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authorAlex Deucher <alexdeucher@gmail.com>2011-01-06 18:49:35 -0500
committerDave Airlie <airlied@redhat.com>2011-01-07 14:11:14 +1000
commit9e46a48df24f9698b34d28385b320c529851e5f7 (patch)
tree9b89b4f1240fcb02e114704d93fb8b98febed85a /drivers/gpu/drm/radeon/evergreend.h
parent3313e3d4333ccbf8bd7c816775cfe9aca623bd8a (diff)
drm/radeon/kms: add support for gen2 pcie link speeds
Supported on rv6xx/r7xx/evergreen. Cards come up in gen1 mode. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreend.h')
-rw-r--r--drivers/gpu/drm/radeon/evergreend.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index 94140e142abb..b8da323f15c8 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -581,6 +581,44 @@
# define DC_HPDx_RX_INT_TIMER(x) ((x) << 16)
# define DC_HPDx_EN (1 << 28)
+/* PCIE link stuff */
+#define PCIE_LC_TRAINING_CNTL 0xa1 /* PCIE_P */
+#define PCIE_LC_LINK_WIDTH_CNTL 0xa2 /* PCIE_P */
+# define LC_LINK_WIDTH_SHIFT 0
+# define LC_LINK_WIDTH_MASK 0x7
+# define LC_LINK_WIDTH_X0 0
+# define LC_LINK_WIDTH_X1 1
+# define LC_LINK_WIDTH_X2 2
+# define LC_LINK_WIDTH_X4 3
+# define LC_LINK_WIDTH_X8 4
+# define LC_LINK_WIDTH_X16 6
+# define LC_LINK_WIDTH_RD_SHIFT 4
+# define LC_LINK_WIDTH_RD_MASK 0x70
+# define LC_RECONFIG_ARC_MISSING_ESCAPE (1 << 7)
+# define LC_RECONFIG_NOW (1 << 8)
+# define LC_RENEGOTIATION_SUPPORT (1 << 9)
+# define LC_RENEGOTIATE_EN (1 << 10)
+# define LC_SHORT_RECONFIG_EN (1 << 11)
+# define LC_UPCONFIGURE_SUPPORT (1 << 12)
+# define LC_UPCONFIGURE_DIS (1 << 13)
+#define PCIE_LC_SPEED_CNTL 0xa4 /* PCIE_P */
+# define LC_GEN2_EN_STRAP (1 << 0)
+# define LC_TARGET_LINK_SPEED_OVERRIDE_EN (1 << 1)
+# define LC_FORCE_EN_HW_SPEED_CHANGE (1 << 5)
+# define LC_FORCE_DIS_HW_SPEED_CHANGE (1 << 6)
+# define LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_MASK (0x3 << 8)
+# define LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_SHIFT 3
+# define LC_CURRENT_DATA_RATE (1 << 11)
+# define LC_VOLTAGE_TIMER_SEL_MASK (0xf << 14)
+# define LC_CLR_FAILED_SPD_CHANGE_CNT (1 << 21)
+# define LC_OTHER_SIDE_EVER_SENT_GEN2 (1 << 23)
+# define LC_OTHER_SIDE_SUPPORTS_GEN2 (1 << 24)
+#define MM_CFGREGS_CNTL 0x544c
+# define MM_WR_TO_CFG_EN (1 << 3)
+#define LINK_CNTL2 0x88 /* F0 */
+# define TARGET_LINK_SPEED_MASK (0xf << 0)
+# define SELECTABLE_DEEMPHASIS (1 << 6)
+
/*
* PM4
*/