tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   1b5044021070efa3259f3e9548dc35d1eb6aa844
commit: 6ac27241106bc946bd50032f4cd96899c6a6fe69 drm/amdgpu: add JPEG v2.0 
function supports
date:   7 months ago
config: s390-randconfig-r004-20200617 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 
487ca07fcc75d52755c9fe2ee05bcb3b6eeeec44)
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390-linux-gnu
        git checkout 6ac27241106bc946bd50032f4cd96899c6a6fe69
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_mode.h:33:
In file included from include/drm/drm_crtc.h:31:
In file included from include/linux/fb.h:17:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:118:21: note: expanded from macro '__swab32'
___constant_swab32(x) :                                               ^
include/uapi/linux/swab.h:19:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x0000ff00UL) <<  8) |                                 ^
In file included from drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:24:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:57:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_mode.h:33:
In file included from include/drm/drm_crtc.h:31:
In file included from include/linux/fb.h:17:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:118:21: note: expanded from macro '__swab32'
___constant_swab32(x) :                                               ^
include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x00ff0000UL) >>  8) |                                 ^
In file included from drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:24:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:57:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_mode.h:33:
In file included from include/drm/drm_crtc.h:31:
In file included from include/linux/fb.h:17:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:118:21: note: expanded from macro '__swab32'
___constant_swab32(x) :                                               ^
include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
^
In file included from drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:24:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:57:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_mode.h:33:
In file included from include/drm/drm_crtc.h:31:
In file included from include/linux/fb.h:17:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:12: note: expanded from macro '__swab32'
__fswab32(x))
^
In file included from drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:24:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:57:
In file included from drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_mode.h:33:
In file included from include/drm/drm_crtc.h:31:
In file included from include/linux/fb.h:17:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:503:33: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:513:46: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew(cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:523:46: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel(cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:585:20: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:593:20: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:601:20: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:610:21: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:619:21: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:628:21: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:442:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_insert_start' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_insert_start(struct amdgpu_ring *ring)
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:442:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_insert_start(struct amdgpu_ring *ring)
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:460:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_insert_end' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_insert_end(struct amdgpu_ring *ring)
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:460:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_insert_end(struct amdgpu_ring *ring)
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:479:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_emit_fence' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:479:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:528:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_emit_ib' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:528:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:579:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_emit_reg_wait' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:579:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:606:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_emit_vm_flush' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:606:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:621:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_emit_wreg' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg, 
uint32_t val)
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:621:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg, 
uint32_t val)
^
static
>> drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:639:6: warning: no previous prototype 
>> for function 'jpeg_v2_0_dec_ring_nop' [-Wmissing-prototypes]
void jpeg_v2_0_dec_ring_nop(struct amdgpu_ring *ring, uint32_t count)
^
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c:639:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
void jpeg_v2_0_dec_ring_nop(struct amdgpu_ring *ring, uint32_t count)
^
static
28 warnings generated.

vim +/jpeg_v2_0_dec_ring_insert_start +442 
drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c

   434  
   435  /**
   436   * jpeg_v2_0_dec_ring_insert_start - insert a start command
   437   *
   438   * @ring: amdgpu_ring pointer
   439   *
   440   * Write a start command to the ring.
   441   */
 > 442  void jpeg_v2_0_dec_ring_insert_start(struct amdgpu_ring *ring)
   443  {
   444          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
   445                  0, 0, PACKETJ_TYPE0));
   446          amdgpu_ring_write(ring, 0x68e04);
   447  
   448          amdgpu_ring_write(ring, 
PACKETJ(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
   449                  0, 0, PACKETJ_TYPE0));
   450          amdgpu_ring_write(ring, 0x80010000);
   451  }
   452  
   453  /**
   454   * jpeg_v2_0_dec_ring_insert_end - insert a end command
   455   *
   456   * @ring: amdgpu_ring pointer
   457   *
   458   * Write a end command to the ring.
