INT_MASK;
+ }
+ if (rdev->irq.crtc_vblank_int[4]) {
+ DRM_DEBUG("evergreen_irq_set: vblank 4\n");
+ crtc5 |= VBLANK_INT_MASK;
+ }
+ if (rdev->irq.crtc_vblank_int[5]) {
+ DRM_DEBUG("evergreen_irq_set: vblank 5\n");
+ crtc6 |= VBLANK_INT_MASK;
+ }
+ if (rdev->irq.hpd[0]) {
+ DRM_DEBUG("evergreen_irq_set: hpd 1\n");
+ hpd1 |= DC_HPDx_INT_EN;
+ }
+ if (rdev->irq.hpd[1]) {
+ DRM_DEBUG("evergreen_irq_set: hpd 2\n");
+ hpd2 |= DC_HPDx_INT_EN;
+ }
+ if (rdev->irq.hpd[2]) {
+ DRM_DEBUG("evergreen_irq_set: hpd 3\n");
+ hpd3 |= DC_HPDx_INT_EN;
+ }
+ if (rdev->irq.hpd[3]) {
+ DRM_DEBUG("evergreen_irq_set: hpd 4\n");
+ hpd4 |= DC_HPDx_INT_EN;
+ }
+ if (rdev->irq.hpd[4]) {
+ DRM_DEBUG("evergreen_irq_set: hpd 5\n");
+ hpd5 |= DC_HPDx_INT_EN;
+ }
+ if (rdev->irq.hpd[5]) {
+ DRM_DEBUG("evergreen_irq_set: hpd 6\n");
+ hpd6 |= DC_HPDx_INT_EN;
+ }
+
+ WREG32(CP_INT_CNTL, cp_int_cntl);
+
+ WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
+ WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, crtc2);
+ WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, crtc3);
+ WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, crtc4);
+ WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, crtc5);
+ WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, crtc6);
+
+ WREG32(DC_HPD1_INT_CONTROL, hpd1);
+ WREG32(DC_HPD2_INT_CONTROL, hpd2);
+ WREG32(DC_HPD3_INT_CONTROL, hpd3);
+ WREG32(DC_HPD4_INT_CONTROL, hpd4);
+ WREG32(DC_HPD5_INT_CONTROL, hpd5);
+ WREG32(DC_HPD6_INT_CONTROL, hpd6);
+
+ return 0;
+}
+
+static inline void evergreen_irq_ack(struct radeon_device *rdev,
+ u32 *disp_int,
+ u32 *disp_int_cont,
+ u32 *disp_int_cont2,
+ u32 *disp_int_cont3,
+ u32 *disp_int_cont4,
+ u32 *disp_int_cont5)
+{
+ u32 tmp;
+
+ *disp_int = RREG32(DISP_INTERRUPT_STATUS);
+ *disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
+ *disp_int_cont2 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE2);
+ *disp_int_cont3 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE3);
+ *disp_int_cont4 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE4);
+ *disp_int_cont5 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE5);
+
+ if (*disp_int & LB_D1_VBLANK_INTERRUPT)
+ WREG32(VBLANK_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VBLANK_ACK);
+ if (*disp_int & LB_D1_VLINE_INTERRUPT)
+ WREG32(VLINE_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VLINE_ACK);
+
+ if (*disp_int_cont & LB_D2_VBLANK_INTERRUPT)
+ WREG32(VBLANK_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VBLANK_ACK);
+ if (*disp_int_cont & LB_D2_VLINE_INTERRUPT)
+ WREG32(VLINE_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VLINE_ACK);
+
+ if (*disp_int_cont2 & LB_D3_VBLANK_INTERRUPT)
