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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c545
1 files changed, 463 insertions, 82 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index f57cc72c43cf..8b118c53f351 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -33,6 +33,8 @@
#include "amdgpu_reset.h"
#include "amdgpu_xcp.h"
#include "amdgpu_xgmi.h"
+#include "amdgpu_mes.h"
+#include "nvd.h"
/* delay 0.1 second to enable gfx off feature */
#define GFX_OFF_DELAY_ENABLE msecs_to_jiffies(100)
@@ -74,14 +76,15 @@ bool amdgpu_gfx_is_mec_queue_enabled(struct amdgpu_device *adev,
adev->gfx.mec_bitmap[xcc_id].queue_bitmap);
}
-int amdgpu_gfx_me_queue_to_bit(struct amdgpu_device *adev,
- int me, int pipe, int queue)
+static int amdgpu_gfx_me_queue_to_bit(struct amdgpu_device *adev,
+ int me, int pipe, int queue)
{
+ int num_queue_per_pipe = 1; /* we only enable 1 KGQ per pipe */
int bit = 0;
bit += me * adev->gfx.me.num_pipe_per_me
- * adev->gfx.me.num_queue_per_pipe;
- bit += pipe * adev->gfx.me.num_queue_per_pipe;
+ * num_queue_per_pipe;
+ bit += pipe * num_queue_per_pipe;
bit += queue;
return bit;
@@ -147,7 +150,7 @@ static bool amdgpu_gfx_is_graphics_multipipe_capable(struct amdgpu_device *adev)
static bool amdgpu_gfx_is_compute_multipipe_capable(struct amdgpu_device *adev)
{
if (amdgpu_compute_multipipe != -1) {
- DRM_INFO("amdgpu: forcing compute pipe policy %d\n",
+ dev_info(adev->dev, "amdgpu: forcing compute pipe policy %d\n",
amdgpu_compute_multipipe);
return amdgpu_compute_multipipe == 1;
}
@@ -238,8 +241,8 @@ void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev)
{
int i, queue, pipe;
bool multipipe_policy = amdgpu_gfx_is_graphics_multipipe_capable(adev);
- int max_queues_per_me = adev->gfx.me.num_pipe_per_me *
- adev->gfx.me.num_queue_per_pipe;
+ int num_queue_per_pipe = 1; /* we only enable 1 KGQ per pipe */
+ int max_queues_per_me = adev->gfx.me.num_pipe_per_me * num_queue_per_pipe;
if (multipipe_policy) {
/* policy: amdgpu owns the first queue per pipe at this stage
@@ -247,9 +250,9 @@ void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev)
for (i = 0; i < max_queues_per_me; i++) {
pipe = i % adev->gfx.me.num_pipe_per_me;
queue = (i / adev->gfx.me.num_pipe_per_me) %
- adev->gfx.me.num_queue_per_pipe;
+ num_queue_per_pipe;
- set_bit(pipe * adev->gfx.me.num_queue_per_pipe + queue,
+ set_bit(pipe * num_queue_per_pipe + queue,
adev->gfx.me.queue_bitmap);
}
} else {
@@ -258,8 +261,9 @@ void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev)
}
/* update the number of active graphics rings */
- adev->gfx.num_gfx_rings =
- bitmap_weight(adev->gfx.me.queue_bitmap, AMDGPU_MAX_GFX_QUEUES);
+ if (adev->gfx.num_gfx_rings)
+ adev->gfx.num_gfx_rings =
+ bitmap_weight(adev->gfx.me.queue_bitmap, AMDGPU_MAX_GFX_QUEUES);
}
static int amdgpu_gfx_kiq_acquire(struct amdgpu_device *adev,
@@ -515,7 +519,7 @@ int amdgpu_gfx_disable_kcq(struct amdgpu_device *adev, int xcc_id)
if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
return -EINVAL;
- if (!kiq_ring->sched.ready || adev->job_hang || amdgpu_in_reset(adev))
+ if (!kiq_ring->sched.ready || amdgpu_in_reset(adev))
return 0;
spin_lock(&kiq->ring_lock);
@@ -567,7 +571,7 @@ int amdgpu_gfx_disable_kgq(struct amdgpu_device *adev, int xcc_id)
if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
return -EINVAL;
- if (!adev->gfx.kiq[0].ring.sched.ready || adev->job_hang)
+ if (!adev->gfx.kiq[0].ring.sched.ready || amdgpu_in_reset(adev))
return 0;
if (amdgpu_gfx_is_master_xcc(adev, xcc_id)) {
@@ -671,7 +675,7 @@ int amdgpu_gfx_enable_kcq(struct amdgpu_device *adev, int xcc_id)
* generation exposes more than 64 queues. If so, the
* definition of queue_mask needs updating */
if (WARN_ON(i > (sizeof(queue_mask)*8))) {
- DRM_ERROR("Invalid KCQ enabled: %d\n", i);
