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drm/amdgpu: add ras_controller and err_event_athub interrupt support 

Ras controller interrupt and Ras err event athub interrupt are two dedicated
interrupts for RAS support.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2019-06-05 14:57:00 +08:00 committed by Alex Deucher
parent fc098fb4ed
commit 4e644fffb5
3 changed files with 143 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
View File

@ -79,10 +79,14 @@ struct amdgpu_nbio_funcs {
void (*remap_hdp_registers)(struct amdgpu_device *adev);
void (*handle_ras_controller_intr_no_bifring)(struct amdgpu_device *adev);
void (*handle_ras_err_event_athub_intr_no_bifring)(struct amdgpu_device *adev);
int (*init_ras_controller_interrupt)(struct amdgpu_device *adev);
int (*init_ras_err_event_athub_interrupt)(struct amdgpu_device *adev);
};
struct amdgpu_nbio {
const struct nbio_hdp_flush_reg *hdp_flush_reg;
struct amdgpu_irq_src ras_controller_irq;
struct amdgpu_irq_src ras_err_event_athub_irq;
const struct amdgpu_nbio_funcs *funcs;
};

14
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
View File

@ -29,6 +29,7 @@
#include "amdgpu.h"
#include "amdgpu_ras.h"
#include "amdgpu_atomfirmware.h"
#include "ivsrcid/nbio/irqsrcs_nbif_7_4.h"
const char *ras_error_string[] = {
"none",
@ -1500,6 +1501,7 @@ static void amdgpu_ras_check_supported(struct amdgpu_device *adev,
int amdgpu_ras_init(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
int r;
if (con)
return 0;
@ -1527,6 +1529,18 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
/* Might need get this flag from vbios. */
con->flags = RAS_DEFAULT_FLAGS;
if (adev->nbio.funcs->init_ras_controller_interrupt) {
r = adev->nbio.funcs->init_ras_controller_interrupt(adev);
if (r)
return r;
}
if (adev->nbio.funcs->init_ras_err_event_athub_interrupt) {
r = adev->nbio.funcs->init_ras_err_event_athub_interrupt(adev);
if (r)
return r;
}
if (amdgpu_ras_recovery_init(adev))
goto recovery_out;

125
drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
View File

@ -27,6 +27,7 @@
#include "nbio/nbio_7_4_offset.h"
#include "nbio/nbio_7_4_sh_mask.h"
#include "nbio/nbio_7_4_0_smn.h"
#include "ivsrcid/nbio/irqsrcs_nbif_7_4.h"
#include <uapi/linux/kfd_ioctl.h>
#define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c
@ -345,6 +346,128 @@ static void nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring(struct amdgpu_d
}
}
static int nbio_v7_4_set_ras_controller_irq_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
/* The ras_controller_irq enablement should be done in psp bl when it
* tries to enable ras feature. Driver only need to set the correct interrupt
* vector for bare-metal and sriov use case respectively
*/
uint32_t bif_intr_cntl;
bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL);
if (state == AMDGPU_IRQ_STATE_ENABLE) {
/* set interrupt vector select bit to 0 to select
* vetcor 1 for bare metal case */
bif_intr_cntl = REG_SET_FIELD(bif_intr_cntl,
BIF_INTR_CNTL,
RAS_INTR_VEC_SEL, 0);
WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL, bif_intr_cntl);
}
return 0;
}
static int nbio_v7_4_process_ras_controller_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
/* By design, the ih cookie for ras_controller_irq should be written
* to BIFring instead of general iv ring. However, due to known bif ring
* hw bug, it has to be disabled. There is no chance the process function
* will be involked. Just left it as a dummy one.
*/
return 0;
}
static int nbio_v7_4_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
/* The ras_controller_irq enablement should be done in psp bl when it
* tries to enable ras feature. Driver only need to set the correct interrupt
* vector for bare-metal and sriov use case respectively
*/
uint32_t bif_intr_cntl;
bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL);
if (state == AMDGPU_IRQ_STATE_ENABLE) {
/* set interrupt vector select bit to 0 to select
* vetcor 1 for bare metal case */
bif_intr_cntl = REG_SET_FIELD(bif_intr_cntl,
BIF_INTR_CNTL,
RAS_INTR_VEC_SEL, 0);
WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL, bif_intr_cntl);
}
return 0;
}
static int nbio_v7_4_process_err_event_athub_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
/* By design, the ih cookie for err_event_athub_irq should be written
* to BIFring instead of general iv ring. However, due to known bif ring
* hw bug, it has to be disabled. There is no chance the process function
* will be involked. Just left it as a dummy one.
*/
return 0;
}
static const struct amdgpu_irq_src_funcs nbio_v7_4_ras_controller_irq_funcs = {
.set = nbio_v7_4_set_ras_controller_irq_state,
.process = nbio_v7_4_process_ras_controller_irq,
};
static const struct amdgpu_irq_src_funcs nbio_v7_4_ras_err_event_athub_irq_funcs = {
.set = nbio_v7_4_set_ras_err_event_athub_irq_state,
.process = nbio_v7_4_process_err_event_athub_irq,
};
static int nbio_v7_4_init_ras_controller_interrupt (struct amdgpu_device *adev)
{
int r;
/* init the irq funcs */
adev->nbio.ras_controller_irq.funcs =
&nbio_v7_4_ras_controller_irq_funcs;
adev->nbio.ras_controller_irq.num_types = 1;
/* register ras controller interrupt */
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF,
NBIF_7_4__SRCID__RAS_CONTROLLER_INTERRUPT,
&adev->nbio.ras_controller_irq);
if (r)
return r;
return 0;
}
static int nbio_v7_4_init_ras_err_event_athub_interrupt (struct amdgpu_device *adev)
{
int r;
/* init the irq funcs */
adev->nbio.ras_err_event_athub_irq.funcs =
&nbio_v7_4_ras_err_event_athub_irq_funcs;
adev->nbio.ras_err_event_athub_irq.num_types = 1;
/* register ras err event athub interrupt */
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF,
NBIF_7_4__SRCID__ERREVENT_ATHUB_INTERRUPT,
&adev->nbio.ras_err_event_athub_irq);
if (r)
return r;
return 0;
}
const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
.get_hdp_flush_req_offset = nbio_v7_4_get_hdp_flush_req_offset,
.get_hdp_flush_done_offset = nbio_v7_4_get_hdp_flush_done_offset,
@ -368,4 +491,6 @@ const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
.remap_hdp_registers = nbio_v7_4_remap_hdp_registers,
.handle_ras_controller_intr_no_bifring = nbio_v7_4_handle_ras_controller_intr_no_bifring,
.handle_ras_err_event_athub_intr_no_bifring = nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring,
.init_ras_controller_interrupt = nbio_v7_4_init_ras_controller_interrupt,
.init_ras_err_event_athub_interrupt = nbio_v7_4_init_ras_err_event_athub_interrupt,
};