+ WREG32(VBLANK_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VBLANK_ACK);
+ if (*disp_int_cont2 & LB_D3_VLINE_INTERRUPT)
+ WREG32(VLINE_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VLINE_ACK);
+
+ if (*disp_int_cont3 & LB_D4_VBLANK_INTERRUPT)
+ WREG32(VBLANK_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VBLANK_ACK);
+ if (*disp_int_cont3 & LB_D4_VLINE_INTERRUPT)
+ WREG32(VLINE_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VLINE_ACK);
+
+ if (*disp_int_cont4 & LB_D5_VBLANK_INTERRUPT)
+ WREG32(VBLANK_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VBLANK_ACK);
+ if (*disp_int_cont4 & LB_D5_VLINE_INTERRUPT)
+ WREG32(VLINE_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VLINE_ACK);
+
+ if (*disp_int_cont5 & LB_D6_VBLANK_INTERRUPT)
+ WREG32(VBLANK_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VBLANK_ACK);
+ if (*disp_int_cont5 & LB_D6_VLINE_INTERRUPT)
+ WREG32(VLINE_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VLINE_ACK);
+
+ if (*disp_int & DC_HPD1_INTERRUPT) {
+ tmp = RREG32(DC_HPD1_INT_CONTROL);
+ tmp |= DC_HPDx_INT_ACK;
+ WREG32(DC_HPD1_INT_CONTROL, tmp);
+ }
+ if (*disp_int_cont & DC_HPD2_INTERRUPT) {
+ tmp = RREG32(DC_HPD2_INT_CONTROL);
+ tmp |= DC_HPDx_INT_ACK;
+ WREG32(DC_HPD2_INT_CONTROL, tmp);
+ }
+ if (*disp_int_cont2 & DC_HPD3_INTERRUPT) {
+ tmp = RREG32(DC_HPD3_INT_CONTROL);
+ tmp |= DC_HPDx_INT_ACK;
+ WREG32(DC_HPD3_INT_CONTROL, tmp);
+ }
+ if (*disp_int_cont3 & DC_HPD4_INTERRUPT) {
+ tmp = RREG32(DC_HPD4_INT_CONTROL);
+ tmp |= DC_HPDx_INT_ACK;
+ WREG32(DC_HPD4_INT_CONTROL, tmp);
+ }
+ if (*disp_int_cont4 & DC_HPD5_INTERRUPT) {
+ tmp = RREG32(DC_HPD5_INT_CONTROL);
+ tmp |= DC_HPDx_INT_ACK;
+ WREG32(DC_HPD5_INT_CONTROL, tmp);
+ }
+ if (*disp_int_cont5 & DC_HPD6_INTERRUPT) {
+ tmp = RREG32(DC_HPD5_INT_CONTROL);
+ tmp |= DC_HPDx_INT_ACK;
+ WREG32(DC_HPD6_INT_CONTROL, tmp);
+ }
+}
+
+void evergreen_irq_disable(struct radeon_device *rdev)
+{
+ u32 disp_int, disp_int_cont, disp_int_cont2;
+ u32 disp_int_cont3, disp_int_cont4, disp_int_cont5;
+
+ r600_disable_interrupts(rdev);
+ /* Wait and acknowledge irq */
+ mdelay(1);
+ evergreen_irq_ack(rdev, &disp_int, &disp_int_cont, &disp_int_cont2,
+ &disp_int_cont3, &disp_int_cont4, &disp_int_cont5);
+ evergreen_disable_interrupt_state(rdev);
+}
+
+static void evergreen_irq_suspend(struct radeon_device *rdev)
+{
+ evergreen_irq_disable(rdev);
+ r600_rlc_stop(rdev);
+}
+
+static inline u32 evergreen_get_ih_wptr(struct radeon_device *rdev)
+{
+ u32 wptr, tmp;
+
+ /* XXX use writeback */
+ wptr = RREG32(IH_RB_WPTR);
+
+ if (wptr & RB_OVERFLOW) {
+ /* When a ring buffer overflow happen start parsing interrupt
+ * from the last not overwritten vector (wptr + 16). Hopefully
+ * this should allow us to catchup.
