Add amdgpu_amdkfd interface to get num_gws and add num_gws
to /sys/class/kfd/kfd/topology/nodes/x/properties. Only report
num_gws if MEC FW support GWS barriers. Currently it is
determined by a environment variable which will be replaced
with MEC FW version check when firmware is ready.
Change-Id: Ie0d00fb20a37ef2856860dbecbe1ad0ca1ef09f7
Signed-off-by: Oak Zeng <Oak.Zeng@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 7 +++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 10 ++++++++++
drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 5 +++++
drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 5 +++++
drivers/gpu/drm/amd/amdkfd/kfd_topology.h | 1 +
6 files changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 98326e3b..8151221 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -544,6 +544,13 @@ uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd)
return adev->rmmio_remap.bus_addr;
}
+uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
+
+ return adev->gds.gws.total_size;
+}
+
int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
uint32_t vmid, uint64_t gpu_addr,
uint32_t *ib_cmd, uint32_t ib_len)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index f57f297..5700643 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -169,6 +169,7 @@ int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd,
uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd);
uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd);
uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd);
+uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd);
uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src);
#define read_user_wptr(mmptr, wptr, dst) \
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index a334d3b..3a03c2b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -666,6 +666,16 @@ MODULE_PARM_DESC(noretry,
int halt_if_hws_hang;
module_param(halt_if_hws_hang, int, 0644);
MODULE_PARM_DESC(halt_if_hws_hang, "Halt if HWS hang is detected (0 = off (default), 1 = on)");
+
+/**
+ * DOC: hws_gws_support(bool)
+ * Whether HWS support gws barriers. Default value: false (not supported)
+ * This will be replaced with a MEC firmware version check once firmware
+ * is ready
+ */
+bool hws_gws_support;
+module_param(hws_gws_support, bool, 0444);
+MODULE_PARM_DESC(hws_gws_support, "MEC FW support gws barriers (false = not supported (Default), true = supported)");
#endif
/**
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 8f02d78..338fb07 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -160,6 +160,11 @@ extern int noretry;
*/
extern int halt_if_hws_hang;
+/*
+ * Whether MEC FW support GWS barriers
+ */
+extern bool hws_gws_support;
+
enum cache_policy {
cache_policy_coherent,
cache_policy_noncoherent
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 2c06d6c..128c72c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -454,6 +454,8 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
dev->node_props.lds_size_in_kb);
sysfs_show_32bit_prop(buffer, "gds_size_in_kb",
dev->node_props.gds_size_in_kb);
+ sysfs_show_32bit_prop(buffer, "num_gws",
+ dev->node_props.num_gws);
sysfs_show_32bit_prop(buffer, "wave_front_size",
dev->node_props.wave_front_size);
sysfs_show_32bit_prop(buffer, "array_count",
@@ -1290,6 +1292,9 @@ int kfd_topology_add_device(struct kfd_dev *gpu)
dev->node_props.num_sdma_engines = gpu->device_info->num_sdma_engines;
dev->node_props.num_sdma_xgmi_engines =
gpu->device_info->num_xgmi_sdma_engines;
+ dev->node_props.num_gws = (hws_gws_support &&
+ dev->gpu->dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) ?
+ amdgpu_amdkfd_get_num_gws(dev->gpu->kgd) : 0;
kfd_fill_mem_clk_max_info(dev);
kfd_fill_iolink_non_crat_info(dev);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
index 949e885..276354a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
@@ -65,6 +65,7 @@ struct kfd_node_properties {
uint32_t max_waves_per_simd;
uint32_t lds_size_in_kb;
uint32_t gds_size_in_kb;
+ uint32_t num_gws;
uint32_t wave_front_size;
uint32_t array_count;
uint32_t simd_arrays_per_engine;
--
2.7.4
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