   459   */
 > 460  void jpeg_v2_0_dec_ring_insert_end(struct amdgpu_ring *ring)
   461  {
   462          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
   463                  0, 0, PACKETJ_TYPE0));
   464          amdgpu_ring_write(ring, 0x68e04);
   465  
   466          amdgpu_ring_write(ring, 
PACKETJ(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
   467                  0, 0, PACKETJ_TYPE0));
   468          amdgpu_ring_write(ring, 0x00010000);
   469  }
   470  
   471  /**
   472   * jpeg_v2_0_dec_ring_emit_fence - emit an fence & trap command
   473   *
   474   * @ring: amdgpu_ring pointer
   475   * @fence: fence to emit
   476   *
   477   * Write a fence and a trap command to the ring.
   478   */
 > 479  void jpeg_v2_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, 
 > u64 seq,
   480                                  unsigned flags)
   481  {
   482          WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
   483  
   484          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JPEG_GPCOM_DATA0_INTERNAL_OFFSET,
   485                  0, 0, PACKETJ_TYPE0));
   486          amdgpu_ring_write(ring, seq);
   487  
   488          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JPEG_GPCOM_DATA1_INTERNAL_OFFSET,
   489                  0, 0, PACKETJ_TYPE0));
   490          amdgpu_ring_write(ring, seq);
   491  
   492          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_RB_MEM_WR_64BIT_BAR_LOW_INTERNAL_OFFSET,
   493                  0, 0, PACKETJ_TYPE0));
   494          amdgpu_ring_write(ring, lower_32_bits(addr));
   495  
   496          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_RB_MEM_WR_64BIT_BAR_HIGH_INTERNAL_OFFSET,
   497                  0, 0, PACKETJ_TYPE0));
   498          amdgpu_ring_write(ring, upper_32_bits(addr));
   499  
   500          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JPEG_GPCOM_CMD_INTERNAL_OFFSET,
   501                  0, 0, PACKETJ_TYPE0));
   502          amdgpu_ring_write(ring, 0x8);
   503  
   504          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JPEG_GPCOM_CMD_INTERNAL_OFFSET,
   505                  0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE4));
   506          amdgpu_ring_write(ring, 0);
   507  
   508          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
   509                  0, 0, PACKETJ_TYPE0));
   510          amdgpu_ring_write(ring, 0x3fbc);
   511  
   512          amdgpu_ring_write(ring, 
PACKETJ(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
   513                  0, 0, PACKETJ_TYPE0));
   514          amdgpu_ring_write(ring, 0x1);
   515  
   516          amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE7));
   517          amdgpu_ring_write(ring, 0);
   518  }
   519  
   520  /**
   521   * jpeg_v2_0_dec_ring_emit_ib - execute indirect buffer
   522   *
   523   * @ring: amdgpu_ring pointer
   524   * @ib: indirect buffer to execute
   525   *
   526   * Write ring commands to execute the indirect buffer.
   527   */
 > 528  void jpeg_v2_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
   529                                  struct amdgpu_job *job,
   530                                  struct amdgpu_ib *ib,
   531                                  uint32_t flags)
   532  {
   533          unsigned vmid = AMDGPU_JOB_GET_VMID(job);
   534  
   535          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_IB_VMID_INTERNAL_OFFSET,
   536                  0, 0, PACKETJ_TYPE0));
   537          amdgpu_ring_write(ring, (vmid | (vmid << 4)));
   538  
   539          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JPEG_VMID_INTERNAL_OFFSET,
   540                  0, 0, PACKETJ_TYPE0));
   541          amdgpu_ring_write(ring, (vmid | (vmid << 4)));
   542  
   543          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET,
   544                  0, 0, PACKETJ_TYPE0));
   545          amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
   546  
   547          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_IB_64BIT_BAR_HIGH_INTERNAL_OFFSET,
   548                  0, 0, PACKETJ_TYPE0));
   549          amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
   550  
   551          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_IB_SIZE_INTERNAL_OFFSET,
   552                  0, 0, PACKETJ_TYPE0));
   553          amdgpu_ring_write(ring, ib->length_dw);
   554  
   555          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_LOW_INTERNAL_OFFSET,
