drm/radeon/kms: add initial Evergreen support (Radeon HD 5xxx)

This adds initial Evergreen KMS support, it doesn't include
any acceleration features or interrupt handling yet.

Major changes are DCE4 handling for PLLs for the > 2 crtcs.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b519d7db2dcb..a7a96a240844 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -138,11 +138,14 @@ void radeon_dummy_page_fini(struct radeon_device *rdev);
 struct radeon_clock {
         struct radeon_pll p1pll;
         struct radeon_pll p2pll;
+        struct radeon_pll dcpll;
         struct radeon_pll spll;
         struct radeon_pll mpll;
         /* 10 Khz units */
         uint32_t default_mclk;
         uint32_t default_sclk;
+        uint32_t default_dispclk;
+        uint32_t dp_extclk;
 };
 
 /*
@@ -1062,7 +1065,7 @@ void r100_pll_errata_after_index(struct radeon_device *rdev);
 #define ASIC_IS_AVIVO(rdev) ((rdev->family >= CHIP_RS600))
 #define ASIC_IS_DCE3(rdev) ((rdev->family >= CHIP_RV620))
 #define ASIC_IS_DCE32(rdev) ((rdev->family >= CHIP_RV730))
-
+#define ASIC_IS_DCE4(rdev) ((rdev->family >= CHIP_CEDAR))
 
 /*
  * BIOS helpers.
@@ -1296,6 +1299,14 @@ extern void r600_hdmi_update_audio_settings(struct drm_encoder *encoder,
                                             uint8_t status_bits,
                                             uint8_t category_code);
 
+/* evergreen */
+struct evergreen_mc_save {
+        u32 vga_control[6];
+        u32 vga_render_control;
+        u32 vga_hdp_control;
+        u32 crtc_control[6];
+};
+
 #include "radeon_object.h"
 
 #endif