summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/radeon/r600.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/radeon/r600.c')
-rw-r--r--drivers/gpu/drm/radeon/r600.c561
1 files changed, 534 insertions, 27 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 3dbd93e4434..5067ab7fdce 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -38,8 +38,10 @@
#define PFP_UCODE_SIZE 576
#define PM4_UCODE_SIZE 1792
+#define RLC_UCODE_SIZE 768
#define R700_PFP_UCODE_SIZE 848
#define R700_PM4_UCODE_SIZE 1360
+#define R700_RLC_UCODE_SIZE 1024
/* Firmware Names */
MODULE_FIRMWARE("radeon/R600_pfp.bin");
@@ -62,6 +64,8 @@ MODULE_FIRMWARE("radeon/RV730_pfp.bin");
MODULE_FIRMWARE("radeon/RV730_me.bin");
MODULE_FIRMWARE("radeon/RV710_pfp.bin");
MODULE_FIRMWARE("radeon/RV710_me.bin");
+MODULE_FIRMWARE("radeon/R600_rlc.bin");
+MODULE_FIRMWARE("radeon/R700_rlc.bin");
int r600_debugfs_mc_info_init(struct radeon_device *rdev);
@@ -1114,11 +1118,12 @@ void r600_cp_stop(struct radeon_device *rdev)
WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
}
-int r600_cp_init_microcode(struct radeon_device *rdev)
+int r600_init_microcode(struct radeon_device *rdev)
{
struct platform_device *pdev;
const char *chip_name;
- size_t pfp_req_size, me_req_size;
+ const char *rlc_chip_name;
+ size_t pfp_req_size, me_req_size, rlc_req_size;
char fw_name[30];
int err;
@@ -1132,30 +1137,62 @@ int r600_cp_init_microcode(struct radeon_device *rdev)
}
switch (rdev->family) {
- case CHIP_R600: chip_name = "R600"; break;
- case CHIP_RV610: chip_name = "RV610"; break;
- case CHIP_RV630: chip_name = "RV630"; break;
- case CHIP_RV620: chip_name = "RV620"; break;
- case CHIP_RV635: chip_name = "RV635"; break;
- case CHIP_RV670: chip_name = "RV670"; break;
+ case CHIP_R600:
+ chip_name = "R600";
+ rlc_chip_name = "R600";
+ break;
+ case CHIP_RV610:
+ chip_name = "RV610";
+ rlc_chip_name = "R600";
+ break;
+ case CHIP_RV630:
+ chip_name = "RV630";
+ rlc_chip_name = "R600";
+ break;
+ case CHIP_RV620:
+ chip_name = "RV620";
+ rlc_chip_name = "R600";
+ break;
+ case CHIP_RV635:
+ chip_name = "RV635";
+ rlc_chip_name = "R600";
+ break;
+ case CHIP_RV670:
+ chip_name = "RV670";
+ rlc_chip_name = "R600";
+ break;
case CHIP_RS780:
- case CHIP_RS880: chip_name = "RS780"; break;
- case CHIP_RV770: chip_name = "RV770"; break;
+ case CHIP_RS880:
+ chip_name = "RS780";
+ rlc_chip_name = "R600";
+ break;
+ case CHIP_RV770:
+ chip_name = "RV770";
+ rlc_chip_name = "R700";
+ break;
case CHIP_RV730:
- case CHIP_RV740: chip_name = "RV730"; break;
- case CHIP_RV710: chip_name = "RV710"; break;
+ case CHIP_RV740:
+ chip_name = "RV730";
+ rlc_chip_name = "R700";
+ break;
+ case CHIP_RV710:
+ chip_name = "RV710";
+ rlc_chip_name = "R700";
+ break;
default: BUG();
}
if (rdev->family >= CHIP_RV770) {
pfp_req_size = R700_PFP_UCODE_SIZE * 4;
me_req_size = R700_PM4_UCODE_SIZE * 4;
+ rlc_req_size = R700_RLC_UCODE_SIZE * 4;
} else {
pfp_req_size = PFP_UCODE_SIZE * 4;
me_req_size = PM4_UCODE_SIZE * 12;
+ rlc_req_size = RLC_UCODE_SIZE * 4;
}
- DRM_INFO("Loading %s CP Microcode\n", chip_name);
+ DRM_INFO("Loading %s Microcode\n", chip_name);
snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
@@ -1179,6 +1216,18 @@ int r600_cp_init_microcode(struct radeon_device *rdev)
