Commit 61cf0593 authored by Jerome Glisse's avatar Jerome Glisse Committed by Dave Airlie

agp: use scratch page on memory remove and at GATT creation V4

Convert most AGP chipset to use scratch page as default entries.
This help avoiding GPU querying 0 address and trigger computer
fault. With KMS and memory manager we bind/unbind AGP memory
constantly and it seems that some GPU are still doing AGP
traffic even after GPU report being idle with the memory segment.

Tested (radeon GPU KMS + Xorg + compiz + glxgears + quake3) on :
- SIS 1039:0001 & 1039:0003
- Intel 865 8086:2571

Compile tested for other bridges

V2 enable scratch page on uninorth
V3 fix unbound check in uninorth insert memory (Michel Dänzer)
V4 rebase on top of drm-next branch with the lastest intel AGP
   changeset (stable should use version V3 of the patch)
Signed-off-by: default avatarJerome Glisse <jglisse@redhat.com>
Signed-off-by: default avatarMichel Dänzer <michel@daenzer.net>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 2d2ef822
......@@ -204,6 +204,7 @@ static const struct agp_bridge_driver ali_generic_bridge = {
.aperture_sizes = ali_generic_sizes,
.size_type = U32_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = ali_configure,
.fetch_size = ali_fetch_size,
.cleanup = ali_cleanup,
......
......@@ -142,6 +142,7 @@ static int amd_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
struct amd_page_map page_dir;
unsigned long __iomem *cur_gatt;
unsigned long addr;
int retval;
u32 temp;
......@@ -178,6 +179,13 @@ static int amd_create_gatt_table(struct agp_bridge_data *bridge)
readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr)); /* PCI Posting. */
}
for (i = 0; i < value->num_entries; i++) {
addr = (i * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
writel(agp_bridge->scratch_page, cur_gatt+GET_GATT_OFF(addr));
readl(cur_gatt+GET_GATT_OFF(addr)); /* PCI Posting. */
}
return 0;
}
......@@ -375,6 +383,7 @@ static const struct agp_bridge_driver amd_irongate_driver = {
.aperture_sizes = amd_irongate_sizes,
.size_type = LVL2_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = amd_irongate_configure,
.fetch_size = amd_irongate_fetch_size,
.cleanup = amd_irongate_cleanup,
......
......@@ -210,6 +210,7 @@ static const struct agp_bridge_driver amd_8151_driver = {
.aperture_sizes = amd_8151_sizes,
.size_type = U32_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = amd_8151_configure,
.fetch_size = amd64_fetch_size,
.cleanup = amd64_cleanup,
......
......@@ -341,6 +341,7 @@ static int ati_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
struct ati_page_map page_dir;
unsigned long __iomem *cur_gatt;
unsigned long addr;
int retval;
u32 temp;
......@@ -395,6 +396,12 @@ static int ati_create_gatt_table(struct agp_bridge_data *bridge)
readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr)); /* PCI Posting. */
}
for (i = 0; i < value->num_entries; i++) {
addr = (i * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
writel(agp_bridge->scratch_page, cur_gatt+GET_GATT_OFF(addr));
}
return 0;
}
......@@ -415,6 +422,7 @@ static const struct agp_bridge_driver ati_generic_bridge = {
.aperture_sizes = ati_generic_sizes,
.size_type = LVL2_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = ati_configure,
.fetch_size = ati_fetch_size,
.cleanup = ati_cleanup,
......
......@@ -464,6 +464,7 @@ static const struct agp_bridge_driver intel_generic_driver = {
.aperture_sizes = intel_generic_sizes,
.size_type = U16_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_configure,
.fetch_size = intel_fetch_size,
.cleanup = intel_cleanup,
......@@ -490,6 +491,7 @@ static const struct agp_bridge_driver intel_815_driver = {
.aperture_sizes = intel_815_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 2,
.needs_scratch_page = true,
.configure = intel_815_configure,
.fetch_size = intel_815_fetch_size,
.cleanup = intel_8xx_cleanup,
......@@ -516,6 +518,7 @@ static const struct agp_bridge_driver intel_820_driver = {
.aperture_sizes = intel_8xx_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_820_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_820_cleanup,
......@@ -542,6 +545,7 @@ static const struct agp_bridge_driver intel_830mp_driver = {