+ dev_err(adev->dev, "Invalid KCQ enabled: %d\n", i);
break;
}
@@ -680,15 +684,15 @@ int amdgpu_gfx_enable_kcq(struct amdgpu_device *adev, int xcc_id)
amdgpu_device_flush_hdp(adev, NULL);
- DRM_INFO("kiq ring mec %d pipe %d q %d\n", kiq_ring->me, kiq_ring->pipe,
- kiq_ring->queue);
+ dev_info(adev->dev, "kiq ring mec %d pipe %d q %d\n", kiq_ring->me,
+ kiq_ring->pipe, kiq_ring->queue);
spin_lock(&kiq->ring_lock);
r = amdgpu_ring_alloc(kiq_ring, kiq->pmf->map_queues_size *
adev->gfx.num_compute_rings +
kiq->pmf->set_resources_size);
if (r) {
- DRM_ERROR("Failed to lock KIQ (%d).\n", r);
+ dev_err(adev->dev, "Failed to lock KIQ (%d).\n", r);
spin_unlock(&kiq->ring_lock);
return r;
}
@@ -709,7 +713,7 @@ int amdgpu_gfx_enable_kcq(struct amdgpu_device *adev, int xcc_id)
r = amdgpu_ring_test_helper(kiq_ring);
spin_unlock(&kiq->ring_lock);
if (r)
- DRM_ERROR("KCQ enable failed\n");
+ dev_err(adev->dev, "KCQ enable failed\n");
return r;
}
@@ -731,7 +735,7 @@ int amdgpu_gfx_enable_kgq(struct amdgpu_device *adev, int xcc_id)
r = amdgpu_mes_map_legacy_queue(adev,
&adev->gfx.gfx_ring[j]);
if (r) {
- DRM_ERROR("failed to map gfx queue\n");
+ dev_err(adev->dev, "failed to map gfx queue\n");
return r;
}
}
@@ -745,7 +749,7 @@ int amdgpu_gfx_enable_kgq(struct amdgpu_device *adev, int xcc_id)
r = amdgpu_ring_alloc(kiq_ring, kiq->pmf->map_queues_size *
adev->gfx.num_gfx_rings);
if (r) {
- DRM_ERROR("Failed to lock KIQ (%d).\n", r);
+ dev_err(adev->dev, "Failed to lock KIQ (%d).\n", r);
spin_unlock(&kiq->ring_lock);
return r;
}
@@ -766,23 +770,13 @@ int amdgpu_gfx_enable_kgq(struct amdgpu_device *adev, int xcc_id)
r = amdgpu_ring_test_helper(kiq_ring);
spin_unlock(&kiq->ring_lock);
if (r)
- DRM_ERROR("KGQ enable failed\n");
+ dev_err(adev->dev, "KGQ enable failed\n");
return r;
}
-/* amdgpu_gfx_off_ctrl - Handle gfx off feature enable/disable
- *
- * @adev: amdgpu_device pointer
- * @bool enable true: enable gfx off feature, false: disable gfx off feature
- *
- * 1. gfx off feature will be enabled by gfx ip after gfx cg gp enabled.
- * 2. other client can send request to disable gfx off feature, the request should be honored.
- * 3. other client can cancel their request of disable gfx off feature
- * 4. other client should not send request to enable gfx off feature before disable gfx off feature.
- */
-
-void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
+static void amdgpu_gfx_do_off_ctrl(struct amdgpu_device *adev, bool enable,
+ bool no_delay)
{
unsigned long delay = GFX_OFF_DELAY_ENABLE;
@@ -804,9 +798,9 @@ void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
if (adev->gfx.gfx_off_req_count == 0 &&
!adev->gfx.gfx_off_state) {
/* If going to s2idle, no need to wait */
- if (adev->in_s0ix) {
+ if (no_delay) {
if (!amdgpu_dpm_set_powergating_by_smu(adev,
- AMD_IP_BLOCK_TYPE_GFX, true))
+ AMD_IP_BLOCK_TYPE_GFX, true, 0))
adev->gfx.gfx_off_state = true;
} else {
schedule_delayed_work(&adev->gfx.gfx_off_delay_work,
@@ -818,7 +812,7 @@ void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
cancel_delayed_work_sync(&adev->gfx.gfx_off_delay_work);
if (adev->gfx.gfx_off_state &&
- !amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, false)) {
+ !amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, false, 0)) {
adev->gfx.gfx_off_state = false;
if (adev->gfx.funcs->init_spm_golden) {
@@ -836,6 +830,43 @@ unlock:
mutex_unlock(&adev->gfx.gfx_off_mutex);
}
+/* amdgpu_gfx_off_ctrl - Handle gfx off feature enable/disable
+ *
+ * @adev: amdgpu_device pointer
+ * @bool enable true: enable gfx off feature, false: disable gfx off feature
+ *
+ * 1. gfx off feature will be enabled by gfx ip after gfx cg pg enabled.
+ * 2. other client can send request to disable gfx off feature, the request should be honored.
