Make amdgpu the owner of all per-pipe state of the HQDs.
This change will allow us to split the queues between kfd and amdgpu
with a queue granularity instead of pipe granularity.
This patch fixes kfd allocating an HDP_EOP region for its 3 pipes which
goes unused.
v2: support for gfx9
Reviewed-by: Edward O'Callaghan <funfunc...@folklore1984.net>
Reviewed-by: Felix Kuehling <felix.kuehl...@amd.com>
Acked-by: Christian König <christian.koe...@amd.com>
Signed-off-by: Andres Rodriguez <andre...@gmail.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 13 +------
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c | 1 +
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 28 ++++++++++----
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 33 +++++++++++-----
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 24 ++++++++----
.../gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 45 ----------------------
7 files changed, 65 insertions(+), 83 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 3abd2dc..6b294d2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -880,43 +880,43 @@ struct amdgpu_rlc {
/* for firmware data */
u32 save_and_restore_offset;
u32 clear_state_descriptor_offset;
u32 avail_scratch_ram_locations;
u32 reg_restore_list_size;
u32 reg_list_format_start;
u32 reg_list_format_separate_start;
u32 starting_offsets_start;
u32 reg_list_format_size_bytes;
u32 reg_list_size_bytes;
u32 *register_list_format;
u32 *register_restore;
};
struct amdgpu_mec {
struct amdgpu_bo *hpd_eop_obj;
u64 hpd_eop_gpu_addr;
struct amdgpu_bo *mec_fw_obj;
u64 mec_fw_gpu_addr;
- u32 num_pipe;
u32 num_mec;
- u32 num_queue;
+ u32 num_pipe_per_mec;
+ u32 num_queue_per_pipe;
void *mqd_backup[AMDGPU_MAX_COMPUTE_RINGS + 1];
};
struct amdgpu_kiq {
u64 eop_gpu_addr;
struct amdgpu_bo *eop_obj;
struct amdgpu_ring ring;
struct amdgpu_irq_src irq;
};
/*
* GPU scratch registers structures, functions & helpers
*/
struct amdgpu_scratch {
unsigned num_reg;
uint32_t reg_base;
uint32_t free_mask;
};
/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
index 038b7ea..910f9d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
@@ -227,52 +227,41 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev
*kgd, unsigned int pasid,
* SW cleared it. So the protocol is to always wait & clear.
*/
uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
ATC_VMID0_PASID_MAPPING__VALID_MASK;
WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
cpu_relax();
WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
/* Mapping vmid to pasid also for IH block */
WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
return 0;
}
static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
uint32_t hpd_size, uint64_t hpd_gpu_addr)
{
- struct amdgpu_device *adev = get_amdgpu_device(kgd);
-
- uint32_t mec = (++pipe_id / CIK_PIPE_PER_MEC) + 1;
- uint32_t pipe = (pipe_id % CIK_PIPE_PER_MEC);
-
- lock_srbm(kgd, mec, pipe, 0, 0);
- WREG32(mmCP_HPD_EOP_BASE_ADDR, lower_32_bits(hpd_gpu_addr >> 8));
- WREG32(mmCP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(hpd_gpu_addr >> 8));
- WREG32(mmCP_HPD_EOP_VMID, 0);
- WREG32(mmCP_HPD_EOP_CONTROL, hpd_size);
- unlock_srbm(kgd);
-
+ /* amdgpu owns the per-pipe state */
return 0;
}
static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
uint32_t mec;
uint32_t pipe;
mec = (pipe_id / CIK_PIPE_PER_MEC) + 1;
pipe = (pipe_id % CIK_PIPE_PER_MEC);
lock_srbm(kgd, mec, pipe, 0, 0);
WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
unlock_srbm(kgd);
return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index 8af2975..6ba94e9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -189,40 +189,41 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev
*kgd, unsigned int pasid,
* So the protocol is to always wait & clear.
