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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-26 06:26:54 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-26 06:26:54 +0400
commitb394209ce528b6a6e76c6460300781981140d207 (patch)
treea3263cca4f4ea9b79e3ea2696cc6dd99d1decf91 /drivers
parentfec4fba6e44407cfbdeed7d48f6f37e6ddfe19d7 (diff)
parent96fb1a241de128d75d5335c24392b065033c2dbe (diff)
downloadlinux-b394209ce528b6a6e76c6460300781981140d207.tar.xz
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm radeon fixes from Dave Airlie: "Just radeon fixes in this one: - some new PCI IDs - ATPX regression fix - async VM regression fixes - some module options fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: fix ATPX regression in acpi rework drm/radeon: fix ATPX function documentation drm/radeon: move the retry to gem_object_create drm/radeon: move size limits to gem_object_create. drm/radeon: use vzalloc for gart pages drm/radeon: fix and simplify pot argument checks v3 drm/radeon: fix header size estimation in VM code drm/radeon: remove set_page check from VM code drm/radeon: fix si_set_page v2 drm/radeon: fix cayman_vm_set_page v2 drm/radeon: fix PFP sync in vm_flush drm/radeon: add error output if VM CS fails on cayman drm/radeon: give each backlight a unique id drm/radeon: fix sparse warning drm/radeon: add some new SI PCI ids
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/atombios_encoders.c5
-rw-r--r--drivers/gpu/drm/radeon/evergreen_cs.c1
-rw-r--r--drivers/gpu/drm/radeon/ni.c45
-rw-r--r--drivers/gpu/drm/radeon/nid.h1
-rw-r--r--drivers/gpu/drm/radeon/radeon_atpx_handler.c6
-rw-r--r--drivers/gpu/drm/radeon/radeon_device.c60
-rw-r--r--drivers/gpu/drm/radeon/radeon_gart.c22
-rw-r--r--drivers/gpu/drm/radeon/radeon_gem.c18
-rw-r--r--drivers/gpu/drm/radeon/radeon_legacy_encoders.c5
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.c19
-rw-r--r--drivers/gpu/drm/radeon/si.c47
11 files changed, 119 insertions, 110 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 49cbb3795a10..ba498f8e47a2 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -184,6 +184,7 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
struct radeon_backlight_privdata *pdata;
struct radeon_encoder_atom_dig *dig;
u8 backlight_level;
+ char bl_name[16];
if (!radeon_encoder->enc_priv)
return;
@@ -203,7 +204,9 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
memset(&props, 0, sizeof(props));
props.max_brightness = RADEON_MAX_BL_LEVEL;
props.type = BACKLIGHT_RAW;
- bd = backlight_device_register("radeon_bl", &drm_connector->kdev,
+ snprintf(bl_name, sizeof(bl_name),
+ "radeon_bl%d", dev->primary->index);
+ bd = backlight_device_register(bl_name, &drm_connector->kdev,
pdata, &radeon_atom_backlight_ops, &props);
if (IS_ERR(bd)) {
DRM_ERROR("Backlight registration failed\n");
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 573ed1bc6cf7..30271b641913 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -2829,6 +2829,7 @@ static bool evergreen_vm_reg_valid(u32 reg)
case CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS:
return true;
default:
+ DRM_ERROR("Invalid register 0x%x in CS\n", reg);
return false;
}
}
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 8c74c729586d..81e6a568c29d 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1538,26 +1538,31 @@ void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe,
{
struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index];
uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
- int i;
- radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, 1 + count * 2));
- radeon_ring_write(ring, pe);
- radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
- for (i = 0; i < count; ++i) {
- uint64_t value = 0;
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- value = radeon_vm_map_gart(rdev, addr);
