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From: Greg KH on 6 Aug 2010 15:40
2.6.34-stable review patch. If anyone has any objections, please let us know.

------------------

From: Alex Deucher <alexdeucher(a)gmail.com>

commit 4c70b2eae371ebe83019ac47de6088b78124ab36 upstream.

Intel variants don't support it.

Signed-off-by: Alex Deucher <alexdeucher(a)gmail.com>
Signed-off-by: Dave Airlie <airlied(a)redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
drivers/gpu/drm/radeon/radeon_atombios.c | 15 ++++++---------
drivers/gpu/drm/radeon/radeon_combios.c | 4 ++++
drivers/gpu/drm/radeon/rs600.c | 1 -
drivers/gpu/drm/radeon/rs690.c | 2 +-
4 files changed, 11 insertions(+), 11 deletions(-)

--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1024,21 +1024,18 @@ bool radeon_atombios_sideport_present(st
u8 frev, crev;
u16 data_offset;

+ /* sideport is AMD only */
+ if (rdev->family == CHIP_RS600)
+ return false;
+
if (atom_parse_data_header(mode_info->atom_context, index, NULL,
&frev, &crev, &data_offset)) {
igp_info = (union igp_info *)(mode_info->atom_context->bios +
data_offset);
switch (crev) {
case 1:
- /* AMD IGPS */
- if ((rdev->family == CHIP_RS690) ||
- (rdev->family == CHIP_RS740)) {
- if (igp_info->info.ulBootUpMemoryClock)
- return true;
- } else {
- if (igp_info->info.ucMemoryType & 0xf0)
- return true;
- }
+ if (igp_info->info.ulBootUpMemoryClock)
+ return true;
break;
case 2:
if (igp_info->info_2.ucMemoryType & 0x0f)
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -693,6 +693,10 @@ bool radeon_combios_sideport_present(str
struct drm_device *dev = rdev->ddev;
u16 igp_info;

+ /* sideport is AMD only */
+ if (rdev->family == CHIP_RS400)
+ return false;
+
igp_info = combios_get_table_offset(dev, COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE);

if (igp_info) {
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -475,7 +475,6 @@ void rs600_mc_init(struct radeon_device
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
base = RREG32_MC(R_000004_MC_FB_LOCATION);
base = G_000004_MC_FB_START(base) << 16;
- rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
radeon_vram_location(rdev, &rdev->mc, base);
radeon_gtt_location(rdev, &rdev->mc);
radeon_update_bandwidth_info(rdev);
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -158,8 +158,8 @@ void rs690_mc_init(struct radeon_device
rdev->mc.visible_vram_size = rdev->mc.aper_size;
base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
base = G_000100_MC_FB_START(base) << 16;
- rs690_pm_info(rdev);
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
+ rs690_pm_info(rdev);
radeon_vram_location(rdev, &rdev->mc, base);
radeon_gtt_location(rdev, &rdev->mc);
radeon_update_bandwidth_info(rdev);


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