drm/radeon/kms: add dpm support for KB/KV
This adds dpm support for KB/KV asics. This includes:
- dynamic engine clock scaling
- dynamic voltage scaling
- power containment
- shader power scaling
Set radeon.dpm=1 to enable.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index d0804f7..87e5aee 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -6593,6 +6593,7 @@
u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
u32 grbm_int_cntl = 0;
u32 dma_cntl, dma_cntl1;
+ u32 thermal_int;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
@@ -6625,6 +6626,9 @@
cp_m2p2 = RREG32(CP_ME2_PIPE2_INT_CNTL) & ~TIME_STAMP_INT_ENABLE;
cp_m2p3 = RREG32(CP_ME2_PIPE3_INT_CNTL) & ~TIME_STAMP_INT_ENABLE;
+ thermal_int = RREG32_SMC(CG_THERMAL_INT_CTRL) &
+ ~(THERM_INTH_MASK | THERM_INTL_MASK);
+
/* enable CP interrupts on all rings */
if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
DRM_DEBUG("cik_irq_set: sw int gfx\n");
@@ -6782,6 +6786,11 @@
hpd6 |= DC_HPDx_INT_EN;
}
+ if (rdev->irq.dpm_thermal) {
+ DRM_DEBUG("dpm thermal\n");
+ thermal_int |= THERM_INTH_MASK | THERM_INTL_MASK;
+ }
+
WREG32(CP_INT_CNTL_RING0, cp_int_cntl);
WREG32(SDMA0_CNTL + SDMA0_REGISTER_OFFSET, dma_cntl);
@@ -6816,6 +6825,8 @@
WREG32(DC_HPD5_INT_CONTROL, hpd5);
WREG32(DC_HPD6_INT_CONTROL, hpd6);
+ WREG32_SMC(CG_THERMAL_INT_CTRL, thermal_int);
+
return 0;
}
@@ -7027,6 +7038,7 @@
bool queue_hotplug = false;
bool queue_reset = false;
u32 addr, status, mc_client;
+ bool queue_thermal = false;
if (!rdev->ih.enabled || rdev->shutdown)
return IRQ_NONE;
@@ -7377,6 +7389,19 @@
break;
}
break;
+ case 230: /* thermal low to high */
+ DRM_DEBUG("IH: thermal low to high\n");
+ rdev->pm.dpm.thermal.high_to_low = false;
+ queue_thermal = true;
+ break;
+ case 231: /* thermal high to low */
+ DRM_DEBUG("IH: thermal high to low\n");
+ rdev->pm.dpm.thermal.high_to_low = true;
+ queue_thermal = true;
+ break;
+ case 233: /* GUI IDLE */
+ DRM_DEBUG("IH: GUI idle\n");
+ break;
case 241: /* SDMA Privileged inst */
case 247: /* SDMA Privileged inst */
DRM_ERROR("Illegal instruction in SDMA command stream\n");
@@ -7416,9 +7441,6 @@
break;
}
break;
- case 233: /* GUI IDLE */
- DRM_DEBUG("IH: GUI idle\n");
- break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
break;
@@ -7432,6 +7454,8 @@
schedule_work(&rdev->hotplug_work);
if (queue_reset)
schedule_work(&rdev->reset_work);
+ if (queue_thermal)
+ schedule_work(&rdev->pm.dpm.thermal.work);
rdev->ih.rptr = rptr;
WREG32(IH_RB_RPTR, rdev->ih.rptr);
atomic_set(&rdev->ih.lock, 0);