+ * 3. other client can cancel their request of disable gfx off feature
+ * 4. other client should not send request to enable gfx off feature before disable gfx off feature.
+ *
+ * gfx off allow will be delayed by GFX_OFF_DELAY_ENABLE ms.
+ */
+void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
+{
+ /* If going to s2idle, no need to wait */
+ bool no_delay = adev->in_s0ix ? true : false;
+
+ amdgpu_gfx_do_off_ctrl(adev, enable, no_delay);
+}
+
+/* amdgpu_gfx_off_ctrl_immediate - Handle gfx off feature enable/disable
+ *
+ * @adev: amdgpu_device pointer
+ * @bool enable true: enable gfx off feature, false: disable gfx off feature
+ *
+ * 1. gfx off feature will be enabled by gfx ip after gfx cg pg enabled.
+ * 2. other client can send request to disable gfx off feature, the request should be honored.
+ * 3. other client can cancel their request of disable gfx off feature
+ * 4. other client should not send request to enable gfx off feature before disable gfx off feature.
+ *
+ * gfx off allow will be issued immediately.
+ */
+void amdgpu_gfx_off_ctrl_immediate(struct amdgpu_device *adev, bool enable)
+{
+ amdgpu_gfx_do_off_ctrl(adev, enable, true);
+}
+
int amdgpu_set_gfx_off_residency(struct amdgpu_device *adev, bool value)
{
int r = 0;
@@ -1000,7 +1031,7 @@ int amdgpu_gfx_cp_ecc_error_irq(struct amdgpu_device *adev,
ih_data.head = *ras_if;
- DRM_ERROR("CP ECC ERROR IRQ\n");
+ dev_err(adev->dev, "CP ECC ERROR IRQ\n");
amdgpu_ras_interrupt_dispatch(adev, &ih_data);
return 0;
}
@@ -1072,6 +1103,9 @@ uint32_t amdgpu_kiq_rreg(struct amdgpu_device *adev, uint32_t reg, uint32_t xcc_
might_sleep();
while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
+ if (amdgpu_in_reset(adev))
+ goto failed_kiq_read;
+
msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
}
@@ -1141,6 +1175,8 @@ void amdgpu_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v, uint3
might_sleep();
while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
+ if (amdgpu_in_reset(adev))
+ goto failed_kiq_write;
msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
@@ -1159,6 +1195,75 @@ failed_kiq_write:
dev_err(adev->dev, "failed to write reg:%x\n", reg);
}
+int amdgpu_kiq_hdp_flush(struct amdgpu_device *adev)
+{
+ signed long r, cnt = 0;
+ unsigned long flags;
+ uint32_t seq;
+ struct amdgpu_kiq *kiq = &adev->gfx.kiq[0];
+ struct amdgpu_ring *ring = &kiq->ring;
+
+ if (amdgpu_device_skip_hw_access(adev))
+ return 0;
+
+ if (adev->enable_mes_kiq && adev->mes.ring[0].sched.ready)
+ return amdgpu_mes_hdp_flush(adev);
+
+ if (!ring->funcs->emit_hdp_flush) {
+ return -EOPNOTSUPP;
+ }
+
+ spin_lock_irqsave(&kiq->ring_lock, flags);
+ r = amdgpu_ring_alloc(ring, 32);
+ if (r)
+ goto failed_unlock;
+
+ amdgpu_ring_emit_hdp_flush(ring);
+ r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
+ if (r)
+ goto failed_undo;
+
+ amdgpu_ring_commit(ring);
+ spin_unlock_irqrestore(&kiq->ring_lock, flags);
+
+ r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
+
+ /* don't wait anymore for gpu reset case because this way may
+ * block gpu_recover() routine forever, e.g. this virt_kiq_rreg
+ * is triggered in TTM and ttm_bo_lock_delayed_workqueue() will
+ * never return if we keep waiting in virt_kiq_rreg, which cause
+ * gpu_recover() hang there.
