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Date: Wed, 9 Sep 2009 22:24:20 +0200
From: Jerome Glisse <jglisse@...hat.com>
To: airlied@...il.com
Cc: dri-devel@...ts.sf.net, linux-kernel@...r.kernel.org,
Jerome Glisse <jglisse@...hat.com>
Subject: [PATCH] drm/radeon/kms: add R4XX mc register access helper.
Atombios will use the mc register access helper and R4XX hw have a
bigger mc range than R3XX so add R4XX specific mc register access
helper.
igned-off-by: Jerome Glisse <jglisse@...hat.com>
---
drivers/gpu/drm/radeon/r420.c | 17 ++++++++++++
drivers/gpu/drm/radeon/r420d.h | 43 ++++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/radeon.h | 4 +++
drivers/gpu/drm/radeon/radeon_device.c | 4 +++
4 files changed, 68 insertions(+), 0 deletions(-)
create mode 100644 drivers/gpu/drm/radeon/r420d.h
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 029cee2..551d699 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -29,6 +29,7 @@
#include "drmP.h"
#include "radeon_reg.h"
#include "radeon.h"
+#include "r420d.h"
/* r420,r423,rv410 depends on : */
void r100_pci_gart_disable(struct radeon_device *rdev);
@@ -237,3 +238,19 @@ int r420_debugfs_pipes_info_init(struct radeon_device *rdev)
return 0;
#endif
}
+
+u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg)
+{
+ u32 r;
+
+ WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg));
+ r = RREG32(R_0001FC_MC_IND_DATA);
+ return r;
+}
+
+void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
+{
+ WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) |
+ S_0001F8_MC_IND_WR_EN(1));
+ WREG32(R_0001FC_MC_IND_DATA, v);
+}
diff --git a/drivers/gpu/drm/radeon/r420d.h b/drivers/gpu/drm/radeon/r420d.h
new file mode 100644
index 0000000..8b946c1
--- /dev/null
+++ b/drivers/gpu/drm/radeon/r420d.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ * Alex Deucher
+ * Jerome Glisse
+ */
+#ifndef R420D_H
+#define R420D_H
+
+#define R_0001F8_MC_IND_INDEX 0x0001F8
+#define S_0001F8_MC_IND_ADDR(x) (((x) & 0x7F) << 0)
+#define G_0001F8_MC_IND_ADDR(x) (((x) >> 0) & 0x7F)
+#define C_0001F8_MC_IND_ADDR 0xFFFFFF80
+#define S_0001F8_MC_IND_WR_EN(x) (((x) & 0x1) << 8)
+#define G_0001F8_MC_IND_WR_EN(x) (((x) >> 8) & 0x1)
+#define C_0001F8_MC_IND_WR_EN 0xFFFFFEFF
+#define R_0001FC_MC_IND_DATA 0x0001FC
+#define S_0001FC_MC_IND_DATA(x) (((x) & 0xFFFFFFFF) << 0)
+#define G_0001FC_MC_IND_DATA(x) (((x) >> 0) & 0xFFFFFFFF)
+#define C_0001FC_MC_IND_DATA 0x00000000
+
+#endif
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index fe86b20..868d7c1 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -940,4 +940,8 @@ int r100_pci_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr);
int r100_pci_gart_enable(struct radeon_device *rdev);
void r100_pci_gart_tlb_flush(struct radeon_device *rdev);
+/* r420,r423,rv410 */
+u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg);
+void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v);
+
#endif
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index da8646a..d1e356b 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -266,6 +266,10 @@ void radeon_register_accessor_init(struct radeon_device *rdev)
rdev->pll_rreg = &r100_pll_rreg;
rdev->pll_wreg = &r100_pll_wreg;
}
+ if (rdev->family >= CHIP_R420) {
+ rdev->mc_rreg = &r420_mc_rreg;
+ rdev->mc_wreg = &r420_mc_wreg;
+ }
if (rdev->family >= CHIP_RV515) {
rdev->mc_rreg = &rv515_mc_rreg;
rdev->mc_wreg = &rv515_mc_wreg;
--
1.6.4.1
--
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