[PATCH 9/9] drm/amdgpu: enable IH ring 1 and ring 2
Christian König
ckoenig.leichtzumerken at gmail.com
Mon Sep 24 12:38:20 UTC 2018
The entries are ignored for now, but it at least stops crashing the
hardware when somebody tries to push something to the other IH rings.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 4 +-
drivers/gpu/drm/amd/amdgpu/vega10_ih.c | 129 +++++++++++++++++++++++++-------
2 files changed, 106 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
index 3cc0e7ce40a0..0c6af0b38490 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
@@ -93,8 +93,8 @@ struct amdgpu_irq {
/* status, etc. */
bool msi_enabled; /* msi enabled */
- /* interrupt ring */
- struct amdgpu_ih_ring ih;
+ /* interrupt rings */
+ struct amdgpu_ih_ring ih, ih1, ih2;
/* gen irq stuff */
struct irq_domain *domain; /* GPU irq controller domain */
diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
index b4330eccee04..2d2036e0c8b1 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
@@ -50,6 +50,16 @@ static void vega10_ih_enable_interrupts(struct amdgpu_device *adev)
ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, ENABLE_INTR, 1);
WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
adev->irq.ih.enabled = true;
+
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING1, RB_ENABLE, 1);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
+ adev->irq.ih1.enabled = true;
+
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING2, RB_ENABLE, 1);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
+ adev->irq.ih2.enabled = true;
}
/**
@@ -71,6 +81,47 @@ static void vega10_ih_disable_interrupts(struct amdgpu_device *adev)
WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR, 0);
adev->irq.ih.enabled = false;
adev->irq.ih.rptr = 0;
+
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING1, RB_ENABLE, 0);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
+ /* set rptr, wptr to 0 */
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING1, 0);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING1, 0);
+ adev->irq.ih1.enabled = false;
+ adev->irq.ih1.rptr = 0;
+
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING2, RB_ENABLE, 0);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
+ /* set rptr, wptr to 0 */
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING2, 0);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING2, 0);
+ adev->irq.ih2.enabled = false;
+ adev->irq.ih2.rptr = 0;
+}
+
+static uint32_t vega10_ih_rb_cntl(struct amdgpu_ih_ring *ih, uint32_t ih_rb_cntl)
+{
+ int rb_bufsz = order_base_2(ih->ring_size / 4);
+
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
+ MC_SPACE, ih->use_bus_addr ? 1 : 4);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
+ WPTR_OVERFLOW_CLEAR, 1);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
+ WPTR_OVERFLOW_ENABLE, 1);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RB_SIZE, rb_bufsz);
+ /* Ring Buffer write pointer writeback. If enabled, IH_RB_WPTR register
+ * value is written to memory
+ */
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
+ WPTR_WRITEBACK_ENABLE, 1);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_SNOOP, 1);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_RO, 0);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_VMID, 0);
+
+ return ih_rb_cntl;
}
/**
@@ -86,9 +137,8 @@ static void vega10_ih_disable_interrupts(struct amdgpu_device *adev)
*/
static int vega10_ih_irq_init(struct amdgpu_device *adev)
{
- struct amdgpu_ih_ring *ih = &adev->irq.ih;
+ struct amdgpu_ih_ring *ih;
int ret = 0;
- int rb_bufsz;
u32 ih_rb_cntl, ih_doorbell_rtpr;
u32 tmp;
@@ -97,26 +147,15 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
adev->nbio_funcs->ih_control(adev);
- ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL);
+ ih = &adev->irq.ih;
/* Ring Buffer base. [39:8] of 40-bit address of the beginning of the ring buffer*/
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE, adev->irq.ih.gpu_addr >> 8);
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI,
- (adev->irq.ih.gpu_addr >> 40) & 0xff);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_SPACE,
- ih->use_bus_addr ? 1 : 4);