+ *
+ * also don't wait anymore for IRQ context
+ * */
+ if (r < 1 && (amdgpu_in_reset(adev) || in_interrupt()))
+ goto failed_kiq_hdp_flush;
+
+ might_sleep();
+ while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
+ if (amdgpu_in_reset(adev))
+ goto failed_kiq_hdp_flush;
+
+ msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
+ r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
+ }
+
+ if (cnt > MAX_KIQ_REG_TRY) {
+ dev_err(adev->dev, "failed to flush HDP via KIQ timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+
+failed_undo:
+ amdgpu_ring_undo(ring);
+failed_unlock:
+ spin_unlock_irqrestore(&kiq->ring_lock, flags);
+failed_kiq_hdp_flush:
+ dev_err(adev->dev, "failed to flush HDP via KIQ\n");
+ return r < 0 ? r : -EIO;
+}
+
int amdgpu_gfx_get_num_kcq(struct amdgpu_device *adev)
{
if (amdgpu_num_kcq == -1) {
@@ -1324,6 +1429,10 @@ static ssize_t amdgpu_gfx_get_current_compute_partition(struct device *dev,
struct amdgpu_device *adev = drm_to_adev(ddev);
int mode;
+ /* Only minimal precaution taken to reject requests while in reset.*/
+ if (amdgpu_in_reset(adev))
+ return -EPERM;
+
mode = amdgpu_xcp_query_partition_mode(adev->xcp_mgr,
AMDGPU_XCP_FL_NONE);
@@ -1367,8 +1476,14 @@ static ssize_t amdgpu_gfx_set_compute_partition(struct device *dev,
return -EINVAL;
}
+ /* Don't allow a switch while under reset */
+ if (!down_read_trylock(&adev->reset_domain->sem))
+ return -EPERM;
+
ret = amdgpu_xcp_switch_partition_mode(adev->xcp_mgr, mode);
+ up_read(&adev->reset_domain->sem);
+
if (ret)
return ret;
@@ -1411,9 +1526,11 @@ static int amdgpu_gfx_run_cleaner_shader_job(struct amdgpu_ring *ring)
struct amdgpu_device *adev = ring->adev;
struct drm_gpu_scheduler *sched = &ring->sched;
struct drm_sched_entity entity;
+ static atomic_t counter;
struct dma_fence *f;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
+ void *owner;
int i, r;
/* Initialize the scheduler entity */
@@ -1424,13 +1541,22 @@ static int amdgpu_gfx_run_cleaner_shader_job(struct amdgpu_ring *ring)
goto err;
}
- r = amdgpu_job_alloc_with_ib(ring->adev, &entity, NULL,
- 64, 0,
- &job);
+ /*
+ * Use some unique dummy value as the owner to make sure we execute
+ * the cleaner shader on each submission. The value just need to change
+ * for each submission and is otherwise meaningless.
+ */
+ owner = (void *)(unsigned long)atomic_inc_return(&counter);
+
+ r = amdgpu_job_alloc_with_ib(ring->adev, &entity, owner,
+ 64, 0, &job,
+ AMDGPU_KERNEL_JOB_ID_CLEANER_SHADER);
if (r)
goto err;
job->enforce_isolation = true;
+ /* always run the cleaner shader */
+ job->run_cleaner_shader = true;
ib = &job->ibs[0];
for (i = 0; i <= ring->funcs->align_mask; ++i)
@@ -1484,6 +1610,24 @@ static int amdgpu_gfx_run_cleaner_shader(struct amdgpu_device *adev, int xcp_id)
return 0;
}
+/**
+ * amdgpu_gfx_set_run_cleaner_shader - Execute the AMDGPU GFX Cleaner Shader
+ * @dev: The device structure
+ * @attr: The device attribute structure
+ * @buf: The buffer containing the input data
+ * @count: The size of the input data
+ *
+ * Provides the sysfs interface to manually run a cleaner shader, which is
+ * used to clear the GPU state between different tasks. Writing a value to the
+ * 'run_cleaner_shader' sysfs file triggers the cleaner shader execution.
+ * The value written corresponds to the partition index on multi-partition
+ * devices. On single-partition devices, the value should be '0'.
+ *
+ * The cleaner shader clears the Local Data Store (LDS) and General Purpose
+ * Registers (GPRs) to ensure data isolation between GPU workloads.
+ *
+ * Return: The number of bytes written to the sysfs file.
+ */
static ssize_t amdgpu_gfx_set_run_cleaner_shader(struct device *dev,
struct device_attribute *attr,
const char *buf,
@@ -1499,6 +1643,9 @@ static ssize_t amdgpu_gfx_set_run_cleaner_shader(struct device *dev,
if (adev->in_suspend && !adev->in_runpm)
return -EPERM;
+ if (adev->gfx.disable_kq)
+ return -EPERM;
+
ret = kstrtol(buf, 0, &value);
if (ret)
@@ -1523,7 +1670,6 @@ static ssize_t amdgpu_gfx_set_run_cleaner_shader(struct device *dev,
ret = amdgpu_gfx_run_cleaner_shader(adev, value);
- pm_runtime_mark_last_busy(ddev->dev);
pm_runtime_put_autosuspend(ddev->dev);
if (ret)
@@ -1532,6 +1678,20 @@ static ssize_t amdgpu_gfx_set_run_cleaner_shader(struct device *dev,
return count;
}
+/**
+ * amdgpu_gfx_get_enforce_isolation - Query AMDGPU GFX Enforce Isolation Settings
+ * @dev: The device structure
+ * @attr: The device attribute structure
+ * @buf: The buffer to store the output data
+ *
+ * Provides the sysfs read interface to get the current settings of the 'enforce_isolation'
+ * feature for each GPU partition. Reading from the 'enforce_isolation'
+ * sysfs file returns the isolation settings for all partitions, where '0'
+ * indicates disabled, '1' indicates enabled, and '2' indicates enabled in legacy mode,
+ * and '3' indicates enabled without cleaner shader.
+ *
+ * Return: The number of bytes read from the sysfs file.
