On Tue, Jun 30, 2020 at 11:09:57PM -0400, Jonathan Marek wrote:

This sets up bw tables for A640/A650 similar to A618/A630, 0 DDR bandwidth vote, and the CNOC vote. A640 has the same CNOC addresses as A630 and was working, but this is required for A650 to work.

Eventually the bw table should be filled by querying the interconnect driver for each BW in the dts, but use these dummy tables for now.

Reviewed-by: Jordan Crouse jcrouse@codeaurora.org

And yes, I agree that we need to move this into the generic API sooner rather than later, but this should be good enough to get a working GPU/GMU.

Signed-off-by: Jonathan Marek jonathan@marek.ca

drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 74 +++++++++++++++++++++++++++ 1 file changed, 74 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c index 9921e632f1ca..ccd44d0418f8 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c @@ -281,6 +281,76 @@ static void a618_build_bw_table(struct a6xx_hfi_msg_bw_table *msg) msg->cnoc_cmds_data[1][0] = 0x60000001; }

+static void a640_build_bw_table(struct a6xx_hfi_msg_bw_table *msg) +{

• /*

• * Send a single "off" entry just to get things running
  

• * TODO: bus scaling
  

• */
  

• msg->bw_level_num = 1;
• msg->ddr_cmds_num = 3;
• msg->ddr_wait_bitmask = 0x01;
• msg->ddr_cmds_addrs[0] = 0x50000;
• msg->ddr_cmds_addrs[1] = 0x5003c;
• msg->ddr_cmds_addrs[2] = 0x5000c;
• msg->ddr_cmds_data[0][0] = 0x40000000;
• msg->ddr_cmds_data[0][1] = 0x40000000;
• msg->ddr_cmds_data[0][2] = 0x40000000;
• /*

• * These are the CX (CNOC) votes - these are used by the GMU but the
  

• * votes are known and fixed for the target
  

• */
  

• msg->cnoc_cmds_num = 3;
• msg->cnoc_wait_bitmask = 0x01;
• msg->cnoc_cmds_addrs[0] = 0x50034;
• msg->cnoc_cmds_addrs[1] = 0x5007c;
• msg->cnoc_cmds_addrs[2] = 0x5004c;
• msg->cnoc_cmds_data[0][0] = 0x40000000;
• msg->cnoc_cmds_data[0][1] = 0x00000000;
• msg->cnoc_cmds_data[0][2] = 0x40000000;
• msg->cnoc_cmds_data[1][0] = 0x60000001;
• msg->cnoc_cmds_data[1][1] = 0x20000001;
• msg->cnoc_cmds_data[1][2] = 0x60000001;

+}

+static void a650_build_bw_table(struct a6xx_hfi_msg_bw_table *msg) +{

• /*

• * Send a single "off" entry just to get things running
  

• * TODO: bus scaling
  

• */
  

• msg->bw_level_num = 1;
• msg->ddr_cmds_num = 3;
• msg->ddr_wait_bitmask = 0x01;
• msg->ddr_cmds_addrs[0] = 0x50000;
• msg->ddr_cmds_addrs[1] = 0x50004;
• msg->ddr_cmds_addrs[2] = 0x5007c;
• msg->ddr_cmds_data[0][0] = 0x40000000;
• msg->ddr_cmds_data[0][1] = 0x40000000;
• msg->ddr_cmds_data[0][2] = 0x40000000;
• /*

• * These are the CX (CNOC) votes - these are used by the GMU but the
  

• * votes are known and fixed for the target
  

• */
  

• msg->cnoc_cmds_num = 1;
• msg->cnoc_wait_bitmask = 0x01;
• msg->cnoc_cmds_addrs[0] = 0x500a4;
• msg->cnoc_cmds_data[0][0] = 0x40000000;
• msg->cnoc_cmds_data[1][0] = 0x60000001;

+}

static void a6xx_build_bw_table(struct a6xx_hfi_msg_bw_table *msg) { /* Send a single "off" entry since the 630 GMU doesn't do bus scaling */ @@ -327,6 +397,10 @@ static int a6xx_hfi_send_bw_table(struct a6xx_gmu *gmu)

if (adreno_is_a618(adreno_gpu)) a618_build_bw_table(&msg);

• else if (adreno_is_a640(adreno_gpu))

• a640_build_bw_table(&msg);
  

• else if (adreno_is_a650(adreno_gpu))

• a650_build_bw_table(&msg);
  

  else a6xx_build_bw_table(&msg);

-- 2.26.1