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intel-gfx@lists.freedesktop.org >>>> Cc: Sousa, Gustavo ; Roper, Matthew D >>>> >>>> Subject: [PATCH 05/16] drm/xe/xe3p_lpg: Add MCR steering >>>> >>>> From: Matt Roper >>>> >>>> Xe3p_LPG has nearly identical steering to Xe2 and Xe3. The only DSS/XeCore >>>> change from those IPs is an additional range from 0xDE00-0xDE7F that was >>>> previously reserved, so we can simply grow one of the existing ranges in the Xe2 >>>> table to include it. Similarly, the "instance0" table is also almost identical, but >>>> gains one additional PSMI range and requires a separate table. >>>> >>>> Bspec: 75242 >>>> Signed-off-by: Matt Roper >>>> Signed-off-by: Gustavo Sousa >>>> --- >>>> drivers/gpu/drm/xe/xe_gt_mcr.c | 18 +++++++++++++++++- >>>> 1 file changed, 17 insertions(+), 1 deletion(-) >>>> >>>> diff --git a/drivers/gpu/drm/xe/xe_gt_mcr.c b/drivers/gpu/drm/xe/xe_gt_mcr.c >>>> index 7c1fe9ac120d..b112e551fc79 100644 >>>> --- a/drivers/gpu/drm/xe/xe_gt_mcr.c >>>> +++ b/drivers/gpu/drm/xe/xe_gt_mcr.c >>>> @@ -201,7 +201,7 @@ static const struct xe_mmio_range >>>> xe2lpg_dss_steering_table[] = { >>>> { 0x009680, 0x0096FF }, /* DSS */ >>>> { 0x00D800, 0x00D87F }, /* SLICE */ >>>> { 0x00DC00, 0x00DCFF }, /* SLICE */ >>>> - { 0x00DE80, 0x00E8FF }, /* DSS (0xE000-0xE0FF reserved) */ >>>> + { 0x00DE00, 0x00E8FF }, /* DSS (0xE000-0xE0FF reserved) */ >>>> { 0x00E980, 0x00E9FF }, /* SLICE */ >>>> { 0x013000, 0x0133FF }, /* DSS (0x13000-0x131FF), SLICE (0x13200- >>>> 0x133FF) */ >>>> {}, >>>> @@ -280,6 +280,19 @@ static const struct xe_mmio_range >>>> xe3p_xpc_instance0_steering_table[] = { >>>> {}, >>>> }; >>>> >>>> +static const struct xe_mmio_range xe3p_lpg_instance0_steering_table[] = { >>>> + { 0x004000, 0x004AFF }, /* GAM, rsvd, GAMWKR */ >>>> + { 0x008700, 0x00887F }, /* NODE */ >>>> + { 0x00B000, 0x00B3FF }, /* NODE, L3BANK */ >>>> + { 0x00B500, 0x00B6FF }, /* PSMI */ >>> Hi, >>> Could we extend the range till 0x00BEFF ? >>>> + { 0x00C800, 0x00CFFF }, /* GAM */ >>>> + { 0x00D880, 0x00D8FF }, /* NODE */ >>>> + { 0x00DD00, 0x00DDFF }, /* MEMPIPE */ >>> Same as we did here extend till reserved. >> >> We usually only include a reserved range if the range is preceeded and >> followed by MCR ranges of the same steering group. > Yes, But there's a bit of confusion here. We are extending 0x00DDFF for > MEMPIPE, but we are not extending the PSMI group to 0x00BEFF? I took a look at Bspec history and the range has been split into ranges [0x00DD00:0x00DD7F] and [0x00DD80:0x00DDFF], with the later being tagged as reserved. I believe, by the time we wrote this patch, the range was still [0x00DD00:0x00DDFF]. Good catch! I'll update this. Thanks! -- Gustavo Sousa > > BR, > Dnyaneshwar >> >> This doesn't seem to be the case here. > > >> >> -- >> Gustavo Sousa