Merge tag 'amd-drm-next-5.15-2021-07-29' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-5.15-2021-07-29:

amdgpu:
- VCN/JPEG power down sequencing fixes
- Various navi pcie link handling fixes
- Clockgating fixes
- Yellow Carp fixes
- Beige Goby fixes
- Misc code cleanups
- S0ix fixes
- SMU i2c bus rework
- EEPROM handling rework
- PSP ucode handling cleanup
- SMU error handling rework
- AMD HDMI freesync fixes
- USB PD firmware update rework
- MMIO based vram access rework
- Misc display fixes
- Backlight fixes
- Add initial Cyan Skillfish support
- Overclocking fixes suspend/resume

amdkfd:
- Sysfs leak fix
- Add counters for vm faults and migration
- GPUVM TLB optimizations

radeon:
- Misc fixes

Signed-off-by: Dave Airlie <[email protected]>

From: Alex Deucher <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

1 files changed, 83 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index f9c01bdc3d4c..7b46ba551cb2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -21,6 +21,7 @@
  */
 
 #include "amdgpu_amdkfd.h"
+#include "amd_pcie.h"
 #include "amd_shared.h"
 
 #include "amdgpu.h"
@@ -553,6 +554,88 @@ uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *s
 	return  (uint8_t)ret;
 }
 
+int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct kgd_dev *dst, struct kgd_dev *src, bool is_min)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)dst, *peer_adev;
+	int num_links;
+
+	if (adev->asic_type != CHIP_ALDEBARAN)
+		return 0;
+
+	if (src)
+		peer_adev = (struct amdgpu_device *)src;
+
+	/* num links returns 0 for indirect peers since indirect route is unknown. */
+	num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev);
+	if (num_links < 0) {
+		DRM_ERROR("amdgpu: failed to get xgmi num links between node %d and %d. ret = %d\n",
+			adev->gmc.xgmi.physical_node_id,
+			peer_adev->gmc.xgmi.physical_node_id, num_links);
+		num_links = 0;
+	}
+
+	/* Aldebaran xGMI DPM is defeatured so assume x16 x 25Gbps for bandwidth. */
+	return (num_links * 16 * 25000)/BITS_PER_BYTE;
+}
+
+int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct kgd_dev *dev, bool is_min)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)dev;
+	int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) :
+							fls(adev->pm.pcie_mlw_mask)) - 1;
+	int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask &
+						CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) :
+					fls(adev->pm.pcie_gen_mask &
+						CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1;
+	uint32_t num_lanes_mask = 1 << num_lanes_shift;
+	uint32_t gen_speed_mask = 1 << gen_speed_shift;
+	int num_lanes_factor = 0, gen_speed_mbits_factor = 0;
+
+	switch (num_lanes_mask) {
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1:
+		num_lanes_factor = 1;
+		break;
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2:
+		num_lanes_factor = 2;
+		break;
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4:
+		num_lanes_factor = 4;
+		break;
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8:
+		num_lanes_factor = 8;
+		break;
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12:
+		num_lanes_factor = 12;
+		break;
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16:
+		num_lanes_factor = 16;
+		break;
+	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32:
+		num_lanes_factor = 32;
+		break;
+	}
+
+	switch (gen_speed_mask) {
+	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1:
+		gen_speed_mbits_factor = 2500;
+		break;
+	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2:
+		gen_speed_mbits_factor = 5000;
+		break;
+	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3:
+		gen_speed_mbits_factor = 8000;
+		break;
+	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4:
+		gen_speed_mbits_factor = 16000;
+		break;
+	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5:
+		gen_speed_mbits_factor = 32000;
+		break;
+	}
+
+	return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE;
+}
+
 uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;