+ */
static ssize_t amdgpu_gfx_get_enforce_isolation(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -1555,6 +1715,23 @@ static ssize_t amdgpu_gfx_get_enforce_isolation(struct device *dev,
return size;
}
+/**
+ * amdgpu_gfx_set_enforce_isolation - Control AMDGPU GFX Enforce Isolation
+ * @dev: The device structure
+ * @attr: The device attribute structure
+ * @buf: The buffer containing the input data
+ * @count: The size of the input data
+ *
+ * This function allows control over the 'enforce_isolation' feature, which
+ * serializes access to the graphics engine. Writing '0' to disable, '1' to
+ * enable isolation with cleaner shader, '2' to enable legacy isolation without
+ * cleaner shader, or '3' to enable process isolation without submitting the
+ * cleaner shader to the 'enforce_isolation' sysfs file sets the isolation mode
+ * for each partition. The input should specify the setting for all
+ * partitions.
+ *
+ * Return: The number of bytes written to the sysfs file.
+ */
static ssize_t amdgpu_gfx_set_enforce_isolation(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -1588,27 +1765,38 @@ static ssize_t amdgpu_gfx_set_enforce_isolation(struct device *dev,
return -EINVAL;
for (i = 0; i < num_partitions; i++) {
- if (partition_values[i] != 0 && partition_values[i] != 1)
+ if (partition_values[i] != 0 &&
+ partition_values[i] != 1 &&
+ partition_values[i] != 2 &&
+ partition_values[i] != 3)
return -EINVAL;
}
mutex_lock(&adev->enforce_isolation_mutex);
-
for (i = 0; i < num_partitions; i++) {
- if (adev->enforce_isolation[i] && !partition_values[i]) {
- /* Going from enabled to disabled */
- amdgpu_vmid_free_reserved(adev, AMDGPU_GFXHUB(i));
- amdgpu_mes_set_enforce_isolation(adev, i, false);
- } else if (!adev->enforce_isolation[i] && partition_values[i]) {
- /* Going from disabled to enabled */
- amdgpu_vmid_alloc_reserved(adev, AMDGPU_GFXHUB(i));
- amdgpu_mes_set_enforce_isolation(adev, i, true);
+ switch (partition_values[i]) {
+ case 0:
+ default:
+ adev->enforce_isolation[i] = AMDGPU_ENFORCE_ISOLATION_DISABLE;
+ break;
+ case 1:
+ adev->enforce_isolation[i] =
+ AMDGPU_ENFORCE_ISOLATION_ENABLE;
+ break;
+ case 2:
+ adev->enforce_isolation[i] =
+ AMDGPU_ENFORCE_ISOLATION_ENABLE_LEGACY;
+ break;
+ case 3:
+ adev->enforce_isolation[i] =
+ AMDGPU_ENFORCE_ISOLATION_NO_CLEANER_SHADER;
+ break;
}
- adev->enforce_isolation[i] = partition_values[i];
}
-
mutex_unlock(&adev->enforce_isolation_mutex);
+ amdgpu_mes_update_enforce_isolation(adev);
+
return count;
}
@@ -1778,9 +1966,11 @@ int amdgpu_gfx_sysfs_init(struct amdgpu_device *adev)
void amdgpu_gfx_sysfs_fini(struct amdgpu_device *adev)
{
- amdgpu_gfx_sysfs_xcp_fini(adev);
- amdgpu_gfx_sysfs_isolation_shader_fini(adev);
- amdgpu_gfx_sysfs_reset_mask_fini(adev);
+ if (adev->dev->kobj.sd) {
+ amdgpu_gfx_sysfs_xcp_fini(adev);
+ amdgpu_gfx_sysfs_isolation_shader_fini(adev);
+ amdgpu_gfx_sysfs_reset_mask_fini(adev);
+ }
}
int amdgpu_gfx_cleaner_shader_sw_init(struct amdgpu_device *adev,
@@ -1851,39 +2041,41 @@ void amdgpu_gfx_cleaner_shader_init(struct amdgpu_device *adev,
static void amdgpu_gfx_kfd_sch_ctrl(struct amdgpu_device *adev, u32 idx,
bool enable)
{
- mutex_lock(&adev->gfx.kfd_sch_mutex);
+ mutex_lock(&adev->gfx.userq_sch_mutex);
if (enable) {
/* If the count is already 0, it means there's an imbalance bug somewhere.
* Note that the bug may be in a different caller than the one which triggers the
* WARN_ON_ONCE.