rdev->me_fw->size, fw_name);
err = -EINVAL;
}
+
+ snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
+ err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
+ if (err)
+ goto out;
+ if (rdev->rlc_fw->size != rlc_req_size) {
+ printk(KERN_ERR
+ "r600_rlc: Bogus length %zu in firmware \"%s\"\n",
+ rdev->rlc_fw->size, fw_name);
+ err = -EINVAL;
+ }
+
out:
platform_device_unregister(pdev);
@@ -1191,6 +1240,8 @@ out:
rdev->pfp_fw = NULL;
release_firmware(rdev->me_fw);
rdev->me_fw = NULL;
+ release_firmware(rdev->rlc_fw);
+ rdev->rlc_fw = NULL;
}
return err;
}
@@ -1437,10 +1488,14 @@ int r600_wb_enable(struct radeon_device *rdev)
void r600_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
+ /* Also consider EVENT_WRITE_EOP. it handles the interrupts + timestamps + events */
/* Emit fence sequence & fire IRQ */
radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
radeon_ring_write(rdev, ((rdev->fence_drv.scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
radeon_ring_write(rdev, fence->seq);
+ /* CP_INTERRUPT packet 3 no longer exists, use packet 0 */
+ radeon_ring_write(rdev, PACKET0(CP_INT_STATUS, 0));
+ radeon_ring_write(rdev, RB_INT_STAT);
}
int r600_copy_dma(struct radeon_device *rdev,
@@ -1463,18 +1518,6 @@ int r600_copy_blit(struct radeon_device *rdev,
return 0;
}
-int r600_irq_process(struct radeon_device *rdev)
-{
- /* FIXME: implement */
- return 0;
-}
-
-int r600_irq_set(struct radeon_device *rdev)
-{
- /* FIXME: implement */
- return 0;
-}
-
int r600_set_surface_reg(struct radeon_device *rdev, int reg,
uint32_t tiling_flags, uint32_t pitch,
uint32_t offset, uint32_t obj_size)
@@ -1527,6 +1570,16 @@ int r600_startup(struct radeon_device *rdev)
return r;
}
+ /* Enable IRQ */
+ rdev->irq.sw_int = true;
+ r = r600_irq_init(rdev);
+ if (r) {
+ DRM_ERROR("radeon: IH init failed (%d).\n", r);
+ radeon_irq_kms_fini(rdev);
+ return r;
+ }
+ r600_irq_set(rdev);
+
r = radeon_ring_init(rdev, rdev->cp.ring_size);
if (r)
return r;
@@ -1661,11 +1714,19 @@ int r600_init(struct radeon_device *rdev)
r = radeon_object_init(rdev);
if (r)
return r;
+
+ r = radeon_irq_kms_init(rdev);
+ if (r)
+ return r;
+
rdev->cp.ring_obj = NULL;
r600_ring_init(rdev, 1024 * 1024);
- if (!rdev->me_fw || !rdev->pfp_fw) {
- r = r600_cp_init_microcode(rdev);
+ rdev->ih.ring_obj = NULL;
+ r600_ih_ring_init(rdev, 64 * 1024);
+
+ if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
+ r = r600_init_microcode(rdev);
if (r) {
DRM_ERROR("Failed to load firmware!\n");
return r;
@@ -1712,6 +1773,8 @@ void r600_fini(struct radeon_device *rdev)
r600_suspend(rdev);
r600_blit_fini(rdev);
+ r600_irq_fini(rdev);
+ radeon_irq_kms_fini(rdev);
radeon_ring_fini(rdev);
r600_wb_fini(rdev);
r600_pcie_gart_fini(rdev);
@@ -1806,8 +1869,452 @@ int r600_ib_test(struct radeon_device *rdev)
return r;
}
+/*
+ * Interrupts
+ *
+ * Interrupts use a ring buffer on r6xx/r7xx hardware. It works pretty
+ * the same as the CP ring buffer, but in reverse. Rather than the CPU
+ * writing to the ring and the GPU consuming, the GPU writes to the ring
+ * and host consumes. As the host irq handler processes interrupts, it
+ * increments the rptr. When the rptr catches up with the wptr, all the
+ * current interrupts have been processed.
