drm/amdkfd: Add asic property to kfd_device_info

This patch adds a new property to kfd_device_info structure. That structure
holds information that is H/W specific.

The new property is called asic_family and its purpose is to distinguish
between different asic families in amdkfd operations, mainly in QCM (queue
control & management)

This patch also adds a new enum, to select different ASICs. We set the current
kfd_device_info instance as Kaveri and create a new instance which describes
the new AMD APU, codenamed 'Carrizo'.

Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

2 files changed, 15 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 994a9c1bdd04..24b37ffad5c6 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -31,6 +31,14 @@
 #define MQD_SIZE_ALIGNED 768
 
 static const struct kfd_device_info kaveri_device_info = {
+        .asic_family = CHIP_KAVERI,
+        .max_pasid_bits = 16,
+        .ih_ring_entry_size = 4 * sizeof(uint32_t),
+        .mqd_size_aligned = MQD_SIZE_ALIGNED
+};
+
+static const struct kfd_device_info carrizo_device_info = {
+        .asic_family = CHIP_CARRIZO,
         .max_pasid_bits = 16,
         .ih_ring_entry_size = 4 * sizeof(uint32_t),
         .num_of_watch_points = 4,
@@ -65,7 +73,7 @@ static const struct kfd_deviceid supported_devices[] = {
         { 0x1318, &kaveri_device_info },        /* Kaveri */
         { 0x131B, &kaveri_device_info },        /* Kaveri */
         { 0x131C, &kaveri_device_info },        /* Kaveri */
-        { 0x131D, &kaveri_device_info },        /* Kaveri */
+        { 0x131D, &kaveri_device_info }         /* Kaveri */
 };
 
 static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index a4e0ddd56778..872a1da4c02e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -104,7 +104,13 @@ enum cache_policy {
         cache_policy_noncoherent
 };
 
+enum asic_family_type {
+        CHIP_KAVERI = 0,
+        CHIP_CARRIZO
+};
+
 struct kfd_device_info {
+        unsigned int asic_family;
         unsigned int max_pasid_bits;
         size_t ih_ring_entry_size;
         uint8_t num_of_watch_points;