*/
- if (WARN_ON_ONCE(adev->gfx.kfd_sch_req_count[idx] == 0)) {
+ if (WARN_ON_ONCE(adev->gfx.userq_sch_req_count[idx] == 0)) {
dev_err(adev->dev, "Attempted to enable KFD scheduler when reference count is already zero\n");
goto unlock;
}
- adev->gfx.kfd_sch_req_count[idx]--;
+ adev->gfx.userq_sch_req_count[idx]--;
- if (adev->gfx.kfd_sch_req_count[idx] == 0 &&
- adev->gfx.kfd_sch_inactive[idx]) {
+ if (adev->gfx.userq_sch_req_count[idx] == 0 &&
+ adev->gfx.userq_sch_inactive[idx]) {
schedule_delayed_work(&adev->gfx.enforce_isolation[idx].work,
msecs_to_jiffies(adev->gfx.enforce_isolation_time[idx]));
}
} else {
- if (adev->gfx.kfd_sch_req_count[idx] == 0) {
+ if (adev->gfx.userq_sch_req_count[idx] == 0) {
cancel_delayed_work_sync(&adev->gfx.enforce_isolation[idx].work);
- if (!adev->gfx.kfd_sch_inactive[idx]) {
- amdgpu_amdkfd_stop_sched(adev, idx);
- adev->gfx.kfd_sch_inactive[idx] = true;
+ if (!adev->gfx.userq_sch_inactive[idx]) {
+ amdgpu_userq_stop_sched_for_enforce_isolation(adev, idx);
+ if (adev->kfd.init_complete)
+ amdgpu_amdkfd_stop_sched(adev, idx);
+ adev->gfx.userq_sch_inactive[idx] = true;
}
}
- adev->gfx.kfd_sch_req_count[idx]++;
+ adev->gfx.userq_sch_req_count[idx]++;
}
unlock:
- mutex_unlock(&adev->gfx.kfd_sch_mutex);
+ mutex_unlock(&adev->gfx.userq_sch_mutex);
}
/**
@@ -1928,16 +2120,28 @@ void amdgpu_gfx_enforce_isolation_handler(struct work_struct *work)
msecs_to_jiffies(1));
} else {
/* Tell KFD to resume the runqueue */
- if (adev->kfd.init_complete) {
- WARN_ON_ONCE(!adev->gfx.kfd_sch_inactive[idx]);
- WARN_ON_ONCE(adev->gfx.kfd_sch_req_count[idx]);
- amdgpu_amdkfd_start_sched(adev, idx);
- adev->gfx.kfd_sch_inactive[idx] = false;
- }
+ WARN_ON_ONCE(!adev->gfx.userq_sch_inactive[idx]);
+ WARN_ON_ONCE(adev->gfx.userq_sch_req_count[idx]);
+
+ amdgpu_userq_start_sched_for_enforce_isolation(adev, idx);
+ if (adev->kfd.init_complete)
+ amdgpu_amdkfd_start_sched(adev, idx);
+ adev->gfx.userq_sch_inactive[idx] = false;
}
mutex_unlock(&adev->enforce_isolation_mutex);
}
+/**
+ * amdgpu_gfx_enforce_isolation_wait_for_kfd - Manage KFD wait period for process isolation
+ * @adev: amdgpu_device pointer
+ * @idx: Index of the GPU partition
+ *
+ * When kernel submissions come in, the jobs are given a time slice and once
+ * that time slice is up, if there are KFD user queues active, kernel
+ * submissions are blocked until KFD has had its time slice. Once the KFD time
+ * slice is up, KFD user queues are preempted and kernel submissions are
+ * unblocked and allowed to run again.
+ */
static void
amdgpu_gfx_enforce_isolation_wait_for_kfd(struct amdgpu_device *adev,
u32 idx)
@@ -1946,7 +2150,7 @@ amdgpu_gfx_enforce_isolation_wait_for_kfd(struct amdgpu_device *adev,
bool wait = false;
mutex_lock(&adev->enforce_isolation_mutex);
- if (adev->enforce_isolation[idx]) {
+ if (adev->enforce_isolation[idx] == AMDGPU_ENFORCE_ISOLATION_ENABLE) {
/* set the initial values if nothing is set */
if (!adev->gfx.enforce_isolation_jiffies[idx]) {
adev->gfx.enforce_isolation_jiffies[idx] = jiffies;
@@ -1983,10 +2187,20 @@ amdgpu_gfx_enforce_isolation_wait_for_kfd(struct amdgpu_device *adev,
msleep(GFX_SLICE_PERIOD_MS);
}
+/**
+ * amdgpu_gfx_enforce_isolation_ring_begin_use - Begin use of a ring with enforced isolation
+ * @ring: Pointer to the amdgpu_ring structure
+ *
+ * Ring begin_use helper implementation for gfx which serializes access to the
+ * gfx IP between kernel submission IOCTLs and KFD user queues when isolation
+ * enforcement is enabled. The kernel submission IOCTLs and KFD user queues
+ * each get a time slice when both are active.
