otherwise PF & VF exchange is broken
Change-Id: Icbb44e640ba1c6e61914cbd234e92de001496195
Signed-off-by: Monk Liu <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 26 ++++++++++++++++++++----
1 file changed, 22 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index f9ffe8e..455ad63 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -71,19 +71,37 @@ int amdgpu_atomfirmware_allocate_fb_scratch(struct
amdgpu_device *adev)
struct atom_context *ctx = adev->mode_info.atom_context;
int index =
get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
vram_usagebyfirmware);
+ struct vram_usagebyfirmware_v2_1 * firmware_usage;
+ uint32_t start_addr, size;
uint16_t data_offset;
int usage_bytes = 0;
if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL,
&data_offset)) {
- struct vram_usagebyfirmware_v2_1 *firmware_usage =
- (struct vram_usagebyfirmware_v2_1 *)(ctx->bios +
data_offset);
+ printk("data_offset=%x\n", data_offset);
+ firmware_usage = (struct vram_usagebyfirmware_v2_1 *)(ctx->bios
+ data_offset);
- DRM_DEBUG("atom firmware requested %08x %dkb fw %dkb drv\n",
+ DRM_INFO("atom firmware requested %08x %dkb fw %dkb drv\n",
le32_to_cpu(firmware_usage->start_address_in_kb),
le16_to_cpu(firmware_usage->used_by_firmware_in_kb),
le16_to_cpu(firmware_usage->used_by_driver_in_kb));
- usage_bytes = le16_to_cpu(firmware_usage->used_by_driver_in_kb)
* 1024;
+ start_addr = le32_to_cpu(firmware_usage->start_address_in_kb);
+ size = le16_to_cpu(firmware_usage->used_by_firmware_in_kb);
+
+ printk("start_addr = %x, size=%x\n", start_addr, size);
+
+ if ((uint32_t)(start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
+ (uint32_t)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION
<<
+ ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
+ /* Firmware request VRAM reservation for SR-IOV */
+ adev->fw_vram_usage.start_offset = (start_addr &
+ (~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
+ adev->fw_vram_usage.size = size << 10;
+ /* Use the default scratch size */
+ usage_bytes = 0;
+ } else {
+ usage_bytes =
le16_to_cpu(firmware_usage->used_by_driver_in_kb) << 10;
+ }
}
ctx->scratch_size_bytes = 0;
if (usage_bytes == 0)
--
2.7.4
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