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drm/amdgpu: enable IH ring 1 and ring 2 v4

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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.

v2: limit ring size, add TODO comment
v3: only program rings if they are actually allocated
v4: limit the ring init to Vega10

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-09-18 14:51:35 +02:00 committed by Alex Deucher
parent e95b93ce41
commit ad710812b5
2 changed files with 123 additions and 26 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
View File

@ -87,8 +87,8 @@ 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;
const struct amdgpu_ih_funcs *ih_funcs;
/* gen irq stuff */

145
drivers/gpu/drm/amd/amdgpu/vega10_ih.c
View File

@ -50,6 +50,22 @@ 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;
if (adev->irq.ih1.ring_size) {
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;
}
if (adev->irq.ih2.ring_size) {
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 +87,53 @@ 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;
if (adev->irq.ih1.ring_size) {
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;
}
if (adev->irq.ih2.ring_size) {
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 +149,8 @@ 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 +159,15 @@ 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 */
@ -131,16 +182,49 @@ 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);
ih = &adev->irq.ih1;
if (ih->ring_size) {
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;
if (ih->ring_size) {
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);
@ -297,6 +381,17 @@ static int vega10_ih_sw_init(void *handle)
if (r)
return r;
if (adev->asic_type == CHIP_VEGA10) {
r = amdgpu_ih_ring_init(adev, &adev->irq.ih1, PAGE_SIZE, true);
if (r)
return r;
r = amdgpu_ih_ring_init(adev, &adev->irq.ih2, PAGE_SIZE, true);
if (r)
return r;
}
/* TODO add doorbell for IH1 & IH2 as well */
adev->irq.ih.use_doorbell = true;
adev->irq.ih.doorbell_index = adev->doorbell_index.ih << 1;
@ -310,6 +405,8 @@ 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;