+ */
void amdgpu_gfx_enforce_isolation_ring_begin_use(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
u32 idx;
+ bool sched_work = false;
if (!adev->gfx.enable_cleaner_shader)
return;
@@ -2003,17 +2217,30 @@ void amdgpu_gfx_enforce_isolation_ring_begin_use(struct amdgpu_ring *ring)
amdgpu_gfx_enforce_isolation_wait_for_kfd(adev, idx);
mutex_lock(&adev->enforce_isolation_mutex);
- if (adev->enforce_isolation[idx]) {
+ if (adev->enforce_isolation[idx] == AMDGPU_ENFORCE_ISOLATION_ENABLE) {
if (adev->kfd.init_complete)
- amdgpu_gfx_kfd_sch_ctrl(adev, idx, false);
+ sched_work = true;
}
mutex_unlock(&adev->enforce_isolation_mutex);
+
+ if (sched_work)
+ amdgpu_gfx_kfd_sch_ctrl(adev, idx, false);
}
+/**
+ * amdgpu_gfx_enforce_isolation_ring_end_use - End use of a ring with enforced isolation
+ * @ring: Pointer to the amdgpu_ring structure
+ *
+ * Ring end_use helper implementation for gfx which serializes access to the
+ * gfx IP between kernel submission IOCTLs and KFD user queues when isolation
+ * enforcement is enabled. The kernel submission IOCTLs and KFD user queues
+ * each get a time slice when both are active.
+ */
void amdgpu_gfx_enforce_isolation_ring_end_use(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
u32 idx;
+ bool sched_work = false;
if (!adev->gfx.enable_cleaner_shader)
return;
@@ -2027,11 +2254,164 @@ void amdgpu_gfx_enforce_isolation_ring_end_use(struct amdgpu_ring *ring)
return;
mutex_lock(&adev->enforce_isolation_mutex);
- if (adev->enforce_isolation[idx]) {
+ if (adev->enforce_isolation[idx] == AMDGPU_ENFORCE_ISOLATION_ENABLE) {
if (adev->kfd.init_complete)
- amdgpu_gfx_kfd_sch_ctrl(adev, idx, true);
+ sched_work = true;
}
mutex_unlock(&adev->enforce_isolation_mutex);
+
+ if (sched_work)
+ amdgpu_gfx_kfd_sch_ctrl(adev, idx, true);
+}
+
+void amdgpu_gfx_profile_idle_work_handler(struct work_struct *work)
+{
+ struct amdgpu_device *adev =
+ container_of(work, struct amdgpu_device, gfx.idle_work.work);
+ enum PP_SMC_POWER_PROFILE profile;
+ u32 i, fences = 0;
+ int r;
+
+ if (adev->gfx.num_gfx_rings)
+ profile = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
+ else
+ profile = PP_SMC_POWER_PROFILE_COMPUTE;
+
+ for (i = 0; i < AMDGPU_MAX_GFX_RINGS; ++i)
+ fences += amdgpu_fence_count_emitted(&adev->gfx.gfx_ring[i]);
+ for (i = 0; i < (AMDGPU_MAX_COMPUTE_RINGS * AMDGPU_MAX_GC_INSTANCES); ++i)
+ fences += amdgpu_fence_count_emitted(&adev->gfx.compute_ring[i]);
+ if (!fences && !atomic_read(&adev->gfx.total_submission_cnt)) {
+ mutex_lock(&adev->gfx.workload_profile_mutex);
+ if (adev->gfx.workload_profile_active) {
+ r = amdgpu_dpm_switch_power_profile(adev, profile, false);
+ if (r)
+ dev_warn(adev->dev, "(%d) failed to disable %s power profile mode\n", r,
+ profile == PP_SMC_POWER_PROFILE_FULLSCREEN3D ?
+ "fullscreen 3D" : "compute");
+ adev->gfx.workload_profile_active = false;
+ }
+ mutex_unlock(&adev->gfx.workload_profile_mutex);
+ } else {
+ schedule_delayed_work(&adev->gfx.idle_work, GFX_PROFILE_IDLE_TIMEOUT);
+ }
+}
+
+void amdgpu_gfx_profile_ring_begin_use(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ enum PP_SMC_POWER_PROFILE profile;
+ int r;
+
+ if (amdgpu_dpm_is_overdrive_enabled(adev))
+ return;
+
+ if (adev->gfx.num_gfx_rings)
+ profile = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
+ else
+ profile = PP_SMC_POWER_PROFILE_COMPUTE;
+
+ atomic_inc(&adev->gfx.total_submission_cnt);
+
+ cancel_delayed_work_sync(&adev->gfx.idle_work);
+
+ /* We can safely return early here because we've cancelled the
+ * the delayed work so there is no one else to set it to false
+ * and we don't care if someone else sets it to true.
+ */
+ if (adev->gfx.workload_profile_active)
+ return;
+
+ mutex_lock(&adev->gfx.workload_profile_mutex);
+ if (!adev->gfx.workload_profile_active) {
+ r = amdgpu_dpm_switch_power_profile(adev, profile, true);
+ if (r)
+ dev_warn(adev->dev, "(%d) failed to disable %s power profile mode\n", r,
+ profile == PP_SMC_POWER_PROFILE_FULLSCREEN3D ?