+ */
+
+void r600_ih_ring_init(struct radeon_device *rdev, unsigned ring_size)
+{
+ u32 rb_bufsz;
+
+ /* Align ring size */
+ rb_bufsz = drm_order(ring_size / 4);
+ ring_size = (1 << rb_bufsz) * 4;
+ rdev->ih.ring_size = ring_size;
+ rdev->ih.align_mask = 4 - 1;
+}
+
+static int r600_ih_ring_alloc(struct radeon_device *rdev, unsigned ring_size)
+{
+ int r;
+
+ rdev->ih.ring_size = ring_size;
+ /* Allocate ring buffer */
+ if (rdev->ih.ring_obj == NULL) {
+ r = radeon_object_create(rdev, NULL, rdev->ih.ring_size,
+ true,
+ RADEON_GEM_DOMAIN_GTT,
+ false,
+ &rdev->ih.ring_obj);
+ if (r) {
+ DRM_ERROR("radeon: failed to create ih ring buffer (%d).\n", r);
+ return r;
+ }
+ r = radeon_object_pin(rdev->ih.ring_obj,
+ RADEON_GEM_DOMAIN_GTT,
+ &rdev->ih.gpu_addr);
+ if (r) {
+ DRM_ERROR("radeon: failed to pin ih ring buffer (%d).\n", r);
+ return r;
+ }
+ r = radeon_object_kmap(rdev->ih.ring_obj,
+ (void **)&rdev->ih.ring);
+ if (r) {
+ DRM_ERROR("radeon: failed to map ih ring buffer (%d).\n", r);
+ return r;
+ }
+ }
+ rdev->ih.ptr_mask = (rdev->cp.ring_size / 4) - 1;
+ rdev->ih.rptr = 0;
+
+ return 0;
+}
+
+static void r600_ih_ring_fini(struct radeon_device *rdev)
+{
+ if (rdev->ih.ring_obj) {
+ radeon_object_kunmap(rdev->ih.ring_obj);
+ radeon_object_unpin(rdev->ih.ring_obj);
+ radeon_object_unref(&rdev->ih.ring_obj);
+ rdev->ih.ring = NULL;
+ rdev->ih.ring_obj = NULL;
+ }
+}
+
+static void r600_rlc_stop(struct radeon_device *rdev)
+{
+
+ if (rdev->family >= CHIP_RV770) {
+ /* r7xx asics need to soft reset RLC before halting */
+ WREG32(SRBM_SOFT_RESET, SOFT_RESET_RLC);
+ RREG32(SRBM_SOFT_RESET);
+ udelay(15000);
+ WREG32(SRBM_SOFT_RESET, 0);
+ RREG32(SRBM_SOFT_RESET);
+ }
+
+ WREG32(RLC_CNTL, 0);
+}
+
+static void r600_rlc_start(struct radeon_device *rdev)
+{
+ WREG32(RLC_CNTL, RLC_ENABLE);
+}
+
+static int r600_rlc_init(struct radeon_device *rdev)
+{
+ u32 i;
+ const __be32 *fw_data;
+
+ if (!rdev->rlc_fw)
+ return -EINVAL;
+
+ r600_rlc_stop(rdev);
+
+ WREG32(RLC_HB_BASE, 0);
+ WREG32(RLC_HB_CNTL, 0);
+ WREG32(RLC_HB_RPTR, 0);
+ WREG32(RLC_HB_WPTR, 0);
+ WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
+ WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
+ WREG32(RLC_MC_CNTL, 0);
+ WREG32(RLC_UCODE_CNTL, 0);
+
+ fw_data = (const __be32 *)rdev->rlc_fw->data;
+ if (rdev->family >= CHIP_RV770) {
+ for (i = 0; i < R700_RLC_UCODE_SIZE; i++) {
+ WREG32(RLC_UCODE_ADDR, i);
+ WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
+ }
+ } else {
+ for (i = 0; i < RLC_UCODE_SIZE; i++) {
+ WREG32(RLC_UCODE_ADDR, i);
+ WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
+ }
+ }
+ WREG32(RLC_UCODE_ADDR, 0);
+
+ r600_rlc_start(rdev);
+
+ return 0;
+}
+
+static void r600_enable_interrupts(struct radeon_device *rdev)
+{
+ u32 ih_cntl = RREG32(IH_CNTL);
+ u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
+
+ ih_cntl |= ENABLE_INTR;
+ ih_rb_cntl |= IH_RB_ENABLE;
+ WREG32(IH_CNTL, ih_cntl);
+ WREG32(IH_RB_CNTL, ih_rb_cntl);
+ rdev->ih.enabled = true;
+}
+
+static void r600_disable_interrupts(struct radeon_device *rdev)
+{
+ u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
+ u32 ih_cntl = RREG32(IH_CNTL);
+
+ ih_rb_cntl &= ~IH_RB_ENABLE;
+ ih_cntl &= ~ENABLE_INTR;
+ WREG32(IH_RB_CNTL, ih_rb_cntl);