.aperture_sizes = intel_830mp_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 4,
.needs_scratch_page = true,
.configure = intel_830mp_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_8xx_cleanup,
......@@ -568,6 +572,7 @@ static const struct agp_bridge_driver intel_840_driver = {
.aperture_sizes = intel_8xx_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_840_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_8xx_cleanup,
......@@ -594,6 +599,7 @@ static const struct agp_bridge_driver intel_845_driver = {
.aperture_sizes = intel_8xx_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_845_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_8xx_cleanup,
......@@ -620,6 +626,7 @@ static const struct agp_bridge_driver intel_850_driver = {
.aperture_sizes = intel_8xx_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_850_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_8xx_cleanup,
......@@ -646,6 +653,7 @@ static const struct agp_bridge_driver intel_860_driver = {
.aperture_sizes = intel_8xx_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_860_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_8xx_cleanup,
......@@ -672,6 +680,7 @@ static const struct agp_bridge_driver intel_7505_driver = {
.aperture_sizes = intel_8xx_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = intel_7505_configure,
.fetch_size = intel_8xx_fetch_size,
.cleanup = intel_8xx_cleanup,
......
......@@ -310,6 +310,7 @@ static const struct agp_bridge_driver nvidia_driver = {
.aperture_sizes = nvidia_generic_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 5,
.needs_scratch_page = true,
.configure = nvidia_configure,
.fetch_size = nvidia_fetch_size,
.cleanup = nvidia_cleanup,
......
......@@ -125,6 +125,7 @@ static struct agp_bridge_driver sis_driver = {
.aperture_sizes = sis_generic_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 7,
.needs_scratch_page = true,
.configure = sis_configure,
.fetch_size = sis_fetch_size,
.cleanup = sis_cleanup,
......
......@@ -28,6 +28,7 @@
*/
static int uninorth_rev;
static int is_u3;
static u32 scratch_value;
#define DEFAULT_APERTURE_SIZE 256
#define DEFAULT_APERTURE_STRING "256"
......@@ -172,7 +173,7 @@ static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start, int ty
gp = (u32 *) &agp_bridge->gatt_table[pg_start];
for (i = 0; i < mem->page_count; ++i) {
if (gp[i]) {
if (gp[i] != scratch_value) {
dev_info(&agp_bridge->dev->dev,
"uninorth_insert_memory: entry 0x%x occupied (%x)\n",
i, gp[i]);
......@@ -214,8 +215,9 @@ int uninorth_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
return 0;
gp = (u32 *) &agp_bridge->gatt_table[pg_start];
for (i = 0; i < mem->page_count; ++i)
gp[i] = 0;
for (i = 0; i < mem->page_count; ++i) {
gp[i] = scratch_value;
}
mb();
uninorth_tlbflush(mem);
......@@ -421,8 +423,13 @@ static int uninorth_create_gatt_table(struct agp_bridge_data *bridge)
bridge->gatt_bus_addr = virt_to_phys(table);
if (is_u3)
scratch_value = (page_to_phys(agp_bridge->scratch_page_page) >> PAGE_SHIFT) | 0x80000000UL;
else
scratch_value = cpu_to_le32((page_to_phys(agp_bridge->scratch_page_page) & 0xFFFFF000UL) |
0x1UL);
for (i = 0; i < num_entries; i++)
bridge->gatt_table[i] = 0;
bridge->gatt_table[i] = scratch_value;
return 0;
......@@ -519,6 +526,7 @@ const struct agp_bridge_driver uninorth_agp_driver = {
.agp_destroy_pages = agp_generic_destroy_pages,
.agp_type_to_mask_type = agp_generic_type_to_mask_type,
.cant_use_aperture = true,
.needs_scratch_page = true,
};
const struct agp_bridge_driver u3_agp_driver = {
......
......@@ -175,6 +175,7 @@ static const struct agp_bridge_driver via_agp3_driver = {
.aperture_sizes = agp3_generic_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 10,
.needs_scratch_page = true,
.configure = via_configure_agp3,
.fetch_size = via_fetch_size_agp3,
.cleanup = via_cleanup_agp3,
......@@ -201,6 +202,7 @@ static const struct agp_bridge_driver via_driver = {
.aperture_sizes = via_generic_sizes,
.size_type = U8_APER_SIZE,
.num_aperture_sizes = 9,
.needs_scratch_page = true,
.configure = via_configure,
.fetch_size = via_fetch_size,
.cleanup = via_cleanup,
......
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