*/
uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
ATC_VMID0_PASID_MAPPING__VALID_MASK;
WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
cpu_relax();
WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
/* Mapping vmid to pasid also for IH block */
WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
return 0;
}
static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
uint32_t hpd_size, uint64_t hpd_gpu_addr)
{
+ /* amdgpu owns the per-pipe state */
return 0;
}
static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
uint32_t mec;
uint32_t pipe;
mec = (++pipe_id / VI_PIPE_PER_MEC) + 1;
pipe = (pipe_id % VI_PIPE_PER_MEC);
lock_srbm(kgd, mec, pipe, 0, 0);
WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK);
unlock_srbm(kgd);
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 75ad957..41bda98 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2810,84 +2810,98 @@ static void gfx_v7_0_cp_compute_fini(struct
amdgpu_device *adev)
static void gfx_v7_0_mec_fini(struct amdgpu_device *adev)
{
int r;
if (adev->gfx.mec.hpd_eop_obj) {
r = amdgpu_bo_reserve(adev->gfx.mec.hpd_eop_obj, false);
if (unlikely(r != 0))
dev_warn(adev->dev, "(%d) reserve HPD EOP bo failed\n",
r);
amdgpu_bo_unpin(adev->gfx.mec.hpd_eop_obj);
amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
amdgpu_bo_unref(&adev->gfx.mec.hpd_eop_obj);
adev->gfx.mec.hpd_eop_obj = NULL;
}
}
static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
{
int r;
u32 *hpd;
+ size_t mec_hpd_size;
/*
* KV: 2 MEC, 4 Pipes/MEC, 8 Queues/Pipe - 64 Queues total
* CI/KB: 1 MEC, 4 Pipes/MEC, 8 Queues/Pipe - 32 Queues total
* Nonetheless, we assign only 1 pipe because all other pipes will
* be handled by KFD
*/
- adev->gfx.mec.num_mec = 1;
- adev->gfx.mec.num_pipe = 1;
- adev->gfx.mec.num_queue = adev->gfx.mec.num_mec *
adev->gfx.mec.num_pipe * 8;
+ switch (adev->asic_type) {
+ case CHIP_KAVERI:
+ adev->gfx.mec.num_mec = 2;
+ break;
+ case CHIP_BONAIRE:
+ case CHIP_HAWAII:
+ case CHIP_KABINI:
+ case CHIP_MULLINS:
+ default:
+ adev->gfx.mec.num_mec = 1;
+ break;
+ }
+ adev->gfx.mec.num_pipe_per_mec = 4;
+ adev->gfx.mec.num_queue_per_pipe = 8;
+ mec_hpd_size = adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe_per_mec
+ * GFX7_MEC_HPD_SIZE * 2;
if (adev->gfx.mec.hpd_eop_obj == NULL) {
r = amdgpu_bo_create(adev,
- adev->gfx.mec.num_mec *
adev->gfx.mec.num_pipe * GFX7_MEC_HPD_SIZE * 2,
+ mec_hpd_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&adev->gfx.mec.hpd_eop_obj);
if (r) {
dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n",
r);
return r;
}
}
r = amdgpu_bo_reserve(adev->gfx.mec.hpd_eop_obj, false);
if (unlikely(r != 0)) {
gfx_v7_0_mec_fini(adev);
return r;
}
r = amdgpu_bo_pin(adev->gfx.mec.hpd_eop_obj, AMDGPU_GEM_DOMAIN_GTT,
&adev->gfx.mec.hpd_eop_gpu_addr);
if (r) {
dev_warn(adev->dev, "(%d) pin HDP EOP bo failed\n", r);
gfx_v7_0_mec_fini(adev);
return r;
}
r = amdgpu_bo_kmap(adev->gfx.mec.hpd_eop_obj, (void **)&hpd);
if (r) {
dev_warn(adev->dev, "(%d) map HDP EOP bo failed\n", r);
gfx_v7_0_mec_fini(adev);
return r;
}
/* clear memory. Not sure if this is required or not */
- memset(hpd, 0, adev->gfx.mec.num_mec * adev->gfx.mec.num_pipe *
GFX7_MEC_HPD_SIZE * 2);
+ memset(hpd, 0, mec_hpd_size);
amdgpu_bo_kunmap(adev->gfx.mec.hpd_eop_obj);
amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
return 0;
}
struct hqd_registers
{
u32 cp_mqd_base_addr;
u32 cp_mqd_base_addr_hi;
u32 cp_hqd_active;
u32 cp_hqd_vmid;
u32 cp_hqd_persistent_state;
u32 cp_hqd_pipe_priority;
u32 cp_hqd_queue_priority;
u32 cp_hqd_quantum;
u32 cp_hqd_pq_base;
u32 cp_hqd_pq_base_hi;
u32 cp_hqd_pq_rptr;
@@ -3191,43 +3205,43 @@ static int gfx_v7_0_compute_queue_init(struct
amdgpu_device *adev, int ring_id)
/**
* gfx_v7_0_cp_compute_resume - setup the compute queue registers
*
* @adev: amdgpu_device pointer
*
* Program the compute queues and test them to make sure they
* are working.
