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-rw-r--r--drivers/gpu/drm/radeon/r600.c2
-rw-r--r--drivers/gpu/drm/radeon/radeon.h1
-rw-r--r--drivers/gpu/drm/radeon/radeon_device.c15
-rw-r--r--drivers/gpu/drm/radeon/rv770.c2
-rw-r--r--drivers/gpu/drm/radeon/si.c44
5 files changed, 18 insertions, 46 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 0740db3fcd2..1c530877894 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1145,7 +1145,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc
}
if (rdev->flags & RADEON_IS_AGP) {
size_bf = mc->gtt_start;
- size_af = 0xFFFFFFFF - mc->gtt_end;
+ size_af = mc->mc_mask - mc->gtt_end;
if (size_bf > size_af) {
if (mc->mc_vram_size > size_bf) {
dev_warn(rdev->dev, "limiting VRAM\n");
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 8263af3fd83..8bd87530444 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -517,6 +517,7 @@ struct radeon_mc {
bool vram_is_ddr;
bool igp_sideport_enabled;
u64 gtt_base_align;
+ u64 mc_mask;
};
bool radeon_combios_sideport_present(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 44b8034a400..62d0ba33858 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -359,7 +359,7 @@ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64
uint64_t limit = (uint64_t)radeon_vram_limit << 20;
mc->vram_start = base;
- if (mc->mc_vram_size > (0xFFFFFFFF - base + 1)) {
+ if (mc->mc_vram_size > (rdev->mc.mc_mask - base + 1)) {
dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
mc->real_vram_size = mc->aper_size;
mc->mc_vram_size = mc->aper_size;
@@ -394,7 +394,7 @@ void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
{
u64 size_af, size_bf;
- size_af = ((0xFFFFFFFF - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
+ size_af = ((rdev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
size_bf = mc->vram_start & ~mc->gtt_base_align;
if (size_bf > size_af) {
if (mc->gtt_size > size_bf) {
@@ -1068,6 +1068,17 @@ int radeon_device_init(struct radeon_device *rdev,
radeon_agp_disable(rdev);
}
+ /* Set the internal MC address mask
+ * This is the max address of the GPU's
+ * internal address space.
+ */
+ if (rdev->family >= CHIP_CAYMAN)
+ rdev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
+ else if (rdev->family >= CHIP_CEDAR)
+ rdev->mc.mc_mask = 0xfffffffffULL; /* 36 bit MC */
+ else
+ rdev->mc.mc_mask = 0xffffffffULL; /* 32 bit MC */
+
/* set DMA mask + need_dma32 flags.
* PCIE - can handle 40-bits.
* IGP - can handle 40-bits
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index d63fe1d0f53..d4d9be17cfb 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -840,7 +840,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
}
if (rdev->flags & RADEON_IS_AGP) {
size_bf = mc->gtt_start;
- size_af = 0xFFFFFFFF - mc->gtt_end;
+ size_af = mc->mc_mask - mc->gtt_end;
if (size_bf > size_af) {
if (mc->mc_vram_size > size_bf) {
dev_warn(rdev->dev, "limiting VRAM\n");
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index bafbe321695..862b52c6988 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -2538,46 +2538,6 @@ static void si_mc_program(struct radeon_device *rdev)
rv515_vga_render_disable(rdev);
}
-/* SI MC address space is 40 bits */
-static void si_vram_location(struct radeon_device *rdev,
- struct radeon_mc *mc, u64 base)
-{
- mc->vram_start = base;
- if (mc->mc_vram_size > (0xFFFFFFFFFFULL - base + 1)) {
- dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
- mc->real_vram_size = mc->aper_size;
- mc->mc_vram_size = mc->aper_size;
- }
- mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
- dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
- mc->mc_vram_size >> 20, mc->vram_start,
- mc->vram_end, mc->real_vram_size >> 20);
-}
-
-static void si_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
-{
- u64 size_af, size_bf;
-
- size_af = ((0xFFFFFFFFFFULL - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
- size_bf = mc->vram_start & ~mc->gtt_base_align;
- if (size_bf > size_af) {
- if (mc->gtt_size > size_bf) {
- dev_warn(rdev->dev, "limiting GTT\n");
- mc->gtt_size = size_bf;
- }
- mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
- } else {
- if (mc->gtt_size > size_af) {
- dev_warn(rdev->dev, "limiting GTT\n");
- mc->gtt_size = size_af;
- }
- mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
- }
- mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
- dev_info(rdev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n",
- mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
-}
-
static void si_vram_gtt_location(struct radeon_device *rdev,
struct radeon_mc *mc)
{
@@ -2587,9 +2547,9 @@ static void si_vram_gtt_location(struct radeon_device *rdev,
mc->real_vram_size = 0xFFC0000000ULL;
mc->mc_vram_size = 0xFFC0000000ULL;
}
- si_vram_location(rdev, &rdev->mc, 0);
+ radeon_vram_location(rdev, &rdev->mc, 0);
rdev->mc.gtt_base_align = 0;
- si_gtt_location(rdev, mc);
+ radeon_gtt_location(rdev, mc);
}
static int si_mc_init(struct radeon_device *rdev)