Commit 06b6476d authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms: detect sideport memory on IGP chips



This detects if the sideport memory is enabled and
if it is VRAM is evicted on suspend/resume.

This should fix s/r issues on some IGPs.
Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent fc9a89f9
......@@ -726,6 +726,10 @@ int r600_mc_init(struct radeon_device *rdev)
a.full = rfixed_const(100);
rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
if (rdev->flags & RADEON_IS_IGP)
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
return 0;
}
......
......@@ -319,10 +319,12 @@ struct radeon_mc {
u64 real_vram_size;
int vram_mtrr;
bool vram_is_ddr;
bool igp_sideport_enabled;
};
int radeon_mc_setup(struct radeon_device *rdev);
bool radeon_combios_sideport_present(struct radeon_device *rdev);
bool radeon_atombios_sideport_present(struct radeon_device *rdev);
/*
* GPU scratch registers structures, functions & helpers
......
......@@ -938,6 +938,43 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
return false;
}
union igp_info {
struct _ATOM_INTEGRATED_SYSTEM_INFO info;
struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
};
bool radeon_atombios_sideport_present(struct radeon_device *rdev)
{
struct radeon_mode_info *mode_info = &rdev->mode_info;
int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
union igp_info *igp_info;
u8 frev, crev;
u16 data_offset;
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);
if (igp_info) {
switch (crev) {
case 1:
if (igp_info->info.ucMemoryType & 0xf0)
return true;
break;
case 2:
if (igp_info->info_2.ucMemoryType & 0x0f)
return true;
break;
default:
DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
break;
}
}
return false;
}
bool radeon_atombios_get_tmds_info(struct radeon_encoder *encoder,
struct radeon_encoder_int_tmds *tmds)
{
......
......@@ -595,6 +595,20 @@ bool radeon_combios_get_clock_info(struct drm_device *dev)
return false;
}
bool radeon_combios_sideport_present(struct radeon_device *rdev)
{
struct drm_device *dev = rdev->ddev;
u16 igp_info;
igp_info = combios_get_table_offset(dev, COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE);
if (igp_info) {
if (RBIOS16(igp_info + 0x4))
return true;
}
return false;
}
static const uint32_t default_primarydac_adj[CHIP_LAST] = {
0x00000808, /* r100 */
0x00000808, /* rv100 */
......
......@@ -221,8 +221,9 @@ int radeon_bo_unpin(struct radeon_bo *bo)
int radeon_bo_evict_vram(struct radeon_device *rdev)
{
if (rdev->flags & RADEON_IS_IGP) {
/* Useless to evict on IGP chips */
return 0;
if (rdev->mc.igp_sideport_enabled == false)
/* Useless to evict on IGP chips */
return 0;
}
return ttm_bo_evict_mm(&rdev->mman.bdev, TTM_PL_VRAM);
}
......
......@@ -356,6 +356,7 @@ static int rs400_mc_init(struct radeon_device *rdev)
rdev->mc.vram_location = G_00015C_MC_FB_START(tmp) << 16;
rdev->mc.gtt_location = 0xFFFFFFFFUL;
r = radeon_mc_setup(rdev);
rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
if (r)
return r;
return 0;
......
......@@ -56,6 +56,7 @@ int rs600_mc_init(struct radeon_device *rdev)
rdev->mc.vram_location = G_000004_MC_FB_START(tmp) << 16;
rdev->mc.gtt_location = 0xffffffffUL;
r = radeon_mc_setup(rdev);
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
if (r)
return r;
return 0;
......
......@@ -172,6 +172,7 @@ static int rs690_mc_init(struct radeon_device *rdev)
rdev->mc.vram_location = G_000100_MC_FB_START(tmp) << 16;
rdev->mc.gtt_location = 0xFFFFFFFFUL;
r = radeon_mc_setup(rdev);
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
if (r)
return r;
return 0;
......
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