radeon/si: add support for short HPD irqs
[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / si.c
index 73107fe9e46f7de25d1d22b3ad3ba0b28f40c8f0..86e75798320f0afac5d077ad51d2c83e355beb6a 100644 (file)
@@ -1264,6 +1264,36 @@ static void si_init_golden_registers(struct radeon_device *rdev)
        }
 }
 
+/**
+ * si_get_allowed_info_register - fetch the register for the info ioctl
+ *
+ * @rdev: radeon_device pointer
+ * @reg: register offset in bytes
+ * @val: register value
+ *
+ * Returns 0 for success or -EINVAL for an invalid register
+ *
+ */
+int si_get_allowed_info_register(struct radeon_device *rdev,
+                                u32 reg, u32 *val)
+{
+       switch (reg) {
+       case GRBM_STATUS:
+       case GRBM_STATUS2:
+       case GRBM_STATUS_SE0:
+       case GRBM_STATUS_SE1:
+       case SRBM_STATUS:
+       case SRBM_STATUS2:
+       case (DMA_STATUS_REG + DMA0_REGISTER_OFFSET):
+       case (DMA_STATUS_REG + DMA1_REGISTER_OFFSET):
+       case UVD_STATUS:
+               *val = RREG32(reg);
+               return 0;
+       default:
+               return -EINVAL;
+       }
+}
+
 #define PCIE_BUS_CLK                10000
 #define TCLK                        (PCIE_BUS_CLK / 10)
 
@@ -3162,6 +3192,8 @@ static void si_gpu_init(struct radeon_device *rdev)
        }
 
        WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
+       WREG32(SRBM_INT_CNTL, 1);
+       WREG32(SRBM_INT_ACK, 1);
 
        evergreen_fix_pci_max_read_req_size(rdev);
 
@@ -4699,12 +4731,6 @@ int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
                switch (pkt.type) {
                case RADEON_PACKET_TYPE0:
                        dev_err(rdev->dev, "Packet0 not allowed!\n");
-                       for (i = 0; i < ib->length_dw; i++) {
-                               if (i == idx)
-                                       printk("\t0x%08x <---\n", ib->ptr[i]);
-                               else
-                                       printk("\t0x%08x\n", ib->ptr[i]);
-                       }
                        ret = -EINVAL;
                        break;
                case RADEON_PACKET_TYPE2:
@@ -4736,8 +4762,15 @@ int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
                        ret = -EINVAL;
                        break;
                }
-               if (ret)
+               if (ret) {
+                       for (i = 0; i < ib->length_dw; i++) {
+                               if (i == idx)
+                                       printk("\t0x%08x <---\n", ib->ptr[i]);
+                               else
+                                       printk("\t0x%08x\n", ib->ptr[i]);
+                       }
                        break;
+               }
        } while (idx < ib->length_dw);
 
        return ret;
@@ -5910,6 +5943,7 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
        tmp = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
        WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, tmp);
        WREG32(GRBM_INT_CNTL, 0);
+       WREG32(SRBM_INT_CNTL, 0);
        if (rdev->num_crtc >= 2) {
                WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
                WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
@@ -6051,12 +6085,12 @@ int si_irq_set(struct radeon_device *rdev)
                (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
 
        if (!ASIC_IS_NODCE(rdev)) {
-               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;
+               hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
+               hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
+               hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
+               hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
+               hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
+               hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
        }
 
        dma_cntl = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
@@ -6119,27 +6153,27 @@ int si_irq_set(struct radeon_device *rdev)
        }
        if (rdev->irq.hpd[0]) {
                DRM_DEBUG("si_irq_set: hpd 1\n");
-               hpd1 |= DC_HPDx_INT_EN;
+               hpd1 |= DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN;
        }
        if (rdev->irq.hpd[1]) {
                DRM_DEBUG("si_irq_set: hpd 2\n");
-               hpd2 |= DC_HPDx_INT_EN;
+               hpd2 |= DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN;
        }
        if (rdev->irq.hpd[2]) {
                DRM_DEBUG("si_irq_set: hpd 3\n");
-               hpd3 |= DC_HPDx_INT_EN;
+               hpd3 |= DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN;
        }
        if (rdev->irq.hpd[3]) {
                DRM_DEBUG("si_irq_set: hpd 4\n");
-               hpd4 |= DC_HPDx_INT_EN;
+               hpd4 |= DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN;
        }
        if (rdev->irq.hpd[4]) {
                DRM_DEBUG("si_irq_set: hpd 5\n");
-               hpd5 |= DC_HPDx_INT_EN;
+               hpd5 |= DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN;
        }
        if (rdev->irq.hpd[5]) {
                DRM_DEBUG("si_irq_set: hpd 6\n");
-               hpd6 |= DC_HPDx_INT_EN;
+               hpd6 |= DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN;
        }
 