+ WREG32(IH_CNTL, ih_cntl);
+ /* set rptr, wptr to 0 */
+ WREG32(IH_RB_RPTR, 0);
+ WREG32(IH_RB_WPTR, 0);
+ rdev->ih.enabled = false;
+ rdev->ih.wptr = 0;
+ rdev->ih.rptr = 0;
+}
+
+int r600_irq_init(struct radeon_device *rdev)
+{
+ int ret = 0;
+ int rb_bufsz;
+ u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
+
+ /* allocate ring */
+ ret = r600_ih_ring_alloc(rdev, rdev->ih.ring_size);
+ if (ret)
+ return ret;
+
+ /* disable irqs */
+ r600_disable_interrupts(rdev);
+
+ /* init rlc */
+ ret = r600_rlc_init(rdev);
+ if (ret) {
+ r600_ih_ring_fini(rdev);
+ return ret;
+ }
+
+ /* setup interrupt control */
+ /* set dummy read address to ring address */
+ WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
+ interrupt_cntl = RREG32(INTERRUPT_CNTL);
+ /* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
+ * IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
+ */
+ interrupt_cntl &= ~IH_DUMMY_RD_OVERRIDE;
+ /* IH_REQ_NONSNOOP_EN=1 if ring is in non-cacheable memory, e.g., vram */
+ interrupt_cntl &= ~IH_REQ_NONSNOOP_EN;
+ WREG32(INTERRUPT_CNTL, interrupt_cntl);
+
+ WREG32(IH_RB_BASE, rdev->ih.gpu_addr >> 8);
+ rb_bufsz = drm_order(rdev->ih.ring_size / 4);
+
+ ih_rb_cntl = (IH_WPTR_OVERFLOW_ENABLE |
+ IH_WPTR_OVERFLOW_CLEAR |
+ (rb_bufsz << 1));
+ /* WPTR writeback, not yet */
+ /*ih_rb_cntl |= IH_WPTR_WRITEBACK_ENABLE;*/
+ WREG32(IH_RB_WPTR_ADDR_LO, 0);
+ WREG32(IH_RB_WPTR_ADDR_HI, 0);
+
+ WREG32(IH_RB_CNTL, ih_rb_cntl);
+
+ /* set rptr, wptr to 0 */
+ WREG32(IH_RB_RPTR, 0);
+ WREG32(IH_RB_WPTR, 0);
+
+ /* Default settings for IH_CNTL (disabled at first) */
+ ih_cntl = MC_WRREQ_CREDIT(0x10) | MC_WR_CLEAN_CNT(0x10);
+ /* RPTR_REARM only works if msi's are enabled */
+ if (rdev->msi_enabled)
+ ih_cntl |= RPTR_REARM;
+
+#ifdef __BIG_ENDIAN
+ ih_cntl |= IH_MC_SWAP(IH_MC_SWAP_32BIT);
+#endif
+ WREG32(IH_CNTL, ih_cntl);
+
+ /* force the active interrupt state to all disabled */
+ WREG32(CP_INT_CNTL, 0);
+ WREG32(GRBM_INT_CNTL, 0);
+ WREG32(DxMODE_INT_MASK, 0);
+
+ /* enable irqs */
+ r600_enable_interrupts(rdev);
+
+ return ret;
+}
+
+void r600_irq_fini(struct radeon_device *rdev)
+{
+ r600_disable_interrupts(rdev);
+ r600_rlc_stop(rdev);
+ r600_ih_ring_fini(rdev);
+}
+
+int r600_irq_set(struct radeon_device *rdev)
+{
+ uint32_t cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
+ uint32_t mode_int = 0;
+
+ /* don't enable anything if the ih is disabled */
+ if (!rdev->ih.enabled)
+ return 0;
+
+ if (rdev->irq.sw_int) {
+ DRM_DEBUG("r600_irq_set: sw int\n");
+ cp_int_cntl |= RB_INT_ENABLE;
+ }
+ if (rdev->irq.crtc_vblank_int[0]) {
+ DRM_DEBUG("r600_irq_set: vblank 0\n");
+ mode_int |= D1MODE_VBLANK_INT_MASK;
+ }
+ if (rdev->irq.crtc_vblank_int[1]) {
+ DRM_DEBUG("r600_irq_set: vblank 1\n");
+ mode_int |= D2MODE_VBLANK_INT_MASK;
+ }
+
+ WREG32(CP_INT_CNTL, cp_int_cntl);
+ WREG32(DxMODE_INT_MASK, mode_int);
+
+ return 0;
+}
+
+static inline void r600_irq_ack(struct radeon_device *rdev, u32 disp_int)
+{
+
+ if (disp_int & LB_D1_VBLANK_INTERRUPT)
+ WREG32(D1MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
+ if (disp_int & LB_D1_VLINE_INTERRUPT)
+ WREG32(D1MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
+ if (disp_int & LB_D2_VBLANK_INTERRUPT)