* Returns 0 for success, error for failure.
*/
static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
{
int r, i, j;
u32 tmp;
struct amdgpu_ring *ring;
/* fix up chicken bits */
tmp = RREG32(mmCP_CPF_DEBUG);
tmp |= (1 << 23);
WREG32(mmCP_CPF_DEBUG, tmp);
- /* init the pipes */
+ /* init all pipes (even the ones we don't own) */
for (i = 0; i < adev->gfx.mec.num_mec; i++)
- for (j = 0; j < adev->gfx.mec.num_pipe; j++)
+ for (j = 0; j < adev->gfx.mec.num_pipe_per_mec; j++)
gfx_v7_0_compute_pipe_init(adev, i, j);
/* init the queues */
for (i = 0; i < adev->gfx.num_compute_rings; i++) {
r = gfx_v7_0_compute_queue_init(adev, i);
if (r) {
gfx_v7_0_cp_compute_fini(adev);
return r;
}
}
gfx_v7_0_cp_compute_enable(adev, true);
for (i = 0; i < adev->gfx.num_compute_rings; i++) {
ring = &adev->gfx.compute_ring[i];
ring->ready = true;
r = amdgpu_ring_test_ring(ring);
if (r)
ring->ready = false;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 938b280..29c487e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1401,81 +1401,96 @@ static int gfx_v8_0_kiq_init_ring(struct amdgpu_device
*adev,
ring->eop_gpu_addr = kiq->eop_gpu_addr;
sprintf(ring->name, "kiq %d.%d.%d", ring->me, ring->pipe, ring->queue);
r = amdgpu_ring_init(adev, ring, 1024,
irq, AMDGPU_CP_KIQ_IRQ_DRIVER0);
if (r)
dev_warn(adev->dev, "(%d) failed to init kiq ring\n", r);
return r;
}
static void gfx_v8_0_kiq_free_ring(struct amdgpu_ring *ring,
struct amdgpu_irq_src *irq)
{
amdgpu_wb_free(ring->adev, ring->adev->virt.reg_val_offs);
amdgpu_ring_fini(ring);
}
static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
{
int r;
u32 *hpd;
+ size_t mec_hpd_size;
- /*
- * we assign only 1 pipe because all other pipes will
- * be handled by KFD
- */
- adev->gfx.mec.num_mec = 1;
- adev->gfx.mec.num_pipe = 1;
- adev->gfx.mec.num_queue = adev->gfx.mec.num_mec *
adev->gfx.mec.num_pipe * 8;
+ switch (adev->asic_type) {
+ case CHIP_FIJI:
+ case CHIP_TONGA:
+ case CHIP_POLARIS11:
+ case CHIP_POLARIS12:
+ case CHIP_POLARIS10:
+ case CHIP_CARRIZO:
+ adev->gfx.mec.num_mec = 2;
+ break;
+ case CHIP_TOPAZ:
+ case CHIP_STONEY:
+ default:
+ adev->gfx.mec.num_mec = 1;
+ break;
+ }
+
+ adev->gfx.mec.num_pipe_per_mec = 4;
+ adev->gfx.mec.num_queue_per_pipe = 8;
+
+ /* only 1 pipe of the first MEC is owned by amdgpu */
+ mec_hpd_size = 1 * 1 * adev->gfx.mec.num_queue_per_pipe *
GFX8_MEC_HPD_SIZE;
if (adev->gfx.mec.hpd_eop_obj == NULL) {
r = amdgpu_bo_create(adev,
- adev->gfx.mec.num_queue *
GFX8_MEC_HPD_SIZE,
+ mec_hpd_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&adev->gfx.mec.hpd_eop_obj);
if (r) {
dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n",