        WREG32(CP_INT_CNTL_RING0, cp_int_cntl);
@@ -6199,6 +6233,9 @@ int si_irq_set(struct radeon_device *rdev)
 
        WREG32(CG_THERMAL_INT, thermal_int);
 
+       /* posting read */
+       RREG32(SRBM_STATUS);
+
        return 0;
 }
 
@@ -6299,6 +6336,37 @@ static inline void si_irq_ack(struct radeon_device *rdev)
                tmp |= DC_HPDx_INT_ACK;
                WREG32(DC_HPD6_INT_CONTROL, tmp);
        }
+
+       if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT) {
+               tmp = RREG32(DC_HPD1_INT_CONTROL);
+               tmp |= DC_HPDx_RX_INT_ACK;
+               WREG32(DC_HPD1_INT_CONTROL, tmp);
+       }
+       if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
+               tmp = RREG32(DC_HPD2_INT_CONTROL);
+               tmp |= DC_HPDx_RX_INT_ACK;
+               WREG32(DC_HPD2_INT_CONTROL, tmp);
+       }
+       if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
+               tmp = RREG32(DC_HPD3_INT_CONTROL);
+               tmp |= DC_HPDx_RX_INT_ACK;
+               WREG32(DC_HPD3_INT_CONTROL, tmp);
+       }
+       if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
+               tmp = RREG32(DC_HPD4_INT_CONTROL);
+               tmp |= DC_HPDx_RX_INT_ACK;
+               WREG32(DC_HPD4_INT_CONTROL, tmp);
+       }
+       if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
+               tmp = RREG32(DC_HPD5_INT_CONTROL);
+               tmp |= DC_HPDx_RX_INT_ACK;
+               WREG32(DC_HPD5_INT_CONTROL, tmp);
+       }
+       if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
+               tmp = RREG32(DC_HPD5_INT_CONTROL);
+               tmp |= DC_HPDx_RX_INT_ACK;
+               WREG32(DC_HPD6_INT_CONTROL, tmp);
+       }
 }
 
 static void si_irq_disable(struct radeon_device *rdev)
@@ -6364,6 +6432,7 @@ int si_irq_process(struct radeon_device *rdev)
        u32 src_id, src_data, ring_id;
        u32 ring_index;
        bool queue_hotplug = false;
+       bool queue_dp = false;
        bool queue_thermal = false;
        u32 status, addr;
 
@@ -6604,11 +6673,57 @@ restart_ih:
                                        DRM_DEBUG("IH: HPD6\n");
                                }
                                break;
+                       case 6:
+                               if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT) {
+                                       rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+                                       queue_dp = true;
+                                       DRM_DEBUG("IH: HPD_RX 1\n");
+                               }
+                               break;
+                       case 7:
+                               if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
+                                       rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+                                       queue_dp = true;
+                                       DRM_DEBUG("IH: HPD_RX 2\n");
+                               }
+                               break;
+                       case 8:
+                               if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
+                                       rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+                                       queue_dp = true;
+                                       DRM_DEBUG("IH: HPD_RX 3\n");
+                               }
+                               break;
+                       case 9:
+                               if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
+                                       rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+                                       queue_dp = true;
+                                       DRM_DEBUG("IH: HPD_RX 4\n");
+                               }
+                               break;
+                       case 10:
+                               if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
+                                       rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+                                       queue_dp = true;
+                                       DRM_DEBUG("IH: HPD_RX 5\n");
+                               }
+                               break;
+                       case 11:
+                               if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
+                                       rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+                                       queue_dp = true;
+                                       DRM_DEBUG("IH: HPD_RX 6\n");
+                               }
+                               break;
                        default:
                                DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
                                break;
                        }
                        break;
+               case 96:
+                       DRM_ERROR("SRBM_READ_ERROR: 0x%x\n", RREG32(SRBM_READ_ERROR));
+                       WREG32(SRBM_INT_ACK, 0x1);
+                       break;
                case 124: /* UVD */
                        DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
                        radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
@@ -6682,6 +6797,8 @@ restart_ih:
                rptr &= rdev->ih.ptr_mask;
                WREG32(IH_RB_RPTR, rptr);
        }
+       if (queue_dp)
+               schedule_work(&rdev->dp_work);
        if (queue_hotplug)
                schedule_work(&rdev->hotplug_work);
        if (queue_thermal && rdev->pm.dpm_enabled)