drm/radeon: implement pci config reset for SI (v2)
pci config reset is a low level reset that resets
the entire chip from the bus interface. It can
be more reliable if soft reset fails.
v2: hide behind module parameter
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index b322acc..caa3e61 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -94,6 +94,8 @@
#define CG_SPLL_FUNC_CNTL_2 0x604
#define SCLK_MUX_SEL(x) ((x) << 0)
#define SCLK_MUX_SEL_MASK (0x1ff << 0)
+#define SPLL_CTLREQ_CHG (1 << 23)
+#define SCLK_MUX_UPDATE (1 << 26)
#define CG_SPLL_FUNC_CNTL_3 0x608
#define SPLL_FB_DIV(x) ((x) << 0)
#define SPLL_FB_DIV_MASK (0x3ffffff << 0)
@@ -101,7 +103,10 @@
#define SPLL_DITHEN (1 << 28)
#define CG_SPLL_FUNC_CNTL_4 0x60c
+#define SPLL_STATUS 0x614
+#define SPLL_CHG_STATUS (1 << 1)
#define SPLL_CNTL_MODE 0x618
+#define SPLL_SW_DIR_CONTROL (1 << 0)
# define SPLL_REFCLK_SEL(x) ((x) << 8)
# define SPLL_REFCLK_SEL_MASK 0xFF00
@@ -559,6 +564,8 @@
# define MRDCK0_BYPASS (1 << 24)
# define MRDCK1_BYPASS (1 << 25)
+#define MPLL_CNTL_MODE 0x2bb0
+# define MPLL_MCLK_SEL (1 << 11)
#define MPLL_FUNC_CNTL 0x2bb4
#define BWCTRL(x) ((x) << 20)
#define BWCTRL_MASK (0xff << 20)