+ */
+ dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, %d, %d)\n",
+ wptr, rdev->ih.rptr, (wptr + 16) + rdev->ih.ptr_mask);
+ rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
+ tmp = RREG32(IH_RB_CNTL);
+ tmp |= IH_WPTR_OVERFLOW_CLEAR;
+ WREG32(IH_RB_CNTL, tmp);
+ }
+ return (wptr & rdev->ih.ptr_mask);
+}
+
+int evergreen_irq_process(struct radeon_device *rdev)
+{
+ u32 wptr = evergreen_get_ih_wptr(rdev);
+ u32 rptr = rdev->ih.rptr;
+ u32 src_id, src_data;
+ u32 ring_index;
+ u32 disp_int, disp_int_cont, disp_int_cont2;
+ u32 disp_int_cont3, disp_int_cont4, disp_int_cont5;
+ unsigned long flags;
+ bool queue_hotplug = false;
+
+ DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
+ if (!rdev->ih.enabled)
+ return IRQ_NONE;
+
+ spin_lock_irqsave(&rdev->ih.lock, flags);
+
+ if (rptr == wptr) {
+ spin_unlock_irqrestore(&rdev->ih.lock, flags);
+ return IRQ_NONE;
+ }
+ if (rdev->shutdown) {
+ spin_unlock_irqrestore(&rdev->ih.lock, flags);
+ return IRQ_NONE;
+ }
+
+restart_ih:
+ /* display interrupts */
+ evergreen_irq_ack(rdev, &disp_int, &disp_int_cont, &disp_int_cont2,
+ &disp_int_cont3, &disp_int_cont4, &disp_int_cont5);
+
+ rdev->ih.wptr = wptr;
+ while (rptr != wptr) {
+ /* wptr/rptr are in bytes! */
+ ring_index = rptr / 4;
+ src_id = rdev->ih.ring[ring_index] & 0xff;
+ src_data = rdev->ih.ring[ring_index + 1] & 0xfffffff;
+
+ switch (src_id) {
+ case 1: /* D1 vblank/vline */
+ switch (src_data) {
+ case 0: /* D1 vblank */
+ if (disp_int & LB_D1_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 0);
+ wake_up(&rdev->irq.vblank_queue);
+ disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D1 vblank\n");
+ }
+ break;
+ case 1: /* D1 vline */
+ if (disp_int & LB_D1_VLINE_INTERRUPT) {
+ disp_int &= ~LB_D1_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D1 vline\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 2: /* D2 vblank/vline */
+ switch (src_data) {
+ case 0: /* D2 vblank */
+ if (disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 1);
+ wake_up(&rdev->irq.vblank_queue);
+ disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D2 vblank\n");
+ }
+ break;
+ case 1: /* D2 vline */
+ if (disp_int_cont & LB_D2_VLINE_INTERRUPT) {
+ disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D2 vline\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 3: /* D3 vblank/vline */
+ switch (src_data) {
+ case 0: /* D3 vblank */
+ if (disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 2);
+ wake_up(&rdev->irq.vblank_queue);
+ disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D3 vblank\n");
+ }
+ break;
+ case 1: /* D3 vline */
+ if (disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
+ disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D3 vline\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 4: /* D4 vblank/vline */
+ switch (src_data) {
+ case 0: /* D4 vblank */
+ if (disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 3);
+ wake_up(&rdev->irq.vblank_queue);
+ disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D4 vblank\n");
+ }
+ break;
+ case 1: /* D4 vline */
+ if (disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
+ disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D4 vline\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 5: /* D5 vblank/vline */
+ switch (src_data) {
+ case 0: /* D5 vblank */
+ if (disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 4);
+ wake_up(&rdev->irq.vblank_queue);
+ disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D5 vblank\n");
+ }
+ break;
+ case 1: /* D5 vline */
+ if (disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
+ disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D5 vline\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 6: /* D6 vblank/vline */
+ switch (src_data) {
+ case 0: /* D6 vblank */