- value &= 0xFFFFFFFFFFFFF000ULL;
- addr += incr;
-
- } else if (flags & RADEON_VM_PAGE_VALID) {
- value = addr;
- addr += incr;
- }
+ while (count) {
+ unsigned ndw = 1 + count * 2;
+ if (ndw > 0x3FFF)
+ ndw = 0x3FFF;
+
+ radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, ndw));
+ radeon_ring_write(ring, pe);
+ radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
+ for (; ndw > 1; ndw -= 2, --count, pe += 8) {
+ uint64_t value = 0;
+ if (flags & RADEON_VM_PAGE_SYSTEM) {
+ value = radeon_vm_map_gart(rdev, addr);
+ value &= 0xFFFFFFFFFFFFF000ULL;
+ addr += incr;
+
+ } else if (flags & RADEON_VM_PAGE_VALID) {
+ value = addr;
+ addr += incr;
+ }
- value |= r600_flags;
- radeon_ring_write(ring, value);
- radeon_ring_write(ring, upper_32_bits(value));
+ value |= r600_flags;
+ radeon_ring_write(ring, value);
+ radeon_ring_write(ring, upper_32_bits(value));
+ }
}
}
@@ -1586,4 +1591,8 @@ void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
/* bits 0-7 are the VM contexts0-7 */
radeon_ring_write(ring, PACKET0(VM_INVALIDATE_REQUEST, 0));
radeon_ring_write(ring, 1 << vm->id);
+
+ /* sync PFP to ME, otherwise we might get invalid PFP reads */
+ radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
+ radeon_ring_write(ring, 0x0);
}
diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index 2423d1b5d385..cbef6815907a 100644
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -502,6 +502,7 @@
#define PACKET3_MPEG_INDEX 0x3A
#define PACKET3_WAIT_REG_MEM 0x3C
#define PACKET3_MEM_WRITE 0x3D
+#define PACKET3_PFP_SYNC_ME 0x42
#define PACKET3_SURFACE_SYNC 0x43
# define PACKET3_CB0_DEST_BASE_ENA (1 << 6)
# define PACKET3_CB1_DEST_BASE_ENA (1 << 7)
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 1aa3f910b993..37f6a907aea4 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -87,7 +87,7 @@ static union acpi_object *radeon_atpx_call(acpi_handle handle, int function,
atpx_arg_elements[1].integer.value = 0;
}
- status = acpi_evaluate_object(handle, "ATPX", &atpx_arg, &buffer);
+ status = acpi_evaluate_object(handle, NULL, &atpx_arg, &buffer);
/* Fail only if calling the method fails and ATPX is supported */
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
@@ -373,11 +373,11 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id,
}
/**
- * radeon_atpx_pci_probe_handle - look up the ATRM and ATPX handles
+ * radeon_atpx_pci_probe_handle - look up the ATPX handle
*
* @pdev: pci device
*
- * Look up the ATPX and ATRM handles (all asics).
+ * Look up the ATPX handles (all asics).
* Returns true if the handles are found, false if not.
*/
static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index bd13ca09eb62..e2f5f888c374 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -355,6 +355,8 @@ int radeon_wb_init(struct radeon_device *rdev)
*/
void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base)
{
+ uint64_t limit = (uint64_t)radeon_vram_limit << 20;
+
mc->vram_start = base;
if (mc->mc_vram_size > (0xFFFFFFFF - base + 1)) {
dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
@@ -368,8 +370,8 @@ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64
mc->mc_vram_size = mc->aper_size;
}
mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
- if (radeon_vram_limit && radeon_vram_limit < mc->real_vram_size)
- mc->real_vram_size = radeon_vram_limit;
+ if (limit && limit < mc->real_vram_size)
+ mc->real_vram_size = limit;
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);
@@ -835,6 +837,19 @@ static unsigned int radeon_vga_set_decode(void *cookie, bool state)
}
/**
+ * radeon_check_pot_argument - check that argument is a power of two
+ *
+ * @arg: value to check
+ *
+ * Validates that a certain argument is a power of two (all asics).
+ * Returns true if argument is valid.