- rb_bufsz = order_base_2(adev->irq.ih.ring_size / 4);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_OVERFLOW_ENABLE, 1);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RB_SIZE, rb_bufsz);
- /* Ring Buffer write pointer writeback. If enabled, IH_RB_WPTR register value is written to memory */
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_WRITEBACK_ENABLE, 1);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_SNOOP, 1);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_RO, 0);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_VMID, 0);
-
- if (adev->irq.msi_enabled)
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RPTR_REARM, 1);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE, ih->gpu_addr >> 8);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI, (ih->gpu_addr >> 40) & 0xff);
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL);
+ ih_rb_cntl = vega10_ih_rb_cntl(ih, ih_rb_cntl);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RPTR_REARM,
+ !!adev->irq.msi_enabled);
WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
/* set the writeback address whether it's enabled or not */
@@ -131,18 +170,49 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
ih_doorbell_rtpr = RREG32_SOC15(OSSSYS, 0, mmIH_DOORBELL_RPTR);
if (adev->irq.ih.use_doorbell) {
- ih_doorbell_rtpr = REG_SET_FIELD(ih_doorbell_rtpr, IH_DOORBELL_RPTR,
- OFFSET, adev->irq.ih.doorbell_index);
- ih_doorbell_rtpr = REG_SET_FIELD(ih_doorbell_rtpr, IH_DOORBELL_RPTR,
+ ih_doorbell_rtpr = REG_SET_FIELD(ih_doorbell_rtpr,
+ IH_DOORBELL_RPTR, OFFSET,
+ adev->irq.ih.doorbell_index);
+ ih_doorbell_rtpr = REG_SET_FIELD(ih_doorbell_rtpr,
+ IH_DOORBELL_RPTR,
ENABLE, 1);
} else {
- ih_doorbell_rtpr = REG_SET_FIELD(ih_doorbell_rtpr, IH_DOORBELL_RPTR,
+ ih_doorbell_rtpr = REG_SET_FIELD(ih_doorbell_rtpr,
+ IH_DOORBELL_RPTR,
ENABLE, 0);
}
WREG32_SOC15(OSSSYS, 0, mmIH_DOORBELL_RPTR, ih_doorbell_rtpr);
adev->nbio_funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell,
adev->irq.ih.doorbell_index);
+ ih = &adev->irq.ih1;
+ /* Ring Buffer base. [39:8] of 40-bit address of the beginning of the ring buffer*/
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_RING1, ih->gpu_addr >> 8);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI_RING1,
+ (ih->gpu_addr >> 40) & 0xff);
+
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
+ ih_rb_cntl = vega10_ih_rb_cntl(ih, ih_rb_cntl);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
+
+ /* set rptr, wptr to 0 */
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING1, 0);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING1, 0);
+
+ ih = &adev->irq.ih2;
+ /* Ring Buffer base. [39:8] of 40-bit address of the beginning of the ring buffer*/
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_RING2, ih->gpu_addr >> 8);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI_RING2,
+ (ih->gpu_addr >> 40) & 0xff);
+
+ ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
+ ih_rb_cntl = vega10_ih_rb_cntl(ih, ih_rb_cntl);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
+
+ /* set rptr, wptr to 0 */
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING2, 0);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING2, 0);
+
tmp = RREG32_SOC15(OSSSYS, 0, mmIH_STORM_CLIENT_LIST_CNTL);
tmp = REG_SET_FIELD(tmp, IH_STORM_CLIENT_LIST_CNTL,
CLIENT18_IS_STORM_CLIENT, 1);
@@ -333,7 +403,6 @@ static void vega10_ih_decode_iv(struct amdgpu_device *adev,
entry->src_data[2] = dw[6];
entry->src_data[3] = dw[7];
-
/* wptr/rptr are in bytes! */
adev->irq.ih.rptr += 32;
}
@@ -374,6 +443,14 @@ static int vega10_ih_sw_init(void *handle)
if (r)
return r;
+ r = amdgpu_ih_ring_init(adev, &adev->irq.ih1, 256 * 1024, true);
+ if (r)
+ return r;
+
+ r = amdgpu_ih_ring_init(adev, &adev->irq.ih2, 256 * 1024, true);
+ if (r)
+ return r;
+
adev->irq.ih.use_doorbell = true;
adev->irq.ih.doorbell_index = AMDGPU_DOORBELL64_IH << 1;
@@ -387,6 +464,8 @@ static int vega10_ih_sw_fini(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
amdgpu_irq_fini(adev);
+ amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
+ amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
amdgpu_ih_ring_fini(adev, &adev->irq.ih);
return 0;
--
2.14.1
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