+ if (disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 5);
+ wake_up(&rdev->irq.vblank_queue);
+ disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D6 vblank\n");
+ }
+ break;
+ case 1: /* D6 vline */
+ if (disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
+ disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D6 vline\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 42: /* HPD hotplug */
+ switch (src_data) {
+ case 0:
+ if (disp_int & DC_HPD1_INTERRUPT) {
+ disp_int &= ~DC_HPD1_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD1\n");
+ }
+ break;
+ case 1:
+ if (disp_int_cont & DC_HPD2_INTERRUPT) {
+ disp_int_cont &= ~DC_HPD2_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD2\n");
+ }
+ break;
+ case 2:
+ if (disp_int_cont2 & DC_HPD3_INTERRUPT) {
+ disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD3\n");
+ }
+ break;
+ case 3:
+ if (disp_int_cont3 & DC_HPD4_INTERRUPT) {
+ disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD4\n");
+ }
+ break;
+ case 4:
+ if (disp_int_cont4 & DC_HPD5_INTERRUPT) {
+ disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD5\n");
+ }
+ break;
+ case 5:
+ if (disp_int_cont5 & DC_HPD6_INTERRUPT) {
+ disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD6\n");
+ }
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 176: /* CP_INT in ring buffer */
+ case 177: /* CP_INT in IB1 */
+ case 178: /* CP_INT in IB2 */
+ DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
+ radeon_fence_process(rdev);
+ break;
+ case 181: /* CP EOP event */
+ DRM_DEBUG("IH: CP EOP\n");
+ break;
+ default:
+ DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+
+ /* wptr/rptr are in bytes! */
+ rptr += 16;
+ rptr &= rdev->ih.ptr_mask;
+ }
+ /* make sure wptr hasn't changed while processing */
+ wptr = evergreen_get_ih_wptr(rdev);
+ if (wptr != rdev->ih.wptr)
+ goto restart_ih;
+ if (queue_hotplug)
+ queue_work(rdev->wq, &rdev->hotplug_work);
+ rdev->ih.rptr = rptr;
+ WREG32(IH_RB_RPTR, rdev->ih.rptr);
+ spin_unlock_irqrestore(&rdev->ih.lock, flags);
+ return IRQ_HANDLED;
+}
+
static int evergreen_startup(struct radeon_device *rdev)
{
int r;
- /* XXX until interrupts are supported */
- if (!rdev->me_fw || !rdev->pfp_fw /*|| !rdev->rlc_fw*/) {
+ if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
r = r600_init_microcode(rdev);
if (r) {
DRM_ERROR("Failed to load firmware!\n");
@@ -1246,6 +1766,7 @@
DRM_ERROR("failed to pin blit object %d\n", r);
return r;
}
+#endif
/* Enable IRQ */
r = r600_irq_init(rdev);
@@ -1254,8 +1775,7 @@
radeon_irq_kms_fini(rdev);
return r;
}
- r600_irq_set(rdev);
-#endif
+ evergreen_irq_set(rdev);
r = radeon_ring_init(rdev, rdev->cp.ring_size);
if (r)
@@ -1312,8 +1832,8 @@
/* FIXME: we should wait for ring to be empty */
r700_cp_stop(rdev);
rdev->cp.ready = false;
+ evergreen_irq_suspend(rdev);
r600_wb_disable(rdev);
-
evergreen_pcie_gart_disable(rdev);
#if 0
/* unpin shaders bo */
@@ -1415,17 +1935,17 @@
r = radeon_bo_init(rdev);
if (r)
return r;
-#if 0
+
r = radeon_irq_kms_init(rdev);
if (r)
return r;
-#endif
+
rdev->cp.ring_obj = NULL;
r600_ring_init(rdev, 1024 * 1024);
-#if 0
+
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
-#endif
+
r = r600_pcie_gart_init(rdev);
if (r)
return r;
@@ -1436,10 +1956,8 @@
dev_err(rdev->dev, "disabling GPU acceleration\n");
r700_cp_fini(rdev);
r600_wb_fini(rdev);
-#if 0
r600_irq_fini(rdev);
radeon_irq_kms_fini(rdev);
-#endif
evergreen_pcie_gart_fini(rdev);
rdev->accel_working = false;
}
@@ -1461,14 +1979,11 @@
void evergreen_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
- evergreen_suspend(rdev);
-#if 0
- r600_blit_fini(rdev);
+ /*r600_blit_fini(rdev);*/
+ r700_cp_fini(rdev);
+ r600_wb_fini(rdev);
r600_irq_fini(rdev);
radeon_irq_kms_fini(rdev);
- radeon_ring_fini(rdev);
- r600_wb_fini(rdev);
-#endif
evergreen_pcie_gart_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);