+ */
+static bool radeon_check_pot_argument(int arg)
+{
+ return (arg & (arg - 1)) == 0;
+}
+
+/**
* radeon_check_arguments - validate module params
*
* @rdev: radeon_device pointer
@@ -845,52 +860,25 @@ static unsigned int radeon_vga_set_decode(void *cookie, bool state)
static void radeon_check_arguments(struct radeon_device *rdev)
{
/* vramlimit must be a power of two */
- switch (radeon_vram_limit) {
- case 0:
- case 4:
- case 8:
- case 16:
- case 32:
- case 64:
- case 128:
- case 256:
- case 512:
- case 1024:
- case 2048:
- case 4096:
- break;
- default:
+ if (!radeon_check_pot_argument(radeon_vram_limit)) {
dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n",
radeon_vram_limit);
radeon_vram_limit = 0;
- break;
}
- radeon_vram_limit = radeon_vram_limit << 20;
+
/* gtt size must be power of two and greater or equal to 32M */
- switch (radeon_gart_size) {
- case 4:
- case 8:
- case 16:
+ if (radeon_gart_size < 32) {
dev_warn(rdev->dev, "gart size (%d) too small forcing to 512M\n",
radeon_gart_size);
radeon_gart_size = 512;
- break;
- case 32:
- case 64:
- case 128:
- case 256:
- case 512:
- case 1024:
- case 2048:
- case 4096:
- break;
- default:
+
+ } else if (!radeon_check_pot_argument(radeon_gart_size)) {
dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n",
radeon_gart_size);
radeon_gart_size = 512;
- break;
}
- rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+ rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
+
/* AGP mode can only be -1, 1, 2, 4, 8 */
switch (radeon_agpmode) {
case -1:
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index a7677dd1ce98..4debd60e5aa6 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -355,14 +355,13 @@ int radeon_gart_init(struct radeon_device *rdev)
DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n",
rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages);
/* Allocate pages table */
- rdev->gart.pages = kzalloc(sizeof(void *) * rdev->gart.num_cpu_pages,
- GFP_KERNEL);
+ rdev->gart.pages = vzalloc(sizeof(void *) * rdev->gart.num_cpu_pages);
if (rdev->gart.pages == NULL) {
radeon_gart_fini(rdev);
return -ENOMEM;
}
- rdev->gart.pages_addr = kzalloc(sizeof(dma_addr_t) *
- rdev->gart.num_cpu_pages, GFP_KERNEL);
+ rdev->gart.pages_addr = vzalloc(sizeof(dma_addr_t) *
+ rdev->gart.num_cpu_pages);
if (rdev->gart.pages_addr == NULL) {
radeon_gart_fini(rdev);
return -ENOMEM;
@@ -388,8 +387,8 @@ void radeon_gart_fini(struct radeon_device *rdev)
radeon_gart_unbind(rdev, 0, rdev->gart.num_cpu_pages);
}
rdev->gart.ready = false;
- kfree(rdev->gart.pages);
- kfree(rdev->gart.pages_addr);
+ vfree(rdev->gart.pages);
+ vfree(rdev->gart.pages_addr);
rdev->gart.pages = NULL;
rdev->gart.pages_addr = NULL;
@@ -577,7 +576,7 @@ void radeon_vm_manager_fini(struct radeon_device *rdev)
*
* Global and local mutex must be locked!
*/
-int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm)
+static int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm)
{
struct radeon_vm *vm_evict;
@@ -1036,8 +1035,7 @@ static void radeon_vm_update_ptes(struct radeon_device *rdev,
pte = radeon_sa_bo_gpu_addr(vm->page_tables[pt_idx]);
pte += (addr & mask) * 8;
- if (((last_pte + 8 * count) != pte) ||
- ((count + nptes) > 1 << 11)) {
+ if ((last_pte + 8 * count) != pte) {
if (count) {
radeon_asic_vm_set_page(rdev, last_pte,
@@ -1148,17 +1146,17 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
if (RADEON_VM_BLOCK_SIZE > 11)
/* reserve space for one header for every 2k dwords */
- ndw += (nptes >> 11) * 3;
+ ndw += (nptes >> 11) * 4;
else
/* reserve space for one header for
every (1 << BLOCK_SIZE) entries */
- ndw += (nptes >> RADEON_VM_BLOCK_SIZE) * 3;
+ ndw += (nptes >> RADEON_VM_BLOCK_SIZE) * 4;
/* reserve space for pte addresses */
ndw += nptes * 2;
/* reserve space for one header for every 2k dwords */
- ndw += (npdes >> 11) * 3;
+ ndw += (npdes >> 11) * 4;
/* reserve space for pde addresses */
ndw += npdes * 2;
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index f38fbcc46935..fe5c1f6b7957 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -53,6 +53,7 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size,
struct drm_gem_object **obj)
{
struct radeon_bo *robj;
+ unsigned long max_size;
int r;
*obj = NULL;
@@ -60,11 +61,26 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size,
if (alignment < PAGE_SIZE) {
alignment = PAGE_SIZE;
}
+
+ /* maximun bo size is the minimun btw visible vram and gtt size */
+ max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size);
+ if (size > max_size) {
+ printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n",