   556                  0, 0, PACKETJ_TYPE0));
   557          amdgpu_ring_write(ring, lower_32_bits(ring->gpu_addr));
   558  
   559          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_HIGH_INTERNAL_OFFSET,
   560                  0, 0, PACKETJ_TYPE0));
   561          amdgpu_ring_write(ring, upper_32_bits(ring->gpu_addr));
   562  
   563          amdgpu_ring_write(ring, PACKETJ(0, 0, PACKETJ_CONDITION_CHECK0, 
PACKETJ_TYPE2));
   564          amdgpu_ring_write(ring, 0);
   565  
   566          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_RB_COND_RD_TIMER_INTERNAL_OFFSET,
   567                  0, 0, PACKETJ_TYPE0));
   568          amdgpu_ring_write(ring, 0x01400200);
   569  
   570          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_RB_REF_DATA_INTERNAL_OFFSET,
   571                  0, 0, PACKETJ_TYPE0));
   572          amdgpu_ring_write(ring, 0x2);
   573  
   574          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_STATUS_INTERNAL_OFFSET,
   575                  0, PACKETJ_CONDITION_CHECK3, PACKETJ_TYPE3));
   576          amdgpu_ring_write(ring, 0x2);
   577  }
   578  
 > 579  void jpeg_v2_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring, 
 > uint32_t reg,
   580                                  uint32_t val, uint32_t mask)
   581  {
   582          uint32_t reg_offset = (reg << 2);
   583  
   584          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_RB_COND_RD_TIMER_INTERNAL_OFFSET,
   585                  0, 0, PACKETJ_TYPE0));
   586          amdgpu_ring_write(ring, 0x01400200);
   587  
   588          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_RB_REF_DATA_INTERNAL_OFFSET,
   589                  0, 0, PACKETJ_TYPE0));
   590          amdgpu_ring_write(ring, val);
   591  
   592          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
   593                  0, 0, PACKETJ_TYPE0));
   594          if (reg_offset >= 0x10000 && reg_offset <= 0x105ff) {
   595                  amdgpu_ring_write(ring, 0);
   596                  amdgpu_ring_write(ring,
   597                          PACKETJ((reg_offset >> 2), 0, 0, 
PACKETJ_TYPE3));
   598          } else {
   599                  amdgpu_ring_write(ring, reg_offset);
   600                  amdgpu_ring_write(ring, 
PACKETJ(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
   601                          0, 0, PACKETJ_TYPE3));
   602          }
   603          amdgpu_ring_write(ring, mask);
   604  }
   605  
 > 606  void jpeg_v2_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
   607                                  unsigned vmid, uint64_t pd_addr)
   608  {
   609          struct amdgpu_vmhub *hub = 
&ring->adev->vmhub[ring->funcs->vmhub];
   610          uint32_t data0, data1, mask;
   611  
   612          pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
   613  
   614          /* wait for register write */
   615          data0 = hub->ctx0_ptb_addr_lo32 + vmid * 2;
   616          data1 = lower_32_bits(pd_addr);
   617          mask = 0xffffffff;
   618          jpeg_v2_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
   619  }
   620  
 > 621  void jpeg_v2_0_dec_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t 
 > reg, uint32_t val)
   622  {
   623          uint32_t reg_offset = (reg << 2);
   624  
   625          amdgpu_ring_write(ring, 
PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
   626                  0, 0, PACKETJ_TYPE0));
   627          if (reg_offset >= 0x10000 && reg_offset <= 0x105ff) {
   628                  amdgpu_ring_write(ring, 0);
   629                  amdgpu_ring_write(ring,
   630                          PACKETJ((reg_offset >> 2), 0, 0, 
PACKETJ_TYPE0));
   631          } else {
   632                  amdgpu_ring_write(ring, reg_offset);
   633                  amdgpu_ring_write(ring, 
PACKETJ(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
   634                          0, 0, PACKETJ_TYPE0));
   635          }
   636          amdgpu_ring_write(ring, val);
   637  }
   638  
 > 639  void jpeg_v2_0_dec_ring_nop(struct amdgpu_ring *ring, uint32_t count)
   640  {
   641          int i;
   642  
   643          WARN_ON(ring->wptr % 2 || count % 2);
   644  
   645          for (i = 0; i < count / 2; i++) {
   646                  amdgpu_ring_write(ring, PACKETJ(0, 0, 0, 
PACKETJ_TYPE6));
   647                  amdgpu_ring_write(ring, 0);
   648          }
   649  }
   650  

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