r);
return r;
}
}
r = amdgpu_bo_reserve(adev->gfx.mec.hpd_eop_obj, false);
if (unlikely(r != 0)) {
gfx_v8_0_mec_fini(adev);
return r;
}
r = amdgpu_bo_pin(adev->gfx.mec.hpd_eop_obj, AMDGPU_GEM_DOMAIN_GTT,
&adev->gfx.mec.hpd_eop_gpu_addr);
if (r) {
dev_warn(adev->dev, "(%d) pin HDP EOP bo failed\n", r);
gfx_v8_0_mec_fini(adev);
return r;
}
r = amdgpu_bo_kmap(adev->gfx.mec.hpd_eop_obj, (void **)&hpd);
if (r) {
dev_warn(adev->dev, "(%d) map HDP EOP bo failed\n", r);
gfx_v8_0_mec_fini(adev);
return r;
}
- memset(hpd, 0, adev->gfx.mec.num_queue * GFX8_MEC_HPD_SIZE);
+ memset(hpd, 0, mec_hpd_size);
amdgpu_bo_kunmap(adev->gfx.mec.hpd_eop_obj);
amdgpu_bo_unreserve(adev->gfx.mec.hpd_eop_obj);
return 0;
}
static void gfx_v8_0_kiq_fini(struct amdgpu_device *adev)
{
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
amdgpu_bo_free_kernel(&kiq->eop_obj, &kiq->eop_gpu_addr, NULL);
}
static int gfx_v8_0_kiq_init(struct amdgpu_device *adev)
{
int r;
u32 *hpd;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 0de7ff4..d100b15 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -465,54 +465,62 @@ static void gfx_v9_0_mec_fini(struct amdgpu_device *adev)
}
if (adev->gfx.mec.mec_fw_obj) {
r = amdgpu_bo_reserve(adev->gfx.mec.mec_fw_obj, false);
if (unlikely(r != 0))
dev_warn(adev->dev, "(%d) reserve mec firmware bo
failed\n", r);
amdgpu_bo_unpin(adev->gfx.mec.mec_fw_obj);
amdgpu_bo_unreserve(adev->gfx.mec.mec_fw_obj);
amdgpu_bo_unref(&adev->gfx.mec.mec_fw_obj);
adev->gfx.mec.mec_fw_obj = NULL;
}
}
static int gfx_v9_0_mec_init(struct amdgpu_device *adev)
{
int r;
u32 *hpd;
const __le32 *fw_data;
unsigned fw_size;
u32 *fw;
+ size_t mec_hpd_size;
const struct gfx_firmware_header_v1_0 *mec_hdr;
- /*
- * we assign only 1 pipe because all other pipes will
- * be handled by KFD
- */
- adev->gfx.mec.num_mec = 1;
- adev->gfx.mec.num_pipe = 1;
- adev->gfx.mec.num_queue = adev->gfx.mec.num_mec *
adev->gfx.mec.num_pipe * 8;
+ switch (adev->asic_type) {
+ case CHIP_VEGA10:
+ adev->gfx.mec.num_mec = 2;
+ break;
+ default:
+ adev->gfx.mec.num_mec = 1;
+ break;
+ }
+
+ adev->gfx.mec.num_pipe_per_mec = 4;
+ adev->gfx.mec.num_queue_per_pipe = 8;
+
+ /* only 1 pipe of the first MEC is owned by amdgpu */
+ mec_hpd_size = 1 * 1 * adev->gfx.mec.num_queue_per_pipe *
GFX9_MEC_HPD_SIZE;
if (adev->gfx.mec.hpd_eop_obj == NULL) {
r = amdgpu_bo_create(adev,
- adev->gfx.mec.num_queue *
GFX9_MEC_HPD_SIZE,
+ mec_hpd_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&adev->gfx.mec.hpd_eop_obj);
if (r) {
dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n",
r);
return r;
}
}
r = amdgpu_bo_reserve(adev->gfx.mec.hpd_eop_obj, false);
if (unlikely(r != 0)) {
