Re: [Intel-gfx] [PATCH v2 3/6] drm/i915: Parameterize R_PWR_CLK_STATE register definition

2022-01-26 Thread Lucas De Marchi

On Mon, Jan 24, 2022 at 06:08:23PM -0800, Matt Roper wrote:

At the moment we only use R_PWR_CLK_STATE in the context of the RCS
engine, but upcoming support for compute engines will start using
instances relative to the CCS engine base offsets.  Let's parameterize
the register and move it to the engine reg header.

Cc: Jani Nikula 
Signed-off-by: Matt Roper 



Reviewed-by: Lucas De Marchi 

Lucas De Marchi


[Intel-gfx] [PATCH v2 3/6] drm/i915: Parameterize R_PWR_CLK_STATE register definition

2022-01-24 Thread Matt Roper
At the moment we only use R_PWR_CLK_STATE in the context of the RCS
engine, but upcoming support for compute engines will start using
instances relative to the CCS engine base offsets.  Let's parameterize
the register and move it to the engine reg header.

Cc: Jani Nikula 
Signed-off-by: Matt Roper 
---
 .../gpu/drm/i915/gem/selftests/i915_gem_context.c |  3 ++-
 drivers/gpu/drm/i915/gt/intel_engine_regs.h   | 15 +++
 drivers/gpu/drm/i915/gt/intel_sseu.c  |  2 +-
 drivers/gpu/drm/i915/i915_perf.c  |  4 ++--
 drivers/gpu/drm/i915/i915_reg.h   | 15 ---
 5 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c 
b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index 80d99b9c694f..7cc4fa8f8c56 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -8,6 +8,7 @@
 
 #include "gem/i915_gem_pm.h"
 #include "gt/intel_engine_pm.h"
+#include "gt/intel_engine_regs.h"
 #include "gt/intel_gt.h"
 #include "gt/intel_gt_requests.h"
 #include "gt/intel_reset.h"
@@ -894,7 +895,7 @@ static int rpcs_query_batch(struct drm_i915_gem_object 
*rpcs, struct i915_vma *v
return PTR_ERR(cmd);
 
*cmd++ = MI_STORE_REGISTER_MEM_GEN8;
-   *cmd++ = i915_mmio_reg_offset(GEN8_R_PWR_CLK_STATE);
+   *cmd++ = i915_mmio_reg_offset(GEN8_R_PWR_CLK_STATE(RENDER_RING_BASE));
*cmd++ = lower_32_bits(vma->node.start);
*cmd++ = upper_32_bits(vma->node.start);
*cmd = MI_BATCH_BUFFER_END;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_regs.h 
b/drivers/gpu/drm/i915/gt/intel_engine_regs.h
index 60511f310767..daf4a241cf77 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_regs.h
@@ -77,6 +77,21 @@
 #define RING_INSTPM(base)  _MMIO((base) + 0xc0)
 #define RING_CMD_CCTL(base)_MMIO((base) + 0xc4)
 #define ACTHD(base)_MMIO((base) + 0xc8)
+#define GEN8_R_PWR_CLK_STATE(base) _MMIO((base) + 0xc8)
+#define   GEN8_RPCS_ENABLE (1 << 31)
+#define   GEN8_RPCS_S_CNT_ENABLE   (1 << 18)
+#define   GEN8_RPCS_S_CNT_SHIFT15
+#define   GEN8_RPCS_S_CNT_MASK (0x7 << GEN8_RPCS_S_CNT_SHIFT)
+#define   GEN11_RPCS_S_CNT_SHIFT   12
+#define   GEN11_RPCS_S_CNT_MASK(0x3f << 
GEN11_RPCS_S_CNT_SHIFT)
+#define   GEN8_RPCS_SS_CNT_ENABLE  (1 << 11)
+#define   GEN8_RPCS_SS_CNT_SHIFT   8
+#define   GEN8_RPCS_SS_CNT_MASK(0x7 << 
GEN8_RPCS_SS_CNT_SHIFT)
+#define   GEN8_RPCS_EU_MAX_SHIFT   4
+#define   GEN8_RPCS_EU_MAX_MASK(0xf << 
GEN8_RPCS_EU_MAX_SHIFT)
+#define   GEN8_RPCS_EU_MIN_SHIFT   0
+#define   GEN8_RPCS_EU_MIN_MASK(0xf << 
GEN8_RPCS_EU_MIN_SHIFT)
+
 #define RING_RESET_CTL(base)   _MMIO((base) + 0xd0)
 #define   RESET_CTL_CAT_ERROR  REG_BIT(2)
 #define   RESET_CTL_READY_TO_RESET REG_BIT(1)
diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.c 
b/drivers/gpu/drm/i915/gt/intel_sseu.c
index bdf09051b8a0..f161087f30d0 100644
--- a/drivers/gpu/drm/i915/gt/intel_sseu.c
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.c
@@ -4,7 +4,7 @@
  */
 
 #include "i915_drv.h"
-#include "intel_lrc_reg.h"
+#include "intel_engine_regs.h"
 #include "intel_sseu.h"
 
 void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 804e87b6ed0c..1253e396a911 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -2420,7 +2420,7 @@ gen12_configure_all_contexts(struct i915_perf_stream 
*stream,
 {
struct flex regs[] = {
{
-   GEN8_R_PWR_CLK_STATE,
+   GEN8_R_PWR_CLK_STATE(RENDER_RING_BASE),
CTX_R_PWR_CLK_STATE,
},
};
@@ -2440,7 +2440,7 @@ lrc_configure_all_contexts(struct i915_perf_stream 
*stream,
 #define ctx_flexeuN(N) (ctx_flexeu0 + 2 * (N) + 1)
struct flex regs[] = {
{
-   GEN8_R_PWR_CLK_STATE,
+   GEN8_R_PWR_CLK_STATE(RENDER_RING_BASE),
CTX_R_PWR_CLK_STATE,
},
{
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7f8f88904077..573dea4516ef 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -272,21 +272,6 @@
 #define GEN12_SFC_DONE(n)  _MMIO(0x1cc000 + (n) * 0x1000)
 #define GEN12_SFC_DONE_MAX 4
 
-#define GEN8_R_PWR_CLK_STATE   _MMIO(0x20C8)
-#define   GEN8_RPCS_ENABLE (1 << 31)
-#define