+ WREG32(D2MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
+ if (disp_int & LB_D2_VLINE_INTERRUPT)
+ WREG32(D2MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
+
+}
+
+void r600_irq_disable(struct radeon_device *rdev)
+{
+ u32 disp_int;
+
+ r600_disable_interrupts(rdev);
+ /* Wait and acknowledge irq */
+ mdelay(1);
+ if (ASIC_IS_DCE3(rdev))
+ disp_int = RREG32(DCE3_DISP_INTERRUPT_STATUS);
+ else
+ disp_int = RREG32(DISP_INTERRUPT_STATUS);
+ r600_irq_ack(rdev, disp_int);
+}
+
+static inline u32 r600_get_ih_wptr(struct radeon_device *rdev)
+{
+ u32 wptr, tmp;
+
+ /* XXX use writeback */
+ wptr = RREG32(IH_RB_WPTR);
+
+ if (wptr & RB_OVERFLOW) {
+ WARN_ON(1);
+ /* XXX deal with overflow */
+ DRM_ERROR("IH RB overflow\n");
+ tmp = RREG32(IH_RB_CNTL);
+ tmp |= IH_WPTR_OVERFLOW_CLEAR;
+ WREG32(IH_RB_CNTL, tmp);
+ }
+ wptr = wptr & WPTR_OFFSET_MASK;
+ return wptr;
+}
+/* r600 IV Ring
+ * Each IV ring entry is 128 bits:
+ * [7:0] - interrupt source id
+ * [31:8] - reserved
+ * [59:32] - interrupt source data
+ * [127:60] - reserved
+ *
+ * The basic interrupt vector entries
+ * are decoded as follows:
+ * src_id src_data description
+ * 1 0 D1 Vblank
+ * 1 1 D1 Vline
+ * 5 0 D2 Vblank
+ * 5 1 D2 Vline
+ * 19 0 FP Hot plug detection A
+ * 19 1 FP Hot plug detection B
+ * 19 2 DAC A auto-detection
+ * 19 3 DAC B auto-detection
+ * 176 - CP_INT RB
+ * 177 - CP_INT IB1
+ * 178 - CP_INT IB2
+ * 181 - EOP Interrupt
+ * 233 - GUI Idle
+ *
+ * Note, these are based on r600 and may need to be
+ * adjusted or added to on newer asics
+ */
+
+int r600_irq_process(struct radeon_device *rdev)
+{
+ u32 wptr = r600_get_ih_wptr(rdev);
+ u32 rptr = rdev->ih.rptr;
+ u32 src_id, src_data;
+ u32 last_entry = rdev->ih.ring_size - 16;
+ u32 ring_index, disp_int;
+ unsigned long flags;
+
+ DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
+
+ 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 */
+ if (ASIC_IS_DCE3(rdev))
+ disp_int = RREG32(DCE3_DISP_INTERRUPT_STATUS);
+ else
+ disp_int = RREG32(DISP_INTERRUPT_STATUS);
+ r600_irq_ack(rdev, disp_int);
+
+ 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);
+ 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_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+ break;
+ case 5: /* D2 vblank/vline */
+ switch (src_data) {
+ case 0: /* D2 vblank */
+ if (disp_int & LB_D2_VBLANK_INTERRUPT) {
+ drm_handle_vblank(rdev->ddev, 1);
+ disp_int &= ~LB_D2_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D2 vblank\n");
+ }
+ break;
+ case 1: /* D1 vline */
+ if (disp_int & LB_D2_VLINE_INTERRUPT) {
+ disp_int &= ~LB_D2_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D2 vline\n");
+ }
+ break;
+ default:
+ DRM_ERROR("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_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
+ break;
+ }
+
+ /* wptr/rptr are in bytes! */
+ if (rptr == last_entry)
+ rptr = 0;
+ else
+ rptr += 16;
+ }
+ /* make sure wptr hasn't changed while processing */
+ wptr = r600_get_ih_wptr(rdev);
+ if (wptr != rdev->ih.wptr)
+ goto restart_ih;
+ rdev->ih.rptr = rptr;
+ WREG32(IH_RB_RPTR, rdev->ih.rptr);
+ spin_unlock_irqrestore(&rdev->ih.lock, flags);
+ return IRQ_HANDLED;
+}
/*
* Debugfs info
generated by cgit (git 2.34.1) at 2024-10-02 03:14:17 +0000