gfx_v9_0_mec_fini(adev);
return r;
}
r = amdgpu_bo_pin(adev->gfx.mec.hpd_eop_obj, AMDGPU_GEM_DOMAIN_GTT,
&adev->gfx.mec.hpd_eop_gpu_addr);
if (r) {
dev_warn(adev->dev, "(%d) pin HDP EOP bo failed\n", r);
gfx_v9_0_mec_fini(adev);
return r;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index f49c551..c064dea 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -455,89 +455,44 @@ static int unregister_process_nocpsch(struct
device_queue_manager *dqm,
}
static int
set_pasid_vmid_mapping(struct device_queue_manager *dqm, unsigned int pasid,
unsigned int vmid)
{
uint32_t pasid_mapping;
pasid_mapping = (pasid == 0) ? 0 :
(uint32_t)pasid |
ATC_VMID_PASID_MAPPING_VALID;
return dqm->dev->kfd2kgd->set_pasid_vmid_mapping(
dqm->dev->kgd, pasid_mapping,
vmid);
}
int init_pipelines(struct device_queue_manager *dqm,
unsigned int pipes_num, unsigned int first_pipe)
{
- void *hpdptr;
- struct mqd_manager *mqd;
- unsigned int i, err, inx;
- uint64_t pipe_hpd_addr;
-
BUG_ON(!dqm || !dqm->dev);
pr_debug("kfd: In func %s\n", __func__);
- /*
- * Allocate memory for the HPDs. This is hardware-owned per-pipe data.
- * The driver never accesses this memory after zeroing it.
- * It doesn't even have to be saved/restored on suspend/resume
- * because it contains no data when there are no active queues.
- */
-
- err = kfd_gtt_sa_allocate(dqm->dev, CIK_HPD_EOP_BYTES * pipes_num,
- &dqm->pipeline_mem);
-
- if (err) {
- pr_err("kfd: error allocate vidmem num pipes: %d\n",
- pipes_num);
- return -ENOMEM;
- }
-
- hpdptr = dqm->pipeline_mem->cpu_ptr;
- dqm->pipelines_addr = dqm->pipeline_mem->gpu_addr;
-
- memset(hpdptr, 0, CIK_HPD_EOP_BYTES * pipes_num);
-
- mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
- if (mqd == NULL) {
- kfd_gtt_sa_free(dqm->dev, dqm->pipeline_mem);
- return -ENOMEM;
- }
-
- for (i = 0; i < pipes_num; i++) {
- inx = i + first_pipe;
- /*
- * HPD buffer on GTT is allocated by amdkfd, no need to waste
- * space in GTT for pipelines we don't initialize
- */
- pipe_hpd_addr = dqm->pipelines_addr + i * CIK_HPD_EOP_BYTES;
- pr_debug("kfd: pipeline address %llX\n", pipe_hpd_addr);
- /* = log2(bytes/4)-1 */
- dqm->dev->kfd2kgd->init_pipeline(dqm->dev->kgd, inx,
- CIK_HPD_EOP_BYTES_LOG2 - 3, pipe_hpd_addr);
- }
-
return 0;
}
static void init_interrupts(struct device_queue_manager *dqm)
{
unsigned int i;
BUG_ON(dqm == NULL);
for (i = 0 ; i < get_pipes_num(dqm) ; i++)
dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd,
i + get_first_pipe(dqm));
}
static int init_scheduler(struct device_queue_manager *dqm)
{
int retval;
BUG_ON(!dqm);
--
2.9.3
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