drm/radeon/kms: add dpm support for rv7xx (v4)

This adds dpm support for rv7xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index f9069055b069..7221ff43fdc8 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1913,6 +1913,7 @@ struct radeon_device {
         const struct firmware *uvd_fw;  /* UVD firmware */
         const struct firmware *mec_fw;  /* CIK MEC firmware */
         const struct firmware *sdma_fw; /* CIK SDMA firmware */
+        const struct firmware *smc_fw;  /* SMC firmware */
         struct r600_blit r600_blit;
         struct r600_vram_scratch vram_scratch;
         int msi_enabled; /* msi enabled */