+ __func__, __LINE__, size >> 20, max_size >> 20);
+ return -ENOMEM;
+ }
+
+retry:
r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj);
if (r) {
- if (r != -ERESTARTSYS)
+ if (r != -ERESTARTSYS) {
+ if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
+ initial_domain |= RADEON_GEM_DOMAIN_GTT;
+ goto retry;
+ }
DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
size, initial_domain, alignment, r);
+ }
return r;
}
*obj = &robj->gem_base;
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index a13ad9d707cf..0063df9d166d 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -370,6 +370,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
struct backlight_properties props;
struct radeon_backlight_privdata *pdata;
uint8_t backlight_level;
+ char bl_name[16];
if (!radeon_encoder->enc_priv)
return;
@@ -389,7 +390,9 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
memset(&props, 0, sizeof(props));
props.max_brightness = RADEON_MAX_BL_LEVEL;
props.type = BACKLIGHT_RAW;
- bd = backlight_device_register("radeon_bl", &drm_connector->kdev,
+ snprintf(bl_name, sizeof(bl_name),
+ "radeon_bl%d", dev->primary->index);
+ bd = backlight_device_register(bl_name, &drm_connector->kdev,
pdata, &radeon_backlight_ops, &props);
if (IS_ERR(bd)) {
DRM_ERROR("Backlight registration failed\n");
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 8b27dd6e3144..b91118ccef86 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -105,7 +105,6 @@ int radeon_bo_create(struct radeon_device *rdev,
struct radeon_bo *bo;
enum ttm_bo_type type;
unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
- unsigned long max_size = 0;
size_t acc_size;
int r;
@@ -121,18 +120,9 @@ int radeon_bo_create(struct radeon_device *rdev,
}
*bo_ptr = NULL;
- /* maximun bo size is the minimun btw visible vram and gtt size */
- max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size);
- if ((page_align << PAGE_SHIFT) >= max_size) {
- printk(KERN_WARNING "%s:%d alloc size %ldM bigger than %ldMb limit\n",
- __func__, __LINE__, page_align >> (20 - PAGE_SHIFT), max_size >> 20);
- return -ENOMEM;
- }
-
acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size,
sizeof(struct radeon_bo));
-retry:
bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
@@ -154,15 +144,6 @@ retry:
acc_size, sg, &radeon_ttm_bo_destroy);
up_read(&rdev->pm.mclk_lock);
if (unlikely(r != 0)) {
- if (r != -ERESTARTSYS) {
- if (domain == RADEON_GEM_DOMAIN_VRAM) {
- domain |= RADEON_GEM_DOMAIN_GTT;
- goto retry;
- }
- dev_err(rdev->dev,
- "object_init failed for (%lu, 0x%08X)\n",
- size, domain);
- }
return r;
}
*bo_ptr = bo;
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index df8dd7701643..b0db712060fb 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -2808,26 +2808,31 @@ void si_vm_set_page(struct radeon_device *rdev, uint64_t pe,
{
struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index];
uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
- int i;
- uint64_t value;
- radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 2 + count * 2));
- radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
- WRITE_DATA_DST_SEL(1)));
- radeon_ring_write(ring, pe);
- radeon_ring_write(ring, upper_32_bits(pe));
- for (i = 0; i < count; ++i) {
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- value = radeon_vm_map_gart(rdev, addr);
- value &= 0xFFFFFFFFFFFFF000ULL;
- } else if (flags & RADEON_VM_PAGE_VALID)
- value = addr;
- else
- value = 0;
- addr += incr;
- value |= r600_flags;
- radeon_ring_write(ring, value);
- radeon_ring_write(ring, upper_32_bits(value));
+ while (count) {
+ unsigned ndw = 2 + count * 2;
+ if (ndw > 0x3FFE)
+ ndw = 0x3FFE;
+
+ radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, ndw));
+ radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
+ WRITE_DATA_DST_SEL(1)));
+ radeon_ring_write(ring, pe);
+ radeon_ring_write(ring, upper_32_bits(pe));
+ for (; ndw > 2; ndw -= 2, --count, pe += 8) {
+ uint64_t value;
+ if (flags & RADEON_VM_PAGE_SYSTEM) {
+ value = radeon_vm_map_gart(rdev, addr);
+ value &= 0xFFFFFFFFFFFFF000ULL;
+ } else if (flags & RADEON_VM_PAGE_VALID)
+ value = addr;
+ else
+ value = 0;
+ addr += incr;
+ value |= r600_flags;
+ radeon_ring_write(ring, value);
+ radeon_ring_write(ring, upper_32_bits(value));
+ }
}
}
@@ -2868,6 +2873,10 @@ void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
radeon_ring_write(ring, 0);
radeon_ring_write(ring, 1 << vm->id);
+
+ /* sync PFP to ME, otherwise we might get invalid PFP reads */
+ radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
+ radeon_ring_write(ring, 0x0);
}
/*