From 724c80e1d630296d1324859e964d80d35007d83c Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 27 Aug 2010 18:25:25 -0400
Subject: drm/radeon/kms: enable writeback (v2)
When writeback is enabled, the GPU shadows writes to certain
registers into a buffer in memory. The driver can then read
the values from the shadow rather than reading back from the
register across the bus. Writeback can be disabled by setting
the no_wb module param to 1.
On r6xx/r7xx/evergreen, the following registers are shadowed:
- CP scratch registers
- CP read pointer
- IH write pointer
On r1xx-rr5xx, the following registers are shadowed:
- CP scratch registers
- CP read pointer
v2:
- Combine wb patches for r6xx-evergreen and r1xx-r5xx
- Writeback is disabled on AGP boards since it tends to be
unreliable on AGP using the gart.
- Check radeon_wb_init return values properly.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/radeon/r520.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
(limited to 'drivers/gpu/drm/radeon/r520.c')
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 1458dee902dd..3c8677f9e385 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -181,6 +181,12 @@ static int r520_startup(struct radeon_device *rdev)
if (r)
return r;
}
+
+ /* allocate wb buffer */
+ r = radeon_wb_init(rdev);
+ if (r)
+ return r;
+
/* Enable IRQ */
rs600_irq_set(rdev);
rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -190,9 +196,6 @@ static int r520_startup(struct radeon_device *rdev)
dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
return r;
}
- r = r100_wb_init(rdev);
- if (r)
- dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
r = r100_ib_init(rdev);
if (r) {
dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
@@ -295,7 +298,7 @@ int r520_init(struct radeon_device *rdev)
/* Somethings want wront with the accel init stop accel */
dev_err(rdev->dev, "Disabling GPU acceleration\n");
r100_cp_fini(rdev);
- r100_wb_fini(rdev);
+ radeon_wb_fini(rdev);
r100_ib_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
--
cgit v1.2.2
From d75ee3be44380040b9d2c7925298dc52e049768d Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Mon, 24 Jan 2011 23:24:59 -0500
Subject: drm/radeon/kms: clean up some magic numbers
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
---
drivers/gpu/drm/radeon/r520.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'drivers/gpu/drm/radeon/r520.c')
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 3c8677f9e385..2ce80d976568 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -79,8 +79,8 @@ static void r520_gpu_init(struct radeon_device *rdev)
WREG32(0x4128, 0xFF);
}
r420_pipes_init(rdev);
- gb_pipe_select = RREG32(0x402C);
- tmp = RREG32(0x170C);
+ gb_pipe_select = RREG32(R400_GB_PIPE_SELECT);
+ tmp = RREG32(R300_DST_PIPE_CONFIG);
pipe_select_current = (tmp >> 2) & 3;
tmp = (1 << pipe_select_current) |
(((gb_pipe_select >> 8) & 0xF) << 4);
--
cgit v1.2.2
From ec4f2ac471e25d3e0cea05abb8da34c05a0868f9 Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Fri, 28 Jan 2011 23:32:04 +0100
Subject: drm: Fix printk typo 'failled'
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
drivers/gpu/drm/radeon/r520.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'drivers/gpu/drm/radeon/r520.c')
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 2ce80d976568..3081d07f8de5 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -193,12 +193,12 @@ static int r520_startup(struct radeon_device *rdev)
/* 1M ring buffer */
r = r100_cp_init(rdev, 1024 * 1024);
if (r) {
- dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
+ dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
return r;
}
r = r100_ib_init(rdev);
if (r) {
- dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
+ dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
return r;
}
return 0;
--
cgit v1.2.2