+ "fullscreen 3D" : "compute");
+ adev->gfx.workload_profile_active = true;
+ }
+ mutex_unlock(&adev->gfx.workload_profile_mutex);
+}
+
+void amdgpu_gfx_profile_ring_end_use(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (amdgpu_dpm_is_overdrive_enabled(adev))
+ return;
+
+ atomic_dec(&ring->adev->gfx.total_submission_cnt);
+
+ schedule_delayed_work(&ring->adev->gfx.idle_work, GFX_PROFILE_IDLE_TIMEOUT);
+}
+
+/**
+ * amdgpu_gfx_csb_preamble_start - Set CSB preamble start
+ *
+ * @buffer: This is an output variable that gets the PACKET3 preamble setup.
+ *
+ * Return:
+ * return the latest index.
+ */
+u32 amdgpu_gfx_csb_preamble_start(u32 *buffer)
+{
+ u32 count = 0;
+
+ buffer[count++] = cpu_to_le32(PACKET3(PACKET3_PREAMBLE_CNTL, 0));
+ buffer[count++] = cpu_to_le32(PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
+
+ buffer[count++] = cpu_to_le32(PACKET3(PACKET3_CONTEXT_CONTROL, 1));
+ buffer[count++] = cpu_to_le32(0x80000000);
+ buffer[count++] = cpu_to_le32(0x80000000);
+
+ return count;
+}
+
+/**
+ * amdgpu_gfx_csb_data_parser - Parser CS data
+ *
+ * @adev: amdgpu_device pointer used to get the CS data and other gfx info.
+ * @buffer: This is an output variable that gets the PACKET3 preamble end.
+ * @count: Index to start set the preemble end.
+ *
+ * Return:
+ * return the latest index.
+ */
+u32 amdgpu_gfx_csb_data_parser(struct amdgpu_device *adev, u32 *buffer, u32 count)
+{
+ const struct cs_section_def *sect = NULL;
+ const struct cs_extent_def *ext = NULL;
+ u32 i;
+
+ for (sect = adev->gfx.rlc.cs_data; sect->section != NULL; ++sect) {
+ for (ext = sect->section; ext->extent != NULL; ++ext) {
+ if (sect->id == SECT_CONTEXT) {
+ buffer[count++] = cpu_to_le32(PACKET3(PACKET3_SET_CONTEXT_REG, ext->reg_count));
+ buffer[count++] = cpu_to_le32(ext->reg_index - PACKET3_SET_CONTEXT_REG_START);
+
+ for (i = 0; i < ext->reg_count; i++)
+ buffer[count++] = cpu_to_le32(ext->extent[i]);
+ }
+ }
+ }
+
+ return count;
+}
+
+/**
+ * amdgpu_gfx_csb_preamble_end - Set CSB preamble end
+ *
+ * @buffer: This is an output variable that gets the PACKET3 preamble end.
+ * @count: Index to start set the preemble end.
+ */
+void amdgpu_gfx_csb_preamble_end(u32 *buffer, u32 count)
+{
+ buffer[count++] = cpu_to_le32(PACKET3(PACKET3_PREAMBLE_CNTL, 0));
+ buffer[count++] = cpu_to_le32(PACKET3_PREAMBLE_END_CLEAR_STATE);
+
+ buffer[count++] = cpu_to_le32(PACKET3(PACKET3_CLEAR_STATE, 0));
+ buffer[count++] = cpu_to_le32(0);
}
/*
@@ -2048,7 +2428,7 @@ static int amdgpu_debugfs_gfx_sched_mask_set(void *data, u64 val)
if (!adev)
return -ENODEV;
- mask = (1 << adev->gfx.num_gfx_rings) - 1;
+ mask = (1ULL << adev->gfx.num_gfx_rings) - 1;
if ((val & mask) == 0)
return -EINVAL;
@@ -2076,7 +2456,7 @@ static int amdgpu_debugfs_gfx_sched_mask_get(void *data, u64 *val)
for (i = 0; i < adev->gfx.num_gfx_rings; ++i) {
ring = &adev->gfx.gfx_ring[i];
if (ring->sched.ready)
- mask |= 1 << i;
+ mask |= 1ULL << i;
}
*val = mask;
@@ -2118,7 +2498,7 @@ static int amdgpu_debugfs_compute_sched_mask_set(void *data, u64 val)
if (!adev)
return -ENODEV;
- mask = (1 << adev->gfx.num_compute_rings) - 1;
+ mask = (1ULL << adev->gfx.num_compute_rings) - 1;
if ((val & mask) == 0)
return -EINVAL;
@@ -2147,7 +2527,7 @@ static int amdgpu_debugfs_compute_sched_mask_get(void *data, u64 *val)
for (i = 0; i < adev->gfx.num_compute_rings; ++i) {
ring = &adev->gfx.compute_ring[i];
if (ring->sched.ready)
- mask |= 1 << i;
+ mask |= 1ULL << i;
}
*val = mask;
@@ -2174,3 +2554,4 @@ void amdgpu_debugfs_compute_sched_mask_init(struct amdgpu_device *adev)
&amdgpu_debugfs_compute_sched_mask_fops);
#endif
}
+