| Message ID | 1365543166-7051-3-git-send-email-rodrigo.vivi@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Apr 09, 2013 at 06:32:45PM -0300, Rodrigo Vivi wrote: > According to SNB GT PM Programming Guide page 9, > Write Min Frequency Table is 09h I think this is the winner of what workarounds the hang... (Since patch 3 is a no-op, patch 1 still reverts a change to the media turbo mode requested by VPG.) The original code for this patch is correct, I have in the bspec: 0x8 WRITE_MIN_FREQ_TABLE 0x9 READ_MIN_FREQ_TABLE So the effect of this patch is to undo the ring/uncore scaling with GPU frequency which will slow everything down and is less likely to provoke uncore death. -Chris
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index fc4f542f..5dcc09e 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4305,7 +4305,7 @@ #define GEN6_PCODE_MAILBOX 0x138124 #define GEN6_PCODE_READY (1<<31) #define GEN6_READ_OC_PARAMS 0xc -#define GEN6_PCODE_WRITE_MIN_FREQ_TABLE 0x8 +#define GEN6_PCODE_WRITE_MIN_FREQ_TABLE 0x9 #define GEN6_PCODE_READ_MIN_FREQ_TABLE 0x9 #define GEN6_PCODE_WRITE_RC6VIDS 0x4 #define GEN6_PCODE_READ_RC6VIDS 0x5
According to SNB GT PM Programming Guide page 9, Write Min Frequency Table is 09h Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> --- drivers/gpu/drm/i915/i915_reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)